Body Temperature Regulation: The processes of heating and cooling that an organism uses to control its temperature.Body Temperature: The measure of the level of heat of a human or animal.Temperature: The property of objects that determines the direction of heat flow when they are placed in direct thermal contact. The temperature is the energy of microscopic motions (vibrational and translational) of the particles of atoms.Skin Temperature: The TEMPERATURE at the outer surface of the body.Sweating: The process of exocrine secretion of the SWEAT GLANDS, including the aqueous sweat from the ECCRINE GLANDS and the complex viscous fluids of the APOCRINE GLANDS.Hypothermia: Lower than normal body temperature, especially in warm-blooded animals.Cold Temperature: An absence of warmth or heat or a temperature notably below an accustomed norm.Pyrogens: Substances capable of increasing BODY TEMPERATURE and cause FEVER and may be used for FEVER THERAPY. They may be of microbial origin, often POLYSACCHARIDES, and may contaminate distilled water.Fever: An abnormal elevation of body temperature, usually as a result of a pathologic process.Hypothalamus: Ventral part of the DIENCEPHALON extending from the region of the OPTIC CHIASM to the caudal border of the MAMMILLARY BODIES and forming the inferior and lateral walls of the THIRD VENTRICLE.Hot Temperature: Presence of warmth or heat or a temperature notably higher than an accustomed norm.Hypothalamus, Anterior: The front portion of the HYPOTHALAMUS separated into the preoptic region and the supraoptic region. The preoptic region is made up of the periventricular GRAY MATTER of the rostral portion of the THIRD VENTRICLE and contains the preoptic ventricular nucleus and the medial preoptic nucleus. The supraoptic region contains the PARAVENTRICULAR HYPOTHALAMIC NUCLEUS, the SUPRAOPTIC NUCLEUS, the ANTERIOR HYPOTHALAMIC NUCLEUS, and the SUPRACHIASMATIC NUCLEUS.Circadian Rhythm: The regular recurrence, in cycles of about 24 hours, of biological processes or activities, such as sensitivity to drugs and stimuli, hormone secretion, sleeping, and feeding.Attention Deficit Disorder with Hyperactivity: A behavior disorder originating in childhood in which the essential features are signs of developmentally inappropriate inattention, impulsivity, and hyperactivity. Although most individuals have symptoms of both inattention and hyperactivity-impulsivity, one or the other pattern may be predominant. The disorder is more frequent in males than females. Onset is in childhood. Symptoms often attenuate during late adolescence although a minority experience the full complement of symptoms into mid-adulthood. (From DSM-V)Internet: A loose confederation of computer communication networks around the world. The networks that make up the Internet are connected through several backbone networks. The Internet grew out of the US Government ARPAnet project and was designed to facilitate information exchange.Methylphenidate: A central nervous system stimulant used most commonly in the treatment of ATTENTION DEFICIT DISORDER in children and for NARCOLEPSY. Its mechanisms appear to be similar to those of DEXTROAMPHETAMINE. The d-isomer of this drug is referred to as DEXMETHYLPHENIDATE HYDROCHLORIDE.Learning Disorders: Conditions characterized by a significant discrepancy between an individual's perceived level of intellect and their ability to acquire new language and other cognitive skills. These disorders may result from organic or psychological conditions. Relatively common subtypes include DYSLEXIA, DYSCALCULIA, and DYSGRAPHIA.GeorgiaGeorgia (Republic)Thermogenesis: The generation of heat in order to maintain body temperature. The uncoupled oxidation of fatty acids contained within brown adipose tissue and SHIVERING are examples of thermogenesis in MAMMALS.Hypothermia, Induced: Abnormally low BODY TEMPERATURE that is intentionally induced in warm-blooded animals by artificial means. In humans, mild or moderate hypothermia has been used to reduce tissue damages, particularly after cardiac or spinal cord injuries and during subsequent surgeries.Hippocampus: A curved elevation of GRAY MATTER extending the entire length of the floor of the TEMPORAL HORN of the LATERAL VENTRICLE (see also TEMPORAL LOBE). The hippocampus proper, subiculum, and DENTATE GYRUS constitute the hippocampal formation. Sometimes authors include the ENTORHINAL CORTEX in the hippocampal formation.Angiocardiography: Radiography of the heart and great vessels after injection of a contrast medium.Lateral Ligament, Ankle: LATERAL LIGAMENTS of the ANKLE JOINT. It includes inferior tibiofibular ligaments.Theta Rhythm: Brain waves characterized by a frequency of 4-7 Hz, usually observed in the temporal lobes when the individual is awake, but relaxed and sleepy.Silicon: A trace element that constitutes about 27.6% of the earth's crust in the form of SILICON DIOXIDE. It does not occur free in nature. Silicon has the atomic symbol Si, atomic number 14, and atomic weight [28.084; 28.086].Birds: Warm-blooded VERTEBRATES possessing FEATHERS and belonging to the class Aves.Araceae: A plant family of the order Arales, subclass Arecidae, class Liliopsida (monocot). Many members contain OXALIC ACID and calcium oxalate (OXALATES).Fluoxetine: The first highly specific serotonin uptake inhibitor. It is used as an antidepressant and often has a more acceptable side-effects profile than traditional antidepressants.Benzodiazepines: A group of two-ring heterocyclic compounds consisting of a benzene ring fused to a diazepine ring.Antipsychotic Agents: Agents that control agitated psychotic behavior, alleviate acute psychotic states, reduce psychotic symptoms, and exert a quieting effect. They are used in SCHIZOPHRENIA; senile dementia; transient psychosis following surgery; or MYOCARDIAL INFARCTION; etc. These drugs are often referred to as neuroleptics alluding to the tendency to produce neurological side effects, but not all antipsychotics are likely to produce such effects. Many of these drugs may also be effective against nausea, emesis, and pruritus.Serotonin Uptake Inhibitors: Compounds that specifically inhibit the reuptake of serotonin in the brain.Pirenzepine: An antimuscarinic agent that inhibits gastric secretion at lower doses than are required to affect gastrointestinal motility, salivary, central nervous system, cardiovascular, ocular, and urinary function. It promotes the healing of duodenal ulcers and due to its cytoprotective action is beneficial in the prevention of duodenal ulcer recurrence. It also potentiates the effect of other antiulcer agents such as CIMETIDINE and RANITIDINE. It is generally well tolerated by patients.Risperidone: A selective blocker of DOPAMINE D2 RECEPTORS and SEROTONIN 5-HT2 RECEPTORS that acts as an atypical antipsychotic agent. It has been shown to improve both positive and negative symptoms in the treatment of SCHIZOPHRENIA.Antidepressive Agents, Second-Generation: A structurally and mechanistically diverse group of drugs that are not tricyclics or monoamine oxidase inhibitors. The most clinically important appear to act selectively on serotonergic systems, especially by inhibiting serotonin reuptake.Quinolones: A group of derivatives of naphthyridine carboxylic acid, quinoline carboxylic acid, or NALIDIXIC ACID.Itraconazole: A triazole antifungal agent that inhibits cytochrome P-450-dependent enzymes required for ERGOSTEROL synthesis.Solutions: The homogeneous mixtures formed by the mixing of a solid, liquid, or gaseous substance (solute) with a liquid (the solvent), from which the dissolved substances can be recovered by physical processes. (From Grant & Hackh's Chemical Dictionary, 5th ed)Pharmaceutical Solutions: Homogeneous liquid preparations that contain one or more chemical substances dissolved, i.e., molecularly dispersed, in a suitable solvent or mixture of mutually miscible solvents. For reasons of their ingredients, method of preparation, or use, they do not fall into another group of products.Administration, Oral: The giving of drugs, chemicals, or other substances by mouth.PiperazinesDiabetes Mellitus: A heterogeneous group of disorders characterized by HYPERGLYCEMIA and GLUCOSE INTOLERANCE.Diabetes Mellitus, Type 1: A subtype of DIABETES MELLITUS that is characterized by INSULIN deficiency. It is manifested by the sudden onset of severe HYPERGLYCEMIA, rapid progression to DIABETIC KETOACIDOSIS, and DEATH unless treated with insulin. The disease may occur at any age, but is most common in childhood or adolescence.Diabetes Mellitus, Type 2: A subclass of DIABETES MELLITUS that is not INSULIN-responsive or dependent (NIDDM). It is characterized initially by INSULIN RESISTANCE and HYPERINSULINEMIA; and eventually by GLUCOSE INTOLERANCE; HYPERGLYCEMIA; and overt diabetes. Type II diabetes mellitus is no longer considered a disease exclusively found in adults. Patients seldom develop KETOSIS but often exhibit OBESITY.Diabetes Complications: Conditions or pathological processes associated with the disease of diabetes mellitus. Due to the impaired control of BLOOD GLUCOSE level in diabetic patients, pathological processes develop in numerous tissues and organs including the EYE, the KIDNEY, the BLOOD VESSELS, and the NERVE TISSUE.Energy Metabolism: The chemical reactions involved in the production and utilization of various forms of energy in cells.Dose-Response Relationship, Drug: The relationship between the dose of an administered drug and the response of the organism to the drug.Basal Ganglia Diseases: Diseases of the BASAL GANGLIA including the PUTAMEN; GLOBUS PALLIDUS; claustrum; AMYGDALA; and CAUDATE NUCLEUS. DYSKINESIAS (most notably involuntary movements and alterations of the rate of movement) represent the primary clinical manifestations of these disorders. Common etiologies include CEREBROVASCULAR DISORDERS; NEURODEGENERATIVE DISEASES; and CRANIOCEREBRAL TRAUMA.Schizophrenia: A severe emotional disorder of psychotic depth characteristically marked by a retreat from reality with delusion formation, HALLUCINATIONS, emotional disharmony, and regressive behavior.Extrapyramidal Tracts: Uncrossed tracts of motor nerves from the brain to the anterior horns of the spinal cord, involved in reflexes, locomotion, complex movements, and postural control.Double-Blind Method: A method of studying a drug or procedure in which both the subjects and investigators are kept unaware of who is actually getting which specific treatment.Tablets: Solid dosage forms, of varying weight, size, and shape, which may be molded or compressed, and which contain a medicinal substance in pure or diluted form. (Dorland, 28th ed)

Skin morphology and its role in thermoregulation in mole-rats, Heterocephalus glaber and Cryptomys hottentotus. (1/2331)

The skin structure of 2 Bathyergid rodents, the naked mole-rat (Heterocephalus glaber) and the common mole-rat (Cryptomys hottentotus) is compared, to investigate whether thermoregulatory differences may be attributed to different skin features. Histological and ultrastructural studies of the dorsal skin of these closely related species show morphological and structural similarities but differences in the degree of skin folding, thickness of the integument and dermal infrastructure were evident. The skin of the common mole-rat conforms with expected morphological/histological arrangements that are commonly found in mammalian skin. Many features of the skin of the naked mole-rat, such as the lack of an insulating layer and the loosely folded morphological arrangement contribute to poikilothermic responses to changing temperatures of this mammal. Further evidence for poikilothermy in the naked mole-rat is indicated by the presence of pigment containing cells in the dermis, rather than the epidermis, as commonly occurs in homeotherms. Lack of fur is compensated by a thicker epidermal layer and a marked reduction in sweat glands. Differences in skin morphology thus contribute substantially to the different thermoregulatory abilities of the 2 Bathyergids. The skin morphology is related to the poor thermoinsulatory ability of the animals while simultaneously facilitating heat transfer from the environment to the animal by thigmothermy and/or other behavioural means.  (+info)

Temperature regulation and heat dissipation during flight in birds. (2/2331)

Core and skin temperature were measured by radiotelemetry in starlings (Sturnus vulgaris) during 30 min flights in a wind tunnel. Core temperature was independent of ambient temperature from 0 to 28 degrees C. The temporal mean of the monitored core temperature during flight was 42-7 degrees C in one bird and 44-0 degrees C in another. These temperatures are 2-4 degrees C higher than the resting temperature in starlings, and are among the highest steady-state temperatures observed in any animal. Skin temperature on the breast was within a few degrees of core temperature. In some locations skin temperature was higher at low ambient temperatures than at intermediate ambient temperatures. An analysis of the data shows that a high core temperature does not function as an aid to head dissipation. On the contrary, insulation is adjusted to maintain a high temperature, presumably because it is necessary for flight. The increase in skin temperature at low ambient temperatures is believed to be a result of a decrease in heat flow through the breast feathers brought about by feather adjustments, to compensate for an unavoidable increase in heat flow in unfeathered or poorly feathered parts of the body.  (+info)

Modulation of the thermoregulatory sweating response to mild hyperthermia during activation of the muscle metaboreflex in humans. (3/2331)

1. To investigate the effect of the muscle metaboreflex on the thermoregulatory sweating response in humans, eight healthy male subjects performed sustained isometric handgrip exercise in an environmental chamber (35 C and 50 % relative humidity) at 30 or 45 % maximal voluntary contraction (MVC), at the end of which the blood circulation to the forearm was occluded for 120 s. The environmental conditions were such as to produce sweating by increase in skin temperature without a marked change in oesophageal temperature. 2. During circulatory occlusion after handgrip exercise at 30 % MVC for 120 s or at 45 % MVC for 60 s, the sweating rate (SR) on the chest and forearm (hairy regions), and the mean arterial blood pressure were significantly above baseline values (P < 0.05). There were no changes from baseline values in the oesophageal temperature, mean skin temperature, or SR on the palm (hairless regions). 3. During the occlusion after handgrip exercise at 30 % MVC for 60 s and during the occlusion alone, none of the measured parameters differed from baseline values. 4. It is concluded that, under mildly hyperthermic conditions, the thermoregulatory sweating response on the hairy regions is modulated by afferent signals from muscle metaboreceptors.  (+info)

Reversing adipocyte differentiation: implications for treatment of obesity. (4/2331)

Conventional treatment of obesity reduces fat in mature adipocytes but leaves them with lipogenic enzymes capable of rapid resynthesis of fat, a likely factor in treatment failure. Adenovirus-induced hyperleptinemia in normal rats results in rapid nonketotic fat loss that persists after hyperleptinemia disappears, whereas pair-fed controls regain their weight in 2 weeks. We report here that the hyperleptinemia depletes adipocyte fat while profoundly down-regulating lipogenic enzymes and their transcription factor, peroxisome proliferator-activated receptor (PPAR)gamma in epididymal fat; enzymes of fatty acid oxidation and their transcription factor, PPARalpha, normally low in adipocytes, are up-regulated, as are uncoupling proteins 1 and 2. This transformation of adipocytes from cells that store triglycerides to fatty acid-oxidizing cells is accompanied by loss of the adipocyte markers, adipocyte fatty acid-binding protein 2, tumor necrosis factor alpha, and leptin, and by the appearance of the preadipocyte marker Pref-1. These findings suggest a strategy for the treatment of obesity by alteration of the adipocyte phenotype.  (+info)

Effects of different light intensities during the daytime on circadian rhythm of core temperature in humans. (5/2331)

The present study was to determine the effects of bright light exposure during the daytime on core temperature rhythm. Eight female students participated as subjects. They were exposed to bright light of 5000 lux or dim light of 200 lux for 13 hours (06:30-19:30) for two consecutive days. Except the sleep period (22:30-06:30) and during the bright light exposure, light intensity was controlled at 200 lux. Rectal temperature data were collected every 10 min throughout the whole experimental period. The mean level of rectal temperature was not significantly different between the bright and the dim light conditions. However, the evening fall and the morning rise of rectal temperature were significantly greater in the bright light conditions on Day 2 compared to the dim. Furthermore, cosinor analysis showed that the acrophase of rectal temperature rhythm was earlier on Day 2 in the bright light conditions than the dim, and was significantly delayed on Day 2 compared to Day 1 in the dim light conditions. These results suggest that low intensity during the daytime for two consecutive days may induce a phase delay of core temperature rhythm rather than the bright light exposure at least in normally entrained female subjects.  (+info)

The Parkes Lecture. Heat and the testis. (6/2331)

The evidence for the lower temperature of the testes of many mammals is summarized, and the reasons suggested for the descent of the testes into a scrotum are discussed. Descriptions are given of the various techniques used for studying the effects of heat on the testis, whole body heating, local heating of the testes (by inducing cryptorchidism, scrotal insulation or immersion of the scrotum in a water bath), and heating of tissue or cell preparations in vitro. The effects of heat are discussed, effects on the testis (weight, histology, physiology, biochemistry and endocrinology), on the numbers and motility of spermatozoa in rete testis fluid and semen, on fertilizing ability of spermatozoa and on the subsequent development of the embryos produced when spermatozoa from heated testes are used to fertilize normal ova. The possible mechanisms for the damaging effects of heat are discussed, as well as the importance of heat-induced abnormalities in male reproduction in domestic animals and humans.  (+info)

Fever: links with an ancient receptor. (7/2331)

Recent advances have provided evidence that prostaglandin E2 mediates the generation of fever in response to interleukin-1 or lipopolysaccharide and have reinforced the similarities of signaling downstream of these two pyrogens.  (+info)

Cytokines as endogenous pyrogens. (8/2331)

Cytokines are pleiotropic molecules mediating several pathologic processes. Long before the discovery of cytokines as immune system growth factors or as bone marrow stimulants, investigators learned a great deal about cytokines when they studied them as the endogenous mediators of fever. The terms "granulocytic" or "endogenous pyrogen" were used to describe substances with the biologic property of fever induction. Today, we recognize that pyrogenicity is a fundamental biologic property of several cytokines and hence the clinically recognizeable property of fever links host perturbations during disease with fundamental perturbations in cell biology. In this review, the discoveries made on endogenous pyrogens are revisited, with insights into the importance of the earlier work to the present-day understanding of cytokines in health and in disease.  (+info)

Birds, being homeothermic, are expected to keep their body temperatures within rather narrow limits. However, it turns out that individuals are able to use body temperature regulation in a seemingly adaptive way. Resident birds in regions with a pronounced winter, regularly reduce body temperature to save energy invested in thermoregulation. Since individuals only seem to use this possibility if they need to, an interesting future research question would be to estimate the costs of this physiological mechanism. Also in hot environments, birds are not strict in their thermoregulation but this time let their body temperature increase above their normal one of about 42 °C. We have found individuals to have body temperatures around 46.5 °C in hot conditions.. ...
View Notes - 2422010WtrOutlinesC24Nutrition from BIO 242 at Bellevue College. Chapter 24: Nutrition, Metabolism, and Body Temperature Regulation I Introduction A. Defining health 1. Earlier times:
The energy expended by "warm-blooded" organisms, such as ourselves, to regulate our body temperature is enormous: temperature regulation is costly. For example, at low environmental temperatures, people might have to expend 1800 kcal/day, or more, solely to generate the heat necessary to maintain a body temperature of 37°C and perhaps 10% more at febrile temperatures. This expenditure of energy often amounts to over 90% of the total energy used in any given day for performing external work. The energy, of course, comes from the food we eat, and as a result, we must eat an equivalent amount of kcal of food each day just to regulate body temperature. On days when our food intake falls below our daily energy expenditure, we rely on our stores of fat for this source of energy, resulting in a loss of weight. One can calculate, approximately, the amount of energy saved by a resting human-sized organism which does not regulate its body temperature, and therefore remains at a constant environmental ...
When dietary protein is in excess, amino acids are Protein Metabolism When dietary protein is in excess, amino acids are Oxidized for energy Converted into fat for storage
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New discoveries about the mechanism responsible for heat generation in the body related to fat tissue oppose classical views in the field and could lead to new ways to fight metabolic disorders associated with obesity, according to a study led by Georgia State University.
Go to: Introduction Diabetes mellitus, commonly known as diabetes, refers to a group of metabolic disorders which are associated with an impaired ability to regulate glycemia. Type 1 and type 2 diabetes are the most prevalent forms of the disease representing ~10 and ~90% of cases, respectively.1 Type 1 diabetes was fo
Highlighted Article: A claim that zebrafish exhibit emotional fever, using behavioural thermoregulation to increase temperature in response to stress, was tested; no evidence was found for a stress-induced preference for warmer areas. ...
Background: Protection against cold is vitally important in prehospital trauma care to reduce heat loss and prevent body core cooling.. Objectives: Evaluate the effect on cold stress and thermoregulation in volunteer subjects byutilising additional insulation on a spineboard (I). Determine thermal insulation properties of blankets and rescue bags in different wind conditions (II). Establish the utility of wet clothing removal or the addition of a vapour barrier by determining the effect on heat loss within different levels of insulation in cold and warm ambient temperatures (III) and evaluating the effect on cold stress and thermoregulation in volunteer subjects (IV).. Methods: Aural canal temperature, sensation of shivering and cold discomfort was evaluated in volunteer subjects, immobilised on non-insulated (n=10) or insulated (n=9) spineboards in cold outdoor conditions (I). A thermal manikin was setup inside a climatic chamber and total resultant thermal insulation for the selected ensembles ...
The synthesis and biological evaluation on thermoregulation of 39 peptides related to bombesin (structural analogues or other naturally occurring peptides) are described. The bioassay system reported measures the ability of peptides injected intracisternally to lower body temperature of cold (4 degrees C) exposed rats. The most potent analogues of bombesin were those in which positions one to five (not included) were altered, indicating that the decapeptide C terminal was sufficient for full potency. Gln at the seventh position and Gly at the 11th position could be replaced by D-Gln and D-Ala (but not D-Pro or D-Phe), respectively, without any change in potency. Methionine at the 14 position could be replaced with its D isomer with retention of 10% biological activity. Any other alteration of the C terminus (deletions or free acid with the exception of the N-methylamide) drastically reduced the biological potency of those peptides. Among other naturally occurring peptides, alytesin was found to ...
TY - JOUR. T1 - Thermoregulation of the rabbit during the late phase of endotoxin fever. AU - Vybíral, Stanislav. AU - Székely, M.. AU - Janský, Ladislav. AU - Černý, Luděk. PY - 1987/9. Y1 - 1987/9. N2 - In the late phase of the fever occurring 120 or more min after i.v. injection of endotoxin (1 ug/kg) to female rabbits, marked shifts of thresholds for respiratory evaporative heat loss and for peripheral vasodilatation to higher body core temperatures were observed. In contrast, the threshold body core temperature for cold thermogenesis was shifted downwards. As a result, the interthreshold zone was widened. Within the body temperature range of 37.4 to 39.9°C neither heat production or heat loss mechanisms were operant and the body temperature was determined mainly by passive heat transfer between the body and the environment. Outside this zone, the sensitivities of the heat and cold deference activities to changes in body core temperature appeared to be unchanged.. AB - In the late ...
The induction of a mild reduction in body core temperature has been demonstrated to provide neuroprotection for patients who have suffered a medical event resulting in ischemia to the brain or vital organs. Temperatures in the range of 32-34 °C provide the required level of protection and can be produced and maintained by diverse means for periods of days. Rewarming from hypothermia must be conducted slowly to avoid serious adverse consequences and usually is performed under control of the thermal therapeutic device based on a closed-loop feedback strategy based on the patients core temperature. Given the sensitivity and criticality of this process, it is important that the device control system be able to interact with the human thermoregulation system, which itself is highly nonlinear. The therapeutic hypothermia device must be calibrated periodically to ensure that its performance is accurate and safe for the patient. In general, calibration processes are conducted with the hypothermia ...
Neuropeptides are a diverse assemblage of signalling molecules that have key roles in the regulation of behaviour. Understanding the evolutionary relationships and functions of the plethora of neuropeptides has presented a considerable challenge to biologists. Based on presentations and discussions at a Royal Society meeting in 2017, three companion Review articles by Elphick et al., Jékely et al. and DeLaney et al. discuss advances in our knowledge of neuropeptide evolution and function and the techniques that have facilitated progress in this field of research.. ...
This paper presents an updated and augmented version of the Wissler human thermoregulation model that has been developed continuously over the past 50 years. The existing Fortran code is translated into C with extensive embedded commentary. A graphical user interface (GUI) has been developed in Python to facilitate convenient user designation of input and output variables and formatting of data presentation. Use of the code with the GUI is described and demonstrated. New physiological elements were added to the model to represent the hands and feet, including the unique vascular structures adapted for heat transfer associated with glabrous skin. The heat transfer function and efficacy of glabrous skin is unique within the entire body based on the capacity for a very high rate of blood perfusion and the novel capability for dynamic regulation of blood flow. The model was applied to quantify the absolute and relative contributions of glabrous skin flow to thermoregulation for varying levels of ...
1000 traditional pocketed springs Sumptuous pillow top layer Two layers of regular feel memory foam Soft durable polyester fillings Integrated hydrophilic fibres promote body temperature regulation and help prevent a feeling of heat, moisture or cold, keeping the body temperature at an optimum
Water Temperature: Several studies have examined the effects of providing cool water to birds during hot weather. In most of these studies, water temperature has improved the performance of broilers and layers. Any water temperature below the body temperature of the bird will be beneficial. The water consumed will help dissipate body heat and aid the bird in body temperature regulation. However, it is very difficult to cool the water significantly when moving the water hundreds of feet down a house.. Electrolytes: During periods of potential heat stress, many producers supplement drinking water with electrolytes. Electrolytes are minerals that can be found in the blood and are important for normal cell function and growth. Electrolytes, as the name implies, help regulate nerve and muscle function by conducting electrical signals from nerves to muscles. Electrolytes are also important for the acid-base balance of the blood and fluid retention. Some of the electrolytes found in blood plasma ...
The skin is the largest organ of the body. The skin and its derivatives (hair, nails, sweat and oil glands) make up the integumentary system. One of the main functions of the skin is protection. It protects the body from external factors such as bacteria, chemicals, and temperature. The skin contains secretions that can kill bacteria and the pigment melanin provides a chemical pigment defense against ultraviolet light that can damage skin cells. Another important function of the skin is body temperature regulation. When the skin is exposed to a cold temperature, the blood vessels in the dermis constrict. This allows the blood which is warm, to bypass the skin. The skin then becomes the temperature of the cold it is exposed to. Body heat is conserved since the blood vessels are not diverting heat to the skin anymore. Among its many functions the skin is an incredible organ always protecting the body from external agents.. ...
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2017 The Latest Womens Fashion Clothes - Womens Clothes Online Shop - Discount At UK Online Store buy clearance Peridot Jacket Jackets and Coats Black Allover Print |MVU]roONeill Outerwear Size Chart Show off your cold weather style in the ONeill® Peridot Jacket. Firewall technology allows for strategic insulation to the places that need it. Zippered underarm ventilation for superior breathability and more efficient body temperature regulation. Articulated seams allow for a fuller range of motion. Connection system
Mt. Adams can be extraordinarily hot once you get high enough. I over packed layers and jackets because I was expecting it, a 12,000 foot snowcap, to be cold and windy. While I could have done without most of my other layers once I got moving, it was good to be prepared. Were anything to happen on the ascent that prevented us from making our one-day summit, the layers could have saved my life. I wore an Icebreaker CoolLite tank with the Arcteryx Atom LT over it for most of the hike. The combination of the two helped keep me cool and dry once in motion, but also warm when I needed it (for example, for a 5am start at 5,600). There were times I unzipped the Atom to get a breeze, but didnt want to take it off - the Arcteryx jacket functioned exactly as I needed it to and provided awesome body temperature regulation (due to thick insulation in the front, back and arms and breathable paneling on the sides). It was the perfect mid-layer for the day. ...
BODY FAT NORMAL PHYSIOLOGICAL FUNCTIONING PROTECTION OF ORGANS FROM BODILY HARM INSULATION AND BODY TEMPERATURE REGULATION ENERGY STORAGE
Thermoregulatory effects of purines and caffeine.: Purines are putative neurotransmitters which appear to be involved in regulating several vegetative functions
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Cincinnati Sub-Zero has been delivering patient temperature management systems to healthcare professionals since 1963; we design with the patient in mind. Our complete line of products include therapeutic heating and cooling therapy units along with a complete line of warming and cooling blankets for body temperature regulation and hyper-hypothermia treatment. ...
I am writing from Lake placid near a cozy fire next to a sound asleep and snoring William. My mom and I decided to get away for the week that the twins had off of school. Even though its very cold in the Adirondack mountains it feels wonderful to be away from the stresses of home and everyday life. Last week William and I met with Dr. Mink (his neurologist) to discuss the past few challenging months. Will has been so much more alert and happy yet still struggles more than usual with his eating skills and body temperature regulation. He is still dipping down to 92 and rarely reaching above 95 degrees F. During our appointment we discussed shunt placement (to relieve fluid pressure in this brain ventricles), g-tube placement, among other concerns. Dr. Mink does not feel that William would benefit from a shunt at this time since he does not know how quickly the fluid in his brain has been collecting. Placing a shunt would also be extremely risky for Will given how much fluid fills his ventricles ...
The HCG diet is actually not new on the scene of diet fads. Its just the one that is the latest on the radar screen. It actually has been approved by the FDA for the treatment of infertility in women, but has wide appeal for those wishing to shed those extra pounds.. The effectiveness of HCG as a diet supplement is its role in "re-setting" the hypothalamus and changing how the body burns fat. There are three types of fat in the body: structural fat, the fat that fills gaps to create protection around organs and bones; reserve fat, used by the body as a sort of nutritional income, as well as for fuel for muscles and body temperature regulation; and "abnormal" fat, which should be available for nutritional reserves, but is actually trapped. HCG unlocked the bodys ability to burn this trapped fat. Many dieters choose to supplement HCG with a 500-calorie diet and feel no hunger pains because their body is living off the calories from the trapped fat.. The health benefits of homeopathic HCG drops ...
It must be mentioned at this stage the importance of breathing through the nose. Although it may seem an obvious truth to many people, it often needs re-stating that: "The nose is for breathing - The mouth is for eating.". Yes, it may be necessary to breathe through the mouth in times of extreme exertion, emergency or nasal restriction, and it is a true sign of good design that we have a backup orifice for air intake. But the mouth is only that. A reserve or emergency apparatus for breathing. The nose is the proper receptor for healthy respiration.. There are very many gross and subtle reasons that the design of the human body was included with the facility of breathing through the nostrils, and in the modern world today, it must be the singular most ignored and abused aspect of human function. Without a proper function of breath through the nostrils, no proper state of physical health can be achieved and maintained. There will not be correct body temperature regulation; there will not be the ...
A neurochemical is a small organic molecule or peptide that participates in neural activity. The science of neurochemistry studies the functions of neurochemicals. Glutamate is the most common neurotransmitter. Most neurons secrete with glutamate or GABA. Glutamate is excitatory, meaning that the release of glutamate by one cell usually causes adjacent cells to fire an action potential. (Note: Glutamate is chemically identical to the MSG commonly used to flavor food.) GABA is an example of an inhibitory neurotransmitter. Monoamine neurotransmitters: Dopamine is a monoamine neurotransmitter. It plays a key role in the functioning of the limbic system, which is involved in emotional function and control. It also is involved in cognitive processes associated with movement, arousal, executive function, body temperature regulation, and pleasure and reward, and other processes. Norepinephrine, also known as noradrenaline, is a monoamine neurotransmitter that is involved in arousal, pain perception, ...
The Performance Womens Tech Tee is made with premium fabric for the best in moisture management and body temperature regulation. 100% polyester fabric transfers sweat away from your skin and dries quickly. Relaxed cut enables complete mobility and reflective accents keep you visible in low light. The Tech Tee is perfect for running, hiking, biking or any type of rigorous activity. Our Womens Tech Tee has many of the same features and benefits of branded tees that retail for $35.
According to Science Daily the body may have more than one clock: Our latest research suggests that a separate but likely related clock resides in the adrenal gland. The adrenal gland is involved in several important body functions, such as body temperature regulation, metabolism, mood, stress response and reproduction. The research also suggests that other…
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Kate Leslie, Daniel I. Sessler, Andrew R. Bjorksten, Makoto Ozaki, Takashi Matsukawa, Marc Schroeder, Sean Lin; Propofol Causes a Dose-dependent Decrease in the Thermoregulatory Threshold for Vasoconstriction but Has Little Effect on Sweating. Anesthesiology 1994;81(2):353-360. Download citation file:. ...
Thermoregulation is the manner in which the body is able to maintain a consistent internal temperature, notwithstanding significant fluctuations in external temperatures caused by the environment. Thermoregulation is a primarily involuntary function, with the controls centered in the hypothalamus, the region of the brain that controls many other important systems, including the production of hormones, the chemical signals generated throughout the body in the endocrine system, as well as the function of the heart. Humans have evolved to function best at an internal temperature that can be maintained at approximately 98.6°F (37°C).. Exercise may be broadly defined as any exertion of the musculoskeletal system that goes beyond the involuntary functions of basic human metabolism, such as eating, breathing, or sleeping; exercise levels will naturally place a correspondingly greater impact on the bodys ability to regulate temperature. The impact of exercise on the thermoregulatory system will also ...
An apparatus for thermal regulation, or temperature control of intravenous fluid. The apparatus includes four subassemblies to control intravenous fluid temperature during rapid time varying fluctuations in fluid flow rates independent of ambient air temperature and initial fluid temperature. The first subassembly is an intravenous infusion subassembly containing a fluid reservoir, flexible tubing and a syringe for injecting fluid into a human. The second subassembly is a disposable heat exchange subassembly containing a wire heat exchanger and temperature and flow sensors. The heat exchanger is fabricated into the flexible tubing of the infusion subassembly. The third subassembly is a controller subassembly including a microprocessor system to control the heat exchange subassembly and power supplies. The fourth subassembly is the power supply subassembly which uses a variable voltage DC power supply to reduce low level 60 Hertz artifact signals that interfere with electronic monitoring systems such as
In this two part series, Dr. Miller discusses the human bodys amazing thermoregulatory system. The bodys ability to regulate its temperature is proof positive of God and Creation ...
Shop at DormCo for our Temperature Regulation Twin XL Sheets. These dorm essentials have Outlast Technology that regulates the temperature around your body for a cooler and more comfortable nights sleep with less tossing and turning.
An introducer sheath for a central venous catheter includes a sheath body and a temperature sensor mounted distally on the body. Either the catheter or sheath has a heat exchange region through which coolant is circulated to effect heat exchange with the body, with the coolant temperature being controlled in response to signals from the temperature sensor. Arterial dialysis heat exchange catheters and jugular bulb heat exchange catheters are also disclosed.
An introducer sheath for a central venous catheter includes a sheath body and a temperature sensor mounted distally on the body. Either the catheter or sheath has a heat exchange region through which coolant is circulated to effect heat exchange with the body, with the coolant temperature being controlled in response to signals from the temperature sensor. Arterial dialysis heat exchange catheters and jugular bulb heat exchange catheters are also disclosed.
Normal Variations of Body Temperature 923 Exchange of Heat with the Environment 923 Conduction 923 Radiation 924 Evaporative Heat Loss 924 Convection 925. Total Heat Exchange with the Environment 925 Physiologic Regulation of Heat Exchange 926. Regulation of Skin Temperature 926 Regulation of Sweat Production 926 Regulation of Heat Production 927 Physiology and Pathophysiology of Responses to Heat and Cold 927. Adaptation to a Hot Environment 928 Adaptation to a Cold Environment 930 Fever 931. Was this article helpful?. ...
This study examined the hypothesis that several days of exhaustive exercise would impair thermoregulatory effector responses to cold exposure, leading to an accentuated core temperature reduction compared with exposure of the same individual to cold in a rested condition. Thirteen men (10 experimental and 3 control) performed a cold-wet walk (CW) for up to 6 h (6 rest-work cycles, each 1 h in duration) in 5 degrees C air on three occasions. One cycle of CW consisted of 10 min of standing in the rain (5.4 cm/h) followed by 45 min of walking (1.34 m/s, 5.4 m/s wind). Clothing was water saturated at the start of each walking period (0.75 clo vs. 1.1 clo when dry). The initial CW trial (day 0) was performed (afternoon) with subjects rested before initiation of exercise-cold exposure. During the next 7 days, exhaustive exercise (aerobic, anaerobic, resistive) was performed for 4 h each morning. Two subsequent CW trials were performed on the afternoon of days 3 and 7, approximately 2.5 h after cessation of
You will probably notice that aphid numbers in cereal crops are on the increase due to the favourable warm conditions that have prevailed recently. Aphids feeding on spring sown crops that are in grain fill stages of development can damage the yield potential, and therefore the numbers present on any crop should be monitored closely
An algorithm was developed to expand the surface air temperature and air humidity to a larger spatial domain, based on the fact that the variation of surface air temperature and air humidity is controlled jointly by the local turbulence and the horizontal advection. This study proposed an algorithm which considers the advective driving force outside the thermal balance system and the turbulent driving force and radiant driving force inside the thermal balance system. The surface air temperature is determined by a combination of the surface observations and the regional land surface temperature observed from a satellite. The average absolute difference of the algorithm is 0.65 degree and 0.31 mb, respectively, for surface air temperature and humidity expansion, which provides a promising approach to downscale the two surface meteorological variables.
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HYPOTHALAMIC TEMPERATURES IN DOG AND MONKEY AND THERMOREGULATORY RESPONSES TO ENVIRONMENTAL FACTORS. TECHN DOCUM REP AMRL-TDR-63-5.:
Making weight is a common practice in many sports, and powerlifting is no exception. However, there are definite health risks associated with dehydration, as well as detriments to performance. Fluid loss of even 1% of body weight is associated with decreased thermoregulatory function, such as increased core body temperature. Further loss of up to 5% of body weight can result in potentially dangerous cardiovascular strain and inability to dissipate heat. If your federation requires you to weigh in the morning of the competition, you should plan on losing no more than 2% of your body weight within 48 hours of weigh-in to ensure a high level of performance. For a lifter who wishes to compete as a 181?er, this means that he or she should weigh no more than 185 pounds in the few days prior to the meet. Some research studies suggest that losing up to 4% of your body weight within 5 hours of competition is acceptable; however these results were accompanied by a high carbohydrate diet. In order to make ...
The aim and object of the invention are to provide an environmentally friendly heat storage with large heat storage capacity, which allows to save the heat gained from solar panels or heat pumps or the like and the same time is capable of improving the efficiency of conventional heating systems. The object is achieved by using a very large-sized, thermally insulated container containing a heat-storing medium. The thermo-insulated heat accumulator is characterized in that a) the heat storage medium contained in the heat accumulator is water and / or another environmentally friendly fluid or substance, b) the storage capacity, i. the capacity of the heat accumulator is dimensioned correspondingly large, c) the heat accumulator inside wholly or partially a heat radiation reflective coating or reflective foil lining, preferably a lining of highly polished aluminum foil, and d) the heat storage facilities for heat supply and heat transfer has.
We demonstrated a simple technique to obtain stable room temperature multiwavelength lasing in an erbium-doped fiber laser by the inhomogeneous loss mechanism. Successful reduction of the cross-gain saturation in erbium-doped fiber was achieved by incorporating a section of highly nonlinear fiber (HNLF) and a narrowband Fabry-Perot filter (FPF) in the laser cavity. More than 70 wavelengths simultaneous lasing were observed with the same frequency space of 25GHz. The laser had a total output power of ∼3.2dBm, a bandwidth of 0.012nm (∼1.5GHz) and a signal-to-spontaneous-noise ratio of ∼44dB. The total output power can be further increased to more than 190mW by moving the output port right after the EDFA.. ©2006 Optical Society of America. Full Article , PDF Article ...
It is very well established (2, 21, 34, 45) that irrespective of core temperature, the rate of whole body and local sweating is determined by the rate of evaporation required for heat balance Ereq and the skin wettedness required for heat balance (i.e., Ereq/Emax). The present data clearly show that this relationship is not altered whatsoever by large differences in V̇o2 peak. Because HI and LO groups in the present study were also matched for BSA, exercise at a fixed heat production of 540 W (FHP trial) also yielded the same heat production per unit surface area (275 W/m2) but distinctly different relative exercise intensities. Skin temperatures were also similar between groups; therefore, the rate of evaporation required for heat balance (Ereq) (HI: 178 ± 20 W/m2 vs. LO: 172 ± 26 W/m2), the maximum evaporation possible (Emax) (HI: 418 ± 47 W/m2 vs. LO: 428 ± 34 W/m2) and subsequent Ereq/Emax values (HI: 0.43 ± 0.04 vs. LO: 0.40 ± 0.05) were almost identical, and no differences in whole ...
Dehydration in athletes alters cardiovascular and thermoregulatory function and may inhibit endurance exercise capacity if fluid loss exceeds 2% of bodyweight (BW). If this level of dehydration cannot
TY - JOUR. T1 - Energetics of lactation in laboratory mice at thermoneutrality. AU - Krol, Elzbieta. AU - Speakman, John Roger. PY - 2001/3/7. Y1 - 2001/3/7. M3 - Article. VL - 15. JO - The FASEB Journal. JF - The FASEB Journal. SN - 0892-6638. IS - 4. ER - ...
Blood Volume Decreases, body attempts to maintain BP stops sweating. Less Effective Cooling Increased Core ... Heat Syncope: Fainting, dizziness, weakness ... – A free PowerPoint PPT presentation (displayed as a Flash slide show) on PowerShow.com - id: 12136d-MTY4Y
Eggs are also perceived as heat inducing! This puts most of us in a dilemma whether to have eggs in hot weather or not. The generation of body heat and maintenance of constant body temperature is a complex phenomenon involving a multitude of chemical reactions. The process of digesting eggs (or any food for that matter) produces heat as a by-product, which is handled efficiently by the thermostat centre in our brain through various heat loss mechanisms. While eating eggs in summer, just remember to include seasonal foods such as melons and cucumbers in your diet to keep the body hydrated and cool.. ...
Duarte A. Analyze your latest actions and behaviors. Researchers found that some individuals with a particular gene variant present less improve in cholesterol and low density Lipoprotein LDL in response to a weight-reduction plan rich in eggs. Assuming you nutrition metabolism and thermoregulation root beer nutritional info protein and fat intakes relatively constant, and solely nutrition metabolism and thermoregulation your carb intake, you might be automatically biking energy as properly. This will ensure that you are able to provide your body with the nutrition that you need. Green vegetables have more alkaline and they ranked high on the chart. I liver nutritional info what I have done can be useful for you because I think success is to be the most useful for others. Enriching their lives and promoting well being and vitamin is the primary aim of Vemma. Most of these changes have occurred because of the dietary related diseases that are common in the United States. Im not towards the FDAs ...
A meta description is an HTML tag in the HTML code of your website, which allows you to customize a section of text that describes the page itself. It plays a role in how your page is seen by search engine crawlers, and how it appears in SERPs
It is very well established (2, 21, 34, 45) that irrespective of core temperature, the rate of whole body and local sweating is determined by the rate of evaporation required for heat balance Ereq and the skin wettedness required for heat balance (i.e., Ereq/Emax). The present data clearly show that this relationship is not altered whatsoever by large differences in V̇o2 peak. Because HI and LO groups in the present study were also matched for BSA, exercise at a fixed heat production of 540 W (FHP trial) also yielded the same heat production per unit surface area (275 W/m2) but distinctly different relative exercise intensities. Skin temperatures were also similar between groups; therefore, the rate of evaporation required for heat balance (Ereq) (HI: 178 ± 20 W/m2 vs. LO: 172 ± 26 W/m2), the maximum evaporation possible (Emax) (HI: 418 ± 47 W/m2 vs. LO: 428 ± 34 W/m2) and subsequent Ereq/Emax values (HI: 0.43 ± 0.04 vs. LO: 0.40 ± 0.05) were almost identical, and no differences in whole ...
The Thermic Effect of Foo **** protein Photo credit tiverylucky The thermic effect of food is a term used to describe the energy that is expended by our bodies after we ingest food. We consume food wh
Heat is transferred to or away from the body through radiation, conduction, convection, and evaporation. Radiation involves the transfer of heat from a body to the environment and from warm objects in the environment, for example, from the sun to a body. Conduction involves the transfer of heat to solid or liquid media in direct contact with the body. Water immersion conducts significant amounts of heat away from the body. This effect facilitates cooling in a swimming pool on a hot summer day or may lead to hypothermia despite moderate ambient temperatures on a rainy day. The amount of heat lost through conduction and radiation depends on the temperature gradient between the skin and its surroundings; cutaneous blood flow; and insulation such as subcutaneous fat, hair, clothing, or fur in lower animals.143 In the respiratory tract, heat is lost by conduction to water vapor or gas. In animals unable to sweat, this represents the primary method of heat loss. The amount of heat lost through the ...
Weve identified a series of compounds that raise or lower critical temperatures in isolated vesicles. Some of these are general anesthetics. We observe a striking relationship between how much treatments lower Tc and anesthetic functions. We are exploring if this is related to the molecular mechanism of general anesthesia. ...
Affiliation:OSAKA SHIN-AI JUNIOPR CPLLEGE,PROFESSOR,生活文化学科,教授, Research Field:家政学, Keywords:rectal temperatures,heart rate,皮膚温,直腸温,thermoregulatory responses,VDT作業,核温,Skin temperatures,halfーsized boots,dry heat loss, # of Research Projects:4, # of Research Products:0
... Desert organisms experience temperature extremes. Yet the temperature of their body affects their life functions -- too hot and the proteins in their body breakdown (eventually leading to death); too cold and their body functions slow down. Thus plants and animals have various strategies to regulate their body temperature for optimum performance.. Concepts: ...
Why is thermal regulation essential to survival? Thermoregulation is a consistent need of the human body. Our bodies have built-in mechanisms to generate heat w
CHO - 10 to 25% of the metabolizable energy of the diet. 3. Calculate Approximate Caloric Needs. Nutritional support provides substrates for gluconeogenesis and protein synthesis and provides the energy needed to meet the additional demands of host defense, wound repair, and cell division and growth. An estimate of the animals nutrient requirements is needed to determine the minimum amount of food necessary to sustain critical physiologic processes.. Accurate, direct measurements of energy expenditure in sick dogs and cats are not available. Despite the paucity of data on energy requirements of sick animals, opinion exists that the requirements of critically ill animals are less than normal maintenance amounts, but slightly greater than RER. The RER is the patients energy requirement at rest in a thermoneutral environment and in a post-absorptive state. The veterinary literature is rife with reports documenting various values or factors for altering initial calculations to determine the ...
Alpinestars Thermal Tech Top, Alpinestars Thermal Tech Bottom and Alpinestars Thermal Tech Socks are part of Alpinestars range of base layer underwear developed for layering purposes to provide core temperature regulation and comfort for all types of riding conditions. The Warm Tack base fabric used for both the top and bottoms is Nano treated to increase circulation of the capillaries to promote warmth. The fabric is also treated to wick away moisture and keep the body comfortable. The compression fit reduces muscle fatigue in the upper and lower body, increasing riding comfort. Brought to you by McCoy Motorsports.. ...
The discovery could spur a new area of Alzheimers disease research, say the scientists, who found a new pathway of neuronal loss in the condition.
Coldgear Mock Turtleneck… Coldgear moisture transport and core temperature regulation, delivered in a compression Are compatible to keep you going strong as the mercury drops. Double-sided Coldgear technology starts on the soft inner layer, channeling moisture to the outer layer, where rapid evaporation takes over. You stay dryer, warmer, longer. State Color and Size. Order ONLINE Lately! Please Note: Brown color would possibly vary somewhat from photo. AVAILABLE SEPARATELY: Coldgear Mock Turtleneck in Hardwoods Green - word search in our Store for Coldgear. Coldgear Mock ...
When a child has an very high fever from an infection, the body temperature rises to the point where the childs temperature regulation mechanism cant cope. At this point, the child convulses. The convulsions only lasts a few minutes, and in general, they have no lasting effect on the child ...
Stillwell Base Top:. The Long Sleeve Stillwell Base Top is made with BioZone™ technology for optimal temperature regulation and comfort in unpredictable conditions. Panels in key areas are vented and insulated so heat stays close in the cold and is allowed to escape when the outside temperature increases. Stretch nylon fabric and compression zones deliver a snug, supportive fit, and O Hydrolix™ technology reduces the effects of sweat. A seamless construction increases durability and decreases irritation in the Long Sleeve Stillwell Base Top, and essential base layer for the high-performance athlete.. Stillwell Base Pant:. The Stillwell Base Pants use BioZone™ technology to deliver moisture management, warmth and comfort to cold-weather athletes. A lockdown, compression fit supports the muscle groups most important for maximum performance during intense competition. Breathable stretch fabric features seamless construction for a comfortable fit that moves with you on the mountain or ...
Reagan went to be a little more easily last night but she woke back up early and then wasnt going back to sleep! Finally around 5:45am (before I went for my run), I moved her to her chair. She was pretty vocal/needy so I was worried about her during my run and even cut it a little short. She was OK though and I even had time for a much needed shower when I got home. She has still been pretty high maintenance/vocal today...especially this morning. She had speech and we didnt even attempt to get her out of her tomato chair. She did OK though but was really vocal any time we talked. That was her only therapy today. We spent the morning upstairs but eventually moved downstairs. This afternoon her hands and feet are still cold and clammy and shes sweating her back wet...the temperature regulation issues are definitely back. She spent most of the night rolling around on the floor. Tonight I held her and she was tired and trying to fall asleep but her body was just not cooperating...she kept popping ...
climalite® fabric pulls sweat away from the skin to the outer fabric face for quick evaporation, enhancing the body`s natural temperature regulation. Raglan sleeve construction with a very soft piqué fabric in tonal color. Shell fabric collar with button placket. Contrast color inserts at the sleeve hems for an iconic look. ITF-compliant 3-Stripes.
Every living body relies on water for a number of critical processes such as temperature regulation, digestion and metabolism. Water retention, however, can be the bane of your existence, especially ...
Circulation in biological vascular systems enables the distribution of cells, hormones, oxygen, and nutrients, the removal of carbon dioxide and waste, and the maintenance of homeostasis. Fluid flow in these natural vascular systems is typically driven by a pressure gradient induced by the pumping action of a heart, even in primitive invertebrates such as earthworms [1]. In contrast, multi-cellular animals without circulatory systems (e.g. flatworms and jellyfish) rely on diffusion to transport nutrients and, as a result, are limited in size and complexity [2].. Synthetic vascularized materials have been created by a variety of manufacturing techniques with applications that include temperature regulation, damage-sensing and self-healing [3,4]. Self-healing materials possess the ability to heal in response to damage wherever and whenever it occurs in the material [5]. In polymers, self-healing has been demonstrated by three conceptual approaches: capsule-based healing systems, vascular healing ...
Also known as the mesencephalon, the midbrain is a portion of the nervous system largely responsible for vision, hearing, motor control, sleep/wake, alertness, and temperature regulation. It is located just below the cerebrum and above the hindbrain, connecting the two portions. As the central production center of dopamine, it plays a major role in human functions. It is also found to some degree in even the most rudimentary and ancient vertebrates. It is considered the uppermost section of the brain stem. ...
I know, Ive been horrible about posting! Im on the day behind schedule right now! Reagan has been OK. Getting more tense, thats for sure. Today shes had her hands in her mouth A LOT! Almost to the point of gagging herself! Temperature regulation is a bit off now, hands and feet have been clammy here and there, and shes still very congested. Shes also been sensitive to talking! There have been several instances where she almost started crying because we were talking! Not much of a fan of her brothers fussing either, but who is?!?! She had PT and speech today and did well with both. Tonight she was pretty tense and getting a little vocal/agitated but loosened up with clonidine and fell asleep! Hoping for a good nights sleep for my stuffy girl ...
Have you been checked for congestive heart failure???? No? What could that have to do with it? They listened to my heart several times but didnt find any disabilities, so didnt do any more research. (even though I went to the doctor when I was 16 because I got tired easily and it started with my heart -> beating very fast during and after physicial instrinuation, especially right after the moment I stopped instrinuating myself.) All the symptoms looked like a bad condition: excessive sweating, *****d up temperature regulation, heart beating (sometimes my heart seemed/seems to get out of place and it feels like it stops, but the doctor said it was normal for my age), but of course they didnt find anything...And trying to improve my condition didnt help, only causing more tiredness. But actually, I dont see the link with my nose. : ...
Patient experience and side effects for APAP. This product is used to reduce pain and fever. It is believed to work by acting on pain and temperature regulation centers in the brain.
... -   Have you ever learned that some animals are “warm-blooded” while others are “cold-blooded”? Warm-blooded animals are those who are able to keep their body temperature re...
Gallup describes the findings as follows:. This provides additional support for the view that the mechanisms controlling the expression of yawning are involved in thermoregulatory physiology. Despite numerous theories posited in the past few decades, very little experimental research has been done to uncover the biological function of yawning, and there is still no consensus about its purpose among the dozen or so researchers studying the topic today.. "Enter the brain cooling, or thermoregulatory, hypothesis, which proposes that yawning is triggered by increases in brain temperature, and that the physiological consequences of a yawn act to promote brain cooling. I participated in a study [published in Frontiers in Evolutionary Neuroscience in September 2010] that confirmed this dynamic after we observed changes in the brain temperature of rats before and after the animals yawned. The cooling effect of yawning is thought to result from enhanced blood flow to the brain caused by stretching of the ...
The thermal field of a person exposed to artificial heat is investigated. A variation in the blood flow as the temperature inside the body increases is cal
Barnitz said the biggest benefit of STOCKOSORB® is less labor needed once the roots get established in the growing medium.. "We dont have to water as frequently," he said. "Therefore, we dont run the risk of overwatering, reducing the risk of root and foliar diseases. The plants run dryer so there is more air in the growing mix so that the root system is stronger.. "We dont have to water as often so were not overwatering. Until we start getting into the bright, warm conditions of mid-spring, anything we can do to reduce the amount of pressure on the plants is to our advantage.". Barnitz said another benefit of using STOCKOSORB® occurs when plants arrive at their next stop on the way to consumers.. "Whether its at our wholesale facilities or our retail locations or our independent garden center customers, STOCKOSORB® provides us with a longer time between watering before the plants start flagging or wilting," he said. "Our growers have found that even with the top of the soil looking ...
The average sea ice extent for the month of October was the lowest on record for that month, averaging only 5.66 million square kilometers (2.19 million square miles), beating the previous record-holder, October 2012, by nearly a quarter-million square kilometers. This was due to abnormally warm conditions across the Arcticread more. ...
When your Jeep spins lazily off the mountain road and slams backward into a snowbank, you dont worry immediately about the cold. Your first thought is that youve just dented your bumper. Your second is that youve failed to bring a shovel. Your third is that youll be late for dinner. ...
One of the most popular ways to determine if a thermal profile of an electronic assembly is within specification is to consider the limits placed on four measurements or parameters: Initial Ramp Slope, Soak time, Time Above Liquidus and Peak temperature. Keep these four parameters within the specified (solder paste) limits and you can be assured that you are soldering the parts without damaging them.
Designed to provide 5-10 hours of cooling relief per soaking. It cools the body and assists with heat stress prevention by promoting the bodys thermoregulation.
The global thermic fluids market is expected to reach USD 3.45 billion by 2020, according to a new study by Grand View Research, Inc
This interactive activity explores heat exchange between the human circulatory system and the environment and illustrates how your body adapts its blood flow under different conditions
ANSWER: Dogs cuddle to get warmth, to bond, and because it releases chemicals that make them feel good. Cuddling goes back to earlier times when dogs needed body heat to keep warm. They kept warm with each other and with other humans. This proves that dogs cuddling is not only beneficial for the
TY - JOUR. T1 - The thermoregulatory effects of noradrenaline, serotonin and carbachol injected into the rat spinal subarachnoid space. AU - Lopachin, Richard M.. AU - Rudy, T. A.. PY - 1982/12/1. Y1 - 1982/12/1. N2 - 1. We have examined the effects on thermoregulation in the rat of noradrenaline bitartrate (NA), 5‐hydroxytryptamine hydrochloride (5‐HT) and carbamylcholine chloride (CCh) injected into the lumbar spinal subarachnoid space via a chronic indwelling catheter. 2. Intrathecal injections of the monoamines and CCh reproducibly affected thermoregulation, whereas injections of control solutions had no effect. 3. Intrathecal injections of NA (0·01‐0·30 μmol) produced a dose‐dependent hypothermia associated with a decrease in tail skin vasomotor tone. Shivering activity was not depressed during the hypothermia and sometimes increased. Intrathecal administration of the α‐adrenergic agonist clonidine (0·0175‐0·070 μmol) elicited changes in Tc and Tsk similar to those ...
4th International Meeting on
Physiology and Pharmacology of Temperature Regulation


Welcome to Brazil!

It is our great pleasure and honor to invite you to participate in the 4th International Symposium on Physiology and Pharmacology of Temperature Regulation 2012 (PPTR2012) to be held in Buzios, RJ, Brazil, from March 22 (Thu) to 25 (Sun), 2012. The PPTR 2012 intends to give you the unique opportunity to review and discuss topics in the field of thermoregulation from the aspects of physiology, pharmacology and clinical medicine. The PPTR2012 aims to provide a learning environment where delegates can have access to thought leaders in the field of scientific and clinical research, in a friendly atmosphere and to return home enthusiastically motivated with an improved understanding of the science of thermoregulation and fully updated on the clinical management of patients with body temperature alterations. This meeting also encourages students to
The skin is the largest organ of the body. The skin and its derivatives (hair, nails, sweat and oil glands) make up the integumentary system. One of the main functions of the skin is protection. It protects the body from external factors such as bacteria, chemicals, and temperature. The skin contains secretions that can kill bacteria and the pigment melanin provides a chemical pigment defense against ultraviolet light that can damage skin cells. Another important function of the skin is body temperature regulation. When the skin is exposed to a cold temperature, the blood vessels in the dermis constrict. This allows the blood which is warm, to bypass the skin. The skin then becomes the temperature of the cold it is exposed to. Body heat is conserved since the blood vessels are not diverting heat to the skin anymore. Among its many functions the skin is an incredible organ always protecting the body from external agents.. ...
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The Puerto Rican lizard Anolis cristatellus behaviorally regulates body temperature in an open habitat but passively tolerates lower and more variable temperatures in an adjacent forest where basking sites are few and distant. Thermoregulation may be adaptive only when costs resulting from associated losses of time and energy are low ...
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Mammals have evolved a range of behavioural and neurological mechanisms that coordinate cycles of thermoregulation and sleep. Whether diurnal or nocturnal, sleep onset and a reduction in core temperature occur together. Non-rapid eye movement (NREM) sleep episodes are also accompanied by core and brain cooling. Thermoregulatory behaviours, like nest building and curling up, accompany this circadian temperature decline in preparation for sleeping. This could be a matter of simply comfort as animals seek warmth to compensate for lower temperatures. However, in both humans and other mammals, direct skin warming can shorten sleep-latency and promote NREM sleep. We discuss the evidence that body cooling and sleep are more fundamentally connected and that thermoregulatory behaviours, prior to sleep, form warm microclimates that accelerate NREM directly through neuronal circuits. Paradoxically, this warmth might also induce vasodilation and body cooling. In this way, warmth seeking and nesting behaviour might
In the design of spacecraft, heat transfer becomes a criterion of operation to maintain structural and equipment integrity over long periods of time. The spacecraft thermal balance between cold space and solar, planetary, and equipment heat sources is the means by which the desired range of equipment and structural temperatures are obtained. With the total spacecraft balance set, subsystem and component temperatures can be analyzed for their corresponding thermal requirements. This section provides the means by which first-cut approximations of spacecraft surface, structure, and equipment temperatures may be made, using the curves of planetary and solar heat flux in conjunction with the desired coating radiative properties. Once the coating properties have been determined, the material to provide these requirements may be selected from the extensive thermal radiative properties tables and curves. These can then be cross checked to determine the degradation effects of space that may cause ...
Manufacturer Supply Memory Foam Pillow Pressure Relief And Temperature Regulation Cool Visco Gel Pillow, US $ 8.12 - 22.01 / Piece, Polyester / Cotton, Memory Foam, Adults.Source from Shenzhen Lianda Technology Industrial Co., Ltd. on Alibaba.com.
Introduction. Australian Ectotherms & Endotherms What are Ectotherms and endotherms? Most animals are Ectotherms. Ectotherms are animals that cannot maintain a constant body temperature which means that their metabolism rates are affected by the exterior temperature of the environment. Endotherms are animals that can maintain a constant body temperature. So, this means that endotherms can control the rate of heat exchange by: panting; sweating; by using their physical characteristics-fur, hair, feathers or body fat for insulation; or by migration, burrowing, etc (which relates to the numerous behavioural characteristics used by these animals to control heat exchange). Most mammals and birds are endotherms. Examples of ectotherms Desert Lizard (from central Australia): Desert lizards regulate their body temperatures by trying to burrow or seek shelter under rocks when trying to avoid high temperatures. Some desert lizards can alter the colour on their back in order to reflect heat or to absorb ...
Recent data obtained from Rana temporaria sartorius muscles during an isometric tetanus indicate that the time-course of phosphocreatine (PC) splitting cannot account for the total energy (heat + work) liberation (Gilbert et al. 1971. J. Physiol. (Lond.) 218:)63). As this conclusion is important to an understanding of the chemical energetics of contraction, similar experments were performed on unpoisoned, oxygenated Rana pipiens sartorius muscles. The muscles were tetanized (isometrically) at 0 degrees C for 0.6, 1, or 5 s; metabolism was rapidly arrested by freezing the muscles with a specially designed hammer apparatus, and the frozen muscles were chemically analyzed. Comparable myothermal measurments were made on frogs from the same batch. Results of these experiments indicate: (a) The energy liberation parallels the PC and ATP breakdown with a proportionality constant of 10.7 kcal/mol; (b) comparably designed experiments with sartorius muscles of R. temporaria revealed that the ratio of ...
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Alzheimers disease (AD) is characterised, not only by cognitive deficits and neuropathological changes, but also by several non-cognitive behavioural symptoms that can lead to a poorer quality of life. Circadian disturbances in core body temperature and physical activity are reported in AD patients, although the cause and consequences of these changes are unknown. We therefore characterised circadian patterns of body temperature and activity in male triple transgenic AD mice (3xTgAD) and non-transgenic (Non-Tg) control mice by remote radiotelemetry. At 4 months of age daily temperature rhythms were phase advanced and by 6 months of age an increase in mean core body temperature and amplitude of temperature rhythms were observed in 3xTgAD mice. No differences in daily activity rhythms were seen in 4-9-month-old 3xTgAD mice, but by 10 months of age an increase in mean daily activity and the amplitude of activity profiles for 3xTgAD mice were detected. At all ages (4-10 months), 3xTgAD mice ...
body temperature regulation. *emotion and mood, potentially including aggression. *feeding and energy homeostasis ... If the cell body is normally in an inhibited state, the only way to generate an action potential at the axon hillock is to ... If the message is to be stopped, it is best stopped by applying inhibition on the cell body, close to the axon hillock where ... It is in most cases pragmatically impossible to even measure levels of neurotransmitters in a brain or body at any distinct ...
regulation of body temperature. *regulation of food intake, through two centers: *The feeding center or hunger center is ... where LBM is the lean body mass in kg.. According to this formula, if the woman in the example has a body fat percentage of 30 ... Some of those processes are breathing, blood circulation, controlling body temperature, cell growth, brain and nerve function, ... Unlike fat the body has no storage deposits of protein. All of it is contained in the body as important parts of tissues, blood ...
Parallel pathways in the preoptic area are involved in regulation of body temperature and fever response. One pathway ... The neural activation mechanisms involved in the regulation of body temperature are largely undefined. It is known that ... Nakamura, K. (2011). Central circuitries for body temperature regulation and fever. American Journal of Physiology. Regulatory ... Thermoreceptors in the skin detect temperature in the environment relative to body temperature. These afferent neurons project ...
Hainsworth, F.R.; Wolf, L.L. (1970). "Regulation of oxygen consumption and body temperature during torpor in a hummingbird, ... such animals maintain normal body temperature and activity levels, but their metabolic rate and body temperature drops during a ... staying just over ambient temperature rather than at normal operating temperature. This reduction in body temperature and ... small mammals and birds maintaining an internal body temperature spend up to 100 times more energy in low ambient temperatures ...
Temperature regulation. Spermatogenesis is enhanced at temperatures slightly less than core body temperature.[5] The ... Their testes function best at temperatures lower than their core body temperature. Their testes are located outside of the body ... The early mammals had lower body temperatures and thus their testes worked efficiently within their body. However it is argued ... two degrees below the body temperature of 37 degrees Celsius (98.6 degrees Fahrenheit). Higher temperatures affect ...
In addition, body temperature regulation is compromised.[citation needed]. Environmental hazardsEdit. See also: Marine mammals ... They are warm-blooded, i.e., they hold a nearly constant body temperature. ... "Electronic Code of Federal Regulation. 1. Retrieved 6 September 2015.. *^ Whiting, Candace Calloway. In the Wake of Blackfish ... The body is wrapped in a thick layer of fat, known as blubber, used for thermal insulation and gives cetaceans their smooth, ...
At ambient temperatures below their body temperatures (thermal neutral zone (TNZ)), common ostriches decrease body surface ... ISBN 0-85199-350-8. Schmidt-Nielsen, K.; Kanwish, J. Lawsiewski R. C. (1969). "Temperature Regulation and Respiration In The ... causing the body temperature to increase further. When the body heat is allowed to increase the temperature gradient between ... If the ambient temperature is lower than the thermo-neutral zone, heat is produced to maintain body temperature. So, the ...
The surface area of an organism is important in several considerations, such as regulation of body temperature and digestion. ... Elephants have large ears, allowing them to regulate their own body temperature. In other instances, animals will need to ...
... in excess of that required for regulation of body temperature. Although primarily a physical burden, hyperhidrosis can ... Hyperhidrosis can either be generalized, or localized to specific parts of the body. Hands, feet, armpits, groin, and the ... Excessive sweating affecting only one side of the body is more suggestive of secondary hyperhidrosis and further investigation ... Excessive sweating involving the whole body is termed generalized hyperhidrosis or secondary hyperhidrosis. It is usually the ...
"Regulation of oxygen consumption and body temperature during torpor in a hummingbird, Eulampis jugularis". Science 168 (3929): ... "Metabolic rate and body temperature reduction during hibernation and daily torpor". Annu. Rev. Physiol. (66): 239-274. doi: ... Torpor is a physiological state of the body. It occurs in some small warm-blooded animals when food is scarce. ...
"Regulation of body temperature by some Mesozoic marine reptiles". Science. 328 (5984): 1379-1382. doi:10.1126/science.1187443. ... maintain a high temperature in their body core. This argument does not cover basal forms with a more eel-like body and ... Additional direct proof for a high metabolism is the isotopes of oxygen ratio in the teeth, which indicates a body temperature ... In the early 1880s, the first body outlines of ichthyosaurs were discovered. In 1881, Richard Owen reported ichthyosaur body ...
Central administration of orexin-A strongly promotes wakefulness, increases body temperature and locomotion, and elicits a ... Tsuneki H, Wada T, Sasaoka T (March 2010). "Role of orexin in the regulation of glucose homeostasis". Acta Physiologica. 198 (3 ... Ohno K, Sakurai T (January 2008). "Orexin neuronal circuitry: role in the regulation of sleep and wakefulness". Frontiers in ... The orexin system may thus be more important in the regulation of energy expenditure than food intake. In fact, orexin- ...
Temperature regulation[edit]. Carolina chickadee on a branch. Carolina chickadees are able to lower their body temperatures to ...
"Regulation of body temperature in the white shark, Carcharodon carcharias". Journal of Comparative Physiology. B Biochemical ... Most fish are ectothermic ("cold-blooded"), allowing their body temperatures to vary as ambient temperatures change, though ... The streamlined body of the fish decreases the amount of friction from the water. Since body tissue is denser than water, fish ... Certain species of fish maintain elevated body temperatures. Endothermic teleosts (bony fish) are all in the suborder ...
"Regulation of body temperature in the white shark, Carcharodon carcharias". Journal of Comparative Physiology. B Biochemical ... Most fish are ectothermic ("cold-blooded"), allowing their body temperatures to vary as ambient temperatures change, though ... Carey, F.G.; Lawson, K.D. (1 February 1973). "Temperature regulation in free-swimming bluefin tuna". Comparative Biochemistry ... Fish are abundant in most bodies of water. They can be found in nearly all aquatic environments, from high mountain streams (e. ...
... that crewmembers chronically exposed to the microgravity environment may develop impaired body temperature regulation during ... Both crewmembers exhibited a more rapid increase in body core temperature during the shorter postflight exercise session than ... Fortney, SM; Mikhaylov, V; Lee, SM; Kobzev, Y; Gonzalez, RR; Greenleaf, JE (February 1998). "Body temperature and ... Manifestations of altered thermoregulation include increased heart rate and body temperature during exercise, decreased work ...
These nerves control 'automatic' processes, like heart rate and body temperature. They can be damaged by diabetes, just like ' ... Balance, intestinal control, blood pressure regulation, sweating, breathing rate, ... are all controlled or influenced by the ... However, either their bodies do not produce enough insulin or their body cells are resistant to insulin (see Insulin Resistance ... It is also the chief control mechanism for body metabolism. Insulin allergy This occurs when a person's body has an allergic or ...
For example, 'body temperature regulation' is used in place of 'thermoregulation'. Thus the easiest way to find and use LCSH is ...
The function of TRPV1 is detection and regulation of body temperature. In addition, TRPV1 provides a sensation of scalding heat ... The role of TRPV1 in the regulation of body temperature has emerged in the last few years. Based on a number of TRPV-selective ... function of TRPV1 is body temperature maintenance Experiments have shown that TRPV1 blockade increases body temperature in ... "The vanilloid receptor TRPV1 is tonically activated in vivo and involved in body temperature regulation". J. Neurosci. 27 (13 ...
... which helps them with body temperature regulation.[1][2] A grayling goes through four stages in its life cycle. The eggs hatch ... This can raise body temperatures by up to 3 degrees Celsius. Contrarily, at high temperatures, the male grayling exposes as ... This may be due to their ability to regulate their body temperature using the sun. When the temperature gets too cold, the ... This process can lower body temperatures by up to 2.5 degrees Celsius. At intermediate temperatures, the male grayling is often ...
At ambient temperatures below their body temperatures (thermal neutral zone (TNZ)), common ostriches decrease body surface ... "Temperature Regulation and Respiration In The Ostrich" (PDF). The Condor. 71 (4): 341-352. doi:10.2307/1365733. JSTOR 1365733. ... causing the body temperature to increase further.[62] When the body heat is allowed to increase the temperature gradient ... If the ambient temperature is lower than the thermo-neutral zone, heat is produced to maintain body temperature.[61] So, the ...
A similar hypothesis is that yawning is used for regulation of body temperature. Similarly Guttmann and Dopart (2011) found ... Another notion states that yawning is the body's way of controlling brain temperature. In 2007, researchers including a ... Yawning is sometimes accompanied, both in humans and animals, by an instinctive act of stretching several parts of the body, ... Yawning has multiple possible functions, and may occur when the body perceives the benefits. In humans, the yawn contagion is ...
Sweat, a physiological aid to body temperature regulation, is secreted by eccrine glands. Sebaceous glands secrete the skin ... Some skin secretions are associated with body hair. Skin secretions originate from glands that in dermal layer of the epidermis ...
Homeostasis is needed for the internal regulation of body temperature and ph levels; the process allows fish to travel from ... 0.7 mm and could take 2 to 14 days depending on water temperature, and the salmon louse attaches itself to the fish. Stages ... High levels of salmon lice infections results in a weaker ion regulation system. The ability to activate an inflammatory ... The intensity of inflammatory response controls how fast the parasites are rejected from the body. Intensity is determined by ...
... passive body-temperature regulation based on work, and evaporative cooling from regurgitated honey-sac contents. Body ... The honey bee needs an internal body temperature of 35 °C (95 °F) to fly; this temperature is maintained in the nest to develop ... 387-388 Bernd Heinrich (1996). "How the honey bee regulates its body temperature". Bee World. 77: 130-137. Bernd Heinrich (1979 ... The temperature on the periphery of the cluster varies with outside air temperature, and the winter cluster's internal ...
Barnes, Brian M. (1989). "Freeze Avoidance in a Mammal: Body Temperatures Below 0 °C in an Arctic Hibernator". Science. 244 ( ... Little, TJ; Horowitz, M; Feinle-Bisset, C. "Role of cholecystokinin in appetite control and body weight regulation". Obesity ... Geiser, Fritz (2004). "Metabolic Rate and Body Temperature Reduction During Hibernation and Daily Torpor". Annu. Rev. Physiol. ... To maintain a high constant body temperature is energy expensive - mammals therefore need a nutritious and plentiful diet. ...
body temperature regulation. [ Back to Messages ] Message. Posted by andy parker on November 23, 2000 at 07:26:11:. Dear all,. ... my name is andy and I have a problem regarding my bodys temperature regulation. A couple of years ago I developed a problem ... and the slightest lowering of room temperature would make my hands and feet extremely cold (and painful).My doctor says my ... is malfunctioning and reacts wildly to slight variations in temperature (my "comfort" zone is around 18-24 deg C).Has anybody ...
New discoveries about the mechanism responsible for heat generation in the body related to fat tissue oppose classical views in ... Body Temperature, heat generation , Fat Tissue, Metabolic Disorders, Obesity, * Liqing Yu, Hyunsu Shin, brown adipose tissue, ... "The lipid droplet lipolysis in brown fat is not essential for mammals to defend the body temperature in the cold. Instead, it ... To be cold sensitive means that if an animals body temperature drops to a critical point, the animal cannot sustain the normal ...
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... by Jeff Miller, Ph.D.. In this two part series, Dr. Miller ... The bodys ability to regulate its temperature is proof positive of God and Creation.. Part one investigates thermoregulatory ... discusses the human bodys amazing thermoregulatory system. ...
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... as a modulator of body temperature regulation under uncompensable heat stress. Eight well-trained male cyclists completed (work ... as a modulator of body temperature regulation under uncompensable heat stress. Eight well-trained male cyclists completed (work ... However, core body temperature (FI 39.4 ± 0.3°C, SP 39.1 ± 0.4°C), blood lactate (FI 2.9 ± 0.8 mmol/L, SP 2.3 ± 0.7 mmol/L), ... the rate of rise in core body temperature was higher in FI (0.108 ± 0.020°C/min) than in SP (0.082 ± 0.016°C/min). ...
Body Temperature - drug effects Body Temperature Regulation - drug effects Caffeine - pharmacology Drug Interactions English ... Body Temperature - drug effects Body Temperature Regulation - drug effects Epinephrine - blood - urine Ethanol - administration ... Body Temperature Regulation Canada Circadian Rhythm Diving Linear Models Swimming Telemetry Temperature Turtles - physiology ... Body Temperature Regulation Child Circadian Rhythm Heart rate Humans Moscow Nervous System Physiological Phenomena Seasons ...
Effects of Body Temperature on Neural Activity in the Hippocampus: Regulation of Resting Membrane Potentials by Transient ... Effects of Body Temperature on Neural Activity in the Hippocampus: Regulation of Resting Membrane Potentials by Transient ... Effects of Body Temperature on Neural Activity in the Hippocampus: Regulation of Resting Membrane Potentials by Transient ... Effects of Body Temperature on Neural Activity in the Hippocampus: Regulation of Resting Membrane Potentials by Transient ...
... and Body Temperature Regulation - Review Questions - Page 952 26 including work step by step written by community members like ... and Body Temperature Regulation - Review Questions * Nutrition, Metabolism, and Body Temperature Regulation - Review Questions ... and Body Temperature Regulation - Review Questions - Page 952: 27 Previous Answer Chapter 24 - Nutrition, Metabolism, and Body ... Chapter 24 - Nutrition, Metabolism, and Body Temperature Regulation - Review Questions - Page 952: 26. Answer. Core is organs ...
... to better understand the genetic basis of body temperature regulation during extreme temperatures. Crossbred steers and heifers ... curve using hourly body temperature observations for five days and during the maximal stress cycle to where body temperature ... The objectives of the current study were to model the impact of myostatin genotype (MG) on body temperature during heat and ... with 0 copy and 2 copy animals deviating the greatest from the average body temperature of 38.6 °C during summer and winter ...
Regulation Of Body Temperature Flashcards Preview Human Biology Specifics , Regulation Of Body Temperature , Flashcards ... The human body remains at a relatively constant temperature of 36.8C ... A mechanism in which air warmed by your body becomes more dense, and is then pushed away by cooler air coming to take its place ... Metabolic rate in KJ is the amount of energy lost per hour per metre square of the body surface. What is metabolic rate ...
Study Regulation of Body Temperature flashcards from Kyle Gabrick ... Body temperature increases to a point of tissue damage. Usually ... Regulation of Body Temperature Flashcards Preview Pathology Kyle , Regulation of Body Temperature , Flashcards ... What is the main component of the brain that regulates body temperature ? ... The bodys response to increased temp included vasodialation and sweating. Excessive sweating decreases ECF volume, decreases ...
Chapter 24: Nutrition, Metabolism, and Body Temperature Regulation I Introduction A. Defining health 1. Earlier times: ... Chapter 24: Nutrition, Metabolism, and Body Temperature Regulation I Introduction A. Defining health 1. Earlier times: ... The unit of measurement is the calorie, defined as the amount of energy required to raise the temperature of one gram of water ... 4 ways to transfer heat from body surroundings 1 Conduction Heat exchange as a ...
C from a neutral temperature. Body core and skin temperature were recorded from multiple sites, while sweat rate were ... affecting sweat rate at all body surfaces equivalently. Afferent input from the head dominated the regulation of thermal ... Sweat rate was found to increase both at the site of local temperature change and at the other seven sites. Between-site ... Eight male subjects were exposed to two environments during which the local skin temperature (T^ki) four skin regions (head, ...
Answer to ch type of skin gland is very important in body temperature regulation? cells that produce new bone matrix are? which ... ol,,li,which type of skin gland is very important in body temperature regulation?. ,/li,,li,cells that produce new bone matrix ... Be... The Lamp of the Body 33 No one lights a lamp and puts it in a place where... In the context of cell biology, what do we ...
Furthermore, birds let their body temperature increase in direct relation to ambient temperatures, increasing body temperature ... birds are willing to let their body temperatures increase by up to 5°C above normal temperatures. This flexibility in body ... Body temperature regulation in hot environments. Research output: Contribution to journal › Article ... To alleviate these costs, birds in captivity let their body temperature increase, thereby entering a state of hyperthermia. ...
Anesthetics and Body Temperature Regulation You will receive an email whenever this article is corrected, updated, or cited in ... Anesthetics and Body Temperature Regulation. Anesthesiology 6 1988, Vol.68, 833-835. doi: ...
... Temperature regulation is a great example of how this homeostatic reflex works. If you go to ... F rise in basal body temperature. The basal body temperature is the lowest body temperature during sleep. A woman could take ... All the control center does is it COMPARES the actual body temperature with the desired body temperature. If they match, the ... variations in body temperature. Normally your body temp is highest at the end of your work day, about 7PM. Your body ...
... then scroll down to know the causes of abnormally low or high body temperature. Low body temperature is as serious as fever. ... If you are suffering from body temperature problems, ... Those who have body temperature regulation problems may feel ... The normal body temperature range for oral measurement is 98.2±1.3 °F or 36.8±0.7 °C. High body temperature is known as ... and body temperature are the vital signs which help assess the health of an individual. Temperature regulation problems can be ...
The video course Body Temperature Regulation will boost your knowledge. Study for your classes, USMLE, MCAT or MBBS. Learn ... Body Temperature Regulation by Thad Wilson, PhD. (1) Deepen your knowledge of the physiology of the human bodys temperature ... Your Educators of course Body Temperature Regulation. Thad Wilson, PhD. Thad Wilson is a Professor of Physiology and has been ... and its regulation. Prof. Thad Wilson will provide you with the most important and exam-relevant facts about body temperature ...
... element that you can ingest into the human body due its multipurpose properties especially with respect to body temperature. ... Water then actually has a dual purpose when maintaining body temperature.. The normal temperature in the body is considered to ... The variability of human body temperature depends on many aspects. Normal body temperature in humans, also referred to as ... bodytemperaturewatervariabilityhotcoldregulationenvironmenthealthhydrationdehydrationorgansextremitiesweathersummerwinter ...
However, it turns out that individuals are able to use body temperature regulation in a seemingly adaptive way. Resident birds ... Start › Research › Research groups › Life History and Functional Ecology › Research projects › Body temperature regulation ... Also in hot environments, birds are not strict in their thermoregulation but this time let their body temperature increase ... Birds, being homeothermic, are expected to keep their body temperatures within rather narrow limits. ...
July 14, 2019 Incoherent ramblings 3 comments body temperature regulation, cold shock, Scientology, Wim Hof ... At that pool temperature, without the ablity to self-regulate my body heat, I find that I dont warm up, even after a number of ... For anybody that finds the idea of body self regulation interesting, here is some analysis of the Wim Hof method on the medlife ... Due to the indoctrination of my youth(*), I recognize that Im predisposed to the idea that the mind can control the body, so ...
Body Temperature Regulation. Disruption of the bodys ability to reduce core body temperature has been attributed to ... Problems controlling your body temperature so that you feel too warm. See "What should I avoid while receiving ARISTADA?" ... Store at room temperature 20°C to 25°C (68°F to 77°F) with excursions permitted between 15°C and 30°C (between 59°F and 86°F). ... Uncontrolled body movements (tardive dyskinesia). ARISTADA may cause movements that you cannot control in your face, tongue, or ...
Body Temperature Regulation. Disruption of the bodys ability to reduce core body temperature has been attributed to ... Problems with control of your body temperature especially when you exercise a lot or are in an area that is very hot. It is ... Table 14: Percentage of Patients From Placebo-Controlled Trials in Adult Patients with Weight Gain ≥ 7% of Body Weight. ... Mean body weight and weight gain were decreased up to 18% in females in all drug groups relative to control values. A NOAEL ...
  • Deepen your knowledge of the physiology of the human body's temperature and its regulation. (lecturio.com)
  • Exercise physiology textbooks have tables to show the conversion of height and body surface area as they relate to weight and basal metabolic values. (wikipedia.org)
  • Examples of this include using squid giant axons to understand general principles of nerve transmission, using rattlesnake tail shaker muscles for measurement of in vivo changes in metabolites (because the whole animal can be put in an NMR machine), and the use of ectothermic poikilotherms to study effects of temperature on physiology. (wikipedia.org)
  • While other branches of physiology use such variables as light, temperature, oxygen tension, and hormone balance, comparative physiology uses, in addition, species or animal type as a variable for each function. (wikipedia.org)
  • It was mapped from air photos by the Falkland Islands and Dependencies Aerial Survey Expedition (1956-57), and named by the UK Antarctic Place-Names Committee for Henry C. Bazett (1885-1950), American physiologist, pioneer of studies of temperature sensation and the physiology of temperature regulation of the human body. (wikipedia.org)
  • In 1920, August Krogh was awarded the Nobel Prize in Physiology or Medicine for his discovering the mechanism of regulation of capillaries in skeletal muscle. (wikipedia.org)
  • on the website Sciencing, since the body is made up of 60-75% water and the brain up to 70% water, body homeostasis and balance is dependent on keeping the body temperature within a particular range meaning that wild swings in temperature would throw the body off balance. (calgarywaterpureandsimple.ca)
  • Dehydration prevention must be kept in check to maintain homeostasis in the body. (calgarywaterpureandsimple.ca)
  • How Does the Body Maintain Homeostasis in Response to Exercise? (livestrong.com)
  • The hypothalamus is highly involved in maintaining homeostasis of the body, and the median preoptic nucleus is no exception, contributing to regulation of blood composition, body temperature , and non-REM sleep . (wikipedia.org)
  • Specific circuits within the CNS are dedicated to the maintenance of homeostasis and an optimal cellular environment through regulation of autonomic function. (ohsu.edu)
  • The Morrison lab's research uses electrophysiological and anatomical approaches to understand the functional organization, rhythmicities, developmental influences and pharmacology of the CNS circuits that regulate the sympathetic outflows controlling variables critical for homeostasis such as body temperature, energy expenditure, blood glucose, blood pressure, cardiac output and plasma catecholamines.We are currently pursuing three main areas of investigation in the rapidly growing field of autonomic neuroscience. (ohsu.edu)
  • The interactions among exercise, appetite, and energy intake are important for the control and maintenance of energy homeostasis and body weight. (humankinetics.com)
  • organ system for circulating blood in animals The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis. (wikipedia.org)
  • The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body. (wikipedia.org)
  • Newswise - ATLANTA-New discoveries about the mechanism responsible for heat generation in the body related to fat tissue oppose classical views in the field and could lead to new ways to fight metabolic disorders associated with obesity, according to a study led by Georgia State University. (newswise.com)
  • Brown adipose tissue dissipates energy by producing heat to maintain body temperature. (newswise.com)
  • Understanding brown fat heat generation in our body can help us design new approaches to boost energy expenditure and improve metabolic health. (newswise.com)
  • Exercise modality modulates body temperature regulation during exercise in uncompensable heat stress. (biomedsearch.com)
  • This study evaluated exercise modality [i.e. self-paced (SP) or fixed-intensity (FI) exercise] as a modulator of body temperature regulation under uncompensable heat stress. (biomedsearch.com)
  • The objectives of the current study were to model the impact of myostatin genotype (MG) on body temperature during heat and cold stress and conduct a genome-wide association study (GWAS) to better understand the genetic basis of body temperature regulation during extreme temperatures. (unl.edu)
  • Hourly Tympanic and Vaginal temperature (°C) measurements were collected for steers and heifers, respectively, for 5 days during times of anticipated heat and cold stress. (unl.edu)
  • Converting liquid requires a large amount of heat, which is absorbed from the surface of the body, thus cooling the skin. (brainscape.com)
  • is given off as heat which is why your body is nearly 100°F in temperature! (antranik.org)
  • If the air temperature was actually warmer than you, like say during a summer day in Las Vegas, then the heat would transfer onto you from the air. (antranik.org)
  • With the help of radiation (flow of heat from warmer to cooler areas) and sweating, the body tries to lose heat in order to keep itself cool. (healthhearty.com)
  • This is the reason why the body finds it difficult to lose heat in hot and humid weather. (healthhearty.com)
  • A healthy body is capable of regulating its temperature by balancing heat production and heat loss. (healthhearty.com)
  • Water not only absorbs and transfers heat very well, but also it stabilizes body temperature whether it is from external or internal sources. (calgarywaterpureandsimple.ca)
  • One of the most protective qualities of water is that it can absorb heat before a rise in temperature. (calgarywaterpureandsimple.ca)
  • Water essentially helps to regulate heat in the body by moving it to vital organs and away from the extremities when it needs to maintain heat. (calgarywaterpureandsimple.ca)
  • Concurrently, if the body gets too hot, excess heat in the body is released as sweat leaves the body therefore, cooling the body. (calgarywaterpureandsimple.ca)
  • Although the first three aspects of the process help with heat loss, it's evaporation or sweating that guards against overheating which in turn, controls the increase in body temperature. (calgarywaterpureandsimple.ca)
  • At that pool temperature, without the ablity to self-regulate my body heat, I find that I don't warm up, even after a number of laps. (peeterjoot.com)
  • When the body is exposed to chilling temperatures that remove heat faster than what the body's metabolic output can replace, changes take place in the skin to conserve heat. (pharmacologicalsciences.us)
  • When the body is faced with the need to cast out thermal energy, the circulatory processes are reversed and blood is sent coursing through the skin's periphery, maximizing radiative and convective heat losses. (pharmacologicalsciences.us)
  • It requires little analysis to discern that the temperature of an object represents the resultant of two factors: the gain of heat from without or within and the loss of heat. (jamanetwork.com)
  • The body temperature of an animal may therefore be conceived to represent a balance between heat production and heat dissipation. (jamanetwork.com)
  • Extra heat raises your body temperature, so your body needs to eliminate heat as quickly as possible. (livestrong.com)
  • If your body heat rises above that, you can sweat or radiate heat to cool down. (livestrong.com)
  • During exercise, your body releases heat by pushing warm blood toward your skin. (livestrong.com)
  • That's when your body has to rely mainly on radiation to disperse heat. (livestrong.com)
  • When you work out in water, body heat is transferred to the water, and removed. (livestrong.com)
  • The maintenance of body temperature within a range that enables cells to function efficiently involves heat transfer between the organism and the external environment. (biologyboom.com)
  • Although the body temperature of most fishes matches the environment, some large, active species maintain a higher current heat exchanger. (biologyboom.com)
  • The marine mammals maintain their high body temperatures in cold waters by a thick layer of insulating blubber and countercurrent heat exchange between arterial and venous blood. (biologyboom.com)
  • For example, at low environmental temperatures, people might have to expend 1800 kcal/day, or more, solely to generate the heat necessary to maintain a body temperature of 37°C and perhaps 10% more at febrile temperatures. (intlminingsociety.org)
  • In addition, if older adults live a more sedentary lifestyle, they do not produce as much body heat. (epnet.com)
  • Heat exhaustion-This occurs when the body becomes too hot. (epnet.com)
  • Heat stroke-Symptoms of this potentially lethal rise in body temperature include confusion, bizarre behaviors, a strong, rapid pulse, dry, flushed skin with no sweat, and headache or nausea. (epnet.com)
  • The body temperature is regulated by balancing heat gain and heat loss. (medguidance.com)
  • A well functional thyroid hormone helps the body to make 65% energy and 35% heat through the burning of calories for fuel. (medguidance.com)
  • As the body tend to produce more heat due to vasoconstriction, sweating is the way to cool the body down. (medguidance.com)
  • The extent to which heat tolerance is affected by residence in a semitropical climate, season of the year, and job heat exposure, is studied in two groups of subjects: those exposed to heat in their jobs, and those working in neutral temperature jobs. (cdc.gov)
  • Subjects are exposed to several levels of heat as measured by the following four heat indices: corrected effective temperature, wet bulb globe temperature, predicted four hour sweat rate, and the Belding-Hatch heat stress index. (cdc.gov)
  • These results also suggest that conductive BC was effective in promoting heat dissipation from the body while wearing the PFE and mitigated a level of uncompensable heat stress. (cdc.gov)
  • The enclosure is constructed for transferring a heat transfer liquid into direct contact with the portion of the patient's body received. (google.com)
  • The enclosure is constructed for transferring a heat transfer liquid into direct contact with the portion of the patient's body received in the enclosure to promote heat transfer between the patient's body and the heat transfer liquid. (google.com)
  • 7. The head-cooling device of claim 1 further comprising a body-cooling device in fluid communication with the cap such that the cooling fluid can flow into and out of the body-cooling device, which body-cooling device optionally further comprises at least one heat transfer membrane configured to cover a body portion. (google.co.uk)
  • Although the lethal consequences of extreme heat are increasingly reported in the literature, the fitness costs of exposure to sublethal high air temperatures, typically identified in the 30-40°C range, are poorly understood. (slideshare.net)
  • Heat--exposed females, regardless of body condition, showed lower survival than exposed males, possibly due to their smaller body mass. (slideshare.net)
  • The rectal temperature will be monitored by a rectal thermistor during each heat tolerance test (HTT) and thermo-neutral test (TTT) and will be monitored continuously and viewed by the attending medical staff. (clinicaltrials.gov)
  • electronics which measure peak temperature from at least three readings per second during scan of the temperature detector across an artery and which process the detected peak temperature to provide a temperature display based on a model of heat balance relative to a detected arterial temperature. (google.com.au)
  • Veins surround an artery, and blood returning to body absorbs heat from blood traveling out from body to fin, minimizing heat loss. (wikibooks.org)
  • Fluid in your body also helps to absorb heat your body generates while performing its daily functions, helping you to keep warm when temperatures turn cold, according to the University of Rochester Medical Center. (azcentral.com)
  • This study investigated the effect of hydration differences on body fluid and temperature regulation between tropical and temperate indigenes exercising in the heat. (biomedcentral.com)
  • This may enable Malaysians to reserve more blood for circulation and heat dissipation and thereby maintain lower rectal temperatures in a hydrated condition. (biomedcentral.com)
  • Many studies have observed a greater rise in core body temperature during exercise in the heat when participants are hypohydrated compared with euhydrated [ 2 - 5 ]. (biomedcentral.com)
  • People acclimated to heat in the short-term have a smaller reduction in plasma volume reduction for a given body water deficit than those who are unacclimated [ 19 ]. (biomedcentral.com)
  • The second subassembly is a disposable heat exchange subassembly containing a wire heat exchanger and temperature and flow sensors. (google.ca)
  • Even more vital to survival is the human body's complex, integrated system that maintains precise control over the body's temperature even when it generates tremendous quantities of internal heat through strenuous activity or is exposed to wide-ranging external temperatures. (icr.org)
  • However, the difficulty of that task cannot be fully appreciated without considering the quantity of heat energy the body needs to manage. (icr.org)
  • In fact, about 60 percent of daily energy needs--enough heat to raise the temperature of 20 pounds of water about 2°F every hour--is expended just staying alive. (icr.org)
  • For every one hour of hard work or exercise, the heat generated could raise the temperature of the same water almost 20°F--and well-trained athletes can produce almost twice as much heat. (icr.org)
  • Some engineers assert that offices built to optimal energy efficiency could be heated through the winter using only the body heat of the occupants themselves. (icr.org)
  • The whole brain helps regulate body temperature, but the main thermoregulatory center is the hypothalamus (located midline in the brain behind the eyes), which possesses two specialized sections: a heat-losing center and a heat-promoting center. (icr.org)
  • The body has two distinct specialized cells--heat sensors and cold sensors called 'thermoreceptors'--that are capable of detecting a temperature change as low as 0.4°F. To keep surveillance on the outside world, hundreds of thermoreceptors are optimally located in the skin, mucous membranes of the nose and mouth, the eyes, and in some muscles. (icr.org)
  • The heat-losing center and heat-promoting center each have body systems under its control that can be regulated to keep heat production equal to heat loss. (icr.org)
  • So when it is hot outside or increased physical exertion raises the body temperature above the set point, the activated heat-losing center first inhibits the signal to tiny muscle fibers lining blood vessels in the skin. (icr.org)
  • Additionally, the grayling regulates its body temperature by orienting its body and posture to adjust to the heat from the sun. (wikipedia.org)
  • The role of the glomus body is to shunt blood away from the skin surface when exposed to cold temperature, thus preventing heat loss, and allowing maximum heat flow to the skin in warm weather to allow heat to dissipate. (wikipedia.org)
  • Organ pipes are so sensitive to temperature that the body heat of the organ tuner can affect the tuning. (wikipedia.org)
  • T. carnifex is poikilothermic and larger body sizes help to reduce heat fluctuations. (wikipedia.org)
  • In most cases, as the body is exposed to physical activity, the core temperature of the body tends to rise as heat gain becomes larger than the amount of heat lost. (wikipedia.org)
  • In response to an increase in core temperature, there are a variety of factors which adapt in order to help restore heat balance. (wikipedia.org)
  • A part of the energy received by primary consumers, herbivores, is converted to body heat (an effect of respiration), which is radiated away and lost from the system. (wikipedia.org)
  • The loss of energy through body heat is far greater in warm-blooded animals, which must eat much more frequently than those that are cold-blooded. (wikipedia.org)
  • The heat of the sun is absorbed through the skin into the blood, keeping its body temperature up. (wikipedia.org)
  • An increased heart rate helps the newly absorbed heat transfer throughout the body more quickly. (wikipedia.org)
  • When heat is being produced, different temperatures are maintained in different parts of their bodies, for example, moths generate heat in their thorax prior to flight but the abdomen remains relatively cool. (wikipedia.org)
  • The heart of these moths makes a loop through the center of the thorax facilitating heat exchange and converting the abdomen into both a heat sink and a heat radiator that helps the flying insect in maintaining a stable thoracic temperature under different ambient temperature conditions. (wikipedia.org)
  • Thus, it was believed that heat regulation was only achieved by varying heat loss until evidence for varying heat production was observed in honeybees. (wikipedia.org)
  • Whether flying insects are able or not to regulate their thoracic temperature by regulating heat production or only by varying heat loss, is still a matter of debate. (wikipedia.org)
  • Thus, the rest of this chemical energy is transformed into heat that in turn produces body temperatures significantly greater than those of the ambient. (wikipedia.org)
  • So, heterothermic insects have adapted to make use of the excess heat produced by flight muscles to increase their thoracic temperature pre-flight. (wikipedia.org)
  • However, during warm-up these muscles are contracted simultaneously (or almost simultaneously in some insects) to produce no wing movement (or a minimal amount of wing movement) and produce as much heat as possible to elevate thoracic temperatures to flight-levels. (wikipedia.org)
  • A Liquid Cooling Garment (LCG) is a form-fitting garment that is used to remove body heat from the wearer in environments where evaporative cooling from sweating and open air convection cooling does not work, or the wearer has a biological problem that hinders self-regulation of body temperature. (wikipedia.org)
  • The water draws heat away from the body, resulting in a lower core temperature. (wikipedia.org)
  • Furthermore, when individual neurons of the SCN from a mouse were treated with heat pulses, a similar resetting of oscillators was observed, but when an intact SCN was treated with the same heat pulse treatment the SCN was resistant to temperature change by exhibiting an unaltered circadian oscillating phase. (wikipedia.org)
  • It results when the homeostatic control mechanisms of heat within the body malfunction, causing the body to lose heat faster than producing it. (wikipedia.org)
  • It was then found that local differences were present, since heat production and heat loss vary considerably in different parts of the body, although the circulation of the blood tends to bring about a mean temperature of the internal parts. (wikipedia.org)
  • Convection: Increasing blood flow to body surfaces to maximize heat transfer across the advective gradient. (wikipedia.org)
  • Radiation: releasing heat by radiating it away from the body. (wikipedia.org)
  • In addition to delivering oxygen, blood flow helps to dissipate heat in a physical body by redirecting warm blood closer to its surface where it can help to cool a body through sweating and thermal dissipation. (wikipedia.org)
  • An endotherm (from Greek ἔνδον endon "within" and θέρμη thermē "heat") is an organism that maintains its body at a metabolically favorable temperature, largely by the use of heat set free by its internal bodily functions instead of relying almost purely on ambient heat. (wikipedia.org)
  • The brain generates about 16% of the total heat produced by the body. (wikipedia.org)
  • Diving reptiles conserve heat by heat exchange mechanisms, whereby cold blood from the skin picks up heat from blood moving outward from the body core, re-using and thereby conserving some of the heat that otherwise would have been wasted. (wikipedia.org)
  • In contrast, endothermic animals, as a rule, maintain nearly constant high operational body temperatures largely by reliance on internal heat produced by metabolically active organs (liver, kidney, heart, brain, muscle) or even by specialized heat producing organs like brown adipose tissue (BAT). (wikipedia.org)
  • Mice lacking these protein are unable to sense elevated temperatures (>33 °C) but are able to sense cold and noxious heat. (wikipedia.org)
  • Its body length ranges from 46 to 68 cm (18 to 27 in), with a generally rounded body shape to minimize the escape of body heat. (wikipedia.org)
  • To prevent heat loss, the Arctic fox curls up tightly tucking its legs and head under its body and behind its furry tail. (wikipedia.org)
  • In the heat of the savannas, better cooling mechanisms were required, which were achieved through the loss of body hair and development of more efficient perspiration. (wikipedia.org)
  • It was harder to get food in the hot savannas and as mammalian brains are prone to overheating - 5 or 6 °C rise in temperature can lead to heatstroke - so there was a need for the development of better heat regulation. (wikipedia.org)
  • Brown fat also contains more capillaries than white fat, to supply the tissue with oxygen and nutrients and distribute the produced heat throughout the body. (wikipedia.org)
  • Even though insulating and heating technologies have become more sophisticated, the overall approach used by modern humans to defend body temperature against cold - insulating and heating themselves - is no different from the one used by the caveman. (feverlab.net)
  • All animals including humans have built-in mechanisms that regulate their body temperature. (study.com)
  • This finding has implications on both the temperature dependence of the mechanism of MDMA neurotoxicity and human use because fatal hyperthermia is associated with MDMA use in humans. (jneurosci.org)
  • Recently, it was proposed that predominant function of TRPV1 is body temperature maintenance Experiments have shown that TRPV1 blockade increases body temperature in multiple species, including rodents and humans, suggesting that TRPV1 is involved in body temperature maintenance. (wikipedia.org)
  • Yawning is sometimes accompanied, both in humans and animals, by an instinctive act of stretching several parts of the body, including arms, neck, shoulders and back. (wikipedia.org)
  • As humans fall asleep, body activity slows down. (wikipedia.org)
  • They have eccrine glands between hairs over most of their body (while humans have them between the hairs on their scalp). (wikipedia.org)
  • Blood is a body fluid in humans and other animals that delivers necessary substances such as nutrients and oxygen to the cells and transports metabolic waste products away from those same cells. (wikipedia.org)
  • In humans and other amniotes (mammals, birds and reptiles) most of these substances leave the body as urine and to some degree exhalation, mammals also expel them through sweating. (wikipedia.org)
  • For humans, this occurs when the body is exposed to constant temperatures of approximately 55 °C (131 °F), and with prolonged exposure (longer than a few hours) at this temperature and up to around 75 °C (167 °F) death is almost inevitable. (wikipedia.org)
  • citation needed] Humans may also experience lethal hyperthermia when the wet bulb temperature is sustained above 35 °C (95 °F) for six hours. (wikipedia.org)
  • In humans for example, the skin located under the eyes and around the eyelids is the thinnest skin in the body at 0.5 mm thick, and is one of the first areas to show signs of aging such as "crows feet" and wrinkles. (wikipedia.org)
  • A normal reduction in the environmental temperature does not slow the metabolic processes of a thermoregulator like a bird or mammal. (intlminingsociety.org)
  • Some of those processes are breathing , blood circulation , controlling body temperature , cell growth , brain and nerve function, and contraction of muscles . (wikipedia.org)
  • Biochemical processes, particularly enzyme activities, within these organs are essential for life and function best in a narrow temperature range of 96 to 101°F, which is called the 'core' body temperature range. (icr.org)
  • It also is involved in cognitive processes associated with movement, arousal, executive function, body temperature regulation, and pleasure and reward, and other processes. (wikipedia.org)
  • Serotonin is a monoamine neurotransmitter that plays a regulatory role in mood, sleep, appetite, body temperature regulation, and other processes. (wikipedia.org)
  • citation needed] Information about the direct neuronal regulation of metabolic processes and circadian rhythm-controlled behaviors is not well known among either endothermic or ectothermic vertebrates, although extensive research has been done on the SCN in model animals such as the mammalian mouse and ectothermic reptiles, in particular, lizards. (wikipedia.org)
  • The TRPV3 protein belongs to a family of nonselective cation channels that function in a variety of processes, including temperature sensation and vasoregulation. (wikipedia.org)
  • Depending on whether or not they are initiated through locomotion and intentional movement of the muscles, thermogenic processes can be classified as one of the following: Exercise-associated thermogenesis (EAT) Non-exercise activity thermogenesis (NEAT) Diet-induced thermogenesis (DIT) One method to raise temperature is through shivering. (wikipedia.org)
  • To alleviate these costs, birds in captivity let their body temperature increase, thereby entering a state of hyperthermia. (lu.se)
  • We found pronounced hyperthermia in several species with the highest body temperatures close to predicted lethal levels. (lu.se)
  • Coverage of the body with a water-impermeable wrapping, as has occasionally been done in faddish weight control programs, may result in hyperthermia, particularly if there is concurrent exercise. (pharmacologicalsciences.us)
  • Treatment with atropine (5 mg/kg, i.p.), a cholinergic antagonist, abolished the hyperthermic effect of bicuculline but potentiated the hypothermic effect of muscimol either at 28 degrees C or at 40 degrees C. Bicuculline-induced hyperthermia was attenuated at normal or higher temperature by pretreatment with L-dopa + carbidopa. (muscimol.xyz)
  • have correlated protection against MDMA- and methamphetamine (METH)-induced neurotoxicity with a decrease in CORE TEMP, indicating that cooling of the body and prevention of MDMA- or METH-induced hyperthermia prevents neurotoxicity. (jneurosci.org)
  • The major roadblock for the usefulness of these drugs is their effect on body temperature (hyperthermia). (wikipedia.org)
  • If the body is unable to maintain a normal temperature and it increases significantly above normal, a condition known as hyperthermia occurs. (wikipedia.org)
  • When travelling across a number of time zones, the body clock (circadian rhythm) will be out of synchronisation with the destination time, as it experiences daylight and darkness contrary to the rhythms to which it has grown accustomed. (wikipedia.org)
  • Pharmacological blockade of the cold receptor TRPM8 attenuates autonomic and behavioral cold defenses and decreases deep body temperature. (feverlab.net)
  • In the study entitled 'Pharmacological blockade of the cold receptor TRPM8 attenuates autonomic and behavioral cold defenses and decreases deep body temperature' (J Neurosci 32: 2086-2099, 2012), we used M8-B, a selective and potent antagonist of the transient receptor potential melastatin-8 (TRPM8) channel. (feverlab.net)
  • BMR generally decreases with age and with the decrease in lean body mass (as may happen with aging). (wikipedia.org)
  • Although different species of animals are adapted to different temperature range, within that range many animals can maintain a constant internal temperature as the external temperature fluctuates. (biologyboom.com)
  • Animals capable of maintaining a body temperature above ambient temperature when other members of its species could not would have a fitness advantage. (wikipedia.org)
  • Homeothermy is one of the three types of thermo regulation in warm-blooded animal species. (wikipedia.org)
  • Through a series of twitches and contractions many python species can raise the temperature of their bodies by as much as eight degrees F. Loosening the coils and exposing the eggs to more air circulation does the opposite. (wikipedia.org)
  • To preserve the number of chromosomes in the offspring - which differs between species - each gamete must have half the usual number of chromosomes present in other body cells. (wikipedia.org)
  • Kellner's scientific achievements include the description of more than thirty species, among which Santanaraptor (1996, 1999) that shows among the best soft tissue (blood vessels, muscle fibers) reported in any dinosaur and Thalassodromeus (2002, a study done with Diogenes de Almeida Campos) that allowed the establishment of a new hypothesis regarding the use of the head crest in body temperature regulation of pterosaurs. (wikipedia.org)
  • The rectum has traditionally been considered to reflect most accurately the temperature of internal parts, or in some cases of sex or species, the vagina, uterus or bladder. (wikipedia.org)
  • Consequently, they are listed in the Kazakhstan Government Regulation of Approval of Rare and Endangered Animal and Plant Species Index (2006). (wikipedia.org)
  • P. roborovskii is also distinct from the other species morphologically (in its smaller body size and pelage, for example) and ecologically (preferring sandy, arid habitats). (wikipedia.org)
  • Psilocin is the pharmacologically active agent in the body after ingestion of psilocybin or some species of psychedelic mushrooms. (wikipedia.org)
  • The unit of measurement is the calorie, defined as the amount of energy required to raise the temperature of one gram of water one degree Celsius. (coursehero.com)
  • Water is the most important element that you can ingest into the human body due its multipurpose properties especially with respect to body temperature regulation. (calgarywaterpureandsimple.ca)
  • Water is needed during summer and winter because not having enough fluids can lead to a drop in body temperature. (calgarywaterpureandsimple.ca)
  • Since blood is made up primarily of water, the water in every cell of the body acts as a protective barrier against fluctuations in temperatures. (calgarywaterpureandsimple.ca)
  • Water then actually has a dual purpose when maintaining body temperature. (calgarywaterpureandsimple.ca)
  • The amount of water that people should take depends on how thirsty they are because some people may need 8 glasses of water per day but other people may need more or less depending on their body weight, whether they are doing exercise, and the temperature fluctuations internally and externally. (calgarywaterpureandsimple.ca)
  • This state enables the animal to temporarily withstand varying periods of unfavorable temperatures or the absence of food and water. (biologyboom.com)
  • the excretory system eliminates metabolic wastes, water, and ions from the body. (biologyboom.com)
  • To avoid hydration, freshwater fishes rarely drink much water, have impermeable body surfaces covered with mucus, excrete a dilute urine, and take up ions through their gills. (biologyboom.com)
  • To avoid dehydration, they frequently drink water, have relatively permeable body surfaces, excrete a small volume of concentrated urine, and secrete ions from their gills. (biologyboom.com)
  • To make urine, kidneys produce a filtrate of the blood and reabsorb most of the water, glucose, and needed ions, while allowing wastes to pass from the body. (biologyboom.com)
  • PURPOSE: The purpose of this study was to investigate the effects of body cooling (BC) by utilizing water (conductive) cooled garments on PT and recovery in individuals exercising while wearing a prototype FE (PFE). (cdc.gov)
  • at water inlet temperature (Tin) of 18 degrees C. The treadmill walking protocol consisted of 3 stages of 15 min exercise at 75% VO2max, and 3 stages of 10 min rest following each exercise stage. (cdc.gov)
  • DO NOT use ice water or rubbing alcohol baths to reduce a child's temperature. (medlineplus.gov)
  • A variety of factors may affect size, and earlier studies indicate that water temperature may be a particularly important variable. (springer.com)
  • Here we tested the hypothesis that the body size of cladocerans, calanoids, and cyclopoids declines with increasing water temperature, a response documented in an earlier study that considered only cladoceran zooplankton. (springer.com)
  • Water in your body acts like a canal transportation system. (azcentral.com)
  • If you lose as little as 2 to 4 percent of your body weight in water, you can start to experience changes in mental function, according to the University of Rochester Medical Center. (azcentral.com)
  • Such lifestyles - climbing and hanging vertically, grasping branches above the water, wading on two legs, floating vertically collecting floating vegetation etc. - help explain hominoid (ape and human) body enlargement, tail loss, vertical spine, dorsal shoulder blades, and wide thorax and pelvis. (scienceblogs.com)
  • Bio-Logic Aqua® Research Water Life Science® Founder Sharon Kleyne will discuss the human body microenvironment and proactive management on her Sharon Kleyne Hour™ Power of Water® radio show of April 18, 2016. (prweb.com)
  • Sharon Kleyne Hour® Power of Water®" is sponsored by Bio-Logic Aqua® Research Water Life Science®, founded by Kleyne and specializing in fresh water, the atmosphere, body surface evaporation, dehydration and education. (prweb.com)
  • Atmospheric conditions such as temperature, air quality and humidity (atmospheric water vapor), Kleyne notes, can affect: (1) The rate at which water evaporates from the skin surface into the air. (prweb.com)
  • 2) The body interior's ability to retain water. (prweb.com)
  • The thin humid air layer surrounding the body, says Kleyne, helps prevent dehydration by slowing the loss of body water to evaporation. (prweb.com)
  • Dehydration from body surface evaporation may not be immediately life threatening but can disrupt virtually every cell, structure and function in the body since they all rely on water. (prweb.com)
  • Fish are abundant in most bodies of water. (wikipedia.org)
  • The third stage is the copepodid stage, in which the length is ca. 0.7 mm and could take 2 to 14 days depending on water temperature, and the salmon louse attaches itself to the fish. (wikipedia.org)
  • Water, minerals, vitamins, and cholesterol are not broken down (they are used by the body in the form in which they are absorbed) and so cannot be used for energy. (wikipedia.org)
  • The mean surface temperature is only +5 °C. Because most of this chilly planet's water is locked in permafrost and glaciers, the atmosphere (which has a sea-level pressure of 0.7 bar, equivalent to about 3,650 m altitude on Earth) is not only thin but also uncomfortably dry. (wikipedia.org)
  • The absence of predatory fish may also explain why T. carnifex is inclined to ponds, rather than other larger bodies of water. (wikipedia.org)
  • Circulating water and solutes in the body maintain blood pressure in the blood, as well as other functions such as regulation of body temperature. (wikipedia.org)
  • The maritime influences of these bodies of water help to moderate temperature fluctuations and extend the growing season up to a month longer than other regions in New York. (wikipedia.org)
  • Among other things, the Act requires dischargers to obtain a National Pollutant Discharge Elimination System (NPDES) permit to legally discharge pollutants into a water body. (wikipedia.org)
  • However, point source pollution remains an issue in some water bodies, due to some limitations of the Act. (wikipedia.org)
  • Water pollution is the contamination of natural water bodies by chemical, physical, radioactive or pathogenic microbial substances. (wikipedia.org)
  • The input of pollutants into a water body may impact the water's ability to deliver ecological, recreational, educational, and economic services. (wikipedia.org)
  • Given that much of the point source water pollution in the United States comes from municipal wastewater treatment plants, BOD is perhaps the most widely used metric to assess water quality. (wikipedia.org)
  • Before the CWA was enacted, companies indiscriminately discharged their effluents into water bodies. (wikipedia.org)
  • One such water body was the Cuyahoga River located in north-east Ohio. (wikipedia.org)
  • Historically, regulation of point source water pollution in the United States included health- and use-based standards to protect environmental and economic interests. (wikipedia.org)
  • This law is the general law of environment, and for the specific case was created a regulation for water pollution. (wikipedia.org)
  • This regulation is applied to every entity that produces a contamination on the water. (wikipedia.org)
  • The limits presented in this article, are those for new companies and for companies in process of identification of the type of body water that the company will discharge. (wikipedia.org)
  • For example, the skin plays a key role in protecting the body against pathogens and excessive water loss. (wikipedia.org)
  • It forms a protective barrier over the body's surface, responsible for keeping water in the body and preventing pathogens from entering, and is a stratified squamous epithelium, composed of proliferating basal and differentiated suprabasal keratinocytes. (wikipedia.org)
  • Because it interfaces with the environment, skin plays an important immunity role in protecting the body against pathogens and excessive water loss. (wikipedia.org)
  • This keratinized layer of skin is responsible for keeping water in the body and keeping other harmful chemicals and pathogens out, making skin a natural barrier to infection. (wikipedia.org)
  • Wallowing in animals is a comfort behaviour during which an animal rolls its body about in mud, water or snow. (wikipedia.org)
  • To thermoregulate, they rely on wallowing in water or mud to cool the body. (wikipedia.org)
  • The Armstrong limit describes the altitude associated with an objective, precisely defined natural phenomenon: the vapor pressure of body-temperature water. (wikipedia.org)
  • citation needed] Two years later Italian military officer Mario Pezzi set an altitude record of 17,083 m (56,047 ft), wearing a pressure suit in his open-cockpit Caproni Ca.161 biplane even though he was well below the altitude at which body-temperature water boils. (wikipedia.org)
  • The basal body temperature is the lowest body temperature during sleep. (antranik.org)
  • Systems of fertility awareness rely on observation of changes in one or more of the primary fertility signs (basal body temperature, cervical mucus, and cervical position), tracking menstrual cycle length and identifying the fertile window based on this information, or both. (wikipedia.org)
  • Symptoms-based methods involve tracking one or more of the three primary fertility signs: basal body temperature, cervical mucus, and cervical position. (wikipedia.org)
  • Symptothermal methods combine observations of basal body temperature (BBT), cervical mucus, and sometimes cervical position. (wikipedia.org)
  • In the 1930s, Reverend Wilhelm Hillebrand, a Catholic priest in Germany, developed a system for avoiding pregnancy based on basal body temperature. (wikipedia.org)
  • Various biological clocks drive your circadian rhythms and regulate your sleep-wake cycles, hormone release, temperature and several other important bodily functions. (healthhearty.com)
  • The thyroid hormone is responsible for regulating basal metabolic rate, and it also helps to speed up the rate of energy production, which is important to maintain your body warm. (medguidance.com)
  • Testing for GH may involve blood tests (IGF-1 and IGFBP-3), growth hormone stimulation test, or bone age x-ray of the hand or wrist (or body for children younger than 2 years). (wikipedia.org)
  • GHRH stimulates the pituitary gland to secrete growth hormone (GH), which has various effects on body growth and sexual development. (wikipedia.org)
  • What are skin thermoreceptors (temperature receptors) known as? (brainscape.com)
  • Solved] ch type of skin gland is very important in body temperature regulation? (coursehero.com)
  • What about the temperature on the surface of our skin? (antranik.org)
  • Our body can affect or control how much blood flows through our cutaneous vessels (the vessels close to our skin). (antranik.org)
  • As moisture on the skin evaporates, the body cools. (epnet.com)
  • With goose bumps, the hair on the body stick up from the skin to form a layer of insulation. (medlineplus.gov)
  • The skin temperature will be monitored by skin thermistors located at 3 sites (chest, arm and leg) and will be monitored continuously and viewed by the attending medical staff. (clinicaltrials.gov)
  • It is sometimes caused by an allergy to medicines, chemicals that come in contact with the skin, or by body-wide disease. (medlineplus.gov)
  • Some skin secretions are associated with body hair. (wikipedia.org)
  • Scars result from the biological process of wound repair in the skin, as well as in other organs and tissues of the body. (wikipedia.org)
  • Hypertrophic scars occur when the body overproduces collagen, which causes the scar to be raised above the surrounding skin. (wikipedia.org)
  • A glomus body (or glomus apparatus) is a component of the dermis layer of the skin, involved in body temperature regulation. (wikipedia.org)
  • The glomus bodies in the skin and elsewhere are unusual in that their "endothelial cells" exist in multiple layers of cells called myoepithelioid cells. (wikipedia.org)
  • The skin on the palms and the soles of the feet is 4 mm thick and is the thickest skin on the body. (wikipedia.org)
  • The dermis is the layer of skin beneath the epidermis that consists of connective tissue and cushions the body from stress and strain. (wikipedia.org)
  • The most common methods include evaluating a body's skin color, temperature, condition (dry/soft/firm/swollen/sunken/etc), and capillary refill. (wikipedia.org)
  • The human skin is the outer covering of the body. (wikipedia.org)
  • The skin is the largest organ in the human body. (wikipedia.org)
  • The thickness of the skin varies considerably over all parts of the body, and between men and women and the young and the old. (wikipedia.org)
  • The epidermis helps the skin to regulate body temperature. (wikipedia.org)
  • The TRPV3 channel is widely expressed in the human body, especially in the skin in keratinocytes, but also in the brain. (wikipedia.org)
  • The loss of body hair led to the development of dark skin, which acted as a mechanism of natural selection against folate depletion, and to a lesser extent, DNA damage. (wikipedia.org)
  • Due to natural selection, people who lived in areas of intense sunlight developed dark skin colouration to protect against ultraviolet (UV) light and to protect their body mainly from folate depletion. (wikipedia.org)
  • We were surprised to see that mice lacking CGI-58 in brown fat were not cold sensitive and they even had higher body temperature than the control mice when food was provided during cold exposure," Shin said. (newswise.com)
  • There was no effect of a single day of exposure to temperatures ≥35°C but repeated exposure was associated with reduced body condition: 3.0% reduction in body mass per day of exposure. (slideshare.net)
  • The regulations place a duty on employers to reduce the risk to their employees' health from exposure to vibration whether this is caused by the use of hand-held or hand-guided power equipment, holding materials which are being processed by machines or which is caused by the sitting or standing on industrial machines or vehicles. (wikipedia.org)
  • Section 4 of the regulations details the 'exposure limit values and action values' for both HAV and WBV. (wikipedia.org)
  • The regulations require employers to make an assessment of exposure in order to identify whether the 'exposure action value' or the 'exposure limit value' is likely to be exceeded. (wikipedia.org)
  • Notes: In comparison to the short term, relatively intensive exposures described above, for long term environmental exposure of the general public there is a limit of 0.08 W/kg averaged over the whole body. (wikipedia.org)
  • A whole-body average SAR of 0.4 W/kg has been chosen as the restriction that provides adequate protection for occupational exposure. (wikipedia.org)
  • An additional safety factor of 5 is introduced for exposure of the public, giving an average whole-body SAR limit of 0.08 W/kg. (wikipedia.org)
  • What is the relatively constant temperature the human body remains at? (brainscape.com)
  • We have considered the major changes that occur as the human body becomes acclimated to altitude and how these adaptations affect performance at altitude. (humankinetics.com)
  • The organs in the skull, chest, and abdomen are the most temperature-sensitive organs in the human body. (icr.org)
  • To mitigate the health effects of temperature, humidity fluctuations, and air pollution on the human body microenvironment, Kleyne suggests several proactive strategies. (prweb.com)
  • A next step for the investigating team is to examine the accuracy of the technology in quantifying the effect of various medications in the active fat content of the human body. (phys.org)
  • Amino acids are the building blocks of protein and there are about 20 used in the human body, of which about half can be constructed internally. (wikipedia.org)
  • Despite getting more hours of sleep than typically required by the human body, patients awake unrefreshed and may also suffer sleep inertia, known more descriptively in its severe form as sleep drunkenness (significant disorientation upon awakening). (wikipedia.org)
  • The human body has evolved to balance salt intake with need through means such as the renin-angiotensin system. (wikipedia.org)
  • The combined surface area of all red blood cells of the human body would be roughly 2,000 times as great as the body's exterior surface. (wikipedia.org)
  • Specific absorption rate (SAR) is a measure of the rate at which energy is absorbed by the human body when exposed to a radio frequency (RF) electromagnetic field. (wikipedia.org)
  • Your kidneys use fluids in the form of urine to eliminate waste products and toxins from your body. (azcentral.com)
  • Acidosis An acidic condition in body fluids, chiefly blood. (wikipedia.org)
  • At or above the Armstrong limit, exposed body fluids such as saliva, tears, urine, blood and the liquids wetting the alveoli within the lungs-but not vascular blood (blood within the circulatory system)-will boil away without a pressure suit, and no amount of breathable oxygen delivered by any means will sustain life for more than a few minutes. (wikipedia.org)
  • Phodopus, a genus of rodents in the hamster subfamily Cricetinae-a division of the larger family Cricetidae-is a lineage of small hamsters native to central Asia that display unusual adaptations to extreme temperatures. (wikipedia.org)
  • A mechanism in which air warmed by your body becomes more dense, and is then pushed away by cooler air coming to take its place. (brainscape.com)