Biological systems as affected by time. Aging, biological rhythms, and cyclic phenomena are included. Statistical, computer-aided mathematical procedures are used to describe, in mathematical terminology, various biological functions over time.
A multidisciplinary field of research and practice studying the periodicity of biological systems and the application of principles of chronobiology to various therapeutic strategies. Aging, biological rhythms, and cyclic phenomena are included. Statistical, computer-aided mathematical procedures are used to describe, in mathematical terminology, various biological functions over time.
The adaptation of therapeutic approaches such as pharmacological (DRUG CHRONOTHERAPY), surgical, radiological, or physical to the known variations in biological RHYTHMICITY, such as CIRCADIAN RHYTHMS. The treatment is aimed at supporting normal rhythms, or modifying the timing of therapy to achieve maximal efficacy and minimal adverse effect.
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.
Disruptions of the rhythmic cycle of bodily functions or activities.
Indolesulfonic acid used as a dye in renal function testing for the detection of nitrates and chlorates, and in the testing of milk.
The continuous sequential physiological and psychological maturing of an individual from birth up to but not including ADOLESCENCE.
The class Insecta, in the phylum ARTHROPODA, whose members are characterized by division into three parts: head, thorax, and abdomen. They are the dominant group of animals on earth; several hundred thousand different kinds having been described. Three orders, HEMIPTERA; DIPTERA; and SIPHONAPTERA; are of medical interest in that they cause disease in humans and animals. (From Borror et al., An Introduction to the Study of Insects, 4th ed, p1)
Basic helix-loop-helix (bHLH) domain-containing proteins that contain intrinsic HISTONE ACETYLTRANSFERASE activity and play important roles in CIRCADIAN RHYTHM regulation. Clock proteins combine with Arntl proteins to form heterodimeric transcription factors that are specific for E-BOX ELEMENTS and stimulate the transcription of several E-box genes that are involved in cyclical regulation. This transcriptional activation also sets into motion a time-dependent feedback loop which in turn down-regulates the expression of clock proteins.
Biological mechanism that controls CIRCADIAN RHYTHM. Circadian clocks exist in the simplest form in cyanobacteria and as more complex systems in fungi, plants, and animals. In humans the system includes photoresponsive RETINAL GANGLION CELLS and the SUPRACHIASMATIC NUCLEUS that acts as the central oscillator.
Laws and regulations, pertaining to the field of veterinary medicine, proposed for enactment or enacted by a legislative body.
Biological processes, properties, and characteristics of the whole organism in human, animal, microorganisms, and plants, and of the biosphere.
Books used in the study of a subject that contain a systematic presentation of the principles and vocabulary of a subject.
The biological science concerned with the life-supporting properties, functions, and processes of living organisms or their parts.
Tumors or cancer of the DIGESTIVE SYSTEM.
Diseases in any part of the GASTROINTESTINAL TRACT or the accessory organs (LIVER; BILIARY TRACT; PANCREAS).
A group of organs stretching from the MOUTH to the ANUS, serving to breakdown foods, assimilate nutrients, and eliminate waste. In humans, the digestive system includes the GASTROINTESTINAL TRACT and the accessory glands (LIVER; BILIARY TRACT; PANCREAS).
The ENTERIC NERVOUS SYSTEM; PARASYMPATHETIC NERVOUS SYSTEM; and SYMPATHETIC NERVOUS SYSTEM taken together. Generally speaking, the autonomic nervous system regulates the internal environment during both peaceful activity and physical or emotional stress. Autonomic activity is controlled and integrated by the CENTRAL NERVOUS SYSTEM, especially the HYPOTHALAMUS and the SOLITARY NUCLEUS, which receive information relayed from VISCERAL AFFERENTS.
Volume of circulating BLOOD. It is the sum of the PLASMA VOLUME and ERYTHROCYTE VOLUME.
The physiological mechanisms that govern the rhythmic occurrence of certain biochemical, physiological, and behavioral phenomena.
That portion of the electromagnetic spectrum in the visible, ultraviolet, and infrared range.
Circadian rhythm signaling proteins that influence circadian clock by interacting with other circadian regulatory proteins and transporting them into the CELL NUCLEUS.
Basic helix-loop-helix (bHLH) domain-containing proteins that play important roles in CIRCADIAN RHYTHM regulation. They combine with CLOCK PROTEINS to form heterodimeric transcription factors that are specific for E-BOX ELEMENTS and stimulate the transcription of several E-box genes that are involved in cyclical regulation.
A light-sensitive neuroendocrine organ attached to the roof of the THIRD VENTRICLE of the brain. The pineal gland secretes MELATONIN, other BIOGENIC AMINES and NEUROPEPTIDES.
A rapid, low-dose, digital imaging system using a small intraoral sensor instead of radiographic film, an intensifying screen, and a charge-coupled device. It presents the possibility of reduced patient exposure and minimal distortion, although resolution and latitude are inferior to standard dental radiography. A receiver is placed in the mouth, routing signals to a computer which images the signals on a screen or in print. It includes digitizing from x-ray film or any other detector. (From MEDLINE abstracts; personal communication from Dr. Charles Berthold, NIDR)
The relationship between an invertebrate and another organism (the host), one of which lives at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.
A protozoan disease caused in humans by four species of the PLASMODIUM genus: PLASMODIUM FALCIPARUM; PLASMODIUM VIVAX; PLASMODIUM OVALE; and PLASMODIUM MALARIAE; and transmitted by the bite of an infected female mosquito of the genus ANOPHELES. Malaria is endemic in parts of Asia, Africa, Central and South America, Oceania, and certain Caribbean islands. It is characterized by extreme exhaustion associated with paroxysms of high FEVER; SWEATING; shaking CHILLS; and ANEMIA. Malaria in ANIMALS is caused by other species of plasmodia.
All of the divisions of the natural sciences dealing with the various aspects of the phenomena of life and vital processes. The concept includes anatomy and physiology, biochemistry and biophysics, and the biology of animals, plants, and microorganisms. It should be differentiated from BIOLOGY, one of its subdivisions, concerned specifically with the origin and life processes of living organisms.
Invertebrate organisms that live on or in another organism (the host), and benefit at the expense of the other. Traditionally excluded from definition of parasites are pathogenic BACTERIA; FUNGI; VIRUSES; and PLANTS; though they may live parasitically.
A species of protozoa that is the causal agent of falciparum malaria (MALARIA, FALCIPARUM). It is most prevalent in the tropics and subtropics.
A publication issued at stated, more or less regular, intervals.
A bibliographic database that includes MEDLINE as its primary subset. It is produced by the National Center for Biotechnology Information (NCBI), part of the NATIONAL LIBRARY OF MEDICINE. PubMed, which is searchable through NLM's Web site, also includes access to additional citations to selected life sciences journals not in MEDLINE, and links to other resources such as the full-text of articles at participating publishers' Web sites, NCBI's molecular biology databases, and PubMed Central.
Agents that cause an increase in the expansion of a bronchus or bronchial tubes.
"The business or profession of the commercial production and issuance of literature" (Webster's 3d). It includes the publisher, publication processes, editing and editors. Production may be by conventional printing methods or by electronic publishing.
The study of the heart, its physiology, and its functions.
Lists of persons or organizations, systematically arranged, usually in alphabetic or classed order, giving address, affiliations, etc., for individuals, and giving address, officers, functions, and similar data for organizations. (ALA Glossary of Library and Information Science, 1983)
A heterogeneous condition in which the heart is unable to pump out sufficient blood to meet the metabolic need of the body. Heart failure can be caused by structural defects, functional abnormalities (VENTRICULAR DYSFUNCTION), or a sudden overload beyond its capacity. Chronic heart failure is more common than acute heart failure which results from sudden insult to cardiac function, such as MYOCARDIAL INFARCTION.
The hospital department responsible for the administration and provision of diagnostic and therapeutic services for the cardiac patient.
Organizations representing specialized fields which are accepted as authoritative; may be non-governmental, university or an independent research organization, e.g., National Academy of Sciences, Brookings Institution, etc.
Conferences, conventions or formal meetings usually attended by delegates representing a special field of interest.

Effects of endothelin on spontaneous contractions in lymph vessels. (1/75)

A mode of action of endothelin (ET) on spontaneous contractions was investigated in ring preparations of isolated bovine mesenteric lymphatics. ET-1 at concentrations between 10(-10) and 10(-9) M caused a dose-dependent increase in the frequency of spontaneous contractions. The specific ET(A)-receptor antagonist BQ-123 (5 x 10(-7) M) caused a significant inhibition of the ET-1-induced positive chronotropic effect in the ring preparations with and without the endothelium. Mechanical denudation of the lymphatic endothelial cells produced a significant potentiation of the ET-induced positive chronotropic effect. BQ-3020 (10(-8)-10(-7) M), a selective ET(B)-receptor agonist, induced dose dependently negative chronotropic and inotropic effects on the spontaneous contractions in the ring preparations with intact endothelium. Mechanical removal of the endothelium caused a significant reduction of the BQ-3020-induced negative chronotropic and inotropic effects. The ET-1-induced positive chronotropic effect was potentiated by pretreatment with N(omega)-nitro-L-arginine methyl ester (L-NAME) (10(-5) M) but unaffected by aspirin (10(-5) M). Additional treatment with L-arginine (10(-4) M) completely reversed the L-NAME-mediated potentiation of the ET-induced chronotropic effect. These results suggest that stimulation of ET(A) receptors on the lymphatic smooth muscles causes a positive chronotropic effect on the spontaneous contractions, and stimulation of ET(B) receptors on the lymphatic endothelial cells induces a release of nitric oxide, which results in the chronotropic and inotropic effects on spontaneous contractions in isolated bovine mesenteric lymphatics.  (+info)

Morningness/eveningness and the need for sleep. (2/75)

The purpose of this study was to determine, in a large sample of adults of all ages (17-80 years), the effect of morningness/eveningness on sleep/wake schedules, sleep needs, sleep hygiene and subjective daytime somnolence. A total of 617 subjects (219 subjects per chronotype group) matched for age, sex and employment status, completed an abridged morningness/eveningness questionnaire, a questionnaire on sleep habits and the quality of sleep, and the Epworth Sleepiness Scale. Eveningness was associated with a greater need for sleep, less time in bed during the week compared to ideal sleep needs, more time in bed at the weekend, a later bedtime and waking-up time especially at the weekend, more irregular sleep/wake habits and greater caffeine consumption. These subjects built up a sleep debt during the week and extended their duration of sleep at the weekend. They did not, however, rate themselves more sleepy than other types, despite the fact that our results showed a clear link between subjectively evaluated daytime somnolence and sleep debt. Why they were less affected by sleep deprivation is not clear. This raises the question of individual susceptibility to the modification of sleep parameters.  (+info)

Is the secretion of atrial natriuretic peptide in man under neural control? (3/75)

AIMS: Previous work has described short-term variation in the circulating plasma level of atrial natriuretic peptide (ANP), but the mechanism remains unknown. Our aim was to investigate the role of cardiac innervation in this variability. METHODS AND RESULTS: Blood samples were obtained from the right atrium via a pulmonary artery flotation catheter every 2 min over a 90 min period. Seven patients who underwent cardiac transplantation by the standard biatrial technique (partial innervation) and ten patients who underwent transplantation by the bicaval technique (total denervation) were studied. ANP levels were measured by radioimmunoassay. The median ANP levels were somewhat higher in the biatrial group compared to the bicaval group [470 (150-1095) vs. 216 (100-605) pg. ml(-1); median (range); P = ns], and both were much higher than normal levels in the pulmonary artery (40 (24, 56) pg ml(-1); median and interquartile range). In both transplant groups circulating plasma ANP levels showed considerable variability. The median number of 'peaks' and 'troughs', as counted by visual inspection, were not significantly different between the two groups. Computer analysis identified 12-16 and 6-15 'pulses' in the biatrial and bicaval group, respectively. Further analysis revealed that pulse amplitude, height and area were significantly higher in the biatrial compared to the bicaval group. CONCLUSION: It would appear that variability of circulating plasma levels of ANP is preserved despite complete or partial cardiac denervation, and so a neural mechanism does not appear to account for such variation.  (+info)

Basis for dosing time-dependent changes in the antiviral activity of interferon-alpha in mice. (4/75)

The influence of dosing time on the pharmacological effect (antiviral activity) of interferon-alpha (IFN-alpha), and the pharmacological and pharmacokinetic mechanisms, were investigated in ICR male mice under a 12-h light/dark cycle (lights on from 7:00 AM to 7:00 PM). 2'-5'Oligoadenylate synthetase activity in plasma at 24 h after IFN-alpha (10 MI.U./kg, i.v.) injection, as an index of antiviral activity, was significantly higher for injections given at 9:00 AM than for injections given at 9:00 PM (P <.05). The uptake of [(3)H]thymidine by lymphocytes after 24-h incubation with IFN-alpha, as an index of lymphocyte-stimulating effect, was significantly higher in cells obtained at 9:00 AM than in the cells obtained at 9:00 PM (P <.01). The number of receptors per cell and the expression of interferon-stimulated gene factor in lymphocytes after 24-h incubation with IFN-alpha were significantly higher in the cells obtained at 9:00 AM than at 9:00 PM (P <.05). A significant dosing time-dependent difference was demonstrated for the pharmacokinetic parameters of IFN-alpha, which showed higher clearance for injections given at 9:00 PM than for those at 9:00 AM (P <.05). The metabolism of IFN-alpha was significantly higher in kidney obtained at 9:00 PM than at 9:00 AM (P <.05). These findings support that choosing the most appropriate time of day for administration of IFN-alpha, associated with the rhythmicity of IFN-alpha receptor function and IFN-alpha pharmacokinetics, may increase the antiviral activity in experimental and clinical situations.  (+info)

Biological time and in vivo research: a field guide to pitfalls. (5/75)

Biological rhythmicity is a fundamental characteristic of all life forms, from primitive bacteria to man. The molecular biology, genetics, and the neurobiology of the biological clock(s) are being elucidated. Daily (circadian) statistically significant fluctuations occur in all of the normal biological variables studied in the experimental animal and the human. Many researchers, however, are not aware of the negative impact biological rhythmicity can have on experimental design and/or data interpretation. This article serves not as a review, but as a "field guide" to the pitfalls that can occur when research is performed in the absence of an understanding of biological rhythmicity. The major topics discussed are: 1) data transfer from the diurnally in-active/resting/sleeping lab animal to the diurnally active human, 2) frequency of sampling, 3) free-running vs. synchronization, 4) alternating periods of resistance and susceptibility, 5) phase shifting of a rhythm, 6) the assumption that one mean +/- S.E. from control animals can be "stretched" across an experimental time span, and 7) plotting data on an "hours after treatment" format vs. a "time of day" format. The hope is that by avoiding the pitfalls, biological time will become an ally in the endeavor to understand human biology.  (+info)

The temporal organization of life: the impact of multi-frequency non-linear biologic time structure upon the host-cancer balance. (6/75)

The current scientific paradigm, based upon an erroneous assumption of linear biologic reality and simple cause and effect relationships, has outlived its usefulness. In order to begin to turn the voluminous data the reductive process provides us with daily into meaningful understanding of life, it is essential to integrate these data within a complex, multi-frequency temporo-spatial framework. This rhythmic chronobiology more accurately depicts the life process, as well as its evolutionary and ongoing vital interaction with the pulsating cosmic resonance structure. Examples of the kinds of thinking and experiments necessary to exploit this new paradigm are provided.  (+info)

Diurnal variations of post-exercise parasympathetic nervous reactivation in different chronotypes. (7/75)

The purpose of this study was to investigate the diurnal variation and chronotype differences, i.e., in morning-types and evening-types, in post-exercise vagal reactivation. Twelve healthy male college students who were classified as morning-type (6) and evening-type (6), based on responses to a questionnaire, participated in this study. Postexercise vagal reactivation was assessed as the time constant of the beat-by-beat heart rate decrease for the first 30 sec after exercise (T30) at an intensity lower than the ventilatory threshold. The subjects performed 3-min cycle ergometer exercise at an intensity corresponding to 80% of the ventilatory threshold after a 1 min warm-up exercise in the morning (7:00 - 8:00) and evening (17:00 - 18:00) to obtain the T30. A significant interaction (chronotype-by-time) effect was found for T30. The morning value of the T30 in evening-type subjects was significantly larger than their evening value and the morning value in morning-type subjects. There was no significant interaction effect for heart rate and oxygen uptake during exercise. These results suggest that diurnal variation in post-exercise vagal reactivation is different between morning-type and evening-type, and post-exercise vagal reactivation in evening-type individuals is sluggish in the morning.  (+info)

The brain decade in debate: IV. Chronobiology. (8/75)

The present article is the adapted version of an electronic symposium organized by the Brazilian Society of Neuroscience and Behavior (SBNeC) which took place on June 14, 2000. The text is divided into three sections: I. The main issues, II. Chronodrugs, and III. Methods. The first section is dedicated to the perspectives of chronobiology for the next decade, with opinions about the trends of future research being emitted and discussed. The second section deals mostly with drugs acting or potentially acting on the organism's timing systems. In the third section there are considerations about relevant methodological issues concerning data analysis.  (+info)

Define biological time. biological time synonyms, biological time pronunciation, biological time translation, English dictionary definition of biological time. Noun 1. biological time - the time of various biological processes time - the continuum of experience in which events pass from the future through the...
Time and Our Bodies: Chronobiology What is Chronobiology? Chronobiology is the biology of time and internal biological clocks. Biological clocks range from oscillations found in nerve cells on the millisecond scale to oscillations in minutes, hours, days, and years. Chronobiology is a field of biology that examines timing processes, including periodic (cyclic) phenomena in living organisms, such as their adaptation to solar- and lunar-related rhythms. These cycles are known as biological rhythms
Chronobiology is the study of biological rhythms. It examines the effects of time on biological events and internal biological clocks. Over the past few decades, chronobiology has developed into a multidisciplinary field of interest in general medicine and psychiatry (1). Research on chronobiology is constantly growing and has contributed to the development of an interdisciplinary field of research. The Nobel Prize in Medicine in 2017 was awarded to scientists who investigated molecular mechanisms that control circadian rhythms.. The earths rotation and the daily light-dark or day-night cycle have had long and constant biological impacts on the earths living organisms. Over the long evolutionary process, organisms have developed clock-like structures. These biological clocks help organisms successfully perform their activities over a 24-h cycle. This adaptive ability predicts cyclic changes and allows behavioral and physiological harmonization. These endogenous clocks are useful because they ...
The science of chronobiology quantifies the time structure characterizing each physiologic variable, its genetically anchored and mostly environmentally synchronized chronome. Thereby, one gains new information and thus a new dimension to the care of ones health and the integrity of ones environment. The importance of chronobiologic information has been compared with the importance of the energy released by splitting the atom. This science ushers in a new era by allowing one to do more than asking only whether a time-unspecified measurement or a series of such casual measurements or even a series of systematic measurements covering a day or a week is too high or too low. Instead, one can rely on a rhythm-adjusted mean (the MESOR) that as compared to the arithmetic mean is more accurate and more precise. As a dividend (which may be more important under certain conditions than the best average value), chronobiology also pro- vides new information on the extent of predictable since rhythmic changes (the
In life, timing is everything. There is a new buzzword in cancer therapy, Chronobiology. Simply put, this means the study of clocklike stuff in living things. Or you can use the brainier definition, Chronobiology is the quantitative study of rhythmic temporal relationships in biological phenomena. Our bodies go through a day as if multiple clocks were hardwired into our brains, organs, and very cells telling us what to do and when to do it. In recent years scientists have just begun to understand these multiple rhythms of activity and rest that different systems in the body go through on a daily basis. These daily, or circadian, cycles repeat themselves every 24 hours. Cells dont grow at a constant rate; rather there are bursts of frantic cell division followed by rest spells. Hormones are not generated at a steady flow rate but have high points when they are dumped into the blood and low points throughout the day. All animals have built in clocks in not just their bodies but in their ...
Canadian Society for Chronobiology provides an online community to network for all people interested and working in chronobiology in Canada and canadian chronobiologists presently outside of Canada.
Canadian Society for Chronobiology provides an online community to network for all people interested and working in chronobiology in Canada and canadian chronobiologists presently outside of Canada.
This investigation aimed to review the initial state of electrophysiological parameters that may predict the development of heart rhythm disorders in spontaneously-breathing pentobarbital-, ketamine-xylazine- and zoletil-anesthetized rats. These data will contribute to building a wider framework for a chronobiological perspective on the dependence of these parameters on the light-dark (LD) cycle under in vivo conditions. The study was performed using female Wistar rats, which were adapted to a 12 h LD cycle. Parameters evaluated included RR, PQ, QT, QTc intervals, the QRS complex and the amplitudes of P, R and T waves. The longest RR and QT interval duration occurred after the administration of ketamine-xylazine anesthesia in both the light period and the dark period. The longest PQ and QTc interval durations occurred under zoletil anesthesia in the light period. It is concluded that from a chronobiological perspective, the most significant electrophysiological myocardial susceptibility toward ...
Neurology: Chronobiology Differs Between Men and Women with Cluster Headache, Clinical Phenotype is organized by American Academy of Neurology (AAN) and will be held during Mar 14, 2017 - Mar 14, 2020.
AAPD Career Center: , Pullman, Washington , Postdoctoral Positions - Drug/Alcohol Addiction, Stress, Emotion, Chronobiology at Washignton State University, Department of Integrative Physiology and Neuroscience
What is the best time of day to train? And the one in which our brain is more concentrated? When it is better to apply creams and to dedicate oneself to beauty treatments and when to have a snack? Chronobiology helps you to. ...
Sports Chronobiology, An Issue of Clinics in Sports Medicine, 1e (The Clinics: Orthopedics) by Postolache MD, Teodor T. and a great selection of similar Used, New and Collectible Books available now at AbeBooks.com.
Available free of charge on the Internet 1. Cornélissen G, Halberg F. Introduction to Chronobiology. Medtronic Chronobiology Seminar #7. Minneapolis: Medtronic Inc.; April 1994, 52 pp. (Library of Congress Catalog Card #94-060580; URL http://www.msi.umn.edu/~halberg/) 2. Halberg F, Cornélissen G, International Womb-to-Tomb Chronome Initiative Group: Resolution from a meeting of the International Society for Research on Civilization Diseases and the Environment (New SIRMCE Confederation), Brussels, Belgium, March 17-18, 1995: Fairy tale or reality ? Medtronic Chronobiology Seminar #8, April 1995. Minneapolis: Medtronic Inc.; 1995. 12 pp. text, 18 figures. URL http://www.msi.umn.edu/~halberg/resol.html - - - Other: 3. Ahlgren A, Halberg F. Cycles of Nature: An Introduction to Biological Rhythms. Washington DC: National Science Teachers Association; 1990. 87 pp. 4. Ajuriaguerra J de (ed). Symposium Bel-Air III. Cycles biologiques et psychiatrie / publié sous la direction du professeur J. de ...
A. External cues (other than the entraining stimulus) that might provide timing stimuli to the animal should be avoided. This might seem axiomatic. For example, the most important entraining stimulus for mammals is light. As a result, most circadian biologists would not accept any phenomenon as circadian in nature unless it was demonstrated in continuous darkness (DD).. Nevertheless, this standard is often not observed. For example in the original studies demonstrating food entrainment (see review by Stephan [3]), animals were permitted to remain on a light-dark (LD) cycle. While the use of LD insured that the light entrained rhythm and the food entrained rhythm would remain temporally separated, the light also provides a temporal cue for food presentation. A number of recent food entrainment studies including those by Mistlberger in which he has done dorsomedial hypothalamic (DMH) lesions [4, 5], have continued to be performed only under LD. However, if animals are entrained under LD, and food ...
abstract = {Under sleep loss, vigilance is reduced and attentional failures emerge progressively. It becomes difficult to maintain stable performance over time, leading to growing performance variability (i.e., state instability) in an individual and among subjects. Task duration plays a major role in the maintenance of stable vigilance levels, such that the longer the task, the more likely state instability will be observed. Vulnerability to sleep-loss-dependent performance decrements is highly individual and is also modulated by a polymorphism in the human clock gene PERIOD3 (PER3). By combining two different protocols, we manipulated sleep-wake history by once extending wakefulness for 40 h (high sleep pressure condition) and once by imposing a short sleep-wake cycle by alternating 160 min of wakefulness and 80 min naps (low sleep pressure condition) in a within-subject design. We observed that homozygous carriers of the long repeat allele of PER3 (PER35/5) experienced a greater time-on-task ...
The evolving science of Chronobiology demonstrates that all body systems have a biorhythm or circadian rhythm that serve as physiological indicators that have a timing effect on specific systems metabolism. Nutrients and drugs give a more desired effect when given at a time that best matches this metabolism. This is called Chronobiology and is generating clinical studies that demonstrate certain drugs have a significantly different result if given in the AM as opposed to the PM. For example, since the liver is regenerating itself on a daily circadian basis in the early morning, antioxidants (i.e. Glutathione, N-Acetylcysteine) to help strengthen and support the liver are given in the IDNutrition™ PM packet. Because the pain of Osteoarthritis is generally late in the afternoon, the Joint and Inflammatory Support formulas are optimal if given in the IDNutrition™ AM packet. IDNutrition™ is delivering the optimal dose at the optimal time of day.. ...
The evolving science of Chronobiology demonstrates that all body systems have a biorhythm or circadian rhythm that serve as physiological indicators that have a timing effect on specific systems metabolism. Nutrients and drugs give a more desired effect when given at a time that best matches this metabolism. This is called Chronobiology and is generating clinical studies that demonstrate certain drugs have a significantly different result if given in the AM as opposed to the PM. For example, since the liver is regenerating itself on a daily circadian basis in the early morning, antioxidants (i.e. Glutathione, N-Acetylcysteine) to help strengthen and support the liver are given in the IDNutrition™ PM packet. Because the pain of Osteoarthritis is generally late in the afternoon, the Joint and Inflammatory Support formulas are optimal if given in the IDNutrition™ AM packet. IDNutrition™ is delivering the optimal dose at the optimal time of day.. ...
The evolving science of Chronobiology demonstrates that all body systems have a biorhythm or circadian rhythm that serve as physiological indicators that have a timing effect on specific systems metabolism. Nutrients and drugs give a more desired effect when given at a time that best matches this metabolism. This is called Chronobiology and is generating clinical studies that demonstrate certain drugs have a significantly different result if given in the AM as opposed to the PM. For example, since the liver is regenerating itself on a daily circadian basis in the early morning, antioxidants (i.e. Glutathione, N-Acetylcysteine) to help strengthen and support the liver are given in the IDNutrition™ PM packet. Because the pain of Osteoarthritis is generally late in the afternoon, the Joint and Inflammatory Support formulas are optimal if given in the IDNutrition™ AM packet. IDNutrition™ is delivering the optimal dose at the optimal time of day.. ...
How is the sleep/wake cycle maintained in plants? New research about plant proteins may help us to better understand the human circadian rhythm and human disease.
Electrical signals sent in the brain. They can be detected by electrodes placed on the scalp. Examples of brain waves: alpha waves with a frequency of 8-13 cycles per second that are produced when a person is relaxed but awake; beta waves with a frequency of greater than 12 cycles per second that are produced when a person is awake and alert; theta waves with a frequency of 4-7 cycles per second that are produced during light sleep; delta waves with a high amplitude and a frequency of less than 4 cycles per second that are produced during deep sleep.. Bright-light therapy: ...
Darsaud A, Bourdon L, Mercier S, Chapotot F, Bouteille B, Cespuglio R, Buguet A. Twenty-four-hour disruption of the sleep-wake cycle and sleep-onset REM-like episodes in a rat model of African trypanosomiasis. Sleep. 2004 Feb 01; 27(1):42-6 ...
The applicant has a funded research program in medical chronoblology, is Associate Director of an NIH funded Harvard-wide Training Program in Sleep, Circadian &...
PubMed comprises more than 30 million citations for biomedical literature from MEDLINE, life science journals, and online books. Citations may include links to full-text content from PubMed Central and publisher web sites.
What is the best time of day to train? And the one in which our brain is more concentrated? When it is better to apply creams and to dedicate oneself to beauty
Medichron Publications, LLC. 1000 N. West Street. Suite 1200 PMB #1896. Wilmington, DE 19801. Ph: 855-333-5332. Fax: 855-818-1461 ...
Medichron Publications LLC is a publishing company for the online health and medical community. The company specializes in research in the field of chronobiology and news pertaining to a chronobiological approach to health. ...
Unlock the biological rhythm fat burning action of LPGs Body Shaping Gel to promote volume loss Dubai, UAE, 12th October 2017: The way our body works is simply amazing. Imagine, almost every organs in our body has a circadian clock ev
The suprachiasmatic nuclei (SCN) of the hypothalamus are the site of the body clock.29 These clusters of cells are linked to the eyes via the direct retinohypothalamic tract and receive a humoral input from the pineal gland, which secretes the hormone melatonin during the hours of darkness. Melatonin has many effects throughout the body, reviewed in an exercise physiology context by Atkinson et al.30 One of melatonins properties is that it is a potent vasodilator and so promotes heat loss. The evening fall of body temperature is caused by the body clock and the onset of melatonin secretion; the morning rise in body temperature is due to the combined effects of the body clock and an inhibition of melatonin secretion (secretion being suppressed by bright light). Melatonin induces drowsiness through its effect upon body temperature and also via a direct central action.. The rhythmic neural and humoral inputs to the SCN (showing a period of 24 h) enable the phase of the body clock to be adjusted to ...
The primary objective of the present study is to examine whether the combination of the antidepressant duloxetine and chronotherapeutic methods (including sleep deprivation, light therapy, and maintaining a regular sleep-wake rhythm) in patient with major depression, will induce an immediate improvement from depression and whether this antidepressive effect will be maintained in the long term (29 weeks). Patient will be randomised to the above mentioned treatment or to an active group receiving exercise ...
Ayurveda talks about biological time, which is the movement of life.. Dosha Kala means the times of each dosha. The bodys biological clock is regulated by the doshas. The time of maximum activity of kapha is during morning and evening from about 6 to 10 a.m. and 6 to 10 p.m. The pitta period is during midday and midnight, from about 10 a.m. to 2 p.m. and 10 p.m. to 2 a.m., while vata hours are dawn and dusk, from about 2 to 6 a.m. and p.m. Thus a pitta-type disease such as ulcers may cause the most discomfort late at night in pitta time. The reverse is also true, in the sense that experiencing a sharp pain in the stomach region late at night may signify ulcers or another pitta disorder.. Avastha Paka Kala means the time for the different stages of digestion, which is also biological time. When you eat food, it passes through various stages of digestion, each one governed primarily by one taste and a specific dosha. To digest a major meal takes approximately six hours or more. For the first ...
What mechanisms turn down (or off) cell metabolism and other cell functions? How does an animal such as an opossum know when to activate mechanisms for slowing or stopping tissue and organ functions? These capabilities raise important questions, which Peter Hochachka and Michael Guppy explore in this seminal new book. This is a pioneering book of great use to biomedical/clinical researchers and to biologists, biochemists, and physiologists generally.
Tsinkalovsky O, Filipski E, Rosenlund B, Sothern RB, Eiken HG, Wu MW, Claustrat B, Bayer J, L?vi F, Laerum OD. Circadian expression of clock genes in purified hematopoietic stem cells is developmentally regulated in mouse bone marrow. Exp Hematol 2006; 34(9): 1248-1260.. Halberg F, Cornèlissen, Kanabrocki E, Sothern RB, Haus E, Zinker S, Jozsa R, Pan W, Tarquini R, Perfetto F, Maggioni C, Bakken EE. Peptide chronomics. In: The Handbook of Biologically Active Peptides, Kastin AJ, ed.. Perlman JL, Delany CM, Sothern RB, Skolnick KA, Murray D, Jacobs RW, Shue JL, Kaplan E, Friedman NC, Nemchausky BA, Ryan MD, Kanabrocki EL. Relationships between 24h observations in intraocular pressure vs blood pressure, heart rate, nitric oxide and age in the Medical Chronobiology Aging Project. Clinica Ter 2007; (158(1): 31-4.. Tsinkalovsky O, Smaaland R, Rosenlund B, Sothern RB, Hirt A, Eiken HG, Steine S, Badiee A, Foss Abrahamsen J, Laerum OD. Circadian variations of clock gene expression in CD34+ progenitor ...
Chrono refers to time and biology refers to the study of life. Chronobiology thus denotes a lifestyle according to specific changes in time, like the day/night cycle, which are innate to your body. Human beings have 2 types of internal clocks that set the preferred pace for our biological rhythms. These clocks subconsciously tell you when to eat, sleep, regulate temperature, produce hormones, and even move your body.. The first internal timekeeper, known ast the Central clock, is related to the light/dark cycle. Through the activity in your suprachiasmatic nucleus found in your hypothalamus, your body aligns with the earths rotation around the sun to stay on a regular 24-hour cycle.. The second timekeeper, the Peripheral Clocks, are found in each of the tissues within your body, e.g. digestive organs, pancreas, muscles, adrenals, kidneys, etc. Ideally, these timekeepers prefer your tissues to operate in a certain way at a certain time. For example, your digestive organs may work best resting ...
Arbogast, Helmut; Hallek, M.; Arbogast, B. und Szinicz, L. (1987): Circadian variation of the atropine effect on the running performance of mice treated with 1,2,2-trimethylpropylmethylphosphonofluoridate (soman). 2. annual meeting of the European Society for Chronobiology, 1986, Marburg. [PDF, 969kB] ...
As chief of the division of sleep and chronobiology in the department of psychiatry at the University of Pennsylvania School of Medicine, David F. Dinges, Ph.D., focuses on ways sleep and the endogenous circadian pacemaker interact to control wakefulness and waking neurobehavioral functions such as physiological alertness, attention, cognitive performance, fatigue, mood, neuroendocrine profiles, immune responses and health. In an interview with Psychiatric Times, Dinges discussed neurobehavioral consequences of sleep loss, factors that impair sleeping, the pervasiveness of sleepiness and new ways to manage sleepiness. 1
The clock in the SCN is the major controller overall for timing, but when we face environmental mismatches that specifically involve the use of any particle/waveform tied to QED, it increases the likelihood that we can have desynchronization of the SCN from the peripheral clocks. It appears the brain has a dual timing mechanism. It has the older analog clock that responds in a graded fashion to one photon of light of many. The SCN and Pineal gland seem to be big players in the analog system. The retina and visual apparatus are the newer part of the clock called the digital system. They use a binary code of off and on with light. The action potential of the optic nerve is all or none. When light is present at the human eye ROS and ELF-UV light is released from cells. (van Wijk). When we have desynchronization of the SCN from the peripheral organ clocks, we call this a phase shift in chronobiology. This is how we lose track of Quantum time (small time) that I mentioned in EMF 6. Moreover, this ...
We approach these questions using cell culture models as well as mouse models of the innate immune system. One of our projects funded by the DFG addresses the circadian clock in macrophages: what are the mechanisms of immune regulation in these cells and what are the pathophysiological implications? Another project started just recently deals with the circadian clock in the host defense against malaria. This project is funded by the Human Frontier Science Program (HFSP) and is part of an international and interdisciplinary research effort, elucidating the evolutionary ecology of chronobiology in host-parasite interactions. ...
Ronald J. Konopka (1947-2015) was an American geneticist who studied chronobiology. He made his most notable contribution to the field while working with Drosophila in the lab of Seymour Benzer at the California Institute of Technology. During this work, Konopka discovered the period (per) gene, which controls the period of circadian rhythms. Ron Konopka received his Ph.D. in Biology from the California Institute of Technology in 1972. In 1975, following his discovery of the period mutants, Konopka was awarded a faculty position at the California Institute of Technology. While there, Konopkas colleagues were critical of his reluctance to publish his work on the period gene, and Konopka was denied tenure. After his stay at Caltech, Konopka accepted a position at Clarkson University but was again denied tenure and subsequently exited the field of science. Konopkas career, interwoven with the work of his mentor, Seymour Benzer, and the other scientists working in Benzers lab is narrated in Time, ...
You can find typical pharmaceuticals for despairing which can be satisfactorily used by human being administrations experts. A simple amount of folks adjusting to shed have confidence in on a daily basis dont desire to depend on created agreement energizer meds suitable for them by pros for help. Bundles of individuals who experience this matter are becoming a deal with on constant options for discouragement when seeing the chance as on pharmaceutical for a lifetime. Regularly they will rather find out typical responses for wretchedness that can enable them to handle the depressive problem they come across. That is one of the regular responses for bitterness that may be been the subject of diverse consistent tests. These studies do concur that a few details useful have already been amazing regardless of the way not certain. Numerous occasionally broadcast that the drug Prozac isnt much the counterpart as, or perhaps a lot better than anything at all the results they get from this. They ...
V. Sheeba, M. Nihal, S. J. Mathew, N. M. Swamy, L. Bandhopadhyay, M. K. Chandrashekaran, A. Joshi and V. K. Sharma, Does the difference in the timing of eclosion of the fruit fly Drosophila melanogaster reflect differences in the circadian organization?, Chronobiology International 18, 601 - 612 (2001 ...
V. Sheeba, M. Nihal, S. J. Mathew, N. M. Swamy, L. Bandhopadhyay, M. K. Chandrashekaran, A. Joshi and V. K. Sharma, Does the difference in the timing of eclosion of the fruit fly Drosophila melanogaster reflect differences in the circadian organization?, Chronobiology International 18, 601 - 612 (2001 ...
Chiang CD, Lewis CL, Wright MD, Agapova S, Akers B, Azad TD, Banerjee K, Carrera P, Chen A, Chen J, Chi X, Chiou J, Cooper J, Czurylo M, Downs C, Ebstein SY, Fahey PG, Goldman JW, Grieff A, Hsiung S, Hu R, Huang Y, Kapuria A, Li K, Marcu I, Moore SH, Moseley AC, Nauman N, Ness KM, Ngai DM, Panzer A, Peters P, Qin EY, Sadhu S, Sariol A, Schellhase A, Schoer MB, Steinberg M, Surick G, Tsai CA, Underwood K, Wang A, Wang MH, Wang VM, Westrich D, Yockey LJ, Zhang L, Herzog ED. 2012. Learning chronobiology by improving wikipedia. J Biol Rhythms 27(4):333-6. PubMed abstract & fulltext for subscribers ...
Its a disorienting experience to be awakened by a phone call while curled up for a good nights sleep. Hearing muffled fumbling for the phone followed by a groggy greeting, the caller usually asks, Oh, were you sleeping?. My most common answer is, I dont know. No. Im not sure. In that state of confusion, the last thing Im capable of is analyzing the inner workings of my body to understand if I am awake or asleep. Luckily, there is a lot of science to explain what it really means to be asleep, and what happens to get us there.. There is no universally agreed-upon definition because falling asleep is not a split-second occurrence, not an abrupt switch from awake to asleep. Rather, it is a gradual progression of stages in which body and brain activity changes.. Sleep onset is sort of a reflection of your brain switching from one way of thinking to another way of thinking, says Scott Campbell of the Cornell Medical School Laboratory of Human Chronobiology. Besides brain activity, sleep ...
Statement of Need Recent catastrophic bus and train accidents in the Bronx, New York, have highlighted the importance of understanding the negative effects of circadian sleep-wake disruption in shift workers, especially those in positions of responsibility for public safety, including bus and train operators and healthcare workers. Scientific evidence exists that manipulations by employers and employees can reduce the risk of errors due to sleep deprivation, so long as there is an understanding of underlying chronobiologic principles and the corresponding therapeutic options that can reduce and improve circadian disruption.. Activity Goal This program is designed to present the current understanding of chronobiology and the effects upon health and disease and to highlight the importance of circadian disruption on shift workers performances and productivity. Appropriate interventions can be undertaken by employers and employees to mitigate the effects of circadian disruption by manipulating ...
The physiological pattern of the sleep-wake cycle is influenced by external synchronizing agents such as light and social patterns, creating variations in each individuals preferred active and sleep periods. Because of the demands of a 24-h working society, it may be imperative for many people to adapt their sleep patterns (physiologically) to their daily activities. Therefore, we analyzed the difference in sleep patterns and chronobiological parameters between an essentially rural farming and urban small-town populations. We studied 5942 subjects (women, 67.1%, N = 3985; mean age, 44.3 ± 13.1 years), from which the chronotype, circadian sleep pattern, and period of light exposure were collected using the Munich Chronotype Questionnaire (MCTQ). A structured questionnaire was also made for collection of social and demographic information. Compared with the urban population (N = 3427, 57.7%), the rural population (N = 2515, 42.3%) presented a more predominantly early sleep pattern, as determined ...
Chronotypes have been associated with psychopathology. The eveningness chronotype has been consistently linked with depressed states or depressive disorder, but the underlying mechanism remains unclear. Prior studies have shown associations between chronotype and personality traits that are linked t …
Bile acids (BAs), the most important endogenous and signaling molecules regulate the target transporters and enzymes at transcriptional level, participate in a wide variety of processes throughout the entire gastrointestinal tract to orchestrate homeostasis in vivo. BAs and their metabolism and transportation appear to follow the clear circadian rhythms, and they are recently proposed also as the potential chronobiological signals that can affect the molecular clock mechanism. Cholecystectomy are believed to affect the circadian rhythms of BAs and the relevant enterohepatic transporters and enzymes systems and their regulatory signaling pathways, for the reason that the circadian cycle of gallbladder filling and emptying play a pivotal role in controlling the flow of bile into the intestine and the enterohepatic circulation of BAs ...
Chronobiological studies of prokaryotic organisms have generally lagged far behind the study of endogenous circadian clocks in eukaryotes, in which such systems are essentially ubiquitous. However, despite only being studied during the past 25 years, cyanobacteria have become important model organis …
The appropriateness of shift systems and individual coping techniques were discussed by a panel composed of members who have conducted research aimed at understanding how intervention techniques interact with performance and recovery of function. Each of the following topics was addressed by one of the members of this panel: manipulation of sleepiness by changing chronobiological napping, schedule
The challenge of aging and supporting active long healthy life of a human is treated herein in the context of the chronobiological theory of bio-system stability. An increase in the energetic efficiency of the structural regulation in the feedback and adapting process of a bio-system results in a reduction of its homeostatic capacity and inhibition of its bio-rhythms ...
Chronobiology - field of biology that examines periodic (cyclic) phenomena in living organisms and their adaptation to solar- ... Theoretical Biology - the mathematical modeling of biological phenomena. Systems biology - computational modeling of biological ...
The two animal experiments were entitled Chronobiology of Pocket Mice and Circadian Rhythm in Vinegar Gnats. Both experiments ... additional information about fluid distribution and fluid balance to get a better understanding of the fluid shift phenomena. ...
... and wildlife Chronobiology - field of biology that examines periodic (cyclic) phenomena in living organisms and their ... and wildlife History of chronobiology - history of the field of biology that examines periodic (cyclic) phenomena in living ... History of quantum physics - history of the branch of physics dealing with physical phenomena where the action is on the order ... Quantum mechanics - branch of physics dealing with physical phenomena where the action is on the order of the Planck constant. ...
New models, such as the soliton model attempt to explain these phenomena, but are less developed than older models and have yet ... Also improbable possibility of modelling of local chronobiology mechanisms.. *Modern views regarding of the role of the ... The shortcomings of the model is its inability to reflect properly the following phenomena:. *The edge emphasizing property of ...
... chronobiology), the alignment of a circadian system's period and phase to the period and phase of an external rhythm ... a phenomenon of the atmosphere Entrainment (physical geography), the process by which surface sediment is incorporated into a ...
... is a field of biology that examines timing processes, including periodic (cyclic) phenomena in living organisms, ... "Father of Chronobiology" The University of Virginia offers an online tutorial on chronobiology. See the Science Museum of ... Chronobiology comes from the ancient Greek χρόνος (chrónos, meaning "time"), and biology, which pertains to the study, or ... Chronobiology studies variations of the timing and duration of biological activity in living organisms which occur for many ...
A number of explanations of the phenomenon are discussed in the media, of varying degree of credibility. Usage of plastic bags ... Ozone holes may also lead to abnormal chronobiology in cockroaches. Internal competitions between cockroaches may decrease the ... Usage of modern construction materials may also contribute to the phenomenon; the population of cockroaches might have been ... The depopulation of cockroaches may be exaggerated, or this phenomenon may be temporary or cyclic. ...
In: Trends in Chronobiology, ed. Hekkens W, Th JM, Jerkhof GA and Rhietveld WJ, Pergamon Press, Oxford and New York, pp. 149- ... The term Aschoff used for this phenomenon is "arousal" due to non-photic zeitgebers. Data from experimental assays show a ... Together with Erwin Bünning and Colin Pittendrigh, he is considered to be a co-founder of the field of chronobiology. Aschoff's ... Aschoff's work in the field of chronobiology introduced the idea that shifting one's light-dark cycle can result in harmful ...
Rosenthal and his colleagues then documented the phenomenon of SAD in a placebo-controlled study utilizing light therapy.[8][9] ... Chronobiology International: The Journal of Biological & Medical Rhythm Research. 31 (4): 523-531. doi:10.3109/07420528.2013. ...
Check date values in: ,date= (help) Galileo project entry SEDS Biography At the dawn of chronobiology Biological Clocks - ... and whether in doing so one could reverse the order of the phenomena of true day & true night." These results may have gone ... founder of modern chronobiology, Colin Pittendrigh, recognised the work of Jean-Jacques d'Ortous de Mairan. A video showing ... Chronobiology International. 17 (4): 433-451. doi:10.1081/CBI-100101056. PMID 10908122. S2CID 8035037. Retrieved 12 April 2012 ...
It was such a critical method for observing circadian rhythms in plants that the phenomena was dubbed the "hands of the ... Her work on circadian rhythms would define her career and markedly impact the field of chronobiology. In 1968, after completion ... At Yale, Satter continued her research on plant chronobiology by studying control of leaf movements. Her work demonstrated that ... and gained international acclaim for her work on chronobiology. She also stayed active with her husband as they traveled the ...
McMahon and Block devised a model explaining these phenomena: light during the day does not have much of an effect on the ... McMahon has contributed several important discoveries to the field of chronobiology and vision. His research focuses on ... Block chronobiology Society for Neuroscience Vanderbilt University John E. Dowling "Douglas G. McMahon, Ph.D." vanderbilt.edu. ... marking an exciting time in the young field of chronobiology. McMahon contributed to the understanding of retinal ...
Gfeller, Kate E. (2008). "Music: A human phenomenon and therapeutic tool". In Davis, William B.; Gfeller, Kate E.; Thaut, ... Affective neuroscience Art therapy Biomusicology Chronobiology Eloise (psychiatric hospital) Embodied music cognition ... Sacks had a genuine interest in trying to help people affected with neurological disorders and other phenomena associated with ...
... (born May 4, 1953) is a professor of chronobiology at the Institute of Medical Psychology at Ludwig-Maximilian ... He observed in the period of spore production (conidia bands) the phenomenon of masking, an unexpected effect on circadian ... Kantermann, T; Roenneberg, T (2009). "Is light-at-night a health risk factor or a health risk predictor?". Chronobiology ... and from 2010 to 2012 was the member at large of the Society for Research of Biological Rhythms Aside from human chronobiology ...
In chronobiology, a circasemidian rhythm is a physiological arousal cycle that peaks twice in a 24-hour day. Numerous studies ... Eastman C. "Are separate temperature and activity oscillators necessary to explain the phenomena of human circadian rhythms?" ... Int J Chronobiology 2:175-180, 1974. - Kogi K, Ohta T. "Incidence of near accidental drowsing in locomotive driving during a ...
Seasonal variation in human birth rate has been found to be a nearly universal phenomenon. Also, birth seasonality has been ... Chronobiology International. 26 (8): 1660-1672. doi:10.3109/07420520903534484. PMID 20030548. Boland, Mary Regina; Zachary ...
... study of phenomena Philematology - act or study of kissing Phillumeny - collecting of matchbox labels Philology - study of ... political economy Chronobiology - study of biological rhythms Chrysology - study of precious metals Ciselure - art of chasing ... study of physics of biological phenomena Biopsychology - application of the science of biology to the study of psychology ... study of celestial bodies and phenomena Astrophysics - study of behaviour of interstellar matter Astroseismology - study of ...
In addition, the phenomenon of energy flow occurs in cells in processes that are part of the function known as metabolism. ... and the molecular and chemical interactions that occur within a living cell Chronobiology - the study of periodic events in ... A model organism is a species that is extensively studied to understand particular biological phenomena, with the expectation ... the conditions and laws under which these phenomena occur, and the causes through which they have been affected. The science ...
Its spatiotemporal variations lead to various measurable solar phenomena. Other solar phenomena are closely related to the ... The impact of the solar cycle on living organisms has been investigated (see chronobiology). Some researchers claim to have ... These eruptive phenomena can have a significant impact on Earth's upper atmosphere and space environment, and are the primary ... This cycle has been observed for centuries by changes in the Sun's appearance and by terrestrial phenomena such as auroras. ...
De Candolle also made contributions to the field of chronobiology. Building upon earlier work on plant circadian leaf movements ... a phenomenon now known as convergent evolution. During his work with plants, de Candolle noticed that plant leaf movements ...
It is a rare phenomenon for a self-funding scientist to form a bona fide IRO without traditional means of financial support. ... Chronobiology International. 24 (3): 521-537. doi:10.1080/07420520701420717. PMID 17612949.. ...
Chronobiology Solar variation War cycles Revolutionary wave List of astronomical cycles Edward R. Dewey Nikolai Kondratiev ... having proved that the Sun's activity has an effect on many terrestrial phenomena. His works, mostly published in Russian, are ...
Chronobiology international 14 (5): 531-536 Solé, R., O. Miramontes y Goodwin BC. (1993) "Order and chaos in ant societies". J ... He suggested that nonlinear phenomena and the fundamental laws defining their behavior were essential to understand biology and ... 1997, "Temporal organization and disorganization in organisms". in: Chronobiology International 14 (5): 531-536 1997 Goodwin BC ... thus not taking into account dissipative effects that are required in a realistic approach to regulatory phenomena in biology. ...
His work and ideas ran counter to the prevailing trend in chronobiology at the time, which was focused on the development of ... The Biological Clock Phenomenon: Exogenous Timing Hypothesis. J. interdiscipl. Cycle Res., Vol. 14, number 2, pp. 137·162. Webb ... F. A. Brown, Jr.· The Biological Clock Phenomenon: Exogenous Timing Hypothesis. J. interdiscipl. Cycle Res., 1983,Vol. 14, ... The "Clocks" Timing Biological Rhythms: Recent discoveries suggest that the mysterious biological clock phenomenon results from ...
She suffered a stroke on 30 June 1989 while traveling to the Gordon Conference on Chronobiology, while visiting the Marine ... She continued her research into circadian rhythms for the rest of her career, publishing her monograph Rhythmic Phenomena in ... M., Sweeney, Beatrice (1987). Rhythmic phenomena in plants (2nd ed.). San Diego: Academic Press. doi:10.1016/C2013-0-11566-8. ...
Bünning received many honors in his life both in the field of chronobiology and botany. In 1960, he chaired in the 25th Cold ... This phenomenon, however, was not researched further until 1729 when Jean-Jacques d'Ortous de Mairan provided experimental data ... His 1958 work, "The Physiological Clock", was hailed as a milestone in the field of chronobiology, and his later works on plant ... His most famous contributions were to the field of chronobiology, where he proposed a model for the endogenous circadian ...
Researchers in the field of chronobiology look for objective markers by which to measure the chronotype spectrum. Paine et al. ... referred to as the circadian system that regulate physiological phenomena (hormone levels, metabolic function, body temperature ... Chronobiology International, 31, 911-916. Allee, Melody; Anderson, Sarah; Bloom, Myra; Jost, Scarlet; Keating III, Donald; Lang ...
Rosenthal and his colleagues then documented the phenomenon of SAD in a placebo-controlled study utilizing light therapy. A ... Chronobiology International. 30 (9): 1101-7. doi:10.3109/07420528.2013.800091. PMC 5225270. PMID 23931033. Nesse RM, Williams ... Chronobiology International. 31 (4): 523-31. doi:10.3109/07420528.2013.874355. PMID 24397301. S2CID 22428871. Ivry, Sara ( ...
Wiglusz, MS; Landowski, J; Cubała, WJ; Agius, M (September 2015). "Overlapping phenomena of bipolar disorder and epilepsy--a ... Chronobiology International. 28 (9): 825-33. doi:10.3109/07420528.2011.609951. PMID 22080789. McCarthy, MJ; Nievergelt, CM; ...
Chronobiology Computational biology Cryobiology Developmental biology Embryology Teratology Ecology (outline) Agroecology ... engineering Nuclear engineering Food engineering Process engineering Reaction engineering Thermodynamics Transport phenomena ...
... collaborate closely with experimentalists in analyzing novel data and synthesizing new models of biological phenomena. ...
Sacks had a genuine interest in trying to help people affected with neurological disorders and other phenomena associated with ... Chronobiology. *Eloise (psychiatric hospital). *Embodied music cognition. *Expressive therapies. *Melodic intonation therapy ...
Although many studies still hold a reductionist stance looking for the neurobiological basis of cognitive phenomena, recent ... and Richard Caton found electrical phenomena in the cerebral hemispheres of rabbits and monkeys. ...
However, when confronted with totally unexpected phenomena, such as the first evidence for invisible radiation, experimental ... This means that it aims to describe phenomena of the past and reconstruct their causes.[5] Hence it has three main elements: ... description of the phenomena; developing a general theory about the causes of various types of change; and applying those ... which is often said to work by conducting experiments to disprove hypotheses about the workings and causes of natural phenomena ...
... of measuring the heritability of traits in the false expectation that somehow the genetic nature of psychological phenomena ...
His "The Phenomenon of Life" (New York, 1966) sets out boldly to offer an "existential interpretation of biological facts", ... Holism is the view that emphasizes higher-level processes, phenomena at a larger level that occur due to the pattern of ...
... study of correlations of neural phenomena with subjective experiences of spirituality and hypotheses to explain these phenomena ...
This phenomenon is exploited when a person claims to be only a quarter of their actual age, by counting their leap-year ...
However, when confronted with totally unexpected phenomena, such as the first evidence for invisible radiation, experimental ... Whewell] distinguished three tasks for such a historical science (1837 [...]): ' the Description of the facts and phenomena; - ... description of past phenomena; developing a general theory about the causes of various types of change; and applying those ... paleontology aims to describe phenomena of the past and to reconstruct their causes.[5] Hence it has three main elements: ...
... cultural neuroscience aims to explain a given mental phenomenon in terms of a synergistic product of mental, neural and genetic ...
... multiple hypotheses exist to explain this phenomenon. The cDNA hypothesis involves the use of messenger RNA (mRNAs) to ... "The theory of symbiogenesis is a theory of selection relying on the phenomenon of symbiosis."[13] ...
The Consensus Connectome Dynamics (CCD) is a remarkable phenomenon that was discovered by continuously decreasing the minimum ...
"The theory of symbiogenesis is a theory of selection relying on the phenomenon of symbiosis."[12] These theories were initially ... multiple hypotheses exist to explain this phenomenon. The cDNA hypothesis involves the use of messenger RNA (mRNAs) to ...
phenomena. *Dream. *Exploding head syndrome. *False awakening. *Hypnagogia / Sleep onset. *Hypnic jerk ...
Bernard, Claude (1878). Lectures on the Phenomena of Life Common to Animals and Plants. Springfield: Thomas (published 1974).. ... work incessantly to produce the phenomena that constitute the life of the individual." In more differentiated organisms, the ...
The cell is also considered to be the basic unit in many pathological processes.[24] In addition, the phenomenon of energy flow ... Chronobiology - the study of periodic events in living systems. *Cognitive biology - the study of cognition ... Theoretical biology - the branch of biology that employs abstractions and mathematical models to explain biological phenomena ... Quantum biology - the study of the role of quantum phenomena in biological processes ...
... which connects phenomena that arise simultaneously; 3) homogeneity, explaining the homogenous flow that evokes phenomena ... Here Aristotle insists that all four modes of explanation are called for in the study of natural phenomena, and that the job of ... Karma is the causality principle focusing on 1)causes, 2)actions, 3)effects, where it is the mind's phenomena that guide the ... It is specifically characteristic of quantal phenomena that observations defined by incompatible variables always involve ...
This phenomenon, known as "Mendel's second law" or the "law of independent assortment," means that the alleles of different ... Although epigenetic features are generally dynamic over the course of development, some, like the phenomenon of paramutation, ... In 1928, Frederick Griffith discovered the phenomenon of transformation (see Griffith's experiment): dead bacteria could ... a phenomenon known as transformation.[54] These processes result in horizontal gene transfer, transmitting fragments of genetic ...
First, some fields of evolutionary research try to explain phenomena that were poorly accounted for in the modern evolutionary ... Today, evolutionary biologists try to determine the genetic architecture of interesting evolutionary phenomena such as ...
This phenomenon can cause a condition in which an individual has a greater difficulty seeing in low-illumination areas, even ... Chronobiology International. 27 (2): 251-264. doi:10.3109/07420521003664213. PMID 20370468.. CS1 maint: Multiple names: authors ...
"Nature" can refer to the phenomena of the physical world, and also to life in general. The study of nature is a large, if not ... Although humans are part of nature, human activity is often understood as a separate category from other natural phenomena. ...
Usually, a study aims to understand an effect of a phenomenon over a population. In biology, a population is defined as all the ... and is usually based on a permanent knowledge about the topic or an obvious occurrence of the phenomena, sustained by a deep ... of the main hypothesis and the research plan will reduce errors while taking a decision in understanding a phenomenon. The ...
The phenomenon may arise for a number of reasons, though it is most typically to access food and avoid predators.[6] While this ... Various stimuli are responsible for this phenomenon, the most prominent being response to changes in light intensity,[6] though ...
Panaino, Antonio (2002). Ideologies as Intercultural Phenomena: Proceedings of the Third Annual Symposium of the Assyrian and ...
Chronobiology International. 22 (3): 559-570. doi:10.1081/CBI-200062410. PMID 16076654.. ... phenomena. *Dream. *Exploding head syndrome. *False awakening. *Hypnagogia / Sleep onset. *Hypnic jerk ...
... which connects phenomena that arise simultaneously; 3) homogeneity, explaining the homogenous flow that evokes phenomena ... Here Aristotle insists that all four modes of explanation are called for in the study of natural phenomena, and that the job of ... It is specifically characteristic of quantal phenomena that observations defined by incompatible variables always involve ... which asserts that the phenomena of the universe are products of or emanations from an omnipotent being or such final cause"; " ...
Chronobiology Phenomena * Depression / diagnosis* * Depression / pathology* * Female * Humans * Light * Male * Middle Aged ...
Psychiatric Aspects of Chronobiology and Sleep.- 12 On Self-Assessed Mood and Efficiency During Long-Term Isolation.- 13 ... Possible Relations Between Disorders in Circadian Rhythmicity and Mental Disorders.- 14 Periodic Phenomena in Affective Illness ...
Chronobiology: the science of investigating and objectively quantifying phenomena and mechanisms of the biologic time structure ...
Chronobiology - field of biology that examines periodic (cyclic) phenomena in living organisms and their adaptation to solar- ... Theoretical Biology - the mathematical modeling of biological phenomena.. *Systems biology - computational modeling of ...
Chronobiology is the study of timing mechanisms in biological systems as diverse as plants, animals and some micro-organisms. ... It includes rhythmic phenomena ranging from short period (ultradian) through daily (circadian) to long period (monthly, annual ...
Chronotype and time-of-day correlates of mind wandering and related phenomena. Biological Rhythm Research, 45(1), 37-49. https ... Chronobiology International, 17(6), 719-732. https://doi.org/10.1081/CBI-100102108.CrossRefPubMedGoogle Scholar ... mind-wandering is increasingly being recognized as a phenomenon that has so far evaded a one-to-one correspondence with any ... Chronobiology International, 34(7), 993-1001. https://doi.org/10.1080/07420528.2017.1308951.CrossRefPubMedGoogle Scholar ...
Chronobiology is a new and relatively unknown science. It includes the investigation and study of rhythmic patterns established ... in biological or living phenomena. These patterns influence our mood and emotions, as well as our strength, speed and athletic ... In addition to identifying the cause and nature of these rhythmic patterns which generally occur in cycles, Chronobiology ...
New models, such as the soliton model attempt to explain these phenomena, but are less developed than older models and have yet ... Also improbable possibility of modelling of local chronobiology mechanisms.. *Modern views regarding of the role of the ... The shortcomings of the model is its inability to reflect properly the following phenomena:. *The edge emphasizing property of ...
Chronobiology is a field of science that examines periodic (cyclic) phenomena in living organisms. ... Views of a Foetus in the ... This phenomenon, known as "Mendels second law" or the "Law of independent assortment", means that the alleles of different ... Over many generations, the genomes of organisms can change, resulting in the phenomenon of evolution. Mutations and the ... In 1928, Frederick Griffith discovered of the phenomenon of transformation (see Griffiths experiment): dead bacteria could ...
... of rhythmic temporal relationships in biological phenomena. Our bodies go through a day as if multiple clocks were hardwired ... DNC NEWS: Chronobiology and Chemotherapy: Subject: Administering cancer treatments according to circadian rhythms can increase ... There is a new buzzword in cancer therapy, Chronobiology. Simply put, this means the study of clocklike stuff in living things ... Chronobiology of the mammalian response to ionizing radiation. Potential applications in oncology. ...
Chronobiology. The science of investigating and objectively quantifying phenomena and mechanisms of the biologic time structure ... The phenomenon exhibited by biological clocks that results in them not responding to different ambient temperatures in a way ... Mechanism leading to the manifestation of a rhythmic phenomenon (oscillation), that either is self sustained (pacemaker), or ...
Chronobiology. WBLS19002. Temporal organisation; analysis of behavior; history and position of the field; circadian rhythms: ... phenomena and function; sleep wake regulation I & II; sleep and genetics; pathology of the circadian system; chronofarmacology ...
Chronobiology is a field of biology that examines timing processes, including periodic (cyclic) phenomena in living organisms, ... "Father of Chronobiology" The University of Virginia offers an online tutorial on chronobiology. See the Science Museum of ... Chronobiology comes from the ancient Greek χρόνος (chrónos, meaning "time"), and biology, which pertains to the study, or ... Chronobiology studies variations of the timing and duration of biological activity in living organisms which occur for many ...
This may seem to be a heretical position to take, given that the phenomenon of food entrainment of circadian rhythms was first ... Standards of evidence in chronobiology: A response. Authors: Patrick M Fuller , Department of Neurology, Program in ... Mistlberger, RE Buijs, RM Challet, E Escobar, C Landry, GJ Kalsbeek, A et al. (2009). Standards of evidence in chronobiology: ... Fuller, P. M., Lu, J., & Saper, C. B. (2009). Standards of evidence in chronobiology: A response. Journal of Circadian Rhythms ...
Charlotte Helfrich-Försters research activities focus on chronobiology, the study of periodic (cyclic) phenomena in living ...
The field of chronobiology has advanced greatly in recent decades, achieving important breakthroughs in research in nearly all ... A better understanding of periodicity of epileptic phenomena is very important for epilepsy chronotherapy. So far, only limited ... The use of epilepsy chronotherapy will be contingent upon the amount of knowledge generated from future epilepsy chronobiology ... Loddenkemper, T; Lockley, SW; Kaleyias, J; Kothare, SV Chronobiology of epilepsy: Diangnostic and Therapeutic Implications of ...
Chronobiology: Sleep and synaptic rhythms. Chronobiologists at Ludwig-Maximilians-Universitaet (LMU) in Munich, Germany, show ... Researchers at the University of Liverpool have shown that the phenomenon of protein modification (phosphorylation) in cell ...
Darwinian biology describes phenomena that are a result of a myriad of interactions but have no particular dominant factor at ... When we have desynchronization of the SCN from the peripheral organ clocks, we call this a phase shift in chronobiology. This ... It is where QED and chronobiology collide primordially, and where a new paradigm can be born if we are perceiving what the ... What do I mean by that? Many physiologic phenomena we observe to occur cannot be explained by their theories, such as the ...
Dunlap J.C. J.J. Loros & P.J. DeCoursey (2004). Chronobiology. Biological timekeeping . Sunderland, ma: Sinauer Associates, Inc ... the phenomenon in which two or more independent rhythmic processes synchronize with each other - has been described in a wide ... One of the reasons that the actogram became a key representation in Chronobiology is that it allows a fast and reliable visual ... This effect in Chronobiology is called entrainment. Therefore, under entrained conditions, circadian rhythms adjust their ...
UCSDs newly formed Center for Chronobiology (CCB) hosted its 2nd annual chronobiology symposium on February 9-11, 2011. The ... Our research unit is focused on just one of these chronobiological phenomena: the daily or circadian clock. The name circadian ... Chronobiology is the biology of time, or the study of internal biological clocks. Biological clocks are found at all levels in ... Susan Golden is a Distinguished Professor in the Section of Molecular Biology, and Director of the Center for Chronobiology at ...
... science paid little attention to such phenomena for most of human history. In the 18th century, curious types such as Swedish ... The questions of chronobiology are as intricate and varied as the pieces of a clock - the gears, the springs, the screws - and ... One aim of chronobiology, aside from simply understanding the whys and wherefores of our inner clocks, is to find ways to ... Still, chronobiology didnt begin to be recognized as a legitimate field of scientific study until around the 1960s, with the ...
1974 Periodicity of infectivity of plasmodial gametocytes: the Hawking phenomenon. Int. J. Parasitol. 4, 103-106. doi:10.1016/ ... Chronobiology has historically been neglected by evolutionary ecologists, but this is changing as it offers a novel opportunity ... First, the majority of recent research in the field of chronobiology has focused on asking questions about clock mechanisms [7- ... Our study thus achieves a rare link between chronobiology and evolutionary biology, as well as representing a novel application ...
... this review provides intensivists with an up-to-date understanding of the burgeoning field of chronobiology, and suggests ways ... The study of these cyclical phenomena, known as chronobiology, is growing in prominence throughout diverse disciplines, as ... McKenna, H., van der Horst, G.T.J., Reiss, I. et al. Clinical chronobiology: a timely consideration in critical care medicine. ... Clinical chronobiology: a timely consideration in critical care medicine. *Helen McKenna1. , ...
When these phenomena are considered in accordance with human life cycles, the peaks of the cytokine secretions fall early in ... Attention to the control of clock genes and chronobiology is now increasing, and thus a proactive examination work in this ... A chronobiology research has been progressed with the elucidation of this circadian rhythm [1]. ... Akira Hashiramoto, Kohsuke Yoshida, Nao Shibanuma and Yoshitada Sakai (2018) Chronobiology of rheumatoid arthritis; now and ...
... difficulty of the causal process of such group phenomena. During the last World Congress on Chronobiology (Paris, September ... Astronomical contributions to the explanation of astrological phenomena -- Irina Predeanu. We discuss the possible contribution ... We observed that some solar phenomena also exhibit 27-to-28-day cycles similar to those of the Moon, indicating a further ... Hypotheses on the causal nature of astrological phenomena: 11.5 / 10.1 / 10.6 / 9.5 ...
en] Adolescent ; Adult ; Age Factors ; Aged ; Aged, 80 and over ; Belgium/epidemiology ; Chronobiology Phenomena ; Female ; ...
chronobiology 1. The scientific study of the effect of time on living systems. 2. That aspect of biology that is concerned with ... 3. The study of the causal relations between geographical phenomena occurring within a particular region.. 4. The study of the ... A branch of chronobiology concerned with the effects of drugs upon the timing of biological events and rhythms, and the ... the timing of biological events, especially repetitive or cyclic phenomena in individual organisms.. 3. The study of biological ...
Chronobiology Phenomena*. *Delayed-Action Preparations. *Drug Administration Schedule. *Epinephrine/administration & dosage. * ... Chronobiology and asthma. II. Body-time-dependent differences in the kinetics and effects of bronchodilator medications.. ...
ZHANG S PHENOMENON (HIS ELECTROGRAM ALTERNANS) AND A NEW MODEL OF ATRIOVENTRICULAR NODE DUAL PATHWAY CONDUCTION Youhua Zhang, M ... Chronobiology is a branch of biomedical sciences devoted to the study of biological rhythms, that according to cycle length, ... EXERCISE RELATED HYPERTENSION (ERH) MAY NOT BE A BENIGN PHENOMENON Yzhar Charuzi, M.D., Cedars Sinai Medical Center, LA, USA ... TEMPORAL VARIATION IN ACUTE AORTIC DISEASES: ONLY A RANDOM PHENOMENON?. Roberto Manfredini, M.D., University of Ferrara, Italy ...
TEMPORAL VARIATION IN ACUTE AORTIC DISEASES: ONLY A RANDOM PHENOMENON?. Roberto Manfredini, M.D., University of Ferrara, Italy ... Chronobiology is a branch of biomedical sciences devoted to the study of biological rhythms, that according to cycle length, ... Endothelial hyperpermeability and vascular leakage are significant pathogenic phenomena. Although contributing to life- ...
  • Chronobiology - field of biology that examines periodic (cyclic) phenomena in living organisms and their adaptation to solar- and lunar-related rhythms. (wikipedia.org)
  • As Head of the Department of Neurobiology and Genetics, Charlotte Helfrich-Förster's research activities focus on chronobiology, the study of periodic (cyclic) phenomena in living organisms. (innovations-report.com)
  • Is it better to take Omega 3's at night or on the morning Chronobiology examines cyclic phenomena (or bio-rhythms) in living organisms, and their adaptation to solar and lunar rhythms. (santamonicafertility.com)
  • Study of time-dependent phenomena in living organisms. (bankingshortcuts.com)
  • In the field of chronobiology, the study of biological rhythms in living organisms, entrainment is the synchronization of a circadian rhythm with the rhythm of an external pattern, such as the synchronizing of women's menstrual cycles with the phases of the moon or with one another in a group. (brainwaveentrainmentnow.com)
  • Chronobiology refers to the study of various cycles or rhythms that are fundamental to living organisms, including human beings. (wroc.pl)
  • 2. That aspect of biology that is concerned with the timing of biological events, especially repetitive or cyclic phenomena in individual organisms. (wordinfo.info)
  • Aging, biological rhythms, and cyclic phenomena are included. (bvsalud.org)
  • the science of investigating and objectively quantifying phenomena and mechanisms of the biologic time structure, such as circadian rhythms. (assemblymag.com)
  • It includes rhythmic phenomena ranging from short period (ultradian) through daily (circadian) to long period (monthly, annual) cycles of behaviour, physiology and biochemistry. (indigo.ca)
  • Our research unit is focused on just one of these chronobiological phenomena: the daily or circadian clock. (thesciencenetwork.org)
  • Despite circadian clocks being such a widespread phenomenon, demonstrating the fitness benefits of temporal coordination is challenging and such studies are rare. (royalsocietypublishing.org)
  • A cornerstone of chronobiology is the idea that organisms have evolved circadian clocks to allow coordination of physiology and behaviour with the Earth's daily rotation [ 2 ]. (royalsocietypublishing.org)
  • Still, chronobiology didn't begin to be recognized as a legitimate field of scientific study until around the 1960s, with the work of scientists such as Franz Halberg at the University of Minnesota, who coined the term "circadian" (meaning a 24-hour period), and Colin Pittendrigh at Princeton and Stanford, who organized the first dedicated scientific symposium on biological clocks at Cold Spring Harbor Laboratory in 1960. (medicalxpress.com)
  • A chronobiology research has been progressed with the elucidation of this circadian rhythm [1]. (oatext.com)
  • The circadian rhythm oscillation, transmitted from the hypothalamic suprachiasmatic nucleus (SCN), is involved in various biological phenomena such as sleep, hormone secretion, division and proliferation of cells. (oatext.com)
  • Chronobiology is a branch of biomedical sciences devoted to the study of biological rhythms, that according to cycle length, are classified into: circadian (period of around 24 hours), ultradian (less than 24 hours), and infradian (more than 24 hours, e.g., days, weeks, months), and their interactions with bodily functions. (cardiologyonline.com)
  • The two animal experiments were entitled Chronobiology of Pocket Mice and Circadian Rhythm in Vinegar Gnats. (wikipedia.org)
  • Circadian rhythms are behind this phenomenon. (empoweringprincesses.com)
  • The most important rhythm in chronobiology is the circadian rhythm , a roughly 24-hour cycle shown by physiological processes in all these organisms. (infogalactic.com)
  • Franz Halberg of the University of Minnesota , who coined the word circadian , is widely considered the "father of American chronobiology. (infogalactic.com)
  • Chronobiology is the biology of time and our biological (circadian) rhythms in relation to the cycles in nature. (toptotoetreatments.com)
  • The effects of circadian rhythms on human performance in general and on response to exercise in particular are a well-known phenomenon. (oup.com)
  • Recent discoveries in chronobiology invite us to review our eating patterns in terms of circadian rhythms, feast and fast [1]. (naturalmedicineweek.com.au)
  • Or you can use the brainier definition, Chronobiology is the quantitative study of rhythmic temporal relationships in biological phenomena. (denvernaturopathic.com)
  • Harnessing these important biological phenomena to match metabolic supply to demand and bolster cell defenses at the apposite time may be a future therapeutic strategy in the intensive care unit. (eur.nl)
  • The late J. Christian Gillin of the San Diego Veteran Affairs Healthcare Center and professor of psychiatry at the University of California, San Diego, conducted research on sleep, chronobiology and mood disorders. (scientificamerican.com)
  • It includes the investigation and study of rhythmic patterns established in biological or living phenomena. (coryholly.com)
  • In addition to identifying the cause and nature of these rhythmic patterns which generally occur in cycles, Chronobiology attempts to understand the influence of these patterns on physiological, psychomotor, cognitive and psycho-emotional functions. (coryholly.com)
  • The science of investigating and objectively quantifying phenomena and mechanisms of the biologic time structure, including the rhythmic manifestations of life. (chronobiology.ch)
  • Chronobiology, says Amita Sehgal, "basically refers to the process by which organisms time physiology and behavior, so that everything takes place in a rhythmic fashion. (medicalxpress.com)
  • Chronobiology investigates rhythmic processes at different levels of organization: noncellular systems, the cell, unicellular organisms, cell and tissue cultures, multicellular animals and plants, and populations of organisms. (thefreedictionary.com)
  • N. E. Vvedenskii and A. A. Ukhtomskii scientifically explained the regularities of rhythmic influences on the cell and the phenomenon of cell "assimilation" of external rhythms. (thefreedictionary.com)
  • Although humans have always been at least subliminally aware of how their own bodies and other life forms are affected by natural rhythms such as the day-night cycle, the seasons, and the tides, science paid little attention to such phenomena for most of human history. (medicalxpress.com)
  • This phenomenon, also known as jet syndrome, occurs when humans are transported by jet plane across time zones. (thefreedictionary.com)
  • The related terms chronomics and chronome have been used in some cases to describe either the molecular mechanisms involved in chronobiological phenomena or the more quantitative aspects of chronobiology, particularly where comparison of cycles between organisms is required. (infogalactic.com)
  • Everyone has heard of nature's "biological clocks", the phenomenon of periodic task in crops, animals and people. (tvcirculando.com.br)
  • unfortunately, the natural phenomena occurring around us, govern not only our physiology, but also can cause the development of some diseases. (vsebolezni.com)
  • The authors combine expertise in sports science, chronobiology, and physiology, and the text offers scientific research with clinical practice. (oup.com)
  • When these phenomena are considered in accordance with human life cycles, the peaks of the cytokine secretions fall early in the morning after the melatonin blood concentration peaks in human bodies. (oatext.com)
  • We observed that some solar phenomena also exhibit 27-to-28-day cycles similar to those of the Moon, indicating a further possible impact of the Sun on cycles of the biological menses. (aureas.org)
  • Chronobiology is the study of timing mechanisms in biological systems as diverse as plants, animals and some micro-organisms. (indigo.ca)
  • Chronobiology is the biology of time, or the study of internal biological clocks. (thesciencenetwork.org)
  • The study of how biological clocks work to control and regulate almost every function of life is called chronobiology. (medicalxpress.com)
  • The study of these cyclical phenomena, known as chronobiology, is growing in prominence throughout diverse disciplines, as their pervasive nature becomes apparent. (biomedcentral.com)
  • 3. The study of the causal relations between geographical phenomena occurring within a particular region. (wordinfo.info)
  • Chronobiology is the study of biological rhythms. (bipolarchild.com)
  • It is fundamental to study inflammation as a multilevel phenomenon. (bvsalud.org)
  • Chronobiology comes from the ancient Greek χρόνος ( chrónos , meaning "time"), and biology , which pertains to the study, or science, of life . (infogalactic.com)
  • The study of chronobiology started with plants and with floral clocks - plants that show flowering at certain times of day. (breakingthegrey.com)
  • Australian sports scientists at Victoria University write this in a meta-study published in Chronobiology International. (ergo-log.com)
  • Siffre was a French scientist and a pioneer in chronobiology, which is the study of biological rhythms. (amazonaws.com)
  • Halberg, Pittendrigh, and their colleagues helped to lay much of the foundations of chronobiology, weaving together different strands of inquiry from biology, psychology, and genetics. (medicalxpress.com)
  • Bioelectromagnetism is associated with biorhythms and chronobiology . (wikidoc.org)
  • A branch of chronobiology concerned with the effects of drugs upon the timing of biological events and rhythms, and the relation of biological timing to the effects of drugs. (wordinfo.info)
  • First, the majority of recent research in the field of chronobiology has focused on asking questions about clock mechanisms [ 7 - 11 ]. (royalsocietypublishing.org)
  • this review provides intensivists with an up-to-date understanding of the burgeoning field of chronobiology, and suggests ways to incorporate these concepts into daily practice to improve patient outcomes. (biomedcentral.com)
  • Chronobiology is a field that studies the effects of time on biological systems. (balkanmedicaljournal.org)
  • Developments in the field of chronobiology and data obtained from chronotherapeutics may enable the development of evidence-based diagnosis and treatment in psychiatry. (balkanmedicaljournal.org)
  • Over the past few decades, chronobiology has developed into a multidisciplinary field of interest in general medicine and psychiatry (1). (balkanmedicaljournal.org)
  • Research on chronobiology is constantly growing and has contributed to the development of an interdisciplinary field of research. (balkanmedicaljournal.org)
  • We have a scientific field that looks at phenomena that occur in specific rhythms: chronobiology. (strongerbyscience.com)
  • The 1960 symposium at Cold Spring Harbor Laboratory laid the groundwork for the field of chronobiology. (infogalactic.com)
  • One such phenomenon is a brainwave , which neurophysiology studies, where bioelectromagnetic fluctuations of voltage between parts of the cerebral cortex are detectable with an electroencephalograph . (wikidoc.org)
  • 4. Further acquaint the speakers, their groups, and other registrants with the depth and breadth of Chronobiology research conducted at UCSD. (thesciencenetwork.org)
  • And almost without even trying to, the University of Pennsylvania has become one of the world's leading centers of chronobiology, with cutting-edge research that involves almost every one of Penn Medicine's science departments and several departments of its hospitals. (medicalxpress.com)
  • This course and the companion research apprenticeship provide students a fully textured research and academic experience in human sleep and chronobiology research. (sleepresearchsociety.org)
  • Finally, there is a chapter devoted to research methods in chronobiology, the scientific discipline underpinning the content of the book. (oup.com)
  • The table to the right includes counts of all research outputs for Interdisciplinary Center for Nonlinear Phenomena and Complex Systems (CENOLI), ULB published between 1 December 2018 - 30 November 2019 which are tracked by the Nature Index. (natureindex.com)
  • In this review we introduce the basics of clinical chronobiology and propose the potential value to be gained from clinicians applying these new concepts to their daily practice. (biomedcentral.com)
  • This clinical phenomenon occurs even when the photons of the impulsive signal are blocked. (holoener.com)
  • Chronobiology is a new and relatively unknown science. (coryholly.com)
  • These inflight tests gave additional information about fluid distribution and fluid balance to get a better understanding of the fluid shift phenomena. (wikipedia.org)
  • This phenomenon occurs because smell provides most of the information about the flavor. (scientificamerican.com)
  • Researchers at the University of Liverpool have shown that the phenomenon of protein modification (phosphorylation) in cell signalling is far more diverse and complex than previously thought. (brightsurf.com)
  • According to Harvard Medical School researchers, "As people age, it takes longer to fall asleep, a phenomenon called increased sleep latency. (amazonaws.com)
  • We found that a moderate dose of alcohol consumed by a young woman an hour before bed is associated with increased sleep intensity in the first couple hours of the sleep episode," says author Mary A. Carskadon, PhD, with the Bradley Hospital Sleep and Chronobiology Laboratory and Brown Medical School. (scienceblog.com)
  • Eating three meals a day with snacks in-between or eating at any time are recent phenomenon in our modern societies [2]. (naturalmedicineweek.com.au)
  • This publication provides in a concise yet accomplished model the fundamental ideas of chronobiology and their software to medical medication. (tvcirculando.com.br)
  • Others who have contributed significantly to chronobiology in the 20th century include A. Jores (Federal Republic of Germany), J. Möllerstrom and E. Forsgren (Sweden), J. W. Hastings and F. A. Brown (United States), and J. Cloudsley-Thompson and J. E. Harker (Great Britain). (thefreedictionary.com)
  • The persistent rhythms of life, the body clocks that control when you wake, sleep, eat, digest food, and perform nearly every other function of a living organism, are all the province of chronobiology. (medicalxpress.com)
  • Susan Golden is a Distinguished Professor in the Section of Molecular Biology, and Director of the Center for Chronobiology at the University of. (thesciencenetwork.org)
  • The differences among several group means, but unlike ferritin, it is a nonspecific phenomenon that has equidistant parallel grooves engraved on its own. (bigsurlandtrust.org)
  • Galvani coined the term animal electricity to describe the phenomenon, while contemporaries labeled it galvanism . (wikidoc.org)
  • 2. Exchange a broad spectrum of ideas and techniques in Chronobiology. (thesciencenetwork.org)
  • Chronobiologists Susan Golden, Andrew Millar, Deborah Bell-Pedersen, John O'Neill discuss a broad spectrum of ideas and techniques in Chronobiology. (thesciencenetwork.org)
  • Chronomedicine is a part of chronobiology, studying the cyclic changes in the biosphere in General. (vsebolezni.com)
  • Bioelectromagnetism is sometimes difficult to understand because of the differing types of bioelectricity, such as brainwaves, myoelectricity (e.g., heart-muscle phenomena), and other related subdivisions of the same general bioelectromagnetic phenomena. (wikidoc.org)
  • 2. The other thing you cannot afford to do is evaluate whether or not a technique is having an effect based upon having (or not having) any of those superficial, irrelevant, distracting phenomena discussed above, like face flushing, seeing light swirls, having sensations of this, that or the other thing, etc. (brainwaveentrainmentgurus1a.com)