Variation in the beat-to-beat interval is a physiological phenomenon. The SA node receives several different inputs and the ... There are two primary fluctuations: Respiratory arrhythmia (or respiratory sinus arrhythmia). This heart rate variation is ... Heart rate variability (HRV) is the physiological phenomenon of variation in the time interval between heartbeats. It is ... Less is known about the physiological inputs of the low frequency (LF) activity (0.04 to 0.15 Hz). Though previously thought to ...

It largely focuses on the nature of anger, especially from a physiological point of view. Nevertheless, Demarco also sees it ... the phenomena of respiration; and the primary use of respiration. The work, which is made up of some 100 pages, and written in ... the nature and peculiarities of respiratory air; the function of breathing; the instruments of expiration, their powers, ... It was entitled Dissertatio Physiologica de Respiratione, ejusque Uso Primario (Physiological Aspects of Respiration and its ...

... cell phenomena, and immunity G05 - genetic processes G06 - biochemical phenomena, metabolism, and nutrition G07 - physiological ... respiratory tract diseases C09 - otorhinolaryngologic diseases C10 - nervous system diseases C11 - eye diseases C12 - urologic ... chemical and pharmacologic phenomena G13 - genetic phenomena G14 - genetic structures H - Physical Sciences H01 - natural ... respiratory system (46 articles) A05 - urogenital system (87 articles) A06 - endocrine system A07 - cardiovascular system A08 ...

... or by physiological abnormalities in congestive heart failure, and is also seen in newborns with immature respiratory systems ... These phenomena can occur during wakefulness or during sleep, where they are called the central sleep apnea syndrome (CSAS). It ... In normal respiratory control, negative feedback allows a steady level of alveolar gas concentrations to be maintained, and ... Manisty CH, Willson K, Wensel R, Whinnett ZI, Davies JE, Oldfield WL, Mayet J, Francis DP (2006). "Development of respiratory ...

The physiological effects of acute carbon dioxide exposure are grouped together under the term hypercapnia, a subset of ... The respiratory centers try to maintain an arterial CO2 pressure of 40 mmHg. With intentional hyperventilation, the CO2 content ... He used this phenomenon to illustrate that carbon dioxide is produced by animal respiration and microbial fermentation. In 1772 ... Also, with ongoing respiratory acidosis, adaptation or compensatory mechanisms will be unable to reverse such condition. There ...

... change their position approximately every 11.6 min-a phenomenon described by Keane as "minimum physiological mobility ... Pneumonia and other related respiratory illnesses. Disorders of the renal and gastrointestinal systems. Disruption in the ... such as bedsores and respiratory problems. The National Pressure Ulcer Advisory Panel's (NPUAP) Support Surface Standards ...

Respiratory sinus arrhythmia is frequently used as a noninvasive method for investigating vagal tone, in physiological, ... Hayano J, Yasuma F, Okada A, Mukai S, Fujinami T (August 1996). "Respiratory sinus arrhythmia. A phenomenon improving pulmonary ... Hayano J, Yasuma F, Okada A, Mukai S, Fujinami T (August 1996). "Respiratory sinus arrhythmia. A phenomenon improving pulmonary ... Porges SW (1986), "Respiratory Sinus Arrhythmia: Physiological Basis, Quantitative Methods, and Clinical Implications", ...

... is an original phenomenon. From such, all relations between further phenomena can be derived and the latter thus understood ( ... and respiratory system), which momentarily rekindles the momentarily paralysed life, in such a way that they become the ... physiological basis of thinking, willing and feeling; through these soul-activities, human individuality can continue its own ... "A phenomenon, an experiment can prove nothing; it is the link of a great chain which is only valid in the context. He who would ...

Schmidt-Nielsen, B. (1984). "August and Marie Krogh and respiratory physiology". Journal of Applied Physiology: Respiratory, ... American Physiological Society) "© the American Physiological Society - Bodil M. Schmidt-Nielsen". Archived from the original ... Fournier, R. L. Basic Transport Phenomena in Biomedical Engineering. Taylor & Francis, London, 1999. Choi et al. Microfluidic ... The Respiratory Exchange of Animals and Man (1916) Osmotic Regulation in Aquatic Animals (1939) The Comparative Physiology of ...

Active transport Transport phenomena "5.2 Passive Transport - Biology 2e , OpenStax". openstax.org. Retrieved 2020-12-06. "5.2A ... Wagner, Peter D. (2015-01-01). "The physiological basis of pulmonary gas exchange: implications for clinical interpretation of ... arterial blood gases". European Respiratory Journal. 45 (1): 227-243. doi:10.1183/09031936.00039214. ISSN 0903-1936. PMID ... "12.7 Molecular Transport Phenomena: Diffusion, Osmosis, and Related Processes - College Physics for AP® Courses , OpenStax". ...

Micro-PIV has been used to study flows in microfluidic devices, such as lab-on-a-chip systems, and to investigate phenomena ... In biofluids research, PIV has been applied to study blood flow in arteries and veins, respiratory flow, and the motion of ... providing important information for understanding physiological processes and disease mechanisms. PIV has also been used in ... In biofluids research, PIV has been applied to study blood flow in arteries and veins, respiratory flow, and the motion of ...

On the mound of Macrotermes michaelseni as an organ of respiratory gas exchange. Physiological and Biochemical Zoology 74(6): ... the phenomenon of biological design. With this argument, Turner counters both Intelligent Design and strong Darwinism, showing ... Physiological Zoology 67: 1426-1447. Turner, J. S. 1994. Thermal impedance of a contact-incubated bird's egg. Journal of ... Wedekind, C. Can the physiological agents of homeostasis create the appearance of design in nature? Review of J. Scott Turner ...

During late 1772 Lavoisier turned his attention to the phenomenon of combustion, the topic on which he was to make his most ... Lavoisier stated, "la respiration est donc une combustion," that is, respiratory gas exchange is a combustion, like that of a ... but Lavoisier's pioneering work in this field inspired similar research on physiological processes for generations. Lavoisier's ... thus accounting for the puzzling phenomenon of animal heat. Lavoisier continued these respiration experiments in 1789-1790 in ...

Seasonal variation in human birth rate has been found to be a nearly universal phenomenon. Also, birth seasonality has been ... respiratory condition and reproductive conditions with birth month. In addition, they uncovered an association between ... found to be correlated with certain physiological and psychological traits of humans and animals[citation needed]. Evidence for ...

Wan, WH; BT Ang; E Wang (Jan 7, 2008). "The cushing response: A case for a review of its role as a physiological reflex". J ... Other researchers have found that increases in respiratory rate follow ICP decreases, while others say it is a response to ICP ... Cushing reflex (also referred to as the vasopressor response, the Cushing effect, the Cushing reaction, the Cushing phenomenon ... It has been determined that rate of respiration is affected by the Cushing reflex, though the respiratory changes induced are ...

... or acute respiratory distress syndrome (respiratory failure from lung inflammation). Drowning is more likely to happen when ... The physiological effects caused by the diving reflex conflict with the body's cold shock response, which includes a gasp and ... Misinformation about this supposed phenomenon is spread cyclically, mostly at the beginning of summer, over social media. As a ... Secondary drowning: physiological response to foreign matter in the lungs due to drowning causing extrusion of liquid into the ...

... continues his work in evolutionary developmental genetics and directs his research towards the physiological ... in these phenomena. As was then fully accepted in the scientific community, he proposes that cascades of regulation of homeotic ... of action on the transcriptional activation of the Ndufs1 and Ndufs3 subunits of complex I of the mitochondrial respiratory ...

This phenomenon is often appealing to first-time users. Lean is often used in combination with alcohol and/or other drugs. When ... The physiological effects of lean on the user are to produce mild "euphoric side effects", which are accompanied by "motor- ... It ain't that easy." Respiratory depression is a potentially serious or fatal adverse drug reaction associated with the use of ... Using alcohol and other drugs alongside lean increases the chance of respiratory depression. It seems that the concoction does ...

The Physiological Basis of Decompression. 38th Undersea and Hyperbaric Medical Society Workshop. UHMS Publication Number 75 ( ... While not strictly speaking a phenomenon of decompression, it is a complication that can occur during decompression, and that ... Variations in perfusion distribution do not necessarily affect respiratory inert gas exchange, though some gas may be locally ... Decompression is a stressor, and decompression stress is the effect on the organism of the physical and physiological factors ...

Such physiological and cognitive functions are generally not believed to give rise to mental phenomena or qualia, however, as ... Pulmonary stretch receptors are found in the lungs and control the respiratory rate. Peripheral chemoreceptors in the brain ... Nociception (physiological pain) signals nerve-damage or damage to tissue. The three types of pain receptors are cutaneous ( ... The mind considered by itself is seen as the principal gateway to a different spectrum of phenomena that differ from the ...

... this phenomenon is also referred to as physiological arousal. Psychophysiological economics researchers directly measure the ... Respiratory feedback: breathing patterns Surface electromyography: muscle tension patterns (muscle tone) Sweat production ... As such, some levels of physiological stress may benefit the decision making processes, but there may be a threshold as to how ... As a new field of study, psychophysiological economics tends to be focused on evaluating and assessing physiological aspects of ...

This phenomenon is demonstrated during the cell cycle. In the cell cycle, Paraspeckles are present during interphase and during ... The main insight into their physiological function is their location. Prominent Paraspeckles are only found in a subpopulation ... records that quantities of NEAT1 and thus Paraspeckles are increased in digestive system tumours and respiratory cancers. ...

Habituation is a behavioral phenomenon while neural adaptation is a physiological phenomenon, although the two are not entirely ... Some rhythmic movements, such as respiratory movements, are essential for survival. Because these movements must be used over ... This phenomenon also applies to the sense of touch. An unfamiliar piece of clothing that was just put on will be noticed ... The same phenomenon can be observed with other types of smell, such as perfume, flowers, etc. The human brain can distinguish ...

Physiological signals are mainly recorded using special non-invasive surface electrodes (for EDA, EMG, ECG, and EEG), a blood ... With regard to the differences in design, methodology, evaluation sample, and conceptualization of the phenomenon of pain, it ... volume pulse sensor (BVP), a respiratory belt (respiration), and a thermal sensor (body temperature). Endocrinological and ... Psycho-)physiological information such as muscle tone and heart rate can be collected via biopotential sensors (electrodes). ...

Narcosis is a phenomenon that occurs when a combination of organic toxicants, each at low concentrations, have a toxic effect ... This action in some species of fish (e.g. eels) is used to push water over the gills to meet respiratory demands. For coho ... Additional combinations of effects may result from contaminants and pathogens or contaminants and physiological effects. As ... Use of respiratory-cardiovascular responses of rainbow trout (Salmo gairdneri) in identifying acute toxicity syndromes in fish ...

This phenomenon is known as aposematism. Some caterpillars, especially members of Papilionidae, contain an osmeterium, a Y- ... as well as in certain specific morphological or physiological traits within a species. Environmental polymorphism, in which ... along the sides of the abdomen and thorax supplying the trachea with oxygen as it goes through the lepidopteran's respiratory ... This often includes the phenomenon of mimicry when mimetic morphs fly alongside nonmimetic morphs in a population of a ...

To study this phenomenon, IBMP has been conducting research in this area for many years, which has allowed construction of a ... The experiment yielded important data on the physiological, social, and psychological effects of long-term, close-quarters ... Crew experiments included monthly operational research, consisting of recording electrocardiogram, respiratory samples and ... MARS-500 was intended to study the psychological, physiological, and technological challenges inherent to long-duration space ...

This phenomenon has been called "sleep inertia." After sleep deprivation there is usually a sharp rebound of SWS, suggesting ... During non-REM sleep, the tonic drive to most respiratory muscles of the upper airway is inhibited. This has two consequences: ... Parasomnias are sleep behaviors that affect the function, quality, or timing of sleep, caused by a physiological activation in ... This phenomenon is understood as memories and learned skills being metabolized during NREM sleep; the decrease in SWA is ...

Respiratory impairment resulting from being in or underneath a liquid "Exercise in the Cold: Part II - A physiological trip ... Death which occurs in such scenarios is complex to investigate and there are several possible causes and phenomena that can ... The physiological response to a sudden immersion in cold water may be divided in three or four discrete stages, with different ... Diving reflex - The physiological responses to immersion of air-breathing vertebrates Hypothermia - Human body core temperature ...

The subject's physiological data are collected by the EmbracePlus smartwatch and communicated to the Care App via Bluetooth. ... respiratory rate, skin temperature, electrodermal activity, rest, and actigraphy data. Following a response to the Request for ... as a response to the phenomenon of karoshi. Prescription digital therapeutics company Pear Therapeutics is collaborating with ... "Real-time physiological signals , E4 EDA/GSR sensor". Empatica. Retrieved 2020-02-27. "This wearable could help combat opioid ...