Science topic

Physiological Phenomena - Science topic

The functions and properties of living organisms, including both the physical and chemical factors and processes, supporting life in single- or multi-cell organisms from their origin through the progression of life.
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Publications related to Physiological Phenomena (4,750)
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Article
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Despite the common expectation that social research should strive to include people with relevant expertise by experience, people with intellectual disabilities who are non-speaking are rarely included as participants. Social research seeking to understand self-harm has sought the direct experiences of people who self-harm for decades; this has con...
Article
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Purpose: Analogy are visually similar images that can help medical students integrate novel information with prior facts to enhance comprehension and strengthen inferences. The current study explores the student feedback regarding using analogies in teaching physiology. Methodology: During didactic lectures in Physiology a series of analogies were...
Article
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Sleep is a complex physiological phenomenon crucial for health. Despite this, millions suffer from sleep disorders, contributing to a range of health issues, particularly cardiovascular diseases (CVD). The pathophysiological mechanisms linking sleep disorders, such as insomnia and obstructive sleep apnea (OSA), to cardiovascular risk factors includ...
Preprint
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Confidence in the results is a key ingredient to improve the adoption of machine learning methods by clinicians. Uncertainties on the results have been considered in the literature, but mostly those originating from the learning and processing methods. Uncertainty on the data is hardly challenged, as a single sample is often considered representati...
Conference Paper
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Text: Pulmonary physiology is a complex and often challenging aspect of general physiology. Within a six-week cardiopulmonary module of a one-year Masters in Biomedical and Health Sciences program, we utilized Articulate 360's Rise 360 authoring tool to design eleven brief, interactive lessons. These lessons augmented pulmonary physiology concepts...
Article
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Purpose To analyze the different therapeutic strategies prescribed in orofunctional rehabilitation of the tongue musculature. Research strategies Regional Portal of the Virtual Health Library for Latin America and the Caribbean, Embase, PubMed/MEDLINE, Scientific Electronic Library Online, SciVerse Scopus and Cochrane databases were consulted, with...
Article
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Introduction Pregnancy with more than one fetus in uterus is not a physiological phenomenon for a woman. The risk of most of pregnancy complications is higher and there is a possibility of abnormalities, which are not met in singleton pregnancy, caused by having two or more fetuses supplied by one placenta. Aim Author analyzed recent literature re...
Article
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Background: Women's health is an important task in society. The aim of this qualitative study that used a phenomenological approach was to explain women's personal experiences of giving birth in Gonabad city that had positive experiences of giving birth in order to establish quality cares and the related factors of midwifery cares for this physiolo...
Article
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The absence of low temperature treatment leads to slow shoot growth in spring and results in flowering and various physiological disorders. Among several naturally occurring environmental factors, temperature is considered to play a predominant role in controlling proper growth and flowering in geophytes. Most of them require a “cold-warm” sequence...
Article
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Ghrelin produced in the stomach promotes food intake and GH secretion, and acts as an anabolic peptide during starvation. Ghrelin binds to the growth hormone secretagogue receptor, a G protein-coupled receptor (GPCR), whose high-resolution complex structures have been determined in the apo state and when bound to an antagonist. Anamorelin, a low-mo...
Article
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Pregnancy is a natural physiological phenomenon while during pregnancy women are exposed to physical and mental changes which can affect their health and fetus. This study aimed to study the effect of young couples programs based on the BASNEF model on the mental health spouse support of pregnant women in 2014 years. This study was a quasi-experime...
Article
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Madam, Premenstrual Dysphoric Disorder (PMDD) is a depressive disorder which comprises psychological and somatic symptoms brought on by sensitivity to fluctuations in the levels of female sex hormones throughout the menstrual cycle.1 Symptoms of PMDD present at the luteal phase of the menstrual cycle and usually resolve at the end of menstruation.1...
Preprint
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Background: Sleep constitutes a fundamental physiological phenomenon characterized by its intricate nature, whereby both the corporeal and cognitive domains undergo restorative processes for approximately eight hours each day (Corrêa et al, 2018).
Research
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This study investigated the impact of Muslim prayer, involving physical movements like bowing and prostration, on heart rate variability (HRV) in a healthy individual. ECG recordings were analyzed to assess HRV parameters, including Heart Rate (HR), Standard Deviation of all Normal-to-Normal RR intervals (SDNN), Root Mean Square of Successive Diffe...
Article
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Insight into human physiology is key to maintaining diver safety in underwater operational environments. Numerous hazardous physiological phenomena can occur during the descent, the time at depth, the ascent, and the hours after a dive that can have enduring consequences. While safety measures and strict adherence to dive protocols make these event...
Preprint
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This study investigated the impact of different emotional stimuli (negative news, listening to the Holy Quran) on heart rate variability (HRV) compared to a normal, still state. ECG recordings were analyzed to assess HRV parameters, including Heart Rate (HR), Standard Deviation of all Normal-to-Normal RR intervals (SDNN), Root Mean Square of Succes...
Article
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The nuclear factor of activated T cells (NFAT) is a key player in the NFAT pathway, regulating various cellular processes physiologically and pathologically. NFAT signaling is implicated in developing multiple diseases, such as cancer progression, that are associated with angiogenesis. Despite numerous studies on NFAT, there is still a dearth of in...
Article
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Background: Sleep, a process physiologically vital for mental health, faces disruptions in various sleep disorders linked to metabolic and neurodegenerative risks. Zizyphus seed (Zizy) has long been recognized for its diverse pharmacological attributes, including analgesic, sedative, insomnia, and anxiety alleviation. Objectives: In this study, the...
Preprint
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Hibernation is a fascinating physiological phenomenon that dramatically reduces basal metabolism and thermogenesis, resulting in a large deviation in body temperature (Tb) from homeothermic ranges in mammals. Although high-resolution long-term Tb recording in wild or laboratory animals has become possible through data loggers, few standardized meth...
Article
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Objective: to understand the physiological aspects involved in pre-absorptive thirst satiety based on advances in neurophysiology and their applicability to healthcare. Method: this is a reflective study that compiles physiological phenomena related to the form of satiety, describing the neurophysiological pathway for pre-absorptive thirst satiety....
Article
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Intracerebral blood volume changes along the cardiac cycle cause volumetric strain in brain tissue, measurable with displacement encoding with stimulated echoes (DENSE) magnetic resonance imaging. Individual volumetric strain maps show compressing and expanding voxels, raising the question whether systolic compressions reflect a physiological pheno...
Article
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Objective: to understand the physiological aspects involved in pre-absorptive thirst satiety based on advances in neurophysiology and their applicability to healthcare. Method: this is a reflective study that compiles physiological phenomena related to the form of satiety, describing the neurophysiological pathway for pre-absorptive thirst satiety....
Article
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Background/Objective: The midday depression of photosynthesis, a physiological phenomenon driven by environmental stress, impacts plant productivity. This study aims to elucidate the molecular and physiological responses underlying midday depression in two mulberry species, Ewu No. 1 (Ew1) and Husan No. 32 (H32), to better understand their species-...
Article
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Background: Pregnancy is a physiological phenomenon where there is progressive anatomical, physiological, and biochemical change not only confined to the genital organs but also to all the systems of the body. There is a lack of knowledge in the field of functioning and disability among women with low-risk pregnancy without severe complications, an...
Article
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Background: Pregnancy is a physiological phenomenon where there is progressive anatomical, physiological, and biochemical change not only confined to the genital organs but also to all the systems of the body. There is a lack of knowledge in the field of functioning and disability among women with low-risk pregnancy without severe complications, an...
Article
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Right ventricular (RV) dysfunction after biventricular repair is critical in most adults with congenital heart disease (ACHD). Conventional 2D magnetic resonance imaging (MRI) measurement is considered as a ‘gold standard’ for RV evaluation; however, addition information on ACHD after biventricular repair is sometimes required. The reasons why adju...
Article
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Background First-year medical students may find it challenging to integrate complex physiological concepts, particularly neuromuscular physiology. While concept mapping has shown promise in medical education, its specific application in teaching intricate physiological mechanisms still needs to be explored. With this background, the objective of th...
Article
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Background The precedence effect (PE) is a physiological phenomenon for accurate sound localization in a reverberant environment. Physiological studies of PE have mostly focused on the central nucleus of the inferior colliculus (CNIC), which receives ascending and descending projections, as well as projections from the shell of the inferior collicu...
Article
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Using discrete fractional calculus, a wide variety of physiological phenomena with various time scales have been productively investigated. In order to comprehend the intricate dynamics and activity of neuronal processing, we investigate the behavior of a slow-fast FitzHugh-Rinzel (FH-R) simulation neuron that is driven by physiological considerati...
Article
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Hepatocellular carcinoma (HCC) is one of the most aggressive types of liver cancer, and it is frequently associated with upregulated c-Myc expression. Sorafenib (Sor) is commonly used to treat HCC, but many patients experienced mild to severe side effects due to prolonged Sor treatment during therapy. It has been known that Pentagamavunone-1 (PGV-1...
Article
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The intersection of biomedical engineering and measurement technology has transformed the medical landscape, offering innovative solutions for diagnostics, treatment, and patient monitoring. Biomedical engineering encompasses a broad spectrum of applications, from molecular biology and tissue engineering to medical robotics and wearable technologie...
Article
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Menstrual problems affect as high as 90% of adolescent females and are the main reason for gynecology visits. Menstruation is a normal physiological phenomenon for females indicating her capability for procreation. Menstrual problems are common in adolescent girls, which may affect their life and outdoor activities. Adolescent girls with abnormal b...
Article
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Key points 1. The inferior turbinate is a static structure with a dynamic function as it plays a major role in the formation of nasal valve and laminar airflow. 2. The inferior turbinate resembles an eggplant: it has head, body, and tail; and it is formed of 3 layers which are an outer covering mucosa, an intermediate submucosal connective tissue,...
Article
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When native blood flow through the aorta from the adult heart and lungs meets retrograde blood flow from an artificial heart and lung during venoarterial extracorporeal membrane oxygenation (VA-ECMO), the result is the creation of two separate circulations on either side of the blood flow mixing point. This phenomenon is known as dual circulation a...
Article
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Purpose of review To summarize basic physiological concepts of breathing effort and outline various methods for monitoring effort of inspiratory and expiratory muscles. Recent findings Esophageal pressure (Pes) measurement is the reference standard for respiratory muscle effort quantification, but various noninvasive screening tools have been prop...
Preprint
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Background Fatigue is a common physiological phenomenon in sports. There are reports describing the beneficial effects of exposure to Mild Hyperbaric Oxygen Therapy (MHOT) on metabolic diseases. However, the effects of MHOT on exercise-induced fatigue have not been fully investigated. Therefore, this study aimed to analyze the effects of different...
Article
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Objective The primary objective of this retrospective analysis was to evaluate the incidence and lateralization value of peri‐ictal yawning (PY) in people with temporal lobe epilepsy (TLE). PY has only occasionally been reported as a manifestation of focal epilepsy. We aimed to determine whether PY could serve as an indicator to help lateralize sei...
Article
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This paper explores the integration and impact of a polling solution (EchoPoll) enhanced with artificial intelligence (AI) in a first-year university anatomy and physiology course. The primary aim of this study was to evaluate the student and instructor perspectives of integrating this new polling tool into this course. The overall aims for the int...
Article
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Objetivo: analizar la cavidad bucal en las mujeres embarazadas. Método: descriptiva observacional. Resultados y Conclusión: Aunque el 65% de las encuestadas reportó tener conocimiento sobre este tema, es esencial reforzar las estrategias de prevención e integrar un enfoque interdisciplinario para mejorar la atención bucodental y, con ello, contribu...
Preprint
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“One cannot really argue with a mathematical theorem.” (Stephen Hawking) In this publication, we will focus in detail on the topic "what connects heart rate variability (HRV) and mathematical laws and theorems". We believe that this question is interesting and relevant. Heart rate variability (HRV) is a complex physiological phenomenon influence...
Article
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Conventional methods in learning cell physiology are less effective, so a more interactive approach is needed. Mamanda art offers an innovative solution by modeling biology concepts through drama, comedy, and dialogue, while instilling moral values and collaborative skills. The main objective of this research is to describe the learning activities...
Article
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Aging is a universal physiological phenomenon, and chronic age-related diseases have become one of the leading causes of human mortality, accounting for nearly half of all deaths. Studies have shown that reducing the incidence of these diseases can not only extend lifespan but also promote healthy aging. In recent years, the potential role of non-h...
Poster
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The 1-minute stand-and-sit test (1-STS) has been used to evaluate exercise-induced drop in oxygen pulse saturation (SpO2) in patients with interstitial lung disease (ILD). The behavior of post-exertional SpO2 is not described in the literature, however, in the routine clinical practice of the pulmonary rehabilitation program (PRP) it is considered...
Article
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Background: There are limitations to predicting perinatal asphyxia, as current tools rely almost entirely on fetal cardiotocography (CTG). The fetal lack of responsiveness scale (FLORS) is a new diagnostic alternative based on the physiological phenomena associated with fetal hypoxia. Objectives: The objective of this study was to develop, validate...
Presentation
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This lecture slide presentation introduces Year 2 medical students to the key concepts of regional circulation and the mechanisms regulating blood flow across different tissues and organs, such as the heart, brain, kidneys, and skeletal muscles. The content is designed to minimize cognitive load and promote self-perceived learning (motivation) thro...
Article
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Background Pregnancy is a known physiological phenomenon characterized by various changes in the body. The physical and physiological changes that occur during pregnancy may impact the body image which may lead to implications such as body image issues or poor eating habits among pregnant women. This study aimed to analyze the body image perception...
Article
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Because G protein coupled receptors (GPCRs) represent the largest family of drug targets in clinical trials, GPCR signaling cascades are closely related to various physiological phenomena, attracting significant attention in pharmaceutical science. Opsins (also known as animal rhodopsins) are photoreceptive proteins containing retinal as a chromoph...
Article
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Lammas growth of trees means the additional growth of the shoot after the growth cessation and bud set in late summer. In temperate tree species, lammas growth occurs irregularly and is often regarded as abnormal, disturbed growth. In subtropical tree species, however, lammas growth is a prevalent phenomenon, possibly due to the prolonged occurrenc...
Article
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Mitochondria are central actors in diverse physiological phenomena ranging from energy metabolism to stress signaling and immune modulation. Accumulating scientific evidence points to the critical involvement of specific mitochondrial-associated events, including mitochondrial quality control, intercellular mitochondrial transfer, and mitochondrial...
Preprint
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"The face is the mirror of the mind, and eyes without speaking confess the secrets of the heart." (St. Jerome) Even ancient medicine has established that in the iris of human eyes, individual organs and systems are marked morphologically (ie, the iris is a mirror of the morphology of the human organism). While heart rate variability (HRV) is actu...
Article
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Background: The superimposed pressure is the primary determinant of the pleural pressure gradient. Obesity is associated with elevated end-expiratory esophageal pressure, regardless of lung disease severity, and the superimposed pressure might not be the only determinant of the pleural pressure gradient. The study aims to measure partitioned respi...
Article
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Introduction: Menstruation is a physiological phenomenon experienced by every woman in her reproductive life. Women face tremendous cultural, religious and traditional beliefs that lead to restrictions that are incurred during their menses. Menstrual hygiene management is defined as using materials to absorb or collect menstrual blood that can be c...
Article
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Ayurveda a deeply human form of science, rooted in real-life outcomes obtained through extensive experimentation and research on all aspects that affect life. It offers insight into the intricate composition and functioning of human body (Shareera). The concept of Shadangatvam delves into the six main regions of body, while the Pratyangas provide f...
Preprint
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In this article, we will present several different options for new hypothetical mathematical formulas providing insight into the nature of heart rate variability (HRV). Option A Creating a unique mathematical formula that describes heart rate variability (HRV) is a challenging endeavor, as HRV is a complex physiological phenomenon influenced by v...
Article
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Despite significant advancements in recent decades, gaining a comprehensive understanding of brain computations remains a significant challenge in neuroscience. Using computational models is crucial for unraveling this complex phenomenon and is equally indispensable for studying neurological disorders. This endeavor has created many neuronal models...
Chapter
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The skin is a vital organ in humans that suffers from the impact of intrinsic aging and, in this process, physiological changes occur that are responsible for the thinning of the epidermis, dermis and hypodermis, transforming it into rough, whitish skin, without elasticity, with wrinkles and without freshness. This study aimed to conduct a systemat...
Article
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Heart rate variability (HRV) refers to the physiological phenomenon of variation in heartbeat duration, which can be characterized using various metrics. Considering a complex systems approach, in this study we used network modeling to quantitatively evaluate the relationship between different HRV metrics during sleep. Polysomnography recordings we...
Article
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Objective Neuromuscular evaluation increasingly employs muscle ultrasonography to determine muscle thickness, mean grayscale echointensity, and visual semiquantitative echotexture attenuation. However, these measures provide low sensitivity for detection of mild muscle abnormality. Exercise‐induced intramuscular blood flow is a physiologic phenomen...
Article
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A single pulse of TMS (spTMS) during the delay period of a double serial retrocuing working-memory task can briefly rescue decodability of an unprioritized memory item (UMI). This physiological phenomenon, which is paralleled in behavior by involuntary retrieval of the UMI, is carried by the beta frequency band, implicating beta-band dynamics in pr...
Article
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Physiology concepts, such as acid-base balance, may be difficult for students to understand. Systems modeling, a cognitive tool, allows students to visualize their mental model of the problem space to enhance learning and retention. Methods: We performed a within-subjects three-period randomized control comparison of systems modeling versus written...
Article
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Objective to evaluate a mobile application developed to prevent the use of alcohol and/or other drugs among adolescent students. Method methodological study with a quantitative approach carried out from July 2018 to July 2021 based on the stages of Contextualized Learning Design for technology development: analysis, design, development, implementa...
Article
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Objective to evaluate a mobile application developed to prevent the use of alcohol and/or other drugs among adolescent students. Method methodological study with a quantitative approach carried out from July 2018 to July 2021 based on the stages of Contextualized Learning Design for technology development: analysis, design, development, implementa...
Article
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Introduction: Labor pain is a physiological phenomenon caused by the smooth muscles of the uterus contracting to assist the fetus down the birth canal. There are many causes of this pain, such as experience, fear and anxiety along with racial, cultural, social, and environmental factors and demographic and biological characteristics. Severe labor a...
Article
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Emotion influences human life and impacts daily life activities. During emotional processes, physiological signals interact with each other instead of functioning separately. Although unimodal and multimodal approaches have been explored for emotion classification, there is a lack of inclusion of central and peripheral nervous system signal interac...
Article
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Ageing is a physiological phenomenon associated with cognitive and functional decline which, in the long term, could hamper the execution of daily life activities and threaten both social and independent life. The onset of chronic diseases can intensify this process, increasing the risk of hospitalisation and admission to long term care. This repre...
Preprint
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Motile cells migrate directionally in the electric field in a process known as galvanotaxis, important and under-investigated phenomenon in wound healing and development. We previously reported that individual fish keratocyte cells migrate to the cathode in electric fields, that inhibition of PI3 kinase reverses single cells to the anode, and that...
Preprint
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Utilization of intracranial electroencephalography (iEEG) is rapidly increasing for clinical and brain-computer interface applications. iEEG facilitates the recording of neural activity with high spatial and temporal resolution, making it a desirable neuroimaging modality for studying neural dynamics. Despite its benefits, iEEG faces challenges suc...
Article
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Extracellular vesicles (EVs) serve as an intrinsic system for delivering functional molecules within our body, playing significant roles in diverse physiological phenomena and diseases. Both native and engineered EVs are currently the subject of extensive research as promising therapeutics and drug delivery systems, primarily due to their remarkabl...
Article
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The physiological substantiation of the use of IT methods, implemented in the form of ACS "Varicard", is given to monitor the adaptation and health of schoolchildren during classes with them in the subject "physical culture" (PK). The use of the proposed physiological and pedagogical control is aimed at using an individual approach in the selection...
Article
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The vascular system maintains cellular homeostasis by transporting oxygen, nutrients, and metabolic waste products. The vascular system is involved in a variety of fundamental physiological phenomena and is closely associated with human vascular diseases. Additionally, the stability of drugs in the vasculature affects their efficacy. Therefore, res...
Article
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Background Childbirth pain is a physiological phenomenon during the delivery process, the intense pain of childbirth could bring harmful effects to pregnant women and their babies. Assessment of childbirth pain is the first step in childbirth pain intervention. Some pain assessment scales have shortcomings such as interfering in the birthing proces...
Article
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The development of robust circuit structures remains a pivotal milestone in electronic device research. This article proposes an integrated hardware–software system designed for the acquisition, processing, and analysis of surface electromyographic (sEMG) signals. The system analyzes sEMG signals to understand muscle function and neuromuscular cont...
Article
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The concept of formation and development of methodological system of teaching medical and biological disciplines to future physical education teachers using distance technologies. Medical-biological disciplines are paramount in the education of future physical education teachers. The purpose of this study was to conduct an in-depth analysis of the...