26 papers · ranked by Valyu relevance
Mohamed Elgendi
Photoplethysmography (PPG) is used to estimate the skin blood flow using infrared light. Researchers from different domains of science have become increasingly interested in PPG because of its advantages as non-invasive, inexpensive, and convenient diagnostic tool. Traditionally, it measures the oxygen saturation…
Haiming Shen, Meiqing Hao, Jiawei Ren, Kun Chen + 2 more
'Yvonne Tran'] Cockpit noise, as a critical environmental factor affecting flight safety, may impair pilots’ cognitive functions, leading to a decreased operational performance and decision-making errors, thereby posing potential threats to aviation safety. In order to reveal the relationship between the cockpit noise…
Tianyue Zheng, Zhe Chen, Chao Cai, Jun Luo + 1 more
Given the significant amount of time people spend in vehicles, health issues under driving condition have become a major concern. Such issues may vary from fatigue, asthma, stroke, to even heart attack, yet they can be adequately indicated by vital signs and abnormal activities. Therefore, in-vehicle vital sign…
Mia Cobb, AG Jimenez, Nancy A. Dreschel
Misunderstandings and Opportunities Authors: ['Mia Cobb' 'AG Jimenez' 'Nancy A. Dreschel'] This paper aims to initiate new conversations about the use of physiological indicators when assessing the welfare of dogs. There are significant concerns about construct validity - whether the measures used accurately reflect…
Ardecani, Fatemeh Banani, Shoghli, Omidreza
This paper presents a multi-stage experimental framework that integrates immersive Virtual Reality (VR) simulations, wearable sensors, and advanced signal processing to investigate construction workers' neuro-physiological stress responses to multi-sensory AR-enabled warnings. Participants performed light- and…
Bin Huang, Changchen Zhao, Zimeng Liu, Shenda Hong + 3 more
Public Health Authors: ['Bin Huang' 'Changchen Zhao' 'Zimeng Liu' 'Shenda Hong' 'Baochang Zhang' 'Wenjin Wang' 'Hui Liu'] BIN HUANG , AI Research Center, Hangzhou Innovation Institute, Beihang University, CHN CHANGCHEN ZHAO, School of Computer Science, Hangzhou Dianzi University, CHN ZIMENG LIU, School of Automation…
Arpine Muradyan, Tanja Macheiner, Marine Mardiyan, Eduard Sekoyan + 1 more
Physical activity can improve health as well as reduce stress and the risk of developing several widespread diseases. However, there exists no accepted standard biomedical examination-method for stress evaluation. The purpose of this study was to investigate the effect of regular physical activity on stress and…
Yassine Ouzar, Clémence Nineuil, Fouad Boutaleb, Emery Pierson + 2 more
'Ali Amad' 'Mohamed Daoudi'] Abstract— Depression is a complex mental disorder characterized by a diverse range of observable and measurable indicators that go beyond traditional subjective assessments. Recent research has increasingly focused on objective, passive, and continuous monitoring using wearable devices to…
Amin Gasmi
Feelings and emotions are significant determinants of the behavior of an individual. Human emotions can be established and recognized through several approaches, such as facial images, gesture, neuroimaging methods, and psychological signals [1]. The human body produces many physiological signals. These physiological…
Hadar Rosenbach, Alon Itzkovith, Yori Gidron, Tom Schonberg
Daily stressors elicit physiological and mental responses impacting health, cognition, and behavior. Accurately assessing stress responses in natural settings remains challenging despite extensive research, though wrist-worn devices have the potential to address this gap through remote data collection. The Garmin…
Francesco Rundo, Sabrina Conoci, Alessandro Ortis, Sebastiano Battiato
'Sebastiano Battiato'] Physiological signals are widely used to perform medical assessment for monitoring an extensive range of pathologies, usually related to cardio-vascular diseases. Among these, both PhotoPlethysmoGraphy (PPG) and Electrocardiography (ECG) signals are those more employed. PPG signals are an…
Boyuan Li, Xiaoyang Li, Xia Lu, Rui Kang + 2 more
'Feng Ling'] Baroreflex is critical to maintain the blood pressure homeostasis, and the quantification of the baroreflex regulation function (BRF) can provide guidance for disease diagnosis, treatment and healthcare. Current quantification of the BRF such as baroreflex sensitivity cannot represent the BRF…
Oleksandr Romanchuk
Introduction: The modern practice of sports medicine and medical rehabilitation requires the search for subtle criteria for the development of conditions and recovery of the body after diseases, which would have a prognostic value for the prevention of negative effects of training and rehabilitation tools, and also…
Yuri G. Pavlov, Anastasia S. Gashkova, Dauren Kasanov, Alexandra I. Kosachenko + 2 more
Cognitive load is a crucial factor in mentally demanding activities and holds significance across various research fields. This study aimed to investigate the effectiveness of pulse wave amplitude (PWA) as a measure for tracking cognitive load and associated mental effort in comparison to heart rate (HR) during a digit…
Simon Williamson, Lucie Daniel-Watanabe, Johanna Finnemann, Craig Powell + 5 more
Photoplethysmography (PPG) offers a widely-used, convenient and non-invasive approach to monitoring basic indices of cardiovascular function such as heart rate and blood oxygenation. However, while the pulse waveform, generated by PPG comprises features that are shaped by physiological and psychological factors, it is…
Nikita S Pyko, Svetlana A Pyko, Oleg A Markelov, Oleg V Mamontov + 1 more
We suggest a complementary indicator of the blood pressure – heart rate feedback regulation based on their synchronization pattern assessed by Hilbert transform. We determine the synchronization coefficient Sync as the fraction of time fragments where the standard deviation of the differences between instantaneous…
Diego Candia-Rivera, Kian Norouzi, Thomas Zoëga Ramsøy, Gaetano Valenza
Dynamical information exchange between central and autonomous nervous systems, as referred to functional brain–heart interplay, occurs during emotional and physical arousal. Nevertheless, the role of such a nervous-system-wise communication in mental stress is yet unknown. In this study, we estimate the causal and…
Chiara Barà, Laura Sparacino, Luca Faes, Michal Javorka
This study provides a comprehensive investigation of the spontaneous short-term regulatory mechanisms affecting cardiovascular and cardiorespiratory interactions during supine rest and in response to postural stress. The direct causality measure of conditional transfer entropy was applied to beat-to-beat heart period…
Anton R. Kiselev, Elena N. Mureeva, Viktoria V. Skazkina, Olga S. Panina + 2 more
'Olga S. Panina' 'Anatoly S. Karavaev' 'Yuri V. Chernenkov'] Background: Features of cardiovascular autonomic regulation in infants are poorly studied compared with adults. However, the clinical significance of autonomic dysfunction in infants is very high. The goal of our research was to study the temporal and…
Rumiana Tenchov, Janet Sasso, Xinmei Wang, Qiongqiong Angela Zhou
Aging is a dynamic, time-dependent process characterized by a gradual accumulation of cell damage. Continual functional decline in the intrinsic ability of living organisms to accurately regulate homeostasis leads to increased susceptibility and vulnerability to diseases. Anti-aging research has a long history…
Antoine Wallabregue, Hannah Bolland, Stephen Faulkner, Ester Hammond + 1 more
Hypoxia (low oxygen levels) exists in a wide range of biological contexts, including plants roots, bacterial biofilms, and solid tumors. In all cases, hypoxia elicits responses affecting the biological system that is experiencing low oxygen that impact on its survival. In the case of bacterial biofilms and tumors…
Authors not listed
Catecholic compounds, characterized by their distinct dihydroxybenzene functional groups, are recognized for their diverse biological roles and emerging therapeutic potential. Despite significant advances in understanding their biotransformation and chemical reactivity, the potential for enzyme-independent reactions of…
Authors not listed
The sensitivity of conventional NMR is limited to metabolites at mid-micromolar concentrations, however diagnostically relevant metabolites are often found at lower concentrations. nh-PHIP has shown promise for analyzing complex biological samples like urine, but adapting it to blood presents additional challenges due…
Adva Raz, Hila Gubi, Adam Cohen, Fernando Patolsky
Biomarkers detection have become essential in medical diagnostics and early detection of life-threatening diseases. Modern-day medicine relies heavily on painful and invasive tests, the extraction of large volumes of venous blood being the most common tool of biomarker detection. These tests are time-consuming…
Kazeem Olanrewaju, Ashlee N. Ford Versypt
The human physiological system consists of several biological units carefully organized to engage in a bio-physicochemical interaction with complex fluids transporting nutritional and life-supporting species (oxygen and carbon dioxide) needed for the proper functioning of the body. The nutritional species are products…
Anuj Yadav, Zhenxiang Zhao, Yourong Weng, Sarah Gardner + 3 more
Activity-based sensing (ABS) probes equipped with a NIR bioluminescence (BL) readout are promising chemical tools to study cancer biomarkers owing to their high sensitivity and deep tissue compatibility. However, the standard approach of installing a responsive trigger at the aniline site through a self-immolative…