نتایج جستجو برای: physiological stress

تعداد نتایج: 669731  

2012
Naïla Even Jean-Marc Devaud Andrew B. Barron

The biological concept of stress originated in mammals, where a "General Adaptation Syndrome" describes a set of common integrated physiological responses to diverse noxious agents. Physiological mechanisms of stress in mammals have been extensively investigated through diverse behavioral and physiological studies. One of the main elements of the stress response pathway is the endocrine hypotha...

2018
Edward Narayan Gregory Sawyer Simone Parisella

Reproductive wastage is a key issue for sheep producers, both regionally and globally. The reproductive output of farm animals can be influenced by physiological and environmental factors. Rapid and reliable quantification of physiological stress can provide a useful tool for designing and testing on-farm management interventions to improve farm animal welfare and productivity. In this study, w...

Farzad Paknejad Fayaz Aghayari Mehdi Rezaee Mohammadnabi ilkaee Saeed Rezazadeh,

The purpose of the present study was to investigate the effect of plant growth-promoting rhizobacteria(PGPR) on physiological and biochemical properties of maize (Zea mays L.) in different cultivation methods under water stress. The experiment was carried out as split-plot design including water stress (well-watered, mild stress, and severe stress) as main plot and also cultiv...

Journal: :CoRR 2015
Francisco Hernando-Gallego Antonio Artés-Rodríguez

The relation between performance and stress is described by the Yerkes-Dodson Law but varies significantly between individuals. This paper describes a method for determining the individual optimal performance as a function of physiological signals. The method is based on attention and reasoning tests of increasing complexity under monitoring of three physiological signals: Galvanic Skin Respons...

2010
Yuan Shi Minh Hoai Nguyen Patrick Blitz Brian French Scott Fisk Fernando De la Torre Asim Smailagic Daniel P. Siewiorek Mustafa al’ Absi Emre Ertin Thomas Kamarck Santosh Kumar

This paper describes a study on continuous, nonintrusive stress detection from physiological measurements, involving data collection, feature extraction, and model construction. We built a personalized stress detection model based on Support Vector Machines, and evaluated it on the collected data. Experimental results show that our model can detect stress with high precision.

2013
CHARLOTTE HELLGREN

Hellgren, C. 2013. Physiological Stress Reactivity in Late Pregnancy. Acta Universitatis Upsaliensis. Digital Comprehensive Summaries of Uppsala Dissertations from the Faculty of Medicine 887. 70 pp. Uppsala. ISBN 978-91-554-8636-5. During pregnancy, the basal activity is increased in both of our major stress response systems: the sympathetic nervous system and the hypothalamic-pituitary-adrena...

Journal: :Journal of personality and social psychology 1979
C I Notarius R W Levenson

This study assessed the effects of natural expressive tendencies on physiological response to stress. Male undergraduates were unobtrusively observed while watching a stressor videotape. On the basis of the subjects' facial responsiveness to the film, a group of 23 natural expressers and 22 natural inhibitors were selected and exposed to a threat of shock situation during which heart rate, resp...

2015
Virginia Sandulescu Sally Andrews David Ellis Nicola Bellotto Óscar Martínez Mozos

As the population increases in the world, the ratio of health carers is rapidly decreasing. Therefore, there is an urgent need to create new technologies to monitor the physical and mental health of people during their daily life. In particular, negative mental states like depression and anxiety are big problems in modern societies, usually due to stressful situations during everyday activities...

آرمند, نظام, احمدپور, راهله, حسین زاده, سعیدرضا, چاشیانی, سمیه,

Water stress is one of the most important factors limiting the growth and yield of plants in many parts of the world. In order to evaluate the effects of water stress on some morphological, physiological and antioxidant enzyme activity traits of lentil, four lentil cultivars (i.e. Gachsaran, Kimia, Ziba and Robat) in four water deficit treatments including 25%, 50%, 75% and 100% of the field ca...

2007
H J Rhee Eui-Jin Kim J K Lee

Physiological polyamines are ubiquitous polycations with pleiotropic biochemical activities, including regulation of gene expression, cell proliferation and modulation of cell signalling. Reports that the polyamines with cytoprotective activities were induced by diverse stresses raised the hypothesis that physiological polyamines may play a role in inducing stress response. In a wide range of o...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید