نتایج جستجو برای: stress variations
تعداد نتایج: 619594 فیلتر نتایج به سال:
Abstract The idea behind the present work is to assess robustness of fresh cement-based materials (i.e. their ability display same properties when submitted variations in way they are produced) from a generic and analytical point view. First, models literature relating components proportions yield stress combined into multi-scale physical approach compared our experimental measurements. In seco...
In rats, naturally occurring variations in maternal care contribute to the development of individual differences in the behavioral and neuroendocrine responses to stress during adulthood. The dopamine (DA) projection to the medial prefrontal cortex (mPFC) plays an important role in mediating stress responsivity and is thought to be involved also in regulating sensorimotor gating. In the present...
Mental stress is a growing problem in our society. In order to deal with this, it is important to understand the underlying stress mechanisms. In this study, we aim to determine how the cardiorespiratory interactions are affected by mental arithmetic stress and attention. We conduct cross time-frequency (TF) analyses to assess the cardiorespiratory coupling. In addition, we introduce partial TF...
salinity is one of the most important abiotic stresses that limit crop growth and productivity. this study focuses on the effects of different strains of plant growth promoting rhizobacteria (pgpr) on the physiological responses of two wheat cultivars under normal and salt stress conditions. the wheat cultivars selected include one which is tolerant to salinity (kavir) and one which is sensitiv...
to study and determine effect of salinity on relationship between agronomic characteristics and grain yield, 167 of the seri/babax recombinant wheat inbred lines (ril) together with two parents were evaluated using alpha latice design with two replications under two conditions (salt stress and normal), in zabol field station in 2011-12 cropping season. fourteen traits including: some a...
Daily life stress markedly affects the response toward stressful stimuli. DNA methy-lation is one of the factors that regulate this response, and is a normal mechanism of somatic cell growth, but its regulatory gene variations may cause alterations in the stress response. The aim of the present study was to investigate genotypic variants of the DNA methyltransferase 3A (DNMT3A) gene in 129 heal...
[1] We compute and analyze P wave spectra from earthquakes in southern California between 1989 and 2001 using a method that isolates source-, receiver-, and pathdependent terms. We correct observed source spectra for attenuation using both fixed and spatially varying empirical Green’s function methods. Estimated Brune-type stress drops for over 60,000ML = 1.5 to 3.1 earthquakes range from 0.2 t...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید