نتایج جستجو برای: transient stress
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INTRODUCTION Stress cardiomyopathy, also known as Takotsubo cardiomyopathy or left ventricular apical ballooning, has been linked to emotional or physical stress resulting in transient left ventricular dysfunction. It typically affects the mid and apical left ventricular segments. At onset, it resembles acute myocardial infarction, due to the acute onset of chest pain and ST-T segment elevation...
Studies of the role of actin in tumour progression have highlighted its key contribution in cell softening associated with cell invasion. Here, using a human breast cell line with conditional Src induction, we demonstrate that cells undergo a stiffening state prior to acquiring malignant features. This state is characterized by the transient accumulation of stress fibres and upregulation of Ena...
Heat stress negatively affects the health and performance of dairy cows, resulting in considerable economic losses for the industry. In future years, climate change will exacerbate these losses by making the climate warmer. Physical modification of the environment is considered to be the primary means of reducing adverse effects of hot weather conditions. At present, to reduce stressful heat ex...
Modelling fuel behaviour requires an accurate description of the cladding stress response for both operational and safety considerations. The transient creep response of Zirconium alloys is commonly modelled using a strain hardening rule which is known to hold in cases with monotonously increasing stresses. However, the strain hardening rule is experimentally known to fail in scenarios such as ...
The importance of Pressure Vessel (PV) to industries is one the reasons why design and structural integrity should be fully understood considered when deploring it in under different conditions. such vessels need broadened with a detailed thermal stress due its time-dependent behaviours experienced load. Therefore, this study aimed at investigation transient analysis PV subjected operating cond...
Meteorological data (1993 to 2004) from 2 public weather stations in Phoenix, Arizona, and Athens, Georgia, were analyzed with test day milk yield data from herds near weather stations to identify the most appropriate temperature-humidity index (THI) to measure losses in milk production due to heat stress in the semiarid climate of Arizona and the humid climate of Georgia. Seven THI with differ...
The aim of the experiment was to evaluate effects of zinc gluconate (ZnGlu) and probiotic administration on the daily rhythm of cloacal temperature (tcloacal) in broiler chickens of different age groups during the hot-dry season. One-day-old broiler chicks (n = 60) were divided into groups I-IV of 15 chicks per group, and treated for 35 days: Group I (control) was given deionized water; Group I...
OBJECTIVES Caring for demented people has been associated with negative effect on caregiver health. One or more severe stress factors can precipitate brief reactive psychosis. METHODS A 59-year-old Caucasian married woman with no prior psychosis has been caring for her severely demented husband for more than 3 years. She was treated for anxiety disorder and reaction to severe stress in our cl...
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