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The sympatho-adrenal and pituitary-adrenal cortex axes are the most sensitive, and specific indicators of stress in animals. Increased plasma levels of catecholamines and glucocorticoids are generally considered as the classical response to stress. Most experiments on immobilization have been performed on rats and only a few of them concerned domestic(More)
The effect of 2 months fluoride administration (0.1 and 1.0 mg daily/rat) on thyroxine and triiodothyronine level in blood and T3-resin uptake ratio was investigated in rats. In addition, free thyroxine index was calculated from serum thyroxine level and T3-resin uptake ratio. It was found that fluoride administration caused: 1. decrease in thyroxine and(More)
Heat stress is accompanied by a decrease in basal metabolic rate and plasma thyroid hormones. Unlike 3,5,3'-triiodothyronine (T3) and thyroxine (T4), 3,3',5'-triiodothyronine (rT3) displays hypometabolic properties and antagonizes the hypermetabolic effect of T3. This study analyses the role of rT3 in heat (38-39 degrees C) stressed immature chickens. Two(More)
MoS2(1-x) Se2x single-layer films are prepared using a mixture of organic selenium and sulfur precursors as well as a solid molybdenum source. The direct bandgaps are found to scale nearly linearly with composition in the range of 1.87 eV (pure single-layer MoS2 ) to 1.55 eV (pure single-layer MoSe2 ) permitting straightforward bandgap engineering.
The organism of a food-deprived animal is directed toward minimizing energy expenditure and plasma levels of catabolic hormones and glucose are also reduced. Stress, on the other hand, is associated with enhancement of metabolic processes, elevated plasma catabolic hormones, and higher glucose levels. The question arises as to whether food deprivation may(More)
High incidence of goitre in human together with low level of iodine in water and cow milk have been observed in Southern Poland (Table I). Therefore, iodine deficiency was considered as the only cause of goiter development. The correlation coefficient between iodine concentration in water and cow milk was r = 0.76 (Fig. 1) and indicate the possibility of(More)
Transition metal dichalcogenides (TMDs) have emerged as a new class of two-dimensional materials that are promising for electronics and photonics. To date, optoelectronic measurements in these materials have shown the conventional behavior expected from photoconductors such as a linear or sublinear dependence of the photocurrent on light intensity. Here, we(More)