نتایج جستجو برای: 2very cold
تعداد نتایج: 105203 فیلتر نتایج به سال:
This experiment was designed to determine the role of vitamin E and coenzyme Q10 antioxidant on immunity of broilers in cold stress conditions. For this purpose, 500 male chicks in a completely randomized design with 5 treatments, 5 replicates and 20 chicks in each replicate were tested in 25 experimental units. Treatments were: positive control (normal conditions growth without antioxidants)...
To study the effect of Piriformospora indica and paclobutrazol (PBZ) as a plant growth regulator for inducing cold stress tolerance in green beans plant (Phaseolus vulgaris L.), a greenhouse experiment was performed as a factorial arrangement based on completely randomized design with three replications. Treatments consisted of three cold stress levels (control, three and six days cold stress a...
The Moldavian dragonhead (Dracocephalum moldavica L., Lamiaceae) is an annual medicinal plant with beneficial nutritional sources that plays important roles in human and animal feed. Nanoparticles and cold atmospheric plasma increase biochemical compounds in plants. In this study, the effects of copper nanoparticles and cold atmospheric plasma on biochemical indices of the medicinal plant Draco...
Cold acclimation is a critical physiological adaptation for coping with seasonal cold. By increasing their cold tolerance individuals can remain active for longer at the onset of winter and can recover more quickly from a cold shock. In insects, despite many physiological studies, little is known about the genetic basis of cold acclimation. Recently, transcriptomic analyses in Drosophila virili...
there is a complicated relation between cold flat rolling parameters such as effective input parameters of cold rolling, output cold rolling force and exit thickness of strips. in many mathematical models, the effect of some cold rolling parameters has been ignored and the outputs have not a desirable accuracy. in the other hand, there is a special relation among input thickness of strips, the ...
cold tolerance is an adaptative mechanism that plants in temperate climates require to survive and grow in suboptimal temperatures. exposed plant to low temperature produces a myriad of measurable changes in biochemical characters that are often highly correlated with plant cold tolerance. a key element of cereal adaptation to cold is represented by the capacity for physiological adjustments ...
screening of native cultivars and understanding of the mechanisms involved in cold hardiness in grapevines is needed to match cultivars appropriately with growing sites and aid in breeding and selecting cultivars with improved freezing tolerance. in this study cold hardiness of fifteen grapevine (vitis vinifera l.) cultivars were evaluated using tetrazolium stain test and post freezing budbreak...
Acute cold stress induces suppressor macrophages expressing large numbers of receptors to the crystallizable fragment (Fc) portion of immunoglobulin G (MAC-1+ FcgammaRII/IIIbright cells), resulting in the immunosuppression of splenocyte mitogenesis. The generation of MAC-1+ FcgammaRII/IIIbright cells is mediated by the action of glucocorticoids (GCs) through the GC-receptor. In the present stud...
Cold urticaria develops in response to exposure to cold stimuli, such as cold air, water or objects. Symptoms may vary from localized wheals to systemic reactions, sometimes leading to life-threatening conditions. Physicians need to be cautious when they administer cold fluid intravenously to patients who develop urticaria as a result of exposure to cold. We report here a patient in whom cold u...
Previous studies have reported about the changes in thermoregulatory responses due to cold adaptation, and several types of cold adaptation (insulative, metabolic and hypothermic adaptation) have been described (Bittel, 1987; Tipton et al., 2008). The differences in cold exposure and physical characteristics have been considered as the factors affecting different types of adaptation. However it...
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