نتایج جستجو برای: 2167
تعداد نتایج: 336 فیلتر نتایج به سال:
Traumatic stress can alter allostatis and therefore mediate the development of psychological disorders. Recent evidence from molecular studies has shown that telomere length a measure of cellular aging is strongly influenced by a broad spectrum of stress. Telomere erosion might be accelerated by traumatic stress, and traumatic stress has shown to be associated with the risk of developing chroni...
As developing sperm cells (spermatids) acquire an elongate shape during spermatogenesis, they become situated in invaginations in the apices of Sertoli cells. Initially, these crypts are shallow and spermatids are positioned in apical regions of the epithelium. As spermatogenesis continues, the crypts deepen. This deepening results in the repositioning of spermatid heads closer to the base of t...
The present study focused on the production optimization of bacteriocin by Lactobacillus viridescence NICM 2167 followed by its purification and characterization. The bacteriocins are antimicrobial peptides produced by many Gram positive and Gram negative bacteria.The bacteriocin produced by LAB (lactic acid bacteria) received attention in recent years due to their potential application as natu...
The Space Telescope Imaging Spectrograph (STIS) was designed to achieve a signal-to-noise of at least 100:1 per resolution element. MAMA observations during Servicing Mission Orbital Verification (SMOV) confirm that this specification can be met. From analysis of a single spectrum of GD153, with counting statistics of ∼ 165 a S/N of ∼ 125 is achieved per spectral resolution element in the FUV o...
Human history is a life coach but we usually listen very little or we do not keep it in mind. Hippocrates, the founding father of Medicine, wrote in his work “Epidemie” in 350 BC(!) some emblematic sentences, by remembering that ‘the biggest mistake we have made today is to separate psyche from soma’. The evolution of the concept of Positive Psychology, starting from the ancient philosophical a...
Let {(Xi,Yi)}i=1n be a sequence of independent bivariate random vectors. In this paper, we establish refined Cramér-type moderate deviation theorem for the general self-normalized sum ∑ i=1nXi/(∑i=1nYi2)1/2, which unifies and extends classical Cramér (Actual. Sci. Ind. 736 (1938) 5–23) theorems by Jing, Shao Wang (Ann. Probab. 31 (2003) 2167–2215) as well further version (J. Theoret. 24 (2011) ...
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