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تعداد نتایج: 73842 فیلتر نتایج به سال:
Post-weaning diarrhea (PWD) in piglets is a major problem in piggeries worldwide and results in severe economic losses. Infection with Enterotoxigenic Escherichia coli (ETEC) is the key culprit for the PWD disease. F4 fimbriae of ETEC are highly stable proteinaceous polymers, mainly composed of the major structural subunit FaeG, with a capacity to evoke mucosal immune responses, thus demonstrat...
BACKGROUND AND PURPOSE Perfusion MRI can be used to identify patients with acute ischemic stroke who may benefit from reperfusion therapies. The risk of nephrogenic systemic fibrosis, however, limits the use of contrast agents. Our objective was to evaluate the ability of arterial spin labeling (ASL), an alternative noninvasive perfusion technique, to detect perfusion deficits compared with dyn...
Resonant converters are included in a wide range of converters. The strategy of using one is to design a highly efficient converter while eliminating a common disadvantage of traditional implementations based on Pulse-Width Modulation (PWM) – high switching losses. Many different solutions have been suggested, implemented, and tested in recent years, and many of them are now widely used in comm...
All proteins are capable of recognizing and binding specific molecules such as other proteins, cofactors, prosthetic groups or drugs. Efforts to understand the mechanisms controlling selective binding were initially prompted by the realization that recognition and binding are universal features of all biochemical processes. These efforts have intensified with the awareness that knowledge-based ...
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