نتایج جستجو برای: force transmissibility
تعداد نتایج: 190424 فیلتر نتایج به سال:
We consider an infectious disease spreading along the edges of a network which may have significant clustering. The individuals in the population have heterogeneous infectiousness and/or susceptibility. We define the out-transmissibility of a node to be the marginal probability that it would infect a randomly chosen neighbor given its infectiousness and the distribution of susceptibility. For a...
To study human-to-human transmissibility of the avian influenza A (H7N9) virus in China, household contact information was collected for 125 index cases during the spring wave (February to May 2013), and for 187 index cases during the winter wave (October 2013 to March 2014). Using a statistical model, we found evidence for human-to-human transmission, but such transmission is not sustainable. ...
A remarkable feature of the 2009 pandemic H1N1 influenza virus is its efficient transmissibility in humans compared to that of precursor strains from the triple-reassortant swine influenza virus lineage, which cause only sporadic infections in humans. The viral components essential for this phenotype have not been fully elucidated. In this study, we aimed to determine the viral factors critical...
PURPOSE Based on contact lens-induced stromal acidification of the cornea, it has been suggested that the corneal epithelial and endothelial cells also become acidotic during contact lens wear. This alleged acidification may have a role in altered cell appearance and metabolism during contact lens wear. This study investigated the effects of anoxia, carbon dioxide retention, and contact lens ga...
hand-arm vibration can cause vascular, neurological and musculoskeletal disorders, collectively named as hand-arm vibration syndrome. the chainsaw is a portable machine that exposes own operators to high levels of hand-arm vibrations. this research focuses on vibration transmissibility from chainsaw handle to wrist and arm of operator. the vibration acceleration signals necessary for evaluation...
This article refers to:RETRACTED ARTICLE: Role of aflatoxin toxicity on transmissibility and pathogenicity H9N2 avian influenza virus in turkeys
Since the emergence of COVID-19 in December 2019 and its declaration as a pandemic following months, this disease has been causing anxiety world population for more than year due to high transmissibility accompanied by absence effective treatment. The capacity virus is such that basic reproduction, an indicator transmissibility, estimated with average value 3.28 median 2.79, so it assumed that,...
Although the great possibilities presented by the study of transmissible tumors of lower animals were fully revealed in 1894 by the systematic observations of Morau, it was not until 1901-2 that the work of Loeb in America and Jensen in Denmark attracted universal attention to this field. Especially in the last decade a great number of observations from a hostof workers have produced a body of ...
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