نتایج جستجو برای: rodents and bats moreover
تعداد نتایج: 16834733 فیلتر نتایج به سال:
this experimental study has been conducted to test the effect of oral presentation on the development of l2 learners grammar. but this oral presentation is not merely a deductive instruction of grammatical points, in this presentation two hypotheses of krashen (input and low filter hypotheses), stevicks viewpoints on grammar explanation and correction and widdowsons opinion on limited use of l1...
abstract nowadays, the science of decision making has been paid to more attention due to the complexity of the problems of suppliers selection. as known, one of the efficient tools in economic and human resources development is the extension of communication networks in developing countries. so, the proper selection of suppliers of tc equipments is of concern very much. in this study, a ...
The close genetic relationship between gibbon ape leukaemia virus (GALV) and koala retrovirus (KoRV) has puzzled scientists since its discovery. As the two hosts are separated geographically taxonomically, it was hypothesized that cross-species transmission of an ancestor from another host into gibbons koalas had occurred. relatively recent introduction KoRV genome apparent absence GALV in wild...
Introduction: Rodents are the primary source of several zoonotic infectious diseases. The upsurge of rodents’ population in Najaf Abad Village of Nishapur County, northeastern Iran in February 2014 raised the concerns about the outbreak of diseases such as plague and tularemia. This report discusses the lessons learned from the outburst of rodents’ population in that village and rep...
Because evolution mostly acts over millions of years, the intermediate steps leading to a functional sensory system remain enigmatic. Accordingly, there is an ongoing debate regarding the evolution of bat echolocation. In search of the origin of bat echolocation, we studied how Old World fruit bats, which have always been classified as nonecholocating, orient in complete darkness. We found that...
a novel silver (ag) nanocomposite electrode was proposed that fabricated from metal nanostructures and ionic liquids. the combined application of unique properties of nanomaterials and ionic liquids in the design of this ag nanocomposite results in electrodes with interesting advantages compared to the conventional metal disk electrode. in the first part of this thesis, the elecrocatalytic eff...
In 1967, Daniel Janzen proposed the influential, but largely untested hypothesis, that tropical mountain passes are physiologically higher than temperate mountains. I test his key prediction, the one upon which all the others rely: namely, that elevational range sizes of organisms get larger on mountains at increasing latitudes. My analyses use 170 montane gradients spanning 36.5 degrees S to 4...
Introduction: Leishmanioses are important parasitic diseases presenting in three clinical forms visceral, cutaneous and muco-cutaneous. Some rodents are the reservoir hosts of zoonotic cutaneous leishmaniasis. The disease prevails in many rural areas of Yazd Province. This was the first comprehensive study on the fauna of rodents in Yazd and was conducted to determine the fauna, distribution an...
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