نتایج جستجو برای: isolation distanc
تعداد نتایج: 130938 فیلتر نتایج به سال:
The last decade has brought renewed interest in the genetics of speciation, yielding a number of new models and empirical results. Defining speciation as 'the origin of reproductive isolation between two taxa', we review recent theoretical studies and relevant data, emphasizing the regular patterns seen among genetic analyses. Finally, we point out some important and tractable questions about s...
Introduction: Certain types of chronic mental stress impair memory. On the other hand, crocin is introduced in the medical literature as an effective component of saffron with remedial effects on memory impairment. This study investigated the effects of crocin on spatial and cognitive memories, locomotor activity, novel recognition conditions and serum corticosterone levels in rats under chroni...
Introduction and objective: Social isolation can lead to depression, decline in life expectancy, and increased death anxiety among older adults. Therefore, the present study was conducted to determine the predictors of social isolation in community-dwelling older adults residing in Qazvin, Iran. Materials and Methods: This descriptive and cross sectional study was conducted on 301 older adults...
Seismic isolation is a method to reduce the destructive effects of earthquakes on a structure in which the structure is separated from its foundation by devices called seismic isolators. As a result, the horizontal movements of the earthquake transmitted to the structure are reduced. The seismic isolation is used for both newly constructed structures as well as for retrofitting the existing bui...
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