منابع مشابه
Health world views of post-Soviet citizens.
The collapse of the Soviet Union has had an adverse impact on the lives of the peoples of Russia and Ukraine. This paper reports on qualitative case studies including interviews, focus groups and children's essays from Russia and Ukraine, on the topics of everyday understanding of health and the factors influencing it. The majority report poor health and difficult material circumstances. Their ...
متن کاملObject perception: when our brain is impressed but we do not notice it.
Although our eyes receive incomplete and ambiguous information, our perceptual system is usually able to successfully construct a stable representation of the world. In the case of ambiguous figures, however, perception is unstable, spontaneously alternating between equally possible outcomes. The present study compared EEG responses to ambiguous figures and their unambiguous variants. We found ...
متن کاملObjective Analysis of Impressed Chisel Toolmarks.
Historical and recent challenges to the practice of comparative forensic examination have created a driving force for the formation of objective methods for toolmark identification. In this study, fifty sequentially manufactured chisels were used to create impression toolmarks in lead (500 toolmarks total). An algorithm previously used to statistically separate known matching and nonmatching st...
متن کاملIncreasing the Raw Intelligence of a Nation is Constrained by Ignorance , Not its Citizens ' Genes
In The Bell Curve, Herrnstein and Murray claim that a high value for heritability of intelligence limits or constrains the extent to which intelligence can be increased by changing the environment. This article argues that the concept of heritability is based on unsupportable assumptions and that its numerical value places no constraint on the consequences of an improved environment. On the con...
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Testicular fine needle aspiration (TFNA) has proven to be a simple and minimally invasive procedure, which allows assessments of cytological parameters of seminiferous epithelium/tubules more accurately in a short time. Though this technique does not cause negative effects on sperm quality or any damage to testicular tissue, its use is very limited in male animal infertility diagnostics. Report...
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ژورنال
عنوان ژورنال: Nature
سال: 1989
ISSN: 0028-0836,1476-4687
DOI: 10.1038/338289b0