منابع مشابه
Poppers: legal highs with questionable contents? A case series of poppers maculopathy.
BACKGROUND Poppers are volatile alkyl nitrite compounds that are inhaled to enhance sexual experience and for their psychoactive effects. A less well-known side effect is foveal maculopathy, which has emerged following changes in their chemical composition. It is unclear if certain individuals are more susceptible to retinal damage or if there is a relationship between pattern of inhalation and...
متن کاملPoppers Compound Risk for Hiv Infection
Dax EM, et al. “Amyl nitrite alters human in vitro immune function.” Immunopharmacology and Immunotoxicity 1991;13(4):557-587. PMID: 1685501. “The changes in lymphocyte function observed in this study suggest that volatile nitrite inhalation results in a cycle of modest immunosuppression followed by gradual recovery after cessation of drug. NK (natural killer) activity was most noticeably effec...
متن کاملDarwinian Networks
We suggest Darwinian networks (DNs) as a simplification of working with Bayesian networks (BNs). DNs adapt a handful of wellknown concepts in biology into a single framework that is surprisingly simple, yet remarkably robust. With respect to modeling, on one hand, DNs not only represent BNs, but also faithfully represent the testing of independencies in a more straightforward fashion. On the ot...
متن کاملDarwinian fitness.
The term Darwinian fitness refers to the capacity of a variant type to invade and displace the resident population in competition for available resources. Classical models of this dynamical process claim that competitive outcome is a deterministic event which is regulated by the population growth rate, called the Malthusian parameter. Recent analytic studies of the dynamics of competition in te...
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ژورنال
عنوان ژورنال: Perspectives on Science
سال: 2011
ISSN: 1063-6145,1530-9274
DOI: 10.1162/posc_a_00043