منابع مشابه
Time keepers abound
Time keepers abound very cell in the body has its own little clock, according to Emi Nagoshi, Ueli Schibler (University of Geneva, Switzerland), and colleagues. These peripheral clocks may be closely related to the body’s central clock—the suprachiasmatic nucleus (SCN). Neurons of the SCN maintain circadian gene expression for long periods of time. Other cells, however, were thought to rely on ...
متن کاملIntracellular Gate-keepers of Tissue Glucocorticoid Action
L Chapman K, Holmes M, Seckl J. 11 -Hydroxysteroid Dehydrogenases: Intracellular Gate-Keepers of Tissue Glucocorticoid Action. Physiol Rev 93: 1139–1206, 2013; doi:10.1152/physrev.00020.2012.—Glucocorticoid action on target tissues is determined by the density of “nuclear” receptors and intracellular metabolism by the two isozymes of 11 -hydroxysteroid dehydrogenase (11 -HSD) which catalyze int...
متن کاملTurning job finders into job keepers.
Most welfare-to-work programs designed to help single mothers leave welfare for employment focus on the challenge of finding a job. This article looks beyond the point of employment to consider the difficulty many former welfare recipients have keeping their jobs. The authors review evidence showing that many families cycle back and forth between welfare and work, losing jobs and returning to p...
متن کاملPoor livestock keepers: ecosystem–poverty–health interactions
Humans have never been healthier, wealthier or more numerous. Yet, present success may be at the cost of future prosperity and in some places, especially in sub-Saharan Africa, poverty persists. Livestock keepers, especially pastoralists, are over-represented among the poor. Poverty has been mainly attributed to a lack of access, whether to goods, education or enabling institutions. More recent...
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ژورنال
عنوان ژورنال: Science
سال: 1884
ISSN: 0036-8075,1095-9203
DOI: 10.1126/science.ns-3.68.615