منابع مشابه
Hardship Strengthens Mutual Bonds
Tiny sap-sucking insects that are a scourge to gardeners also have the upside of helping trees survive in seasonally dry forests in Central America. How? Scale insects use carbon they get from Cordia alliodora trees to make sugar-rich ‘‘honeydew’’ for Azteca pittieri ants, which in turn defend the trees against leaf-munching insects. Mutualism is often stronger when resources are scarce, but th...
متن کاملPoverty, Hardship and Depression
Objective: Mental health disorders are of great social, economic, and policy concern. A higher incidence of major depressive disorder has been reported among those living in or near poverty. Our study examines the extent to which the relationship between income and depression is mediated by measures of material hardship. Methods: We use measures of depression at two points in time from the long...
متن کاملSTIM1 strengthens clotting
Cancer cells outwit the immune system long before they debut as visible tumors, say Willimsky et al. (page 1687). Despite a wealth of studies, researchers still don't know when the immune system is alerted to the presence of cancer cells or when its response is subverted. Part of the problem stems from the fact that T cell responses in most animal models are tracked only after tumors form. To g...
متن کاملPoverty, Material Hardship and Depression.
OBJECTIVE Mental health disorders are of great social, economic, and policy concern. A higher incidence of major depressive disorder has been reported among those living in or near poverty. Our study examines the extent to which the relationship between income and depression is mediated by measures of material hardship. METHODS We use measures of depression at two points in time from the long...
متن کاملTrusted Computing Strengthens Cloud Authentication
Cloud computing is a new generation of technology which is designed to provide the commercial necessities, solve the IT management issues, and run the appropriate applications. Another entry on the list of cloud functions which has been handled internally is Identity Access Management (IAM). Companies encounter IAM as security challenges while adopting more technologies became apparent. Trust M...
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ژورنال
عنوان ژورنال: PLoS Biology
سال: 2013
ISSN: 1545-7885
DOI: 10.1371/journal.pbio.1001706