نتایج جستجو برای: ecological approach
تعداد نتایج: 1377378 فیلتر نتایج به سال:
Ecological studies have been evaluated in epidemiological contexts in terms of the "ecological fallacy." Although the empirical evidence for a lack of comparability between correlations derived from ecological- and individual-level analyses is compelling, the conceptual meaning of the ecological fallacy remains problematic. This paper argues that issues in cross-level inference can be usefully ...
Abstract In today's fast-paced society, environmental breakdown is an ecumenical concern. This dilemma tangled up with the unaccountable anthropogenic activities that are causing significant public health issues. Because of rapid pace development, urban soil and water pollution progressively acting as a sink for variety contaminants, including heavy metals, pesticides, petroleum waste, radioact...
In this paper two external schema generation algorithms are presented. These algorithms are defined in the framework of the new external schema definition methodology for OODBs put forward in (Samos, 1995); they generate an external schema from a set of classes selected from those existing in an external schema definition repository. Their main characteristic is that they avoid the generation o...
Introduction: Psychiatric social work (PSW) is one of the most important areas of social work practice. So far, no protocol has been designed for these interventions in Iran. In this study, for the first time PSW protocol has been designed and presented. Methods: This study was conducted in three phases: desk review, directed content analysis and group discussion for receiving experts' comments...
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