منابع مشابه
A stochastic model for project selection and scheduling problem
Resource limitation in zero time may cause to some profitable projects not to be selected in project selection problem, thus simultaneous project portfolio selection and scheduling problem has received significant attention. In this study, budget, investment costs and earnings are considered to be stochastic. The objectives are maximizing net present values of selected projects and minimizing v...
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Truancy has well-documented short-term and long-term consequences, but there are few studies that look at its impact on injury-related mortality. This study evaluated the rate of injury-related mortality for 2006-2010 among youth (11-17 years old) with a history of severe truancy compared with youth without such history. There were 168 injury-related deaths (51 homicide, 29 suicide and 88 unint...
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The 1959 Inter-Clinic Conference (which is restricted to Child Guidance Clinic personnel) had as its topic the problems of Truancy and School Phobia. In addition to its considerable professional value to the participants, this Conference revealed a number of other important aspects of the problem. It showed that this topic had considerable "news value" to the lay public : it emphasised how clos...
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ژورنال
عنوان ژورنال: Educar
سال: 1986
ISSN: 2014-8801,0211-819X
DOI: 10.5565/rev/educar.474