منابع مشابه
Does Quantity Make a Difference?
Do highly productive researchers have significantly higher probability to produce top cited papers? Or does the increased productivity in science only result in a sea of irrelevant papers as a perverse effect of competition and the increased use of indicators for research evaluation and accountability focus? We use a Swedish author disambiguated dataset consisting of 48,000 researchers and thei...
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When it comes to health risks, sex does matter. Women are twice as likely as men to get multiple sclerosis, rheumatoid arthritis, and migraines. They're also more likely to get cataracts, hepatitis, and thyroid disease. Women experience depression about twice as often as men. And irritable bowel syndrome (IBS) is thought to affect twice as many women as men. Although men have more heart attacks...
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Background: Due to the current trends towards replacing axillary dissection with radiotherapy, the need for more precise definition for different nodal stations becomes a must to ensure safe and adequate dose coverage. So, our study aimed to evaluate the coverage of axillary nodal volumes based on Project on Cancer of the Breast (PROCAB) guidelines, for cases previously treated with our standar...
متن کاملDoes Head Start Make a Difference?
The impact of participation in Head Start is investigated using a national sample of children. Comparisons are drawn between siblings to control for selection. Head Start is associated with large and significant gains in test scores among both whites and African-Americans. However, among African-Americans, these gains are quickly lost. Head Start significantly reduces the probability that a whi...
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An inconsistency is pointed out between formidable and thus discouraging hurdles facing peace education in the context of intractable conflicts and actual, encouraging research findings of such programs. It is suggested that the hurdles pertain to the most deep-seated and thus unchangeable convictions constituting the backbone of a group’s collective narrative. On the other hand, the change-obj...
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ژورنال
عنوان ژورنال: Materials Today
سال: 2004
ISSN: 1369-7021
DOI: 10.1016/s1369-7021(04)00168-3