منابع مشابه
Candidates for non–baryonic dark matter
The presence of large amounts of non–luminous components in the Universe has been identified along the years by different means and on different scales: on the galactic scale, the flatness of the rotational curves of many galaxies indicates a dark component which is presumably distributed as a halo around the galaxies [1]; clusters points toward a sizeable contribution of unseen matter distribu...
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Non-functional requirements (NFRs) are rarely taken in account in most software development. There are some reasons that can help us to understand why these requirements are not explicitly dealt with: their complexity, NFRs are usually stated only informally, their high abstraction level and the rare support of languages, methodologies and tools. In this scenario, we concentrate on defining a l...
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The number needed to treat (NNT) and its counterpart, the number needed to harm (NNH), are commonly used measures of effect in studies of mental health treatments. The NNT is an absolute measure, which conveys a more direct and intuitive impression of the effect on an individual than the absolute risk reduction (ARR). To illustrate this, consider an imaginary trial comparing the effects of cogn...
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ژورنال
عنوان ژورنال: International Journal of Modern Physics A
سال: 2005
ISSN: 0217-751X,1793-656X
DOI: 10.1142/s0217751x05022214