نتایج جستجو برای: DST
تعداد نتایج: 2252 فیلتر نتایج به سال:
مقدمه: حوادث ناشی از کار سالانه هزاران کارگر را در سراسر دنیا و به ویژه کشورهای در حال توسعه درگیر می سازد که نتیجه آن از کارافتادگی نیروی کار در نهایت تحمیل هزینه های سنگین به صنعت آن کشور است. یک چهارم جمعیت دنیا مشمول دوبار تغییر یک ساعته (برنامه استفاده بهتر از روشنایی روز و صرفه جویی در مصرف انرژی یا dst ) می باشند. بیش از 70 کشور در سراسر جهان در برنامه dst مشارکت می نمایند. روش بررسی: ای...
The DST combination rule is studied and corresponding rigorous proofs of its properties are given, including two properties, i.e., sequential DST combination rule meets the commutative law and associative law; the sequential DST combination rule and the centralized DST combination rule are equivalent. The two properties show that the fusion result of multiple evidence sources is irrelevant to f...
In this paper, fast and efficient discrete sine transformation (DST) algorithms are presented based on the factorization of sparse, scaled orthogonal, rotation, rotation-reflection, and butterfly matrices. These algorithms are completely recursive and solely based on DST I-IV. The presented algorithms have low arithmetic cost compared to the known fast DST algorithms. Furthermore, the language ...
Advocates of dynamical systems theory (DST) sometimes employ revolutionary rhetoric. In an attempt to clarify how DST models differ from others in cognitive science, I focus on two issues raised by DST: the role for representations in mental models and the conception of explanation invoked. Two features of representations are their role in standing-in for features external to the system and the...
We examine developmental systems theory (DST) with two questions in mind: What does DST explain? How does DST explain it? To answer these questions, we start by reviewing major contributions to the origins of DST: the introduction of the idea of a "developmental system", the idea of probabilistic epigenesis, the attention to the role of information in the developmental system, and finally the e...
Alignment of new tuberculosis drug regimens and drug susceptibility testing: a framework for action.
New tuberculosis drug regimens are creating new priorities for drug susceptibility testing (DST) and surveillance. To minimise turnaround time, rapid DST will need to be prioritised, but developers of these assays will need better data about the molecular mechanisms of resistance. Efforts are underway to link mutations with drug resistance and to develop strain collections to enable assessment ...
Several systematic studies have evaluated serial dexamethasone suppression tests (DST) in patients with major depression who were treated with antidepressant medications. DST changes were noted to parallel clinical improvement in most recovering patients. If serial DSTs are a valid state-related correlate of depressive pathophysiology, all types of effective antidepressant treatment should resu...
Over the past 10 years, the Peruvian National Tuberculosis (TB) Program, the National Reference Laboratory (NRL), Socios en Salud, and US partners have worked to strengthen the national TB laboratory network to support treatment of multidrug-resistant TB. We review key lessons of this experience. The preparation phase involved establishing criteria for drug susceptibility testing (DST), selecti...
Severe storms (Dst) and Forbush decreases (FD) during cycle 23 showed that maximum negative Dst magnitudes usually occurred almost simultaneously with the maximum negative values of the Bz component of interplanetary magnetic field B, but the maximum magnitudes of negative Dst and Bz were poorly correlated (+0.28). A parameter Bz(CP) was calculated (cumulative partial Bz) as sum of the hourly n...
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