نتایج جستجو برای: t εi

تعداد نتایج: 703228  

Journal: :محیط شناسی 0
محمدعلی فیض پور استادیار و عضو هیئت علمی دانشکدۀ اقتصاد، مدیریت و حسابداری، دانشگاه یزد ابوالفضل شاه محمدی مهرجردی کارشناس ارشد علوم اقتصادی، گروه اقتصاد، دانشگاه پیام نور، تهران، ایران فاطمه آسایش کارشناس ارشد علوم اقتصادی، دانشگاه شهید باهنر کرمان

introduction the environmental issues have been considered in all development plans of iran. for example, the forty-fifth, forty-seventh, and fiftieth principles of “iran constitution” directly refer to environmental issues. according to the future outlook of the islamic republic of iran “having the favorable living environment” is regarded as the characteristics of the iranian society in the h...

2016
Yan-Xia Dang Juan Wang Maia Martcheva Xue-Zhi Li

A two-strain avian influenza model with distributed delay and environmental spread in humans is investigated. The model describes well the transmission of avian influenza between poultry and humans. In this study, we introduce the behavior of both high pathogenic avian influenza (HPAI) as strain two and low pathogenic avian influenza (LPAI) as strain one in a domestic poultry population. We als...

Background: Synbiotics have been used in the prevention and treatment of various immunological diseases. We aimed to investigate the synergistic clinical and immunologic effects of synbiotics and subcutaneous allergen immunotherapy (SCIT) combination in patients with allergic rhinitis. Materials and Methods: Nineteen individuals with all...

Let $G$ be a weighted digraph, $s$ and $t$ be two vertices of $G$, and $t$ is reachable from $s$. The logical $s$-$t$ min-cut (LSTMC) problem states how $t$ can be made unreachable from $s$ by removal of some edges of $G$ where (a) the sum of weights of the removed edges is minimum and (b) all outgoing edges of any vertex of $G$ cannot be removed together. If we ignore the second constraint, ca...

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