نتایج جستجو برای: fdc shifting
تعداد نتایج: 29921 فیلتر نتایج به سال:
different approaches have been presented for estimating river environmental flow which hydrological approach has a lot addressed because of its need to access to limited data and moderately rapid assessment. this approach incorporates various methods therefore comparison between results of different methods is essential. the objective of this study is to investigate and compare the consequences...
تعیین جریان زیست محیطی در سامانه های رودخانه ای و سایر اکوسیستم های آبی، علم جدیدی در ایران و دیگر کشورهای در حال توسعه است. این پژوهش به ارزیابی نیاز اکولوژیکی در یک رودخانه، با روشهای مختلف و اکوهیدرولوژیکی می پردازد. در این تحقیق، نیاز زیست محیطی رودخانه زرینه رود (در شمال غرب ایران) در محدوده مطالعاتی پایین دست سد بوکان تا محل ورود به دریاچه ارومیه (در حدود 140 کیلومتر) با چهار روش t...
Environmental flow is explained as the period of time, quantity and the amount of required water for maintaining the water, fresh, the river’s ecosystem, human beings’ welfare and the life depending on the water. The main goal of this paper is to investigate and compare the hydrological methods including Tennant, aquatic flow, Tessman, analysis of the flow duration curve and the flow duration c...
طرح های توسعه منابع آب دارای اثرات زیست محیطی متعددی می باشد، که بر هم خوردن رژیم طبیعی رودخانه ها و کاهش آب های سطحی پایین دست از مهم ترین آن است. برآورد نیاز زیست محیطی در اکوسیستم های آبی پایین دست، از اهمیت ویژهای برخوردار است. هدف اصلی از تحقیق حاضر برآورد جریان زیست محیطی رودخانه نازلو از روش های موجود هیدرولوژیکی، هیدرولیکی و شبیه ساز زیستگاه، در ماه های مختلف سال بوده است. در این بررسی ...
Objective : to evaluate clinical-economic feasibility and impact of follitropin alfa on the state healthcare budget Russian Federation in population women with diagnosed infertility poor ovarian response, who undergo treatment assisted reproductive technologies (ART). Material methods . A cost minimization analysis response underwent ART was performed. The model included costs required for stim...
PURPOSE To compare the safety and efficacy of fixed-dose tafluprost/timolol combination (Taf/T-FDC) with those of fixed-dose latanoprost/timolol combination (Lat/T-FDC) by measuring the intraocular pressure (IOP)-lowering effect, ocular pharmacokinetics, and ocular surface toxicity. METHODS The IOP-lowering effect of Taf/T-FDC and Lat/T-FDC in ocular normotensive monkeys was evaluated at 4 an...
A flow-duration curve (FDC) illustrates the relationship between the frequency and magnitude of daily, weekly and monthly stream flow. Applications of FDC are of interest for many hydrological problems related to hydropower generation, river and reservoir sedimentation, water quality assessment, water-use assessment, water allocation and habitat suitability. This study was carried out in 33 sel...
INTRODUCTION Fixed-dose combinations (FDC) contain two or more active ingredients. The effective patent and exclusivity life of FDC compared to single active ingredient has not been assessed. OBJECTIVES Trends in FDA approved FDC in the period 1980-2012 and time lag between approval of FDC and single active ingredients in the combination were assessed, and the effective patent and exclusivity...
Prion diseases are characterised by the accumulation of PrP(Sc), an abnormally folded isoform of the cellular prion protein (PrP(C)), in affected tissues. Following peripheral exposure high levels of prion-specific PrP(Sc) accumulate first upon follicular dendritic cells (FDC) in lymphoid tissues before spreading to the CNS. Expression of PrP(C) is mandatory for cells to sustain prion infection...
Follicular dendritic cells (FDC) are unique nonlymphoid cells found only in germinal centers. FDC can be distinguished from other accessory cells based on a characteristic set of cell surface markers. It is known that FDC are able to rescue germinal center B cells from apoptosis. To investigate the role of FDC in the process of selection and maturation of B cells during germinal center reaction...
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