نتایج جستجو برای: bio indicator
تعداد نتایج: 135279 فیلتر نتایج به سال:
a Earth Resources Technology, Inc., Annapolis Junction, MD 20701, USA National Aeronautics and Space Administration, Goddard Space Flight Center, Greenbelt, MD 20771, USA c Joint Center for Earth Systems Technology, University of Maryland Baltimore County, Baltimore, MD 21250, USA Goddard Earth Science Technology Center, University of Maryland Baltimore County, Baltimore, MD 21250, USA e Sigma ...
Study of the osteological development in fishes is important from fisheries, biology and aquaculture points of views. It can be used as an early bio-indicator of non-optimal rearing conditions. The Caspian roach, Rutilus caspicus is a native cyprinid fish of the Caspian Sea that its artificial propagation has fulfilled in hatcheries to recruit its natural stocks. Hence, this study was conducted...
آستروسیت ها که عمده ترین سلول های غیر نورونی در مغز می باشند، در پشتیبانی و نگهداری نورون ها نقش دارند. دخالت مسیر پیام رسانی pi3k/akt در ترشح فاکتور محافظ عصبی tgf-? در آستروسیت ها، القا شده با استرادیول، گزارش شده است. در این پایان نامه احتمال شرکت مسیر پیام رسانی canonical wnt در تولید فاکتورهایی از خانواده ی tgf-? نظیر tgf-?و bmp-4 توسط آستروسیت ها بررسی گردید. آستروسیت های جداشده از کورتکس...
The aims of this paper are to determine the reliability and validity of Entrepreneurial Attitude Orientation (EAO) scale as an instrument to measure the entrepreneurial attitudes among business students of higher education institutes of Malaysia. Initially, the EAO scale consisted of 75 items concerning 4 conceptual subscales: achievement in business (23 items), perceived personal control of bu...
Ecological indicators, historical land use, and invasive species detection in the lower Iowa River floodplain." MA has been approved by the Examining Committee for the thesis requirement for the Master of Arts degree in Geography at the May 2014 graduation.
A systematic empirical comparison of different approaches for normalizing citation impact indicators
We address the question how citation-based bibliometric indicators can best be normalized to ensure fair comparisons between publications from different scientific fields and different years. In a systematic large-scale empirical analysis, we compare a traditional normalization approach based on a field classification system with three source normalization approaches. We pay special attention t...
study of the osteological development in fishes is important from fisheries, biology and aquaculture points of views. it can be used as an early bio-indicator of non-optimal rearing conditions. the caspian roach, rutilus caspicus is a native cyprinid fish of the caspian sea that its artificial propagation has fulfilled in hatcheries to recruit its natural stocks. hence, this study was conducted...
The poverty mapping methodology for estimating welfare rankings from small areas has proven to be useful in guiding allocation of government funds, regional planning, and general policy formulation. Nevertheless, poverty mapping also suffers from a series of by now well recognized shortcomings. We apply an approach based on first order dominance (FOD) to small area estimation. Five advantages t...
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