نتایج جستجو برای: history

تعداد نتایج: 351234  

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2016
Margaret C Nelson Scott E Ingram Andrew J Dugmore Richard Streeter Matthew A Peeples Thomas H McGovern Michelle Hegmon Jette Arneborg Keith W Kintigh Seth Brewington Katherine A Spielmann Ian A Simpson Colleen Strawhacker Laura E L Comeau Andrea Torvinen Christian K Madsen George Hambrecht Konrad Smiarowski

This paper identifies rare climate challenges in the long-term history of seven areas, three in the subpolar North Atlantic Islands and four in the arid-to-semiarid deserts of the US Southwest. For each case, the vulnerability to food shortage before the climate challenge is quantified based on eight variables encompassing both environmental and social domains. These data are used to evaluate t...

Journal: :Ecology letters 2014
Murilo S Dias Thierry Oberdorff Bernard Hugueny Fabien Leprieur Céline Jézéquel Jean-François Cornu Sébastien Brosse Gael Grenouillet Pablo A Tedesco

The relative importance of contemporary and historical processes is central for understanding biodiversity patterns. While several studies show that past conditions can partly explain the current biodiversity patterns, the role of history remains elusive. We reconstructed palaeo-drainage basins under lower sea level conditions (Last Glacial Maximum) to test whether the historical connectivity b...

Journal: :پژوهش های علوم تاریخی 0
رسول جعفریان دانشیار گروه تاریخ دانشگاه تهران سید رضا لواسانی دانشجوی کارشناسی ارشد کلام و عقاید، دانشکده علوم حدیث، تهران

history - narrative interaction is one of the most important issues have being discussed in critical philosophy of history. a historian normally compiles the historical events, as the essential parts of history recording, and imports them besides some connectors through a narrative structure.  the existing relation between such a narrative and the reality is of considerable concerns which are e...

Nuclear Medicine was established in Myanmar in 1963 by Dr Soe Myint and International Atomic Energy expert Dr R. Hochel at Yangon General Hospital. Nuclear medicine diagnostic and therapeutic services started with Probe Scintillation Detector Systems and rectilinear scanner. In the early stage, many Nuclear Medicine specialists from the International Atomic Energy Agency (IAEA) spent some time ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه صنعتی اصفهان 1389

run-out-table (rot) is located between last finishing stand and down coiler in a hot strip mill. as the hot steel strip passes from rot, water jets impact on it from top and bottom and strip temperature decreases approximately from 800-950 °c to 500-750°c. the temperature history that strip experience while passing through rot affects significantly the metallurgical and mechanical properties, s...

Journal: :ВИВЛIОθИКА: E-Journal of Eighteenth-Century Russian Studies 2014

Journal: :تحقیقات مالی 0
دکتر علی پارسائیان

this article is based on a study done by professor fred weston. in this article the evolution of financial management concepts is explained . the history of financial ideas is presented in eight sections as follows: 1- an overview of central ideas of finance 2- historical review of the impact of economic developments on the content of the finance field. 3- the emergence of selected areas of fin...

Journal: :genetics in the 3rd millennium 0
محمد حسن کریمی نژاد

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