نتایج جستجو برای: essential science indicator

تعداد نتایج: 878156  

2016
Stefanie Haustein Zohreh Zahedi

The probability of a paper being mentioned on Twitter, Facebook, in a blog post or the news or being saved to Mendeley depends on its discipline. For example, 31.7% of recent biomedical and health sciences journal articles get tweeted, while the Twitter coverage in mathematics and computer science is as low as 7.5% (Haustein, Costas, & Larivière, 2015). The coverage, density and distribution of...

Journal: :IJEBM 2012
Tzu-An Chiang Hsing Hsu Chia-Wei Hung

Design for Environment (DfE) has become a main stream policy that aims to gratify the human needs while preserving the ecological environment. Nowadays many countries have established environmental laws. Hence, companies are being asked to provide the eco-profiles of products. In order to assist electronic companies to execute the life cycle assessment (LCA) and construct the eco-profiles for a...

2012
Mark S. Bentley Andrew J. Ball David K. Potter Ian P. Wright John C. Zarnecki

In situ multi-frequency measurements of magnetic susceptibility as an indicator of planetary regolith maturity Journal Article How to cite: Bentley, Mark S.; Ball, Andrew J.; Potter, David K.; Wright, Ian P. and Zarnecki, John C. (2009). In situ multi-frequency measurements of magnetic susceptibility as an indicator of planetary regolith maturity. Planetary and Space Science, 57(12), pp. 1491–1...

2016
D. Deugo

Students experiencing difficulty with their studies don’t often identify themselves as students in need of support. The Science Student Success Centre at Carleton University actively seeks out these science students to give them the help they require. One indicator of need is a student’s grades. Another indicator is attendance in class. In this paper, we describe how we use beacon technology to...

Journal: :CoRR 2011
Lutz Bornmann Loet Leydesdorff

Bornmann and Leydesdorff (in press) proposed methods based on Web-of-Science data to identify field-specific excellence in cities where highly-cited papers were published more frequently than can be expected. Top performers in output are cities in which authors are located who publish a number of highly-cited papers that is statistically significantly higher than can be expected for these citie...

Journal: :J. Informetrics 2012
Lutz Bornmann Loet Leydesdorff

Bornmann and Leydesdorff (2011) proposed methods based on Web of Science data to identify field-specific excellence in cities where highly cited papers were published more frequently than can be expected. Top performers in output are cities in which authors are located who publish a number of highly cited papers that is statistically significantly higher than can be expected for these cities. U...

Journal: :JASIST 2007
Loet Leydesdorff

In addition to science citation indicators of journals like impact and immediacy, social network analysis provides a set of centrality measures like degree, betweenness, and closeness centrality. These measures are first analyzed for the entire set of 7,379 journals included in the Journal Citation Reports of the Science Citation Index and the Social Sciences Citation Index 2004, and then also ...

Journal: :فصلنامه علمی اکوفیزیولوژی گیاهان زراعی 0
حسن فراهانی کارشناس بخش گیاهان دارویی سازمان اتکا جواد میرعرب استادیار بخش گیاهان دارویی سازمان اتکا محسن نوزاد مقدم استادیار بخش گیاهان دارویی سازمان اتکا بهنام قربانی استادیار بخش تحقیقات و توسعه سازمان اتکا مصطفی خدادادی دانشجوی دکتری اصلاح نباتات دانشگاه تربیت مدرس، ایمیل: [email protected]، تلفن: 09351305826

using medicinal plants as drug or spice in food have significantly increased in recent decades. also, production of this plants restricted by drought stress. therefor the aim of this was investigation of drought stress effect on fruit and essential oil yield of different endemic coriander genotypes. in this regard, 14 coriander genotypes subjected to two levels of water treatments in two separa...

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