نتایج جستجو برای: analytical migration science

تعداد نتایج: 763590  

Journal: :gastroenterology and hepatology from bed to bench 0
fariba fathi department of chemistry, sharif university of technology, tehran, iran fatemeh ektefa department of chemistry, tarbiat modares university, tehran, iran mehrdad hagh-azali gastroenterology and liver diseases research center, shahid beheshti university of medical sciences, tehran, iran hamid asadzadeh aghdaie basic and molecular epidemiology of gastroenterology disorder research center, shahid beheshti university of medical sciences, tehran, iran

metabonomics and other “omics” fields are essential science in analytical chemistry. modern analytical instruments such as proton nuclear magnetic resonance ( 1 h nmr) can be provided the great quantity of analytical information. in order to assign unknown samples, chemometrics methods recognition build classification model based on experimental data.  firstly some current strategies for regard...

2006
Ben Marshall Michael Townsley

Data mining is a term that describes a suite of computationally intense processes that have developed in the commercial arena which explore relationships within large databases in order to extract value and, ultimately, profit. This report looks at whether the criminological community can benefit from these seemingly powerful data analysis tools and whether such tools can help to further theore...

2016
Philipp Mayr Douglas Tudhope Koraljka Golub Christian Wartena Ernesto William De Luca

1 GESIS Leibniz-Institute for the Social Sciences, Cologne, Germany [email protected] 2 Hypermedia Research Group, Faculty of Computing, Engineering and Science, University of South Wales, UK [email protected] 3 Department of Library and Information Science, School of Cultural Sciences, Faculty of Arts and Humanities, Linnaeus University, Sweden [email protected] 4 Hochs...

Journal: :Journal of evolutionary biology 2006
M Alleaume-Benharira I R Pen O Ronce

We use individual-based stochastic simulations and analytical deterministic predictions to investigate the interaction between drift, natural selection and gene flow on the patterns of local adaptation across a fragmented species' range under clinally varying selection. Migration between populations follows a stepping-stone pattern and density decreases from the centre to the periphery of the r...

2015
Mohammad Rezaee Faezeh Khalilian Mohammad Reza Pourjavid Shahram Seidi Alberto Chisvert Mohamed Abdel-Rehim

1Nuclear Fuel Cycle Research School, Nuclear Science & Technology Research Institute, Atomic Energy Organization of Iran, P.O. Box 14395-836, Tehran, Iran 2Department of Chemistry, College of Basic Science, Islamic Azad University, Yadegar-e-Imam Khomeini (RAH) Branch, P.O. Box 18155-144, Tehran, Iran 3Department of Chemistry, K.N. Toosi University of Technology, P.O. Box 15875-4416, Tehran, Ir...

Journal: :Nano letters 2012
Simon Kurasch Jani Kotakoski Ossi Lehtinen Viera Skákalová Jurgen Smet Carl E Krill Arkady V Krasheninnikov Ute Kaiser

Grain boundary (GB) migration in polycrystalline solids is a materials science manifestation of survival of the fittest, with adjacent grains competing to add atoms to their outer surfaces at each other's expense. This process is thermodynamically favored when it lowers the total GB area in the sample, thereby reducing the excess free energy contributed by the boundaries. In this picture, a cur...

2017
Motonori Yoshida

It is often said that population inflow into cities in Japan has softened due to Japan's recession in recent years. Moreover, considering the migration trends for each region, Thkyo and Nagoya area continue to experience net in-migration, while Osaka region net out-migration. Therefore, in order to probe into the determinants of migration in Japan, we conduct a causality analysis of the out· mi...

2009
Andreas Andersson Paolo Vanini

We consider the modelling of credit migration risk and the pricing of migration derivatives. To construct a Point-in-Time (PIT) rating migration matrix as the underlying value for derivative pricing we show first that the Affine Markov Chain models is not sufficient to generate PIT migration matrices in both, an economic boom and contraction. We show that the introduction of rating direction an...

2015
Kathleen Neumann Henk Hilderink

Environmental change is an acknowledged factor influencing human migration. Analytical research regarding the relationship between the environment and human migration has increased in recent years yet still faces numerous hurdles, partly due to limited availability of suitable data. We review available data and methodologies for investigating the environment-migration nexus, identifying data in...

2012
Shigeyuki Magi Etsu Tashiro Masaya Imoto

The aim of this study was to analyze the diversity and consistency of regulatory signaling in cancer cell migration, using a chemical genomic approach. The effects of 34 small molecular compounds were assessed quantitatively by wound healing assay in ten types of migrating cells. Hierarchical clustering was performed on the subsequent migration inhibition profile of the compounds and cancer cel...

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