نتایج جستجو برای: asia

تعداد نتایج: 55022  

Journal: :American journal of human genetics 1999
B Su J Xiao P Underhill R Deka W Zhang J Akey W Huang D Shen D Lu J Luo J Chu J Tan P Shen R Davis L Cavalli-Sforza R Chakraborty M Xiong R Du P Oefner Z Chen L Jin

The timing and nature of the arrival and the subsequent expansion of modern humans into eastern Asia remains controversial. Using Y-chromosome biallelic markers, we investigated the ancient human-migration patterns in eastern Asia. Our data indicate that southern populations in eastern Asia are much more polymorphic than northern populations, which have only a subset of the southern haplotypes....

2013
Siew C. Ng

SN The incidence and prevalence of inflammatory bowel disease (IBD) are lower in Asia than in the West. However, time trend studies from Asia (Japan, Korea, and Hong Kong) have shown that the incidence of IBD has increased over the past 2 decades. Differences have also been observed in the incidence of IBD across different geographic regions within Asia. In Asia, ulcerative colitis (UC) is more...

2009
R. Ravaud G. Lemarquand V. Lemarquand

This paper presents three dimensional study of a ferrofluid seal, its centering effect and its static capacity. Thus, a method based on a potential energy criterion has been put forward to study the seal shape. But such a use of ferrofluid seals is interesting only if the magnetic field created by the permanent magnets saturates totally the ferrofluid. Two cylindrical structures consisting of t...

2017
C. Aujean Lee

This study demonstrates how multiple methods can inform national survey data collection efforts for Indigenous populations using Pacific Islanders as a case study. National data surveys are oftentimes limited in how they collect data on small populations due to data suppression, and they lack nuance in how they aggregate distinct populations. I conduct linear regression models of U.S. Census da...

Journal: :IEEE Data Eng. Bull. 2002
Alexander Maedche Steffen Staab Rudi Studer York Sure-Vetter Raphael Volz

Community web sites exhibit two dominating properties: They often need to integrate many different information sources and they require an adequate web site management system. SEAL (SEmantic portAL) is a conceptual model that exploits ontologies for fulfilling the requirements set forth by these two properties at once. The ontology provides a high level of sophistication for web information int...

2015
A. S. Taschetto G. A. Meehl M. H. England

the seasonal shift of the Inter-Tropical Convergence Zone that modulates deep convection over the anomalous SST. This demonstrates the importance of the mean seasonal atmospheric circulation in modulating the remote teleconnections from the central-western Pacific warming in the model. However, it is suggested here that the cooling in the eastern Pacific associated with El Niño Modoki counterac...

2015
Kejia Chu Ning Zhang Zhongfei Chen Marc A. Rosen

The medical care system in China has experienced significant changes during three decades of reform, and thus result in a need to investigate the effects of medical reform. This paper investigates the technical efficiency of Chinese hospitals in 31 provinces during the period from 2002 to 2013 by proposing a new global generalized directional distance function (GGDDF) approach taking account of...

Journal: :Computer Vision, Graphics, and Image Processing 1984
Ting-Jun Fan Wen-Hsiang Tsai

A combination of image processing and matching techniques is proposed to solve the problem of seal identification. The techniques include thresholding, rotation, thinning, reexpansion, and finally matching of seal images. The principle for identification is based on the fact that the spatial distributions of the stroke skeletons of the characters engraved by human hands on two distinct seals wi...

2009
Helen Hasan Alanah Kazlauskas

This paper examines aspects of the field of Information Systems (IS) concerned with its diversity and with the rapid changes within the discipline that have been incurred by the continued evolution of the IS artefact. This examination is done in order to establish the suitability of the Cynefin framework, developed for knowledge management, as a suitable tool for sense-making in IS. A descripti...

Journal: :J. Symb. Comput. 1991
Derek F. Holt

The general problem of computing the normalizer, in a finite permutat ion group G, of a subgroup H has long been recognized as being unusually difficult to solve efficiently. The corresponding problem for centralizers is much easier, although this too has some bad cases. The solution to the centralizer problem is relatively simple and probably difficult to improve upon, whereas there seems to b...

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