Primary biliary cirrhosis (PBC) is a well-known but uncommon chronic liver disease that is presumed to be of autoimmune etiology. Recently, investigations in British Columbia (BC), a province of Canada situated along ...Primary biliary cirrhosis (PBC) is a well-known but uncommon chronic liver disease that is presumed to be of autoimmune etiology. Recently, investigations in British Columbia (BC), a province of Canada situated along the Pacific North-West of North America, have suggested that PBC is not a rare disease amongst BC's Aboriginal (i.e. First Nations) communities. Geographically, BC is adjacent to South East Alaska, an American state that has also reported an increased prevalence of PBC amongst its Aboriginal communities. In this article, the medical evidence supporting a hypothesis of increased risk of PBC amongst BC's First Nations communities is reviewed. Evidence suggesting that autoimmune hepatitis is also more likely amongst BC's First Nations communities is also presented.展开更多
Purpose: Sports participation and physical fitness are widely beneficial for young people, yet activity levels among young people are declining.Despite growing popular media attention on the participation of sexual mi...Purpose: Sports participation and physical fitness are widely beneficial for young people, yet activity levels among young people are declining.Despite growing popular media attention on the participation of sexual minority(e.g., lesbian, gay, and bisexual) youth in sports and various campaigns to improve the often homophobic climate of sports, there is limited evidence that sexual minority youth participate in sports. Our aim was to provide a current portrait of sports participation among 3 groups of sexual minority youth(e.g., lesbian, gay, and bisexual) in British Columbia, Canada, as well as to document population trends.Methods: Pooled population-level data from British Columbia, Canada(n = 99,373) were used to examine trends and disparities in sports participation among sexual minority and heterosexual youth. Age-adjusted logistic regression models were used to examine changes in participation over time and disparities in participation over time(1998—2013).Results: We found an overall decline in sports participation and physical activity(PA) for all youth. Sexual minority students were less likely to participate in formal sports(with a coach) and informal sports(without a coach) compared with their heterosexual peers. The disparity in participating in informal sports between heterosexual and sexual minority youth has narrowed over time for some sexual orientation groups, whereas the disparity in participating in formal sports has widened over time in some cases.Conclusion: This study provides a comprehensive examination of sports participation among sexual minority youth over the past 15 years.Despite changing societal attitudes and laudable efforts to reduce homophobia in sports, results suggest that there are continued barriers to participation for sexual minority youth. Further research is needed to understand the factors that limit sports participation for these youth and to inform program development. PA is critical to lifelong health and well-being, and thus continued efforts are needed to increase the sports participation of sexual minority youth in particular.展开更多
This research project analyzes the reading and writing practices used in five first and second year undergraduate courses of different disciplines at a Colombian university. During one semester, we conducted polls, cl...This research project analyzes the reading and writing practices used in five first and second year undergraduate courses of different disciplines at a Colombian university. During one semester, we conducted polls, class observations, and interviews with teachers. The data collected contain information about the strategies that teachers use to guide, clarify, and evaluate the readings they assigned. It also informs about the ways in which teachers classify texts and participate in the process of composing, editing, and evaluating the students＇ writing. Finally, the data inform about the role that teachers assign to the practices of reading and writing in their courses. The results of the study prove that there is a misconception based on the idea that there is a unique way of understanding and practicing reading and writing in the academia, and that there is a set of unique strategies that are transferable to any discipline or field of study. The cases analyzed in this study suggest that it would be much more effective to incorporate intensive reading and writing strategies in disciplinary courses, than to concentrate on first year writing courses.展开更多
The logic of hegemonic domination that was established in Colombia and in Latin America after the Conquest is based on a scheme of elitist power. Using the perspective of the Italian sociologist Vilfredo Pareto, we ca...The logic of hegemonic domination that was established in Colombia and in Latin America after the Conquest is based on a scheme of elitist power. Using the perspective of the Italian sociologist Vilfredo Pareto, we can classify these elites in lions or foxes. In the first case, they use the force and the violence （the Macht of Weber） to impose their sovereignty; in the second case, they use persuasion and the masquerade （the Herrschaft）---the propaganda. This power is based on a more stable legitimacy and is able to transform itself in a matrix-effect reality. This form of social control has allowed the Colombian （and Latin American） 61ites the uncontrolled starvation of the natural resources found in these territories, under the influence of a wild capitalism which is strictly linked to the mass media community of the continent. This paper will expose the panorama of community media with an ethnic perspective in Colombia that hopefully works as process to facilitate the building of social links based on dialogue, reconciliation, respect, and participation, acting as watchdog of economic and political power, reporting the injustice and looking for peace solution in the region.展开更多
This paper studies and analyzes the response of helical stairs as helicoidal shells in earthquake zones. The response of helical stairs under gravity loads was analyzed by both the membrane theory and finite element m...This paper studies and analyzes the response of helical stairs as helicoidal shells in earthquake zones. The response of helical stairs under gravity loads was analyzed by both the membrane theory and finite element methods. The non-linear response of helical stairs, when subjected to UBC （Uniform Building Code） dynamic and static equivalent earthquake loads, were obtained using finite element models. These responses were compiled and analyzed in order to draw recommendations for the preliminary design of helical stairs in earthquake zones. The analysis of the results obtained showed that helical stairs are stiffer and lighter than regular ones.展开更多
Price：US$40Hardcover,272 pages Published by Columbia University PressAround the year 2000 Internet literature boomed in China,outselling all conventionally published books in main city bookshops.Unlike the many U.K.a...Price：US$40Hardcover,272 pages Published by Columbia University PressAround the year 2000 Internet literature boomed in China,outselling all conventionally published books in main city bookshops.Unlike the many U.K.and U.S.scholars that highlight censorship over the Internet in China,Professor Michel Hockx,author of Internet Literature in China,has expanded his research to an exploration of network literature content,and exactly what its展开更多
2017年6月13日,中国外交部长王毅同巴拿马共和国副总统兼外长德圣马洛（Isabel Saint Malo）在北京举行会谈并签署了《中华人民共和国和巴拿马共和国关于建立外交关系的联合公报》。公报宣布,中华人民共和国和巴拿马共和国,根据两国人...2017年6月13日,中国外交部长王毅同巴拿马共和国副总统兼外长德圣马洛（Isabel Saint Malo）在北京举行会谈并签署了《中华人民共和国和巴拿马共和国关于建立外交关系的联合公报》。公报宣布,中华人民共和国和巴拿马共和国,根据两国人民的利益和愿望,兹决定自公报签署之日起相互承认并建立大使级外交关系。展开更多
We are very pleased to have the opportunity to make a ded- ication in this issue to mark the 80th birthday of Dr. Ronald Breslow, S. L. Mitchill Professor of Chemistry and University Professor of Columbia University, ...We are very pleased to have the opportunity to make a ded- ication in this issue to mark the 80th birthday of Dr. Ronald Breslow, S. L. Mitchill Professor of Chemistry and University Professor of Columbia University, USA, and to honor his many contributions to chemistry, education, and China-US scientific exchanges over the years. Three articles by Drs. LIU Lei of Tsinghua University ,展开更多
文摘Primary biliary cirrhosis (PBC) is a well-known but uncommon chronic liver disease that is presumed to be of autoimmune etiology. Recently, investigations in British Columbia (BC), a province of Canada situated along the Pacific North-West of North America, have suggested that PBC is not a rare disease amongst BC's Aboriginal (i.e. First Nations) communities. Geographically, BC is adjacent to South East Alaska, an American state that has also reported an increased prevalence of PBC amongst its Aboriginal communities. In this article, the medical evidence supporting a hypothesis of increased risk of PBC amongst BC's First Nations communities is reviewed. Evidence suggesting that autoimmune hepatitis is also more likely amongst BC's First Nations communities is also presented.
基金funded by grants #CPP 86374 and #MOP 119472 from the Canadian Institutes of Health Research
文摘Purpose: Sports participation and physical fitness are widely beneficial for young people, yet activity levels among young people are declining.Despite growing popular media attention on the participation of sexual minority(e.g., lesbian, gay, and bisexual) youth in sports and various campaigns to improve the often homophobic climate of sports, there is limited evidence that sexual minority youth participate in sports. Our aim was to provide a current portrait of sports participation among 3 groups of sexual minority youth(e.g., lesbian, gay, and bisexual) in British Columbia, Canada, as well as to document population trends.Methods: Pooled population-level data from British Columbia, Canada(n = 99,373) were used to examine trends and disparities in sports participation among sexual minority and heterosexual youth. Age-adjusted logistic regression models were used to examine changes in participation over time and disparities in participation over time(1998—2013).Results: We found an overall decline in sports participation and physical activity(PA) for all youth. Sexual minority students were less likely to participate in formal sports(with a coach) and informal sports(without a coach) compared with their heterosexual peers. The disparity in participating in informal sports between heterosexual and sexual minority youth has narrowed over time for some sexual orientation groups, whereas the disparity in participating in formal sports has widened over time in some cases.Conclusion: This study provides a comprehensive examination of sports participation among sexual minority youth over the past 15 years.Despite changing societal attitudes and laudable efforts to reduce homophobia in sports, results suggest that there are continued barriers to participation for sexual minority youth. Further research is needed to understand the factors that limit sports participation for these youth and to inform program development. PA is critical to lifelong health and well-being, and thus continued efforts are needed to increase the sports participation of sexual minority youth in particular.
文摘This research project analyzes the reading and writing practices used in five first and second year undergraduate courses of different disciplines at a Colombian university. During one semester, we conducted polls, class observations, and interviews with teachers. The data collected contain information about the strategies that teachers use to guide, clarify, and evaluate the readings they assigned. It also informs about the ways in which teachers classify texts and participate in the process of composing, editing, and evaluating the students＇ writing. Finally, the data inform about the role that teachers assign to the practices of reading and writing in their courses. The results of the study prove that there is a misconception based on the idea that there is a unique way of understanding and practicing reading and writing in the academia, and that there is a set of unique strategies that are transferable to any discipline or field of study. The cases analyzed in this study suggest that it would be much more effective to incorporate intensive reading and writing strategies in disciplinary courses, than to concentrate on first year writing courses.
文摘The logic of hegemonic domination that was established in Colombia and in Latin America after the Conquest is based on a scheme of elitist power. Using the perspective of the Italian sociologist Vilfredo Pareto, we can classify these elites in lions or foxes. In the first case, they use the force and the violence （the Macht of Weber） to impose their sovereignty; in the second case, they use persuasion and the masquerade （the Herrschaft）---the propaganda. This power is based on a more stable legitimacy and is able to transform itself in a matrix-effect reality. This form of social control has allowed the Colombian （and Latin American） 61ites the uncontrolled starvation of the natural resources found in these territories, under the influence of a wild capitalism which is strictly linked to the mass media community of the continent. This paper will expose the panorama of community media with an ethnic perspective in Colombia that hopefully works as process to facilitate the building of social links based on dialogue, reconciliation, respect, and participation, acting as watchdog of economic and political power, reporting the injustice and looking for peace solution in the region.
文摘This paper studies and analyzes the response of helical stairs as helicoidal shells in earthquake zones. The response of helical stairs under gravity loads was analyzed by both the membrane theory and finite element methods. The non-linear response of helical stairs, when subjected to UBC （Uniform Building Code） dynamic and static equivalent earthquake loads, were obtained using finite element models. These responses were compiled and analyzed in order to draw recommendations for the preliminary design of helical stairs in earthquake zones. The analysis of the results obtained showed that helical stairs are stiffer and lighter than regular ones.
文摘Price：US$40Hardcover,272 pages Published by Columbia University PressAround the year 2000 Internet literature boomed in China,outselling all conventionally published books in main city bookshops.Unlike the many U.K.and U.S.scholars that highlight censorship over the Internet in China,Professor Michel Hockx,author of Internet Literature in China,has expanded his research to an exploration of network literature content,and exactly what its
文摘2017年6月13日,中国外交部长王毅同巴拿马共和国副总统兼外长德圣马洛（Isabel Saint Malo）在北京举行会谈并签署了《中华人民共和国和巴拿马共和国关于建立外交关系的联合公报》。公报宣布,中华人民共和国和巴拿马共和国,根据两国人民的利益和愿望,兹决定自公报签署之日起相互承认并建立大使级外交关系。
文摘We are very pleased to have the opportunity to make a ded- ication in this issue to mark the 80th birthday of Dr. Ronald Breslow, S. L. Mitchill Professor of Chemistry and University Professor of Columbia University, USA, and to honor his many contributions to chemistry, education, and China-US scientific exchanges over the years. Three articles by Drs. LIU Lei of Tsinghua University ,
