Circulating thrombotic and haemostatic components in patients with coronary artery disease     

Kavita K. Shalia  V. K. Shah  M. R. Mashru  S. L. Soneji  J. B. Vasvani  S. S. Payannavar  A. P. Walvalkar  R. A. Mokal  S. M. Mithbawkar  K. V. Kudalkar  A. Abraham  P. K. Thakur 《Indian journal of clinical biochemistry : IJCB》2010,25(1):20-28

The study aimed to analyze the circulating levels of thrombotic and haemostatic components; tissue factor, tissue factor pathway inhibitor, tissue plasminogen activator and plasminogen activator inhibitor-1 in patients with acute myocardial infarction at presentation (Group 1, n=49), unstable angina and Non-ST elevated MI after treatment (Group 2, n=22), stable angina (Group 3, n=18) and healthy individuals (Group 4, n=31). Significant finding was increase in tissue factor not only in Group 1 (2.0 fold, P=0.001), Group 2 (2.2 fold, P=0.015) but also in Group 3 (1.8 fold, P=0.018) as compared to controls. In Group 1 Plasminogen activator inhibitor-1 increased significantly (35.8%, P=0.02). Tissue factor pathway inhibitor and tissue plasminogen activator demonstrated increase in Group 1 of age<40 years while insignificant changes in elder patients. Increased thrombotic and decreased fibrinolytic conditions in acute myocardial infarction patients were observed. Increase TF in stable angina demonstrates procoagulant status in these patients as well.  相似文献   

Student Unrest and Relevant Education     

James Arthur Phillips 《College Teaching》2013,61(3):250-251

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Motion analysis of match-play in elite U12 to U16 age-group soccer players     

Harley JA  Barnes CA  Portas M  Lovell R  Barrett S  Paul D  Weston M 《Journal of sports sciences》2010,28(13):1391-1397

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Making knowledge: history, literature, and the poetics of science     

Bono JJ 《Isis; an international review devoted to the history of science and its cultural influences》2010,101(3):555-559

As a field of study, literature and science has gradually expanded to encompass both the impact of science on literary culture and the literary-linguistic practices intrinsic to the production of scientific knowledge. Such transformations both reinforce and fundamentally recalibrate the detailed attention focused on scientific practice by historians of science since the 1980s. As a result, this essay and the Focus section it introduces suggest that history of science and literature and science are, in fact, interdependent fields. Attention to their convergences will yield better understanding of the performative dimensions of scientific practices and thence of science itself as a form of making of knowledge of things and events in the world of nature. Science as a form of making involves the convergence of things, material practices, and a panoply of meaningful artifacts-instruments of thought and action-that refuse any simple dichotomy between "text" and "action."  相似文献   

Multimedia search capabilities of Chinese language search engines     

Yun-Ke Chang  Miguel A. Morales-Arroyo  Amanda Spink 《Information processing & management》2010

This paper reports results from a study exploring the multimedia search functionality of Chinese language search engines. Web searching in Chinese (Mandarin) is a growing research area and a technical challenge for popular commercial Web search engines. Few studies have been conducted on Chinese language search engines. We investigate two research questions: which Chinese language search engines provide multimedia searching, and what multimedia search functionalities are available in Chinese language Web search engines. Specifically, we examine each Web search engine’s (1) features permitting Chinese language multimedia searches, (2) extent of search personalization and user control of multimedia search variables, and (3) the relationships between Web search engines and their features in the Chinese context. Key findings show that Chinese language Web search engines offer limited multimedia search functionality, and general search engines provide a wider range of features than specialized multimedia search engines. Study results have implications for Chinese Web users, Website designers and Web search engine developers.  相似文献   

Blurring Public and Private: The Pragmatic Desegregation Politics of an Elite Private School in Atlanta     

Michelle A. Purdy 《History of education quarterly》2016,56(1):61-89

The school desegregation narrative often references historically white public schools as sites of massive resistance and historically white private schools as segregationist academies. Yet some historically white elite private schools or independent schools, such as The Westminster Schools (plural in name only), established in 1951 in Atlanta, Georgia, chose to desegregate. Such elite institutions, which have served as one catalyst for the creation and maintenance of social and cultural capital, became more accessible after Brown v. Board of Education through a combination of private and public decisions galvanized by larger social, political, and federal forces. Westminster's 1965 decision to consider all applicants regardless of race was emblematic of the pragmatic desegregation politics of Atlanta's city leaders during the civil rights movement and a national independent school agenda focused on recruiting black students. Drawing on institutional, local, regional, and national archival records and publications, this article examines the import of schools like Westminster to civic and business leaders, to the politics of race and desegregation occurring in large cities, and to the range of educational opportunities available in metropolitan areas. This examination yields an analysis of the leadership and politics of a southern historically white elite private school that black students desegregated in 1967.  相似文献   

Interdependencia lingüística y desarrollo educativo de los niños bilingües     

James Cummins 《Infancia y Aprendizaje》2013,36(21):37-68

Resumen

La tesis central del presente artículo es que se puede adquirir una forma de bilingüismo beneficiosa, cognitiva y académicamente hablando, solamente a partir de un desarrollo adecuado de la habilidad en la primera lengua (L1). Se formulan y combinan dos hipótesis hasta llegar a esta conclusión. La hipótesis del «Desarrollo interdependiente» propone que el desarrollo de la competencia en una segunda lengua (L2) depende, en parte, del tipo de competencia desarrollada ya en la L1 en el momento en que empieza una exposición intensiva a la L2. La hipótesis del «Umbral» propone que existen niveles umbrales de competencia lingüística que el niño deberá alcanzar en ambas lenguas, lo cual evitará desventajas cognitivas y permitirá que los aspectos potencialmente beneficiosos del bilingüismo influyan en su funcionamiento cognitivo y académico. Estas hipótesis se insertan en un modelo de educación bilingüe en el que los resultados educativos se explican en función de la interacción entre medio ambiente, input del niño y factores del método educativo. Se sugiere que en muchas evaluaciones de programas de educación bilingüe no se han podido interpretar los datos porque en el diseño de investigación no se han incorporado estas posibles interacciones.  相似文献   

Aerobic dance and physical self-perceptions in female adolescents: some implications for physical education.     

A J Daley  J Buchanan 《Research quarterly for exercise and sport》1999,70(2):196-200

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The performance environment of the England youth soccer teams     

Pain MA  Harwood C 《Journal of sports sciences》2007,25(12):1307-1324

In the present study, we examined the performance environment of the England youth soccer teams. Using a semi-structured protocol with a prospective sample, national coaches (n = 6), sport scientists (n = 3), and players (n = 4) were interviewed directly following international tournaments about the factors that positively and negatively influenced performance. Qualitative content analysis revealed the following factors as major positive influences on performance: adhering to a consistent tournament strategy, player understanding, strong team cohesion, organized entertainment activities, detailed knowledge of opposition, an effective physical rest/recovery strategy, and previous tournament experience. Major factors perceived to have negatively influenced performance included: over-coaching, player boredom, player anxiety, physical superiority of the opposition, physical fatigue over the tournament, problems sleeping, and lack of information on the opposition. Eight overall dimensions emerged to describe the performance environment: planning and organization, physical environment, tactical factors, development and performance philosophy, psychological factors, physical factors, social factors, and coaching. The findings support recent work that suggests the performance environment is multifaceted, with performance being contingent upon a broad range of interacting factors that go beyond the traditional psychosocial and physical domains.  相似文献   

Anthropometric dimensions of male powerlifters of varying body mass   总被引：1，自引：1，他引：0  

Keogh JW  Hume PA  Pearson SN  Mellow P 《Journal of sports sciences》2007,25(12):1365-1376

In this study, we examined the anthropometric dimensions of powerlifters across various body mass (competitive bodyweight) categories. Fifty-four male Oceania competitive powerlifters (9 lightweight, 30 middleweight, and 15 heavyweight) were recruited from one international and two national powerlifting competitions held in New Zealand. Powerlifters were assessed for 37 anthropometric dimensions by ISAK (International Society for the Advancement of Kinanthropometry) level II and III accredited anthropometrists. The powerlifters were highly mesomorphic and had large girths and bony breadths, both in absolute units and when expressed as Z(p)-scores compared through the Phantom (Ross & Wilson, 1974). These anthropometric characteristics were more pronounced in heavyweights, who were significantly heavier, had greater muscle and fat mass, were more endo-mesomorphic, and had larger girths and bony breadths than the lighter lifters. Although middleweight and heavyweight lifters typically had longer segment lengths than the lightweights, all three groups had similar Zp-scores for the segment lengths, indicating similar segment length proportions. While population comparisons would be required to identify any connection between specific anthropometric dimensions that confer a competitive advantage to the expression of maximal strength, anthropometric profiling may prove useful for talent identification and for the assessment of training progression in powerlifting.  相似文献