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高原训练对我国优秀竞走运动员血5项的影响 总被引:7,自引:0,他引:7
通过对参加第27届奥运会的国家竞走集训队中5名优秀运动员的血液5项指标的测试,对比研究竞走运动员在高原地区和平原地区训练期间前、后的血液变化情况,探讨高原训练对红细胞、血红蛋白、红细胞压积、红细胞平均容积和白细胞的影响. 相似文献
13.
为了提高我国游泳接力项目的水平,采用自动计时装置接力出发判断器对2001年全国游泳冠军赛接力项目全部参赛队的预、决赛接跳时间进行研究,发现大多数运动员和接力队的接跳时间处于较差水平,分析了接跳技术上存在的问题。研究证实当水下运动员在最后一次移臂动作臂出水时,接跳运动员开始做出发动作,接跳时间个人为0.10s,全队为0.30s是合理的评价标准。 相似文献
14.
400m栏比赛的全程是由各个不同技术特征的若干段落所组成,通常把400m栏划分为五个阶段出发段、前程跨栏跑段、中程跨栏跑段、后程跨栏跑段和终点冲刺段.400m栏是人体极限运动项目之一,400m栏的关键是每一个栏周期的平均速度的平稳性,全程的速度分配、各栏间速度的发挥和利用程度,而保持速度的关键是栏间跑节奏的掌握.栏间步数、步长和节奏在400m栏中显得非常重要. 相似文献
15.
ABSTRACT Amid rising controversy around the alleged distinctions between merit and excellence lies a familiar refrain, scarcity. The narrative of academic scarcity, proclaiming the insufficient numbers of scholars and academics of color, permeates conversations in higher education. We suggest that the academic scarcity narrative, a remnant of stagnant logics of diversity, circulates as a contemporary mechanism of what we name disciplinary containment. Extending disciplinary conversations around rhetorical containment, we argue that disciplinary containment perpetuates whiteness. 相似文献
16.
Baudelaire Ulysse Theodorea Regina Berry 《International journal of qualitative studies in education》2016,29(8):989-1001
AbstractIn our conceptual essay, we draw on an exchange between a White scholar and a group of panelists on Critical Race Theory at an international conference. Taking up this exchange as our point of departure, we work in dialectical and multidimensional ways between the essentialized politics of place on race and critical anti-essentializing foundations in recent Critical Race Feminism and Critical White Studies’ literatures. Working the dialectics and multidimensionality of the place that race makes in academic discourse, we recognize and ethically work through the essentialized politics of place in advancing anti-essentializing understandings of race. In articulating these anti-essentializing understandings, our conceptual essay drives at the notion of a generative politics of place on race in academic discourse. A generative politics of place holds essentialized realities and anti-essentializing foundations of race in dialectical and multidimensional tension for teaching, learning, and discussing race in local, national, and international contexts. 相似文献
17.
#OscarsSoWhite: how Stuart Hall explains why nothing changes in Hollywood and everything is changing
Isabel Molina-Guzmán 《Critical Studies in Media Communication》2016,33(5):438-454
ABSTRACTStuart Hall’s work on culture, representation, ideology and hegemony positions Hollywood as a cultural institution informed by and informative of US social values and norms. Thus contemporary debates over Hollywood's diversity are indicative of broader social conflicts. Empirically the article examines 2014–2015 news coverage of Hollywood to question the Hollywood paradox—the lack of diversity in film/TV production yet TV’s increasing shift towards on-screen diversity. It maps three discursive frames: Hollywood exceptionalism, economic imperatives, and institutionalized racism and sexism. The article concludes by using Hulu’s East Los High to reflect on TV’s digital turn and innovative models in production and representation. 相似文献
18.
Phillip Hutchison 《Critical Studies in Media Communication》2016,33(2):154-167
This essay interrogates journalistic accounts of Texas Western College’s 1966 college basketball championship, a game in which an all-Black team defeated an all-White team. The analysis traces the evolving portrayals of the game over 45 years. In 1966 American journalists did not emphasize the racial aspects of the game and it was largely forgotten. Twenty-five years later, however, journalists reconstructed the game as a racialized legend, and this account evolved into an epic American narrative. The author argues that the epic portrayals, although aesthetically appealing, reflect problems with accuracy, appropriation, and commercial exploitation. The latter factor led to the legend’s motion picture adaptation as part of a troublesome “White Savior” cinema genre. 相似文献
19.
张文 《内江师范学院学报》2005,20(4):30-32
分析组合电路中的竞争冒险现象的概念、判断方法、克服与仿真;现代电子设计中的毛刺现象及其危害。通过实例指出其消除方法。 相似文献
20.
Yukari Takimoto Amos 《International journal of qualitative studies in education》2016,29(8):1002-1015
AbstractThis qualitative study investigated the negative impacts minority teacher candidates receive from white teacher candidates in a required multicultural education class. The findings reveal that four teacher candidates of color had difficulty positioning themselves among the overwhelming silencing power of whiteness in the class. The white students were tactful at evading power and race and flattening the existing hierarchical power relations through the discourses of colorblindness and by preying on the minority instructor. Their understanding of diversity was also shallow. On the other hand, the teacher candidates of color were afraid that they might be labeled as the ones who spoke up against the white students and fearful of the possibility of retaliation and ostracism from the white peers. It seems that the teacher education program’s structure allowed the white candidates to impose strong negative peer pressure on the teacher candidates of color. 相似文献