“新时期”CUBA与CBA联赛竞技篮球人才衔接与培育研究

为进一步实现CUBA与CBA联赛新时期改革计划,疏通我国篮球后备人才战略培养路径,以“新时期”CUBA与CBA的人才衔接与培育为研究对象,运用文献资料、录像观察、数理统计等方法,对CBA联赛选秀球员进行综合分析。研究结果表明:1)存在问题包括组织机构衔接不畅、选秀球员竞技水平不精、人才培养观契合度不高及俱乐部注意程度不足4个方面。2)改善路径包括逐渐推进多元主体衔接度及流畅性、全面优化高校球员竞技能力及水平、消除人才培养僵化及保守化、扎实提升俱乐部关注程度及积极性。     

Responses to oral glucose challenge differ by physical activity volume and intensity: A pilot study

BackgroundOne-hour postprandial hyperglycemia is associated with increased risk of type 2 diabetes and cardiovascular disease. Physical activity (PA) has short-term beneficial effects on post-meal glucose response. This study compared the oral glucose tolerance test results of 3 groups of people with habitually different levels of PA.MethodsThirty-one adults without diabetes (age 25.9 ± 6.6 years; body mass index 23.8 ± 3.8 kg/m²; mean ± SD) were recruited and divided into 3 groups based on self-reported PA volume and intensity: low activity < 30 min/day of moderate-intensity activity (n = 11), moderately active ≥ 30 min/day of moderate-intensity PA (n = 10), and very active ≥ 60 min/day of PA at high intensity (n = 10). Participants completed an oral glucose tolerance test (50 g glucose) with capillary blood samples obtained at baseline, 15 min, 30 min, 45 min, 60 min, 90 min, and 120 min post-ingestion.ResultsThere were no significant differences between groups for age or body fat percentage or glycated hemoglobin (p > 0.05). The groups were significantly different in terms of baseline glucose level (p = 0.003) and, marginally, for gender (p = 0.053) and BMI (p = 0.050). There was a statistically significant effect of PA on the 1-h postprandial glucose results (p = 0.029), with differences between very active and low activity groups (p = 0.008) but not between the moderately active and low activity groups (p = 0.360), even when baseline glucose level and gender differences were accounted for. For incremental area under the curve there was no significant effect of activity group once gender and body fat percentage had been accounted for (p = 0.401). Those in the low activity group took 15 min longer to reach peak glucose level than those in the very active group (p = 0.012).ConclusionThe results suggest that high levels of PA have a beneficial effect on postprandial blood glucose profiles when compared to low and moderate levels of activity.     

魏晋时期的本体论思潮

如果说西方哲学基本是在为柏拉图做注释的话,中国哲学则主要是以先秦的儒家和道家理论为基调发展下去的。儒者身份的特殊性决定了儒家理论必然要为统治者服务,从唐朝的韩愈一直到清代的颜元都在为封建统治秩序做解释。魏晋时期天下大乱,并没有实质上的最高统治者,这个特殊时期的时代背景决定了其哲学的主体和特色并指出了魏晋玄学对后世思想的影响。     

Reciprocal Versus Nonreciprocal Assessment of Knee Flexors and Extensors in Concentric Actions Using the CON-TREX Multijoint Isokinetic Dynamometer: A Reliability Study

Knee flexor and extensor muscular assessment via isokinetic dynamometry is common practice and established in the research literature. However, reporting assessment methodology regarding reciprocal and nonreciprocal movements is often vague or absent. Such methodological issues are crucial for accurate assessments. Therefore, knee extensor and flexor peak moment using either reciprocal movement or nonreciprocal modalities was assessed. Fifteen participants performed three blocks of five concentric muscle actions at three angular velocities [1: nonreciprocal (maximal active flexion followed by passive extension); B2: reciprocal (maximal active extension followed by maximal active flexion); B3 nonreciprocal (maximal active extension followed by passive flexion)]. ANOVA revealed statistically significant within-subject modality effects for peak knee extensor moment and flexor velocity and modality differences (p < .05). Reciprocal and nonreciprocal assessments give significantly different results, with nonreciprocal giving higher peak moments. Reporting which modality is used is crucial to allow for greater clarity for the reader and practitioner.     

1953年粮食危机与统购统销政策的出台

统购统销政策的出台,与1953年粮食危机的出现、过渡时期总路线的贯彻有密切的关联。此前,中国粮食供需的总体形势虽有所缓和,但并没有根本好转。为解决大规模工业化建设对粮食的需求以及稳定物价的需要,中央政府不得不谋求新的控制粮食资源的办法。粮食危机的出现,为统购统销政策的出台提供了一个重要时机。另外,在酝酿采取统购统销政策时,中央政府一开始就把它纳入到过渡时期总路线中去,以便对城乡传统生产关系进行改造。     

加强转型期地方师范大学学科建设的有效措施

目前，地方师范大学已有的学科结构较单一、学科间交叉融合程度较低、新的学科队伍力量不强等缺陷不利于培养综合素质高的优秀教师。安徽师范大学的办学实践证明，转型期地方师范大学只有坚持不懈地抓学科建设，才能实现学科建设上水平，学校办学上层次的发展目标。本文从科学制定规划、建设特色学科、优化学科结构、加强科学研究和提高师资队伍等方面阐述了地方师范大学转型期学科建设的主要措施。     

海冰厚度随时间变化特征的实验研究

认识海冰厚度在气温等因子影响下随时间变化的特征,是估算海冰资源量的基础。该文通过室内冻结实验、现场观测实验和历史资料分析,探讨了在气温和风的影响下海冰厚度随时间变化的特征,并在此基础上给出了海冰的再生周期。室内实验利用500L温控冰柜,实验温度设为－2℃、－4℃、－6℃、－8℃、－10℃,冻结时间114h—120h,冰厚取样间隔6h。现场观测地点为辽宁省瓦房店市长兴岛北侧海区的潮间带平整冰面,在观测冰厚变化的同时,测定实验地点的冰面温度、冰上气温和邻近岸上的地面温度、地上气温。历史资料分析使用1989年12月25日～1990年2月23日葫芦岛海洋站观测到的气温、风速和冰厚的资料,以及同时期葫芦岛气象站≤－2℃积温、≤－4℃积温资料做对比分析。本文得出的结论如下：随着气温降低或负积温值的增加,冰厚逐渐增加;风速增加,冰厚降低,风速减小,冰厚增加;在气温≦－4℃条件下,渤海海冰再生速率为1.86cm/d,生成厚度为10cm的海冰所需时间为5.4d;常冰年渤海各海区工程性开采海冰的可能次数为：辽东湾7.4次～13次,渤海湾3.7次～7.4次,莱州湾1.9次～3.7次。     

独玉矿床成矿期及成矿模式研究

从独玉大地构造背景分析入手，依据其形成条件，着重探讨了独玉矿床的成矿期各阶段特征，试图建立新的独玉矿床的成矿机理和过程——成矿模式，并在此基础上提出了独玉的找矿方向和找矿标志。     

基于政策文本视角的广东“十二五”科技政策研究

基于"政策年度""政策类型""颁布主体"和"文种类型"四位一体科技政策分析框架,对广东"十二五"期间颁布的80项科技政策样本进行统计分析,系统阐述广东"十二五"期间科技创新政策的类型分布、主要特点和存在问题,并提出若干对策建议。     

全球顶级科学家实验室的建设与展望——对吉林大学未来科学国际合作联合实验室的启示

建设全球顶级科学家实验室是一些发达国家吸纳高端科技人才的成功作法，也是我国在新形势下实现科技目标赶超的积极探索。基于已有成果并结合调研，对我国建设全球顶级科学家实验室研究形成较为全面的思考与展望。首先，介绍顶级科学家实验室建设的背景，并对顶级科学家的内涵进行界定；顶级科学家实验室在国际上有不同的发展模式，分析欧美等国的成功经验并进行比较；然后，以吉林大学实验室建设为典型案例，系统分析其建设概况、引智窗口期、组织架构、运行机制以及建设发展中遇到的问题；最后进行讨论，并对未来研究领域进行展望。