宿迁市中小学学校体育中体力活动要素的现状调查与对策研究

运用文献资料、问卷调查、测量及数理统计等研究方法,对宿迁市中小学学生体力活动要素——早操情况、体育与健康课和课外体育活动发放问卷进行调查,并且对这些体力活动要素的现状进行统计与分析,结果显示：宿迁市中小学学校体育中体力活动因素开展的并不均衡,尤其体育与健康课和课外体育活动开展的相对滞后,建议相关部门加强对学校体育中体力活动因素的重视,加大对学校场地器材的投入及增强体育教师的素质,以此增加学生体力活动量,增强学生的体质。     

Comparison of the Physiological Profiles of Middle-Aged Women Distance Runners and Sedentary Women

Abstract

Extensive in-depth interviews were conducted with all 20 members of the 1988 U.S. Olympic Wrestling Team regarding their efforts to cope with stress experienced during the Seoul Olympics. Qualitative analyses revealed that the wrestlers employed a variety of coping strategies including (a) thought control strategies (blocking distractions, perspective taking, positive thinking, coping thoughts, and prayer), (b) task focus strategies (narrow, more immediate focus, concentrating on goals), (c) behavioral based strategjies (changing or controlling the environment, following a set routine), and (d) emotional control strategies (arousal control, visualization). In accordance with the observations of Compos (1987) and Folkman and Lazarus (1985), the coping efforts of the Olympic wrestlers were not limited to particular strategies nor to single approaches to dealing with a particular stressor but, rather, reflected a dynamic complex process involving a number of strategies, often in combination. The results also suggested that the degree to which coping strategies are well learned or automatized is related to their perceived effectiveness.     

Cardiovascular Fitness and Maximal Heart Rate Differences among Three Ethnic Groups

Abstract

The current study examines maximal heart rate and maximal treadmill time differences among three ethnic groups. In 1985, 1,047 city employees (572 male, 475 female) participated in a comprehensive health promotion program. Data were collected from a self-administered health and lifestyle questionnaire, maximal treadmill exercise stress test, and other clinical measures. The participants were divided into white male (n = 368), black male (n = 159), Mexican-American male (n = 45), white female (n = 256), black female (n = 189), and Mexican-American female (n = 30) subgroups based on self-reported ethnic identity. Univariate analyses revealed no significant differences in age-adjusted maximal heart rate or maximal treadmill time for males. Mean age-adjusted treadmill time for black females (478.0 ± 228.2 s) was significantly lower than for white (652.5 ± 227.7 s) and Mexican-American (594.5 ± 226.7 s) females (p <. 05). Mean age-adjusted maximal heart rate for black females (174.4 ± 12.4 beats/min) was significantly lower than for white (179.3 ± 13.4 beats/min) and Mexican-American (182.0 ± 13.5 beats/min) females (p < .05). Following adjustment for cardiovascular fitness level, that is, treadmill time, as well as age, these differences were no longer apparent. We concluded that the comparatively low maximal heart rate of black females may be partially explained by a significantly lower cardiovascular fitness level relative to white and Mexican-American females.     

一流高校产学研共生体建设的理念与探索

产、学、研在互动共生中彰显多元潜能,高校创建产学研共生体是育人、科研、产业事业持续、健康、快速发展的战略性选择。西工大长三角研究院的实践探索表明,一流高校产学研共生体的核心构架是：以高新技术研发为依托,以高附加值技术产品开发为根基,以高成长性文化培育为焦点,带动高校产、学、研等事业的共生共强。产学研共生体运行是产学共生、学研共生、产研共生等三者的交叠过程,其理论模型是：在“协同创新”理念指引下,推进产业链、创新链与人才培养链间的交融一体化发展。一流高校产学研共生体建设的实践路径是：从众创空间建设、研发平台建设、团队梯队建设等三个角度入手,推进产学研共生体的内部共生与高水平运转。     

红花苗菜内矿质元素含量的测定

红花是一个集医疗与保健为一身的草本菊科植物,但是目前对红花的开发仅局限于花冠,对红花苗菜的开发利用甚少,本实验是用电感耦合等离子发射光谱法（ICP-AES）研究红花种籽播种45天后红花苗菜内K, Ca , Mg , Fe , Cr , Cd , Se , Pb , Cu ,Zn十种矿质元素的含量。结果表明：人体必须的常量元素Ca,K, Mg含量分别是15.53 mg/g,55.16 mg/g,4.612mg/g,人体必需的微量元素的Fe,Cr,Se,Cu和Zn的含量分别是0.268mg/g,0.003388mg/g,0.6397mg/g,0.09514mg/g,0.071mg/g,此外,还含有Cd0.007mg/g,Pb0.1877mg/g。     

电感耦合等离子体发射光谱法测定儿童发样中十二种微量元素

采用硝酸一过氧化氢消解试样,电感耦合等离子体发射光谱法测定儿童发样中铝、钙、铬、铜、铁、钾、镁、锰、钠、铅、镍、锌等十二种微量元素。方法回收率95％-105％,各元素检出限（ug／mL）在0．0010-0．011之间,相对标准偏差（RSD,n=9）小于4％,经人发国家一级标准物质验证,测定值与标准认定值无明显差异。     

大学生英语课堂沉默研究

大学生英语课堂沉默一直是普遍现象,也是教学中教师碰到的棘手问题之一.教学是“教”与“学”的双边活动,对于外语学习而言,口语交流尤其重要.文中阐述了课堂沉默的定义及分类,并分析了大学生英语课堂沉默的形成因素,为解决大学生英语课堂沉默问题提供有益的启示.     

兰州市大气质量与气象要素间的动态模拟分析

利用投入产出模型,建立了污染源和排放量、风速、大气温度、季节变量与污染指数之间的数学模型,详细介绍了解决问题的思路和建模方法,并利用所建立的数学模型,分析了兰州市大气污染指数的动态变化.从模拟结果看,精度较高,比较准确地反映了各因素之间的动态变化趋势.     

几种香茶菜属植物元素谱的灰色关联分析

目的：了解几种大理产香茶菜属植物微量元素谱的亲疏关系。方法：用火焰原子吸收分光光度法测定6种香茶菜属植物样品中的11种元素,以其含量为分析指标,用灰色关联方法研究这些样品微量元素谱的亲疏关系。结果：不育红根茎、腺花香茶菜根茎、弯锥香茶菜根茎的微量元素谱有较大的关联程度。结论：本研究为判断香茶菜属植物地下部分的生理机制、药用价值提供了一个新的思路,具有一定的参考意义。     

基于城市历史景观角度的襄阳市古襄阳城保护研究

摘要：城市历史景观遵循城市在时空上的演进规律,认为城市是文化和自然价值在历史上的层积,是种兼具文化传承和经济适应性的可持续城市保护方法。探讨城市历史文化景观在古城保护内涵的基础上,结合襄阳古城保护研究,从城市肌理形态与空间格局保护与延续、历史文化景观要素系统构建和动态发展研究三方面探讨了古襄阳城的保护方法,旨在探寻一条在高速城市化建设背景下城市规划历史文化遗产可持续发展的生存途径。