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1.
单舜 《科技信息》2013,(16):77-77,79
随着素质教育的深入发展,学生体质与健康问题逐步被学校、社会、家庭广泛关注,对学生体质与健康的研究,也成为学校体育研究中的重要课题之一。本文采用文献资料法、问卷调查法、专家访谈法、数理统计法、观察法等方法,对体质测试实施的现状进行研究和分析,并提出今后实施体质测试时相应的建议。  相似文献   

2.
余防 《科技信息》2009,(28):179-180
本文运用文献法、调查法、数理统计等,分别从性别差异、城乡差异、家庭子女状况、测试的态度、课外体育活动次数以及对体育课喜欢程度等方面,分析探讨其与《学生体质健康标准》测试等级的关系,旨在推进《学生体质健康标准》的有效实施。  相似文献   

3.
采用文献资料法、实验法和数理统计法,对宁夏大学在校17 077名男女学生进行体质测试的6项指标进行统计、分析.结果发现:一、二年级学生的体质状况良好,四年级学生的体质状况令人担忧.在此基础上,分析了大学生体质健康的发展基本规律:在身体形态方面,随着年龄的增长,身高、体重呈上升趋势;在身体机能与素质方面,随着年龄的增长,呈下降趋势.并在保证学生充足的体育活动时间,学校和家庭应加大对学生健康的投入,加强对学生健身意识和知识的教育,重视毕业生的身体健康状况等方面提出了相应的对策.  相似文献   

4.
《平顶山学院学报》2019,(5):117-121
目前中国大学生的体质健康问题备受关注,在"互联网+体育"背景下,跑步app的出现为促进大学生身体锻炼,提高体质水平提供了便利条件.通过文献资料法、数理统计法和比较研究法,以平顶山学院利用运动app参加健康跑活动的4 057名学生为研究样本,通过对比他们参加校园健康跑后的体测结果,从身体形态、身体素质、身体机能和体测总得分4个方面进行研究分析,从而客观评价校园健康跑对学生体质促进效果,为提高大学生体质水平提供参考.  相似文献   

5.
大学生体质呈下降趋势受到了社会、学校和家庭的广泛关注。针对新时代背景下影响大学生体质的主客观因素进行研究,分别从社会、学校、家庭三方面的变化对大学生体质产生的影响进行分析。通过查阅相关资料和走访调查等方式得出:一是社会应加大对大学生体质健康的关注;二是学校应优化教学模式和结构,健全相应的校规校纪;三是家庭应提高体育教育的意识,注重孩子体质健康。特别是新时代背景下,高校的体育教学更要积极创新教学模式,提高体育教学质量和效果,推动大学生全面发展。  相似文献   

6.
运用文献资料法、专家访谈法、问卷调查法、实验法、数理统计法等研究方法,在我国大学生体质健康下降的背景下,针对大学生体质健康中的不良行为,以阳光体育运动作为干预手段,改善大学生的不良行为习惯,增进大学生的体质健康,为阳光体育运动形成长期有效的干预功能提出一些建议。  相似文献   

7.
采用测试法、文献资料法、数理统计法对绵阳师范学院非体育专业大学生体质健康测试数据进行整理统计分析,并对不同专业学生体质健康状况进行对比.结果表明:不同专业学生的身体形态、身体机能、身体素质有一定差异.建议:公共体育课教师应了解学生体质健康的特征,针对不同专业学生体质健康的弱势采取干预措施,加强课外体育活动的组织和指导,确保学生在有限的体育锻炼时间中提高其体质健康水平.  相似文献   

8.
2010年广西壮族农村学生体质下降原因调查与研究   总被引:1,自引:0,他引:1  
目的:2010年广西壮族7~18岁农村学生的体质状况和2005年相比都在普遍下降,期盼通过调研找到下降原因、提出改进措施从而实现全国学生体质健康水平均衡和谐发展。方法:运用测量法、问卷调查法和访谈法对参加2010年广西壮族学生体质与健康监测的4所学校里的部分学生和老师进行了调研。结果:1)本次复测情况总体上是和2010年的相应指标测试结果一致。2)学生问卷结果是:多数家庭经济状况差、膳食营养状况差、闲暇时间与身体锻炼的时间少、多数学生对营养与健康知识的了解不够;3)教师访谈结果显示学生体质下降原因较多,学校、家庭、社会和学生本人都应负有主要责任。  相似文献   

9.
采用测试法、问卷调查法、文献资料法、数理统计法,对咸宁学院学生的体质健康状况和体育锻炼现状进行了调查分析.对学生的身体形态、机能、素质和体育锻炼现状进行比较分析,以求对我校学生体质健康和体育锻炼现状存在的主要问题,提出针对性的分析与建议.建立以增强大学生体质为目标的体育与健康教育体系,为学校进一步贯彻"健康第一"教育思想提供可参考的依据.  相似文献   

10.
乐涛 《科技信息》2012,(11):350-351
论文旨在研究宜春市城区中学男生体质健康状况,及对存在的问题进行分析,为更好的发展中学学生体质健康提供科学的依据。方法:论文通过文献资料法、试验测试法等进行研究。结果发现我市城区中学男生体质健康状况堪忧,与国家体育总局发布的中学生体质健康标准存在较大的差距,其主要因素包括社会、家庭等的影响。结论:宜春市城区中学男生体质健康状况不是很理想,与国家中学生体质健康标准存在较大差距,建议在今后的教学生活中应当注意身体素质的锻炼和营养质量的提高。  相似文献   

11.
Language markedness is a common phenomenon in languages, and is reflected from hearing, vision and sense, i.e. the variation in the three aspects such as phonology, morphology and semantics. This paper focuses on the interpretation of markedness in language use following the three perspectives, i.e. pragmatic interpretation, psychological interpretation and cognitive interpretation, with an aim to define the function of markedness.  相似文献   

12.
The discovery of the prolific Ordovician Red River reservoirs in 1995 in southeastern Saskatchewan was the catalyst for extensive exploration activity which resulted in the discovery of more than 15 new Red River pools. The best yields of Red River production to date have been from dolomite reservoirs. Understanding the processes of dolomitization is, therefore, crucial for the prediction of the connectivity, spatial distribution and heterogeneity of dolomite reservoirs.The Red River reservoirs in the Midale area consist of 3~4 thin dolomitized zones, with a total thickness of about 20 m, which occur at the top of the Yeoman Formation. Two types of replacement dolomite were recognized in the Red River reservoir: dolomitized burrow infills and dolomitized host matrix. The spatial distribution of dolomite suggests that burrowing organisms played an important role in facilitating the fluid flow in the backfilled sediments. This resulted in penecontemporaneous dolomitization of burrow infills by normal seawater. The dolomite in the host matrix is interpreted as having occurred at shallow burial by evaporitic seawater during precipitation of Lake Almar anhydrite that immediately overlies the Yeoman Formation. However, the low δ18O values of dolomited burrow infills (-5.9‰~ -7.8‰, PDB) and matrix dolomites (-6.6‰~ -8.1‰, avg. -7.4‰ PDB) compared to the estimated values for the late Ordovician marine dolomite could be attributed to modification and alteration of dolomite at higher temperatures during deeper burial, which could also be responsible for its 87Sr/86Sr ratios (0.7084~0.7088) that are higher than suggested for the late Ordovician seawaters (0.7078~0.7080). The trace amounts of saddle dolomite cement in the Red River carbonates are probably related to "cannibalization" of earlier replacement dolomite during the chemical compaction.  相似文献   

13.
何延凌 《科技信息》2008,(4):258-258
Language is a means of verbal communication. People use language to communicate with each other. In the society, no two speakers are exactly alike in the way of speaking. Some differences are due to age, gender, statue and personality. Above all, gender is one of the obvious reasons. The writer of this paper tries to describe the features of women's language from these perspectives: pronunciation, intonation, diction, subjects, grammar and discourse. From the discussion of the features of women's language, more attention should be paid to language use in social context. What's more, the linguistic phenomena in a speaking community can be understood more thoroughly.  相似文献   

14.
AcomputergeneratorforrandomlylayeredstructuresYUJia shun1,2,HEZhen hua2(1.TheInstituteofGeologicalandNuclearSciences,NewZealand;2.StateKeyLaboratoryofOilandGasReservoirGeologyandExploitation,ChengduUniversityofTechnology,China)Abstract:Analgorithmisintrod…  相似文献   

15.
理论推导与室内实验相结合,建立了低渗透非均质砂岩油藏启动压力梯度确定方法。首先借助油藏流场与电场相似的原理,推导了非均质砂岩油藏启动压力梯度计算公式。其次基于稳定流实验方法,建立了非均质砂岩油藏启动压力梯度测试方法。结果表明:低渗透非均质砂岩油藏的启动压力梯度确定遵循两个等效原则。平面非均质油藏的启动压力梯度等于各级渗透率段的启动压力梯度关于长度的加权平均;纵向非均质油藏的启动压力梯度等于各渗透率层的启动压力梯度关于渗透率与渗流面积乘积的加权平均。研究成果可用于有效指导低渗透非均质砂岩油藏的合理井距确定,促进该类油藏的高效开发。  相似文献   

16.
As an American modern novelist who were famous in the literary world, Hemingway was not a person who always followed the trend but a sharp observer. At the same time, he was a tragedy maestro, he paid great attention on existence, fate and end-result. The dramatis personae's tragedy of his works was an extreme limit by all means tragedy on the meaning of fearless challenge that failed. The beauty of tragedy was not produced on the destruction of life, but now this kind of value was in the impact activity. They performed for the reader about the tragedy on challenging for the limit and the death.  相似文献   

17.
本文叙述了对海南岛及其毗邻大陆边缘白垩纪到第四纪地层岩石进行古地磁研究的全部工作过程。通过分析岩石中剩余磁矢量的磁偏角及磁倾角的变化,提出海南岛白垩纪以来经历的构造演化模式如下:早期伴随顺时针旋转而向南迁移,后期伴随逆时针转动并向北运移。联系该地区及邻区的地质、地球物理资料,对海南岛上述的构造地体运动提出以下认识:北部湾内早期有一拉张作用,主要是该作用使湾内地壳显著伸长减薄,形成北部湾盆地。从而导致了海南岛的早期构造运动,而海南岛后期的构造运动则主要是受南海海底扩张的影响。海南地体运动规律的阐明对于了解北部湾油气盆地的形成演化有重要的理论和实际意义。  相似文献   

18.
There are numerous geometric objects stored in the spatial databases. An importance function in a spatial database is that users can browse the geometric objects as a map efficiently. Thus the spatial database should display the geometric objects users concern about swiftly onto the display window. This process includes two operations:retrieve data from database and then draw them onto screen. Accordingly, to improve the efficiency, we should try to reduce time of both retrieving object and displaying them. The former can be achieved with the aid of spatial index such as R-tree, the latter require to simplify the objects. Simplification means that objects are shown with sufficient but not with unnecessary detail which depend on the scale of browse. So the major problem is how to retrieve data at different detail level efficiently. This paper introduces the implementation of a multi-scale index in the spatial database SISP (Spatial Information Shared Platform) which is generalized from R-tree. The difference between the generalization and the R-tree lies on two facets: One is that every node and geometric object in the generalization is assigned with a importance value which denote the importance of them, and every vertex in the objects are assigned with a importance value,too. The importance value can be use to decide which data should be retrieve from disk in a query. The other difference is that geometric objects in the generalization are divided into one or more sub-blocks, and vertexes are total ordered by their importance value. With the help of the generalized R-tree, one can easily retrieve data at different detail levels.Some experiments are performed on real-life data to evaluate the performance of solutions that separately use normal spatial index and multi-scale spatial index. The results show that the solution using multi-scale index in SISP is satisfying.  相似文献   

19.
20.
The elongation method,originally proposed by Imamura was further developed for many years in our group.As a method towards O(N)with high efficiency and high accuracy for any dimensional systems.This treatment designed for one-dimensional(ID)polymers is now available for three-dimensional(3D)systems,but geometry optimization is now possible only for 1D-systems.As an approach toward post-Hartree-Fock,it was also extended to  相似文献   

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