体质指数对大学生体质健康指标的影响

运用文献资料查询、频数分析和相关性检验等方法对大庆师范学院部分大学生的体质指数(BMI)和大学生体质健康标准测试成绩进行分析研究。结果发现:77%的学生的BMI分布于正常范围,但仍存在一定数量的超重或肥胖的学生,以及低体重学生。男生BMI较女生高,同时男生超重组及肥胖组所占百分数明显高于女生。BMI值与肺活量/体重指数呈非常显著性负相关,与立定跳远呈显著性负相关。超重或肥胖对大学生的肺功能及下肢的相对爆发力产生较大的负面影响;在男子测试项目中,BMI与握力/体重指数、50m呈正相关。     

BMI指数与大学生体质测试指标相关分析——以曲阜师范大学和山东师范大学为例

运用文献资料法、数理统计法和测试调查等方法对曲阜师范大学和山东师范大学2013级大学生8000人在2014年的BMI指数与大学生体质健康测试各项指标的相关性进行对比分析.结果显示:1)曲阜师范大学和山东师范大学大学生体质指数分布曲线均呈"细峰右尾"型,BMI指数基本分布在正常组内;2)BMI指数与肺活量均呈非常显著性正相关,与肺活量体重指数均呈非常显著性负相关;3)BMI指数与男生(1000m)、女生(800m)均呈非常显著性正相关;4)BMI指数与男生50 m均呈非常显著性正相关,与女生50 m不呈相关性;5)BMI指数与男、女生立定跳远之间均不呈相关性;6)BMI指数与男生引体向上、女生仰卧起坐之间均呈非常显著性负相关.     

新疆锡伯族7～18岁学生生长发育研究

文章通过了解新疆锡伯族7～18岁学生的身体发育状况。对新疆伊犁州察布查尔锡伯族自治县2200名学生进行体质测试,分别计算身体形态指标身高、体重和胸围以及生长发育指数伯格林指数、维尔维克指数、克托莱指数、身高体质量指数和BMI指数作为学生的评价指标,并作城乡比较。结果表明身体形态各指标随着年龄的增长而增长,胸廓的发育速度少年时期小于身高的生长速度,而青春期尤其是青春期后期胸廓的发育速度大于身高的发育速度;体重的增加速度同胸廓呈现相同的结果。男生在各方面均高于女生,且呈现出青春期特点;城市学生优于乡村学生。     

宁夏高校回汉学生体质现状对比分析

采用文献资料法、比较分析法和数理统计法,对宁夏大学、宁夏医科大学和北方民族大学回汉学生体质现状进行了调查分析．结果表明,回汉学生的体质健康状况基本达到了及格以上的水平,但是汉族男生与回族男生相比较除身高没有差异外,体重、肺活量、肺活量指数、台阶指数、握力体重指数、BMI体质指数、立定跳远均有显著性差异．汉族女生与回族女生相比较除身高、台阶指数、立定跳远、肺活量与回族女生差异不显著外,其他各项指标均呈显著性差异．     

学生体质健康现状分析与发展建议 ——以沈阳农业大学2018级学生为例

以《国家学生体质健康标准》为依据,采用文献资料法、测量法、比较研究法、逻辑分析法和数理统计法,围绕身体形态、肺活量、身体素质三个指标研究沈阳农业大学2018级学生体质健康现状.结果显示,学生体质健康总体较差,女生身高标准体重正常,男生身高标准体重超重且接近肥胖标准;男女生肺活量均值都处于正常值的下限,男生每公斤体重肺活量只有40分,女生每公斤体重肺活量60分;男女生都各有两项身体素质与运动能力成绩没有达到及格标准.从社会、学校、学生自身三个方面分析学生体质健康较差的原因,并给出针对性的建议,为制定促进学生体质健康发展的对策提供科学依据.     

高校大学生BMI分布特征比较分析

以上海政法学院为例,分析2005年和2014年大学生的BMI指数变化,为改善学生体质状况,促进高校体育教学改革提供科学依据.根据2005年和2014年体质调研数据,通过体质指数(Body Mass Index,BMI)筛查标准计算男、女学生超重和肥胖及过轻体重的检出率,对不同年级、不同运动项目超重和肥胖及过轻体重的检出率进行比较分析.分析结果表明,2005-2014年这十年间,大学生肥胖和超重呈下降趋势,标准体重的检出率大幅提高,过轻体重呈下降趋势;超重和肥胖学生在校运动兴趣集中,男生超重和肥胖幅度高于女生,女生过轻体重比例偏大.样本过轻体重的检出率依然偏高,必须引起体育卫生部门的重视.     

在校大学生《国家学生体质健康标准》测试结果动态变化趋势研究——以惠州学院为例

通过对惠州学院2007～2009年度《国家学生体质健康标准》数据库共计6 000名大学生的各项测试结果18 000人次的统计分析,结果表明：①三个年度总体平均成绩08年度与07、09年度相比呈非常显著提高,（P﹤0.01）;②三个年度学生低体重比例较高,营养不良比例有上升趋势,身体体重平均分数逐年下降;③学生肺呼吸功能低于《国家学生体质健康标准》评价体系中整体健康水平,心血管耐力水平高于《国家学生体质健康标准》评价体系中整体健康水平;④07、08、09年度下肢爆发力水平呈逐年下降趋势;⑤男女生总体体质状况相比,男生优于女生.结合惠州学院实际情况提出相关的对策.     

上海市大学生BMI特征与变化趋势

对上海市3259位男女大学生的BMI进行了研究，结果表明：上海市男女大学生BMI总体处于良好状态，男生的BMI明显高于女生，女生低体重比例远远高于男生，女生超重和肥胖比例均大大低于男生．与10年前相比，上海市男大学生BMI近年来总体呈上升趋势；而女生BMI则呈下降趋势．因此提出大学生必须建立良好的身体审美意识和健康的生活方式，并积极构建大学生体质健康的预警机制．     

维吾尔族大学生体质现状研究

目的:了解维吾尔族大学生体质现况.方法:用分层整群随机抽样法随机抽取西北民族大学20~23岁维吾尔族大学生共计905人为研究对象,分析其身体形态指标、机能指标、素质指标数据,并利用BMI标准筛查营养状态.结果:维吾尔族大学生身体形态指标在正常范围内,肺活量、肺活量体重指数指标、坐位体前屈指标均值以及50米成绩均达到了《学生体质健康标准》中的及格等级,台阶指数达到了《学生体质健康标准》中的良好等级;男生各年龄组身高值、体重值、肺活量、肺活量体重指数值、台阶指数平均值、50米跑成绩均优于同年龄组女生;维吾尔族大学生均表现为体重正常者所占比例约为74%.结论:维吾尔族大学生体质现状水平达标,但未达到最佳.     

大学生身体质量指数与肺活量相关性研究

运用数理统计法对文华学院2009-2012级学生的身体质量指数(BMI)和肺活量状况进行分析.结果显示:文华学院学生BMI呈"细峰肥尾"型,BMI分布基本正常,正常体重占总人数的70.2%,男生BMI高于女生;BMI与肺活量呈正相关,与肺活量体重指数呈负相关.     

Markedness and its Interpretation in Language Use

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.     

Characterization of Ordovician carbonate reservoirs, southeastern Saskatchewan, Canada

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.     

Features of Women's language

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.     

A computer generator for randomly layered structures

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

低渗透非均质砂岩油藏启动压力梯度研究

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。     

On Tragic Consciousness In The Works By Ernest Hemingway

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.     

海南岛地体及其毗邻陆缘晚中生代—新生代古地磁研究和构造演化

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。     

《Chinese Science Bulletin》SUBJECT INDEX TO VOLUME 59(2014)

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Achieving Unusual States of Matter Under High Pressure

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     

Exciton Seebeck in Molecular Systems

Various applications relevant to the exciton dynamics,such as the organic solar cell,the large-area organic light-emitting diodes and the thermoelectricity,are operating under temperature gradient.The potential abnormal behavior of the exicton dynamics driven by the temperature difference may affect the efficiency and performance of the corresponding devices.In the above situations,the exciton dynamics under temperature difference is mixed with