运动干预对肥胖女大学生体形态及心肺机能的影响

[目的]为探讨干预方法对肥胖女大学生身体形态和心肺机能的影响。[方法]选取安徽文达信息工程学院非体育专业48名在校肥胖女大学为研究对象,分成对照组和试验组(各组24名),进行为期4个月的运动干预试验,试验前后分别测试受试对象的各项指标,并对结果进行比较分析。[结果]干预前,2组受试者在各项指标方面差异无统计学意义;试验组干预前、后,除身高无显著差异外,身体围度、皮褶厚度及心肺机能指标均差异有统计学意义;对照组干预前、后各项指标均差异无统计学意义;干预后,试验组和对照组除身高差异无统计学意义外,其他指标均显著改善。[结论]有氧运动结合力量训练的干预模式可以降低肥胖女大学生的体内脂肪含量,减少身体围度和皮褶厚度,提高心肺能力。     

滑冰与羽毛球运动对7～8岁健康男性青少年 静态平衡能力的影响

[目的]探讨滑冰与羽毛球运动对青少年静态平衡能力的影响。[方法]采取试验法、文献资料法及数理统计法,通过招募90名7～8岁健康男性青少年作为研究对象,随机分成滑冰组、羽毛球组和对照组,每组均30人,3组受试者在身高、体重、年龄3项指标上均无统计学意义(P0.05)。对滑冰组和羽毛球组进行12周的运动干预,试验前后采用IIM-BAL-100平衡机能测试仪进行静态平衡测试,实验所得数据应用单因素方差进行分析。[结果]滑冰组与对照组在睁眼双足站立和睁眼线型步2种站姿的4项测试指标,即重心动摇速度、重心动摇角度、外周面积和动摇总轨迹长方面均具有非常显著性差异(P0.01);羽毛球组与对照组在5种站姿指标对比中具有显著性差异(P0.05);滑冰组与羽毛球组对比,在双足睁眼与右足睁眼站立测试中,外周面积和动摇总轨迹长2项指标存在非常显著性差异(P0.01)。[结论]滑冰与羽毛球运动都能改善青少年的静态平衡能力,且滑冰运动的效果优于羽毛球运动。     

基于学习动机激发理论的BOPPPS教学模式实践探索——以《医疗器械法规》课程为例

目的研究基于学习动机激发理论的BOPPPS教学模式在《医疗器械法规》教学中的应用,并分析评价实际教学效果。方法选取医疗器械学院214名学生为研究对象,进行随机分组,对照组105名学生,采用传统的模式教学,试验组109名学生,采用新模式教学,对比分析课程满意度和学生综合成绩。结果试验组教学满意度结果明显优于对照组,差异有统计学意义(P0.05)。试验组学生综合成绩明显优于对照组,差异有统计学意义(P0.05)。结论基于学习动机激发理论的BOPPPS教学模式能够提升教学效果,值得推广使用。     

腹腔镜胃癌根治手术的临床研究

[目的]探讨腹腔镜胃癌根治手术的安全性、可行性及肿瘤根治性.[方法]选择2005年12月～2010年12月普外科行腹腔镜胃癌D2根治术35例为腹腔镜组,并选择同期开腹胃癌根治术40例为对照组,比较两组手术相关指标、肿瘤根治性指标及术后随访患者的生存率.[结果]腹腔镜组手术时间较对照组长,术中出血量较对照组少,切口长度较对照组短.差异具有统计学意义(均P＜0.05);腹腔镜组术后排气时间、首次进流质时间及术后住院时间明显较对照组缩短(P＜0.05),两组总并发症发生率比较差异无统计学意义(P＞0.05);腹腔镜组肿瘤根治性指标淋巴结清扫数目、近远端切缘距离及1、3、5年生存率均与对照组差异无统计学意义(P＞0.05).[结论]腹腔镜胃癌D2根治术是安全、可行的,能达到与开腹根治性全胃切除术相同的肿瘤根治性,且比开腹手术更具微创优势.     

中国男篮现状与差距审视———基于伦敦奥运会数据分析

运用文献资料、对比、数理统计、录像观察等方法对伦敦奥运会男篮比赛数据进行分析,结果表明:世界竞技篮球区域发展不均衡,欧、美竞技水平高且差距正逐步缩小,延续欧美抗衡局面,体现运动员国际化交流与融合发展新趋势;中国男篮竞技水平与成绩出现较大滑坡,与世界强队差距被拉大,逐步偏离世界竞技篮球发展主轨道;中国男篮呈现"年轻比赛经验少,身高体单对抗弱,克托莱指数低,体能差"特征;其得分、失分、投篮次数、命中率、篮板球、助攻、失误、抢断指标与对手存在显著差异(p<0.05),盖帽、犯规指标无显著差异(p>0.05);并全面分析中国男篮攻防现状、问题及与欧美球队的差距,提出发展建议,为提升中国男篮竞技水平提供理论参考.     

微量营养素对人类免疫缺陷病毒感染者免疫状态的影响

目的 研究微量营养素对人类免疫缺陷病毒（HIV）感染者体内免疫状态的影响。方法 将102名HIV感染者分为对照组和试验组,分别给予安慰剂和复合微量营养素片,在研究开始及结束时分别进行体格测量和免疫状态测定。结果 两组受试者在年龄、身高、体重和男女性别比方面差异没有统计学意义(P均＞0.05)。研究前两组受试者体内的CD3+、CD4+、CD8+ T淋巴细胞水平和IgA、IgG、IgM、C3水平差异没有统计学意义(P均＞0.05);研究后试验组CD3+、CD4+、CD8+ T淋巴细胞水平和IgA、IgG、IgM、C3水平均明显高于研究前和对照组(P均＜0.05),对照组与研究前差异无统计学意义(P均＞0.05)。结论 补充微量营养素能改善HIV感染者的细胞和体液免疫功能。     

椭圆机高强度间歇训练与有氧训练对T2DM患者糖脂代谢与体质指标的影响

目的观察椭圆机HIIT与有氧训练对T2DM患者糖脂代谢与体质指标的影响。方法将T2DM患者分为椭圆机HIIT(H组)、有氧(A组)和对照组(C组),三组均按医生要求服药,C组仅服药,H组和A组除服药外还进行12周椭圆机HIIT与有氧训练。结果三组的HbA1c、TG、FBG、Tch和LDL-C均有下降,H组和A组下降更显著(P0.05)。两实验组的WHR、BW、体脂%、WC和BP显著减小(P0.05),但HDL-C和BMI无显著差异(P0.05)。C组除BP明显下降外(P0.05),其他体质指标变化不明显(P0.05)。两实验组的糖脂代谢指标下降水平差别不大(P0.05),但H组的HDL-C、WHR、BMI、体脂%、WC和BP改善幅度稍优于A组(P0.05)。结论 HIIT与有氧训练均能有助于提高药疗疗效,改善糖脂代谢,增强患者体质;HIIT在AS预防、时效性与依从性方面略优于有氧训练,可考虑将HIIT作为有氧训练的替代或有益补充。     

中国南方黎族和北方哈萨克族大学生身体特征差异性研究

通过比较中国南方黎族和北方哈萨克族大学生的体质特征,为少数民族地区体育和卫生工作提供参考.对南方黎族和北方哈萨克族大学生的同类体质测试指标的统计分析结果显示:黎族大学生身高(cm)、体重(kg)、肺活量(mL)三项身体形态机能指标显著低于哈萨克族大学生(P0.01);两项身体形态机能派生指标的比较,体重(kg)/身高(cm)×1000指数,黎族大学生显著低于哈萨克族大学生(P0.01),肺活量(mL)/体重(kg)指数,黎族大学生和哈萨克族大学生无显著性差异(P0.05);台阶实验(指数)、坐位体前屈(cm)、立定跳远(cm)三项身体素质指标的比较,黎族男大学生与哈萨克族男大学生立定跳远(cm)成绩无显著性差异(P0.05),黎族女大学生立定跳远成绩显著高于哈萨克族女大学生(P0.01),其他各项身体素质指标比较结果均为黎族大学生显著高于哈萨克族大学生(P0.01).南方黎族大学生与北方哈萨克族大学生各项体质指标的比较结果表明,黎族大学生具有身体形态相对廋小,身体机能耐力相对强,身体素质的柔韧屈伸度大、跳跃灵巧性好的体质特征,哈萨克族大学生具有身体形态较为高大,身体机能耐力相对弱,身体素质的柔韧屈伸度相对小、跳跃能力一般的体质特征.     

YOGA护眼疗法对青少年假性近视的疗效观察

目的观察YOGA护眼疗法对青少年假性近视的临床疗效.方法将符合纳入标准的136名7~15岁青少年假性近视患者作为研究对象,YOGA护眼疗法为试验组,眼保健操组为对照组,比较两组研究对象视力恢复情况.结果对照组3个月后视力高于试验前,但差异无统计学意义(P0.05);试验组3个月后视力高于试验前,差异非常显著,具有统计学意义(P0.01);试验组3个月后治疗效果明显高于对照组试验后,两组疗效差异具有统计学意义(P0.01),结论通过YOGA护眼疗法练习的试验组恢复效果明显高于对照组及试验前,表明YOGA护眼疗法对青少年假性近视恢复具有显著疗效.     

有氧训练对女大学生身体成分与素质的影响

为了研究健身训练对大学生身体成分与身体素质的影响,通过有氧健身训练,分三个阶段对受测女大学生进行测试分析,结果显示体重均值、脂肪均值、腰臀比、瘦体重均值和身体质量指数表现出下降的趋势,而基础代谢率均值、肌肉量、瘦体重指数、100m、800m、立定跳远和仰卧起坐呈上升趋势,试验前后相比,差异均具有统计学意义(P0.05)。表明有氧健身训练对于提高女大学生的身体素质、改善身体成分、美体塑形具有很好的效果。     

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。     

An Index mechanism for multi-scale view in spatial databases

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.     

《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