Specific intellectual deficits in children with early onset diabetes mellitus

27 children with early onset (less than 4 years) diabetes (EOD), 24 with late onset (greater than 4.0 years) diabetes (LOD), and 30 sibling controls were compared in their performance on tests of intellectual functioning and school achievement. The results indicated that children with EOD, particularly girls, scored lower than the other groups of diabetic children and siblings on tests of visuospatial but not verbal ability. Many of the children with EOD were also having difficulty at school, and a number were currently receiving special education. Diabetic children with earlier onset had more hypoglycemic convulsions than those with later onset. Regression analyses revealed that duration of illness, age of onset, and hypoglycemic convulsions significantly predicted spatial ability.     

影响大学生健康因素调查分析

近年来 ,当代大学生的健康问题已成为我国体育学术界普遍关注的热点。但对于大学生的生活方式及其与健康之间的关系的研究还很少。本文对天津大学等 7所院校的 43 0名在校大学生的生活方式中影响健康的因素进行了抽样调查和分析 ,为帮助大学生建立科学、健康的生活方式 ,提高健康水平提供参考。1　吸　烟　　吸烟的危害众所周知 ,调查结果显示 ,在被调查的学生中 ,吸烟和偶尔吸烟的占 42 .100 。高出全国 2 0岁以上成年人总吸烟率 3 8.3 900 的比例。　　其中 ,男同学吸烟的比例较大。大学生吸烟的主要原因 :一是学习与竞争压力较大 ,以…     

Optimal design of Stewart platforms based on expanding the control bandwidth while considering the hydraulic system design

We proposed an optimal design method to expand the bandwidth for the control of large hydraulic Stewart platform. The method is based on generalized natural frequency and takes hydraulic oil into consideration. A Lagrangian formulation which considers the whole leg inertia is presented to obtain the accurate equivalent mass matrix. Using the model, the effect of leg inertia and the influence of design parameters on the generalized natural frequency are investigated. Finally, numerical examples are presented to validate and confirm the efficiency of the mathematical model. The results show that the leg inertia, especially the piston part plays an important role in the dynamics. The optimum diameter ratio of the base to the moving platform is between 2 and 3, and the optimum joint angle ratio of the base to the moving platform is about 1. The smaller joint angles and a longer leg stroke are favorable for raising system frequencies. The system oil should be preprocessed for large platforms with a requirement for good dynamic performance.     

唐君毅教育哲学思想及其当代启示

唐君毅教育哲学思想体现为:教育为延续未来的人类文化,造就发展人类文化个体人格的意识,教育意识中包含对于受教育者的自然生命的身心发展,实际生活的习惯体验,从而对教育者进行陶冶,最终担负起人类文化教育传播与继承的责任。     

大学教师运动锻炼与健康状况研究

运用问卷调查法对大学教师的运动锻炼情况和身体健康状况、态度、兴趣、参与程度等因素进行分析,结果表明,教师健康状况令人担忧,特别是年龄较高的教师健康水平下降速度明显,年轻教师身体状况也不容乐观。体育设施不足、经费匮乏、方法不当是阻碍健身计划实施的重要因素;体育意识淡泊、锻炼效果不佳是影响广大教师进行体育活动不可忽视的心理因素。     

试析高校体育如何贯彻创新教育

采用文献综述和分析法,针对高校体育实施素质教育培养创新人才的教育观念,分析了创新教育的基本内涵、素质教育的实质是培养创造能力、创新教育在全面推进素质教育中的作用以及创新功能应为高等教育的首要功能的基本理论问题;重点探讨了高校体育培养学生的创新意识、发散性思维的基本观点.     

Communicating Prevention: The Effects of the keepin' it REAL Classroom Videotapes and Televised PSAs on Middle-School Students' Substance Use

This study sought to determine if exposure to two communication-oriented activities, videotapes and public service announcements, accounts for changes in substance use among adolescents participating in the Drug Resistance Strategies Project's keepin' it REAL adolescent substance use prevention curriculum. Middle-school students (4,734, 72% Latino) responded to questionnaires related to these analyses. An analysis of covariance (ANCOVA) model was fit separately to six substance use outcomes. The results suggested that intervention students who saw four or five videos engaged in less substance use in the past month than did students who saw fewer videos. Having seen the PSAs one or more times did not predict the reported change in substance use.     

张掖市土地利用/覆盖变化人口驱动力分析

人口作为土地利用/覆盖变化中一个活跃的因素，人口数量的多少直接影响到土地利用/覆盖变化.现以位于黑河流域中上游的张掖市为例，对该市土地利用/覆盖变化进行了分析，结果表明：人口因素对现代土地利用/覆盖变化有直接的驱动作用.