分数乘除复合应用题的教学体会

分数乘除复合应用题是分数应用题的基础知识，其解法特别，数量关系看似简单，但在实际解答中又容易混淆，因此也是教学的一大难点。那么，怎样才能教好而又让学生学好这一部分内容呢？结合工作实际，我谈谈自己的教学体会。     

论大学生篮球意识的培养

概述篮球意识的概念、分析篮球意识的特点,并初步探讨了如何在高校篮球教学中培养大学生的篮球意识．文章的论述对全面提高大学生的篮球水平,发展我国篮球后备人才具有极其重要的意义．     

海洋天然气勘探开发进入新时期

目前已经发现了莺歌海盆地、琼东南盆地、东海盆地西湖凹陷、渤海湾盆地渤中凹陷、江口盆地文昌A凹陷等五个含气区.     

Relation between cognitive and motor performance in 5- to 6-year-old children: results from a large-scale cross-sectional study

The relation between cognitive and motor performance was studied in a sample of 378 children aged 5-6. Half of these children had no behavior problems; the others were selected for externalizing (38%) or internalizing problems (12%). Quantitative and qualitative aspects of motor performance were related to several aspects of cognition, after controlling for the influence of attention. No relation between global aspects of cognitive and motor performance was found. Specific positive relations were found between both aspects of motor performance, visual motor integration and working memory, and between quantitative aspects of motor performance and fluency. These findings reveal interesting parallels between normal cognitive and motor development in 5- to 6-year-old children that cannot be ascribed to attention processes.     

Fetal pain: life in troubled waters

Maternal well-being is the key to fetal well-being. A fetus is highly vulnerable and sensitive to pain and stress, and exposure has the potential for negative developmental consequences. Childbirth educators can help raise parental awareness about the importance of the maternal environment for best outcomes in fetal development.     

Testing the double-deficit hypothesis in an adult sample

The double-deficit hypothesis of dyslexia posits that reading deficits are more severe in individuals with weaknesses in phonological awareness and rapid naming than in individuals with deficits in only one of these reading composite skills. In this study, the hypothesis was tested in an adult sample as a model of reading achievement. Participants were parents of children referred for evaluation of reading difficulties. Approximately half of all participants reported difficulty learning to read in childhood and a small subset demonstrated ongoing weaknesses in reading. Structural equation modeling results suggest that the double-deficit hypothesis is an accurate model for understanding adult reading achievement. Better reading achievement was associated with better phonological awareness and faster rapid automatized naming in adults. Posthoc analyses indicated that individuals with double deficits had significantly lower reading achievement than individuals with single deficits or no deficits.     

对恶性价格竞争的初探

市场竞争是产品的诸多竞争要素的竞争组合,而在中国的很多行业,这种组合被简化为单一的价格竞争,而价格竞争在实际操作中又被简单的理解为价格的比拼.这种将市场竞争简单化、低级化的市场行为直 接导致恶性价格竞争的形成,今天恶性价格竞争在我国的很多行业已经非常地普遍,给整个社会经营环境造成很大的负面影响,对恶性价格竞争的形成原因的研究无疑具有非常重要的现实意义.     

Childhood physical abuse, early social support, and risk for maltreatment: current social support as a mediator of risk for child physical abuse

OBJECTIVE: The study investigated whether perceptions of social support in adulthood partially mediated the associations between childhood experiences (i.e., receipt of physical abuse and levels of early social support) and adult risk for child physical abuse. METHOD: Participants included 598 general population adults who completed self-report measures designed to assess childhood physical abuse, perceptions of early and current social support, and risk factors for child physical abuse. Structural equation modeling was used to test and cross validate a model that included the direct effects of child physical abuse and early social support on child physical abuse risk, as well as mediated effects through an influence on adult perceptions of social support. RESULTS: Childhood physical abuse and early social support covaried, such that receipt of physical abuse was associated with lower levels of perceived early social support. Early support, but not child physical abuse, had an indirect effect (i.e., through current support) on child physical abuse risk. More specifically, levels of early support were directly related to adult perceptions of support, and adult perceptions of support were inversely associated with child physical abuse risk. Childhood physical abuse was directly related to child physical abuse risk. CONCLUSIONS: Low levels of early support may impact risk for child physical abuse by affecting perceptions of others as supportive in adulthood. The receipt of physical abuse in childhood, however, does not appear to impact perceptions of support in adulthood. Research is needed to identify additional factors that may explain the association between receipt of physical abuse in childhood and increased risk of child physical abuse in adulthood.