Insect-specific proteins identified

With nearly one million classified and named species, the insecta clade is the most diverse group of higher organisms on earth in terms of category, behavior, physiology and genetics.     

建设师的汽车作品设计

他的建筑作品采用独特的缠绕式结构．风格飘逸。如果他用这种理念来设计一种全新的概念车．那将会是什么样呢？     

信息通信技术用户的类型

1调查结果概要 ·8％的美国人是参与性网络及移动设备的深度使用者。 ·另外23％的美国人是务实技术的接受者——他们使用高科技工具紧跟社会网络并有效率的工作。     

未来的新兴职业

现代社会,很多人对"理财"趋之若鹜,却认识不到合理分配时间的重要性。君不见成天忙得焦头烂额者,比比皆是!我乃一名职业时间分配师。专门提供最佳的时间分配方案。谁聘请我,谁就将拥有活力充沛的身体、直线飙升的事业、游刃有余的生活!     

Teachers' education, classroom quality, and young children's academic skills: results from seven studies of preschool programs

In an effort to provide high-quality preschool education, policymakers are increasingly requiring public preschool teachers to have at least a Bachelor's degree, preferably in early childhood education. Seven major studies of early care and education were used to predict classroom quality and children's academic outcomes from the educational attainment and major of teachers of 4-year-olds. The findings indicate largely null or contradictory associations, indicating that policies focused solely on increasing teachers' education will not suffice for improving classroom quality or maximizing children's academic gains. Instead, raising the effectiveness of early childhood education likely will require a broad range of professional development activities and supports targeted toward teachers' interactions with children.     

Factors influencing the incidence of utilization deficiencies and other patterns of recall/strategy-use relations in a strategic memory task

Factors that influence the incidence of utilization deficiencies and other recall/strategy-use patterns on a strategic memory task were evaluated in two hundred and fourteen 7- and 9-year-old children. Both utilization deficiencies and the incidence of children showing increases in both recall and strategy use over phases were more likely to be observed on phase transitions involving prompting or when different lists of items were included on consecutive trials; in contrast, increases in recall in the absence of increases in strategy use were more likely to be found between trials consisting of the same stimulus items. This research clearly indicates that patterns of recall/strategy-use relations, including utilization deficiencies, vary meaningfully with the age of the child and a variety of contextual factors.     

Adolescents' cognitive and emotional responses to marital hostility

Early adolescents' (11-14 years) responses to marital hostility were examined in a sample of 416 families. The cognitive-contextual perspective and emotional security hypothesis guided the study and 9 adolescent responses were identified. Prospective associations were examined in several structural equation models that included adolescent problems as outcomes. Self-blame and perceived threat uniquely mediated the association between Year 1 marital hostility and Year 3 adolescent externalizing problems (p<.05). Self-blame, lower constructive representations, internalization of feelings, avoidance, and emotional dysregulation uniquely mediated the association between Year 1 marital hostility and Year 3 internalizing problems. Specific cognitive and emotionally based responses are important to understanding how martial hostility affects youth and need to be considered within an integrated model.     

桂林街9号

作为这座城市最陈旧的居民区,承载了林囡囡十九年心事的桂林街终于要拆了。林囡囡踩着一双破了个洞的帆布鞋,一遍遍反复丈量着街道,在每一棵桃树下收集着失落的往事、失落的老林、失落的赵小春．和失落的母亲。     

美国优质网络课程的案例介绍

近十年来,我国高校网络课程建设成果显著,但其中暴露出的理论与实践相脱离的现象也比较严重。通过介绍美国德克萨斯A&M大学Dooley教授开设的网络课程《远程教育的高级方法》,尝试剖析其作为优质网络课程在管理平台、教学设计、交互安排、评价方法以及支持服务等方面所具有的特征,以期与国内远程教育的研究者和实践者分享经验。