基础运动技能群是各项运动技能学习的基础及不可逾越的辅助工具,是学校体育发展的"铺路石"。目前对运动技能学习研究较多,但系统研究基础运动技能群学习与评价方法的甚少。研究目的:根据运动技能学习研究理论与实践,构建基础...基础运动技能群是各项运动技能学习的基础及不可逾越的辅助工具,是学校体育发展的"铺路石"。目前对运动技能学习研究较多,但系统研究基础运动技能群学习与评价方法的甚少。研究目的:根据运动技能学习研究理论与实践,构建基础运动技能优化群模型,设计技能群指标,提出系统评价方法。以Movement Education and Fleishman的知觉运动能力与身体素质能力为主线,根据我国学校体育的实际情况,从Movement Education的身体意识、空间、运动特点和关联等要素中,把基础运动技能群归化分为九大类别:跑、跳、投、空间判断、传接物体、踢、滚翻、平衡和悬垂,构建了五大基础运动技能优化群与评价指标,发展与促进知觉运动能力与身体素质能力,对田径、篮球、足球、体操等项目技能发展具有重要作用。展开更多
Technology gives many oppurtunites for cattle farmers for easier and effective herd management possibilities. New era provides many realistic applications using smart applications for farmers. Especially milking is ve...Technology gives many oppurtunites for cattle farmers for easier and effective herd management possibilities. New era provides many realistic applications using smart applications for farmers. Especially milking is very popular for engineering applications. Reproductive technologies can be seen as frontier applications. Reproductive performances of the dairy farms can be defined as number of calves for cows in a year. It means new material for meat and milk production. Because new female calf means new cow for her while male calf means new material for beef. If meat and milk production are to be increased, cow productivity, i.e. the number of calves produced lifetime must be improved and increased. Although varying among herds, annual average herd incidences of reproductive disorders and reproductive performance were similar to those reported. Managerial practices influenced incidences of retained placenta and uterine infection, days open of cows not bred and of all cows, services per conception and percentages of herd open more than 100 days and culled for low production. Good heat detection programs can have a major impact on overall herd reproductive performance. The best heat detection programs start with careful timing, good observation and the effective use of detection aids. Being able to distinguish and interpret cow behaviour and other signs is critical, so are good record keeping and training for the people responsible for heat detection. Generaly, farmers with the best heat detection results use a combination of observation and heat detection aids. Several options are available to aid heat detection and increase heat detection rates. Although a rich variety of methods have been introduced for the detection of oestrus, a more accurate and practical method is still required.展开更多
文摘基础运动技能群是各项运动技能学习的基础及不可逾越的辅助工具,是学校体育发展的"铺路石"。目前对运动技能学习研究较多,但系统研究基础运动技能群学习与评价方法的甚少。研究目的:根据运动技能学习研究理论与实践,构建基础运动技能优化群模型,设计技能群指标,提出系统评价方法。以Movement Education and Fleishman的知觉运动能力与身体素质能力为主线,根据我国学校体育的实际情况,从Movement Education的身体意识、空间、运动特点和关联等要素中,把基础运动技能群归化分为九大类别:跑、跳、投、空间判断、传接物体、踢、滚翻、平衡和悬垂,构建了五大基础运动技能优化群与评价指标,发展与促进知觉运动能力与身体素质能力,对田径、篮球、足球、体操等项目技能发展具有重要作用。
文摘Technology gives many oppurtunites for cattle farmers for easier and effective herd management possibilities. New era provides many realistic applications using smart applications for farmers. Especially milking is very popular for engineering applications. Reproductive technologies can be seen as frontier applications. Reproductive performances of the dairy farms can be defined as number of calves for cows in a year. It means new material for meat and milk production. Because new female calf means new cow for her while male calf means new material for beef. If meat and milk production are to be increased, cow productivity, i.e. the number of calves produced lifetime must be improved and increased. Although varying among herds, annual average herd incidences of reproductive disorders and reproductive performance were similar to those reported. Managerial practices influenced incidences of retained placenta and uterine infection, days open of cows not bred and of all cows, services per conception and percentages of herd open more than 100 days and culled for low production. Good heat detection programs can have a major impact on overall herd reproductive performance. The best heat detection programs start with careful timing, good observation and the effective use of detection aids. Being able to distinguish and interpret cow behaviour and other signs is critical, so are good record keeping and training for the people responsible for heat detection. Generaly, farmers with the best heat detection results use a combination of observation and heat detection aids. Several options are available to aid heat detection and increase heat detection rates. Although a rich variety of methods have been introduced for the detection of oestrus, a more accurate and practical method is still required.
