Effectiveness of quality physical education in improving students' manipulative skill competency

Purpose： This study aimed to examine the extent to which the quality physical education teaching （QPET） practices contributed to improving 4th- and 5th-grade students＇ manipulative skill competency. Methods： Participants were 9 elementary physical education （PE） teachers and their 4th- and 5th-grade students （n = 2709 3420）. The students＇ skill competency was assessed with 3 manipulative skills using PE metrics assessment rubrics. The PE teachers＇ levels of QPET were assessed by coding 63 videotaped lessons using the assessing quality teaching rubrics （AQTR）, which consisted of 4 essential dimensions including task design, task presentation, class management, and instructional guidance. Codes were confirmed through inter-rater reliability （82.4%, 84.5%, and 94%）. Data were analyzed through descriptive statistics, multiple R2 regression models, and independent sample t tests. Results： This study indicated that the 4 essential dimensions of QPET were all significant contributors to students＇ manipulative skill competency. These predictors were significantly higher for boys than for girls in soccer and striking skills, while they were significantly higher for girls than for boys in throwing skill competency. Of the 4 essential dimensions of QPET, task presentation played the most significant role in contributing to all 3 skill competencies for both boys and girls. Further, students who experienced high QPET were significantly more skillfully competent than those students who did not have this experience. Conclusion： It was concluded that the QPET practices played a significantly critical role in contributing to students＇ manipulative skill competency.

Comparison about parametric effects on wave propagation characteristics

The frequency effects on the velocities and attenuations of the bulk waves in a saturated porous medium are numerically studied in the cases of considering and neglecting the compressibility of solid grain, respectively. The results show that the whole frequency can be divided into three parts, i.e., low frequency band, medium frequency band, and high frequency band, according to the variation curves and the characteristic frequency. The compressibility of the solid grain affects the P1 wave distinctively, the S wave tiny, and the P2 wave little. The effects of the porosity and Poisson＇s ratio on the bulk waves are numerically analyzed. It is found that both the porosity and Poisson＇s ratio have obvious effects on the bulk waves. Compared with the results in the case of neglecting the porosity-moduli relation, the results in the case of considering the porosity-moduli relation are more reasonable. The results in the case of considering the porosity-moduli relation can be degenerated into the results of elastic solid and pure fluid, while the results in the case of neglecting the porosity-moduli relation cannot be degenerated into the results of elastic solid and pure fluid. Therefore, the porosity-moduli relation must be considered in the parametric study for a certain porous medium.

Manipulative skill competency and health-related physical fitnes in elementary school students

Background：Improving motor skill competency and enhancing health-related physical fitnes are desired learning outcomes for school-aged children.Achieving motor skill competency and a healthy level of physical fitnes lay a foundation for being a physically active person across a lifetime.The purpose of this study was to investigate relationships between levels of manipulative skill competency and physical fitnes for elementary school boys and girls.Methods：In this study,565 fourth-grade students and their 9 physical education teachers were voluntary participants.The students were assessed in 4 basic specialized manipulative skills and 4 fitnes components during regular physical education lessons.Data were analyzed with descriptive statistics,univariate analyses,and multiple R2 liner regression methods.Results：Boys were more proficien at the manipulative skills than girls,while girls had significan higher percentages for meeting the healthy fitnes zone for the fitnes tests than boys.Four manipulative skills significant y predicted progressive aerobic cardiovascular endurance run（PACER）,push-up,and trunk lifts tests at p〈0.05 level,but not curl-up test for both boys and girls.Boys and girls in the skill-competent group significant y outperformed their counterparts in the skill-incompetent group on PACER,push-up,and trunk lifts tests at p〈0.05 level,with an exception of curl-up test.Conclusion：The more competent in manipulative skills,the higher healthy level in cardiovascular endurance,upper-body muscular strength and endurance,and fl xibility the students demonstrated.Demonstrating manipulative skill competence and maintaining a healthy level of physical fitnes are 2 major desired learning outcomes for elementary school students to be able to achieve.

财务数字化赋能管理会计研究—海通证券数字财务实践

以“大、智、移、云、物、区”为代表的新一代财务数字化技术正在深度影响着管理会计的走向。基于管理会计展开的企业流程重组、决策支持、组织架构重塑已成为企业财务数字化转型的重要组成部分。近年来,海通证券紧紧围绕国家“十四五”发展规划和公司集团化、国际化、信息化的发展战略,以“风险管控+业财融合+精细化管理”为目标,以“科技+数据+场景”为驱动,依靠内生动力进行系统整合,通过全面深化财务数字化技术赋能管理会计,切实推进业财融合,防范财务风险,支持经营决策,服务战略发展,促进财务转型和职能转变,全面提升管理能级。

数字财务推动企业战略落地——海通证券数字财务创新实践案例

随着数字经济的到来,大数据、人工智能、移动互联网、云计算、物联网等技术成为企业发展的新动能,也催生了财务管理的新模式。数字化技术能够让财务更好地发挥企业天然数据中心的优势,从后台走到前台,为企业提供以数据驱动为核心的预测与决策支持、业务支持以及风险控制,支撑企业战略执行和高质量发展。作为国内领先的证券公司之一,海通证券较早开始企业数字化建设,而财务数字化转型是海通证券股份有限公司(以下简称“海通证券”)数字化战略的切入点和着力点。近年来,海通证券紧紧围绕国家“十四五”规划和公司的整体发展战略,运用前沿科技,积累丰富数据,挖掘应用场景,开展系统整合,逐步构建数字财务体系,努力从提升管理能级、助力业务发展、强化风险控制等方面发挥数字财务的威力,全方位多角度地支撑企业“集团化、国际化、信息化”的战略,为证券行业的数字财务实践探索提供了有价值的参考和借鉴。