Mode of communication, perceived level of understanding, and perceived quality of life in youth who are deaf or hard of hearing

Given the important role of parent-youth communication in adolescent well-being and quality of life, we sought to examine the relationship between specific communication variables and youth perceived quality of life in general and as a deaf or hard-of-hearing (DHH) individual. A convenience sample of 230 youth (mean age = 14.1, standard deviation = 2.2; 24% used sign only, 40% speech only, and 36% sign + speech) was surveyed on communication-related issues, generic and DHH-specific quality of life, and depression symptoms. Higher youth perception of their ability to understand parents' communication was significantly correlated with perceived quality of life as well as lower reported depressive symptoms and lower perceived stigma. Youth who use speech as their single mode of communication were more likely to report greater stigma associated with being DHH than youth who used both speech and sign. These findings demonstrate the importance of youths' perceptions of communication with their parents on generic and DHH-specific youth quality of life.     

等离子体粒子加速器

等离子体中产生的电场能够使电子加速以获得高能。这个方法可望使场强比能量最大的传统加速器的场强高出10，000倍。     

"比特"与"字节"单位符号规范化标注建议

国家标准未对单位"比特"和"字节"的符号做出明确规定,因此,在论文中对它们的标注很不统一.针对这一问题,简要介绍比特、字节的物理概念,分析"比特"和"字节"单位符号的使用现状,并提出规范化标注的建议.     

Teaching human genetics with mustard: rapid cycling Brassica rapa (fast plants type) as a model for human genetics in the classroom laboratory

We have developed experiments and materials to model human genetics using rapid cycling Brassica rapa, also known as Fast Plants. Because of their self-incompatibility for pollination and the genetic diversity within strains, B. rapa can serve as a relevant model for human genetics in teaching laboratory experiments. The experiment presented here is a paternity exclusion project in which a child is born with a known mother but two possible alleged fathers. Students use DNA markers (microsatellites) to perform paternity exclusion on these subjects. Realistic DNA marker analysis can be challenging to implement within the limitations of an instructional lab, but we have optimized the experimental methods to work in a teaching lab environment and to maximize the “hands-on” experience for the students. The genetic individuality of each B. rapa plant, revealed by analysis of polymorphic microsatellite markers, means that each time students perform this project, they obtain unique results that foster independent thinking in the process of data interpretation.     

Doing the right thing: infants' selection of actions to imitate from observed event sequences

Two studies were conducted to investigate how 14- to 16-month-old infants select actions to imitate from the stream of events. In each study, an experimenter demonstrated two actions leading to an interesting effect. Aspects of the first action were manipulated and whether infants performed this action when given the objects was observed. In both studies, infants were more likely to imitate the first action when it was physically necessary to generate the effect, and in Study 2 they were also more likely to imitate the action when it was socially cued. It seems that infants' own knowledge of space and causality as well as their sensitivity to others' social signals both contribute to their tendency to imitate actions.     

事件理论视域下的体育概念探究

体育概念是长期以来一直存在的一个基本理论问题,是关于体育“是什么”“为什么”以及“如何是”的理性思考,体育的非实体特征、体育行为的心—物二元关系及体育文化深刻历史性和社会性,使得长期以来一直存在着“此体育与彼体育”的价值错位和子项兼容,这需要进一步由“体”返回“本”,继续探寻被遮蔽体育之“本”。研究认为,事件理论下,体育是主体基于场地、器材、教练、裁判等体育事物而进行的有意识的事件集合,是一个相互联结、包容的,持续发展的系统。     

开展数学实验 培养创造才能——《初中数学、普通高中数学实验教学基本目录》解读

为有效贯彻教育部《基础教育课程教学改革深化行动方案》,落实《关于加强和改进中小学实验教学的意见》相关要求,强化科学教育,教育部教育技术与资源发展中心(中央电化教育馆)于2023年11月23日正式发布了《中小学实验教学基本目录(2023年版)》。文章在一定的理论分析和教学实践的基础上,从数学实验的内涵、数学实验的价值、数学实验教学的建议三方面解读了《初中数学实验教学基本目录》和《普通高中数学实验教学基本目录》,阐述了如何通过开展数学实验,培养学生的创造才能。     

Extending validity evidence for multidimensional measures of coaching competency

This study extended validity evidence for multidimensional measures of coaching competency derived from the Coaching Competency Scale (CCS; Myers, Feltz, Maier, Wolfe, & Reckase, 2006) by examining use of the original rating scale structure and testing how measures related to satisfaction with the head coach within teams and between teams. Motivation, game strategy, technique, and character building comprised the dimensions of coaching competency. Data were collected from athletes (N = 585) nested within intercollegiate men's (g = 8) and women's (g = 13) soccer and women's ice hockey (g = 11) teams (G = 32). Validity concerns were observed for the original rating scale structure and the predicted positive relationship between motivation competency and satisfaction with the coach between teams. Validity evidence was offered for a condensed post hoc rating scale and the predicted relationship between motivation competency and satisfaction with the coach within teams.