Adult health in child care: Health status,behaviors, and concerns of teachers,directors, and family child care providers

This article reports the results of a statewide survey of health status, behaviors, and concerns of 446 randomly selected early childhood professionals (78 group child care center directors, 236 teachers, and 132 family child care providers). More than 85% of each professional group rated their health as either good or excellent; 87% have worked when ill. Twenty-five percent of the sample (33% directors, 15% staff, 36% family providers) have become pregnant since working in child care. Respondents reported being “overweight” at levels more than twice state adult frequencies. Dramatic changes were reported in perceived frequency of various symptoms and becoming ill since working in child care. Significant differences between the groups were found for number of absences due to illness, nutrition, stressfulness of working in child care, and ergonomics and physical demands of the job.     

Using video to support in-service teacher professional development: the state of the field,limitations and possibilities

Video is increasingly used to support in-service teacher professional development (TPD). Advances in affordability and usability of technology mean that interest is set to develop further. Studies in this area are diverse in terms of scale, methodology and context. This places limitations on undertaking a systematic review; therefore the authors use a scoping review approach. Their analysis involves 82 studies from which they thematise subtopics and assess research characteristics. This provides a much-needed analysis to inform researchers and practitioners. Additionally, the authors identify robust studies that consider the effect of video on teacher cognition and classroom practice. A consistent finding is that video is effective when used as part of TPD. Since studies largely use thematic qualitative analysis, however, this consensus needs further examination. Further qualitative and quantitative research is needed to identify how the use of video impacts on classroom practices.     

Health care delivery and deaf people: practice, problems, and recommendations for change

Due to complex individual, interpersonal, and systemic factors, deaf and hard of hearing (d/hoh) individuals often receive inadequate, inappropriate, and unethical health care. This article begins with a review of the relevant socioeconomic and legal issues and the health status of d/hoh individuals. I then review health care starting with the patient's knowledge base, personal experiences, and understanding of health care relationships. I discuss the Deaf community's perspectives, providers' views about disability, communication between providers and deaf patients, and barriers encountered in health care delivery. The article concludes by assessing these factors' effects on health care delivery to d/hoh people, reviewing the ethical implications, and making recommendations for change.     

视频与视频字符叠加实验仪的研制

介绍了视频与视频字符叠加实验仪的研制背景、组成、工作原理、主要电路的设计方法及应用情况。实验仪电路主要由三部分组成：信号分离电路、控制计数电路和切换开关电路。实验内容设计为开放式、研究性,因而通过本实验仪器,学生不仅可以巩固视频技术知识,了解该领域的最新研究和应用进展情况,而且在大规模可编程逻辑器件的应用和硬件描述语言方面的学习也将得到提高。教学实践表明学生通过该实验仪不但可以开阔视野,更有利于培养学生的创新意识和提高动手能力。     

A survey of video game players in a public,urban research university

A survey was conducted in a public, research university located in a large and diverse metropolitan area in the southeastern part of the USA. The purpose of the survey was to determine both the positive and negative personal, educational, social, and work related consequences of playing video games. Nearly two‐thirds of the 203 participants in this study were of Hispanic heritage. A majority of the sample of participants was derived using a school intercept, as opposed to mall intercept, strategy. The remaining participants were obtained using snowball, and convenience sampling techniques. Statistically significant differences between males and females were found in the areas of communication, decision making in daily lives, leadership skills, collaborating, functioning in a team, and giving directions to others. These differences were favorable to males.     

Structured video recall: a museum application

The authors had the task of evaluating an innovative style of exhibition in the Royal Museums of Scotland. Believing in the principle (established by the Gothenberg Group) that learning must be studied from the viewpoint of the learner, the authors sought a practicable technique of formative evaluation which would give illuminative insights into experience. Retaining the tools of questionnaire and interview to provide baseline data on reported experience and opinion, they applied Kagan's technique of Interpersonal Process Recall (structured video recall) to gain direct insight into the experience of visitors to the exhibition. This account explains how the technique suited this purpose, and describes the modifications found necessary to classic IPR for this context.     

Reconsidering the use of video clubs for student-teachers' learning during field placement: Lessons drawn from a longitudinal multiple case study

Although video clubs have been used to support (student) teachers' learning through reflection upon practice, less attention has been paid to their potential use for supporting changes in participants' practice over a period of time. Prior work has also largely treated (student) teachers as an undifferentiated whole that benefits in similar ways from video clubs. In this study, we problematize this assumption by drawing on three cases of student teachers to exemplify three different learning paths while participating in a video club during field placement. Reflecting on these findings, we discuss implications for differentiating the video-club approach to address different student teachers.     

科学实验与产业化生产相结合,促成了蒸汽机的发明——瓦特发明蒸汽机过程的启迪

通过介绍瓦特发明、制造蒸汽机的成功过程,探讨了人才培养模式及科学研究的成功之道.指出:人才的培养要注重基础理论知识及动手能力的培养,两者相结合,并且还要注意培养学生具有良好的人际交往能力;科学研究要与产业化生产相结合,并按企业机制运作,科研实验室要"既靠科技开发推动,又靠市场开拓拉动".