Online Gaming Practices of Preteens: Independent Entertainment Time and Transmedia Game Play

This article examines online gaming practices of 7‐ to 11‐year‐olds in home settings in the United States. Based on observations and interviews with children and parents, the analysis considers the specificity of preteen experiences within domestic settings. Employing a socio‐cultural approach, the article analyses ways online gaming is strongly shaped by specific social and developmental factors that relate specifically to preteens. Children's online gaming is analysed as a form of independent entertainment time that reflects limitations experienced by preteens in this study as well as developmental characteristics of this age range. Further, the analysis indicates that gaming practices of preteens are embedded in wider transmedia play practices.     

Using Task Clarification,Goal Setting,and Feedback to Decrease Table Busing Times in a Franchise Pizza Restaurant

The current study investigated the effects of task-clarification, and manager verbal and graphic feedback on employee busing times at a pizza restaurant. Using an ABC design, task-clarification was provided in a memo, which described the process, priority, and goal time of busing. The busing time decreased slightly, from an average of 315 seconds during baseline to an average of 284 seconds after the task clarification memo. The majority of this change was accounted for by servers decreasing the time it took them to arrive at the table to begin busing. Subsequent to the employee memo, group feedback was administered in the form of verbal feedback and a weekly graph of average server busing times. This feedback was associated with reductions in busing time to an average 152 seconds. Changes in the feedback phase were caused almost exclusively by reductions in the time it took to clean the table once the server was there. A reversal to near-baseline busing times was observed in a follow-up phase. Prebusing and cross-busing were not associated with shorter busing times.     

Prioritizing Environmental Health Risks in the UAE

This article presents the results of a comparative environmental risk‐ranking exercise that was conducted in the United Arab Emirates (UAE) to inform a strategic planning process led by the Environment Agency‐Abu Dhabi (EAD). It represents the first national‐level application of a deliberative method for comparative risk ranking first published in this journal. The deliberative method involves a five‐stage process that includes quantitative risk assessment by experts and deliberations by groups of stakeholders. The project reported in this article considered 14 categories of environmental risks to health identified through discussions with EAD staff: ambient and indoor air pollution; drinking water contamination; coastal water pollution; soil and groundwater contamination; contamination of fruits, vegetables, and seafood; ambient noise; stratospheric ozone depletion; electromagnetic fields from power lines; health impacts from climate change; and exposure to hazardous substances in industrial, construction, and agricultural work environments. Results from workshops involving 73 stakeholders who met in five separate groups to rank these risks individually and collaboratively indicated strong consensus that outdoor and indoor air pollution are the highest priorities in the UAE. Each of the five groups rated these as being among the highest risks. All groups rated soil and groundwater contamination as being among the lowest risks. In surveys administered after the ranking exercises, participants indicated that the results of the process represented their concerns and approved of using the ranking results to inform policy decisions. The results ultimately shaped a strategic plan that is now being implemented.     

PVC管扩口定长系统的改进

介绍了一种新型的扩口定长系统,该系统利用光电开关、旋转编码器、计数器实现零件的定位,并利用计数器的原理将滚轮旋转信息转换为工作所要的计长仪信号,记录工程所需的长度.结果表明:该系统可以把误差由原来的几十毫米降低到±1毫米,有效地提高了成品的加工精度.     

尊重生命权利 注重生命价值——中国刑法关于杀人罪的立法缺陷及其完善

以完善刑事法制,充分发挥刑法保障人权的功能为研究目的,应用比较的方法,通过纵向和横向的立法比较,发现中国刑法中关于杀人罪的立法无论罪名、罪状、犯罪情节还是法定刑的设置都过于简单粗糙,与杀人罪在刑法中的重要位置极不相符。建议借鉴中国古代及当代世界各主要国家刑法典的经验,通过立法方式或者司法解释的方式建立杀人罪的罪名系列,或者根据犯罪情节设置三种不同的犯罪构成,细化杀人罪的构成要件、犯罪情节、法定刑和量刑情节,完善杀人罪的立法,将罪刑法定原则真正落到实处。     

浅谈“助学课堂”如何把握问题设置的度

助学课堂突出以"问"为主轴启动学生思维,以"思"为主攻促进学生发展,鼓励教师巧设关键问题、坡度问题,逐步激发学生学习的主动性和创造性,使学生由被动接受型转为主动发展型。教师在助学课堂教学中,要把握好问题设置的角度、难度、跨度、梯度、广度、密度等问题,才能有效地启迪学生思维,使学生的思维活动逐渐由已知导向未知,达到释疑、解惑的目的,实现知识的迁移和能力的飞跃。     

应收账款质押若干法律问题辨析

《物权法》将应收账款明确列入了可质押的权利的范围，中国人民银行制定的《应收账款质押登记办法》也于物权法之后出台，但需要进一步澄清与之相关的更为复杂的问题。应收账款质押属于权利质押的范围，与普通债权质押有联系也有区别，其设定须满足签订书面合同、通知第三债务人、交付应收账款债权证书等条件。应收账款质押债权的效力范围及于标的债权、利息以及附随的担保权，其对质权人和出质人均具有一定的效力。对于应收账款质押，需结合实践作更深入的探讨，以构建我国《担保法》完整的理论体系。     

陕西在西部大开发中应协调的八大关系

本文以省情作为研究问题的出发点，集中探讨了陕西在西部大开发中应注意协调的八大关系。     

中学物理考试的解题和命题

本文探讨物理考试的解题和命题的一般规律和操作方法，以寻求它们与能力的衔接所在。     

麻黄人工栽培试验研究

通过几年的连续试验，摸索出一套人工栽培麻黄的技术。麻黄虽然无性繁殖能力很强，但大面积栽培还应以种子繁殖为主，而育苗移栽优于大田直播，在野生资源日趋枯竭的情况下，必须走野生变人工栽培的路子。