芬兰试用LPG汽车

早在1988年芬兰便着手测试低排放的LPG载重汽车发动机。1990年建成了总质量可达17t的SISU牌LPG载重汽车的第一辆样车,测定结果令人满意。文中介绍芬兰试用LPG汽车的概况、MAN牌LPG公共汽车及SISU牌LPG载重汽车的试用情况及其成功经验。     

LPG汽车技术发展与安全系统

介绍了液化石油气(LPG)汽车的加装部件、安全系统及三代产品(机械式燃料供给系统、电控LPG燃料混合系统、电控LPG喷射系统)的技术发展。     

液化石油气汽车加气站的安全问题

介绍LPG汽车加气站的形式和其设计规范的探讨。     

丹麦的LPG灌装设备

介绍丹麦克里斯普兰特公司概况,其LPG灌装设备和采用的条码技术。     

香港道路隧道试通LPG出租车计划

自1997年11月底起,香港已有30辆LPG出租车上街行驶。     

上海LPG汽车的发展与展望

该文介绍上海LPG汽车的试验研究和发展情况并展望今后发展方向。     

出席世界液化石油气论坛大会随想

介绍第十届世界液化石油气论坛大会、公司的体改和上海发展LPG汽车简况。     

液化石油气站事故的预防措施

液化石油气(LPG)站的事故预防是时刻不容忽视的大事。该文在实现液化石油气站的安全生产、事故原因的分析以及事故预防方面都进行了比较详细的介绍。     

LPG的自然气化与空温式气化器

重点阐述了自然气化与空温式气化器的工作原理,并且就LPG组成、环境温度、使用持续时间等因素对产气能力的影响作了具体分析。目的是为了使各使用单位能正确选择和使用空温式气化器。     

上海市汽油助动车4年内全改用LPG

<正> 上海市现有汽油助动车35万辆,4年内将全部改用LPG。这项工作今年已正式开始,凡持有2001年和1999年换发号牌的燃油助动车车主均可替代上牌。此次替代上牌的车辆为“永久”牌TR2000P型、TR2001P型和TR2002P型燃气助动车。据了解,鉴于此次替代工作是加快淘汰污     

Back and Forth and Beyond

The Journal invited Tom Andersen, author of major pioneering work on the reflecting team, and his colleagues, to offer comment on The Reflecting Team Process in Training. We thought such a north-south dialogue was in keeping with the spirit of reflecting teams, and the team members in Melbourne and Tromsø agree — Editor.     

Time and aging--mechanisms and meanings

A recent European Molecular Biology Laboratory Conference on Science and Society entitled "Time & Aging--Mechanisms & Meanings" fascinated scientists from different research areas as well as nonscientists. Topics discussed included not only the biological aging process but also the psychological effects of aging and social influences that affect this process.     

Arts and Crafts and Reconstruction

Abstract

This paper examines the role of arts and crafts in reconstructing communities after times of upheaval, their use in creating employment opportunities, and their impact on the nature of South African art history. It looks at craft initiatives during and after the Johannesburg World Summit on Sustainable Development in 2002, and draws parallels with early twentieth-century initiatives, particularly those of Florence Phillips, who founded the Johannesburg Art Gallery in 1910, Emily Hobhouse, who established Boer home industries, and the South African National Union, which promoted the manufacture and use of local products.     

Sexual Compulsivity and Sexual Behaviors Among Gay and Bisexual Men and Lesbian and Bisexual Women

Within the existing body of research, the information pertaining to sexual compulsivity (SC) among women, both homo- and heterosexual, remains rather limited in comparison to men. The aim of this study was to assess the prevalence of SC in a community sample of gay and bisexual men and lesbian and bisexual women and to identify differences in sexual practices based on classification as sexually compulsive within gender. Supporting previous research, the findings indicated that gay and bisexual men were significantly higher in SC when compared to lesbian and bisexual women. Similarly, sexually compulsive gay and bisexual men were more likely to report drug use with sex than their non-sexually compulsive peers, suggesting that “party n' play” may play a larger role for men with SC. In addition, the findings demonstrated empirical support for the proposition that lesbian and bisexual women with symptoms of SC were more likely to engage in specialized sexual behaviors in comparison to their non-sexually compulsive peers. These data suggest that SC manifests differently in gay, lesbian, and bisexual men and women.     

Evening and night work schedules and children's social and emotional well-being

ABSTRACT

An emerging body of evidence shows that parents’ non-standard work schedules have a detrimental effect on children's well-being. However, only a limited number of studies have investigated mediating factors that underpin this association. Likewise, only a few studies have examined the impact of fathers’ non-standard work schedules on children's well-being. Based on data from the Families in Germany Study (FiD), this study aimed to address these research gaps. The sample consists of parents and their children at ages 7–8 and 9–10 (n?=?838 child observations in dual-earner families). The data were collected in the years 2010–2013. Non-standard work hours were defined as working in evenings and or at night (every day, several times a week, or changing as shifts). Children's social and emotional well-being was measured with the Strengths and Difficulties Questionnaire (SDQ). The findings show that both mothers’ and fathers’ evening and night work schedules are linked to an increase in children's externalizing and internalizing behavior and that this association is partially mediated by mothers’ and fathers’ harsh and strict parenting, with a stronger mediation effect for fathers parenting.     

Thinking and Speech and Protocol Analysis

Some form of verbal report—that is, a research participant' s concurrent or retrospective verbal account of thought processes during problem-solving activities—has been used throughout this century as the database from which psychologists have developed theories of human mentation. Newell and Simon (1972) and Ericsson and Simon (1980, 1993) have provided extensive justification for using one such method, protocol analysis, as a tool for investigating cognition from an information-processing (IP) perspective. Their arguments have characterized protocol analysis as a methodology capable of providing evidence of the ways in which people attend to information stored in short-term memory to solve problems, with the evidence providing them with the grounds from which to generate models of human cognitive processes. A different view of protocol analysis is available from the perspective of cultural-historical activity theory (CHAT) based on the work of Vygotsky (1987), Leont'ev (1981), and others, and its concern with the mediation of human development by culturally and historically grounded signs and tools. Because of its emphasis on culturally channeled development, a CHAT perspective views speech, including the speech that serves as evidence for cognition in psychological research, as a tool that potentially enables changes in consciousness. In this article I outline a CHAT perspective that accounts for protocol analysis along three key dimensions: (a) the relation between thinking and speech from a representational standpoint, (b) the social role of speech in research methodology, and (c) the influence of speech on thinking during data collection. The purpose of this discussion is not to refute the IP perspective on protocol analysis but to illustrate how this method can be viewed through a CHAT lens and to identify alternative assumptions that must be made to use it from a CHAT perspective.