莱州重视保护地下管线

<正> 城市地下管线是城市的“血管”和“神经”,在城市生活和防灾、救灾等方面发挥着重要的作用,但因长期埋在地下而常常被忽视,造成不必要的损失和浪费。最近,市政府发布了《莱州市地下管线工程档案管理     

松原综合管廊建设研究

近年来,综合管廊建设飞速发展,有效解决了城市道路反复开挖、地下空间肆意浪费及市政管线损毁事故频发等问题,建设综合管廊是保障地下管线安全运行、提升城市整体环境、实现城市基础设施功能集聚以及创造和谐城市生态环境的有效途径.笔者结合综合管廊建设中的常见问题,从入廊管线分析、管廊方案分析以及节点设计等方面进行研究,以松原综合管廊建设实例进行具体分析,以期为城市合理建设综合管廊提供参考.     

城市地下燃气管道的阴极保护

介绍国内外城市地下燃气管线实施阴极保护的现状、经验、问题;提出地下燃气管线实施涂层加阴极保护。     

谈城市地下管线的保护

目前,施工中损坏城市地下管线的现象比较严重,必须采取措施予以控制。该文 分析了城市地下管线损坏的原因,提出了保护措施。     

高层建筑深基坑施工技术和管理应用分析

随着我国城市经济的迅猛发展,建筑行业也迎来了全新发展机遇,科技不断进步,城市空间大量向高空和地下发展,楼层越建越高,地下越建越深.在建筑施工中,深基坑工程常处于密集的既有建筑物、道路桥梁、地下管线、地铁隧道或人防工程附近,施工过程中必须要控制好技术的应用,确保基坑、周边建筑物、道路桥梁和各种地下设施的安全,避免造成巨大损失.笔者结合获得广东省金匠奖和优质奖的某商务大厦建设情况,简要分析高层建筑深基坑施工技术和应用管理.     

城市地下综合管廊开发模式创新探讨

随着顶层设计的完成,城市地下综合管廊建设进入到大规模开发时代。早期的综合管廊开发主要由政府全资完成,并将廊体建设与管线敷设分别实施,开发绩效不高。PPP+EPCO模式具备"公私合作+全生命周期管理"的特征,在项目的开发过程中,兼顾公平和效益,又实现集成管理的高效率。随着鼓励政策的出台,PPP+EPCO试点项目逐步落地,亟须在制度建设、融资设计、社会资本培育等方面扫清障碍。本文从全生命周期协同、融资模式创新、产业链整合等角度,提出了完善PPP+EPCO模式开发城市地下综合管廊的建议。     

天津城市地下道路功能定位研究

一、引言 随着城市化和机动化水平的提高,天津的城市交通问题日趋严重.虽然近年天津大力建设地铁及快速路系统,但随着城市扩张及经济增长速度加快,居民出行需求日益增加,地面道路交通状况依然严峻.纵观国内外交通系统较成熟的大都市区,地下道路作为新的道路规划、建设形式已经成为缓解城市交通问题的重要手段.在大规模进行城市建设阶段,做好地下道路空间规划,为地下道路建设控制预留条件,对于天津城市可持续发展有着重要意义.     

城市建设应重视地下空间开发与利用

建国以来,我国在地下空间的开发与利用方面已经取得了一定的成就,主要是结合国防、人防,城建、交通、环保、水力资源的开发,以及节能、贮能等方面的建设,开发和利用了数量可观的地下空间资源。利用开发地下空间是城市建设的一个重要方面,也是城市建设研究探索的重要课     

关于城市地下空间信息管理的探讨

城市地下空间是城市的重要组成部分．随着我国城市化水平的不断提高，城市空间拥挤、交通堵塞、环境恶化、资源匮乏等问题逐渐突出．城市地下空间的开发利用已成为增加城市功能、改善城市环境的必要手段。近年来，随着地铁等大规模地下工程在全国各大城市广泛开展．城市地下空间管理逐渐成为城市规划管理的重要内容，加强地下空间资源管理．建立地下空间信息数据库．实现地下空间信息化管理．成为许多城市规划管理建设的重要课题和工作目标。     

下水道也是上层建筑

面对一个年轻的生命被下水道吞噬,引发的"拷问"是多方面的。然而,这不纯粹是设计技术上的问题。如果把城市发展的面貌看作一个生命的整体,其展示在地面上的美丽容颜,一定是与地下的五脏六腑相辅相成的。否则,只能算作一件没有根基的摆设。而当有能力让地面上的高楼大厦显现着高大雄壮的身姿时,就有理由认为,在同样的财力和技术下,地下一定也配套了维系整个城市繁华的"血管"。这几乎已经与技术能力无关。因此,地下管网建设拷问的是城市发展的良心。下水道是城市的智慧和良心。150年前,雨果说过这样一句话:"在城     

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.