上海市公用事业研究所体制改革探讨

回顾上海市公用事业研究所近年来体制改革概况,并对实施体改中存在的问题进行探讨。     

关于供水管网管理信息系统

简要描述地理信息系统的发展、定义和建立基于GIS的供水管理系统的必要性.对供水管网管理信息系统的数据模型、功能需求和开发方式进行了分析。     

A Caution on Comparisons

Abstract

The family is the foundation of our society. By learning about family life in other countries, we learn about our own lives and we realize that we all belong to one big family—the family of mankind. … [Studying families of the world] could help us to get closer to people in distant countries and support the knowledge that “we are one.” — Liv Ullmann, UNICEF Goodwill Ambassador     

Structural and Supportive Changes in Couples' Family and Friendship Networks Across the Transition to Parenthood

This article prospectively examined the patterns of change in couples' family and friend networks and supports across the transition to parenthood as well as stability in individual differences over time. Additionally, parental adjustment and depression were examined with respect to changes in couples' social systems. Participants included a total of 137 couples recruited prior to the birth of their first child from prenatal clinics in rural North Carolina. Couples were interviewed about their social networks and supports at four different time periods: prenatally and when target children were 3, 12, and 24 months of age. Couples also completed measures of depression and adjustment at each of the time periods. Across‐time correlations computed for the social network, support, and parental functioning variables revealed that there was considerable stability in the rank ordering of husbands and wives from the prenatal period through 24 months postpartum documenting continuity in parental networks in the context of change. However, growth curve analyses revealed dynamic changes in mothers' and fathers' social systems during this transition and that many of these changes were related to parental adjustment and depression. The discussion highlights the contribution of these data to understanding continuities and discontinuities in mothers' and fathers' social networks over time.     

Theoretical Comparisons of Forms of Exchange

A recent program comparing negotiated and reciprocal forms of social exchange offers important implications for theory development. Results of these investigations show that the form of exchange studied—negotiated or reciprocal—affects many of the processes and assumptions underlying contemporary theories of exchange. Three such effects are discussed here. First, the form of exchange affects the causal mechan– isms underlying power use and the relation between network structure and power. Second, whether exchange is negotiated or reciprocal affects the relative emphasis on learning or rational–choice models and the breadth of motivations assumed for "self–interested" actors, including reward maximization, loss avoidance, and reciprocity. Third, the form of exchange affects the salience of the cooperative and competitive "faces" of exchange, influencing actors' subjective xperiences with exchange. These results show the limitations of theories based on any single form of exchange and the need for greater understanding of the full range of exchange forms that characterize social life.     

The Networks That Fight Cyberterrorist Networks

This article analyzes how law enforcement agencies, cyber security labs (i.e., in universities), and other departments or organizations (i.e., the private sector and the U.S. military) create their own networks—and even join forces between one another—in their fight against cyberterrorists. By and large, cyberterrorism refers to electronic attacks against the Internet, information technologies, or other critical infrastructures. In order to engage in malicious activities against the Internet (as well as computer technologies, networks, and infrastructures), cyberterrorists create networks themselves. Hence, this idea of analyzing the social networks of two opposing sides rests on the premise that it takes networks to fight networks.     

Demographic Comparisons of Aging in Five Selected Countries

The worldwide aging of the population is having a major impact upon society. The United Nations General Assembly has declared 1999 to be the International Year of Older Persons to increase the awareness of aging worldwide. They identified five principles for older persons: independence, participation, care, self-fulfillment, and dignity. The numbers of elderly are growing around the world with many elderly living considerably longer than in past times. Developed countries are struggling with the high cost of maintaining support programs, and developing countries face dissolution of traditional care systems without institutional replacements. Women around the globe typically live longer than men, often without the economic resources to maintain independence. As nations adapt to their aging populations, a partnership among policy makers, family members, and older persons themselves is needed to offer alternatives to meet the needs of elders.     

Comparisons of sexual assault among older and younger women

This study examined the nature and extent of coercion, violence, and physical injury among older victims of sexual assaults (55 years and older) and compared these with the sexual assault victims of mid-age (31-54 years) and younger women (15-30 years). The results of this investigation reveal that older victims of sexual assault are more likely to be living alone at the time of the attack. In addition, older victims of sexual assault tended to report higher rates of vulnerabilities such as psychiatric and cognitive disabilities than did younger female victims. In contrast to younger victims, elder sexual assault victims are also more likely to be assaulted in their own home and one-quarter of older victims require ambulance involvement. Although the use of weapons was most likely in the sexual assaults of younger women, the use of physical violence and restraint was common and equally likely among all three groups. Similarly, vaginal penetration and the presence of physical trauma were just as likely in elder victims as in younger victims of sexual assault. These results reveal new information about the nature and extent of violence and coercion in elder female sexual assaults. The vulnerability of the older victims illustrated in this investigation raises a number of research questions about these women's prior history of victimization and future safety.     

Inappropriate Comparisons: The LGB Population's Missing Reference Group

ABSTRACT

Given that many professional organizations emphasize the need for comparing assessment results to appropriate reference groups in their codes of ethics, we consider this practice through an ecological perspective as it applies to the lesbian, gay, and bisexual (LGB) population. The purpose of norming and types of assessment bias is discussed with respect to LGB population, which frequently lack specific norming data. The authors discuss whether the LGB population has characteristics similar to other commonly normed for groups and explore how group-shared constructs such as minority stress and internalized homophobia may introduce bias and affect the validity of assessments. A social anxiety assessment as well as a personality disorder inventory are examined for bias as case examples explaining how these assessments may exhibit bias when used with the LGB population. Increases in validity and effects on treatment planning are discussed as benefits of providing LGB-specific norms. Risks of providing these norms, such as minimizing subgroup differences and possibly increasing the risk of discrimination are also addressed before providing clinicians with recommendations as to how they may minimize the risk of bias in their assessment process.     

Making connections: Global Production Networks and World City Networks

This article offers a sympathetic critique of recent attempts to forge a dialogue between Global Commodity Chain (GCC) and World City Network (WCN) approaches to global economic change. While broadly supportive of the endeavour, we make three observations about this ongoing project. First, we question the utility of emphasizing the common roots of these approaches in World Systems Theory given that both have subsequently moved into new epistemological terrain and, additionally, that the language of core and periphery seems ever less pertinent to global economic realities. Second, we seek to highlight the potential dangers of essentializing the global system as one that is primarily shaped by certain kinds of connections – namely the intra-firm relationships of advanced producer service firms – between certain kinds of cities – namely the leading tiers of global cities. Third, we point to the need to expand the interpretations of relationality within global networks to include a wider variety of actors, particularly beyond the corporate realm, and to explore the dynamic power relations between those actors. We also discuss the methodological challenges of expanding the purview of research in this way. This commentary has been stimulated by the articles in the special issue of Global Networks on 'World City Networks and Global Commodity Chains'.     

The Monetary Value of Voluntary Work: Conceptual and Empirical Comparisons

The purpose of this article is to provide a comprehensive comparison of different valuation approaches for estimating the monetary value of voluntary work both conceptually and empirically. This study adds to the literature by suggesting two approaches: (1) the leisure-adjusted opportunity cost approach (OCA), which corrects for voluntary work being a leisure substitute, is suggested as an alternative to the alternative-employment wage approach (AEWA). And (2) the volunteer judgment replacement wage approach (RWA), where volunteers state a wage rate that they consider adequate for the task they perform, is suggested as an alternative to the generic RWA. Using data on volunteers in German non-profit sports clubs (n = 566), the valuations show that the monetary value of 1 h of voluntary work is highest for the generic RWA (€14.27), followed by the AEWA (€14.03), the volunteer judgment RWA (€9.98), and the leisure-adjusted OCA (€1.78).

     

发达国家城市与北京环保比较研究

城市交通 西方主要大城市无一是以拓宽城市道路作为解决交通问题的主要对策的.北京的交通对策与西方城市有所不同.众所周知,北京市的城市交通发展采取的是外延式发展模式,俗称"摊大饼".这种方法的最大优点是城市交通规划可以层层推进,便于规划,城市交通发展速度较快.但也存在致命的缺陷,即这种发展模式难以触及边缘,极易造成城市规模的恶性膨胀,反而达不到治理交通污染的目的.     

Networks and collective action

This paper proposes a new measure for a group's ability to lead society to adopt their standard of behavior, which in particular takes account of the time the group takes to convince the whole society to adopt their position. This notion of a group's power to initiate action is computed as the reciprocal of the resistance against it, which is in turn given by the expected absorption time of a related finite state partial Markov chain that captures the social dynamics. The measure is applicable and meaningful in a variety of models where interaction between agents is formalized through (weighted) binary relations. Using Percolation Theory, it is shown that the group power is monotonic as a function of groups of agents. We also explain the differences between our measure and those discussed in the literature on Graph Theory, and illustrate all these concerns by a thorough analysis of two particular cases: the Wolfe Primate Data and the 11S hijackers’ network.     

Networks and outside options

We introduce and characterize a component efficient value for TU games with a cooperation structure which in contrast to the Myerson (Math Oper Res 2:225–229, 1977) value accounts for outside options. It is based on the idea that the distribution of the worth within a component should be consistent with some connected graph which reflects the outside options of the component’s players.