Drivers of biodiversity patterns in parks of a growing South American megacity

How urban habitats contribute to biodiversity conservation is a key challenge in a rapidly urbanising world. Urban parks can provide important habitats for native species, but previous studies are geographically biased; fast growing megacities, in particular in South America, are clearly understudied. To assess habitat functions and underlying drivers in parks of Santiago de Chile, we analysed the assemblages of wild growing plant species in two ubiquitous park habitat types (grasslands, wooded areas) in 15 parks (150 plots) along an urban-rural gradient. We first used linear contrasts to compare species richness, beta diversity and the proportion of introduced species. We then tested for the explanatory value of environmental variables operating at different spatial scales (plot, park, urban matrix). Unlike in most previous studies, biodiversity patterns were not related to the position of the parks on the urban-rural gradient. Introduced species, mostly from Europe, generally dominated both habitat types (>90 %). Socio-economic (population growth or density), but not spatial, variables were retained in most models. Maintenance intensity was most influential in predicting species assemblages, complemented by park age in wooded areas. A high proportion of European grassland species indicates a trend of homogenisation in park grassland at a cross-continental scale. We conclude that habitat functions of urban parks for native species that have been mainly demonstrated for Europe cannot be generalised to South American megacities. This highlights the need for innovative and locally appropriate conservation approaches (e.g., re-introduction of native species) to foster biodiversity functions in urban parks of South American megacities.     

The contribution of network research to managerial culture and practice

Although research on social networks has gained significant influence in the academic world, several factors seem to have lowered its echo in the business world. It is still unclear how this fast-growing stream of research has translated into solid implications for managerial action and decision making. Based on a review of recent research, this paper attempts to provide evidence that network research does have practical relevance. We focus on five areas where network research has introduced new angles and renewed the understanding of how organizations should tackle management issues. We also suggest directions for future research, with the same objective of placing the emphasis on strengthening the contribution of the approach to management practices.     

Media Exposure and Health in Europe: Mediators and Moderators of Media Systems

This study examined media exposure as an explanatory factor for individual and cross-national differences in self-assessed general health. In studying media exposure, traditional media (television, radio, and newspapers) and contemporary media (internet) were separately considered. Aside from hypotheses about the relation between media exposure and general health, we also tested hypotheses regarding the mediating role of social isolation and mean world syndrome as well as the moderating role of different media systems across countries. Therefore, we used European Social Survey 2010, covering 25 European countries (n = 36,692). The results of our multilevel regression analyses indicated that exposure to television was negatively related to general health, whereas exposure to radio and newspapers were positively related to health. For contemporary media, findings indicated consistent positive relations between internet exposure and health across. Furthermore, limited support was found for the mediating role of social isolation and the mean world syndrome in the link between media exposure and health. Across media systems, findings for the relations between exposure to the various types of media and health proved to be robust.     

Expectations of inflation: The biasing effect of thoughts about specific prices

National surveys follow consumers’ expectations of future inflation, because these may directly affect the economic choices they make, indirectly affect macro-economic outcomes, and are considered in monetary policy. Yet, relatively little is known about how individuals form the inflation expectations they report on consumer surveys. Medians of reported inflation expectations tend to track official estimates of realized inflation, but show large heterogeneity between respondents, due to some expecting seemingly extreme inflation. We present two studies to examine whether individuals who consider specific price changes when forming their inflation expectations report more extreme and disagreeing inflation expectations due to focusing on specific extreme price changes. In Study 1, participants who were instructed to recall any price changes or to recall the largest price changes both thought of items for which price changes were perceived to have been extreme. Moreover, they reported more extreme year-ahead inflation expectations and showed more disagreement than did a third group that had been asked to recall the average change in price changes. Study 2 asked participants to report their year-ahead expectations of inflation, without first prompting them to recall specific price changes. Half of participants nevertheless thought of specific prices when generating their inflation expectations. Those who thought of specific prices reported more extreme and more disagreeing inflation expectations, because they were biased towards various items associated with more extreme perceived price changes. Our findings provide new insights into expectation formation processes and have implications for the design of survey-based measures of inflation.     

The role of crisis in family crisis intervention: Do crisis experience and crisis change matter?

Evaluation studies of crisis intervention have focused on prevention of out-of-home placement of children or family functioning, but largely neglected the aspect of crisis. The present study examined crisis in 183 families receiving Family Crisis Intervention (FCI), addressing crisis characteristics and crisis change. In questionnaires children and parents were asked about their definition and experience of crisis and about their need for help. Results show that all families but one were in crisis at the beginning of the intervention, although the perception and extent of crisis differed among respondents. Crisis decreased from baseline to posttest according to clients and crisis intervention workers, but was not absent after the intervention. Combined with an unexpected pattern of reported family balance in the months before FCI, this result challenges the 4-6 weeks time span assumption of a crisis period. Variations in perception of crisis, clients' need for help, and possible crisis patterns are discussed, addressing theoretical and practical implications for family crisis intervention.     

文化经济论述下的台湾电影产业样态及其发展趋向辨析

近期台湾几部指标性之大众市场效应电影如《海角七号》(2008)、《艋舺》(2010)等,全面带动观众支持台湾电影的风潮,形成台湾电影复苏的新样貌。通过运用数据指针可以概括描绘台湾电影市场的供给现状,观察当前台湾电影制作与美商发行体系的链结、金融资本挹注与跨界合拍电影的实践样态,从而阐明近十年来台湾电影产值结构的变化,如何牵动了制作、发行、映演等产业炼的发展。台湾电影产业的再次起飞,实际上并不脱离近期全球重视文化经济的潮流。艺术与产业之间存在着结构性难题,台湾电影产业虽然由隐然其后的一股文化经济论述力量所主导,但是电影作为一项文化商品,其经济价值乃建立在文化价值之上。台湾电影固有人文价值与美学思辨的迫切与重要性,将成为台湾电影产业前景及新趋向发展中必须面对的课题。     

First initiatives for social integration of the mentally ill in one phase of pre-deinstitutionalization. The example of Saint-Jean-de-Dieu, 1910-1950

This article on the first initiatives of social integration of the mentally ill, using the example of the H?pital St-Jean-de-Dieu, explores the implementation of a period of deinstitutionalization in the early decades of the 20th century. Our study is situated in the recent historiography that offers a rereading of the period just prior to the Quiet Revolution in Quebec. We intend to contribute by demonstrating that the policies, strategies and practices of the Sisters of Providence and the psychiatrists of St-Jean-de-Dieu developed a system of deinstitutionalization that reintegrated patients into their family as early as the 1910s, half a century before the first wave of deinstitutionalization of the 1960s was orchestrated by the authors of the Bédard report.     

Variables Associated with Resilience in Divorced Families

The present study focuses on the salutogenicproperties of post-divorce families andattempts to identify factors that promoteresilience and family well-being. Within thesalutogenic paradigm the focus is on positivecharacteristics and strengths that contributetowards the growth and development of a system.Family coherence is used as an indication ofthe level of recovery after the crisis, and isused as the dependent measure with regard tothe present well-being of the family. Across-sectional survey research design wasused. The 98 participating families wereidentified on the grounds of the nature of thecrisis (divorce) and the developmental phase ofthe family. An open-ended question and thefollowing self-report questionnaires werecompleted by the parent and a child: abiographical questionnaire, the Relative andFriend Support Index, the Social Support Index,Family Crises Oriented Personal EvaluationScales, Family Sense of Coherence Scale, andthe Family Hardiness Index. Results show thatintra-family support, support of the extendedfamily, support of friends, religion, opencommunication amongst family members, and workand financial security were factors promotingresilience in these families.