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991.
University campus is an important component of urban landscapes for biodiversity conservation. However, to our knowledge no study has quantitatively assessed the diversity and structure of bird communities in Chinese university campuses, especially from phylogenetic and functional perspectives. Here, for the first time we linked species richness, phylogenetic structure and body mass structure of campus bird communities with contemporary climate, glacial-interglacial climate change, altitudinal range, population density around campus, area and age of campus to test their associations. We found 393 bird species in 38 university campuses (29% of all Chinese bird species, two species are endangered, four species are vulnerable, and 33 species are near threatened). The variables significantly correlated with campus bird species richness, phylogenetic structure and body mass structure were altitudinal range and mean annual precipitation, glacial-interglacial anomaly in temperature, and altitudinal range, respectively. In particular, there were more species in steeper and wetter campuses, more young species clustered in campuses with stable glacial-interglacial climate, and more species with smaller body size in steeper campuses. Our study highlights the importance of considering both phylogenetic and functional information for biodiversity conservation in urban ecosystems. 相似文献
992.
993.
Malin Arvidson 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2018,29(5):898-910
Research on the relationship between non-profit organizations (NPOs) and the public sector has been dominated by predictions of isomorphism where change and tensions in NPOs are attributed an imposing institutional setting. This article argues that research represents a selective perspective on organizational life due to its portrayal of organizational change as synonymous with an isomorphic, linear trajectory. The purpose of this article is to illustrate different sources and characteristics of change and tension. The article presents an analytical framework comprising of four components: evolving change, episodic change, inherent dilemmas, and conflicting logics, facilitating an understanding of the organization as movement. The analysis of a case study organization suggests that by identifying different dimensions of changes and tensions we can gain a richer understanding of the complexity of processes underpinning the organization as movement. The analysis reveals how multiple, parallel processes related to change and tensions generate reflections that drive integrity and identity formation at individual and organizational levels. 相似文献
994.
Eva K. Andersson Bo Malmberg Rafael Costa Bart Sleutjes Marcin Jan Stonawski Helga A. G. de Valk 《Revue europeenne de demographie》2018,34(2):251-275
In this paper, we use geo-coded, individual-level register data on four European countries to compute comparative measures of segregation that are independent of existing geographical sub-divisions. The focus is on non-European migrants, for whom aggregates of egocentric neighbourhoods (with different population counts) are used to assess small-scale, medium-scale, and large-scale segregation patterns. At the smallest scale level, corresponding to neighbourhoods with 200 persons, patterns of over- and under-representation are strikingly similar. At larger-scale levels, Belgium stands out as having relatively strong over- and under-representation. More than 55% of the Belgian population lives in large-scale neighbourhoods with moderate under- or over-representation of non-European migrants. In the other countries, the corresponding figures are between 30 and 40%. Possible explanations for the variation across countries are differences in housing policies and refugee placement policies. Sweden has the largest and Denmark the smallest non-European migrant population, in relative terms. Thus, in both migrant-dense and native-born-dense areas, Swedish neighbourhoods have a higher concentration and Denmark a lower concentration of non-European migrants than the other countries. For large-scale, migrant-dense neighbourhoods, however, levels of concentration are similar in Belgium, the Netherlands, and Sweden. Thus, to the extent that such concentrations contribute to spatial inequalities, these countries are facing similar policy challenges. 相似文献
995.
While the association between financial strain and couple interaction has been well-established in the literature on economic stress, little research has investigated the association among middle-aged and older populations. The present study examined the relationships between financial strain and couple functioning of middle-aged, young-old, and old–old people using the 2010 Health and Retirement Study. Findings show that subjective financial strain was positively associated with partner undermining and negatively with partner support, controlling for the effects of objective financial situations among middle-aged, young-old, and old–old couples. There were gender and age differences in the interaction effects of financial strain and financial control on couple functioning. For middle-aged men, financial control may have different associations with couple behaviors depending on the level of financial strain. When the level of financial strain is high, the positive effect of financial control disappears and the effect changes even in a negative way. Findings provide suggestions for practitioners and researchers. 相似文献
996.
Virpi Lund Soile Juujärvi 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2018,29(4):756-769
In this case study, we aimed to investigate residents’ agency through their participation in the development of their residential area in the city of Espoo, Finland. With the aid of seven themes, we identified by thematic analysis five types of residents in terms of agency: free floaters, home troops and helpers, representative information brokers, informed reviewers, and change agents. Relational agency, rooted from the cultural-historical activity theory, necessitated recognizing the available resources, understanding the motives of others, and collaborating in joint activities. The results of 30 interviews showed that residents are willing to participate, and they need space and structure to exploit their relational agency in order to build common interests in their neighbourhood. The findings are discussed with reference to the potential of residents’ agency while participating in neighbourhood governance and volunteering. Our study contributes to the understanding of residents’ relational agency in community development and in volunteering. 相似文献
997.
Benjamin J. Lough Rebecca Tiessen 《Voluntas: International Journal of Voluntary and Nonprofit Organizations》2018,29(1):104-118
This study examines how different types of international volunteering influence common program outcomes such as building organizational capacity, developing international relationships, and performing manual labor. Survey responses were collected from 288 development-oriented volunteer partner organizations operating in 68 countries. Data on the duration of volunteer service, the volunteers’ skill levels, and other variables were used to develop a rough typology of international volunteering. Binary logistic regression models then assessed differences in outcomes across five volunteering types. Findings suggest that future research needs to be more precise about how the nuances and complexity of diverse forms of international volunteering influence outcomes. 相似文献
998.
David Simpson Liza Suarez Lauren Cox Sucheta Connolly 《Child and Adolescent Social Work Journal》2018,35(4):407-421
The current study examined the moderating role of coping strategies on psychological outcomes at varying levels of parental support in a sample of clinically anxious youth. Youth (N?=?174, mean age 11.89) completed the Children’s Coping Strategies Checklist, Child and Adolescent Social Support Scale, Multidimensional Anxiety Scale for Children and Children’s Depression Inventory. Data was gathered at a large, university-based anxiety disorders treatment clinic. This nonexperimental design analyzed the use of active and avoidant coping strategies as a moderator of anxiety and depression, while controlling for parental support. Results revealed active coping strategies did moderate the relationship between parental support and anxiety, however, not as expected while the significant moderation role of avoidance coping was mixed. Findings showed that anxious youth with more parental support and more active coping were at risk for higher levels of anxiety, yet protected from higher depression. Avoidant coping strategies did moderate in a manner that was predicted for higher anxiety symptoms. Results suggest increased need for parental involvement in the treatment of anxiety disorders in youth. 相似文献
999.
The field of sociology has long been subject to critique for alleged ideological bias and left-wing groupthink linked to its social justice mission. Critics contend that the construction of “sacred victims” by progressive intellectuals hinders their ability to objectively appraise the circumstances of such vulnerable groups. To address this criticism, we survey 479 sociologists in national universities and colleges in the U.S. regarding three sensitive controversies: urban poverty in the black community; gendered differences in occupational choices; and immigration. We find significant patterns in the data. Commitment to the field’s “moral mission,” preferred research paradigm, gender, and especially political orientation are all significant predictors of sociologists’ views. The results, we suggest, can be understood by conceptualizing the field of sociology as an “emotive community.” In doing so, we draw upon current social psychological research on moral foundations theory developed by Jonathan Haidt and colleagues. 相似文献
1000.
The overall purpose of this study was to examine the degree to which retirement is a contextually embedded, family decision rather than an individualized, male-centric one. Using data from a 2010 survey of married pre-retirees ages 35–70 in Michigan, US, we created a General Linear Model to predict expected retirement age. The model incorporated the effect of spousal and family variables on expected retirement age, and because the work/family interface is highly gendered, we explored interactions with gender. The study used a life course perspective in its framing and analysis, and found that expected retirement age was related to both personal and family characteristics and that the relationship of spousal and family factors were gendered and complex. 相似文献