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41.
Green roofs are potentially valuable habitats for plants and animals in urban areas. Wild bees are important pollinators for crops and wild plants and may be enhanced by anthropogenic structures, but little is known about wild bees on green roofs in cities. This study investigates the effects of green roof qualities (floral resources, substrate character and depth, roof height and age) on wild bee diversity, abundance and traits (nesting type, sociality, pollen specialisation, body size) on green roofs in Vienna. Nine green roofs were sampled monthly between March and September 2014 by a semi quantitative approach. Wild bees were collected in pre-defined sub-areas for the same amount of time and floral resources were recorded. Over all green roofs, 992 individuals belonging to 90 wild bee species were observed. Wild bee diversity and abundance was strongly positively affected by increasing forage availability and fine substrates. Wild bees on roofs were characteristically solitary, polylectic and 8.3–11.2 mm. Regarding nesting type, the percentage of above-ground nesting bees was higher compared to the common species composition in Middle Europe. Ground-nesting wild bees were mainly eusocial, smaller (6.4–9.6 mm) and positively affected by roofs with fine substrates. During June, when forage availability by wildflowers on roofs was “low” (5–15% flower coverage), flowering Sedum species were an important forage resource. We conclude that wild bee diversity and abundance on green roofs are enhanced by floral resources. Furthermore, the installations of areas with finer and deeper substrates benefit ground nesting and eusocial wild bees.  相似文献   
42.
ABSTRACT

Home Futures, the major exhibition at the Design Museum, London, and IKEA Museum Sweden, explores the trajectory of radical domestic visions from the 1960s—but it seems that the future was closer in the 1960s than now.  相似文献   
43.
The authors – two anthropologists and an organisational theorist, all organisational ethnographers – discuss their understanding and practices of organisational ethnography (OE) as a way of imagining and reflect on how similar this understanding may be for young organisational researchers and students in particular. The discussion leads to the conclusion that OE may be regarded as a methodology but that it has a much greater potential when it is reclaiming its roots: to become a mode of doing social science on the meso-level. The discussion is based on an analysis of both historical material and the contemporary learning experiences of teaching OE as more than a method to our students.  相似文献   
44.
45.
eIFL.net is an umbrella organization of library consortia in fifty transition and developing countries. Its main purpose is to negotiate, encourage, and advocate for the wide availability of scholarly electronic information by library users from the education and research sectors, professional communities, governmental organizations, and civil society.The paper presents the beginnings, goals, and development of eIFL.net in its five years of existence. The authors outline what it has achieved so far and provide an overview of the main challenges that developing countries face in accessing quality e-resources. Some success stories will demonstrate concrete accomplishments of the organization and its participating countries.  相似文献   
46.
Drawing on research by the Research and Documentation Centre (WODC) of the Dutch Ministry of Security and Justice (Kromhout et al., 2010), this article describes how the Dutch government tried to protect Unaccompanied Minor Asylum Seekers (UMAs) who were (at risk of becoming) victims of human trafficking by implementing “Protected Reception”. It was concluded that the three objectives of this pilot programme were met to some extent: the influx of risk groups and the number of disappearances decreased, yet there was no (immediate) increase in return migration to the country of origin, after leaving Protected Reception. An important question that was raised was how far a state can go in protecting these vulnerable young people, by (partially) limiting their freedom of movement. It was concluded that placement and stay in Protected Reception had to be qualified as a deprivation of liberty for which Dutch legislation did not offer any ground.  相似文献   
47.
Jobseekers, especially young people with little experience on the job market, face several challenges. They need to know which jobs are suited for them, where to find them, how to apply, and they need resilience in the face of repeated rejections. Previous research has shown that receiving information and reflecting on how to search for a job enhance self-efficacy and search motivation, thereby reducing the duration of unemployment spells. Following up on these results, we conducted an experiment in cooperation with the Austrian Ministry of Social Affairs which combines an “information nudge” in the form of a short video-clip with what we call “reflection nudge” in the form of an online survey. We find that a treatment combining reflection and information reduces job search duration of young unemployed people with a low level of formal education. Considering the low costs of the intervention, efficiency is very high.  相似文献   
48.
Having a positive impact on other people's lives typically increases the likelihood of regarding one's work as meaningful. In some settings, however, employees have little or no contact to those who experience the impact of their work. Our paper examines how such distance affects these employees' construction of their work as meaningful. We present the findings of an in-depth case study of medical laboratory workers who do not typically interact with their patients. Drawing on interviews and observational data, we identify three sensemaking practices through which employees overcome the physical and perceived psychological distance to patients: assembling various pieces of information about the patient, sharing patient-related stories with colleagues, and relating themselves to patients and their medical problems. We also find that overcoming distance to patients can result in emotional stress, which is why some employees prefer staying at a ‘safe’ psychological distance. Our paper contributes to the meaningful work literature by examining how actors make work meaningful when they are physically distant from their object of work. We also contribute to a critical understanding of meaningful work by showing how efforts to render one's work more meaningful can intensify stress and emotional tension.  相似文献   
49.
This study examined childhood and adolescent risk factors for males' reports of getting someone pregnant during adolescence. These questions were examined in an urban sample of 335 African American males involved in a prospective, longitudinal study. Childhood aggression significantly predicted reported pregnancies during adolescence. Boys who were stably aggressive across 3rd through 5th grades were at particularly high risk for reporting getting a female pregnant. Adolescent substance use and deviant peer involvement incrementally added to the prediction of pregnancy reports over and above the effects of childhood aggression. Adolescent aggressive problems did not contribute to reports of pregnancy once childhood aggression was accounted for in the model. These results highlight that precursors for males' pregnancy reports can be identified by as early as age 8. Findings also emphasize the importance of an expanded developmental focus to understand risk factors for adolescent pregnancy. The implications of these results are discussed for preventive interventions to reduce adolescent pregnancy.  相似文献   
50.
In this article, I bring together literature from the fields of memory and reconciliation to investigate practices of ‘border crossing’ in post-war Bosnia and Herzegovina. While national divisions prevail, subtle attempts at border crossing can be witnessed even in those areas most impacted by the war’s partition, such as in Mostar, a city that has been left divided into Croat and Bosniak sides. Borders are physically crossed to reintegrate the ‘other side’ into one’s everyday life, but also in a more metonymical sense through the questioning of absolute national identities. Such acts of border crossing heavily rely on memories of positive pre-war cross-national relations, which are brought forward to re-establish these relations in post-war times. The research findings suggest that re-enacting a shared common ground – most often found in the past rather than in the present – bears an integrative potential that deserves more attention in post-conflict settings.  相似文献   
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