| 1. |
- Abazov, V. M., et al.
(author)
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The upgraded DO detector
- 2006
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In: Nuclear Instruments and Methods in Physics Research Section A. - : Elsevier BV. - 0168-9002 .- 1872-9576. ; 565:2, s. 463-537
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Journal article (peer-reviewed)abstract
- The DO experiment enjoyed a very successful data-collection run at the Fermilab Tevatron collider between 1992 and 1996. Since then, the detector has been upgraded to take advantage of improvements to the Tevatron and to enhance its physics capabilities. We describe the new elements of the detector, including the silicon microstrip tracker, central fiber tracker, solenoidal magnet, preshower detectors, forward muon detector, and forward proton detector. The uranium/liquid -argon calorimeters and central muon detector, remaining from Run 1, are discussed briefly. We also present the associated electronics, triggering, and data acquisition systems, along with the design and implementation of software specific to DO.
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| 2. |
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| 3. |
- Barker, Dean, 1977, et al.
(author)
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Swiss youths, migration and integrative sport: A critical constructive reading of popular discourse
- 2013
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In: European Journal of Sport Sociology. - : Routledge. - 1613-8171 .- 2380-5919. ; 10:2, s. 143-160
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Journal article (peer-reviewed)abstract
- This paper critically interrogates widespread assumptions pertaining to the integrative function of sporting involvement in Switzerland. It focuses specifically on young people living in a culturally diverse area and how they make use of discursive variations of the integrative sport text. Interview material draws attention to four main sub-texts that frame sport as: a pedagogical tool, a site of interpersonal exchange, a method of catharsis, and as an apolitical activity without relevance to ethnicity. It is argued that these sub-texts: (1) are embedded within broader culturalist discourse and, (2) either support divisive social relations or do little to challenge them. Both instances suggest that changes are necessary to the way sport is ‘produced’ in discourse if it is to positively influence ethnic relations.
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| 4. |
- Barker, Dean, 1977, et al.
(author)
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Youths with migration backgrounds and their experiences of physical education: an examination of three cases
- 2014
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In: Sport, Education and Society. - : Informa UK Limited. - 1357-3322 .- 1470-1243. ; 19:2, s. 186-203
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Journal article (peer-reviewed)abstract
- While understanding young people has never been easy, migration trends make it increasingly difficult. Many classrooms have become culturally heterogeneous and teachers are often faced with pupils with diverse linguistic and cultural heritages. Current scholarship suggests that as a discipline, physical education has not adapted to this diversity. In fact, commentators have suggested that physical education alienates pupils from minority groups and that traditional practices work to maintain cultural difference. The broad objective of this paper is to provide insights into how physical education intersects with biographies shaped by migration. Drawing from a case study investigation, this paper presents interview data from three youths with migration backgrounds living in a German-speaking region of Switzerland. The cases were selected because they highlight various ways in which physical education (PE) comes to make sense for adolescents. The key arguments that we develop are that ethnicity often works at an implicit level in PE, that young people experience the effects of migration backgrounds in diverse ways, and that migrants themselves support official educational discourses that work to disadvantage people with migration backgrounds. A key implication is that in a cultural milieu in which generalisations are normal and sometimes considered desirable, both researchers and practitioners need to be wary of racialising discourses. As an alternative, it is suggested that focusing on individual processes can improve the conceptualisation and implementation of physical education pedagogies.
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| 5. |
- Barker-Ruchti, Natalie, 1971-, et al.
(author)
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Second Generation Immigrant Girls’ Negotiations of Cultural Proximity in Switzerland : A Foucauldian Reading
- 2015
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In: Journal of International Migration and Integration. - : Springer. - 1488-3473 .- 1874-6365. ; 16:4, s. 1213-1229
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Journal article (peer-reviewed)abstract
- Although overtly racist political discourse in Switzerland has receded, culturalist discourses continue to construct ideal immigrants. Policies define immigrants in terms of “cultural proximity” and contain an implicit distinction between “distant” and “proximal” foreigners. Culturally, distant immigrants have been stereotyped as aggressive and/or lacking interest in education and professional success and while scholars have examined immigrants from Switzerland’s “culturally-near” regions, the experiences of second generation immigrant populations from perceived culturally distant countries have largely escaped attention. Knowledge about girls and women is particularly scarce. Against this backdrop, this paper provides an examination of how six teenage girls living in a German-speaking Swiss city negotiate their perceived cultural distance. By combining interview material with elements of Foucauldian theory, the paper provides insight into (1) the diasporic experiences of girls with second generation immigration backgrounds and (2) the operation and influence of culturalist discourses. Foucault’s notion of dispositive—the discourses, institutions, laws, and scientific findings that, through various means of distribution (e.g., media texts, policies, education curricula), act as an apparatus that constructs and supports normative ideals—provides a generative analytic tool for this task. The analysis suggests that the ways girls learn to understand their social worlds is a collective process of discipline that places mechanisms of social control within each individual. This process involves the homogenisation and marginalisation of the immigrant population and is circular in nature in that the girls strengthen and maintain the power of existing culturalist knowledge that works negatively on them. The paper concludes with a consideration of how this situation might be challenged.
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| 6. |
- Barker-Ruchti, Natalie, 1971-, et al.
(author)
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Sport-'It's Just Healthy' : Locating Healthism within Discourses of Social Integration
- 2013
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In: Journal of ethnic and migration studies. - : Routledge. - 1369-183X .- 1469-9451. ; 39:5, s. 759-772
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Journal article (peer-reviewed)abstract
- Immigration discourses in Switzerland have developed out of a fear of 'over-foreignisation'. Central to this development are discourses of difference in which Swiss culture is centred and foreign ones are marginalised. At present, Eastern and South-East European cultures are particularly affected. In this article, we challenge perceived cultural incommensurability by examining the socialisation of second-generation girls of immigrant background, through data generated from semi-structured interviews with them. The girls draw on a tightly defined discursive range of linguistic resources to construct the meanings of sport, health and the body. Specifically, the girls refer to healthism, within which sport is seen to provide a means to achieve good health and a slim and feminine body. These references reflect a set of knowledge and discourses important to Western cultures. Alternative discursive resources exist, yet were not utilised. We argue that the girls' adoption of healthist ideas is used to counter cultural narratives-such as the uncultured, and thus non-integrated, immigrant-and that this adoption supports and maintains white healthist ideas, 'othering' the (foreign) other.
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| 7. |
- Borén, Eleonora, 1985-
(author)
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Off-gassing from thermally treated lignocellulosic biomass
- 2017
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Doctoral thesis (other academic/artistic)abstract
- Off-gassing of hazardous compounds is, together with self-heating and dust explosions, the main safety hazards within large-scale biomass storage and handling. Formation of CO, CO2, and VOCs with concurrent O2 depletion can occur to hazardous levels in enclosed stored forest products. Several incidents of CO poisoning and suffocation of oxygen depletion have resulted in fatalities and injuries during cargo vessel discharge of forest products and in conjunction with wood pellet storage rooms and silos. Technologies for torrefaction and steam explosion for thermal treatment of biomass are under development and approaching commercialization, but their off-gassing behavior is essentially unknown.The overall objective of this thesis was to provide answers to one main question: “What is the off-gassing behaviour of thermally treated lignocellulosic biomass during storage?”. This was achieved by experimental studies and detailed analysis of off-gassing compounds sampled under realistic conditions, with special emphasis on the VOCs.Presented results show that off-gassing behavior is influenced by numerous factors, in the following ways. CO, CO2 and CH4 off-gassing levels from torrefied and stream-exploded biomass and pellets, and accompanying O2 depletion, are comparable to or lower than corresponding from untreated biomass. The treatments also cause major compositional shifts in VOCs; emissions of terpenes and native aldehydes decline, but levels of volatile cell wall degradation products (notably furans and aromatics) increase. The severity of the thermal treatment is also important; increases in torrefaction severity increase CO off-gassing from torrefied pine to levels comparable to emissions from conventional pellets, and increase O2 depletion for both torrefied chips and pellets. Both treatment temperature and duration also influence degradation rates and VOC composition. The product cooling technique is influential too; water spraying in addition to heat exchange increased CO2 and VOCs off-gassing from torrefied pine chips, as well as O2 depletion. Moreover, the composition of emitted gases co-varied with pellets’ moisture content; pellets of more severely treated material retained less moisture, regardless of their pre-conditioning moisture content. However, no co-variance was found between off-gassing and pelletization settings, the resulting pellet quality, or storage time of torrefied chips before pelletization. Pelletization of steam-exploded bark increased subsequent VOC off-gassing, and induced compositional shifts relative to emissions from unpelletized steam-exploded material. In addition, CO, CO2 and CH4 off-gassing, and O2 depletion, were positively correlated with the storage temperature of torrefied softwood. Similarly, CO and CH4 emissions from steam-exploded softwood increased with increases in storage temperature, and VOC off-gassing from both torrefied and steam-exploded softwood was more affected by storage temperature than by treatment severity. Levels of CO, CO2 and CH4 increased, while levels of O2 and most VOCs decreased, during storage of both torrefied and steam-exploded softwood.CO, CO2 and O2 levels were more affected by storage time than by treatment severity. Levels of VOCs were not significantly decreased or altered by nitrogen purging of storage spaces of steam-exploded or torrefied softwood, or controlled headspace gas exchange (intermittent ventilation) during storage of steam-exploded bark.In conclusion, rates of off-gassing of CO and CO2 from thermally treated biomass, and associated O2 depletion, are comparable to or lower than corresponding rates for untreated biomass. Thermal treatment induces shifts in both concentrations and profiles of VOCs. It is believed that the knowledge and insights gained provide refined foundations for future research and safe implementation of thermally treated fuels as energy carriers in renewable energy process chains.
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| 8. |
- Gerber, Markus, et al.
(author)
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Association of change in physical activity associated with change in sleep complaints : results from a six-year longitudinal study with Swedish health care workers.
- 2020
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In: Sleep Medicine. - : Elsevier. - 1389-9457 .- 1878-5506. ; 69, s. 189-197
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Journal article (peer-reviewed)abstract
- OBJECTIVE: To increase our understanding of patterns of change in physical activity and sleep complaints and to test whether intra-individual changes in physical activity are correlated with intra-individual changes in sleep complaints across four measurement time-points over six years, adopting both a between-person and within-person perspective.METHODS: Data from a longitudinal cohort study were used in this research. At baseline, 3187 participants took part in the study (86% women, Mage = 46.9 years). The response rate was 84% (n = 3136) after two years, 60% (n = 2232) after four years, and 40% (n = 1498) after six years. Physical activity was assessed with the [51] widely used 4-level physical activity scale (SGPALS), and sleep complaints with three items from the Karolinska Sleep Questionnaire (KSQ). Patterns and correlations of change between physical activity and sleep complaints were examined with latent growth curve modeling.RESULTS: Changes in physical activity were associated with changes in sleep complaints across the six years. More specifically, significant associations occurred between baseline levels, correlated (between-person) change, and coupled (within-person change). These associations indicate that higher physical activity levels are not only cross-sectionally linked with fewer sleep complaints, but that increases in physical activity over time (either in comparison to others or to oneself) are paralleled by decreases in sleep complaints.CONCLUSIONS: Given that changes in physical activity and sleep are correlated, our findings indicate that it is worthwhile to initiate more physically active lifestyles in physically inactive individuals; and to ensure that those who are already physically active maintain their physical activity levels over longer periods.
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| 9. |
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| 10. |
- Gerber, Markus, et al.
(author)
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Cardiorespiratory fitness protects against stress-related symptoms of burnout and depression.
- 2013
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In: Patient Education and Counseling. - : Elsevier BV. - 0738-3991 .- 1873-5134. ; 93:1, s. 146-52
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Journal article (peer-reviewed)abstract
- OBJECTIVE: To examine how cardiorespiratory fitness and self-perceived stress are associated with burnout and depression. To determine if any relationship between stress and burnout/depression is mitigated among participants with high fitness levels.METHODS: 197 participants (51% men, mean age=39.2 years) took part in the study. The Åstrand bicycle test was used to assess cardorespiratory fitness. Burnout was measured with the Shirom-Melamed Burnout Questionnaire (SMBQ), depressive symptoms with the Hospital Anxiety and Depression Scale (HAD-D). A gender-matched stratified sample was used to ensure that participants with varying stress levels were equally represented.RESULTS: Participants with moderate and high fitness reported fewer symptoms of burnout and depression than participants with low fitness. Individuals with high stress who also had moderate or high fitness levels reported lower scores on the SMBQ Tension subscale and the HAD-D than individuals with high stress, but low fitness levels.CONCLUSION: Better cardiovascular fitness seems to be associated with decreased symptoms of burnout and a better capacity to cope with stress.PRACTICAL IMPLICATIONS: Promoting and measuring cardiorespiratory fitness can motivate employees to adopt a more physically active lifestyle and thus strengthen their ability to cope with stress exposure and stress-related disorders.
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