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61.
Alexandre Laudet PhD Kitty Harris PhD Thomas Kimball PhD Ken C. Winters PhD D. Paul Moberg PhD 《Journal of social work practice in the addictions》2014,14(1):84-100
As the broad construct of recovery increasingly guides addiction services and policy, federal agencies have called for the expansion of peer-driven recovery support services. The high prevalence of substance use and abuse in colleges and universities in the United States constitutes a significant obstacle to pursuing an education for the unknown number of youths who have attained remission from substance use dependence. Collegiate recovery programs (CRPs) are an innovative and growing model of peer-driven recovery support delivered on college campuses. Although no systematic research has examined CRPs, available site-level records suggest encouraging outcomes: low relapse rates and above-average academic achievement. The number of CRPs nationwide is growing, but there is a noticeable lack of data on the model, its students, and their outcomes. We review the literature supporting the need for the expansion of CRPs, present information on the diversity of CRP services, and outline key areas where research is needed. 相似文献
62.
Negotiating transnational ambivalence: how ageing parents grapple with family separation across time
Ken Chih-Yan Sun 《Identities: Global Studies in Culture and Power》2017,24(5):590-605
ABSTRACTThis article uses older parents of parachute kids as an example to explore the ways in which the heads of transnational households assess intergenerational intimacy at a later stage of their life trajectories. I argue that transitioning to a later life stage motivates or even demands older parents reorient their perspectives on the separation from their children overseas. Specifically, I offer the concept of transnational ambivalence to analyse the processes whereby older parents grapple with the meaning of being physically separated from their children. This study demonstrates how the interplay between extended family separation and human ageing provokes complex feelings and emotions among parents. In addition, this research chronicles the factors that explain the variation in parental ambivalence. In so doing, this article contributes to the literature on transnational families by illuminating the temporal reflexivity of parents ‘left behind’. 相似文献
63.
Vocal plasticity may allow birds to reduce masking effects of noise pollution arising from urbanization. Mountain chickadees (Poecile gambeli) use both songs and calls during the dawn chorus, which vary in masking susceptibility. Thus, increasing song or call frequency, or switching between vocalization types are all potential mechanisms to reduce masking during fluctuating noise conditions. Further, prior experience with noise pollution may be a necessary precursor to allow birds to alter signals in response to sudden noisy conditions. To determine how mountain chickadee songs, calls, and chorus composition are affected by noise, we recorded 55 males across gradients of local ambient noise and habitat urbanization in three cities in British Columbia, Canada. Of these individuals, 31 were also exposed to 5-min experimental noise treatments. Habitat urbanization was quantified through a continuous index reflecting properties of urbanized areas. Only song frequency increased with local ambient noise, and this effect varied regionally. In response to experimental noise exposure, males increased the frequency of their calls (but not of their songs), and varied their use of songs vs. calls. Interestingly, this response was dependent on local ambient noise levels: males in noisy areas shifted to using relatively more songs, whereas males in quiet areas shifted to using relatively more calls. These findings may suggest that although mountain chickadees are capable of adjusting their vocalizations, choosing a response which can lead to masking release may require prior exposure to high levels of ambient noise. 相似文献
64.
Kristen?L.?D.?MariniEmail author Ken?A.?Otter Stefanie?E.?LaZerte Matthew?W.?Reudink 《Urban Ecosystems》2017,20(6):1291-1300
Urbanization creates new habitats with novel benefits and challenges not found in natural systems. How a species fares in urban habitats is largely dependent on its life history, yet predicting the response of individual species to urbanization remains a challenge. While some species thrive in urban areas, others do poorly or are not present at all. Mountain chickadees (Poecile gambeli) are year-round residents of montane regions of western North America. Commonly found in higher-elevation coniferous forests, these birds can also be found in urban areas where they will regularly visit bird feeders and nest in nest boxes. We monitored mountain chickadees nesting along a habitat gradient, from natural habitat to suburban areas, to determine if the degree of urbanization was associated with: clutch size and success; nestling growth rates; or variation in parental size and age. Females nesting in urbanized areas initiated clutches earlier in the breeding season than those in natural areas, but neither fledging success nor the rate of nestling mass-change differed between habitats. Nestling feather growth-rate increased with later first egg dates in both habitats, and the magnitude of this increase was greatest in urban habitats. We found no difference in the proportion of first-time breeders versus experienced breeders between habitat types, nor any differences in male or female mass or size. Our results indicate no detriment to nesting in urban habitats, suggesting mountain chickadees are able to adapt to moderate urbanization much like other members of the Paridae family. 相似文献
65.
Kristin Haraldstad Gudrun Rohde Tonje Holte Stea Hilde Lohne-Seiler Ken Hetlelid Gøran Paulsen Sveinung Berntsen 《European review of aging and physical activity》2017,14(1):8
Background
Muscular strength is associated with functional ability in elderly, and older adults are recommended to perform muscle-strengthening exercise. Understanding how improved muscle strength and -mass influence general and specific domains of quality of life is important when planning health promotion efforts targeting older adults. The aims of the present study were to describe changes in health-related quality of life (HRQOL) in older men participating in 12 weeks of systematic strength training, and to investigate whether improvements in muscle strength and muscle mass are associated with enhancements in HRQOL.Methods
We recruited 49 men aged 60–81 years to participate in an intervention study with pre-post assessment. The participants completed a 12-week strength training program consisting of three sessions per week. Tests and measurements aimed at assessing change in HRQOL, and changes in physical performance (maximal strength) and physiological characteristics. HRQOL was measured using the 12-item short-form survey (SF-12). Muscle mass was assessed based on changes in lean mass (leg, trunk, arm, and total), and strength was measured as one-repetition maximum in leg extension, leg press, and biceps curl.Results
Two of the eight HRQOL SF-12 scores, role physical and general health, and the physical component summary scores, increased significantly during the intervention period. Small significant positive correlations were identified between improvements in muscle strength, and better physical and social function. Moreover, a significant increase in total muscle mass was seen during the intervention period.Conclusions
The positive, findings from this study would suggest that systematic strength training seems to be a beneficial intervention to improve HRQOL, muscle strength and muscle mass in older men.66.
Len Thomas Stephen T. Buckland Ken B. Newman John Harwood 《Australian & New Zealand Journal of Statistics》2005,47(1):19-34
This paper proposes a unified framework for defining and fitting stochastic, discrete‐time, discrete‐stage population dynamics models. The biological system is described by a state‐space model, where the true but unknown state of the population is modelled by a state process, and this is linked to survey data by an observation process. All sources of uncertainty in the inputs, including uncertainty about model specification, are readily incorporated. The paper shows how the state process can be represented as a generalization of the standard Leslie or Lefkovitch matrix. By dividing the state process into subprocesses, complex models can be constructed from manageable building blocks. The paper illustrates the approach with a model of the British grey seal metapopulation, using sequential importance sampling with kernel smoothing to fit the model. 相似文献
67.
Ken Plummer 《The Sociological review》2003,51(1):157-173
Book reviewed in this article:
Passionate Politics: Emotions and Social Movements, Jeff Goodwin, James M. Jasper, and Francesca Polletta (eds)
Community, Crime and Disorder. Safety and Regeneration in Urban Neighbourhoods, Lynne Hancock
Privatising Culture: Corporate Art Intervention Since the 1980s Chin-tao Wu
Talcott Parsons Today: His Theory and Legacy in Contemporary Sociology, A. Javier Trevino (ed.)
Talcott Parsons: An Intellectual Biography, Uta Gerhardt
Professionalism: The Third Logic, Eliot Freidson
Sport, Leisure and Culture in Twentieth-Century Britain, Jeffrey Hill
The End of the Terraces: The Transformation of English Football in the 1990s, Anthony King
Biographical Research, Brian Roberts
Reading Autobiography: A Guide for Interpreting Life Narratives, Sidney Smith and Julia Watson 相似文献
Passionate Politics: Emotions and Social Movements, Jeff Goodwin, James M. Jasper, and Francesca Polletta (eds)
Community, Crime and Disorder. Safety and Regeneration in Urban Neighbourhoods, Lynne Hancock
Privatising Culture: Corporate Art Intervention Since the 1980s Chin-tao Wu
Talcott Parsons Today: His Theory and Legacy in Contemporary Sociology, A. Javier Trevino (ed.)
Talcott Parsons: An Intellectual Biography, Uta Gerhardt
Professionalism: The Third Logic, Eliot Freidson
Sport, Leisure and Culture in Twentieth-Century Britain, Jeffrey Hill
The End of the Terraces: The Transformation of English Football in the 1990s, Anthony King
Biographical Research, Brian Roberts
Reading Autobiography: A Guide for Interpreting Life Narratives, Sidney Smith and Julia Watson 相似文献
68.
Many universities, colleges, and schools are contemplating mandatory computer ownership policies for undergraduate students. Review of these policies and the rhetoric employed in debate over such policies leaves some with strong misgivings. I suggest that seemingly widely held social values and a number of suspect assumptions underlie such policies, the questions raised by both their supporters and detractors, and the answers offered in response to those questions. Moreover, I identify four serious ethical concerns linked to mandatory computer ownership policies. Therefore, I argue that social science educators and practitioners have an ethical responsibility to resist such policies. 相似文献
69.
70.
Ken Israelstam 《Australian and New Zealand Journal of Family Therapy》2017,38(3):342-356
Using a research‐informed version of how analysts think and work, this paper renders more explicit and transparent how analytic concepts can inform working with couples. It describes how each partner's subjectively held belief systems interlock and escalate, which is referred to as ‘colliding subjectivities.’ The paper illustrates the potential for this situation of heightened tension to facilitate change. 相似文献