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951.
Alexis Dewaele Mieke Van Houtte Katrien Symons Ann Buysse 《Journal of homosexuality》2017,64(13):1832-1849
In this study the characteristics of the sexual debut of men who have sex with men (MSM) and men who have sex with women (MSW) age 35 or younger (N = 1,201) were compared with one another. We investigated whether these characteristics were associated with sexual health and behavior, and to what extent. Compared to MSW, MSM tended to be older when they had their first sexual intercourse; their first sex partner was older, they felt less ready, and they experienced more pain. We also found that they reported a higher number of lifetime sexual partners and less condom use compared to MSW. Similarities were also ascertained, such as the fact that individuals from both groups do not differ significantly regarding how they experienced their first sexual intercourse emotionally. Many differences between these groups should not always be seen as problematic, whereas others still indicate a need for targeted interventions. 相似文献
952.
Body Image in Dyadic and Solitary Sexual Desire: The Role of Encoding Style and Distracting Thoughts
Alessandra Dosch Paolo Ghisletta Martial Van der Linden 《Journal of sex research》2016,53(9):1193-1206
This study explored the link between body image and desire to engage in sexual activity (dyadic and solitary desire) in adult women living in a long-term couple relationship. Moreover, it considered two psychological factors that may underlie such a link: the occurrence of body-related distracting thoughts during sexual activity and encoding style (i.e., the tendency to rely on preexisting internal schemata versus external information at encoding). A total of 53 women (29 to 47 years old) in heterosexual relationships completed questionnaires assessing sexual desire (dyadic, solitary), body image, body-related distracting thoughts during sexual activity, and encoding style. Results showed that poor body image was associated with low dyadic and solitary sexual desire. Body-related distracting thoughts during sexual activity mediated the link between body image and solitary (but not dyadic) sexual desire. Finally, the mediation of body-related distracting thoughts between body image and solitary sexual desire was moderated by encoding style. A negative body image promoted the occurrence of body-related distracting thoughts during sexual activity, especially in internal encoders. Our study highlights the importance of body image, distracting thoughts, and encoding style in women’s solitary sexuality and suggests possible factors that may reduce the impact of those body-related factors in dyadic sexual desire. 相似文献
953.
J. Sahmel C. A. Barlow B. Simmons S. H. Gaffney H. J. Avens A. K. Madl J. Henshaw R. J. Lee D. Van Orden M. Sanchez D. J. Paustenbach 《Risk analysis》2014,34(8):1448-1468
The potential for para‐occupational (or take‐home) exposures from contaminated clothing has been recognized for the past 60 years. To better characterize the take‐home asbestos exposure pathway, a study was performed to measure the relationship between airborne chrysotile concentrations in the workplace, the contamination of work clothing, and take‐home exposures and risks. The study included air sampling during two activities: (1) contamination of work clothing by airborne chrysotile (i.e., loading the clothing), and (2) handling and shaking out of the clothes. The clothes were contaminated at three different target airborne chrysotile concentrations (0–0.1 fibers per cubic centimeter [f/cc], 1–2 f/cc, and 2–4 f/cc; two events each for 31–43 minutes; six events total). Arithmetic mean concentrations for the three target loading levels were 0.01 f/cc, 1.65 f/cc, and 2.84 f/cc (National Institute of Occupational Health and Safety [NIOSH] 7402). Following the loading events, six matched 30‐minute clothes‐handling and shake‐out events were conducted, each including 15 minutes of active handling (15‐minute means; 0.014–0.097 f/cc) and 15 additional minutes of no handling (30‐minute means; 0.006–0.063 f/cc). Percentages of personal clothes‐handling TWAs relative to clothes‐loading TWAs were calculated for event pairs to characterize exposure potential during daily versus weekly clothes‐handling activity. Airborne concentrations for the clothes handler were 0.2–1.4% (eight‐hour TWA or daily ratio) and 0.03–0.27% (40‐hour TWA or weekly ratio) of loading TWAs. Cumulative chrysotile doses for clothes handling at airborne concentrations tested were estimated to be consistent with lifetime cumulative chrysotile doses associated with ambient air exposure (range for take‐home or ambient doses: 0.00044–0.105 f/cc year). 相似文献
954.
Traditional route planners assist in finding the shortest or fastest route from one place to another. This paper presents a novel approach to path finding in a directed graph, namely a target distance, motivated by the problem that a recreational cyclist deals with when searching a nice route of a certain length. The problem is defined as a variant of the arc orienteering problem (AOP), a new combinatorial optimisation problem in which the score of a route in a directed graph has to be maximised by visiting arcs, while each arc can be visited at most once and the total cost of the route should not exceed a predefined cost. The contribution of this paper is threefold: (1) a mathematical model of the AOP is provided, (2) a metaheuristic method that solves AOP instances to near optimality in 1 s of execution time, is proposed and evaluated, and (3) two real-life applications of the method are presented. An on-line cycle route planning application offers personalised cycle routes based on user preferences, and an SMS service provides cyclists “in the field” with routes on demand. 相似文献
955.
956.
Herman Van Coppenolle S. Djobova A. Niemiro I. Dobreva K. U. Leuven 《European review of aging and physical activity》2011,8(2):103-104
Experts in Adapted Physical Activity (APA) for elderly persons from 66 higher education institutions of 29 European countries
worked during 3 years together (2004–2007) in producing education materials to promote an active lifestyle, the content of
an APA programme for the elderly at master and bachelor level, a motivational DVD (Never too old to be Active: The Joy of
Movement and practical active ageing activity cards and a brochure with a European survey and recommendations. During the
dissemination year (2009–2010) these materials were translated from English into 15 European languages and disseminated in
all countries in institutions of Higher Education (physical education, physiotherapy, sport science), nursing homes for elderly
persons and caregivers). In each country, as many as possible elderly persons were approached as well as the concerned ministries,
sports organizations and the press. A consortium was created between the universities of Amiens (France), Groningen (The Netherlands)
and Verona (Italy), to start up the European Masters programme in APA for the elderly and the motivating products disseminated
the urgent message of the Thematic Network for all elderly persons with and without disabilities in Europe “Save yourself
by more physical activity” This same approach applied in all European countries at the same time during these 4 years, gave
a boost to the better education of students in this matter: stimulating the responsibility and motivation of elderly persons
for bringing more physical activity in their daily schedule, during at least 30 min each day. The established cooperation
between the actors of the network should however be continued through the European Master in APA for the elderly and further
dissemination of the products through the website 相似文献
957.
Eeckhaut MC Lievens J Van de Putte B Lusyne P 《The International migration review》2011,45(2):269-296
This article compares divorce risks according to marriage type. The common dichotomy between ethnic homogamous and ethnic heterogamous marriages is further elaborated by differentiating a third marriage type; ethnic homogamous marriages between individuals from an ethnic minority group and a partner from the country of origin. Based on the analysis of data concerning the Turkish and Moroccan minorities in Belgium, it has been confirmed that the divorce risk associated with these marriages is higher than that of other ethnic homogamous marriages. However, specific divorce patterns according to marriage type also indicate the importance of differences between the minority groups. 相似文献
958.
Mark J. Van Ryzin Donna MillsSteven Kelban Masiel Rodriquez VarsPatricia Chamberlain 《Children and youth services review》2011,33(11):2267-2272
Youth in foster care often undergo multiple transitions before reaching adulthood, and these transitions often create significant stress and can exacerbate emotional and behavioral problems. A measurement instrument (the Youth Experience of Transitions, or YET) was designed to assess foster care youths' understanding of transitions, and this instrument was tested on a group of youth undergoing an intervention program designed to assist them in coping with the stress of these transitions while in foster care. The intervention was based on the Transitions Framework by William Bridges and was implemented in multiple community agencies with funding from the Andrus Family Fund. Using factor analysis, we found that the YET contained two factors representing (1) openness and (2) determination. For youth in the participating foster care programs, growth in openness from baseline to 6 months was linked to a significant decrease in internalizing symptoms; no significant links were found for externalizing symptoms. Implications for foster care intervention programs are discussed. 相似文献
959.
Elfi Baillien Alfredo Rodriguez-Muñoz Anja Van den Broeck Hans De Witte 《Work and stress》2013,27(2):128-146
In this study the causal relationships between work characteristics, in terms of job demands and job resources, and both targets’ and perpetrators' reports of workplace bullying, are investigated. In line with the Job Demands-Resources model and the bullying literature, we assumed that both high job demands (i.e. workload, role conflict and job insecurity) and low job resources (i.e. task autonomy, social support and skill utilization) increase bullying over time (i.e. normal causation). Our sample included 177 employees of various establishments of a large Belgian organization. The results of structural equation modelling analyses partially supported our hypothesis. As expected, we found that T1 job demands related positively to targets’ reports of bullying at T2 one year later, and that T1 job resources related negatively to T2 targets’ reports of bullying. Unexpectedly, there was no significant cross-lagged effect of T1 job demands and resources on T2 perpetrator's reports of bullying. No evidence was found for reverse causation or reciprocal effects. Overall, at least for targets, these findings support the validity of the theoretical models postulating a causal link from work characteristics to workplace bullying. 相似文献
960.
We propose a non-parametric methodology to study the presence of economies of scope between teaching and research (i.e., the teaching–research nexus). In particular, the paper advocates a conditional version of the ‘benefit-of-the-doubt’ approach to estimate the relationship between professors’ overall academic output, measured by a composite measure of multi-dimensional and importance-adjusted scores of teaching effectiveness and research productivity, and the time devoted to teaching and to research. The methodology is illustrated with a dataset of professors working at a Business & Administration department of a university college where the time allocation of teaching and research was assigned exogenously. The outcome of the analysis indicates the presence of limited scope economies for professors with an extensive research time. 相似文献