21,626 research outputs found

    Condom Use among Young African American Men: Implications for Planning Interventions

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    Condom Use among Young African American Men: Implications for Planning Interventions Sexually transmitted diseases, including HIV, continue to present significant public health problems affecting young people in the United States, especially African Americans. While African Americans make up about 12% of the U.S. population, in 2010 they accounted for 44% of new HIV infections in 2010 and 48% of all persons living with AIDS in 2007. The 2010 data shows that of these new cases, 38% occurred among African American males ages 13-24 years old. Correct condom use remains a challenge in this population and efforts to increase condom use among minority males has been a formidable challenge. This paper reports the results of formative research conducted in order to guide the development of an intervention to increase consistent, effective condom use for young African American males. Methods: A snowball sampling approach was used to recruit participants. African American males, ages 18-24, who self-reported as sexually active were eligible to participate in one of four focus groups or one of six individual interviews. All study events were conducted at community locations. Each event was audiotaped and notes were taken. Analysis was performed using using NVivo-9. The coding strategy included emic and etic codes and a coding tree was developed which was used to identify themes. Results: A total of 36 African American males between the ages of 18-24 (mean 20.7 years) took part. In general, participants felt condom use was highly influenced by contextual factors including partner interest, partner communication, length of relationship and trust. Condom use was also influenced by a sense of invincibility and being caught up in the moment. Notably, most sexual activity occurred outside of a relationship, most often within the party scene or as quickly arranged hook-ups. Analysis: In order to ensure maximum impact on the development of the intervention, the results from this formative phase were viewed through the Transtheoretical Model of Behavior Change (TTM) and most participants would be described as being in the pre-contemplation or contemplation stages of behavioral change. While all participants expressed some understanding of the risks of unprotected sex, many did not connect risks to consequences. While the data did not indicate that condom use behavior was likely to change in the short-term (less than 6 months), several participants were contemplating making a change. Discussion: The snowball sampling approach allowed us to understand the participants’ social network and allowed us to consider social influences as well as about individual attitudes and beliefs. In the TTM frame, interventions designed for this population need to include contemplators and pre-contemplators and should focus on modification of cognition, affect and behaviors. Our research also shows that several of the underlying assumptions of TTM are at odds with the framework within which sex often occurs for this population and condom use decisions are highly influenced by the social context. In light of the results, the intervention placed condom use into a health promotion context. It combines group activities and one-on-one interaction. Group activities can impact shared values and beliefs and, thus, the intervention builds social support for behavior changes while addressing individual capacity

    The Length of an SLE - Monte Carlo Studies

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    The scaling limits of a variety of critical two-dimensional lattice models are equal to the Schramm-Loewner evolution (SLE) for a suitable value of the parameter kappa. These lattice models have a natural parametrization of their random curves given by the length of the curve. This parametrization (with suitable scaling) should provide a natural parametrization for the curves in the scaling limit. We conjecture that this parametrization is also given by a type of fractal variation along the curve, and present Monte Carlo simulations to support this conjecture. Then we show by simulations that if this fractal variation is used to parametrize the SLE, then the parametrized curves have the same distribution as the curves in the scaling limit of the lattice models with their natural parametrization.Comment: 18 pages, 10 figures. Version 2 replaced the use of "nu" for the "growth exponent" by 1/d_H, where d_H is the Hausdorff dimension. Various minor errors were also correcte

    Processing and Transmission of Information

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    Contains report on one research project.National Aeronautics and Space Administration (Grant NsG-334)Joint Services Electronics Programs (U.S. Army, U.S. Navy, and U. S. Air Force) under Contract DA 28-043-AMC-02536(E

    Using a collaborative assessment design to support student learning

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    The purpose of the study was to try to develop an understanding of how groups of pre-service teachers organised, planned and built two information and communication technologies (ICT) resources using a learn-technology-by-design framework. The benefits for students in using a learn-by-design approach have been well researched, and the research has covered a broad range of research streams. A design-based research approach underpins the research. This paper presents the observational data, which was collected in an ICT in the Education unit of study. The collaborative design assessment provided pre-service teachers with the opportunity to collaboratively build an Interactive Whiteboard (IWB) resources and a web-based teaching (website) resource. In this study, seven groups were observed while they engaged in a long-term collaboration and completed two group assessment tasks. The results suggest that students needed both guidance and time to develop their skills in collaboration. While there were variations in the collaborative patterns, these variations did not impact the success of the groups in the development of their ICT resources

    Ecology and Conservation of the Diamond-backed Terrapin

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    Processing and Transmission of Information

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    Contains research objectives, summary of research and reports on two research projects.National Aeronautics and Space Administration (Grant NGL 22-009-013)National Aeronautics and Space Administration (Contract NAS8-27733)U. S. Army Research Office - Durham (Contract DAHC04-69-C-0042)U. S. Army Research Office - Durham (Contract DAHC04-71-C-0039)Joint Services Electronics Programs (U. S. Army, U. S. Navy, and U. S. Air Force) under Contract DAAB07-71-C-030

    Heat kernels on curved cones

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    A functorial derivation is presented of a heat-kernel expansion coefficient on a manifold with a singular fixed point set of codimension two. The existence of an extrinsic curvature term is pointed out.Comment: 4p.,sign errors corrected and a small addition,uses JyTeX,MUTP/94/0

    Processing and Transmission of Information

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    Contains reports on four research projects.National Aeronautics and Space Administration (Grant NGL 22-009-013)Joint Services Electronics Program (Contract DAAB07-71-C-0300

    Remarks on geometric entropy

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    The recently discussed notion of geometric entropy is shown to be related to earlier calculations of thermal effects in Rindler space. The evaluation is extended to de Sitter space and to a two-dimensional black hole.Comment: 7p.,uses jyTeX,MUTP/94/
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