Target Groups for Preventing AIDS Among Intravenous Drug Users

The acquired immune deficiency syndrome (AIDS) has rapidly become the most serious medical consequence of injecting illicit drugs. Its potential impact on intravenous (IV) drug use is enormous. Human immunodeficiency virus (HIV, also known as HTLV-III and LAV), the virus that causes AIDS, appears, usually, to lead to lifelong infection. At present there is no effective treatment, and the treatments under development may require lifelong antiviral therapy. Since most of the antibody produced in response to HIV infection does not neutralize the virus, and since there is substantial genetic variation in the virus, it will be difficult to develop a vaccine. Even after vaccines are developed, testing their safety and efficacy will be formidable problems. Until either effective treatment or vaccines are developed, control of the epidemic among IV drug users must be attempted through behavior change/prevention efforts. In this paper we will review the epidemiology of AIDS among IV drug users and characteristics of the IV drug-use subculture relevant to prevention efforts. We will then identify different target groups for these prevention efforts, present available evidence about behavior change in these groups, and then briefly discuss how to prevent transmission of HIV to heterosexual partners who are not themselves IV drug users and to the children of IV drug users.     

Longitudinal trajectories of bicultural identity integration in recently immigrated Hispanic adolescents: Links with mental health and family functioning

This study examined, in a sample of recently immigrated Hispanic adolescents in Miami and Los Angeles, the extent to which bicultural identity integration (BII; involving the ability to synthesise one's heritage and receiving cultural streams and to identify as a member of both cultures) is best understood as a developmental construct that changes over time or as an individual‐difference construct that is largely stable over time. We were also interested in the extent to which these trajectories predicted mental health and family functioning. Recent‐immigrant 9th graders (N = 302) were assessed 6 times from 9th to 12th grade. Latent class growth analyses using the first 5 timepoints identified 2 trajectory classes—one with lower BII scores over time and another with higher BII scores over time. Higher heritage and US identity at baseline predicted membership in the higher BII class. At the 6th study timepoint, lower BII adolescents reported significantly poorer self‐esteem, optimism, prosocial behaviour and family relationships compared with their higher BII counterparts. These findings are discussed in terms of further research on the over‐time trajectory of biculturalism, and on the need to develop interventions to promote BII as a way of facilitating well‐being and positive family functioning.     

Ethical issues in research on preventing HIV infection among injecting drug users

The ethical issues in conducting research on preventing HIV infection are among the most complex of any area of human subjects research. This article is an update of a 1987 article that addressed potential conflicts between research design and ethics with respect to AIDS prevention among injecting drug users. The present article reviews current ethical issues that arise in the design and conduct of HIV/AIDS prevention research focused on injecting drug users. Disclaimer: The content of this publication is solely the responsibility of the authors and does not necessarily represent the views of the Beth Israel Medical Center or Johns Hopkins University.     

The use of Web 2.0 technologies in marketing classes: Key drivers of student acceptance

With the proliferation in Web 2.0 technologies, many marketing educators are experimenting with new teaching and learning tools (e.g. Facebook, Twitter, YouTube and Second Life). The benefits of such technologies are often touted by scholars, and indeed, there is a good deal of evidence to support such a view. However, increasingly, educators are highlighting some of the limitations of technology in the learning environment. To draw parallels with other new product research in marketing, the adoption of new learning technologies is often not so widespread. The literature exhibits inconsistency about the willingness of students to adopt new technology in a learning environment, but no systematic research into the factors that affect technology acceptance yet exists. This research fills a gap in the literature by applying an augmented Technology Acceptance Model (TAM) to understand students' future intentions to adopt Twitter, a Web 2.0 technology shown to offer students a variety of benefits. By using partial least squares, the research shows that the main proximal driver of student adoption of Twitter is a utilitarian attitude. Students need to be convinced about ‘what's in it for me’, rather than persuaded about the technology's hedonic benefits. Other affective variables such as an individual's affinity with computers and risk tolerance were also found to be important drivers of perceived ease of use and perceived usefulness, the TAM's key antecedents. Copyright © 2013 John Wiley & Sons, Ltd.     

What Makes Crohn's Disease Patients Difficult to Manage? The Role of Psychosocial Factors

Most GI clinicians face the problem of a small group Crohn's Disease (CD) patients who function poorly and consume inordinate amounts of service with poor outcome. This study examines the hypothesis that psychosocial factors differentiate the CD patients who function poorly from the typical CD patient. A prototypal sample of CD patients with problems functioning, more typical CD patients (not selected for having problems in functioning), and healthy controls each completed a battery of validated psychosocial measures of disease-specific quality of life, coping skills, social support and life stress, perceived medical symptoms and life history factors. Chart data on hospital admissions, ER, GI, Surgeon, and GP visits were also collected. The CD patients with problems functioning reported more symptoms (GI and non-GI) and had many more ER, GI, and GP visits than the typical group. Psychologically, those with problems functioning had poorer quality of life and were more likely to cope using emotional discharge and support seeking. They experienced significantly more stress and reported a more chaotic family history. No differences on an experimental method of information processing biases were found between the CD groups, however. These results indicated that patients with problems functioning, selected by GI staff because they were best-case examples of functional difficulties, shared little with a matched group of typical CD patients. These patients likely require psychological as well as medical intervention to best manage their illness.