Domestic chicken diversity: Origin, distribution, and adaptation

Chicken is the most numerous among the domesticated livestock species. Across cultures, religions, and societies, chicken is widely accepted with little or no taboo compared to other domestic animals. Its adaptability to diverse environmental conditions and demonstrated potential for breeding improvement provide a unique genetic resource for addressing the challenges of food security in a world impacted by climatic change and human population growth. Recent studies, shedding new knowledge on the chicken genomes, have helped reconstruct its past evolutionary history. Here, we review the literature concerning the origin, dispersion, and adaptation of domestic chicken. We highlight the role of human and natural selection in shaping the diversity of the species and provide a few examples of knowledge gaps that may be the focus of future research

Predicting adherence to combination antiretroviral therapy for HIV in Tanzania:A test of an extended theory of planned behaviour model

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Stigma, disclosure, coping, and medication adherence among people living with HIV/AIDS in Northern Tanzania

This study examines a proposed theoretical model examining the interrelationships between stigma, disclosure, coping, and medication adherence among 158 HIV-infected patients on antiretroviral therapy (ART) in northern Tanzania. Perceived and self-stigma, voluntary and involuntary disclosure, positive and negative coping, and demographics were assessed by trained interviewers, and self-reported adherence was collected during 5 months follow-up. Data were examined using correlation and regression analyses. The analyses showed that perceived stigma is primarily related to involuntary disclosure, whereas self-stigma is related to voluntary disclosure. Religious coping positively relates to acceptance, whereas perceived stigma explains higher levels of denial of HIV status. Lastly, adherence was negatively affected by alcohol use, self-stigma, and denial. We conclude that adherence is predominantly predicted by negative rather than positive coping mechanisms. Therefore, substituting maladaptive coping mechanisms like denial and alcohol use with a more adaptive coping style may be an important strategy to improve long-term ART adherence and well-being of patients. Moreover, this study showed that it is useful to examine both involuntary and voluntary disclosure when studying its relation with stigma

Editorial : Integrating mitigation and adaptation into development: the case of Jatropha curcas in sub-Saharan Africa

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