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1.
Sci Rep ; 13(1): 15452, 2023 09 18.
Artículo en Inglés | MEDLINE | ID: mdl-37723171

RESUMEN

Recent literature highlights the potential of animal pollinator-dependent (PD) crops in enhancing food and nutrition security, although there is a lack of detailed household-level estimates. In this study, we investigate the nutrient composition, productivity, and contribution of PD and pollinator-independent (PI) crops to household nutrition in four sub-Saharan African (SSA) countries. We also evaluate the impact of reallocating resources from PI crops to PD crops on nutrient deficiencies, utilizing nationally representative panel data from three waves and over 30,000 household-year observations. Our findings reveal that PD crops exhibit higher micronutrient content per unit, albeit with lower macronutrient content compared to PI crops. PI crops have higher yield of calories per hectare while PD crops have higher vitamin A yield per hectare. However, protein and iron yield for PD and PI crops varies across countries. PI crops predominantly contribute to macronutrients and iron, while PD crops significantly contribute to vitamin A production. Our econometric results demonstrate that increasing the cultivation of PD crops relative to PI crops reduces the prevalence of nutrient deficiencies and increases crop income without compromising macronutrients production. This suggests that greater investment in PD crop production can be an integral approach to achieving nutrition security in SSA.


Asunto(s)
Dieta , Vitamina A , Animales , Nutrientes , Productos Agrícolas , Hierro , África del Sur del Sahara
3.
Dev World Bioeth ; 15(3): 241-7, 2015 Dec.
Artículo en Inglés | MEDLINE | ID: mdl-25039421

RESUMEN

Developing countries face numerous barriers to conducting effective and efficient ethics reviews of international collaborative research. In addition to potentially overlooking important scientific and ethical considerations, inadequate or insufficiently trained ethics committees may insist on unwarranted changes to protocols that can impair a study's scientific or ethical validity. Moreover, poorly functioning review systems can impose substantial delays on the commencement of research, which needlessly undermine the development of new interventions for urgent medical needs. In response to these concerns, the Drugs for Neglected Diseases Initiative (DNDi), an independent nonprofit organization founded by a coalition of public sector and international organizations, developed a mechanism to facilitate more effective and efficient host country ethics review for a study of the use of fexinidazole for the treatment of late stage African Trypanosomiasis (HAT). The project involved the implementation of a novel 'pre-review' process of ethical oversight, conducted by an ad hoc committee of ethics committee representatives from African and European countries, in collaboration with internationally recognized scientific experts. This article examines the process and outcomes of this collaborative process.


Asunto(s)
Antiprotozoarios/uso terapéutico , Investigación Biomédica/ética , Revisión Ética , Nitroimidazoles/uso terapéutico , Tripanosomiasis Africana/tratamiento farmacológico , Países en Desarrollo , Humanos , Cooperación Internacional
4.
BMC Med Ethics ; 14: 23, 2013 Jun 05.
Artículo en Inglés | MEDLINE | ID: mdl-23738971

RESUMEN

BACKGROUND: On site monitoring of research is one of the most effective ways to ensure compliance during research conduct. However, it is least carried out primarily for two reasons: presumed high costs both in terms of human resources and finances; and the lack of a clear framework for undertaking site monitoring. In this paper we discuss a model for research site monitoring that may be cost effective and feasible in low resource settings. METHODS: This was a retrospective review of research site monitoring reports covering a period of four years. RESULTS: The monitoring was conducted by the Uganda National Council for Science and Technology, the National Drug Authority and the National HIV/AIDS Research and Ethics Committee over the period 2007 to 2010.The monitoring team was usually three members comprising of two experts in research ethics and an assistant. A total of 28 site monitoring visits covering 40 research projects were reviewed. 25% of the site monitoring reports revealed violation of the regulatory requirement for valid ethical approval. 36% of the site reports showed some instances of informed consent violation, 28% showed violation of the rights and welfare of research participants, 38% revealed that sites did not report SAEs to regulatory authorities and many sites lacked adequate GCP and GCLP. However, most of the sites monitored had adequate facilities to conduct the respective studies and good working practices. CONCLUSION: This model employed by the monitoring teams to evaluate research compliance is effective in auditing ethical practice. Compliance monitoring is feasible and affordable in a resource limited setting. Research protocol non compliance is still a major problem in Uganda, and there is need for a pro-active approach to this vice by all stake holders if ethical conduct of research is to be achieved.


Asunto(s)
Protocolos Clínicos , Comités de Monitoreo de Datos de Ensayos Clínicos , Ensayos Clínicos como Asunto/ética , Investigación Participativa Basada en la Comunidad/ética , Investigación Participativa Basada en la Comunidad/normas , Experimentación Humana/ética , Investigadores/normas , Protocolos Clínicos/normas , Ensayos Clínicos como Asunto/normas , Ética en Investigación , Estudios de Factibilidad , Adhesión a Directriz , Experimentación Humana/normas , Humanos , Investigadores/educación , Estudios Retrospectivos , Uganda
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