1,327 research outputs found

    Neurophysiology

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    Contains reports on three research projects.National Institutes of Health (Training Grant 5 TO1 EY00090)Bell Laboratories (Grant

    Neurophysiology

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    Contains reports on five research projects.National Institutes of Health (Training Grant 5 TO1 EY00090)Bell Laboratories (Grant

    Neurophysiology

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    Contains reports on seven research projects.National Institutes of Health (Training Grant 5 TO1 EY00090)Bell Laboratories (Grant

    Hacia un mejor entendimiento sobre los agricultores custodios y sus roles: percepciones de un estudio de caso en Cachilaya, Bolivia

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    Esta publicacion es el resultado de una investigacion colaborativa entre Bioversity International y la Fundacion para la Promocion e Investigacion de Productos Andinos (PROINPA). Se ocupa de las cuestiones relativas a la conservacion de la agrobiodiversidad en finca, un campo poco abordado por la investigacion, a pesar de su rol fundamental en el mantenimiento de la diversidad agrícola mundial. Actores estrategicos en la conservacion en las fincas son los agricultores que, por diversas razones, se distinguen de los demas por su contribucion a la conservacion de la diversidad de cultivos. Los llamamos ‘agricultores custodios’, a pesar de que la terminología pueda no ser adecuada para todos los contextos sociales. El entender quienes son los agricultores custodios, su presencia en el territorio, los tipos de cultivos que mantienen, el por que y como lo hacen, así como el adquirir conocimientos sobre los factores culturales, sociales y economicos detras de sus esfuerzos es, para los científicos, un paso muy importante en la elaboracion de estrategias efectivas de conservación en finca. Las entrevistas abiertas y la observacion participante son metodologías utiles para guiar futuros enfoques metodologicos y así avanzar en la comprension de como los roles de los agricultores custodios pueden ser mejor reconocidos, aprovechados y apoyados por la sociedad. Este trabajo ha sido realizado en el marco de un importante proyecto mundial de las Naciones Unidas apoyado por el FIDA y la Comision Europea, que se centra en el desarrollo de enfoques participativos e innovadores para la conservacion en finca de Especies Olvidadas y Subutilizadas (EOS)

    Climate change and crop diversity: farmers’ perceptions and adaptation on the Bolivian Altiplano

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    Crop diversity is central to traditional risk management practices on the Andean Altiplano and may find renewed importance in adapting to climate change. This study explored the role of crop diversity in farmers’ adaptation actions in eight Aymara communities on the northern Bolivian Altiplano. Using a combination of quantitative and qualitative methods, including multifactor analysis and a community resilience self-assessment, we investigated how farmers’ use of diversity in adaptation is related to their perceptions of crop and variety tolerances and other environmental, social, and economic factors. Few crops and varieties were perceived as tolerant to increasingly intense and unpredictable drought, frost, hail, and pest and disease outbreaks. Some local crops and varieties were perceived as vulnerable to emerging conditions (e.g. oca, papalisa, isaño), whereas bitter potatoes and wild relatives of quinoa and cañahua were perceived as highly stress tolerant and provide food in harsh periods. A total 19% of households surveyed (N = 193) had introduced new crops or varieties—often disease resistant or early maturing—as an adaptive action. Introduction of commercial crops was a common adaptation action, reflecting farmers’ response to warming temperatures and changing economic opportunities, but greater sensitivity of the introduced crops may cause maladaptation. Despite intensification of cropping systems, households continue to maintain a median four potato varieties with different tolerance traits, yet this risk management practice was not perceived as adaptation. Strengthening resilience will require a combination of actions, including maintaining and expanding crop portfolios and restoring soil and ecosystem health, using both traditional and innovative approaches

    Towards a better understanding of custodian farmers and their roles: insights from a case study in Cachilaya, Bolivia.

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    This publication is the result of a research collaboration between Bioversity International and the Fundación para la Promoción e Investigación de Productos Andinos (PROINPA). It deals with issues regarding on-farm conservation of agrobiodiversity, which is a poorly addressed field of research in spite of its pivotal role in the maintenance of global crop diversity. Strategic actors in on-farm conservation are those farmers who, for various reasons, distinguish themselves from others by their contribution to conserving crop diversity. We call them ‘custodian famers’, even though the terminology may not be suitable to all social contexts. Understanding who these custodian farmers are, their presence over the territory, the types of crops they maintain, why and how, as well as gaining insights on the cultural, social and economic drivers behind their efforts is, for scientists, a very important step in devising effective on-farm conservation strategies and this booklet is a contribution in that direction. The open-ended interviews and participant observation methodologies provided in this study are helpful in guiding future methodological approaches and advancing our understanding of how the roles of custodian farmers can be better recognized, harnessed and supported by society. This work has been carried out in the framework of a major global UN Project supported by IFAD and the European Commission, which is focusing on the development of innovative participatory approaches for the conservation of neglected and underutilized species (NUS) on farm

    Physiology

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    Contains reports on seven research projects.Bell Laboratories, Inc.Ortho InstrumentsNational Institutes of Health (Grant 5 TO1 EY00090

    Neurophysiology

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    Contains research objectives and summary of research.National Institutes of Health (Grant 1 RO1 EY01149-01)National Institutes of Health (Grant 5 P01 GM14940-07)Bell Telephone Laboratories, Inc. (Grant)National Institutes of Health (Grant 5 TO1 GM01555-07)M. I. T. Sloan Fund for Basic Researc

    Neurophysiology

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    Contains research objectives and summary of research on ten research projects.National Institutes of Health (Grant 5 R01 EY01149-02)National Institutes of Health (Grant 1 T01 EY00090-01)Bell Telephone Laboratories, Inc. (Grant)National Institutes of Health (Grant 5 TO1 GM00778-19)National Institutes of Health (Grant 5 TO1 GM01555-08

    Neurophysiology

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    Contains reports on twenty research projects.Bell Laboratories (Grant)National Institutes of Health (Grant 5 R01 EY01149-03S2)National Institutes of Health (Grant 5 TO1 EY00090-04)National Institutes of Health (Grant 5 RO1 NS12307-03)National Institutes of Health (Grant K04 NS00010)National Multiple Sclerosis Society (Grant RG-1133-A-1)Health Sciences Fund (Grant 78-10
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