Resultados de búsqueda - "history"

Chronic Poverty and Long Term Impact Study in Bangladesh por Quisumbing, Agnes R., Baulch, Bob

“…By analysing the results of the community level focus groups, panel survey and life-histories interviews together, a much fuller and more nuanced understanding of chronic poverty and the impact of the selected interventions is produced. …”
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Assessing and attributing the benefits from varietal improvement research: evidence from Embrapa, Brazil por Pardey, Philip G., Alston, Julian M., Chan-Kang, Connie, Magalhaes, Eduardo, Vosti, Stephen A.

“…If a geometric attribution rule based on genetic histories is used in conjunction with quantitative evidence on the extent of research collaborations to account for the innovative effort of others, the ratio drops substantially to 16:1. …”
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The Human Capital Study 2002-04: tracking data collection, coverage, and attrition por Grajeda, Ruben, Behrman, Jere R., Flores, Rafael, Maluccio, John, Martorell, Reynaldo, Stein, Aryeh D.

“…This “Human Capital Study 2002–04” complements and extends data obtained in previous studies by collecting new information on measures of physical health and well-being, schooling and cognitive ability, wealth, consumption and economic productivity, and marriage and fertility histories. This paper describes the study domains and data collection procedures. …”
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Identificación y selección de ecotipos de cacao nativo fino de aroma de la zona nor oriental del Perú por Oliva Cruz, Manuel, Maicelo Quintana, Jorge Luis

“…Cada ecotipo identificado y seleccionado cumplió exigencias estrictas para la elección de plantas, condiciones de vigorosidad, tolerancia a plagas y enfermedades, historial de rendimiento y calidad. Se logró identificar y seleccionar 146 ecotipos de cacao nativo fino de arma, ubicados en diversos pisos altitudinales, sin embargo, se encontró que la mayor diversidad de cacao se encuentra por encima de los 800 msnm.…”
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El rol de las subtropicales en la ganadería de costa por Ayala, Jorge Omar Antonio

“…La historia de los productores de la costa y las pasturas incluye a las Brachiarias Brizantha cv Marandú, que en los suelos arenosos - principalmente del departamento Garay con fuerte historial en horticultura - cuentan con 12 años de implantación. …”
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Regional variations in rural livelihoods: Challenges and opportunities por Belton, Ben, Filipski, Mateusz J., Lambrecht, Isabel B., Fang, Peixun

“…These include generally low levels of agricultural productivity relative to other countries in the region in terms of both land and labor; high rates of landlessness, legacies of land confiscation, and unresolved struggles over land rights and access; and generally poor public infrastructure and services—including electricity, roads, schools, health services, and rural credit—though these were improving rapidly in many places before 2020; relatively low levels of diversification and capital in the rural nonfarm economy; high rates of international and domestic outmigration; and histories of ethnopolitical conflict and insecurity.…”
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Functional Traits Mediate the Natural Enemy Response to Land Use at the Local Scale por Szudruk Pascual, María Noel, Chillo, María Verónica, Garibaldi, Lucas Alejandro, Amoroso, Mariano M.

“…Arthropods are key nodes for the provision of ecosystem services such as pest control, but their response to land-use change is highly variable depending on the scale of analysis and the natural enemies’ life histories. We evaluate the effects of landscape- and local-scale variables of natural enemies’ communities on small-scale agriculture. …”
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Huerta jardín con plantas medicinales silvestres y nativas en la Patagonia andina por Amico, Ivana Lourdes, Guajardo, Jimena Johana

“…Las especies silvestres que no son de la zona pero que han logrado naturalizarse exitosamente, también resultan importantes porque muchas veces reportan usos en sus lugares de origen y constan de un interesante historial etnobotánico. Cultivar diversas especies asociadas, plantas aromáticas, medicinales nativas, permitirá tener mayor biodiversidad y sanidad. …”
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Potential associations between the mite Varroa destructor and other stressors in honeybee colonies (Apis mellifera L.) in temperate and subtropical climate from Argentina por Giacobino, Agostina, Pacini, Adriana Cecilia, Molineri, Ana Ines, Rodriguez, Graciela Adriana, Crisanti, Paola Andrea, Bulacio Cagnolo, Natalia Veronica, Merke, Julieta, Orellano, Emanuel, Bertozzi, Ezequiel, Pietronave, Hernan Pablo, Signorini, Marcelo

“…Additionally, colony life histories are also strongly affected by the management practices employed by beekeepers, especially regarding the Varroa mites control and the supplementary feeding. …”
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Tollarsjuka hos hund : en retrospektiv studie med journalsammanställning av 18 hundar por Veien, Kristi Anne

“…The purpose of this study is to describe case histories from dogs with a possible evidence of "tollarsjuka". 18 private dogs were included in this report. …”

Respuesta a la inducción y sincronización del celo con CIDR®, GnRH y PGF2α en vacas de doble propósito en anestro por Flaquer B., Johanna

“…Se determinó la condición de anestro palpación rectal e historial en registros para la distribución al azar en grupos. …”
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Does Nilaparvata lugens gain tolerance to rice resistance genes through conspecifics at shared feeding sites? por Ferrater, Jedeliza B., Horgan, Finbarr G.

“…(Poaceae), plants between planthoppers from populations with different feeding histories: an ‘avirulent’ population that was continually reared on a susceptible variety, and a ‘virulent’ population that had been selected over several generations on the resistant variety IR62, that possesses the Bph3 gene. …”
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Regeneracion y crecimiento de la caoba (Swietenia macrophylla King) en selvas de Quintana Roo por Snook, Laura K.

“…To determine the regeneration dynamics and growth rate of mahogany in the natural tropical forests of Quintana Roo, oral histories were used to find essentially even-aged stands that had become established naturally between 2 and 75 years ago, after a hurricane, forest fires, or mechanical distrubance (logyards) had occured. …”
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The incidence of calf morbidity and mortality due to vector-borne infections in smallholder dairy farms in Kwale District, Kenya por Muraguri, G.R., McLeod, A., McDermott, John J., Taylor, N.

“…From an initial 41 pure or cross-bred Bos taurus calves which were less than 2 months and whose birth and disease histories were known, study calves were recruited progressively and monitored until they were weaned at around 146 days. …”
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Elucidating Pathways and Discourses Linking Cocoa Cultivation to Deforestation, Reforestation, and Tree Cover Change in Nicaragua and Peru por Orozco-Aguilar, Luis, López-Sampson, Arlene, Leandro-Muñoz, Mariela E., Robiglio, Valentina, Reyes, Martin, Bordeaux, Melanie, Sepúlveda, Norvin, Somarriba, Eduardo

“…In this study, we documented the main pathways and contexts behind cocoa cultivation in two sites with different histories of cocoa cultivation. We combined official statistics, land-use trajectory, satellite imagery, and the Q-analysis to explore the discourses of country experts in Nicaragua and Peru. …”
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Inventario agroecológico de las especies de Gallina ciega (Phyllophaga spp) en la Región I de Nicaragua y validación de trampas artesanales de luz para el control de adultos en dos... por Arguello Chávez, Harold I.

“…Las cantidades de especímenes por especies de gallina ciega no presentan relación con rangos de precipitación, historial de daño (%), tamaño y años de uso de la aparcela, ni entre ellas mismas. …”
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Status of perennial tree germplasm resources in India and their utilization in the context of global genome sequencing efforts por Rajarajan, K., Bharati, A., Anuragi, H., Handa, A.K., Gaikwad, K., Singh, N.K., Mohapatra, K.P., Chandra, P., Chavan, S.B., Chand, L., Gupta, V., Dhillon, R.S., Sirohi, C., Shirin, F., Saravanan, S., Ravishankar, K.V., Sankaran, M., Mehta, H., Venkatesh, G., Verma, A., Kalia, R.K., Dasgupta, M.G., Yasodha, R., Ginwal, H.S., Deshmukh, R., Malik, S.K., Bhaskar, S., Nadaf, A., Nayak, D., Dhyani, S.K., Hendre, P.S., Rizvi, J.

“…Research on long-lived woody perennials is extending our molecular knowledge and understanding of complex life histories and adaptations to the environment, enriching a field that has traditionally drawn its biological inference from a few short-lived herbaceous species. …”
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Local to continent-scale variation in fitness and heritability in common bean (Phaseolus vulgaris) cultivars por MacQueen, Alice H., Khoury, Colin K., Miklas, Phillip N., McClean, Phillip E., Osorno, Juan M., Runck, Bryan C., White, Jeffrey W., Kantar, Michael, Ewing, Patrick M.

“…We report spatial and temporal variation in fitness (seed yield), local adaptation, and segregating genetic variation within three races of common bean (Phaseolus vulgaris L.) with differing domestication histories and genetic diversities. Three‐hundred and twenty‐seven common bean genotypes had seed yield measured at subsets of 70 sites across North America between 1981 and 2015, as part of the Cooperative Dry Bean Nursery (CDBN). …”
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Navigating power imbalances in landscape governance: a network and influence analysis in southern Zambia por Siangulube, F.S., Ros-Tonen, M.A.F., Reed, J., Djoudi, H., Gumbo, D., Sunderland, T.C.H.

“…The intersection of customary and state governance reveals that power imbalances are the product of actors’ social belongingness, situatedness, and settlement histories. We conclude that integrated landscape approaches are potentially suited to balance power by triggering new dynamic social spaces for different power holders to engage in landscape decision-making. …”
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Development of agricultural mechanization in Ghana: Network, actors, and institutions: A case study of Ejura-Sekyedumase district por Cossar, Frances, Houssou, Nazaire, Asante-Addo, Collins

“…The results suggest that, in addition to rising population density and favorable access to local and regional markets, the current pattern of use of tractors by farmers in Ejura district emerged from favorable histori-cal and institutional factors. The current arrangement involving a network of private tractor owners providing trac-tor hire services to a broad set of farmers draws upon the legacy of an earlier institutional intervention and is sus-tained organizationally through kinship and other existing social relationships within and outside the district. …”
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