Resultados de búsqueda - "marginalism"

Integration of physiological and remote sensing traits for improved genomic prediction of wheat yield por Garcia Barrios, Guillermo, Robles-Zazueta, Carlos A., Montesinos-López, Abelardo, Montesinos-Lopez, Osval Antonio, Reynolds, Matthew Paul, Dreisigacker, Susanne, Carrillo-Salazar, José A., Acevedo-Siaca, Liana, Guerra-Lugo, Margarita, Thompson, Gilberto, Pecina-Martínez, José A., Crossa, Jose

“…Although incorporating multiple covariates can improve prediction accuracy or reduce the normalized root mean square error, using an extended model with all available covariates is not recommended due to the marginal predictive accuracy gains, increases in phenotyping, costs and complexity of data collection analysis. …”
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Optimizing growth performance, carcass traits, and economic returns in Sasso T44 chickens via partial replacement of conventional feed with locally sourced alternative ingredients por Getahun, A., Kechero, Y., Yemane, N., Dessie, Tadelle, Esatu, Wondmeneh

“…Economic analysis showed T2 offered the highest profitability, with a net return (NR) of 275.18 ETB per chickens and a marginal rate of return (MRR) of 0.44. Despite T4’s lower feed cost, its growth and carcass performance were poor. …”
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Policy engagement report: Institutionalizing multifunctional landscapes in Mbire District, Zimbabwe por Matangi, Dorcas, Nohayi, Ngowenani, Ngoma, Hambulo

“…The discussions also emphasized inclusive participation of women, youth, and marginalized groups, as well as the introduction of livestock insurance and local processing industries to link conservation with livelihoods. …”
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Empowering regions and countries to scale demand-driven, evidence-based agri-food system solutions por Nchanji, Eileen Bogweh, Bailey, Arwen, Ewell, Hanna, Enokenwa Baa, Ojongetakah, Liani, Millicent L., Nortje, Karen, Mulinganya, Noel, Sylla, Almamy, Munoz, Gutierrez Odette, Mukhopadhyay, Prama

“…This is particularly true if we consider underserved groups within communities who are not invited to influence design but often remain on the margins of innovation development and benefits. This not only undermines the potential impact of the innovation but also risks reinforcing existing inequities—with innovations disproportionately benefiting the better connected and already-included, and potentially doing more harm than good by widening social and economic gaps. …”
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City life in the midst of the forest: a Punan hunter-gatherer’s vision of conservation and development por Levang, P., Sitorus, S., Dounias, E.

“…They want to uphold the traditional life of the hunter-gatherer, but at the same time they reject marginalization and seek integration into the larger society. …”
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Summary of baseline household survey results: Rupandehi, Nepal por Center for Environmental and Agricultural Policy Research, Extension and Development

“…Land holdings in the site are small; almost 50% of the surveyed households were marginal farmers (<1 ha) followed by smallholders (1-2 ha) and medium holder farmers (2-5 ha). …”
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An assessment on the role of women in agriculture in Southern Nation Nationality People’s Region: The case of Halaba Special Woreda, Ethiopia por Tegegne, M.

“…However, women’s work in the agricultural activities documented as marginal and they have been considered more as consumers than as producers. …”
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The economics of optimal health and productivity in smallholder livestock systems in developing countries por McDermott, John J., Randolph, Thomas F., Staal, Steven J.

“…Continued development of analytical approaches and decision-support tools for disease control strategies adapted to the special characteristics of these systems will be needed as smallholder systems continue to intensify in areas with good market access, and those in marginal areas face increasing pressures to optimally manage the natural resource base.…”
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How effective are DNA barcodes in the identification of African rainforest trees? por Parmentier, I., Duminil, J., Kuzmina, M., Philippe, M., Thomas, D.W., Duncan, T., Kenfack, D., Chuyong, G.B., Hardy, Olivier J.

“…Combining two markers improves the accuracy of species identification but it would only marginally improve genus identification. Finally, we highlight some limitations of the BLAST algorithm as currently implemented and suggest possible improvements for barcoding applications.…”
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Food and water security under global change: Developing adaptive capacity with a focus on rural Africa por CGIAR Challenge Program on Water and Food

“…To ensure that the right information gets to the right people, proactive investments, policies, and extension services must explicitly target those who are most vulnerable to climate change: subsistence farmers, women, children, and marginalized or less-educated groups. Additional investments of US$2 billion per year in public agricultural R&D, rural roads, female secondary education, irrigation, and access to clean water could significantly reduce the adverse effects of climate change in Sub-Saharan Africa. …”
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Effect of capacity building on production of safe and profitable leafy vegetables among farmers in Ibadan City of Nigeria por Olajide-Taiwo, L. O., Cofie, Olufunke O., Odeleye, O.M.O., Olajide-Taiwo, F. B., Olufunmi, Y., Adebayo, O.S., Alabi, O.O.

“…Due to lack of adequate training among other factors, farmers make sub-optimal profit margins and produce vegetables which are dangerous to human health due to misuse of agrochemicals. …”
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Spatially targeting the distribution of agricultural input stockists in Malawi por Farrow, Andrew, Risinamhodzi, K, Zingore, Shamie, Delve, Robert J.

“…In addition, the improvement in roads might increase the number of potential customers of any particular stockist, with economies of scale allowing the reduction of prices while ensuring a satisfactory profit margin for the stockist. The results of our models imply that Citizens Network for Foreign Affairs may need to train stockists over a wider area to increase the access to inputs of those smallholder farmers with least resources.…”
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Coping with water scarcity in the irrigated lowlands of the lower Amudarya basin, Central Asia por Bekchanov, Maksud, Lamers, John P.A., Martius, C.

“…To prioritize the examined innovations according to their contribution to overall water use reduction and water profitability, ‘marginal water profitability curves’ were developed. …”
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Assessing and understanding food safety risk practices in Nairobi pork food system: A value chain approach por Murungi, M.K., Muinde, P., Akoko, James M., Rushton, Jonathan, Fèvre, Eric M., Domínguez Salas, Paula, Muloi, Dishon M., Häsler, Barbara, Alarcón, Pablo

“…Among retailers, there was a lack of hygiene due to poor infrastructure, scarcity of water and deficient cleaning practices. Poor profit margins and unequal benefit distribution in the lower-end market hinder investments in infrastructure, cold chains and human capacity building and make it difficult to meet feeding and animal health costs. …”
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Understanding the food safety and zoonosis risk practices of the beef, sheep and goat Nairobi food systems using value chain analysis por Alarcón, Pablo, Muinde, P., Karani, M., Akoko, James M., Fèvre, Eric M., Domínguez Salas, Paula, Kiambi, S., Häsler, Barbara, Rushton, Jonathan

“…Data were analysed to produce chain profiles and quantify commodity flows and gross margins. Qualitative analysis identified food safety, zoonosis and VC themes. …”
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Value chain analysis as a tool for assessing food safety risks in the Nairobi pork food system por Muinde, P., Karani, M., Akoko, James M., Rushton, Jonathan, Fèvre, Eric M., Domínguez Salas, Paula, Muloi, Dishon M., Häsler, Barbara, Alarcón, Pablo

“…In the lower end poor profit margins and unequal benefit distribution led to issues on around investments in infrastructure, cold chains and human capacity building plus difficulties with meeting feeding and animal health costs. …”
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Growth and yield response of garlic (Allium sativum l.) varieties to nitrogen fertilizer rates at Gantaafeshum, northern Ethiopia por Abadi, T.

“…The cost benefit analysis indicated that cultivar Felegdaero followed by Bora 1 both at 41kg N ha-1 rates had maximum marginal economic return of 148.24 and 135.84, respectively. …”
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Profitability analysis of commercial chemical and biological crop products among farm households in agroecological zones of West Africa por Bamire, A., Abaidoo, Robert C., Jemo, M., Abdoulaye, Tahirou, Yusuf, A.A., Nwoke, C.

“…The results obtained from budgetary analysis show that gross margin per hectare was highest in the SGS ($ 254) where the emerging inputs were used by 41.7% of the households and lowest in the Sahel ($ 76). …”
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Extreme wildlife declines and concurrent increase in livestock numbers in Kenya: What are the causes? por Ogutu, Joseph O., Piepho, Hans-Peter, Said, Mohammed Yahya, Ojwang, G.O., Njino, L.W., Kifugo, S.C., Wargute, P.W.

“…The proportion of the total “national” wildlife population found in each county increased between 1977 and 2016 substantially only in Taita Taveta and Laikipia but marginally in Garissa and Wajir counties, largely reflecting greater wildlife losses elsewhere. …”
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Is production intensification likely to make farm households food-adequate? A simple food availability analysis across smallholder farming systems from East and West Africa por Ritzema, Randall S., Frelat, Romain, Douxchamps, Sabine, Silvestri, Silvia, Rufino, Mariana C., Herrero, Mario, Giller, Kenneth E., López Ridaura, Santiago, Teufel, Nils, Paul, Birthe K., Wijk, Mark T. van

“…Interventions represented in the crop and livestock options may primarily benefit food-adequate and marginally food-inadequate households, and have little impact on the most food-inadequate households. …”
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