Resultados de búsqueda - Function (mathematics)

Estimación de la curva de crecimiento en ovinos de pelo colombiano mediante la utilización del modelo Richards por Lenis Valencia, Claudia Patricia, Hernández Herrera, Darwin Yovanny, Noriega Marquez, Jorge Guillermo

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Evaluating the Breed and Production Diversity in Dual Purpose Cattle Systems in Colombia: Opportunities for Its Sustainability por Burgos Paz, William, Pérez Escobar, Yury, Castillo Losada, Eduardo, Rivera Sanchez, Leidy, Falla Tapias, Sergio

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Upscaling Gross Primary Production from Leaf to Canopy for Potato Crop (Solanum tuberosum L.) por Martínez-Maldonado, Fabio Ernesto, Castaño Marín, Angela María, Góez Vinasco, Gerardo Antonio, Ricardo Marin, Fabio

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Modelling the transmission dynamics of Cowdria ruminantium: Supporting the case for endemic stability por O'Callaghan, C.J., Medley, G.F., Peter, T.F., Perry, Brian D.

“…This paper describes the formulation of a transmission dynamic model for C. ruminantium in which the clinical manifestations of infection, namely heartwater disease and death, are the outcomes of interest and are Reported as functions of relative tick challenge. An outline of the model developed and the corresponding mathematical details are presented.…”
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El control biológico en el contexto de un manejo integrado estratégico de insectos plaga por Rincón, Diego F., Espitia, Eduardo M., Hoy, Casey W.

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Multivariate mapping of soil with structural equation modelling por Angelini, Marcos Esteban, Heuvelink, Gerard B.M., Kempen, Bas

“…The objectives of this study were therefore to apply SEM to multi-layer and multivariate soil mapping, and to test SEM functionality for suggestions to improve the modelling. …”
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A Decision Support System for smallholder campesino maize-cattle production systems of the Toluca Valley in Central Mexico. Part I—Integrating biological and socio-economic models... por Castelán-Ortega, O.A., Fawcett, R.H., Arriaga-Jordán, C., Herrero, Mario

“…The DSS successfully reproduced the functioning of the farming system's main components. …”
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Analysis of biological control of cassava pests in Africa: I. Simulation of carbon, nitrogen and water dynamics in cassava por Gutiérrez, A.P., Wermelinger, B., Schulthess, F., Baumgaertner, J.U., Herren, H.R., Ellis, C.K., Yaninek, John S.

“… (2) Analogous relationships between trophic level models at the population and per capita levels were exploited to develop a model that has a common mathematical form across trophic levels enemies. (3) The distributed delay model of Manetsch (1976) was used as the conceptual shell in describing the population dynamics of populations and of organism organ levels (e.g. leaves of plants, ova in animals). (4)The Frazer-Gilbert functional response model from animal ecology was modified to predict rates of photosynthesis and nitrogen and water uptake in plants. (5)Dry-matter partitioning in cassava as affected by solar radiation, temperature, and water and nitrogen stress was simulated and compared with three sets of field data.…”
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Glomalin contribution to soil organic carbon under different pasture managements in a saline soil environment por Banegas, Natalia Romina, Dos Santos, Daniel Andrés, Guerrero Molina, Fernanda, Albanesi de Garay, Ada Susana, Pedraza, Raúl

“…In the meanwhile, we also developed a mathematical procedure to fit continuous power functions to binned soil data. …”
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The Idea of Inclusive Growth and Development Policy por Naqvi, Syed Nawab Haider

“…There is a link that ties these apparently disparate policy objectives; but these links need to be strengthened by deliberate government policy to make them fully functional.2 It is only by achieving these connected objectives simultaneously or in quick succession that efforts to bring prosperity to humanity condemned perpetually to a life of drudgery and poverty can be crowned with suc-cess.3 The greatest minds in economics from Physiocrats to modern times have addressed this problem. …”
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The Oryza bacterial artificial chromosome library resource: construction and analysis of 12 deep-coverage large-insert BAC libraries that represent the 10 genome types of the genus... por Ammiraju, Jetty S.S., Luo, Meizhong, Goicoechea, José L., Wang, Wenming, Kudrna, Dave, Mueller, Christopher, Talag, Jayson, Kim, HyeRan, Sisneros, Nicholas B., Blackmon, Barbara, Fang, Eric, Tomkins, Jeffery B., Brar, Darshan, Mackill, David, McCouch, Susan, Kurata, Nori, Lambert, Georgina, Galbraith, David W., Arumuganathan, K., Rao, Kiran, Walling, Jason G., Gill, Navdeep, Yu, Yeisoo, SanMiguel, Phillip, Soderlund, Carol, Jackson, Scott, Wing, Rod A.

“…With the completion of a finished genome sequence we must now functionally characterize the rice genome by a variety of methods, including comparative genomic analysis between cereal species and within the genus Oryza. …”
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Cafetales agroforestales de la República Dominicana por Somarriba, E., Sánchez, R.O., Peñaló, J.P., Peguero, F., Cerda, R.

“…The farmers' expert knowledge allowed the construction of mathematical functions that describe the relationships between yield and age of coffee, avocado, banana, orange and sour orange, as well as indications of the planting densities of these species in new renovated coffee plantations. …”
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Dominant native and non‐native graminoids differ in key leaf traits irrespective of nutrient availability por Broadbent, Arthur A.D., Firn, Jennifer L., McGree, James M., Borer, Elizabeth T., Buckley, Yvonne M., Harpole, William Stanley, Komatsu, Kimberly J., MacDougall, Andrew S., Andrew S., Orwin, Kate H., Ostle, Nicholas J., Seabloom, Eric William, Bakker, Jonathan D., Biederman, Lori, Caldeira, Maria C., Eisenhauer, Nico, Hagenah, Nicole, Hautier, Yann, Moore, Joslin L., Nogueira, Carla, Peri, Pablo Luis, Risch, Anita C., Roscher, Christiane, Schütz, Martin, Stevens, Carly J.

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Prestationsprognos i drivning utifrån driftsuppföljningsdata por Osmén, Erik

“…There are several good reasons to create mathematical functions that can predict, or forecast, the productivity in logging operations. …”
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Evaluation of nutritional properties of cassava-legumes snacks for domestic consumption: consumer acceptance and willingness to pay in Zambia por Alamu, Emmanuel Oladeji, Maziya-Dixon, Busie, Olaniyan, B., Ntawuruhunga, P., Chikoye, David

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The two faces of sustainability : Fuzzy evaluation of sustainable development. por Cornelissen, T.

“…If expert knowledge is thoughtfully applied to construct both the essential membership functions and fuzzy rule bases, then fuzzy models can draw valid evaluative conclusions with respect to sustainable development. …”
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Design of Production Contracts por Andersson, Åsa, Thorstensson, Frida

“…The main findings are that the Findus pea production contract functions well in terms of motivation; the pea producers have incentives to maximize the integrated profit (Bogetoft & Ballebye Olesen, 2004). …”
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Irrigation water saving strategies in Citrus orchards: Analysis of the combined effects of timing and severity of soil water deficit por Puig-Sirera, Àngela, Provenzano, Giuseppe, González-Altozano, Pablo, Intrigliolo, Diego S., Rallo, Giovanni

“…The knowledge of the crop response to soil water deficit is essential to predict the actual crop water requirements under limited soil water conditions. The mathematical schematization of the crop response under RDI can allow identifying the exact irrigation timing. …”
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Climate change and ecological intensification of agriculture in sub-Saharan Africa – A systems approach to predict maize yield under push-pull technology por Alexandridis, Nikolaos, Feit, Benjamin, Kihara, Job, Luttermoser, Tim, May, Wilhelm, Midega, Charles, Öborn, Ingrid, Poveda, Katja, Sileshi, Gudeta W., Zewdie, Beyene, Clough, Yann, Jonsson, Mattias

“…As climate change effects may be species-and/or context-specific, there is need to elucidate how, in interaction with biotic factors, projected climate conditions are likely to influence future functioning of PPT. Here, we first reviewed how changes in temperature, precipitation and atmospheric CO 2 concentration can influence PPT components (i.e., land use, soils, crops, weeds, diseases, pests and their natural enemies) across sub-Saharan Africa (SSA).We then imposed these anticipated responses on a landscape-scale qualitative mathematical model of maize production under PPT in eastern Africa, to predict cumulative, structure-mediated impacts of climate change on maize yield. …”
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Using fuzzy logic models to reveal farmers motives to integrate livestock, fish, and crops. por Bosma, R.H.

“…Rural extension services have changed paradigm and shifted to more participatory approaches, whereas in common mathematical models of farming systems, farmers’ motivation is solely represented by ‘utility maximisation’. …”
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