Resultados de búsqueda - Mathematics Research.

Estimating soil organic carbon through loss on ignition: effects of ignition conditions and structural water loss por Hoogsteen, Martine J.J., Lantinga, Egbert A., Bakker, Evert Jan, Groot, Jeroen C.J., Tittonell, Pablo Adrian

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The impact of the Central America free trade agreement on agriculture and the rural sector in five Central American countries: Executive summary por Jansen, Hans G. P., Morley, Samuel, Torero, Máximo

“…The International Food Policy and Research Institute (IFPRI), headquartered in Washington, D.C.and represented by an office in Central America based in RUTA, in San Jose, Costa Rica, and the Sub-regional Economic Commission for Central America (ECLAC) office based in Mexico, have been executing the Project on the Impact of the Central America Free Trade Agreement on Agriculture and the Rural Sector in Five Central American Countries (“the Project”). …”
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Crop and soil organic matter simulation models – A brief review of their basic features and application in sub-Saharan Africa por Nyawira, Sylvia Sarah

“…Although models were initially developed for research purposes, they are increasingly becoming important in many aspects of environmental policies (Manlay et al., 2007). …”
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Multiobjective optimization of the trade-offs in smallholder dairy farming intensification por Mulinge, W.M., Oluoch-Kosura,Willis, Staal, Steven J., Mbogoh, S.

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Attitudes toward risk among small farmers in southern Huila por Arcia, G

“…Timely evaluation of new technology performance is extremely important for international research centers. As part of the evaluation efforts of new bean technology currently in process at CIAT, a mathematical model of the bean farm is being implemented. …”
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Co-limitation toward lower latitudes shapes global forest diversity gradients por liang, Jingjing, Gamarra, Javier G.P., Picard, Nicolas, Zhou, Mo, Pijanowski, Bryan, Jacobs, Douglass F., Reich, Peter B. , Crowther, Thomas W., Nabuurs , Gert-Jan, de-Miguel, Sergio, Peri, Pablo Luis, Hui, Cang

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The emergence of insect resistance in Bt-corn: implication of resistance management information under uncertainty por Linacre, Nicholas A., Thompson, Colin J.

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

“…Fuzzy set theory was suggested as a formal mathematical basis to support Phase 4. The main body of research presented in this thesis deals with the feasibility of fuzzy set theory to interpret and integrate available information. …”
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Modelling and manipulation of aphid-mediated spread of non-persistently transmitted viruses por Carr, J.P., Tungadi, T., Donnelly, R., Bravo-Cazar, A., Rheea, S.-J., Watt, L.G., Mutuku, Josiah M., Wamonje, Francis O., Murphy, A.M., Arinaitwe, W., Pate, A.E., Cunniffe, N.J., Gilligan, C.A.

“…Working mainly with cucumber mosaic virus and several potyviruses, a number of research groups have noted that in some plants, virus infection engenders resistance to aphid settling (sometimes accompanied by emission of deceptively attractive volatiles, that can lead to exploratory penetration by aphids without settling). …”
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Policy options for modernizing the milling sector por Johnson, Michael E.

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Recent deforestation drove the spike in Amazonian fires por Cardil, Adrián, de Miguel, Sergio, Silva, Carlos A., Reich, Peter B., Calkin, David, Brancalion, Pedro H. S., Vibrans, Alexander C., Gamarra, Javier G. P., Zhou, M., Pijanowski, Bryan C., Hui, Cang, Crowther, Thomas W., Hérault, Bruno, Piotto, Daniel, Salas-Eljatib, Christian, North Broadbent, Eben, Almeyda Zambrano, Angelica M., Picard, Nicolas, Aragão, Luiz E.O. C., Bastin, Jean-Francois, Routh, Devin, van den Hoogen, Johan, Peri, Pablo Luis, Liang, Jingjing

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Statistical modeling of phenotypic, pedigree and genomic information for improved genetic evaluation in modern plant breeding : a case study with sorghum por Velazco, Julio Gabriel

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A strategy for technology development for semi-arid sub-Saharan Africa por Sanders, J.H., Shapiro, Barry I., Ramaswamy, S.

“…The strategy evaluation consists of two aspects: a) a review of the successes in the region; and b) analysis with mathematical programming of the potential impacts and constraints to various new technologies tested in the region. …”
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El potencial erosivo de la lluvia en el Uruguay por Koolhaas, M.H

“…For the additional rain-stations, a regression equation with a big correlation was employed, the same as used by the US Agricultural Research Service. The erosion-index values recorded on the iso-erodent map are the location values of the rainfall factor, R, in the universal soil loss equation. …”
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Micromechanical behaviour of apple tissue in tensile and compression tests: Storage conditions and cultivar effect por Alamar, María C., Vanstreels, E., Oey, M. L., Moltó, Enrique, Nicolai, Bart M.

“…The insights gained in this research will be useful when developing mathematical models based upon the mechanical behaviour of apple tissue.…”
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Mechanical Biosensors in Biological and Food Area: a Review por Mendoza-Madrigal, A. G., Chanona-Perez, Jorge, Hernandez-Sanchez, H., Palacios-Gonzalez, E., Calderon-Dominguez, Georgina, Mendez-Mendez, J. V., Blasco, José, Villa-Vargas, L. A.

“…Finally, overall tends in research, development and commercialization of biosensors are described briefly as well as probable areas of development in food biosensors. …”
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Can mussel farming be used as an offset in mitigating eutrophication in the Baltic Sea? por Pettersson, Anna

“…Helcom, the Convention of Helsinki has stated that the abatement targets for phosphorus and nitrogen have still not been reached. Research has shown that mussel farming could function as an abatement technique at a low cost. …”

The cost of managing with less: cutting water subsidies and supplies in Egypt's agriculture por Lofgren, Hans

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Developmental polymorphism and the Brooks-Dyar law por Rivera Trujillo, Hugo Fernando, Vásquez Caballero, Diego Andrés, Ruiz, Carolina, Gómez Valderrama, Juliana Andrea, Borrero Echeverry, Felipe, Rincón Rueda, Diego Fernando

“…Many protocols for research in insect biology and ecology require accurate determination of larval instar. …”
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Estimating income mobility in Colombia using maximum entropy econometrics por Morley, Samuel, Robinson, Sherman, Harris, Rebecca Lee

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