Search Results - Mathematics. Number systems.

Generalised matrix and compartmental population models. by Mwambi, H.G.

“…An alternative method of deriving the reproduction number is also presented. In sub-section 4.5.2 we present a discussion on positive invariance paying attention to the qualitative behaviour of the s-ystem, distinguishing where the system is dissipative. …”
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A mathematical model for the dynamics of banana Xanthomonas Wilt with vertical transmission and inflorescence infection by Nakakawa, J., Mugisha, J.Y.T., Shaw, M.W., Karamura, E.B.

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Development and field-installation of a mathematical simulation model in support of irrigation canal management by Baume, J.P., Sally, Hilmy, Malaterre, P.O., Rey, J.

“…The management of a manually operated irrigation canal with a number of control structures presents a special set of challenges to the system manager, who is often confronted with the problem of identifying and implementing a coordinated operational strategy to meet water delivery targets in the absence of adequate and reliable information on how the system is functioning. …”
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Understanding biological control with entomopathogenic fungi-Insights from a stochastic pest-pathogen model by Djouda, Byliole S., Ndjomatchoua, Frank T., Moukam Kakmeni, F.M., Tchawoua, Clément, Tonnang, Henri E. Z.

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Assessing the impact of non-pharmaceutical interventions (NPI) on the dynamics of COVID-19: A mathematical modelling study of the case of Ethiopia by Ejigu, B.A., Asfaw, M.D., Cavalerie, Lisa, Abebaw, T., Nanyingi, M., Baylis, M.

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Alternative scenarios for improved operations at the main canal level: a study of Fordwah Branch, Chishtian Subdivision using a mathematical flow simulation model. (Thesis) by Litrico, X

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Bio-economic modeling: State-of-the-art and key priorities by Flichman, Guillermo, Allen, Thomas

“…Even though an important number of bio-economic models have been developed and tested on different farming systems and under various agro-ecological conditions (Flichman and Jacquet, 2002; Janssen and van Ittersum, 2007), there is a lack of literature regarding the implicit or explicit assumptions of these models and economic theory, their main ad-vantages compared to conventional economic approaches, and their specific contributions in strengthening collaboration and improving integration between different disciplines.…”
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Decision support systems halve fungicide use compared to calendar-based strategies without increasing disease risk by Lázaro, Elena, Makowski, David, Vicent, Antonio

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What is the monetary value of a clean environment in The Himalayas? by Grossman, Victor

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An eco‑epidemiological model for malaria with Microsporidia MB as bio‑control agent by Mfangnia, C.N.T., Tonnang, H.E.Z., Tsanou, B., Herren, J.K.

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Análisis y evaluación de estrategias tecnológicas y productivas de los sistemas de producción ganaderos predominantes en el centro-sur de Corrientes by Calvi, Mariana

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A climate-based model for tick life cycle: positive semigroup theory on Cauchy problem approach by Ndongo, Mamadou Sadio, Ibrahima Ndiaye, Papa, Gharbi, Mohamed, Rekik, Mourad, BenMiled, Slimane, Darghouth, Mohamed Aziz

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Semi physical growth model of Lobesia botrana under laboratory conditions for Argentina’s Cuyo region by Aguirre Zapata, Estefania, Morales, Humberto, Dagatti, Carla Vanina, Di Sciascio, Fernando, Amicarelli, Adriana N.

“…The previous characteristics facilitate the proposal model’s use by sectors interested in the development of DSS systems. The reported mathematical model has been validated with experimental data for three different temperature conditions.…”
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Multimodel ensembles of wheat growth: many models are better than one by Martre, Pierre, Wallach, Daniel, Asseng, Senthold, Ewert, Frank, Jones, James W., Rötter, Reimund P., Boote, Kenneth J., Ruane, Alex C., Thorburn, Peter J., Cammarano, Davide, Hatfield, Jerry L., Rosenzweig, Cynthia, Aggarwal, Pramod K., Angulo, Carlos, Basso, Bruno, Bertuzzi, Patrick, Biernath, Christian, Brisson, Nadine, Challinor, Andrew J., Doltra, Jordi, Gayler, Sebastian, Goldberg, Richie, Grant, Robert F., Heng, Lee, Hooker, Josh, Hunt, Leslie A., Ingwersen, Joachim, Izaurralde, Roberto César, Kersebaum, Kurt-Christian, Müller, Christoph, Kumar, Soora Naresh, Nendel, Claas, O’Leary, Garry J., Olesen, Jørgen E., Osborne, Tom M., Palosuo, Taru, Priesack, Eckart, Ripoche, Dominique, Semenov, Mikhail A., Shcherbak, Iurii, Steduto, Pasquale, Stöckle, Claudio O., Stratonovitch, Pierre, Streck, Thilo, Supit, Iwan, Tao, Fulu, Travasso, Maria, Waha, Katharina, White, Jeffrey W., Wolf, Joost

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HCID: Global Grid Cell Identification System at Multiple Spatial Resolutions by International Food Policy Research Institute, University of California, Davis

“…HCID is a global grid identification system offering users to refer the location and boundary of a grid cell, available at multiple spatial resolutions, using a single integer number. …”
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Inoculum and disease dynamics of citrus greasy spot caused by Zasmidium citri-griseum in sweet orange in Panama by Aguilera-Cogley, Vidal, Sedano, Maria E., Vicent, Antonio

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Algumas relacoes dasométricas importantes em um bosque secundário tropical by Machado, Sebastao do Amaral, Albertin, Waldemar

“…The number of trees per hectare (NA) decreased rapidly with increase in dbh. …”
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Modeling the dynamics of banana Xanthomonas wilt transmission incorporating infectious force in both asymptomatic and symptomatic stages by Kweyunga, E.H., Tumwine, Jackson K., Karamura, E.B.

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From Resistance to Transformation: A Generic Metric of Resilience Through Viability by Béné, Christophe, Doyen, Luc

“…Those categories are then reframed into a generic metric, using viability analysis—a mathematical formalism which builds on dynamic systems and control theory. …”
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Using fuzzy logic models to reveal farmers motives to integrate livestock, fish, and crops. by 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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