Resultados de búsqueda - Linear systems.

Weed Communities in Semiarid Rainfed Croplands of Central Argentina: Comparison between Corn (Zea mays) and Soybean (Glycine max) Crops por Rauber, Ruth Bibiana, Demaria, Manuel Rodolfo, Jobbagy Gampel, Esteban Gabriel, Arroyo, Daniel Nicolas, Poggio, Santiago Luis

“…We compared the frequency and mean cover of functional groups between crops through generalized linear models. Finally, canonical correspondence analysis was carried out to analyze the associations between floristic composition and agronomic variables. …”
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Effect of conventional and no-till practices on solute transport in long term field trials por Okada, Elena, Costa, Jose Luis, Bedmar, Francisco, Barbagelata, Pedro Anibal, Irizar, Alicia Beatriz, Rampoldi, Edgar Ariel

“…The prediction and description of water and solute movement in soils under different tillage systems is essential to the study of pesticide contamination in soils and groundwater quality. …”
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Yield stability and phenotypic plasticity of Populus spp. clones growing in environmental gradients: I-yield stability under field conditions por Alvarez, Javier Alejandro, Cortizo, Silvia Cora, Gyenge, Javier

“…We analyze their growth response in long-term trials under field conditions in a context of high environmental heterogeneity such as the leveed systems of the studied region. Yield stability (volume/ha) of poplar clones was evaluated at eight years old from parameters of Joint Linear Regression Analysis (regression coefficient bi and squared deviations from the mean δij), and with a simplified Relative Distance Plasticity Index (RDPIs) assuming that lower RDPIs implies greater genotype yield stability. …”
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Effect of conventional and no-till practices on solute transport in long term field trials por Okada, Elena, Costa, Jose Luis, Bedmar, Francisco, Barbagelata, Pedro Anibal, Irizar, Alicia Beatriz, Rampoldi, Edgar Ariel

“…The prediction and description of water and solute movement in soils under different tillage systems is essential to the study of pesticide contamination in soils and groundwater quality. …”
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Macroeconomic impacts of climate change mitigation in Latin America: A cross-model comparison por Kober, Tom, Summerton P, Pollitt H, Chewpreecha, U., Ren X, Wills W, Octaviano C, McFarland J, Beach, Robert H., Caig Y, Calderón, S., Fisher-Vanden, Karen, Loboguerrero Rodriguez, Ana María

“…We observe that the consequences of increasingly higher carbon prices, in terms of reduced consumer spending and GDP, tend to be fairly linear with the carbon price in our CGE models. However, the consequences are divergent and nonlinear in our econometric model, that is linked to an energy system model that simulates step-changes in technology substitution. …”
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Application of 2D and 3D image technologies to characterise morphological attributes of grapevine clusters por Tello-Moro, Javier, Cubero, Sergio, Blasco, José, Tardáguila, Javier, Aleixos, Nuria, Ibanez, Javier

“…In addition, we constructed and validated a simple linear regression model for cluster compactness estimation. …”
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Supply and demand for cereals in Pakistan, 2010-2030 por Nazli, Hina, Haider, Syed Hamza, Sheik, Asjad Tariq

“…For projecting household demand, the Almost Ideal Demand System (LA-AIDS) is estimated for eight food items using the data of nationally representative household survey. …”
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Simulation-optimization approach for evaluating the feasibility of managed aquifer recharge in the Samail Lower Catchment, Oman por Ebrahim, Girma Yimer, Jonoski, A., Al-Maktoumi, A., Ahmed, M., Mynett, A.

“…Three groundwater management problems were solved by coupling a simulation model with successive linear programming (SLP) and the nondominated sorting genetic algorithm (NSGA-II) multiobjective genetic algorithm. …”
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Multivariable analysis of the association between antimicrobial use and antimicrobial resistance in Escherichia coli isolated from apparently healthy pigs in Japan por Makita, K., Goto, M., Ozawa, M., Kawanishi, M., Koike, R., Asai, T., Tamura, Y.

“…The objective of this study was to investigate the association between antimicrobial agent use and antimicrobial resistance in Escherichia coli isolated from healthy pigs using data from 2004 to 2007 in the Japanese Veterinary Antimicrobial Resistance Monitoring System (JVARM). Fecal E. coli isolates from 250 pigs (one isolate each from a pig per farm) were examined for antimicrobial resistance. …”
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Association mapping of plant sex and cross-compatibility related traits in white Guinea yam (Dioscorea rotundata Poir.) clones por Asfaw, A., Mondo, J., Agre, A.P., Asiedu, R., Akoroda, M.O.

“…Using Multi-locus random-SNP-effect Mixed Linear Model, we identified three, one, and three SNP markers that were significantly associated with the average crossability rate (ACR), the percentage of high crossability (PHC), and the plant sex, respectively. …”
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Using plant functional attributes to quantify site productivity and growth patterns in mixed forests por Vanclay, J.K., Gillison, A.N., Keenan, R.N.

“…Standard PFA proformas were completed for each plot in January 1995, and the relationship between the PFAs, site productivity and specific growth patters were examined using discriminant analysis, linear regression and standard statistical tests. …”
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Development of a machine for the automatic sorting of pomegranate (Punica granatum) arils based on computer vision por Blasco, José, Cubero, Sergio, Gómez-Sanchís, Juan, Mira, P., Moltó, Enrique

“…The inspection unit relies on a computer vision system. Two image segmentation methods were tested: one uses a threshold on the R/G ratio and the other is a more complex approach based on Bayesian Linear Discriminant Analysis (LDA) in the RGB space. …”
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Understanding Changes in the Hydrometeorological Conditions towards Climate-Resilient Agricultural Interventions in Ethiopia por Satiprasad Sahoo, Ajit Govind

“…The original contribution of this work envisages the importance of the CRA system in water-scarce areas for sustainable agriculture planning and management under changing climatic conditions. …”
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Evaluation of a mechanistic model of potassium uptake by cotton in vermiculitic soil por Brouder, S.M., Cassman, K.G.

“…Regression revealed a linear relationship between the predicted and the observed K uptake (r2 = 0.87) but, across treatments, the model underpredicted accumulation by 43%. …”
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Non-market benefits of forests: a modelling approach for policy intervention in Mozambique por Nhantumbo, I., Dent, J.B., Kowero, G.S., McGregor, M.J.

“…The incorporation of the latter in the model provides the basis of a powerful decision support system for policy interventions.…”
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Body size and testicular traits of tropically-adapted bucks raised under extensive husbandry in Ethiopia por Mekasha, Yoseph, Tegegne, Azage, Abera, A., Rodríguez Martinez, H.

“…SC was well correlated with TW (p < 0.001; r = 0.74) and BW (p < 0.001; r = 0.61), indicating a linear, positive association between BW and TW (p < 0.001; r = 0.51). …”
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How does a beef x dairy calving affect the dairy cow’s following lactation period? por Espinola Alfonso, Roberto

“…The data were analyzed for all traits for first and later parities separately using mixed linear models, with a focus on the estimates of sire breed by dam breed combinations. …”

Quantifying uncertainty on sediment loads using bootstrap confidence intervals por Slaets, J.I.F., Piepho, Hans-Peter, Schmitter, Petra S., Hilger, T., Cadisch, Georg

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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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The Phenology of Coffea arabica var. Esperanza L4A5 Under Different Agroforestry Associations and Fertilization Conditions in the Caribbean Region of Costa Rica por Morales Peña, Victor Hugo, Mora Garcés, Argenis, Virginio Filho, Elias de Melo, Villatoro Sánchez, Mario, Pazmiño Pachay, Willy William, Chanto Ares, Esteban

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