Culiacan, Mexico

Occidente University
Culiacan, Mexico
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Lopez J.C.L.,Occidente University | Noriega J.J.S.,Occidente University | Chavira D.A.G.,Occidente University
International Journal of Information Technology and Decision Making | Year: 2017

Marginalization studies of a population are tools that enable the Mexican government to understand and compare the socio-demographic situation of different regions of the country. The goal is to implement effectively various programs of social or economic development whose aims are to fight against the population's lag, which has affected the quality of life of Mexican citizens. In this paper, a multi-criteria approach for ranking the municipalities of the states of Mexico by their levels of marginalization is proposed, and the case of Jalisco, Mexico, is presented. The approach uses the ELECTRE III method to construct a mediumsized valued outranking relation and then employs a new multi-objective evolutionary algorithm (MOEA) based on the nondominated sorting genetic algorithm (NSGA) II to exploit the relation to obtain a recommendation. The results of this application can be useful for policymakers, planners, academics, investors, and business leaders. This study also contributes to an important, yet relatively new, body of application-based literature that investigates multi-criteria approaches to decision-making that use fuzzy theory and evolutionary multi-objective optimization methods. A comparison of the ranking obtained with the proposed methodology and the stratification created by the National Population Council of Mexico shows that the methodology presented is consistent and yields reliable results for this problem.

Castro E.L.,Occidente University | Ochoa E.A.,Occidente University | Merigolindahl J.M.,University of Chile | Lafuente A.M.G.,University of Barcelona
Annual Conference of the North American Fuzzy Information Processing Society - NAFIPS | Year: 2017

The paper presents the Heavy Ordered Weighted Moving Average (HOWMA) operator. It is a new aggregation operator that takes the advantage of the moving average to solve time series smoothing problems and the heavy OWA to provide more robust formulation and take into account the expectations of the future scenarios. It includes a wide range of particular cases such as the olympic moving aggregation and centered moving aggregation. The study also includes a new application to forecast the exchange rate USD/MXN combining econometric models and the HOWMA operator. © 2016 IEEE.

Arellano L.A.P.,Occidente University | Castro E.L.,Occidente University | Ochoa E.A.,Occidente University | Merigolindahl J.M.,University of Chile
Annual Conference of the North American Fuzzy Information Processing Society - NAFIPS | Year: 2017

The paper presents the prioritized induced probabilistic OWA (PIPOWA) operator. It is a new aggregation operator that unifies the characteristics of the group decision making, the probabilities, the order-induced reordering process and the OWA operator. It includes a wide range of particular cases such as the probabilistic aggregation, the maximum probabilistic aggregation, the minimum probabilistic aggregation, the arithmetic probabilistic aggregation, the step PIPOWA, the general olympic PIPOWA and the centered PIPOWA. The paper also presents an application of the new approach in the selection of dispute resolution problems. © 2016 IEEE.

Best-Aguilera C.,Occidente University | Rodrigo Gomez-Vazquez O.,Occidente University | Elizabeth Guzman-Hernandez A.,Occidente University
Current Oncology Reports | Year: 2017

In acute myeloid leukemia (AML), mutations of the Fms-like tyrosine kinase 3 receptor (FLT3) and its overexpression are related with hyperleukocytosis, higher risk of relapse, and decrease of both disease-free survival and overall survival. It has been suggested that this phenomenon confers proliferative and survival advantages to the malignant blast cells. As a consequence, it is an attractive therapeutic target. As the best treatment strategy for mutated FLT3 AML remains to be defined, the addition of FLT3 inhibitor drugs to chemotherapy or to the bone marrow transplant approach has become a growing strategy. With encouraging results, this combination seems to be an attractive option. Relevant data regarding the current treatment trends on mutated FLT3 AML is reviewed here. © 2017, Springer Science+Business Media New York.

Total protein, lipid and carbohydrate variations for the whole embryonic development were measured every 48 hours in samples of eggs of Macrobrachium occidentale (Holthuis), 1950, a small freshwater caridean. Proteins are the main component followed by lipids and carbohydrate only as minor constituent. Most required energy seems to come from metabolism of fat, which was profusely depleted during the whole of development while proteins seem to be mostly utilized for tissue formation. Details of morphological changes of every developmental step are also presented and a comparison of present results with works of other prawn eggs is discussed. © 2012 The Crustacean Society. Published by Brill NV, Leiden.

Gastelum Chavira D.A.,Occidente University | Leyva Lopez J.C.,Occidente University | Solano Noriega J.J.,Occidente University | Ahumada Valenzuela O.,Occidente University | Alvarez Carrillo P.A.,Occidente University
Applied Soft Computing Journal | Year: 2017

Credit rating is an assessment performed by lenders or financial institutions to determine a person's creditworthiness based on the proposed terms of the loan. Frequently, these institutions use rating models to obtain estimates for the probabilities of default for their clients (companies, organizations, government, and individuals) and to assess the risk of credit portfolios. Numerous statistical and data mining methods are used to develop such models. In this paper, the potential of a multicriteria decision-aiding approach is studied. As a first step, the proposed methodology models the problem as a multicriteria evaluation process with multiple and in some cases, conflicting dimensions, which are integrated to derive sound recommendation for DMs. The second step of the methodology involves building a multicriteria outranking model based on ELECTRE III method. An evolutionary algorithm is used to exploit the outranking model. The methodology is applied to a small-scale financial institution operating in the agricultural sector. We compare loan applications based on their attributes and the credit profile of the customer or credit applicant. Our methodology offers the flexibility of combining heterogeneous information together with the preferences of decision makers (DMs), generating both relative and fixed rules for selecting the best loan applications among new and existing customers, which is an improvement over traditional methods The results reveal that outranking models are well suited to credit rating, providing good ranking results and suitable understanding on the relative importance of the evaluation criteria. © 2017

Ku-Centurion M.,National Autonomous University of Mexico | Gonzalez-Marin B.,National Autonomous University of Mexico | Calderon-Ezquerro M.C.,National Autonomous University of Mexico | Martinez-Valenzuela M.C.,Occidente University | And 2 more authors.
Zebrafish | Year: 2016

Monceren 250 SC is a commercial fungicide with the active ingredient 1-(4-chlorobenzyl)-1-(cyclopentyl)-3-phenylurea, also known as pencycuron. This compound inhibits the growth of fungi as Rhizoctonia solani that invades potato, rice, and cotton or as Pellicularia spp, which contaminates lettuce and tomato crops. In this study, we assessed genotoxicity or DNA damage by the alkaline comet assay in zebrafish blastula-stage embryos exposed to 250 to 1250 μg/mL of the Monceren fungicide or to Bleomycin (0.25 μg/mL) used as a positive control. Additionally, survival and spontaneous movement were monitored in embryos after exposure to different concentrations of fungicide. DNA damage was evaluated using three genotoxicity parameters of the alkaline comet assay: tail length, tail moment, and tail intensity. We found that Monceren 250 SC fungicide induces DNA damage, as shown by significant increases in the three genotoxicity parameters in zebrafish embryos compared with control embryos nonexposed to Monceren. Tail intensity was the more accurate parameter to evaluate genotoxicity levels in zebrafish embryos. At 48 h after exposure to the fungicide, the survival rate of larvae-embryos was reduced to 40-45%. This study shows that the Monceren 250 SC fungicide exerts genotoxic effects in zebrafish during early stages of development. © Copyright 2016, Mary Ann Liebert, Inc. 2016.

Quispe E.C.,Occidente University | Lopez-Fernandez X.M.,University of Vigo | Mendes A.M.S.,University of Coimbra | Marques Cardoso A.J.,University of Coimbra | Palacios J.A.,University of Valle
2011 IEEE International Electric Machines and Drives Conference, IEMDC 2011 | Year: 2011

This paper presents the results of an experimental study on derating of an induction motor under different voltage unbalanced conditions and its comparison with the NEMA standard MG1 voltage unbalance derating graph. During the derating tests the 4 kW squirrel cage induction motor temperature rise was kept constant at the rated value and the windings temperature was measured on-line by means of an accurate digital thermal monitoring system with nine thermocouples positioned in both stator and rotor circuits. The obtained results show that the positive sequence voltage plays an important role in the derating performance of the induction motor under unbalanced conditions, and that the unbalance voltage indices currently used do not allow for accurately measuring this influence. © 2011 IEEE.

Garcia-De LaTorre I.,Occidente University | Garcia-Valladares I.,Occidente University
Current Rheumatology Reports | Year: 2015

The appearance of biologic agents for the treatment of diverse autoimmune diseases in particular rheumatoid arthritis at the end of the 1990s changed the treatment of these patients. With the introduction of new agents in the treatment of rheumatic diseases, we started to notice the presence of new and sometimes unexpected adverse events. It is well recognized that infections are the main concern with these types of treatments; however, the occurrence of autoimmune abnormalities is also seen and its gaining perhaps more attention as the use of these agents is increasing. The first clinical trials of anti-tumor necrosis factor-α (anti-TNFα) inhibitors showed an increase of antinuclear and anti-double-stranded deoxyribonucleic acid (dsDNA) antibodies in patients treated with these agents. In this paper, we review the frequency of these autoantibodies in patients treated with biologic agents, particularly anti-TNF-α inhibitors, and its correlation with autoimmune processes as well as the clinical relevance of such findings. © 2015, Springer Science+Business Media New York.

Snchez-Cano R.,Occidente University | Porras-Montenegro N.,University of Valle
Physica E: Low-Dimensional Systems and Nanostructures | Year: 2010

We have study the heavy-hole exciton states in GaSbGaInAsSbGaSb type-I spherical Quantum Dots, using temperature-dependent static dielectric constant and electron affinity, with a finite height potential barrier, as a function of the quantum dot radius for several values of Indium concentration. Our calculations have been worked out using interpolating methods to find the temperature and Indium concentration dependence of both the dielectric constant and electron affinity, in order to determine the conduction and valence band-offsets in GaSbGaInAsSbGaSb heterostructure by application of the Electron Affinity Rule. We have calculated the exciton binding energy and the corresponding transition energy from the exciton ground state to the heavy-hole level, using a variational procedure within the effective-mass approximation. We have found that the binding energy of the heavy-hole exciton presents changes due to the temperature dependence of the electron affinity and static dielectric constant. However our results for the transition energy from the exciton ground state to the heavy-hole level coincide with those reported in a previous theoretical work, where we had found a very good agreement with photoluminescence and photoreflectance experimental studies at T=12 K in Ga1-xInxAsySb1-y films grown over GaSb substrates by liquid phase epitaxy.

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