Resultados de búsqueda - "statistical analysis"

Statistical Analysis of Factors Influencing Corrosion in Concrete Structures por Nieves Mendoza, Demetrio, Gaona Tiburcio, Citlalli, Hervert Zamora, H.L., Tobias J., R., Castro Borges, Pedro, Colás Ortíz, Rafael, Zambrano Robledo, Patricia del Carmen, Martínez Villafañe, A., Almeraya Calderón, Facundo

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La innovación organizacional en empresas mexicanas. (The Organizational innovation in Mexican companies) por Garza, J. B., Mendoza Gómez, Joel

“…The present document is a theoretical revision and a descriptive statistical analysis of 4 constructs of the organizational innovation in Mexican companies. …”
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La innovación organizacional en empresas mexicanas. por Garza, J.B.

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Diseños de distribucion libre (Free distribution designs) por Badii Zabeh, Mohammad Hosein, Castillo, J., Wong, A.

“…The stochastic validity of the results is based entirely upon statistical analysis. Distribution free designs include the techniques of choice to be used in situations where assumptions on the type of the distribution are lacking. …”
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Pb(core)/ZnO(shell) nanowires obtained by microwave-assisted method por Solís Pomar, Francisco, Meléndrez, Manuel F., Esparza, Rodrigo, Pérez Tijerina, Eduardo

“…Nanowire length was more than 5 μm and a statistical analysis determined that the shell and core diameters were 21.00 ± 3.00 and 4.00 ± 1.00 nm, respectively. …”
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Electrochemical Noise Analysis of Nickel Based Superalloys in Acid Solutions por Gaona Tiburcio, Citlalli, Aguilar M, M.R, Zambrano Robledo, Patricia del Carmen, Estupiñan López, Francisco Humberto, Cabral Miramontes, José Ángel, Nieves Mendoza, Demetrio, Castillo González, E., Almeraya Calderón, Facundo

“…In this paper we study the corrosion behavior of nickel-based superalloys (Inconel 690, Inconel 718, Incoloy 800, Incoloy 825), compared with commercial steels (carbon Steel 1018 and stainless steel 304), in acid (10% H2SO4 and 10 % CH3COOH) and H2O at room temperature, by electrochemical noise technique, with sampling 1024 points per second. Statistical analysis of electrochemical noise technique yielded LI localization index, the type of corrosion and the noise resistance as well as the corrosion rate. …”
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Using facebook for learning: a case study on the perception of students in higher education por Pérez Morales, María Teresa, Araiza Vázquez, María de Jesús, Doerfer, Claudia

“…Data were obtained by the survey was analyzed and commented upon using the SPPS program with the percentage, frequency, and mean statistical analysis techniques. The results indicated that students will benefit from this interaction tool. …”
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Diseños de distribución libre por Badii, M. H., Castillo, J., Wong, A.

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Dietary risk behaviors among adolescents and young people of Nuevo Leon por Avila Sánchez, María de Jesús, Jáuregui Díaz, José Alfredo

“…With a higher prevalence of presenting at least one eating risk behavior among women compared to men (71.8% vs. 51.3%), youth social class high compared with the low social class (41.1% and 32.5%). Furthermore, statistical analysis showed that young people who have some risk behavior associated with eating disorders come from families with little cohesion among its members. © 2015 Universidad Nacional Autónoma de México, Facultad de Estudios Superiores Iztacala.…”
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A negative pressure device for the treatment of diabetic foot. por Tamez del Bosque, Juan Antonio, Ramírez Aranda, José Manuel, Valenzuela Rendón, Jorge, Salinas Carmona, Mario César, Martínez Martínez, Francisco Javier, Gómez Gómez, Celina

“…The wounds were treated until healed or for one year. A statistical analysis was carried out with parametric tests that compared the evolution of the ulcer and the amputation level in both groups. …”
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Economía, empleo y productividad en las metrópolis de México por Cadena Vargas, Edel, Hoyos Castillo, Guadalupe, Campos Alanís, Juan

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Association between bullying and major depressive disorder in a psychiatric consultation por Perales Blum, Laurencia, Juárez Treviño, Myrthala, Capetillo Ventura, Nelly Cecilia, Rodríguez Gutiérrez, G., Valdés Adamchik, Miguel, Treviño Treviño, J. O., Cáceres Vargas, Mario Hernando

“…Data were captured in excel and the Statistical Package for the Social Sciences (SPSS) program was used for statistical analysis. Results: A very significant association was found between being bullied and presenting depression (X2 = .289, p = .0004). …”
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Modelo estructural para evaluar las competencias del desarrollador de software. Structural model to evaluate the competence of the software developer. por Segoviano Hernández, José, Cantú Mata, José Luis, Penilla Leal, Roberto, Zurita Alarcón, Raúl de Jesús

“…SMART-PLS software was used to perform statistical analysis to obtain an R2 of 0.836 and 0.641 for the variables: Preparation employee-company (Y1) and updated competent staff (Y2), respectively.…”
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Bactericidal Activity, Isolation and Identification of Most Active Compound from 20 Plants used in Traditional Mexican Medicine Against Multidrug-Resistant Bacteria por García Her, D.G., Rivas Morales, Catalina, Rivas Galindo, Verónica Mayela, Rodríguez, J., Galindo Rodríguez, Sergio Arturo, Leos Rivas, Catalina

“…Measures of central tendency were determined by statistical analysis. Results: Ten of these plants showed bactericidal activity against multidrug-resistant bacteria. …”
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A Comparative Study of Corrosion AA6061 and AlSi10Mg Alloys Produced by Extruded and Additive Manufacturing por Estupiñan López, Francisco Humberto, Gaona Tiburcio, Citlalli, Jáquez Muñoz, Jesús Manuel, Zambrano Robledo, Patricia del Carmen, Cabral Miramontes, José Ángel, Nieves Mendoza, Demetrio, Delgado, Anabel D., Flores de los Ríos, Juan Pablo, Almeraya Calderón, Facundo

“…Three different methods filtered EN signals, and the statistical analysis was employed to obtain Rn, the localization index (LI), Kurtosis, skew, and the potential spectral density analysis (PSD). …”
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Chromatic, Phenolic and Antioxidant Properties of <i style='mso-bidi-font-style:normal'>Sorghum bicolor</i> Genotypes por López Contreras, José Juan, Zavala García, Francisco, Urías Orona, Vania, Martínez Ávila, Guillermo Cristian Guadalupe, Rojas, Romeo, Niño Medina, Guillermo

“…Significant differences (p≤0.05) were observed in statistical analysis for both individual and group colour samples in chromatic, phenolics and antioxidant activity evaluations, showing ‘Rox Orange’ genotype and Grayish Orange colour group the highest levels.…”
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Crecimiento y transformación de las policías privadas en México por Jasso López, Lucía Carmina

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Social Factors Contributing to the Development of Allostatic Load in Older Adults: A Correlational- Predictive Study por Morales Jinez, Alejandro, Gallegos Cabriales, Esther Carlota, D'Alonzo, Karen T., Ugarte Esquivel, Alicia, López Rincón, Francisco J., Salazar González, Bertha Cecilia

“…Sample size was estimated to contrast the no relation (R2 = 0) hypotheis in a multiple lineal regression model with 11 covariables, with a significance level of .05, power of 90% (.90), when coefficient of determination (R2) is .15, resulting in a sample of 131 older adults. The statistical analysis included descriptive measures and generalized linear models. …”
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Clostridioides difficile-associated diarrhea in surgical service patients in Mexico por Morfín Otero, Rayo, Petersen Morfin, Santiago, Aguirre Diaz, Sara Alejandra, Pérez Gómez, Héctor Raúl, Garza González, E., Gonzalez Diaz, Esteban E., Esparza Ahumada, Sergio, Velarde Ruiz Velasco, José Antonio, León Garnica, Gerardo, Escobedo Sanchez, Rodrigo, Rodríguez Noriega, Eduardo

“…Materials and methods: A case-control study was conducted that compared the epidemiologic findings and risk factors between surgical patients with PCR-confirmed CDI, surgical patients with diarrhea and a negative PCR test, and surgical patients with no diarrhea. The statistical analysis was carried out using the SPSS version 22.0 program. …”
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Acute negative effect of the surgical type facemask in the maximal oxygen consumption in healthy subjects por Garza Saucedo, David, Morales Elizondo, Dulce Edith, Morales Corral, Pedro Gualberto, Salinas Torres, Víctor Michael

“…These variables were tested in different times as follows: at rest without facemask (RWOFM), after the course navette test without facemask (CNWOFM), at rest with facemask (RWFM), and after the course navette with facemask (CNWFM). Descriptive statistical analysis and a contingency table (chi square, Fisher exact test) were performed with SPSS version 22 (IBM, Armonk, NY, USA). …”
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