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Search Results: 1 - 10 of 6117 matches for " Arturo Heman Contreras "
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ADAPTACIóN A COLOMBIA DEL O'KELLY WOMEN'S BELIEF SCALES (OWBS)
LEGA,LEONOR; CONTRERAS,ARTURO HEMAN; PAREDES,MARíA TERESA;
Acta Colombiana de Psicología , 2011,
Abstract: the aim of this study was the adaptation to colombia of o'kelly women's beliefs scales (owbs), an instrument that measures the irrational thinking on the traditional female role. the colombian version of the scale was prepared using the reverse translation method and administered to 931 women aged between 17 and 70. exploratory factor analysis with varimax rotation yielded five factors that accounted for 45.57% of the total variance, based on 37 reactive with factor loadings above. 30. as in previous studies, the existence of a dominant factor that explains 30% of the variance is confirmed. the internal consistency of the scale and the derived factors was adequate, with cronbach's alpha coefficients between .79 and .94. in general, these results establish equivalence between the colombian version of the owbs and the original australian version. however, given the theoretical foundation of the scale and the magnitude of the correlation between derived factors, a grouping of items in two main factors is proposed- general irrational beliefs about the traditional female role (made up of four derived factors) and irrational beliefs about the traditional female role in the couple (based on the remaining factor)-. this hypothetical structure should be confirmed empirically in future research.
ADAPTACIóN A COLOMBIA DEL O'KELLY WOMEN'S BELIEF SCALES (OWBS)
Lega, Leonor,Contreras, Arturo Heman,Paredes, María Teresa
Acta Colombiana de Psicología , 2011,
Abstract: The aim of this study was the adaptation to Colombia of O'Kelly Women's Beliefs Scales (OWBS), an instrument that measures the irrational thinking on the traditional female role. The Colombian version of the scale was prepared using the reverse translation method and administered to 931 women aged between 17 and 70. Exploratory factor analysis with Varimax rotation yielded five factors that accounted for 45.57% of the total variance, based on 37 reactive with factor loadings above. 30. As in previous studies, the existence of a dominant factor that explains 30% of the variance is confirmed. The internal consistency of the scale and the derived factors was adequate, with Cronbach's alpha coefficients between .79 and .94. In general, these results establish equivalence between the Colombian version of the OWBS and the original Australian version. However, given the theoretical foundation of the scale and the magnitude of the correlation between derived factors, a grouping of items in two main factors is proposed- General irrational beliefs about the traditional female role (made up of four derived factors) and Irrational beliefs about the traditional female role in the couple (based on the remaining factor)-. This hypothetical structure should be confirmed empirically in future research.
Preliminary factor analysis of the O’Kelly Women Beliefs Scale in a US sample
Arturo Heman Contreras,Leonor Lega,Monica O′Kelly,Mark J. Friedman
Universitas Psychologica , 2012,
Abstract: Using a Rational Emotive Behavior Therapy framework, the O’Kelly Women Beliefs Scale (O’Kelly, in press) was originally constructed in Australia to measure sex-role beliefs women may develop through sex-role stereotyping. Factor analysis of the 92 original items showed that 64 items loaded into a single component that accounted for 18.2% of the variance in a sample of 974 Australian women. The present exploratory study examined the psychometric properties of the OWBS in a sample of 202 women born and living in the US. A varimax rotation with cutoff eigenvalues of 3, showed that 37 items loaded into 3 components which accounted for 58.48% of the variance. The items were subsequently grouped into two factors: Ir- rationality, with a total of 27 items was created by merging component 1 and 3 (Pearson’s r = 0.8 between them), and Rationality, with the 10 items from component 2. Analyses indicated a Cronbach’s alpha of 0.91 for Fac- tor 1, and a Cronbach’s alpha 0.74 for Factor 2. Results indicate that this version of the instrument may be used to evaluate both the rational and irrational content of sex-role beliefs of women born in the US.
Estructura factorial preliminar de la Escala de Creencias de Mujeres de O’Kelly en población mexicana
Arturo Heman Contreras,Margarita Villase?or Ponce,Ana Paulina Alva Jiménez,Lorena García Guerrero
Avances en Psicología Latinoamericana , 2011,
Abstract: La versión mexicana de la australiana O’KellyWomen’s Belief Scales fue administrada a unamuestra de 363 mujeres nacidas y residentes enMéxico. El análisis factorial con rotación varimaxy con autovalor de 3 mostró 36 reactivos de los92 originales en el estudio de Australia, y con el40,138% de la varianza total explicada. Al agruparlos reactivos en dos factores: uno de “racionalidad”,con 14 reactivos, y uno de “irracionalidad”, con22 reactivos, se obtuvo una correlación baja (r =0,119) entre ellos. Estos resultados confirman laequivalencia de la versión mexicana al instrumentooriginal para identificar la presencia de creenciasabsolutistas y rígidas en las mujeres (TREC) sobreel rol femenino tradicional.
Estructura factorial preliminar de la Escala de Creencias de mujeres de O'Kelly en población mexicana
HEMAN CONTRERAS,ARTURO; LEGA,LEONOR; VILLASE?OR PONCE,MARGARITA; ALVA JIMéNEZ,ANA PAULINA; GARCíA GUERRERO,LORENA;
Avances en Psicología Latinoamericana , 2011,
Abstract: a back-translated mexican version of the australian o'kelly women's belief scales was given to a sample of 363 women born and living in mexico. a factor analysis with a varimax rotation with cutoff eigenvalues of 3 showed that 36 out of the 92 items originally developed in the australian study accounted for 40.138% of the variance, and could be ultimately grouped into two factors: one "rationality" factor, with a total of 14 items, and one "irrationality" factor with a total of 22 items, and with a very low pearson's rs (.119) between them. these results support the equivalency of the mexican version to the original instrument used to identify the presence of the rebt's absolutistic, rigid beliefs about traditional feminine roles in women.
Migración, globalización y perspectiva poblacional en la zona indígena Cuicateca, Oaxaca
Arturo Neri Contreras
El Cotidiano , 2004,
Abstract: Desde finales del Siglo XX han sucedido diversas transformaciones en lo económico, político y social, impulsadas por el neoliberalismo y la llamada globalización. La adopción de este modelo ha originado variadas consecuencias en las sociedades que lo han adoptado. Situaciones que han orillado a cada vez más amplios sectores de mexicanos a recurrir a la migración internacional como recurso para obtener empleo e ingresos que les permitan mantener un nivel de vida. En este escenario, la migración adquiere nuevas formas de expresión, rutas, lugares de paso, formas de traslado, motivaciones y, principalmente, lugares de destino. También origina diversos efectos en los lugares de origen de los migrantes. Tal es el caso de la zona indígena cuicateca, en el estado de Oaxaca, donde la migración inició desde la década de los cuarenta del siglo pasado, pero se ha acentuado y cobrado nuevas características bajo los efectos de la globalización.
Factores que influyen en el liderazgo de los gerentes del sector bancario en la ciudad de Cúcuta-Norte de Santander
Pautt Torres,Geli; Contreras M,Carlos Arturo;
Revista EAN , 2012,
Abstract: this paper shows the results of an empirical research, whose purpose is to identify three leadership factors: the leader 's personality, the perception of followers, and the organizational culture in managers of the financial sector in the city of cucuta, norte de santander. finally, those three aspects formerly mentioned have exerted a huge influence upon executive leadership due to the fact that the comparative frequency between the amount of employees and executives that are in agreement is relatively high.
Effectiveness of Selected Microbial Strains on the Growth of Sweet Sorghum  [PDF]
Arturo Díaz-Franco, Oscar Arath Grageda-Cabrera, Mónica Guadalupe Lozano-Contreras
Agricultural Sciences (AS) , 2015, DOI: 10.4236/as.2015.68074
Abstract: Microbial inoculants are of great importance in agro-ecology and plants. However, the symbiotic effectiveness of strains may vary between species or within the same species. Aim of the study was to select experimental microbial strains of national origin, to know its impact on growth of sweet sorghum (Sorghum bicolor) in greenhouse and sterile soil. Five strains of arbuscular mycorrhizal fungi (AMF) and eight rhizobacteria (two of them mutagenized) were compared with non-inoculated plants as control. Variables measured were index of chlorophyll SPAD, plant height, stem diameter (from the middle section), fresh biomass from stem, leaf, panicle, radical, and stem sugars content (°Brix) of every two internodes. The results showed that in the majority of cases, microbial strains exceeded the values of variables compared with control plants. The highest values of chlorophyll (41.8 SPAD), stem diameter (13.5 mm) and total fresh biomass (144.3 g), were recorded with rhizobacterias BS410 (Herbaspirillum sp.), B2709 (Pseudomonas sp.) and B4M4 (Azospirillum sp.), respectively.
Dark forces and atomic electric dipole moments
Heman Gharibnejad,Andrei Derevianko
Physics , 2014, DOI: 10.1103/PhysRevD.91.035007
Abstract: Postulating the existence of a fnite-mass mediator of T,P-odd coupling between atomic electrons and nucleons we consider its effect on permanent electric dipole moment (EDM) of diamagnetic atoms. We present both numerical and analytical analysis for such mediator-induced EDMs and compare it with EDM results for the conventional contact interaction. Based on this analysis we derive limits on coupling strengths and carrier masses from experimental limits on EDM of 199Hg atom.
Subsidence of the Laguna Salada Basin, northeastern Baja California, Mexico, inferred from Milankovitch climatic changes
Juan Contreras,Arturo Martín-Barajas,Juan Carlos Herguera
Geofísica internacional , 2005,
Abstract: Laguna Salada in northern Baja California, Mexico, is an active half-graben product of the trans-tensional tectonics of the Gulf of California. It is sensitive to changes in sediment supply from the Colorado River basin. We present a time series analysis of the upper 980 m of a gamma-ray log from a borehole drilled near the Laguna Salada fault. The power spectrum of the gamma-ray log resembles the spectrum of δ18O Pleistocene isotopic variations from ice cores and from the deep ocean, known to be strongly controlled by Milankovitch cycles. We correlate δ18O stages with silty and sandy intervals in the log. Downcore ages for the last 780 ky are constrained within ~10 kyr. We derive a simple time vs. depth calibration relation for the basin over this time interval. Estimated sedimentation rates at the drill site appear to be constant with a value of ~1.6 mm/yr. We propose that this subsidence rate is produced by the Laguna Salada fault.
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