Lealtad a la práctica deportiva: Una aplicación de la TPB a los servicios públicos para la práctica deportiva

The Theory of Planned Behavior (TPB) has been used in multiple industries and markets to explain the behavior of individuals. In the Colombian sports sector has never been used as a tool to model the behavior of individuals loyal to the sports offered by public institutions.In this study, the TPB model is proposed as a hypothesis to explain the history of loyalty to the sport, an empirical sample of 411 users of the programs of sport and physical activity INDERE (La Estrella, Antioquia) is collected, run a confirmatory factor analysis to ensure the reliability and validity of the measurement model and the hypotheses are tested by structural equation modeling.The study showed that TPB provides a good fit to model the behavior of loyalty to the sport and concluded that Perceived Control is the main antecedent of loyalty to sports such programs.La Teoría del Comportamiento Planificado (TPB) ha sido utilizada en múltiples sectores y mercados para explicar el comportamiento de los individuos. En el sector deportivo colombiano nunca se ha utilizado como herramienta para modelar el comportamiento de lealtad de los individuos hacia la práctica deportiva ofertada por las instituciones públicas.En el presente estudio se propone la TPB como modelo de hipótesis para explicar los antecedentes de la lealtad hacia la práctica deportica, se recoge una muestra empírica de 411 usuarios de los programas de deporte y actividad física del INDERE (La Estrella, Antioquia), se ejecuta un Análisis Factorial Confirmatorio para garantizar la fiabilidad y validez del modelo de medida y se contrastan las hipótesis mediante ecuaciones estructurales.El estudio evidencia que la TPB provee un buen ajuste para modelar el comportamiento de lealtad a la práctica deportiva y concluye que el Control Percibido es el principal antecedente de la lealtad a la práctica deportiva de dichos programas

Water Banks in the West

1 v. (in various pagings) : ill, maps. ; 28 cmhttps://scholar.law.colorado.edu/books_reports_studies/1059/thumbnail.jp

Water Banks in the West

1 v. (in various pagings) : ill, maps. ; 28 cmhttps://scholar.law.colorado.edu/books_reports_studies/1059/thumbnail.jp

Processing–structure–property relations of chemically bonded phosphate ceramic composites

ABSTRACT: Mechanical properties and microstructures of a chemically bonded phosphate ceramic (CBPC) and its composite with 1⋅0 wt% graphite nanoplatelets (GNPs) reinforcement have been investigated. Microstructure was identified by using optical and scanning electron microscopes, X-ray tomography, and X-ray diffraction. In addition, weight loss of the resin at room temperature was studied. The microstructure characterization shows that CBPC is itself a composite with several crystalline (wollastonite and brushite) and amorphous phases. SEM and micro tomography show a homogeneous distribution of crystalline phases. Bending and compression strength of the CBPC was improved by reducing bubbles via preparation in vacuum

Atomistic modeling of nanowires, small-scale fatigue damage in cast magnesium, and materials for MEMS.

Lightweight and miniaturized weapon systems are driving the use of new materials in design such as microscale materials and ultra low-density metallic materials. Reliable design of future weapon components and systems demands a thorough understanding of the deformation modes in these materials that comprise the components and a robust methodology to predict their performance during service or storage. Traditional continuum models of material deformation and failure are not easily extended to these new materials unless microstructural characteristics are included in the formulation. For example, in LIGA Ni and Al-Si thin films, the physical size is on the order of microns, a scale approaching key microstructural features. For a new potential structural material, cast Mg offers a high stiffness-to-weight ratio, but the microstructural heterogeneity at various scales requires a structure-property continuum model. Processes occurring at the nanoscale and microscale develop certain structures that drive material behavior. The objective of the work presented in this report was to understand material characteristics in relation to mechanical properties at the nanoscale and microscale in these promising new material systems. Research was conducted primarily at the University of Colorado at Boulder to employ tightly coupled experimentation and simulation to study damage at various material size scales under monotonic and cyclic loading conditions. Experimental characterization of nano/micro damage will be accomplished by novel techniques such as in-situ environmental scanning electron microscopy (ESEM), 1 MeV transmission electron microscopy (TEM), and atomic force microscopy (AFM). New simulations to support experimental efforts will include modified embedded atom method (MEAM) atomistic simulations at the nanoscale and single crystal micromechanical finite element simulations. This report summarizes the major research and development accomplishments for the LDRD project titled 'Atomistic Modeling of Nanowires, Small-scale Fatigue Damage in Cast Magnesium, and Materials for MEMS'. This project supported a strategic partnership between Sandia National Laboratories and the University of Colorado at Boulder by providing funding for the lead author, Ken Gall, and his students, while he was a member of the University of Colorado faculty

Genotipificación de mycobacterium leprae colombiano para la determinación de patrones de transmisión de la enfermedad

Objetivo Evaluar la variabilidad de VNTR (variable-number tandem repeat) de My­cobacterium leprae de pacientes colombianos con y sin tratamiento previo para identificar posibles fuentes de infección y entender los patrones de transmisión de la enfermedad. Metodología Estudio transversal descriptivo, en donde mediante un muestreo elec­tivo a conveniencia se tomaron 161 biopsias de pacientes multibacilares de lepra, que habían sido solicitadas para diagnóstico y seguimiento de la enfermedad, de las cuales se realizó extracción de ADN de M. leprae  y usando la técnica de PCR para VNTRs de M. leprae estandarizada, se establecieron los genotipos y los diferentes clusters mediante el agrupamiento apareado UPGMA.Resultados En las 161 muestras totales se hallaron 22 genotipos VNTRs diferentes, de las cuales 100 muestras (62,1 %) pertenecían al genotipo único VNTRU, y de los genotipos restantes, los mayoritarios, es decir los que dieron lugar a formación de grupos o clusters fueron VNTR17 (5,6 %),  VNTR20 (4,3 %), VNTR18 (4,3 %), VNTR14 (4,3 %)   y VNTR13 (3,7 %). Conclusión En este estudio se evidencia por análisis de agrupamiento que se pue­den detectar clones con diferente grado de virulencia/agresividad, lo cual implica la necesidad de incrementar varias de las actividades del programa de control que darán como resultado la verdadera disminución de la transmisión del microorga­nismo

Positive psychology of Malaysian students: impacts of engagement, motivation, self-compassion and wellbeing on mental health

Malaysia plays a key role in education of the Asia Pacific, expanding its scholarly output rapidly. However, mental health of Malaysian students is challenging, and their help-seeking is low because of stigma. This study explored the relationships between mental health and positive psychological constructs (academic engagement, motivation, self-compassion, and wellbeing), and evaluated the relative contribution of each positive psychological construct to mental health in Malaysian students. An opportunity sample of 153 students completed the measures regarding these constructs. Correlation, regression, and mediation analyses were conducted. Engagement, amotivation, self-compassion, and wellbeing were associated with, and predicted large variance in mental health. Self-compassion was the strongest independent predictor of mental health among all the positive psychological constructs. Findings can imply the strong links between mental health and positive psychology, especially selfcompassion. Moreover, intervention studies to examine the effects of self-compassion training on mental health of Malaysian students appear to be warranted.N/

Prediagnostic selenium status, selenoprotein gene variants and association with breast cancer risk in a European cohort study

Selenium (Se) may help prevent breast cancer (BC) development. Owing to limited observational evidence, we investigated whether prediagnostic Se status and/or variants in the selenoprotein genes are associated with BC risk in a large European cohort. Se status was assessed by plasma measures of Se and its major circulating proteins, selenoprotein P (SELENOP) and glutathione peroxidase 3 (GPX3), in matched BC case-control pairs (2208 for SELENOP; 1785 for GPX3 and Se) nested within the European Prospective Investigation into Cancer and Nutrition (EPIC). Single nucleotide polymorphisms (SNPs, n = 452) in 55 selenoprotein and Se metabolic pathway genes and an additional 18 variants previously associated with Se concentrations were extracted from existing genotyping data within EPIC for 1564 case-control pairs. Multivariable-adjusted logistic regression models were used to calculate the odds ratios (ORs) and 95 % confidence intervals (CIs) of the association between Se status markers, SNP variants and BC risk. Overall, there was no statistically significant association of Se status with BC risk. However, higher GPX3 activity was associated with lower risk of premenopausal BC (4th versus 1st quartile, OR = 0.54, 95 % CI: 0.30–0.98, Ptrend = 0.013). While none of the genetic variant associations (P ≤ 0.05) retained significance after multiple testing correction, rs1004243 in the SELENOM selenoprotein gene and two SNPs in the related antioxidant TXN2 gene (rs4821494 and rs5750261) were associated with respective lower and higher risks of BC at a significance threshold of P ≤ 0.01. Fourteen SNPs in twelve Se pathway genes (P ≤ 0.01) in interaction with Se status were also associated with BC risk. Higher Se status does not appear to be associated with BC risk, although activity of the selenoenzyme GPX3 may be inversely associated with premenopausal BC risk, and SNPs in the Se pathway alone or in combination with suboptimal Se status may influence BC risk

Impact of cumulative body mass index and cardiometabolic diseases on survival among patients with colorectal and breast cancer: a multi-centre cohort study

BACKGROUND: Body mass index (BMI) and cardiometabolic comorbidities such as cardiovascular disease and type 2 diabetes have been studied as negative prognostic factors in cancer survival, but possible dependencies in the mechanisms underlying these associations remain largely unexplored. We analysed these associations in colorectal and breast cancer patients. METHODS: Based on repeated BMI assessments of cancer-free participants from four European countries in the European Prospective Investigation into Cancer and nutrition (EPIC) study, individual BMI-trajectories reflecting predicted mean BMI between ages 20 to 50 years were estimated using a growth curve model. Participants with incident colorectal or breast cancer after the age of 50 years were included in the survival analysis to study the prognostic effect of mean BMI and cardiometabolic diseases (CMD) prior to cancer. CMD were defined as one or more chronic conditions among stroke, myocardial infarction, and type 2 diabetes. Hazard ratios (HRs) and confidence intervals (CIs) of mean BMI and CMD were derived using multivariable-adjusted Cox proportional hazard regression for mean BMI and CMD separately and both exposures combined, in subgroups of localised and advanced disease. RESULTS: In the total cohort of 159,045 participants, there were 1,045 and 1,620 eligible patients of colorectal and breast cancer. In colorectal cancer patients, a higher BMI (by 1 kg/m2) was associated with a 6% increase in risk of death (95% CI of HR: 1.02-1.10). The HR for CMD was 1.25 (95% CI: 0.97-1.61). The associations for both exposures were stronger in patients with localised colorectal cancer. In breast cancer patients, a higher BMI was associated with a 4% increase in risk of death (95% CI: 1.00-1.08). CMDs were associated with a 46% increase in risk of death (95% CI: 1.01-2.09). The estimates and CIs for BMI remained similar after adjustment for CMD and vice versa. CONCLUSIONS: Our results suggest that cumulative exposure to higher BMI during early to mid-adulthood was associated with poorer survival in patients with breast and colorectal cancer, independent of CMD prior to cancer diagnosis. The association between a CMD diagnosis prior to cancer and survival in patients with breast and colorectal cancer was independent of BMI