1,204 research outputs found

    Cultura ecológica: los jóvenes de secundaria de la ciudad de Monterrey y su área metropolitana.

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    Las contribuciones desde la perspectiva de la psicología social a la investigación de asuntos del medio ambiente son cada vez mayores dado que contemplan cuestiones que tienen que ver con la sociedad, lugar donde se genera la problemática ambiental. El objetivo de este trabajo fue explorar desde la teoría de las representaciones sociales aspectos de la cultura de los estudiantes de tercero de secundaria respecto a cuestiones de medio ambiente y ecología tales como el nivel de conocimiento objetivo, las atribuciones de los jóvenes sobre las fuentes de éste conocimiento y la percepción que tienen en cuanto a las actividades ecológicas que se llevan a cabo en el contexto propio. Los sujetos fueron 555 estudiantes de tercer año de secundaria de tres escuelas públicas de la ciudad de Monterrey y su área metropolitana pertenecientes a tres estratos socioeconómicos diferentes. Los datos del estudio mostraron que los estudiantes de los tres estratos socioeconómicos tienen bajos niveles de conocimiento ambiental y sobre todo, altos niveles de ignorancia referente a las cuestiones ambientales; además, que los estudiantes atribuyen como fuente de sus conocimientos en este tema en primer lugar a la familia, en segundo a la televisión y en tercero a sus maestros; asimismo refieren actividades de cuidado del ambiente principalmente en el hogar, en segundo la escuela y en tercero la colonia. No se encontraron diferencias significativas entre los estratos respecto al nivel de conocimiento y de ignorancia, sin embargo si se encontraron diferencias significativas en las actividades en el contexto familia y escuela

    Actividad física y calidad de vida en adultos mayores

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    En México se espera que entre el año 2000 y el 2050 la proporción de adultos mayores se incremente de 7 a 28%, con una tasa de dependencia de adultos mayores estimada en 50.6% para este último año. Particularmente en el estado de Nuevo León, aun cuando se considera una de las entidades con mayor desarrollo económico en el país, la tasa de dependencia de adultos mayores superará la media nacional a partir del año 2010 (Zúñiga, 2004), de acuerdo con estimaciones de la Conapo. La actividad física de los adultos mayores como una forma de vida saludable tiene gran trascendencia en la sociedad, pues la práctica del ejercicio y el deporte promueve la prevención, el tratamiento y la rehabilitación de algunas enfermedades, lo cual brinda un mejor nivel de salud. La mayoría de las personas tiene alguna idea de los beneficios que ofrece la práctica de la actividad física; sin embargo, se desconoce en qué forma puede relacionarse con la funcionalidad física y social, la vitalidad para llevar a cabo las tareas diarias, y su relación con la alimentación. Por lo anterior, se hace un análisis de la situación actual de la actividad física en el adulto mayor y se presentan algunos de los principales resultados producto de una investigación llevada a cabo en la ciudad de Monterrey

    Sex differences in the aging pattern of renin–angiotensin system serum peptidases

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    Background: Serum peptidases, such as angiotensin-converting enzyme (ACE), angiotensin-converting enzyme-2 (ACE2), neutral endopeptidase (NEP), aminopeptidase N (APN), and aminopeptidase A (APA), are important elements of the renin-angiotensin system (RAS). Dysregulation of these enzymes has been associated with hypertension and cardiovascular risk. In the present study, serum activities of RAS peptidases were analyzed to evaluate the existence of sexual differences, with a possible different pattern in pre- and post-andropausal/post-menopausal participants. Methods: One hundred and eighteen healthy men and women between 41 and 70 years of age (58 women and 60 men) were recruited to participate in the study. Serum RAS-regulating enzymes were measured by spectrofluorimetry. Enzymatic activity was recorded as units of enzyme per milliliter of serum (U/mL). Results: Significantly lower serum APA activity was observed in men with respect to women; no sex differences were detected for ACE, ACE2, NEP, or APN. Significantly lower APA and ACE serum activity were observed in older men compared to older women. In contrast, younger (<55 years) men had significantly higher values of NEP serum activity than younger women. Significantly lower ACE serum activity was detected in older men compared to younger men. In women, significantly higher ACE2 serum activity was observed in older women compared to younger women. Conclusions: These results suggest a differential effect of aging on the activity of RAS enzymes in men and women, especially with respect to the breakpoint of andropausia/menopausia, on the critical serum enzymatic activities of the RAS, which could correlate with sexual differences in cardiovascular risk.This work was supported by a grant from the Basque Government (IT8-11/13), the University of the Basque Country UPV/EHU (UFI 11/44), and the Gangoiti-Barrera Foundation

    Obesity Parameters, Physical Activity, And Physical Fitness are Correlated With Serum Dipeptidyl Peptidase IV Activity In A Healthy Population

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    Objective: To determine whether obesity, physical fitness, and physical activity parameters are associated with the enzymatic activity of serum dipeptidyl peptidase IV (sDPPIV) in a sample of healthy women and men. Design and methods: We have correlated parameters of obesity, physical fitness, and physical activity with sDPPIV activity in 374 healthy subjects (age: 60.7 +/- 6.9 years, body mass index: 26.1 +/- 4.1 kg/m(2)). Enzymatic activity was analyzed using spectrofluorimetry, body composition was assessed by impedanciometry, physical fitness data were obtained using the Senior Fitness Test, and physical activity data were collected by accelerometer. Pearson' s partial correlation analysis was applied to determine the relationship between DPPIV activity and the rest of parameters and significantly correlated variables were introduced into linear regression models to predict DPPIV. Results: Serum DPPIV activity was negatively associated with obesity parameters such as body mass (r = -0.112), body mass index (BMI) (r = -0.147), waist circumference (r = -0.164), waist-to-hip ratio (-0.104), and percentage of fat mass (r = -0.185). Serum DPPIV activity was positively associated with cardiovascular fitness (r = 0.138), total amount of physical activity (r = 0.153), and time spent doing light exercise (r = 0.184). Regression models revealed sex differences in enzyme activity with overall activity higher in women than in men (beta = 0.437, p < 0.001). Further, percent fat mass was an independent negative predictor of DPPIV activity (beta = -0.184, p = 0.001). Serum DPPIV activity was positively predicted based on the amount of time spent doing light physical activity (beta = 0.167, p = 0.001). Conclusion: Our results demonstrate that sDPPIV activity is positively associated with healthier parameters regarding fatness, fitness and physical activity.This work was supported by the Basque Government (GIC12/173: IT811-13) and the University of the Basque Country (UPV/EHU: PPG17/40)

    Eventos estresantes, espiritualidad y consumo de alcohol en participantes del programa de 12 pasos de AA

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    This work sought to determine the association between stressful events, spirituality, program participation and alcohol consumption in participants of the AA 12-step program. The study used a descriptive correlation and predictive method. The population was comprised by members from AA, Mexico. A simple random sampling by clusters was performed, the sample consisted of 72 AA participants with 95% CI. The Spiritual Perspective Scale and the Social Readjustment Rating Scale were used. Stressful events are negatively and significantly related to alcohol consumption (rs = -0.316, p = 0.007), this indicates that the higher the number of stressors, the lower the number of days without alcohol consumption; participation in the program was positively and significantly related to alcohol consumption (rs = 0.776, p = 0.001), which indicates that greater years of participation means greater number of days without alcohol consumption. Spirituality showed no significant relationship (p > 0.05), there is also a significant effect of participation in the program and age on alcohol consumption (R2 = 65.2%, p = 0.001). Participation in the AA program is related to and has an effect on the number of days without alcohol consumption

    Percepción y Realidad del Secuestro en Nuevo León: Una Visión Multidisciplinaria en el Diagnóstico de Rutas, Perfiles y Zonas Detectadas Para su Prevención y Tratamiento

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    Durante el año 2012, un total de 18 académicos y profesionales procedentes de distintas disciplinas y apoyados por la UANL, Waldos y Asociados, la Procuraduría General de Justicia del Gobierno de Nuevo León y el Instituto Dipev, trabajaron específicamente en diversas técnicas metodológicas para analizar el fenómeno del secuestro en la entidad

    Natural History of MYH7-Related Dilated Cardiomyopathy

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    BACKGROUND Variants in myosin heavy chain 7 (MYH7) are responsible for disease in 1% to 5% of patients with dilated cardiomyopathy (DCM); however, the clinical characteristics and natural history of MYH7-related DCM are poorly described. OBJECTIVES We sought to determine the phenotype and prognosis of MYH7-related DCM. We also evaluated the influence of variant location on phenotypic expression. METHODS We studied clinical data from 147 individuals with DCM-causing MYH7 variants (47.6% female; 35.6 +/- 19.2 years) recruited from 29 international centers. RESULTS At initial evaluation, 106 (72.1%) patients had DCM (left ventricular ejection fraction: 34.5% +/- 11.7%). Median follow-up was 4.5 years (IQR: 1.7-8.0 years), and 23.7% of carriers who were initially phenotype-negative developed DCM. Phenotypic expression by 40 and 60 years was 46% and 88%, respectively, with 18 patients (16%) first diagnosed at <18 years of age. Thirty-six percent of patients with DCM met imaging criteria for LV noncompaction. During follow-up, 28% showed left ventricular reverse remodeling. Incidence of adverse cardiac events among patients with DCM at 5 years was 11.6%, with 5 (4.6%) deaths caused by end-stage heart failure (ESHF) and 5 patients (4.6%) requiring heart transplantation. The major ventricular arrhythmia rate was low (1.0% and 2.1% at 5 years in patients with DCM and in those with LVEF of <= 35%, respectively). ESHF and major ventricular arrhythmia were significantly lower compared with LMNA-related DCM and similar to DCM caused by TTN truncating variants. CONCLUSIONS MYH7-related DCM is characterized by early age of onset, high phenotypic expression, low left ventricular reverse remodeling, and frequent progression to ESHF. Heart failure complications predominate over ventricular arrhythmias, which are rare. (C) 2022 The Authors. Published by Elsevier on behalf of the American College of Cardiology Foundation

    RICORS2040 : The need for collaborative research in chronic kidney disease

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    Chronic kidney disease (CKD) is a silent and poorly known killer. The current concept of CKD is relatively young and uptake by the public, physicians and health authorities is not widespread. Physicians still confuse CKD with chronic kidney insufficiency or failure. For the wider public and health authorities, CKD evokes kidney replacement therapy (KRT). In Spain, the prevalence of KRT is 0.13%. Thus health authorities may consider CKD a non-issue: very few persons eventually need KRT and, for those in whom kidneys fail, the problem is 'solved' by dialysis or kidney transplantation. However, KRT is the tip of the iceberg in the burden of CKD. The main burden of CKD is accelerated ageing and premature death. The cut-off points for kidney function and kidney damage indexes that define CKD also mark an increased risk for all-cause premature death. CKD is the most prevalent risk factor for lethal coronavirus disease 2019 (COVID-19) and the factor that most increases the risk of death in COVID-19, after old age. Men and women undergoing KRT still have an annual mortality that is 10- to 100-fold higher than similar-age peers, and life expectancy is shortened by ~40 years for young persons on dialysis and by 15 years for young persons with a functioning kidney graft. CKD is expected to become the fifth greatest global cause of death by 2040 and the second greatest cause of death in Spain before the end of the century, a time when one in four Spaniards will have CKD. However, by 2022, CKD will become the only top-15 global predicted cause of death that is not supported by a dedicated well-funded Centres for Biomedical Research (CIBER) network structure in Spain. Realizing the underestimation of the CKD burden of disease by health authorities, the Decade of the Kidney initiative for 2020-2030 was launched by the American Association of Kidney Patients and the European Kidney Health Alliance. Leading Spanish kidney researchers grouped in the kidney collaborative research network Red de Investigación Renal have now applied for the Redes de Investigación Cooperativa Orientadas a Resultados en Salud (RICORS) call for collaborative research in Spain with the support of the Spanish Society of Nephrology, Federación Nacional de Asociaciones para la Lucha Contra las Enfermedades del Riñón and ONT: RICORS2040 aims to prevent the dire predictions for the global 2040 burden of CKD from becoming true

    Measurement of the top quark forward-backward production asymmetry and the anomalous chromoelectric and chromomagnetic moments in pp collisions at √s = 13 TeV

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    Abstract The parton-level top quark (t) forward-backward asymmetry and the anomalous chromoelectric (d̂ t) and chromomagnetic (μ̂ t) moments have been measured using LHC pp collisions at a center-of-mass energy of 13 TeV, collected in the CMS detector in a data sample corresponding to an integrated luminosity of 35.9 fb−1. The linearized variable AFB(1) is used to approximate the asymmetry. Candidate t t ¯ events decaying to a muon or electron and jets in final states with low and high Lorentz boosts are selected and reconstructed using a fit of the kinematic distributions of the decay products to those expected for t t ¯ final states. The values found for the parameters are AFB(1)=0.048−0.087+0.095(stat)−0.029+0.020(syst),μ̂t=−0.024−0.009+0.013(stat)−0.011+0.016(syst), and a limit is placed on the magnitude of | d̂ t| &lt; 0.03 at 95% confidence level. [Figure not available: see fulltext.
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