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¿Cómo recuperar ríos en Costa Rica? Propuesta metodológica para la recuperación socioambiental de la microcuenca del río Guararí
(2025) Conejo Salas, José Rodrigo; Hasbun Chavarría, Yamil
Los ríos de Costa Rica presentan altos niveles de degradación socioambiental y una persistente incapacidad colectiva para revertir la problemática. Este trabajo final de investigación aplicada propone una metodología participativa y multisectorial para la recuperación socioambiental de la microcuenca del río Guararí, ubicada en Barva y Santa Bárbara de Heredia. Se plantea un prototipo de intervención que articula saberes técnicos y comunitarios, con base en soluciones innovadoras basadas en la naturaleza.
La metodología de investigación combina revisión documental, entrevistas a especialistas, mapeo participativo con actores locales y análisis geoespacial. El estudio caracteriza el contexto histórico y socioambiental de la microcuenca, sistematiza buenas prácticas nacionales e internacionales, y diseña un prototipo estructurado en cinco fases: comprender, idear, probar, monitorear y escalar. Se enfatiza la importancia priorizar proyectos demostrativos de bajo costo, alto impacto y potencialmente escalables. La propuesta metodológica busca ser replicable y adaptable en otras microcuencas con condiciones similares, contribuyendo al desarrollo de estrategias efectivas y sostenibles para la recuperación de ríos.
Segunda capacitación @ simuladores HBSP (19-jul-22)
(2022-07-19) Campos Retana, Roy Alberto; Ávila, Mara
Capacitación sobre Harvard Business Publishing, con Mara Ávila.
Capacitación HBSP con Mara Ávila (22-mar-22)
(2022-03-22) Campos Retana, Roy Alberto
Capacitación sobre Harvard Business Publishing con Mara Ávila.
Aerobic exercise decreases postprandial soluble vascular cell adhesion molecule 1 concentrations in metabolic syndrome
(2014-05) Plaisance, Eric Paul; Taylor, James Kyle; Mahurin, A Jack; Mestek, Michael L.; Moncada Jiménez, José; Fisher, Gordon; Roy, Jane; Mahan, Luke; Grandjean, Peter Walter
Purpose: The purpose of this investigation was to examine the effects of a single session of aerobic exercise conducted before and after 6 wks of niacin on postprandial concentrations of soluble vascular adhesion molecules in men with metabolic syndrome. Methods: Twelve men (46 ± 2 yrs; BMI = 34.6 ± 0.8 kg·m2; % fat = 36 ± 2; VO2max = 27.5 ± 1.7 mL·min-1·kg-1; waist circumference = 109.5 ± 2.2 cm; HDL-C = 39 ± 8 mg·dL-1; triglycerides = 300 ± 44 mg·dL-1; HOMA score = 4.4 ± 0.8) completed each of four conditions prior to ingesting a HFM (1000 kcals, 100 g fat, 18g CHO, 3 g protein): No exercise Control; Exercise - treadmill walking (500 kcal energy expenditure at 65% VO2max) performed one hour prior to a HFM; Niacin - 6 weeks of niacin (1500 mg·d-1) and; Niacin + Exercise. Blood samples were obtained prior to and at two-hour intervals for eight hours following the HFM for each condition. Soluble vascular adhesion molecule 1 (sVCAM1) and intercellular adhesion molecule 1 (sICAM1) concentrations were measured and total (AUCT) and incremental (AUCI) areas under the curve were calculated. Results: Exercise decreased sVCAM1 AUCI by 2-fold compared to Control (from 1256.5 ± 146.7 to 629.1 ± 98.4 ng·mL-1 × 8 hr; p< 0.05); whereas, niacin produced a 25% reduction that did not meet statistical significance. Combining exercise with niacin reduced sVCAM1 AUCI by a similar extent to exercise alone (559.0 ± 108.5 versus 629.1 ± 98.4 ng·mL-1 × 8 hr). Postprandial sICAM1 was not affected by any of the conditions or the HFM. Conclusions: Aerobic exercise reduces postprandial sVCAM1 concentrations with no further exercise-induced reductions observed after 6 weeks of niacin therapy. sICAM1 expression appears refractory to short-term niacin therapy and responses to single sessions of moderate-intensity exercise.
Body fat predicts forced vital capacity in college males
(2003) Moncada Jiménez, José
The study was designed to determine how body fat percentage (BF%), body fat distribution (BFD), and abdominal muscular endurance (AME) relate to pul-monary function (PF) as measured by the forced vital capacity (FVC), the forced expiratory volume in 1 s (FEV1), the FEV1/FVC ratio, and the maximal inspiratory pressure (MIP) among college (M= 22.82,SD = 2.45 yr) males (N= 60). Multiple regression analyses were calculated. A ceiling effect for AME was found; hence, AME was not used as a predictor variable in the multiple regression analyses. The distribution of MIP values was leptokurtic; therefore, MIP was excluded from the analysis. Body weight (p =.00) and body height (p=.03) were positively related to FVC. BF% was inversely (p=.05) related to FVC but was unrelated to FEV1 or FEV1/FVC. The predictor variable BFD was unrelated to FVC, FEV 1, or FEV 1 /FVC. In conclusion, increased proportions of fat were inversely related to FVC in college males.