Sistema de ejercicios pliométricos para el desarrollo de la fuerza de pierna en los atletas de voleibol de la EIDE «Pedro Batista Fonseca» de la provincia Granma (Original)

In order to contribute to the development of volleyball, the present work is aimed at the study of leaping on volleyball players at «Pedro Batista Fonseca» Sports Initiation School (EIDE) from Granma province. The investigation offers a study of the application of a series of plyometric exercises in the preparation of the volleyball player and his response regarding the leaping of athletes, using the different tests, achieving a slight increase in leg strength and, consequently, an improvement of leaping.Con el fin de contribuir al desarrollo del voleibol el presente trabajo está encaminado al estudio de la saltabilidad de las voleibolistas de la EIDE «Pedro Batista Fonseca» de la provincia Granma. La investigación brinda un estudio de la aplicación de una serie de ejercicios pliométricos en la preparación del voleibolista y su comportamiento respecto a la saltabilidad, utilizando los diferentes tests, lográndose un ligero incremento en la fuerza de piernas y, por consiguiente, un mejoramiento de la saltabilidad

Estrategia sicopedagógica para mejorar la concentración de la atención en atletas de tiro deportivo (Original)

In order to contribute to improving the psychological preparation of athletes at the base, we undertook the task of carrying out an investigation, which is aimed at improving the concentration of attention in sports shooting athletes in the 13-16-year-old category. Guisa municipality, for which a sample of 6 athletes was taken, representing 50% of the population. The research consists of a psycho-pedagogical strategy to improve the concentration of attention, which will allow to achieve through series of exercises that the athletes arrive with a better psychological preparation to the fundamental competences.Con el fin de contribuir a mejorar la preparación psicológica de los atletas en la base, nos dimos la tarea de realizar una investigación, la cual está encaminada a mejorar la concentración de la atención en atletas de tiro deportivo en la categoría 13-16 años del municipio Guisa, para la cual fue tomada una muestra de 6 atletas, lo que representa el 50% de la población. La investigación consiste en una estrategia sicopedagógica para mejorar la concentración de la atención, la cual permitirá lograr a travésde series de ejercicios, que los atletas lleguen con una mejor preparación sicológica a las competencias fundamentales

Imágenes digitales obtenidas por dron para estimar el rendimiento de la biomasa en un sitio de pastizal del estado de Durango

La adquisición de imágenes de alta resolución mediante drones y su posterior procesamiento proporcionan información valiosa sobre variables biofísicas de vegetación de pastizales. El objetivo de este estudio fue generar un modelo de predicción de la dinámica de la productividad anual de un pastizal semiárido del norte de México mediante la cobertura vegetal estimada en fotografías digitales obtenidas por dron. Se diseño un sistema de muestreo permanente en el predio ganadero La Cieneguilla. Las variables de estudio medidas fueron la producción de biomasa de corte directo como variable dependiente y la cobertura vegetal estimada en imágenes digitales adquiridas por dron como variable independiente. El número de muestras recogidas de ambas variables fue de 640 durante el año 2020.  Con el 50% de los datos se generó el modelo de predicción y con el otro 50% de los datos el modelo de validación, los modelos de regresión ajustados fueron de la forma Y = β0 + β1X + β2X2 con R2 ajustado = 71.64% y 69.90% respectivamente. Esta metodología propuesta ofrece un medio no destructivo y preciso para el monitoreo y evaluación anual de pastizales en áreas secas

Sistema de ejercicios para mejorar el comportamiento técnico- táctico defensivo de los receptores del equipo de Béisbol Sub-23 de la Provincia Granma

Learn and perfect the defensive technique requires hard, considerable work on the part of athletes and coaches, this will only be possible if we conduct a thorough, systematic and individualized work for many years by both, which are taken into has a number of basic suggestions about this action that our way is vitally important: quick reflexes, training, coordination, personal skill, technique and especially to like fielding. These transformations must generate a dynamic that all actors and actors interacting in the local environment, in order to guide and define strategies coherent and viable development to a chord physical and mental well with the actual conditions of the population is open . This exercise system that we propose aims to improve the technical and tactical performance receptor provincial baseball academy Granma for them several years and several criteria authors were used to form this system of exercises that is aimed at the realization of exercises closely linked with the usual work of the receiver.Aprender y perfeccionar la técnica defensiva requiere de un trabajo duro, considerable, por parte de atletas y entrenadores, esto solo será posible si llevamos a cabo un trabajo minucioso, sistemático e individualizado durante muchos años por parte de ambos, en los que se tengan en cuenta un sin número de sugerencias básicas sobre esta acción que a nuestro modo es vitalmente importante: reflejos rápidos, entrenamiento, coordinación, destreza individual, técnica y sobre todo gustarle fildear. Estas transformaciones deben generar una dinámica que esté abierta a todos los agentes y actores que interactúan en el entorno local, con el fin de orientar y definir estrategias de desarrollo coherente y viable que permitan un bienestar físico y mental acorde con las condiciones reales de la población. Este sistema de ejercicios que proponemos tiene como objetivo mejorar el rendimiento técnico-táctico de los receptores de la academia provincial de beisbol de Granma para ellos se utilizaron varios ejercicios y varios criterios de autores para conformar este sistema de ejercicios que va encaminada a la realización de ejercicios que guarden estrecha relación con la habitual labor que realiza el receptor

Sistema de ejercicios para mejorar el comportamiento técnico- táctico defensivo de los receptores del equipo de Béisbol Sub-23 de la Provincia Granma

Learn and perfect the defensive technique requires hard, considerable work on the part of athletes and coaches, this will only be possible if we conduct a thorough, systematic and individualized work for many years by both, which are taken into has a number of basic suggestions about this action that our way is vitally important: quick reflexes, training, coordination, personal skill, technique and especially to like fielding. These transformations must generate a dynamic that all actors and actors interacting in the local environment, in order to guide and define strategies coherent and viable development to a chord physical and mental well with the actual conditions of the population is open . This exercise system that we propose aims to improve the technical and tactical performance receptor provincial baseball academy Granma for them several years and several criteria authors were used to form this system of exercises that is aimed at the realization of exercises closely linked with the usual work of the receiver.Aprender y perfeccionar la técnica defensiva requiere de un trabajo duro, considerable, por parte de atletas y entrenadores, esto solo será posible si llevamos a cabo un trabajo minucioso, sistemático e individualizado durante muchos años por parte de ambos, en los que se tengan en cuenta un sin número de sugerencias básicas sobre esta acción que a nuestro modo es vitalmente importante: reflejos rápidos, entrenamiento, coordinación, destreza individual, técnica y sobre todo gustarle fildear. Estas transformaciones deben generar una dinámica que esté abierta a todos los agentes y actores que interactúan en el entorno local, con el fin de orientar y definir estrategias de desarrollo coherente y viable que permitan un bienestar físico y mental acorde con las condiciones reales de la población. Este sistema de ejercicios que proponemos tiene como objetivo mejorar el rendimiento técnico-táctico de los receptores de la academia provincial de beisbol de Granma para ellos se utilizaron varios ejercicios y varios criterios de autores para conformar este sistema de ejercicios que va encaminada a la realización de ejercicios que guarden estrecha relación con la habitual labor que realiza el receptor

International Nosocomial Infection Control Consortiu (INICC) report, data summary of 43 countries for 2007-2012. Device-associated module

We report the results of an International Nosocomial Infection Control Consortium (INICC) surveillance study from January 2007-December 2012 in 503 intensive care units (ICUs) in Latin America, Asia, Africa, and Europe. During the 6-year study using the Centers for Disease Control and Prevention's (CDC) U.S. National Healthcare Safety Network (NHSN) definitions for device-associated health care–associated infection (DA-HAI), we collected prospective data from 605,310 patients hospitalized in the INICC's ICUs for an aggregate of 3,338,396 days. Although device utilization in the INICC's ICUs was similar to that reported from ICUs in the U.S. in the CDC's NHSN, rates of device-associated nosocomial infection were higher in the ICUs of the INICC hospitals: the pooled rate of central line–associated bloodstream infection in the INICC's ICUs, 4.9 per 1,000 central line days, is nearly 5-fold higher than the 0.9 per 1,000 central line days reported from comparable U.S. ICUs. The overall rate of ventilator-associated pneumonia was also higher (16.8 vs 1.1 per 1,000 ventilator days) as was the rate of catheter-associated urinary tract infection (5.5 vs 1.3 per 1,000 catheter days). Frequencies of resistance of Pseudomonas isolates to amikacin (42.8% vs 10%) and imipenem (42.4% vs 26.1%) and Klebsiella pneumoniae isolates to ceftazidime (71.2% vs 28.8%) and imipenem (19.6% vs 12.8%) were also higher in the INICC's ICUs compared with the ICUs of the CDC's NHSN

Ticagrelor in patients with diabetes and stable coronary artery disease with a history of previous percutaneous coronary intervention (THEMIS-PCI) : a phase 3, placebo-controlled, randomised trial

Background: Patients with stable coronary artery disease and diabetes with previous percutaneous coronary intervention (PCI), particularly those with previous stenting, are at high risk of ischaemic events. These patients are generally treated with aspirin. In this trial, we aimed to investigate if these patients would benefit from treatment with aspirin plus ticagrelor. Methods: The Effect of Ticagrelor on Health Outcomes in diabEtes Mellitus patients Intervention Study (THEMIS) was a phase 3 randomised, double-blinded, placebo-controlled trial, done in 1315 sites in 42 countries. Patients were eligible if 50 years or older, with type 2 diabetes, receiving anti-hyperglycaemic drugs for at least 6 months, with stable coronary artery disease, and one of three other mutually non-exclusive criteria: a history of previous PCI or of coronary artery bypass grafting, or documentation of angiographic stenosis of 50% or more in at least one coronary artery. Eligible patients were randomly assigned (1:1) to either ticagrelor or placebo, by use of an interactive voice-response or web-response system. The THEMIS-PCI trial comprised a prespecified subgroup of patients with previous PCI. The primary efficacy outcome was a composite of cardiovascular death, myocardial infarction, or stroke (measured in the intention-to-treat population). Findings: Between Feb 17, 2014, and May 24, 2016, 11 154 patients (58% of the overall THEMIS trial) with a history of previous PCI were enrolled in the THEMIS-PCI trial. Median follow-up was 3·3 years (IQR 2·8–3·8). In the previous PCI group, fewer patients receiving ticagrelor had a primary efficacy outcome event than in the placebo group (404 [7·3%] of 5558 vs 480 [8·6%] of 5596; HR 0·85 [95% CI 0·74–0·97], p=0·013). The same effect was not observed in patients without PCI (p=0·76, p interaction=0·16). The proportion of patients with cardiovascular death was similar in both treatment groups (174 [3·1%] with ticagrelor vs 183 (3·3%) with placebo; HR 0·96 [95% CI 0·78–1·18], p=0·68), as well as all-cause death (282 [5·1%] vs 323 [5·8%]; 0·88 [0·75–1·03], p=0·11). TIMI major bleeding occurred in 111 (2·0%) of 5536 patients receiving ticagrelor and 62 (1·1%) of 5564 patients receiving placebo (HR 2·03 [95% CI 1·48–2·76], p<0·0001), and fatal bleeding in 6 (0·1%) of 5536 patients with ticagrelor and 6 (0·1%) of 5564 with placebo (1·13 [0·36–3·50], p=0·83). Intracranial haemorrhage occurred in 33 (0·6%) and 31 (0·6%) patients (1·21 [0·74–1·97], p=0·45). Ticagrelor improved net clinical benefit: 519/5558 (9·3%) versus 617/5596 (11·0%), HR=0·85, 95% CI 0·75–0·95, p=0·005, in contrast to patients without PCI where it did not, p interaction=0·012. Benefit was present irrespective of time from most recent PCI. Interpretation: In patients with diabetes, stable coronary artery disease, and previous PCI, ticagrelor added to aspirin reduced cardiovascular death, myocardial infarction, and stroke, although with increased major bleeding. In that large, easily identified population, ticagrelor provided a favourable net clinical benefit (more than in patients without history of PCI). This effect shows that long-term therapy with ticagrelor in addition to aspirin should be considered in patients with diabetes and a history of PCI who have tolerated antiplatelet therapy, have high ischaemic risk, and low bleeding risk