Factores de riesgo ergonómicos que inciden en las lesiones osteomusculares de los entrenadores de un centro médico deportivo de Cartagena - 2019

La actividad laboral que desempeñan los entrenadores en los centros médicos deportivo, gimnasios y/o clubes les genera diversas posibilidades de desarrollar una lesión osteomuscular, las cuales casi siempre se asocian con factores de riesgo ergonómicos derivados de técnicas inadecuadas. Objetivo: Determinar los factores de riesgo ergonómicos que inciden en la aparición de lesiones osteomusculares en los entrenadores del Centro Médico Deportivo de Cartagena. Metodología: estudio descriptivo, transversal, con fase correlacional, cuantitativa en 51 entrenadores de un centro médico deportivo de Cartagena. Los datos fueron recolectados mediante el instrumento “Ergopar”, guardando características de rigor ético y metodológico correspondiente. Resultados: Dentro de la muestra la mayor prevalencia fueron los hombres, cumpliendo jornadas laborales de más de 4 horas en una prevalencia significativa, y las lesiones más frecuentes fueron dolor o molestias a nivel de la zona de los pies y de la región lumbar junto con los factores de riesgo donde las posturas prolongadas, movimientos repetitivos y manipulación- levantamiento de cargas fueron los más relevantes en los trabajadores, encontrándose una asociación significativa entre el factor de riesgo y daños o afección a la salud, mostrando (P-valor=0, 033), OR para las dos variables 3,164 en relación a Molestias – dolor en zona de los pies y p-valor=0,014. OR para las dos variables 0,206 en la zona lumbar. Discusión y Conclusión: Los resultados encontrados, aunque no se pueden comparar debido a la poca evidencia disponible en la literatura, muestran que los entrenadores se exponen constantemente a factores de riesgos relacionados con la postura y el movimiento que les genera lesiones osteomusculares. Es necesario que se establezcan medidas de prevención e intervención desde áreas afines que ayuden a disminuir estas afecciones o daños a la salud que podrían aumentar los indicadores de ausentismo e incapacidades en las empresas.The work carried out by coaches in sports medical centers, gyms and / or clubs generates different possibilities of developing a musculoskeletal injury, which are almost always associated with ergonomic risk factors derived from inadequate techniques. Objective: To determine the ergonomic risk factors that affect the appearance of musculoskeletal injuries in the coaches of the Sports Medical Center of Cartagena. Methodology: descriptive, cross-sectional study, with correlation phase, quantitative in 51 coaches of a sports medical center in Cartagena. The data were collected through the "Ergopar" instrument, keeping characteristics of corresponding ethical and methodological rigor. Results: Within the sample, men were the most prevalent, working days longer than 4 hours in a significant prevalence, and the most frequent injuries were pain or discomfort in the area of the feet and lower back along with risk factors where prolonged postures, repetitive movements and manipulation-lifting loads were the most relevant in workers, found a significant association between the risk factor and damage or health condition, showing (P-value = 0, 033), OR for the two variables 3,164 in relation to discomfort - pain in the foot area and p-value = 0.014. OR for the two variables 0.206 in the lumbar area. Discussion and Conclusion: The results found, although they can not be compared due to the little evidence available in the literature, show that coaches are constantly exposed to risk factors related to posture and movement that generates osteomuscular injuries. It is necessary to establish prevention and intervention measures from related areas that help reduce these conditions or damage to health that could increase the indicators of absenteeism and disability in companies

Production and germination of acorns from the Andean oak Quercus humboldtii (Fagaceae) affected by recurrent fires

Introducción: Disturbios antropogénicos, incluyendo el incremento de los incendios, amenazan la diversidad de los ecosistemas andinos tropicales. Consecuentemente, 60-90 % de los robledales prehispánicos colombianos han desaparecido. Los robledales andinos son dominados por Quercus humboldtii, única Fagaceae suramericana con elevado interés socioeconómico y en biodiversidad. La respuesta reproductiva de esta especie condicionará su capacidad de regeneración y la persistencia de los robledales. Sin embargo, nuestro conocimiento sobre el efecto del fuego en dicha respuesta es incipiente. Objetivo: Evaluar la producción y germinación de bellotas de Q. humboldtii en robledales afectados por incendios recurrentes. Métodos: Durante catorce meses monitoreamos de la producción de bellotas y su germinación en árboles de Q. humboldtii de bosques afectados y no afectados por incendios en Boyacá de Iguaque. También evaluamos la incidencia de los incendios, el tamaño de los árboles, la precipitación, temperatura y otras características locales. Resultados: La producción de bellotas inició 34 meses después del incendio. En los robles quemados la producción de bellotas con desarrollo incompleto (abortos) fue casi nueve veces mayor que la de bellotas maduras. Los árboles con mayor área de cicatriz o número de cicatrices fueron más propensos a producir abortos. Por el contrario, los robles con mayor tamaño suelen producir más bellotas. Las pocas bellotas maduras provenientes de los árboles quemados, presentaron menor tamaño y tasas de germinación en comparación a las bellotas de los árboles no quemados. Los árboles no quemados no produjeron bellotas maduras, pero la producción abortos diez veces inferior que en los árboles quemados. Es factible que Q. humboldtii presente vecería (masting) y los árboles no quemados estén en un ciclo de baja producción. Conclusiones: El fuego, el tamaño del árbol y la vecería están controlando la producción de bellotas en los robledales de Iguaque. Los incendios podrían estar afectando el reclutamiento de la especie debido a una posible limitación en la fuente.Introduction: Anthropogenic disturbances, including wildfires, threaten the diversity of tropical Andean ecosystems. Consequently, 60-90 % of Colombian pre-Hispanic oaks have disappeared. Andean oak forests are dominated by Quercus humboldtii, the only South American species of Fagaceae which has high socioeconomic and biodiversity interests. The reproductive response of this species will condition its regeneration capacity and the persistence of oak forest. However, our knowledge about the effect of fire on this response is incipient. Objective: To evaluate the production and germination of Q. humboldtii acorns in oak forests affected by recurring wildfires. Methods: We monitored the production and germination of acorns from Q. humboldtii trees in fire and non-fire affected forests in the Eastern Andes of Colombia, Boyacá, Serranía de Iguaque, during 14 months. We also evaluated fire incidence, tree size, precipitation, temperature, and other site characteristics. Results: Acorn production began 34 months after the fire. In burned oaks, the production of incompletely developed acorns (abortions) was almost nine times higher than viable acorns, and those with larger scar areas or many scars were more likely to produce abortions. Conversely, oaks of larger size, especially at the crown, tended to produce more acorns. The few viable acorns from fire-affected trees had smaller sizes and lower germination rates compared to those documented for unburned trees in existing literature. The unburned trees did not produce mature acorns, but abortion production was ten times lower than in the burned trees. Therefore, it is feasible that Q. humboldtii presents masting, and the unburned trees are in a low production cycle. Conclusions: Fire, tree size, and masting drive acorn production in the Iguaque oak forests. These could affect the recruitment of the species due to a possible limitation in the source

Effects of asymmetric dimethylarginine on renal arteries in portal hypertension and cirrhosis

AIM. To evaluate the effects of asymmetric dimethylarginine (ADMA) in renal arteries from portal hypertensive and cirrhotic rats. METHODS. Rat renal arteries from Sham (n = 15), pre-hepatic portal hypertension (PPVL; n = 15) and bile duct ligation and excision-induced cirrhosis (BDL; n = 15) were precontracted with norepinephrine, and additional contractions were induced with ADMA (10-6-10-3 mol/L), an endogenous inhibitor of nitric oxide (NO) synthase. Concentration-response curves to acetylcholine (1 × 10-9-3 × 10-6 mol/L) were determined in precontracted renal artery segments with norepinephrine in the absence and in the presence of ADMA. Kidneys were collected to determine the protein expression and activity of dimethylarginine dimethylaminohydrolase (DDAH), an enzyme that catabolizes ADMA. RESULTS. In renal arteries precontracted with norepinephrine, ADMA caused endothelium-dependent contractions. The pD2 values to ADMA were similar in the Sham and PPVL groups (4.20 ± 0.08 and 4.11 ± 0.09, P > 0.05, respectively), but were lower than those of the BDL group (4.79 ± 0.16, P < 0.05). Acetylcholine-induced endothelium-dependent relaxation that did not differ, in terms of pD2 and maximal relaxation, among the 3 groups studied. Treatment with ADMA (3 × 10-4 mol/L) inhibited acetylcholine-induced relaxation in the 3 groups, but the inhibition was higher (P < 0.05) in the BDL group compared with that for the Sham and PPVL groups. The mRNA and protein expression of DDAH-1 were similar in kidneys from the three groups. Conversely, DDAH-2 expression was increased (P < 0.05) in PPVL and further enhanced (P < 0.05) in the BDL group. However, renal DDAH activity was significantly decreased in the BDL group. CONCLUSION. Cirrhosis increased the inhibitory effect of ADMA on basal- and induced-release of NO in renal arteries, and decreased DDAH activity in the kidney

PROJETO AMORA: CAPACITANDO MULHERES EM DIREITOS HUMANOS E CIDADANIA

O Projeto Amora tem como objetivo capacitar mulheres em situação de vulnerabilidade social em direitos humanos e promover a cidadania. Está em seu quinto ano de atuação e é direcionado atualmente às mulheres beneficiárias de programas sociais de transferência de renda, que são assistidas pelos CRAS de Criciúma-SC. Orienta-se pela concepção de extensão que pretende produzir conhecimento por meio do diálogo direto com a comunidade. Os resultados obtidos apontam para a importância de ações de extensão voltadas ao estímulo dacidadania e ao protagonismo das mulheres no contexto atual

Superparamagnetic and light-emitting bifunctional nanocomposites of iron oxide and erbium or thulium doped yttrium orthovanadate

Advances in biomedical research have increased interest in obtaining and studying new bifunctional materials for use in theragnostic. Here we describe in detail the preparation of new magnetic-fluorescent bifunctional (Y0.9Ln0.1VO4/Fe3O4)@SiO2 and [(Y0.9Ln0.1VO4 @SiO2)/Fe3O4)@SiO2] nanocomposites with Ln = Er or Tm. In addition, their magnetic and optical properties were carefully analyzed. The influence of Fe3O4 content and the silica shell thickness on the fluorescent emission in the VIS-NIR region of Y0.9Ln0.1VO4 cores was evaluated as well as their use as display systems with the possibility of directing them by means of external magnetic fields. Samples were prepared using wet chemistry methods involving low temperatures and short reaction times. Y0.9Ln0.1VO4 samples that are not easily oxidizable were prepared by a hydrothermal method, while Fe3O4 sample was synthesized by a coprecipitation process in which the mixture of precursors was treated at very low temperature to avoid oxidation. The powder amalgamation of both Y0.9Ln0.1VO4 and Fe3O4 samples was possible due to the silica polymeric network synthetized by a modified Stöber method. The purity of all samples was ensured by XRD and FTIR techniques. Diffraction profiles of Y0.9Ln0.1VO4 samples show diffraction maxima that can be indexed to a tetragonal symmetry of space group I41/amd, compatible with the zircon structure-type of YVO4 host. All reflections present in the diffraction profile of Fe3O4 sample can be indexed to a cubic symmetry of space group Fd3̅m, characteristic of an inverse spinel structure-type. The amorphous silica incorporation on the samples was also evaluated by TEM images. Studies of the magnetic behavior and luminescent emission intensity of the investigated samples showed their dependence on both, the silica coating thickness, and the contact or not between the luminescent samples and the magnetic powder

Nurses' perceptions of aids and obstacles to the provision of optimal end of life care in ICU

Contains fulltext : 172380.pdf (publisher's version ) (Open Access

Análisis descriptivo de la ley antidumping, aplicado a la industria salmonera chilena

Tesis (Ingeniero Comercial)En estos últimos diez años la globalización de la Economía mundial ha alcanzado niveles de crecimiento que pocos pudieron visualizar en aquel entonces. Hoy las condiciones de intercambio entre los continentes y países está regido por la internacionalización de las industrias y empresas en todo el mundo incentivado principalmente por la proliferación de acuerdos de libre comercio unilaterales y multilaterales entre países y regiones. Como consecuencia de este comercio es natural que comiencen a aparecer distorsiones al libre comercio. Como es el caso de los aranceles aduaneros, distorsiones domésticas, subvenciones, acuerdos de países, cuotas y dumping. De esta manera decidimos estudiar dentro de estas prácticas, la conducta de discriminación de precios entre mercados, conocida como Dumping y aplicarla a un caso real de interés nacional. El propósito de esta tesis es hacer un análisis descriptivo de la metodología legal que mundialmente se utiliza para determinar y cuantificar económicamente el dumping en una industria en particular y establecer una comparación frente a los análisis netamente económicos que existen en esta materia y que no son considerados por el actual sistema legal vigente