Search for the neutral Higgs bosons of the minimal supersymmetric standard model in pp collisions at root s=7 TeV with the ATLAS detector

A search for neutral Higgs bosons of the Minimal Supersymmetric Standard Model (MSSM) is reported. The analysis is based on a sample of proton-proton collisions at a centre-of-mass energy of 7TeV recorded with the ATLAS detector at the Large Hadron Collider. The data were recorded in 2011 and correspond to an integrated luminosity of 4.7 fb-1 to 4.8 fb-1. Higgs boson decays into oppositely-charged muon or τ lepton pairs are considered for final states requiring either the presence or absence of b-jets. No statistically significant excess over the expected background is observed and exclusion limits at the 95% confidence level are derived. The exclusion limits are for the production cross-section of a generic neutral Higgs boson, φ, as a function of the Higgs boson mass and for h/A/H production in the MSSM as a function of the parameters mA and tan β in the mhmax scenario for mA in the range of 90GeV to 500 GeV. Copyright CERN

A EXPERIÊNCIA DE HOSPITALIZAÇÃO EXPLICADA PELA PRÓPRIA CRIANÇA

O presente estudo foi realizado com 20 crianças, em idade escolar, internadas em unidades pediátricas. Teve como objetivos identificar: como as crianças expressam a percepção de sua doença e hospitalização; os recursos de 'que elas dispõem para obter conhecimento sobre sua experiência de doença e hospitalização; e seus interesses e preocupações

Risk factors for development of non-specific musculoskeletal pain in preteens and early adolescents: a prospective 1-year follow-up study

Background Musculoskeletal pain symptoms are common in children and adolescents. These symptoms have a negative impact on children's physical and emotional well-being, but their underlying aetiology and risk factors are still poorly understood. Most of the previous cohort studies were conducted among mid and/or late adolescents and were mainly focused on a specific pain location (e.g. low back pain or neck pain). The purpose of this study is to estimate occurrence of new-onset pain symptoms, in all musculoskeletal locations, in preteens and early adolescents and investigate risk factors for development of these symptoms. Methods 1756 schoolchildren (mean age 10.8) were recruited from schools in southern Finland. Information was extracted as to whether they experienced musculoskeletal pain and a total of 1192 children were identified as free of musculoskeletal pain symptoms. Information was collected on factors which could potentially predict the development of musculoskeletal pain: headache, abdominal pain, sadness/feeling down, day-time tiredness, difficulty in falling asleep, waking up during nights, level of physical activity and hypermobility. These children were followed-up 1-year later and those with new episodes of non-traumatic and traumatic musculoskeletal pain symptoms were identified. Results A total of 1113 schoolchildren (93% of baseline pain-free children) were found at one-year follow-up. New episodes of musculoskeletal pain were reported by 21.5% of these children. Of them 19.4% reported non-traumatic pain and 4.0% reported traumatic pain. The neck was the most commonly reported site with non-traumatic pain, while the lower limb was the most common site for traumatic pain. The independent risk factors for non-traumatic musculoskeletal pain were headache (OR = 1.68, [95% CI 1.16–2.44]) and day-time tiredness (OR = 1.53, [95% CI 1.03–2.26]). The risk factors for traumatic musculoskeletal pain were vigorous exercise (OR = 3.40 [95% CI 1.39–8.31]) and day-time tiredness (OR = 2.97 [95% CI 1.41–6.26]). Conclusion This study highlights that there may be two types of pain entities with both distinct and common aspects of aetiology. For primary prevention purposes, school healthcare professionals should pay attention to preteens and early adolescents practicing vigorous exercise (predictor of traumatic pain), reporting headache (predictor of non-traumatic pain) and reporting day-time tiredness (predictor of both types of pain).BioMed Central Open acces

Información Investigador: Savedra Quintero, Silania Mercedes

Resumen Curricular Ingeniero Forestal 1990, Profesora Ordinario desde 1997. Área de Conocimiento: Manejo de Cuencas, Conservación de Suelos y Control de Erosión. Tutora de trabajos de grado y asesora de informes de pasantía. Jurado de Tesis, Jurado de ASOVAC. Secretaria de Seccional Forestal APULA (1999-2002). Secretaria de Asuntos Académicos Seccional Forestal APULA (2002-2006). Miembro de la Subcomisión electoral de la FCFA. Secretaria del Departamento de Conservación de la Escuela de Ingeniería Forestal. Miembro del grupo de investigación PROMNMAFOR. Representante profesoral ante el Consejo de Escuela. Presidenta de la seccional de APULA-Forestal.Universitario22 - 2005Manejo de Cuencas Hidrográficas, Conservación de Suelos, Control de Erosión y Evaluación de Impacto Ambiental. Turismo ecológico y senderismo temático con énfasis interpretación del paisaje. Ecología rural. Bromatología de pastos. Educación Ambiental.Abril de 2007Ingeniera Forestal+58 274 2401544Facultad de Ciencias Forestales y [email protected]

Forest trees used as firewood for Cocuy Pecayero production in Falcon State in Venezuela.

CONTENIDO Editorial Repercusiones energéticas y económicas del uso de la madera como elemento constructivo para viviendas de interés social en Venezuela. Energetic and economic repercussions of wood as building block for social housing construction in Venezuela. Barrios, Eric; Contreras Miranda, Wilver y Owen de Contreras, Mary E. Valoración económica ambiental del bosque experimental "El Caimital", Municipio Obispos estado Barinas. Environmental economic valuation of the "El Caimital" experimental forest, Obispos Municipality, Barinas State. Fernández, Mary; Rivas Vergara, Francisco y Durán, Mariano J. Producción primaria neta aérea en algunos ecosistemas y estimaciones de biomasa en plantaciones forestales. Aboveground net primary production in some ecosystems and biomass estimation in forest plantations. Salas Rosales, José y Infante Cruz, Angel Especies forestales usadas en la producción de Cocuy Pecayero en el estado Falcón, Venezuela. Forest trees used as firewood for Cocuy Pecayero production in Falcon State in Venezuela. Savedra Q., Silania M.; Padilla, Adriana y Padilla, Delfina Determinación del uso de la tierra bajo un enfoque de cobertura con imagen ETM+ de landsat. Cuenca alta del Río Grita 2006, estado Táchira - Venezuela. Land use determination under cover approach with ETM imagery, The Grita River upper watershed 2006, Táchira State-Venezuela. Pacheco A., Carlos E.; Osorio M., Ramón A.; Méndez C., Ana I.; Flores R., Ernesto J. y López, Juan Y. La participación comunitaria en la prevención y combate de incendios forestales: estrategias que la promueven. The community involvement in the forest fire prevention and fight: promoting strategies. Molina, [email protected]@[email protected] analíticosemestra

Anisotropic electron mobility in fluorene-PPV and fluorene-MEH-PPV.

Polyfluorene copolymers are attractive semiconductor materials, in particular for applications in the organic electronics field. They are versatile to be chemically modified and allow a tuning of the emission to cover the entire visible spectrum. A better understanding of the fundamental aspects of the nature of electronic structure and charge transport properties contribute to the improvement of optoelectronic properties of polymeric materials. Here, we provide a structure?property relationship for models of fluorene-PPV and fluorene-MEH-PPV copolymers, using molecular quantummechanics modelling. The anisotropy is discussed revisitingMulliken?s transitionmomenttheory. Accordingly, our results show that electron mobility occurs preferentially intrachain for both copolymers. Moreover, the interchain electron mobility has the most propensity to occur via ?-stacking interactions

Strategic scenery to integrate communities in watersheds management.

CONTENIDO Ventajas comparativas de Venezuela en el sector forestal. Venezuela's comparative advantages in the forest sector. Luna Lugo, Aníbal Emisión y captura de carbono en los suelos en ecosistemas forestales. Carbon emission and capture in soils of forest ecosystems. Zambrano G., Alexis J.; Franquis, Félix e Infante Cruz, Angel Estudio de las propiedades físicas y mecánicas de la especie pinus oocarpa proveniente de aclareos en la plantación "Emilio Menotti Sposito", de 35 años de edad con fines protectores Mérida, estado Mérida (Venezuela). Study of physical and mechanical properties of pinus oocarpa species from thinnings at a "Emilio Menotti Sposito" 35 year old plantation, for protective objectives, Mérida, state of Mérida (Venezuela). Ramírez, Marilín C.; Garay J., Dario A.; Reyes, Elio C. y Valero, Styles W. Diseño de una vivienda industrializada, plegable y transportable con productos forestales, para disminuir el déficit habitacional venezolano. Design of an industrialized, retractable and transportable house, with forestry products, as a solution for the Venezuelan housing deficit. Contreras Miranda, Wilver; Owen de Contreras, Mary E.; Contreras M., Yoston; Thomson, Edward y Contreras Miranda, Amilkar Base teórico metodológica para la identificación de opciones y propuestas de desarrollo forestal. Theoretical - methodological basis to identify forest development options and proposals. Briceño Méndez, Manuel Necesidad de un modelo de desarrollo económico sustentable. Need for a sustainable economic development model. Díaz Suárez, Eduardo Escenario estratégico para integrar a las comunidades en la conservación de las cuencas. Strategic scenery to integrate communities in watersheds management. Savedra Q., Silania M.; Padilla, Adriana y Plonczak Ratschiller, Miguel Andrés Diseño de un programa bajo ambiente windows para el cálculo de diques en la corrección de torrentes. A program design under windows environment for calculating dikes in torrent control. Vidal, Raúl y Suárez, Dimas Experiencias técnicas en promoción de especies para la conservación de cuencas hidrográficas en Mérida - Venezuela. Araujo, Nelly y Esquerre I., [email protected]@[email protected] analíticosemestra