Televisión digital en 2010: El reto de la interoperabilidad

En este artículo se plantea la situación actual de despliegue de la televisión digital en España desde el punto de vista de la necesaria interoperabilidad que debe haber entre los eslabones de la cadena de valor en un mercado horizontal, con especial atención, por una parte, a la navegación y la presentación de la información de programación y, por otra, a la accesibilidad de las personas con discapacidad. Los patentes problemas de interoperabilidad existentes se han producido a pesar de la existencia de un completo conjunto de disposiciones legales y normas técnicas, lo que sugiere la necesidad además de laboratorios de interoperabilidad que supongan un punto de encuentro entre los actores del sector, con el apoyo de las administraciones públicas (Utray 2009: 211‐225

HERMES-TDT: Herramientas de monitorización y control de servicios de accesibilidad para la TDT

Los servicios de accesibilidad a la televisión digital constituyen un medio para acceder al audio o vídeo de los programas de TV y son necesarios para un número creciente de personas

Massive deworming, nutritional status and learning capacity in school children in a rural community

one hundred and ninety eight children of a rural village school were studied for parasitological variables, nutritional status (anthropometric variables and blood parameters) and assessment of their learning capacity. the study was designed as a baseline study and included both massive anthelminthic treatment and follow-up of the reinfection process. the initial prevalence of infection by soil helminths was: ascaris lumbricoides 36,4 %, trichuris trichiura 34.8%, hookworm 18,2 % and strongyloides stercoralis 4,5 %. 53,1 % of children were under risk of malnutrition and the values of hematocrit and hemoglobin concentration were below normal in 83 % and 55 % respectively. an important deficit in all the learning capacity tests was observed. some relationship was found between these results and infection by parasites.Se estudiaron 198 niños de 5 a 15 años de una comunidad escolar rural en variables parasitológicas, estado nutricional (antropometría y parámetros en sangre) y evaluación de la capacidad de aprendizaje. El estudio se diseño como línea de base e incluyó tratamiento masivo y seguimiento al proceso de reinfección. La prevalencia inicial de helmintos fue: Ascaris lumbricoides 36,4 %, Trichuris trichiura 34,8 %, Uncinaria 18,2 % y Strongyloides stercoralis 4,5 %. El 53,1 % de los niños estaban en riesgo de desnutrición y los valores del hematocrito y de la hemoglobina estaban por debajo de lo normal en el 83 y 55 % respectivamente. Así mismo, se detectó un importante déficit en todas las pruebas de capacidad de aprendizaje. Se encontraron algunas relaciones entre los resultados anteriores y la presencia de parásitos

Massive deworming, nutritional status and learning capacity in school children in a rural community

one hundred and ninety eight children of a rural village school were studied for parasitological variables, nutritional status (anthropometric variables and blood parameters) and assessment of their learning capacity. the study was designed as a baseline study and included both massive anthelminthic treatment and follow-up of the reinfection process. the initial prevalence of infection by soil helminths was: ascaris lumbricoides 36,4 %, trichuris trichiura 34.8%, hookworm 18,2 % and strongyloides stercoralis 4,5 %. 53,1 % of children were under risk of malnutrition and the values of hematocrit and hemoglobin concentration were below normal in 83 % and 55 % respectively. an important deficit in all the learning capacity tests was observed. some relationship was found between these results and infection by parasites.Se estudiaron 198 niños de 5 a 15 años de una comunidad escolar rural en variables parasitológicas, estado nutricional (antropometría y parámetros en sangre) y evaluación de la capacidad de aprendizaje. El estudio se diseño como línea de base e incluyó tratamiento masivo y seguimiento al proceso de reinfección. La prevalencia inicial de helmintos fue: Ascaris lumbricoides 36,4 %, Trichuris trichiura 34,8 %, Uncinaria 18,2 % y Strongyloides stercoralis 4,5 %. El 53,1 % de los niños estaban en riesgo de desnutrición y los valores del hematocrito y de la hemoglobina estaban por debajo de lo normal en el 83 y 55 % respectivamente. Así mismo, se detectó un importante déficit en todas las pruebas de capacidad de aprendizaje. Se encontraron algunas relaciones entre los resultados anteriores y la presencia de parásitos

Optimasi Portofolio Resiko Menggunakan Model Markowitz MVO Dikaitkan dengan Keterbatasan Manusia dalam Memprediksi Masa Depan dalam Perspektif Al-Qur`an

Risk portfolio on modern finance has become increasingly technical, requiring the use of sophisticated mathematical tools in both research and practice. Since companies cannot insure themselves completely against risk, as human incompetence in predicting the future precisely that written in Al-Quran surah Luqman verse 34, they have to manage it to yield an optimal portfolio. The objective here is to minimize the variance among all portfolios, or alternatively, to maximize expected return among all portfolios that has at least a certain expected return. Furthermore, this study focuses on optimizing risk portfolio so called Markowitz MVO (Mean-Variance Optimization). Some theoretical frameworks for analysis are arithmetic mean, geometric mean, variance, covariance, linear programming, and quadratic programming. Moreover, finding a minimum variance portfolio produces a convex quadratic programming, that is minimizing the objective function ðð¥with constraintsð ð 𥠥 ðandð´ð¥ = ð. The outcome of this research is the solution of optimal risk portofolio in some investments that could be finished smoothly using MATLAB R2007b software together with its graphic analysis

Search for heavy resonances decaying to two Higgs bosons in final states containing four b quarks

A search is presented for narrow heavy resonances X decaying into pairs of Higgs bosons (H) in proton-proton collisions collected by the CMS experiment at the LHC at root s = 8 TeV. The data correspond to an integrated luminosity of 19.7 fb(-1). The search considers HH resonances with masses between 1 and 3 TeV, having final states of two b quark pairs. Each Higgs boson is produced with large momentum, and the hadronization products of the pair of b quarks can usually be reconstructed as single large jets. The background from multijet and t (t) over bar events is significantly reduced by applying requirements related to the flavor of the jet, its mass, and its substructure. The signal would be identified as a peak on top of the dijet invariant mass spectrum of the remaining background events. No evidence is observed for such a signal. Upper limits obtained at 95 confidence level for the product of the production cross section and branching fraction sigma(gg -> X) B(X -> HH -> b (b) over barb (b) over bar) range from 10 to 1.5 fb for the mass of X from 1.15 to 2.0 TeV, significantly extending previous searches. For a warped extra dimension theory with amass scale Lambda(R) = 1 TeV, the data exclude radion scalar masses between 1.15 and 1.55 TeV

Canagliflozin and renal outcomes in type 2 diabetes and nephropathy

BACKGROUND Type 2 diabetes mellitus is the leading cause of kidney failure worldwide, but few effective long-term treatments are available. In cardiovascular trials of inhibitors of sodium–glucose cotransporter 2 (SGLT2), exploratory results have suggested that such drugs may improve renal outcomes in patients with type 2 diabetes. METHODS In this double-blind, randomized trial, we assigned patients with type 2 diabetes and albuminuric chronic kidney disease to receive canagliflozin, an oral SGLT2 inhibitor, at a dose of 100 mg daily or placebo. All the patients had an estimated glomerular filtration rate (GFR) of 30 to <90 ml per minute per 1.73 m2 of body-surface area and albuminuria (ratio of albumin [mg] to creatinine [g], >300 to 5000) and were treated with renin–angiotensin system blockade. The primary outcome was a composite of end-stage kidney disease (dialysis, transplantation, or a sustained estimated GFR of <15 ml per minute per 1.73 m2), a doubling of the serum creatinine level, or death from renal or cardiovascular causes. Prespecified secondary outcomes were tested hierarchically. RESULTS The trial was stopped early after a planned interim analysis on the recommendation of the data and safety monitoring committee. At that time, 4401 patients had undergone randomization, with a median follow-up of 2.62 years. The relative risk of the primary outcome was 30% lower in the canagliflozin group than in the placebo group, with event rates of 43.2 and 61.2 per 1000 patient-years, respectively (hazard ratio, 0.70; 95% confidence interval [CI], 0.59 to 0.82; P=0.00001). The relative risk of the renal-specific composite of end-stage kidney disease, a doubling of the creatinine level, or death from renal causes was lower by 34% (hazard ratio, 0.66; 95% CI, 0.53 to 0.81; P<0.001), and the relative risk of end-stage kidney disease was lower by 32% (hazard ratio, 0.68; 95% CI, 0.54 to 0.86; P=0.002). The canagliflozin group also had a lower risk of cardiovascular death, myocardial infarction, or stroke (hazard ratio, 0.80; 95% CI, 0.67 to 0.95; P=0.01) and hospitalization for heart failure (hazard ratio, 0.61; 95% CI, 0.47 to 0.80; P<0.001). There were no significant differences in rates of amputation or fracture. CONCLUSIONS In patients with type 2 diabetes and kidney disease, the risk of kidney failure and cardiovascular events was lower in the canagliflozin group than in the placebo group at a median follow-up of 2.62 years

Search for supersymmetry in events with one lepton and multiple jets in proton-proton collisions at root s=13 TeV

Peer reviewe

Measurement of the top quark mass using charged particles in pp collisions at root s=8 TeV

Peer reviewe