Ontologies on the semantic web

As an informational technology, the World Wide Web has enjoyed spectacular success. In just ten years it has transformed the way information is produced, stored, and shared in arenas as diverse as shopping, family photo albums, and high-level academic research. The “Semantic Web” was touted by its developers as equally revolutionary but has not yet achieved anything like the Web’s exponential uptake. This 17 000 word survey article explores why this might be so, from a perspective that bridges both philosophy and IT

Integración de las TIC en la enseñanza universitaria

Se propone a través de la divulgación de esta experiencia en ejecución, describir el estado de desarrollo y evaluación de objetivos propuestos y alcanzados en el Programa de Desarrollo Profesional Docente que brinda la Universidad Nacional de La Matanza. Considerar el impacto en el marco político de una cultura innovadora de la institución, respecto de la incorporación de nuevas tecnologías en la enseñanza universitaria a través de diseños pedagógicos mediados con tic con la finalidad de desarrollar competencias digitales de los docentes que integran el programa. Se detallarán aspectos previos que dieron origen a esta experiencia y la trayectoria histórica del programa; el contexto institucional de innovaciones introducidas a través de nuevas herramientas que se utilizan en las materias transversales de las carreras que brinda la Universidad y la modificación del diseño curricular del programa de Desarrollo Profesional Docente como antesala de la creación de un nuevo programa orientado a la Innovación. Se destaca la experiencia en el marco de los 25 años de la Universidad Nacional de La Matanza y de la I Jornada de Innovación Universitaria que se realizará el 20 de noviembre del corriente año con participación de toda la comunidad académica. Se analizará los resultados al incorporar tecnologías de la información y comunicación y la incidencia de las temáticas desarrolladas en la comunidad virtual creada a los fines del programa, en la concepción del nuevo rol docente en los nuevos escenarios educativos. Por último se considerará el alcance de las experiencias como bisagras en la orientación de nuevos diseños de cursos, programas y espacios que puedan brindarse a la comunidad académica para la transformación de un modelo pedagógico universitario.Fil: Vázquez de Sowa, Myrian Carina. Universidad Nacional de La Matanza; Argentina

A parametric study on the effectiveness of the NSM technique for the flexural strengthening of continuous RC slabs

Recent experimental research has shown that Near Surface Mounted (NSM) technique has high potential to increase the load carrying capacity of continuous reinforced concrete (RC) slabs. This flexural strengthening technique is based on the installation of rectangular cross sectional carbon fibre reinforced polymer (CFRP) laminates into thin slits opened onto the top concrete cover at the intermediate supports and in the bottom concrete cover in the tensile zones. However, the linear-elastic behaviour of the CFRP laminates, and the possibility of occurring premature detachment of the concrete cover that includes these laminates can compromise, not only the flexural strengthening effectiveness of the NSM technique, but also the moment redistribution and the ductility performance of this type of structures. To evaluate the influence of the concrete strength class, the percentage of existing longitudinal tensile reinforcement and the percentage of CFRP on the strengthening effectiveness, moment redistribution capacity and ductility performance, a parametric study was carried out by executing material nonlinear analysis with a FEM-based computer program, which predictive performance was calibrated using the results of a previous experimental program.The study reported in this paper forms part of the research program "PrePAM -Pre-Fabricated Thin Panels Using Advanced Materials For Structural Rehabilitation" supported by FCT, PTDC/ECM/114511/2009. The authors also wish to acknowledge the support provided by the S&P and Casais. The first author further wishes to acknowledge the Erasmus Mobility Program between the University of Minho (Portugal) and the University of Ferrara (Italy), which rendered this international cooperation possible. The third author would like to acknowledge the PhD grant SFRH/BD/69818/2010 supported by FCT

{6,6′-Dimeth­oxy-2,2′-[naphthalene-2,3-diylbis(nitrilo­methyl­idyne)]diphenolato}thio­cyanato­cobalt(III) diethyl ether dichloro­methane solvate

In the title complex, [Co(C26H20N2O4)(NCS)]·C4H10O·CH2Cl2, the penta­coordinated CoIII atom exhibits a distorted square-pyramidal geometry with an N,N′,O,O′ tetra­dentate Schiff base ligand in the basal plane and one thio­cyanate ligand at the apical site. The diethyl ether mol­ecule is located in a cavity provided by four O atoms of the ligand with weak C—H⋯O inter­actions, generating two short O⋯O contact distances [2.766 (3) and 2.745 (3) Å] between the diethyl ether mol­ecule and the ligand. The crystal structure is stabilized by the weak C—H⋯O and C—H⋯N inter­actions and π–π inter­actions between the naphthyl ring system and the benzene ring [centroid–centroid distance = 3.657 (5) Å] and between the two naphthyl ring systems [centroid–centroid distance = 4.305 (2) Å]

Aplicación del Tablero de control y minería de datos como herramienta para el análisis del área de ventas

El presente artículo tiene por objetivo principal determinar cómo las organizaciones mediante la utilización de inteligencia de negocios y aplicando la minería de datos logran tomar decisiones eficientes. El objetivo fundamental de este artículo es trabajar sobre indicadores multivariados que permiten un nivel de análisis mucho más profundo, dado que está conformado por indicadores simples. Para el trabajo se asume como indicador principal «Imagen del Producto», que a su vez estará conformado por otros indicadores como son el de «Funcionalidad», el de «Fiabilidad» y el de «Facilidad de Uso» .Los datos fueron recopilados mediante la utilización de encuestas on line, esto nos permite analizar cada uno de los componentes en forma individual, y luego en forma conjunta para poder obtener el indicador principal «Imagen del Producto». La metodología aplicada fue desarrollar un sistema de información, basado en Indicadores multivariados. La información obtenida mediante las encuestas se analiza posteriormente aplicando minería de datos, a los efectos de poder predecir las variables bajo estudioFil: Salvato, Ernesto José. Universidad Nacional de La Matanza; Argentina.Fil: Avedaño, Marcos. Universidad Nacional de La Matanza; Argentina.Fil: Vázquez de Sowa, Myrian Carina. Universidad Nacional de La Matanza; Argentina.Fil: Rossi, Lina. Universidad Nacional de La Matanza; Argentina

(Meta-)stable reconstructions of the diamond(111) surface: interplay between diamond- and graphite-like bonding

Off-lattice Grand Canonical Monte Carlo simulations of the clean diamond (111) surface, based on the effective many-body Brenner potential, yield the $(2\times1)$ Pandey reconstruction in agreement with \emph{ab-initio} calculations and predict the existence of new meta-stable states, very near in energy, with all surface atoms in three-fold graphite-like bonding. We believe that the long-standing debate on the structural and electronic properties of this surface could be solved by considering this type of carbon-specific configurations.Comment: 4 pages + 4 figures, Phys. Rev. B Rapid Comm., in press (15Apr00). For many additional details (animations, xyz files) see electronic supplement to this paper at http://www.sci.kun.nl/tvs/carbon/meta.htm

Secondary prevention of coronary artery disease in Poland : results from the POLASPIRE survey

Background: The highest priority in preventive cardiology is given to patients with established coronary artery disease (CAD). The aim of the study was to assess the current implementation of the guidelines for secondary prevention in everyday clinical practice by evaluating control of the main risk factors and the cardioprotective medication prescription rates in patients following hospitalization for CAD. Methods: Fourteen departments of cardiology participated in the study. Patients (aged <= 80 years) hospitalized due an acute coronary syndrome or for a myocardial revascularization procedure were recruited and interviewed 6-18 months after the hospitalization. Results: Overall, 947 patients were examined 6-18 months after lwspitalization. The proportion of patients with high blood pressure (>= 140/90 mmHg) was 42%, with high low-density lipoprotein cholesterol (LDL-C >= 1.8 mmol/L) 62%, and with high fasting glucose (>= 7.0 mmol/L) 22%, 17% of participants were smokers and 42% were obese. The proportion of atients taking an antiplatelet agent 6-18 months after hospitalization was 93%, beta-blacker 89%, angiotensin converting enzyme inhibitor or sartan 86%, and a lipid-lowering drug 90%. Only 2.3% patients had controlled all the five main risk factors well (non-smoking, blood pressure < 140190 mmHg, LDL-C < 1.8 mmoIlL and glucose < 7.0 mmoilL, body mass index < 25 kg/m(2)), while 179% had 1 out of 5, 40.9% had 2 out of 5, and 29% had 3 out of 5 risk factors uncontrolled. Conclusions: The documented multicenter survey provides evidence that there is considerable potential for further reductions of cardiovascular risk in CAD patients in Poland. A revision of the state funded cardiac prevention programs seems rational

Secondary prevention of coronary artery disease in Poland. Results from the POLASPIRE survey

Background: The highest priority in preventive cardiology is given to patients with established coronary artery disease (CAD). The aim of the study was to assess the current implementation of the guidelines for secondary prevention in everyday clinical practice by evaluating control of the main risk factors and the cardioprotective medication prescription rates in patients following hospitalization for CAD.Methods: Fourteen departments of cardiology participated in the study. Patients (aged ≤ 80 years) hospitalized due an acute coronary syndrome or for a myocardial revascularization procedure were recruited and interviewed 6–18 months after the hospitalization.Results: Overall, 947 patients were examined 6–18 months after hospitalization. The proportion of patientswith high blood pressure (≥ 140/90 mmHg) was 42%, with high low-density lipoprotein cholesterol (LDL-C ≥ 1.8 mmol/L) 62%, and with high fasting glucose (≥ 7.0 mmol/L) 22%, 17% of participants were smokers and 42% were obese. The proportion of patients taking an antiplatelet agent 6–18 months after hospitalization was 93%, beta-blocker 89%, angiotensin converting enzyme inhibitor or sartan 86%, and a lipid-lowering drug 90%. Only 2.3% patients had controlled all the five main risk factors well (non-smoking, blood pressure &lt; 140/90 mmHg, LDL-C &lt; 1.8 mmol/L and glucose &lt; 7.0 mmol/L, body mass index &lt; 25 kg/m2), while 17.9% had 1 out of 5, 40.9% had 2 out of 5, and 29% had 3 out of 5 risk factors uncontrolled.Conclusions: The documented multicenter survey provides evidence that there is considerable potential for further reductions of cardiovascular risk in CAD patients in Poland. A revision of the state funded cardiac prevention programs seems rational