995 resultados para 25 hydroxycolecalciferol 26
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Web 3.0 - Future Technology Awareness By Team "Time Management": Alejandro Saucedo - Video & Flyer Stephen Griffith - Website James Crickmere - Research Jack Kanani - Dictionary In this era you cannot afford being tech-illiterate as it is literally everywhere! This is why we did thorough research on the future of technology - Web 3.0! You can find all our resources at http://web3.hackasoton.com
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Nova et Vetera, ISSN 1692 - 5866, Año 8 No. 19 (Agosto 20 - 26 de 2012)
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GIRAS ACADÉMICAS – CONCURSOS INTERNACIONALES – NUEVA NOVELA DE ENRIQUE SANTOS MOLANO – BLOG LÍNEAS VIAJERAS – BLOG POLÍTICO – SEMANA DE LOS EMPRENDEDORES – SALUD MENTAL – POSCONFLICTO – COOPERACIÓN INTERNACIONAL CANADIENSE – CRUZ DE CALATRAVA AL MÉRITO LABORAL – SEDES INSTITUCIONALES – PREMIO CONCURSO JESUUP CUP – NUEVO LIBRO DE CARLOS VILLALBA BUSTILLO
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Conocer lo que motiva al mayor de 25 años a presentarse a las pruebas de acceso a la Universidad. Averiguar si la elección de los estudios universitarios puede deberse, en algunos casos, a motivaciones inconscientes. Saber si los aspirantes tienen suficiente información sobre la carrera elegida y sobre otros tipos de estudios relacionados con ellos. 2 academias escogidas al azar que preparan alumnos para acceso de mayores de 25 años. La población consta de 1665 sujetos. En una primera parte se realiza un estudio descriptivo del estudiante universitario de acceso de mayores de 25 años. En una segunda parte, determina el objetivo, se consultan otras investigaciones y formula el marco teórico. En la investigación empírica se pasa un cuestionario creado al efecto a fin de considerar las variables: motivación consciente, motivación inconsciente e información. Analizándose en función del porcentaje de respuestas en el cuestionario y relacionando los resultados de la primera y segunda parte. Cuestionario con 17 preguntas. Comparación de porcentajes en función de las respuestas al cuestionario. Algunos de los datos más significativos son: 50 por cien es de Barcelona, 50 por cien entre 25 y 29 años, 90 por cien vive en Barcelona, 40 por cien tiene el Bachillerato Elemental, 60 por cien suspende las pruebas de acceso, 30 por cien no se presenta a examen tras matricularse, 40 por cien desea entrar en la Universidad para dejar el trabajo actual y dedicarse a lo que le gusta, 40 por cien por satisfacción personal, 20 por cien para aumentar su nivel económico o laboral, 40 por cien no sabe cuantas horas diarias de clase tendrá. La población no es homogénea. Un 62'2 por ciento tiene indicios de estar sometido a motivaciones inconscientes. Los estudios previos, tipo de trabajo, edad y sexo no influyen a la hora de superar la pruebas de acceso. Sólo el ser natural de Barcelona y residir en ella influyen significativamente.
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Resumen de la revista
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Comentario sobre la celebración en 2005 del 25 aniversario del IES Juan de Padilla de Illescas (Toledo). Se destaca la labor de este centro dentro de la comunidad educativa.
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Crònica del 'X Coloquio de Geografía Rural de España', que va tenir lloc a la Universitat de Lleida, entre els dies 25 i 29 de setembre de 2000, organitzat pel Grup de Treball de Geografia Rural de l’Associació de Geògrafs Espanyols (AGE) i el Departament de Geografia i Sociologia de l'esmentada universitat. L’objectiu bàsic del col·loqui era reflexionar al voltant de les transformacions i permanències que afecten els espais rurals espanyols davant del canvi de segle
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El Consejo de Jefas y Jefes de Estado y de Gobierno de la Unión de Naciones Suramericanas UNASUR, reunidos en la ciudad de Mendoza, República Argentina, en fecha 29 de junio de 2012, en sesión extraordinaria, en concordancia con la Decisión No. 25 de fecha 27 de junio del 2012, a los fines de considerar la situación política en la República del Paraguay, que condujo a la destitución de su Presidente Fernando Lugo.
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Laboratory determined mineral weathering rates need to be normalised to allow their extrapolation to natural systems. The principle normalisation terms used in the literature are mass, and geometric- and BET specific surface area (SSA). The purpose of this study was to determine how dissolution rates normalised to these terms vary with grain size. Different size fractions of anorthite and biotite ranging from 180-150 to 20-10 mu m were dissolved in pH 3, HCl at 25 degrees C in flow through reactors under far from equilibrium conditions. Steady state dissolution rates after 5376 h (anorthite) and 4992 h (biotite) were calculated from Si concentrations and were normalised to initial- and final- mass and geometric-, geometric edge- (biotite), and BET SSA. For anorthite, rates normalised to initial- and final-BET SSA ranged from 0.33 to 2.77 X 10(-10) mol(feldspar) m(-2) s(-1), rates normalised to initial- and final-geometric SSA ranged from 5.74 to 8.88 X 10(-10) mol(feldspar) m(-2) s(-1) and rates normalised to initial- and final-mass ranged from 0.11 to 1.65 mol(feldspar) g(-1) s(-1). For biotite, rates normalised to initial- and final-BET SSA ranged from 1.02 to 2.03 X 10(-12) mol(biotite) m(-2) s(-1), rates normalised to initial- and final-geometric SSA ranged from 3.26 to 16.21 X 10(-12) mol(biotite) m(-2) s(-1), rates normalised to initial- and final-geometric edge SSA ranged from 59.46 to 111.32 x 10(-12) mol(biotite) m(-2) s(-1) and rates normalised to initial- and final-mass ranged from 0.81 to 6.93 X 10(-12) mol(biotite) g(-1) s(-1). For all normalising terms rates varied significantly (p <= 0.05) with grain size. The normalising terms which gave least variation in dissolution rate between grain sizes for anorthite were initial BET SSA and initial- and final-geometric SSA. This is consistent with: (1) dissolution being dominated by the slower dissolving but area dominant non-etched surfaces of the grains and, (2) the walls of etch pits and other dissolution features being relatively unreactive. These steady state normalised dissolution rates are likely to be constant with time. Normalisation to final BET SSA did not give constant ratios across grain size due to a non-uniform distribution of dissolution features. After dissolution coarser grains had a greater density of dissolution features with BET-measurable but unreactive wall surface area than the finer grains. The normalising term which gave the least variation in dissolution rates between grain sizes for biotite was initial BET SSA. Initial- and final-geometric edge SSA and final BET SSA gave the next least varied rates. The basal surfaces dissolved sufficiently rapidly to influence bulk dissolution rate and prevent geometric edge SSA normalised dissolution rates showing the least variation. Simple modelling indicated that biotite grain edges dissolved 71-132 times faster than basal surfaces. In this experiment, initial BET SSA best integrated the different areas and reactivities of the edge and basal surfaces of biotite. Steady state dissolution rates are likely to vary with time as dissolution alters the ratio of edge to basal surface area. Therefore they would be more properly termed pseudo-steady state rates, only appearing constant because the time period over which they were measured (1512 h) was less than the time period over wich they would change significantly. (c) 2006 Elsevier Inc. All rights reserved.
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This paper explores the theoretical developments and subsequent uptake of sequential methodology in clinical studies in the 25 years since Statistics in Medicine was launched. The review examines the contributions which have been made to all four phases into which clinical trials are traditionally classified and highlights major statistical advancements, together with assessing application of the techniques. The vast majority of work has been in the setting of phase III clinical trials and so emphasis will be placed here. Finally, comments are given indicating how the subject area may develop in the future.
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Sixteen years (1994 – 2009) of ozone profiling by ozonesondes at Valentia Meteorological and Geophysical Observatory, Ireland (51.94° N, 10.23° W) along with a co-located MkIV Brewer spectrophotometer for the period 1993–2009 are analyzed. Simple and multiple linear regression methods are used to infer the recent trend, if any, in stratospheric column ozone over the station. The decadal trend from 1994 to 2010 is also calculated from the monthly mean data of Brewer and column ozone data derived from satellite observations. Both of these show a 1.5 % increase per decade during this period with an uncertainty of about ±0.25 %. Monthly mean data for March show a much stronger trend of ~ 4.8 % increase per decade for both ozonesonde and Brewer data. The ozone profile is divided between three vertical slots of 0–15 km, 15–26 km, and 26 km to the top of the atmosphere and a 11-year running average is calculated. Ozone values for the month of March only are observed to increase at each level with a maximum change of +9.2 ± 3.2 % per decade (between years 1994 and 2009) being observed in the vertical region from 15 to 26 km. In the tropospheric region from 0 to 15 km, the trend is positive but with a poor statistical significance. However, for the top level of above 26 km the trend is significantly positive at about 4 % per decade. The March integrated ozonesonde column ozone during this period is found to increase at a rate of ~6.6 % per decade compared with the Brewer and satellite positive trends of ~5 % per decade.