Análisis de una política universitaria : El caso del ProProE en la FCNyM de la UNLP

Este trabajo apunta al análisis del programa denominado ProProE (Programa de Promoción de Egreso de las Carreras de Grado), como política pública, implementado en la Facultad de Ciencias Naturales y Museo de la Universidad Nacional de La Plata con el objetivo de acompañar hasta la graduación a los alumnos avanzados que han tenido demoras o detenimientos hacia la finalización de sus trayectorias. Se exponen los antecedentes existentes en la UNLP, las características del programa, con sus diferentes etapas, y evaluación final, el material considerado de interés para su investigación, y se desarrolla el marco teórico metodológico con el que se abordó la investigación. El estudio de las políticas universitarias como herramientas que apuntan al progreso y egreso de todos los estudiantes, sus aplicaciones y los resultados de las mismas es fundamental para comprender de qué modo las autoridades universitarias enfrentan fenómenos como el de la heterogeneización y masificación matricular. Se describe la experiencia desarrollada en la FCNyM, considerando los diferentes desempeños y vivencias vinculados a los gestores del programa, los alumnos incorporados, y los docentes que trabajaron en el mismo. Respecto a sus resultados se exponen los progresos y el objetivo futuro de rediseño y aplicación del programa considerando lo relevado en la primera experiencia de aplicación

Análisis de una política universitaria : El caso del ProProE en la FCNyM de la UNLP

Este trabajo apunta al análisis del programa denominado ProProE (Programa de Promoción de Egreso de las Carreras de Grado), como política pública, implementado en la Facultad de Ciencias Naturales y Museo de la Universidad Nacional de La Plata con el objetivo de acompañar hasta la graduación a los alumnos avanzados que han tenido demoras o detenimientos hacia la finalización de sus trayectorias. Se exponen los antecedentes existentes en la UNLP, las características del programa, con sus diferentes etapas, y evaluación final, el material considerado de interés para su investigación, y se desarrolla el marco teórico metodológico con el que se abordó la investigación. El estudio de las políticas universitarias como herramientas que apuntan al progreso y egreso de todos los estudiantes, sus aplicaciones y los resultados de las mismas es fundamental para comprender de qué modo las autoridades universitarias enfrentan fenómenos como el de la heterogeneización y masificación matricular. Se describe la experiencia desarrollada en la FCNyM, considerando los diferentes desempeños y vivencias vinculados a los gestores del programa, los alumnos incorporados, y los docentes que trabajaron en el mismo. Respecto a sus resultados se exponen los progresos y el objetivo futuro de rediseño y aplicación del programa considerando lo relevado en la primera experiencia de aplicación

Análisis de una política universitaria : El caso del ProProE en la FCNyM de la UNLP

Este trabajo apunta al análisis del programa denominado ProProE (Programa de Promoción de Egreso de las Carreras de Grado), como política pública, implementado en la Facultad de Ciencias Naturales y Museo de la Universidad Nacional de La Plata con el objetivo de acompañar hasta la graduación a los alumnos avanzados que han tenido demoras o detenimientos hacia la finalización de sus trayectorias. Se exponen los antecedentes existentes en la UNLP, las características del programa, con sus diferentes etapas, y evaluación final, el material considerado de interés para su investigación, y se desarrolla el marco teórico metodológico con el que se abordó la investigación. El estudio de las políticas universitarias como herramientas que apuntan al progreso y egreso de todos los estudiantes, sus aplicaciones y los resultados de las mismas es fundamental para comprender de qué modo las autoridades universitarias enfrentan fenómenos como el de la heterogeneización y masificación matricular. Se describe la experiencia desarrollada en la FCNyM, considerando los diferentes desempeños y vivencias vinculados a los gestores del programa, los alumnos incorporados, y los docentes que trabajaron en el mismo. Respecto a sus resultados se exponen los progresos y el objetivo futuro de rediseño y aplicación del programa considerando lo relevado en la primera experiencia de aplicación

The importance of science fiction and other STEM-related mass media in young people’s decisions to enrol in university STEM courses

This paper presents Australian results from the Interests and Recruitment in Science (IRIS) study with respect to the influence of STEM-related mass media, including science fiction, on students’ decisions to enrol in university STEM courses. The study found that across the full cohort (N=2999), students tended to attribute far greater influence to science-related documentaries/channels such as Life on Earth and the Discovery Channel, etc. than to science-fiction movies or STEM-related TV dramas. Males were more inclined than females to consider science fiction/fantasy books and films and popular science books/magazines as having been important in their decisions. Students taking physics/astronomy tended to rate the importance of science fiction/fantasy books and films higher than students in other courses. The implications of these results for our understanding of influences on STEM enrolments are discussed.

Micropolar flow in a porous channel with high mass transfer

Two dimensional flow of a micropolar fluid in a porous channel is investigated. The flow is driven by suction or injection at the channel walls, and the micropolar model due to Eringen is used to describe the working fluid. An extension of Berman's similarity transform is used to reduce the governing equations to a set of non-linear coupled ordinary differential equations. The latter are solved for large mass transfer via a perturbation analysis where the inverse of the cross-flow Reynolds number is used as the perturbing parameter. Complementary numerical solutions for strong injection are also obtained using a quasilinearisation scheme, and good agreement is observed between the solutions obtained from the perturbation analysis and the computations.

Investigation of RuO2/Ta2O5 thin film evolution by thermogravimetry combined with mass spectrometry

The thermal evolution process of RuO2–Ta2O5/Ti coatings with varying noble metal content has been investigated under in situ conditions by thermogravimetry combined with mass spectrometry. The gel-like films prepared from alcoholic solutions of the precursor salts (RuCl3·3H2O, TaCl5) onto titanium metal support were heated in an atmosphere containing 20% O2 and 80% Ar up to 600 °C. The evolution of the mixed oxide coatings was followed by the mass spectrometric ion intensity curves. The cracking of retained solvent and the combustion of organic surface species formed were also followed by the mass spectrometric curves. The formation of carbonyl- and carboxylate-type surface species connected to the noble metal was identified by Fourier transform infrared emission spectroscopy. These secondary processes–catalyzed by the noble metal–may play an important role in the development of surface morphology and electrochemical properties. The evolution of the two oxide phases does not take place independently, and the effect of the noble metal as a combustion catalyst was proved.

High body mass index is not a barrier to physical activity: Analysis of international rugby players' anthropometric data

Recent data indicate that levels of overweight and obesity are increasing at an alarming rate throughout the world. At a population level (and commonly to assess individual health risk), the prevalence of overweight and obesity is calculated using cut-offs of the Body Mass Index (BMI) derived from height and weight. Similarly, the BMI is also used to classify individuals and to provide a notional indication of potential health risk. It is likely that epidemiologic surveys that are reliant on BMI as a measure of adiposity will overestimate the number of individuals in the overweight (and slightly obese) categories. This tendency to misclassify individuals may be more pronounced in athletic populations or groups in which the proportion of more active individuals is higher. This differential is most pronounced in sports where it is advantageous to have a high BMI (but not necessarily high fatness). To illustrate this point we calculated the BMIs of international professional rugby players from the four teams involved in the semi-finals of the 2003 Rugby Union World Cup. According to the World Health Organisation (WHO) cut-offs for BMI, approximately 65% of the players were classified as overweight and approximately 25% as obese. These findings demonstrate that a high BMI is commonplace (and a potentially desirable attribute for sport performance) in professional rugby players. An unanswered question is what proportion of the wider population, classified as overweight (or obese) according to the BMI, is misclassified according to both fatness and health risk? It is evident that being overweight should not be an obstacle to a physically active lifestyle. Similarly, a reliance on BMI alone may misclassify a number of individuals who might otherwise have been automatically considered fat and/or unfit.

Particle number and mass emission factors from combustion of wood samples collected from Queensland forest

Knowledge of particle emission characteristics associated with forest fires and in general, biomass burning, is becoming increasingly important due to the impact of these emissions on human health. Of particular importance is developing a better understanding of the size distribution of particles generated from forest combustion under different environmental conditions, as well as provision of emission factors for different particle size ranges. This study was aimed at quantifying particle emission factors from four types of wood found in South East Queensland forests: Spotted Gum (Corymbia citriodora), Red Gum (Eucalypt tereticornis), Blood Gum (Eucalypt intermedia), and Iron bark (Eucalypt decorticans); under controlled laboratory conditions. The experimental set up included a modified commercial stove connected to a dilution system designed for the conditions of the study. Measurements of particle number size distribution and concentration resulting from the burning of woods with a relatively homogenous moisture content (in the range of 15 to 26 %) and for different rates of burning were performed using a TSI Scanning Mobility Particle Sizer (SMPS) in the size range from 10 to 600 nm and a TSI Dust Trak for PM2.5. The results of the study in terms of the relationship between particle number size distribution and different condition of burning for different species show that particle number emission factors and PM2.5 mass emission factors depend on the type of wood and the burning rate; fast burning or slow burning. The average particle number emission factors for fast burning conditions are in the range of 3.3 x 1015 to 5.7 x 1015 particles/kg, and for PM2.5 are in the range of 139 to 217 mg/kg.