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Ultimate Frisbee

Brock University Frisbee Tournament

Face to face with the mexicans : the domestic life, educational, social, and bussines ways statesmanship and literature, legendary and general history of the mexicana people.

UANL

Thesaurus biblicus, hocest dicta sententiae, et exempla ex S. S. Bibliis collecta et per locos communers distributa, ad usum concionandi & disputandi

UANL

En direct de l'EBSI, no 4

Le bulletin En direct de l'EBSI est publié annuellement, en version imprimée, par l'École de bibliothéconomie et des sciences de l'information (EBSI) de l'Université de Montréal et est distribué à tous les diplômés et étudiants.

Diccionario de mejicanismos ; colección de locuciones y frases viciosas con sus correspondientes críticas ; correcciones fundadas en autoridades de la lengua : máximas, refranes, provincialismos i remoques populares de todos los estados de la República Mexicana

UANL

Effect of leaf extract of Aegle marmelose in diabetic rats

Alloxan induced animal model was used to evaluate the potential antidiabetic effect of A . marmelose leaf extract. The diabetic animals were given insulin injection and another group A . marmelose leaf extract orally. It maintained the weight of the animals near to the control rats but a significant decrease in weight was noted it diabetic animals without any treatment . The blood elucose level in 'treated animals were near to that of control ones. Also a significantly increased glucose tolerance was observed in animals orally given the leaf extract prior to the experiment . A significant decrease in liver glycogen ( 1.24 -.07 s!/ 100 g of wet tissue) was observed in diabetic rats which was brought to almost the normal level (I.84- . 14 g; 100 g) with Icaf extract treatment. Blood urea and serum cholesterol increased ( 62.66 - 3.50 and 192.67± 13.64 mg' dl) significantly in alloxxan diabetic rats . The leaf extract treatment decreased the blood urea and serum . cholesterol (37.83 - 3.97 and 99?0±8.43 mg/dl ) to that of control ones . A similar effect was seen with insulin treatment . The results indicate that the active principle in .4. marmelose leaf extract has similar hypoglycaemic activity to insulin treatment.

A Low-Energy Ion Scattering (LEIS) Study of the Influence of the Vanadium Concentration on the Activity of Vanadium-Niobium Oxide Catalysts for the Oxidative Dehydrogenation of Propane

A series of vanadium-niobium oxide catalysts in which the vanadia content varies between 0.3 and 18mol%was prepared by coprecipitation. These catalysts were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), low-energy ion scattering (LEIS), and by catalytic testing in the oxidative dehydrogenation reaction of propane. The results of the surface analysis by XPS and LEIS are compared. It is concluded that the active site on the catalyst surface contains 2.0 ± 0.3 vanadium atoms on average. This can be understood byassuming the existenceof two or three different sites:isolated vanadium atoms, pairs of vanadium atoms, or ensembles of three vanadium atoms. At higher vanadium concentration more vanadium clusters with a higher activity are at the surface.LEIS revealed that as the vanadium concentration in the catalyst increases, vanadium replaces niobium at the surface. At vanadium concentrations above 8 mol%, new phases such as P-(Nb, V)20S which are less active because vanadium is present in isolated sites are formed, while the vanadium surface concentration shows a slight decrease

A Study of Single Stage Semi‐Dry Anaerobic Digestion of Organic Fraction of Municipal Solid Waste

Solid waste generation is a natural consequence of human activity and is increasing along with population growth, urbanization and industrialization. Improper disposal of the huge amount of solid waste seriously affects the environment and contributes to climate change by the release of greenhouse gases. Practicing anaerobic digestion (AD) for the organic fraction of municipal solid waste (OFMSW) can reduce emissions to environment and thereby alleviate the environmental problems together with production of biogas, an energy source, and digestate, a soil amendment. The amenability of substrate for biogasification varies from substrate to substrate and different environmental and operating conditions such as pH, temperature, type and quality of substrate, mixing, retention time etc. Therefore, the purpose of this research work is to develop feasible semi-dry anaerobic digestion process for the treatment of OFMSW from Kerala, India for potential energy recovery and sustainable waste management. This study was carried out in three phases in order to reach the research purpose. In the first phase, batch study of anaerobic digestion of OFMSW was carried out for 100 days at 32°C (mesophilic digestion) for varying substrate concentrations. The aim of this study was to obtain the optimal conditions for biogas production using response surface methodology (RSM). The parameters studied were initial pH, substrate concentration and total organic carbon (TOC). The experimental results showed that the linear model terms of initial pH and substrate concentration and the quadratic model terms of the substrate concentration and TOC had significant individual effect (p < 0.05) on biogas yield. However, there was no interactive effect between these variables (p > 0.05). The optimum conditions for maximizing the biogas yield were a substrate concentration of 99 g/l, an initial pH of 6.5 and TOC of 20.32 g/l. AD of OFMSW with optimized substrate concentration of 99 g/l [Total Solid (TS)-10.5%] is a semi-dry digestion system .Under the optimized condition, the maximum biogas yield was 53.4 L/kg VS (volatile solid).. In the second phase, semi-dry anaerobic digestion of organic solid wastes was conducted for 45 days in a lab-scale batch experiment for substrate concentration of 100 g/l (TS-11.2%) for investigating the start-up performances under thermophilic condition (50°C). The performance of the reactor was evaluated by measuring the daily biogas production and calculating the degradation of total solids and the total volatile solids. The biogas yield at the end of the digestion was 52.9 L/kg VS for the substrate concentration of 100 g/l. About 66.7% of volatile solid degradation was obtained during the digestion. A first order model based on the availability of substrate as the limiting factor was used to perform the kinetic studies of batch anaerobic digestion system. The value of reaction rate constant, k, obtained was 0.0249 day-1. A laboratory bench scale reactor with a capacity of 36.8 litres was designed and fabricated to carry out the continuous anaerobic digestion of OFMSW in the third phase. The purpose of this study was to evaluate the performance of the digester at total solid concentration of 12% (semi-dry) under mesophlic condition (32°C). The digester was operated with different organic loading rates (OLRs) and constant retention time. The performance of the reactor was evaluated using parameters such as pH, volatile fatty acid (VFA), alkalinity, chemical oxygen demand (COD), TOC and ammonia-N as well as biogas yield. During the reactor’s start-up period, the process is stable and there is no inhibition occurred and the average biogas production was 14.7 L/day. The reactor was fed in continuous mode with different OLRs (3.1,4.2 and 5.65 kg VS/m3/d) at constant retention time of 30 days. The highest volatile solid degradation of 65.9%, with specific biogas production of 368 L/kg VS fed was achieved with OLR of 3.1 kg VS/m3/d. Modelling and simulation of anaerobic digestion of OFMSW in continuous operation is done using adapted Anaerobic Digestion Model No 1 (ADM1).The proposed model, which has 34 dynamic state variables, considers both biochemical and physicochemical processes and contains several inhibition factors including three gas components. The number of processes considered is 28. The model is implemented in Matlab® version 7.11.0.584(R2010b). The model based on adapted ADM1 was tested to simulate the behaviour of a bioreactor for the mesophilic anaerobic digestion of OFMSW at OLR of 3.1 kg VS/m3/d. ADM1 showed acceptable simulating results.

Habilidades de vida para prevenir el tabaco y el alcohol en Primaria.

Se presenta memoria final de proyecto educativo que pretende la realización de un trabajo enfocado a hacer frente y prevenir, desde la escuela, dos de los problemas más alarmantes de nuestra población preadolescente y adolescente como son el consumo del tabaco y el alcohol. Por lo tanto, es un trabajo de educación para la salud, la coeducación y la educación del consumidor. Se realiza en el CEIP San Miguel de Almuñécar, Granada. Los objetivos son: fomentar el desarrollo de habilidades y recursos necesarios basadas en la confianza como base de la autoestima, el respeto y la autonomía, para prevenir y enfrentarse de forma adecuada a las situaciones relacionadas con el consumo de tabaco y alcohol; promocionar la salud como bienestar físico, social o mental y la calidad de vida, formando actitudes positivas hacia su mantenimiento desde valores de educar para la salud; desarrollar websquest y unidades didácticas desde la interdisciplinariedad; evitar el consumo de tabaco y alcohol a través de la información, la participación y la creación de alternativas; implicar a otros agentes educativos en nuestro proyecto.

La Mobilitat universitària i la llengua catalana

Els objectius comuns definits per l'espai europeu d'educació superior han comportat, ineludiblement, que les universitats catalanes s'hagin hagut d'obrir a l'exterior. Les universitats del nostre país s'han trobat abocades de ple a un procés d'internacionalització irrefrenable

Educación e inclusión : los procesos de enseñanza y aprendizaje en la educación primaria y la inclusión digital : un estudio de casos en Uruguay.

Analizar y comprender en primer lugar, si existe una inclusión digital y social por implantar el Plan CEIBAL (Conectividad Educativa de Informática Básica para el Aprendizaje en Línea) y, en segundo lugar, si se han producido cambios en el proceso de enseñanza y de aprendizaje y en los procesos cognitivos y metacognitivos del alumnado de una escuela del interior de Uruguay. Se trata de una investigación cualitativa interpretativa. El estudio de caso es el método de investigación elegido ya que permite la exploración, el conocimiento, comprensión y valoración de la realidad en profundidad, de diseño flexible y abierto. Este estudio centra su análisis en una escuela en Uruguay 'José Pedro Varela' situada en el interior del país, en contexto social crítico, con 850 alumnas y alumnos. Se realizan observaciones y entrevistas, registrando las acciones en un diario de campo y en un diario de investigadora. Las entrevistas a docentes, familias, alumnado y personal de servicios se organizan siguiendo un criterio de representatividad de diversos grupos de edad, género, peculiaridades diversas y tiempo de acceso al ordenador. En las observaciones se da prioridad ante todo a la representatividad, en los recreos, ciertos eventos especiales, como aulas de música o de cuentos o la fiesta de la escuela, situaciones especialmente elegidas para aplicar las estrategias. El efecto CEIBAL es instantáneo, los aprendizajes que han adquirido o comenzado a adquirir tanto el alumnado, la profesora y las familias con la llegada de las XO (pequeños ordenadores portátiles) favorecen ampliamente la inclusión digital. En lineas generales se han podido registrar algunas de las siguientes transformaciones en el aprendizaje : a.- Un notable aumento en la motivación del alumnado b.- El trabajo cooperativo ha crecido tanto horizontal como verticalmente. c.- La construcción del conocimiento ha cambiado. d.-Trabajan más por proyectos debido a que la tecnología se lo permite o facilita. e.- Los niños y niñas con discapacidades varias son los grandes beneficiarios del Plan CEIBAL. Esta investigación es, también, una invitación a construir la escuela inclusiva que permita vivir en una sociedad más justa y sustentable.

Programa de entrenamiento en soluci??n de problemas pr??cticos aplicado a personas con discapacidad intelectual

Resumen tomado de la publicaci??n. Resumen tambi??n en ingl??s

Local WMR navigation with monocular data

This article presents recent WMR (wheeled mobile robot) navigation experiences using local perception knowledge provided by monocular and odometer systems. A local narrow perception horizon is used to plan safety trajectories towards the objective. Therefore, monocular data are proposed as a way to obtain real time local information by building two dimensional occupancy grids through a time integration of the frames. The path planning is accomplished by using attraction potential fields, while the trajectory tracking is performed by using model predictive control techniques. The results are faced to indoor situations by using the lab available platform consisting in a differential driven mobile robot