L’évaluation des SAMI (système d’apprentissage multimédia interactif) : de la théorie à la pratique

Cet article traite de la mise au point d'une stratégie de collecte de données visant à regrouper et à analyser les facteurs sous-jacents au développement d'une interactivité significative dans des situations d'apprentissage médiatisé. Les auteurs ont conçu un modèle adapté d'analyse axée principalement sur une approche qualitative; ils ont utilisé à cette fin des méthodes intégrant la technique de l'entrevue, l'observation directe et l'analyse de protocoles. Celles-ci ont permis de cerner les facteurs perceptifs, transactionnels, cognitifs, pédagogiques et évaluatifs qui peuvent diriger la prise de décision des concepteurs de systèmes d'apprentissage multimédia interactifs. Des mises à l'essai de ce modèle à l'aide de concepteurs issus des milieux de formation scolaire ont indiqué la pertinence et le raffinement des analyses possibles.This article describes the development of a data collection strategy whose aim is to classify and analyse the factors underlying interaction in mediated learning situations. The authors present a model for analysis that is centred principally on a qualitative approach which integrates an interview technique, direct observation, and protocol analysis. These methods were used to describe perceptual, transactional, cognitive, pedagogical, and evaluative factors that could influence decisions made by those who develop interactive multimedia learning systems. Results of trials using this model by developers who work in training and in school contexts show the possible value and the detail that these analyses offer.Este articulo discute la preparacion de una estrategia de recoleccion de datos que busca reagrupar y analizar los factores subyacentes al desarrollo de una interactividad significativa en situaciones de aprendizaje mediatizado. Los autores han creado un modelo adaptado de anâlisis basado principalmente en un enfoque cualitativo, utilizando para es to métodos que integran la técnica de entrevistas, la observation directa y el anâlisis de protocolos. Estos métodos han permitido distinguir los factores perceptuales, transaccionales, cognos-citivos, pedagogicos y evaluativos que pudieran dirigir la toma de decisiones de los disenadores de sistemas de aprendizaje interactivo multimedios. Ensayos de este modelo con disenadores en ambitos de formation y escolar han indicado la pertinencia y el refinamiento del anâlisis posible.Dieser Artikel befasst sich mit der Aufstellung einer Datenerfassungs-strategie, die bezweckt, die Vorrausetzungen fur die Entwicklung einer signifikanten Interaktion in mediatisierten Lernsituationen zusammenzustellen und zu analysieren. Die Verfasser haben ein hauptsâchlich auf qualitatives Vbrgehen hin konzipiertes Untersuchungsmodell entworfen, wobei sie Methoden benùtzten, die das Interview, die direkte Beobachtung und die Protokollanalyse integrieren. Mit diesen Metiioden konnten die Perzeptions-, Transaktions-und Kognitionsfaktoren, sowie die pâdagogischen und die Beurteilungsfaktoren erfasst werden, die fur die Autoren neuer interaktiver Multimedia-Lernsysteme wichtig sind. Das Modell wurde mit Hilfe von von der Bildung oder Schule her kommenden Autoren erprobt; die Relevanz der Untersuchungen wurde dabei bestâtigt

Diseño e implementación de un aplicativo móvil para la mejora de gestión en la venta de pasajes para una empresa interprovincial Lima 2022

El presente proyecto de investigación tiene como principal objetivo diseñar y desarrollar un aplicativo móvil para mejora de la gestión de venta de pasajes para una empresa de transporte interprovincial, de forma que los procesos sean más eficientes y mejores. Cabe mencionar que el presente proyecto se desarrolló utilizando el software Android Studio. El aplicativo móvil permite mejorar la gestión de venta de pasajes interprovinciales Lima, dicha empresa no cuenta con un sistema adecuado que beneficie la eficacia en la gestión de obtención de compra de boletos para el usuario. Para ello el aplicativo móvil cuenta con funcionalidades prácticas y sencillas que permiten el desarrollo de un registro eficaz y eficiente para los usuarios. La empresa interprovincial a través de este aplicativo podrá informar constantemente tarifas y planes de descuentos actualizados permitiendo de esta manera generar mecanismos con la finalidad de satisfacer al cliente y ampliar la captación de usuarios para el servicio brindado.The main objective of this research project is to design and develop a mobile application to improve the management of ticket sales for an interprovincial transport company, so that the processes are more efficient and better. It is worth mentioning that this project was developed using Android Studio software. The mobile application allows to improve the management of Lima interprovincial ticket sales, this company does not have an adequate system that benefits the efficiency in the management of obtaining the purchase of tickets for the user. For this, the mobile application has practical and simple functionalities that allow the development of an effective and efficient registration for users. Through this application, the interprovincial company will be able to constantly inform updated rates and discount plans, thus allowing the generation of mechanisms in order to satisfy the client and increase the number of users for the service provided

BOOSTING

• Research ways to efficiently implement machinelearning algorithms on MIPS/PowerVR • Research possible extensions to MIP

Genetic diversity, breed composition and admixture of Kenyan domestic pigs

<div><p>The genetic diversity of African pigs, whether domestic or wild has not been widely studied and there is very limited published information available. Available data suggests that African domestic pigs originate from different domestication centers as opposed to international commercial breeds. We evaluated two domestic pig populations in Western Kenya, in order to characterize the genetic diversity, breed composition and admixture of the pigs in an area known to be endemic for African swine fever (ASF). One of the reasons for characterizing these specific populations is the fact that a proportion of indigenous pigs have tested ASF virus (ASFv) positive but do not present with clinical symptoms of disease indicating some form of tolerance to infection. Pigs were genotyped using either the porcine SNP60 or SNP80 chip. Village pigs were sourced from Busia and Homabay counties in Kenya. Because bush pigs (<i>Potamochoerus larvatus</i>) and warthogs (<i>Phacochoerus spp</i>.) are known to be tolerant to ASFv infection (exhibiting no clinical symptoms despite infection), they were included in the study to assess whether domestic pigs have similar genomic signatures. Additionally, samples representing European wild boar and international commercial breeds were included as references, given their potential contribution to the genetic make-up of the target domestic populations. The data indicate that village pigs in Busia are a non-homogenous admixed population with significant introgression of genes from international commercial breeds. Pigs from Homabay by contrast, represent a homogenous population with a “local indigenous’ composition that is distinct from the international breeds, and clusters more closely with the European wild boar than African wild pigs. Interestingly, village pigs from Busia that tested negative by PCR for ASFv genotype IX, had significantly higher local ancestry (>54%) compared to those testing positive, which contained more commercial breed gene introgression. This may have implication for breed selection and utilization in ASF endemic areas. A genome wide scan detected several regions under preferential selection with signatures for pigs from Busia and Homabay being very distinct. Additionally, there was no similarity in specific genes under selection between the wild pigs and domestic pigs despite having some broad areas under similar selection signatures. These results provide a basis to explore possible genetic determinants underlying tolerance to infection by ASFv genotypes and suggests multiple pathways for genetically mediated ASFv tolerance given the diversity of selection signatures observed among the populations studied.</p></div

MN Dra - In-the-Gap Dwarf Nova With Negative Superhumps

The multi-site photometric observations of MN Dra were made over 77 nights in August-November, 2009. The total exposure was 433 hours. During this time the binary underwent two superoutbursts and five normal outbursts. During the course of first superoutburst period of positive superhumps decreased with extremely large $\dot P = -1.5 \times 1.0^{-4}$ for SU UMa-like dwarf novae, confirming known behavior of MN Dra [1]. Between the superoutbursts MN Dra displayed negative superhumps. Their period changed cyclically around 0.096-day value.Comment: 17TH European White Dwarf Workshop. AIP Conference Proceedings, Volume 1273, pp. 320-323 (2010