708 resultados para Foreign language learning and teaching
Resumo:
This thesis examines the history and evolution of information system process innovation (ISPI) processes (adoption, adaptation, and unlearning) within the information system development (ISD) work in an internal information system (IS) department and in two IS software house organisations in Finland over a 43-year time-period. The study offers insights into influential actors and their dependencies in deciding over ISPIs. The research usesa qualitative research approach, and the research methodology involves the description of the ISPI processes, how the actors searched for ISPIs, and how the relationships between the actors changed over time. The existing theories were evaluated using the conceptual models of the ISPI processes based on the innovationliterature in the IS area. The main focus of the study was to observe changes in the main ISPI processes over time. The main contribution of the thesis is a new theory. The term theory should be understood as 1) a new conceptual framework of the ISPI processes, 2) new ISPI concepts and categories, and the relationships between the ISPI concepts inside the ISPI processes. The study gives a comprehensive and systematic study on the history and evolution of the ISPI processes; reveals the factors that affected ISPI adoption; studies ISPI knowledge acquisition, information transfer, and adaptation mechanisms; and reveals the mechanismsaffecting ISPI unlearning; changes in the ISPI processes; and diverse actors involved in the processes. The results show that both the internal IS department and the two IS software houses sought opportunities to improve their technical skills and career paths and this created an innovative culture. When new technology generations come to the market the platform systems need to be renewed, and therefore the organisations invest in ISPIs in cycles. The extent of internal learning and experiments was higher than the external knowledge acquisition. Until the outsourcing event (1984) the decision-making was centralised and the internalIS department was very influential over ISPIs. After outsourcing, decision-making became distributed between the two IS software houses, the IS client, and itsinternal IT department. The IS client wanted to assure that information systemswould serve the business of the company and thus wanted to co-operate closely with the software organisations.
Resumo:
Tämän diplomityön tarkoituksena on kuvata Lappeenrannan teknillisessä yliopistossa matematiikan perusopetuksen virtuaaliympäristöä pedagogisesti toimivana oppimisympäristönä. Matematiikan virtuaalimateriaali on luotu tukemaan lähiopetusta matematiikan perusopetuksessa. Virtuaalimateriaalin kehittämisessä tähdätään pedagogiseen osaamiseen ja järjestelmän toimintalogiikan kehittämiseen sisällönhallintatyökalujen avulla. Opiskelun ja opetuksen kansainvälistymisen myötä on kehitetty perusmatematiikan virtuaaliympäristöä niin, että järjestelmä tarjoaa yliopiston opettajille ja suomalaisille sekä ulkomaalasille opiskelijoille yhteisen perusmatematiikan virtuaaliympäristön. Kehityksen tuloksena on saatu järjestelmä, joka hyödyntää tietoverkkoja kuten Wikipediaa verkko-opetuksen aputyökaluna.
Resumo:
Cette thèse comprend trois essais qui abordent l'information le processus d'ap-prentissage ainsi que le risque dans les marchés finances. Elle se concentre d'abord sur les implications à l'équilibre de l'hétérogénéité des agents à travers un processus d'apprentissage comprtemental et de mise à jour de l'information. De plus, elle examine les effets du partage des risques dans un reseau entreprise-fournisseur. Le premier chapitre étudie les effets du biais de disponibili sur l'évaluation des actifs. Ce biais décrit le fait que les agents surestiment l'importance de l'information acquise via l'expérience personnelle. L'hétérogénéité restante des différentes perceptions individuelles amène à une volonté d'échanges. Conformé¬ment aux données empiriques, les jeunes agents échangent plus mais en même temps souffrent d'une performance inférieure. Le deuxième chapitre se penche sur l'impact qu'ont les différences de modelisation entre les agents sur leurs percevons individuelles du processus de prix, dans le contexte des projections de modèles. Les agents sujets à un biais de projection pensent être représentatifs et interprètent les opinions des autres agents comme du bruit. Les agents, avec des modèles plus persistants, perçoivent que les prix réagissent de façon excessive lors des périodes de turbulence. Le troisième chapitre analyse l'impact du partage des risques dans la relation entreprise-fournisseur sur la décision optimale de financement de l'entreprise. Il étudie l'impact sur l'optimisation de la structure du capital ainsi que sur le coût du capital. Les résultats indiquent en particulier qu'un fournisseur avec un effet de levier faible est utile pour le financement d'un nouveau projet d'investissement. Pour des projets très rentables et des fournisseurs à faible effet de levier, le coût des capitaux propres de l'entreprise peut diminuer.
Resumo:
Se ha escrito y reflexionado mucho en los últimos diez años sobre el uso de portafolios en las clases de lengua. Sin embargo, no se ha estudiado aún suficientemente cómo perciben los estudiantes el uso de estos portafolios. En este artículo se presentan una parte de los resultados del proyecto Diseño y estudio de la incidencia de instrumentos para el desarrollo de la competencia estratégica en el aprendizaje de lenguas extranjeras en contexto universitario (DEICOMECU).Concretamente se focaliza sobre la percepción de los estudiantes por lo que se refiere al uso del portafolios. Se describe el contexto y el tipo de portafolios que se utilizó y además se añaden reflexiones de la autora a raíz de una relectura posterior de las interpretaciones de los datos.
Resumo:
Presentamos el proyecto CLARIN, un proyecto cuyo objetivo es potenciar el uso de instrumentos tecnológicos en la investigación en las Humanidades y Ciencias Sociales
Resumo:
Language diversity has become greatly endangered in the past centuries owing to processes of language shift from indigenous languages to other languages that are seen as socially and economically more advantageous, resulting in the death or doom of minority languages. In this paper, we define a new language competition model that can describe the historical decline of minority languages in competition with more advantageous languages. We then implement this non-spatial model as an interaction term in a reactiondiffusion system to model the evolution of the two competing languages. We use the results to estimate the speed at which the more advantageous language spreads geographically, resulting in the shrinkage of the area of dominance of the minority language. We compare the results from our model with the observed retreat in the area of influence of the Welsh language in the UK, obtaining a good agreement between the model and the observed data
Resumo:
We have studied the motor abilities and associative learning capabilities of adult mice placed in different enriched environments. Three-month-old animals were maintained for a month alone (AL), alone in a physically enriched environment (PHY), and, finally, in groups in the absence (SO) or presence (SOPHY) of an enriched environment. The animals' capabilities were subsequently checked in the rotarod test, and for classical and instrumental learning. The PHY and SOPHY groups presented better performances in the rotarod test and in the acquisition of the instrumental learning task. In contrast, no significant differences between groups were observed for classical eyeblink conditioning. The four groups presented similar increases in the strength of field EPSPs (fEPSPs) evoked at the hippocampal CA3-CA1 synapse across classical conditioning sessions, with no significant differences between groups. These trained animals were pulse-injected with bromodeoxyuridine (BrdU) to determine hippocampal neurogenesis. No significant differences were found in the number of NeuN/BrdU double-labeled neurons. We repeated the same BrdU study in one-month-old mice raised for an additional month in the above-mentioned four different environments. These animals were not submitted to rotarod or conditioned tests. Non-trained PHY and SOPHY groups presented more neurogenesis than the other two groups. Thus, neurogenesis seems to be related to physical enrichment at early ages, but not to learning acquisition in adult mice.
Resumo:
El domini de la llengua escolar apareix en totes les polítiques educatives com el tema central a través del qual s’ha d’incidir per garantir la igualtat i la cohesió social, ja que l’èxit escolar passa per desenvolupar una bona competència en la llengua vehicular de l’ensenyament (OECD 2008). A Catalunya, tot i els esforços destinats, els resultats lingüístics de l’alumnat estranger continuen essent molt més baixos que els de l’alumnat nacional (Consell Superior d’Avaluació del Sistema Educatiu 2009). No obstant això, hi ha molt pocs estudis que hagin analitzat els factors que s’amaguen darrere dels resultats lingüístics de l’alumnat estranger. Amb aquest objectiu en ment, l’article presenta les dades d’una recerca que pretén aprofundir les variables que incideixen en el coneixement de català i castellà escrit de l’alumnat estranger escolaritzat en 57 escoles de primària repartides pel territori de Catalunya
Resumo:
El trabajo que presentamos pretende establecer e implamentar criterios respecto la organización escolar y la práctica educativa para mejorar las competencias básicas del alumnado extranjero que participa en las aulas de Cataluña con una gran diversidad respecto el conocimiento de la lengua de la escuela. En concreto, buscamos profundizar y localizar los factores y elementos relevantes para la organización escolar y la práctica educativa en escuelas plurilingües con estas características
Resumo:
En este trabajo se pretende, por una parte, identificar los usos del pretérito perfecto compuesto y su contraste para las distintas variedades del español y, por otra parte, comparar las conclusiones a las que se llegue al respecto, con dos métodos y una gramática pensados específicamente para la enseñanza de español como lengua extranjera
Resumo:
En este trabajo he abordado la enseñanza de los pronombres átonos le, la, lo / les, las, los y sus variantes dialectales en el contexto de la enseñanza de español como lengua extranjera. Las variaciones en el uso de los pronombres, ya no solo en la Península, sino en el resto de países hispanohablantes, son bastante numerosas y es una de las mayores dificultades que presenta el español