References of "2009"
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See detailX-Kaapi : Une nouvelle implémentation eXtrême du vol de travail
Besseron, Xavier UL; Laferriere, Christophe; Traore, Daouda et al

in Rencontres Francophones du Parallélisme (RenPar'19) (2009, September)

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See detailVoluntary Affiliation to Peru’s Individual Accounts Pension System
Olivera Angulo, Javier UL; Li, Carmen

in International Social Security Review (2009), 62(3), 23-48

One important aspect in the design of social protection is coverage. In Peru, as in most Latin American countries, social security coverage is mandatory only for workers in the formal sector. This article ... [more ▼]

One important aspect in the design of social protection is coverage. In Peru, as in most Latin American countries, social security coverage is mandatory only for workers in the formal sector. This article investigates the determinants of voluntary affiliation to Peru’s individual accounts pension system. It is found that married males with more than high-school level education living in high income households and with other family members already affiliated to the individual accounts pension system have a higher likelihood of voluntary affiliation. Although the results suggest that family-based safety nets might be substitutes for voluntary participation in the individual accounts pension system, nonetheless, extending pension coverage and addressing poverty remain as challenges for government involvement. [less ▲]

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See detailGeteiltes Leid ist halbes Leid: Soziale Unterstützung, Angst und perzipierte Gesundheit
Recchia, Sophie; Hoffmann, M.; Steffgen, Georges UL et al

Scientific Conference (2009, September)

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See detailLeitlinien einer Wirkungsforschung zur Integration von Bewegungslernen und Persönlichkeitsentwicklung
Bähr, Ingrid; Sygusch, Ralf; Bund, Andreas UL et al

in Krüger, M.; Neuber, N.; Bracht, M. (Eds.) et al Bildungspotenziale im Sport (2009, September)

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See detailDo overweight students experience more physical aggression?
Recchia, Sophie; Hoffmann, M.; Steffgen, Georges UL et al

Poster (2009, September)

Findings demonstrated that overweight adolescents are more likely to be both victims and perpetrators of violent acts (Janssen et al., 2004). The present study tested this weight-based victimization ... [more ▼]

Findings demonstrated that overweight adolescents are more likely to be both victims and perpetrators of violent acts (Janssen et al., 2004). The present study tested this weight-based victimization/perpetrator hypothesis. The study sample comprised N1⁄4649 middle school students, which were regrouped in three weight categories (i.e. underweight, normal weight, overweight) according to the cut-offs proposed by the International Obesity Taskforce. In order to analyze group differences between the weight categories, three same sized groups (N 1⁄4 75) were randomly created from the whole data set. Results confirmed that overweight students are more likely to be victimized but not to become perpetrators themselves compared to their peers. Logistic regressions showed that being anxious (OR 1⁄4 2.34), having low self- esteem (OR1⁄40.58), having a higher BMI (OR1⁄41.11) and being male (OR1⁄40.26) are risk factors of victimization. Results will be discussed with respect to psychosocial interventions. [less ▲]

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See detailA New Genetic Algorithm for Scheduling for Large Communication Delays
Pecero, Johnatan UL; Trystram, Denis; Zomaya, Albert Y.

in 15th International Euro-Par Conference (2009, August 28)

In modern parallel and distributed systems, the time for exchanging data is usually larger than that for computing elementary operations. Consequently, these communications slow down the execution of the ... [more ▼]

In modern parallel and distributed systems, the time for exchanging data is usually larger than that for computing elementary operations. Consequently, these communications slow down the execution of the application scheduled on such systems. Accounting for these communications is essential for attaining efficient hardware and software utilization. Therefore, we provide in this paper a new combined approach for scheduling parallel applications with large communication delays on an arbitrary number of processors. In this approach, a genetic algorithm is improved with the introduction of some extra knowledge about the scheduling problem. This knowledge is represented by a class of clustering algorithms introduced recently, namely, convex clusters which are based on structural properties of the parallel applications. The developed algorithm is assessed by simulations run on some families of synthetic task graphs and randomly generated applications. The comparison with related approaches emphasizes its interest. [less ▲]

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See detailAssessment of Problem Solving Competencies
Funke, Joachim; Wirth, J.; Greiff, Samuel UL

Scientific Conference (2009, August 26)

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See detailSecurity matters: Privacy in Voting and Fairness in Digital Exchange
Jonker, Hugo UL

Doctoral thesis (2009)

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See detailFrom process models to diagnostic practice: a unified approach to complex problem solving
Goode, N.; Greiff, Samuel UL

Scientific Conference (2009, August 25)

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See detailConceptualizing globalized migration in rural areas in Europe
Nienaber, Birte UL

Scientific Conference (2009, August 19)

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See detailMay Cross-Border planning facilitate interethnic reconciliation in the Western Balkans?
Blondel, Cyril UL

Scientific Conference (2009, August 15)

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See detailHaydn’s Arrangements of Scottish Folksongs
Sagrillo, Damien UL

Scientific Conference (2009, August 08)

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See detailThe death receptor CD95 activates adult neural stem cells for working memory formation and brain repair.
Corsini NS; Sancho-Martinez I; Laudenklos S et al

in Cell Stem Cell (2009), 5

Adult neurogenesis persists in the subventricular zone and the dentate gyrus and can be induced upon central nervous system injury. However, the final contribution of newborn neurons to neuronal networks ... [more ▼]

Adult neurogenesis persists in the subventricular zone and the dentate gyrus and can be induced upon central nervous system injury. However, the final contribution of newborn neurons to neuronal networks is limited. Here we show that in neural stem cells, stimulation of the "death receptor" CD95 does not trigger apoptosis but unexpectedly leads to increased stem cell survival and neuronal specification. These effects are mediated via activation of the Src/PI3K/AKT/mTOR signaling pathway, ultimately leading to a global increase in protein translation. Induction of neurogenesis by CD95 was further confirmed in the ischemic CA1 region, in the naive dentate gyrus, and after forced expression of CD95L in the adult subventricular zone. Lack of hippocampal CD95 resulted in a reduction in neurogenesis and working memory deficits. Following global ischemia, CD95-mediated brain repair rescued behavioral impairment. Thus, we identify the CD95/CD95L system as an instructive signal for ongoing and injury-induced neurogenesis. [less ▲]

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See detailMezinárodní smlouvy EU – jak ochránit investice
Lickova, Magdalena UL; Ivo, Janda

Article for general public (2009)

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See detaili2g Common File Format Draft v2
Hendriks, Maxim; Kortenkamp, Ulrich; Kreis, Yves UL et al

Report (2009)

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See detailOn the moments and distribution of discrete Choquet integrals from continuous distributions
Kojadinovic, Ivan; Marichal, Jean-Luc UL

in Journal of Computational and Applied Mathematics (2009), 230(1), 83-94

We study the moments and the distribution of the discrete Choquet integral when regarded as a real function of a random sample drawn from a continuous distribution. Since the discrete Choquet integral ... [more ▼]

We study the moments and the distribution of the discrete Choquet integral when regarded as a real function of a random sample drawn from a continuous distribution. Since the discrete Choquet integral includes weighted arithmetic means, ordered weighted averaging functions, and lattice polynomial functions as particular cases, our results encompass the corresponding results for these aggregation functions. After detailing the results obtained in [1] in the uniform case, we present results for the standard exponential case, show how approximations of the moments can be obtained for other continuous distributions such as the standard normal, and elaborate on the asymptotic distribution of the Choquet integral. The results presented in this work can be used to improve the interpretation of discrete Choquet integrals when employed as aggregation functions. [less ▲]

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See detailWORKING MEMORY AND LEARNING: A LONGITUDINAL STUDY OF TRILINGUAL CHILDREN
Engel de Abreu, Pascale UL

Scientific Conference (2009, August)

The aim of the present study was to investigate the contribution of two working memory systems (the phonological loop and the central executive) to children’s learning in the areas of vocabulary, language ... [more ▼]

The aim of the present study was to investigate the contribution of two working memory systems (the phonological loop and the central executive) to children’s learning in the areas of vocabulary, language comprehension, reading, spelling, mathematical skills, and foreign language acquisition. The term working memory refers to the ability to store and manipulate information in mind for a brief period of time, in the course of ongoing cognitive activities (Baddeley, 2000). A sample of 119 Luxembourgish children, learning German and French as secondary languages were assessed longitudinally over a 3-year time period. In Luxembourg, children learn to speak, read, and write in two languages that are different from their native language Luxembourgish. A battery of working memory, and learning ability tests were administered. Children were tested in kindergarten (5 years of age), in first, and in second grade with a one year interval between each testing wave. Multiple assessments of each construct made it possible to construct latent variables, and apply structural equation modeling techniques to explore the underlying theoretical structure of working memory in young children, and possible links with learning. Results indicate that relations between the working memory measures were best characterized by a model consisting of two related but separable constructs corresponding to the phonological loop and the central executive. Individual differences in phonological loop functioning and the central executive were found to be remarkably stable from kindergarten through second grade. The data further showed that both memory components were differentially associated with learning: Whereas the phonological loop was more specifically linked to early language development and vocabulary in particular, the central executive appeared to make more general contributions to classroom related learning. The findings lend strong support to the position that the phonological loop is one of the main contributors to new word learning in both native and non-native languages by supporting the formation of stable phonological representations of new words in long-term memory. Furthermore the findings fit well with the position that the central executive might play an important role in the monitoring and processing of information during complex and demanding activities present in many classroom situations. In conclusion, the presented evidence of (a) the stability of individual differences in young children’s working memory capacity and, (b) causal relations of working memory with learning reinforces the value of early screening of working memory abilities to identify children who are at risk of poor academic progress over the coming years. [less ▲]

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See detailModelling the English Learning Process of Foreign Students in Singapore: Thematic Analyses of Student Focus Groups
Sng, Bee Bee; Pathak, Anil; Serwe, Stefan Karl UL

in Humanising Language Teaching (2009), 11(4),

Detailed reference viewed: 87 (0 UL)