International Migration in rural Europe

Scientific Conference (2011, October 12)

The principle of equality of arms in international criminal justice

Doctoral thesis (2011)

Scales, melodic traits and forms in German Folksongs. Automated Folksong Analysis by EsAC

Scientific Conference (2011, October 02)

Investigations into the Safety Level of Marine Steel Sheet Pile Structures with Consideration of Corrosion

in Proceedings of the 20th Australasian Coastal and Ocean Engineering Conference 2011 and the 13th Australasian Port and Harbour Conference 2011 (2011, October)

In this paper, several reliability analyses of a sheet pile wall in a marine environment were performed, in which the influence of a wide range of corrosion models was assessed. The influence of the ... [more ▼]

In this paper, several reliability analyses of a sheet pile wall in a marine environment were performed, in which the influence of a wide range of corrosion models was assessed. The influence of the corrosion was compared in structures with different conditions (two different sheet pile profiles were used, as well as two values of the sheet pile length and also two different values of the surcharge). To perform the reliability analyses, the First Order Reliability Method (FORM) was used and reliability analyses were performed using a combination of different programs. The effect that the variation of the coefficient of variation v of the probability distributions has on the measured level of safety is not linear. For certain ranges of v, the influence on the safety level is not very significant, whereas in other ranges it causes an abrupt reduction of the safety, meaning that access to data of thickness loss due to corrosion of good quality (that represent reality as accurately as possible) is very important to avoid erroneous conclusions about the safety. [less ▲]

Auswertung der Selbstevaluation des IDENT-Projekts (2007-2010)

Presentation (2011, October)

Children explain the rainbow: Using young children’s ideas to guide science curricula

in The Journal of Science Education and Technology (2011), 20(5), 643-655

This study examines young children’s ideas about natural science phenomena and explores possibilities in starting investigations in kindergarten from their ideas. Given the possibilities inherent in how ... [more ▼]

This study examines young children’s ideas about natural science phenomena and explores possibilities in starting investigations in kindergarten from their ideas. Given the possibilities inherent in how young children make sense of their experiences, we believe it is critical to take children’s perspectives into consideration when designing any activities, and ideally, to design activities from their perspectives and understandings. Specifically, this research focuses on 5- and 6-year old children’s explanations of rainbows, and there are three main findings. First, our analysis demonstrates that opportunities to discuss their ideas revealed children’s different perceptions of the phenomena of rainbows. Secondly, this research emphasizes that peer-to-peer interaction in the co-construction of science concepts provided support to the children to learn from, and with, each other. Third, children’s initial explanations provided the teacher-researcher (second author) with a starting point to scaffold her teaching from. Although rainbows are quite an abstract topic to try to reproduce in the classroom, the children demonstrated their often sophisticated understandings of natural science phenomena, as well as their creative ideas as related to rainbows. In order to foster an appreciation of themes in natural science, it is crucial to build from what children already know and can do, and to use these emergent theories and considerations in designing curriculum. Thus, we draw implications for the importance of teaching science at the early childhood level and for using children’s ideas as starting points in planning instruction. [less ▲]

La vitesse de défilement des barres de progression influence-t-elle la perception du temps d’attente ?

Scientific Conference (2011, October)

This research focuses on the satisfaction and waiting times perceived by a user during the moments where the interaction between the user and the system is temporarily interrupted (file download, setup of ... [more ▼]

This research focuses on the satisfaction and waiting times perceived by a user during the moments where the interaction between the user and the system is temporarily interrupted (file download, setup of a program, etc.). These waiting times are often sources of anxiety and irritation. They go usually with the presentation of an animated progress bar. The objective of this research is to study the impact of different variable-rate progress bars by varying the speed of scrolling. Thus, we are interested in the effects of acceleration and deceleration between progress bars positions. The results confirm the existence of a causal link between perception of waiting time and satisfaction. In addition, a progress bar with a decelerating speed is significantly more appreciated by the users. The results may provide valuable information for the design of computer interfaces. [less ▲]

Berezin's coherent states, symbols and transform revisited

Scientific Conference (2011, October)

A description of n-ary semigroups polynomial-derived from integral domains

in Semigroup Forum (2011), 83(2), 241-249

We provide a complete classification of the n-ary semigroup structures defined by polynomial functions over infinite commutative integral domains with identity, thus generalizing Glazek and Gleichgewicht ... [more ▼]

We provide a complete classification of the n-ary semigroup structures defined by polynomial functions over infinite commutative integral domains with identity, thus generalizing Glazek and Gleichgewicht's classification of the corresponding ternary semigroups. [less ▲]

When does students’ gender affect teachers’ school placement decisions? An experimental study with Luxembourgish primary school teachers

Scientific Conference (2011, October)