Clean-Growth Opportunities for Southeast Asia

Article for general public (2009)

Calvin et la démocratie : mythes et réalités

Speeches/Talks (2009)

Optimierung der Tragfähigkeit von antibiotikabeladenen PMMA-hüftinterimsprothesen

Doctoral thesis (2009)

Report on Implementations of the Common File Format

Report (2009)

Dynamic context logic and its application to norm change

in Proceedings of Dagstuhl Seminar (2009, November 03), 09121

Building on a simple modal logic of context, the paper presents a dynamic logic characterizing operations of contraction and expansion on theories. We investigate the mathematical properties of the logic ... [more ▼]

Building on a simple modal logic of context, the paper presents a dynamic logic characterizing operations of contraction and expansion on theories. We investigate the mathematical properties of the logic, and use it to develop an axiomatic and semantic analysis of norm change in normative systems. The proposed analysis advances the state of the art by providing a formal semantics of norm-change which, at the same time, takes into account several different aspects of the phenomenon, such as permission and obligation dynamics, as well as the dynamics of classificatory rules. [less ▲]

Een hele kleine plek in Afrika

Article for general public (2009)

Stable Robust Adaptive Controller and Observer Design for a Class of SISO Nonlinear Systems with Unknown Dead Zone

in 2009 International Conference on Control and Automation (2009, November)

This paper presents a new stable robust adaptive controller and observer design for a class of nonlinear systems that contain i. coupling of unmeasured states and unknown parameters ii. unknown dead zone ... [more ▼]

This paper presents a new stable robust adaptive controller and observer design for a class of nonlinear systems that contain i. coupling of unmeasured states and unknown parameters ii. unknown dead zone at the system actuator. The system is firstly cast into a modified form in which the observer and parameter estimation become feasible. Then a stable robust adaptive controller, state observer, parameter update laws are derived that would provide global adaptive system stability and desirable performance. To validate the approach, simulation was performed to a single-link mechanical system with a dynamic friction model and unknown dead zone exists at the system actuation. Then a comparison is presented with the results when there is no dead zone at the system actuation. [less ▲]

Working memory and fluid intelligence

Poster (2009, November)

The present study investigates how working memory and fluid intelligence are related in young children and which aspect of working memory span tasks– short-term storage or controlled attention - might ... [more ▼]

The present study investigates how working memory and fluid intelligence are related in young children and which aspect of working memory span tasks– short-term storage or controlled attention - might drive the relationship. A sample of 119 children were followed from kindergarten to 2nd grade and completed assessments of working memory, short-term memory, and fluid intelligence. The data showed that working memory, verbal short-term memory, and fluid intelligence were highly related but separate constructs in young children. The results further showed that when the common variance between working memory and short-term memory was controlled, the residual working memory factor manifested significant links with fluid intelligence whereas the residual short-term memory factor did not. These findings suggest that in young children the executive demands rather than the storage component of working memory span tasks are the source of their link with fluid intelligence. [less ▲]

Lehrerausbildung: Von der notwendigen Entwicklung klinischer Kompetenzen bei Referendaren

Scientific Conference (2009, November)

Banning solves the problem? Effects of banning mobile phone use in schools on cyber bullying

Poster (2009, November)