The ability to read numbers: A universal measure?

in AERA (2018)

This study tests the hypothesis that there is a single pathway for the order in which children learn to identify numbers. Although a prime facie case can be made, systematic variation might be expected ... [more ▼]

This study tests the hypothesis that there is a single pathway for the order in which children learn to identify numbers. Although a prime facie case can be made, systematic variation might be expected because of teaching, or language of instruction, or country of origin. This study concludes that such variations are minor and that the pathway that children follow when learning to identify numbers follows the same pattern across different groups. This finding is significant in furthering our knowledge of children’s early mathematics development; it suggests that there is a universal developmental scale from which the diverse aspects of mathematical development can be viewed. This lays the foundation for international comparisons of the mathematical development of young children. [less ▲]

L'abolition de l'esclavage fête ses 130 ans au Brésil...

Article for general public (2018)

Abolition of Exequatur - Addressing the Commission's Concerns

in Rabelszeitschrift für ausländisches und internationales Privatrecht (2011)

Abortion in the Third Reich: Ideology and the Penal System Concerning Women in the Penal Institution in Saarbrücken, Germany

Presentation (2015, March 21)

With the help of almost 200 dossiers of the Penal Institution in Saarbrücken (Germany) from the period from 1928 to 1944, I examine the situation of imprisoned German women during the Nazi Regime. I am ... [more ▼]

With the help of almost 200 dossiers of the Penal Institution in Saarbrücken (Germany) from the period from 1928 to 1944, I examine the situation of imprisoned German women during the Nazi Regime. I am focusing on the cases of illegal abortions by examining individual cases as well as common ideological and legal conceptions. The dossiers helped me to make conclusions about the gap between ideological ideas concerning the German woman and the complex and dark reality of life conditions for women. Insufficient medical and sexual education along with a legal inferiority shaped the „abortion epidemics“ among lower class women. Secondary and primary sources show that along with the gradual descent of the whole legal system into a system of institutionalized crime, economic conditions also influenced the catastrophic conditions for the pregnant lower class woman. The complexity of the cases is striking: Along with the lack of understanding for the female body, economic misery, legal problems and war, many other factors appear during the research. Pressure from the own family, social norms and Christian morals played a role. Furthermore, men were an essential part of this history as husbands, fathers or rapists. Moreover, abortions developed into a business, as groups of men and women started to help other undergo abortion for money. I also explain the most common procedure of abortion and its risks. [less ▲]

About Pedagogization: From the Perspective of the History of Education

in Depaepe, Marc (Ed.) Between Educationalization and Appropriation - Selected Writings on the History of Modern Educational Systems (2012)

For history researchers, it is not a needless luxury to consider from time to time the content and the significance of the basic concepts they use, certainly if they have the ambition to interpret and/or ... [more ▼]

For history researchers, it is not a needless luxury to consider from time to time the content and the significance of the basic concepts they use, certainly if they have the ambition to interpret and/or explain history in addition to purely describing it. This self-reflection, compelled by the annually recurring dialogue with educational philosophers (cf. Smeyers & Depaepe, 2006),2 need not necessarily place an emphasis on philosophical abstraction but can just as well start from an examination of the history of one’s own research. Such an approach need not succumb to navel-gazing. Instead, such historical self-reflection possibly points to the creeping (and thereby largely unconscious) shifts in meaning that accompany various fashions (consider the swirling “turns” of recent years), which affect the social scientific vocabulary (historiographic, philosophical, pedagogical, psychological sociological, etc.). By rendering such developments explicit, the epistemological wrestling with the stream of experiences we call 'history', a process that can be chaotic, may in the future perhaps be somewhat less sloppy. Admittedly, even the most critical concepts that emerged from our own work were not always used with methodological care and/or theoretical purity. [less ▲]

About the Choquet integral as a tool to aggregate utilities in the presence of interacting points of view

Scientific Conference (1999, August)

One basic assumption to consider an additive utility function is the preferential independence. When interacting criteria are considered, this condition might be violated and a substitute to the classical ... [more ▼]

One basic assumption to consider an additive utility function is the preferential independence. When interacting criteria are considered, this condition might be violated and a substitute to the classical weighted mean has to be adopted. The Choquet integral seems to be an adequate aggregation operator that extends the weighted mean and the ordered weighted average (OWA). The axiomatics that supports the Choquet integral is presented as well as its behavioral analysis with regards to veto and favor effects, degree of disjunction and measure of dispersion. One illustrative example of its application in the field of MCDM is provided. [less ▲]

About the flexibility of the minus sign in solving equations

in Proceedings of the 26th International conferecne for the Psychology of M athematics Education (PME 26) (2002)

About Time Variations of Gravity

in Computational Seismology and Geodynamics (2001)

Advances in gravity instrumentation have allowed for the determination of the absolute acceleration of gravity to a precision of 3–5 μGal and observations of tidally driven changes in gravity on the order ... [more ▼]

Advances in gravity instrumentation have allowed for the determination of the absolute acceleration of gravity to a precision of 3–5 μGal and observations of tidally driven changes in gravity on the order of nanogals. With observations of gravity and changes in gravity at these levels of precision we are able to investigate problems such as the resonance of the Earth's liquid inner core, to discriminate between the various ocean tidal models, understand the effects of atmospheric pressure loading on gravity observations, and perhaps to measure ice mass changes in Greenland. In this paper, we report on some of our results using absolute and superconducting gravimeter data. We describe a project to establish a site for international comparisons of absolute gravimeters in Luxembourg. [less ▲]

Abrogation, ou vers un nouvel objet juridique non identifié : l’Etat à deux Constitutions

Article for general public (2014)

Abschlussbericht des vom Forschungsausschuss der Universität des Saarlandes geförderten Forschungsprojekts "Widersprüche in Personenbeschreibungen: Wie beeinflusst die Textkohärenz das Verstehen inkonsistenter Personmerkmale?"

Report (2005)