Search results for "XEOL"

Editorial Judgments

2009

Based on participant observation of editors’ decisions for a sociology journal, the paper investigates the peer review process. It shows a hidden interactivity in peer review, which is overlooked both by authors who impute social causes to unwelcome decisions, and by the preoccupation with ‘reliability’ prevalent in peer review research. This study shows that editorial judgments are: (1) attitudes taken by editorial readers toward various kinds of text, as a result of their membership in an intellectual milieu; (2) impressions gained through the reading process (through a ‘virtual interaction’ with the author); and (3) rationalizing statements about manuscripts made by editors and addressed…

The Limit Notion at Three Educational Levels in Three Countries

2022

AbstractThis paper documents how the limit concept is treated in high school, at a university and in teacher education in England, France and Sweden. To this end we make use of vignettes, data-grounded accounts of the situation at the three levels in the three countries. These are analysed using the Anthropological Theory of the Didactic (ATD). While university praxeologies are relatively similar across the three countries, greater differences manifest themselves in high school and teacher education. For instance, at the high school level, in France a local praxeology on the limits of sequences is taught, which is not the case in England or Sweden. Results from the analysis of limits are ex…

Moody habitus: Bourdieu with existential feelings

2020

Transdisciplinary Discourses on Cross-Border Cooperation in Europe

2019

A new tool for nanoscale X-ray absorption spectroscopy and element-specific SNOM microscopy.

2007

Abstract Investigations of complex nanostructured materials used in modern technologies require special experimental techniques able to provide information on the structure and electronic properties of materials with a spatial resolution down to the nanometer scale. We tried to address these needs through the combination of X-ray absorption spectroscopy (XAS) using synchrotron radiation microbeams with scanning near-field optical microscopy (SNOM) detection of the X-ray excited optical luminescence (XEOL) signal. The first results obtained with the prototype instrumentation installed at the European Synchrotron Radiation Facility (Grenoble, France) are presented. They illustrate the possibi…

Discussing Mathematical Learning and Mathematical Praxeologies from a Subject Scientific Perspective

2018

International audience; This programmatic contribution discusses the link between concepts from Anthropological Theory of Didactics (ATD) and the “subject-scientific point of view” according to Holzkamp (1985, 1993). The main common concern of ATD and the subject-scientific approach is to conceptualize and analyse “objects” like “institutionalized mathematical knowledge” and “university” not as conditions that cause reactions but essentially as meanings in the sense of generalized societal reified action possibilities. The link of both approaches is illustrated by the issue of “real numbers” in the transition from school to university: Hypotheses are derived for further actual-empirical res…

From single to multi-variable Calculus: a transition?

2018

International audience; We recently used the notion of praxeology from the Anthropological Theory of the Didactic to model the knowledge that is necessary for students to learn in order to succeed in an undergraduate multivariable Calculus course. We considered the presence and absence of elements of the knowledge to be taught, as proposed by curricular documents, in the knowledge to be learned, as indicated by final exams. Our results indicate that the mathematical activities expected of students at this level align with the activities observed in differential and integral Calculus, where exercise-driven assessments set students' work mainly in the recognition of types of tasks and recolle…

Contraintes et libertés textuelles

2006

The article starts from a conception of language according to which the semiotic units that speakers use do not emanate from individual mental processes but from the socialization of representation instruments which, being individual elements initially, have later been involved in processes of communicative circulation. In the same way that, in each language, verbal uses are limited by a series of restrictions in the constitution of some phonic, lexical or morphosyntactic structures, there are also some other constraints that affect textual genres. This means that these are the product of the history of the uses of language and that they work at a praxeologic level. These ideas apply to the…