Getting beyond the surface : using geometric data analysis in cultural sociology

Geometric Data Analysis (GDA) refers to a group of statistical techniques that disclose underlying patterns in categorized data. GDA represents categories of variables and individuals as points in a multi-dimensional Euclidean space. This contribution presents some of GDA’s analytic properties and their connection to a relational approach of the social world. Moreover, the potential of GDA for cultural sociology will be discussed. What does GDA add to insights based on ‘orthodox’ correlational techniques and exactly how does it get beyond the surface of things? Research on the association between cultural consumption and socio-economic background will serve as an illustration

A New Approach for Quality Management in Pervasive Computing Environments

This paper provides an extension of MDA called Context-aware Quality Model Driven Architecture (CQ-MDA) which can be used for quality control in pervasive computing environments. The proposed CQ-MDA approach based on ContextualArchRQMM (Contextual ARCHitecture Quality Requirement MetaModel), being an extension to the MDA, allows for considering quality and resources-awareness while conducting the design process. The contributions of this paper are a meta-model for architecture quality control of context-aware applications and a model driven approach to separate architecture concerns from context and quality concerns and to configure reconfigurable software architectures of distributed systems. To demonstrate the utility of our approach, we use a videoconference system.Comment: 10 pages, 10 Figures, Oral Presentation in ECSA 201

De-institutionalization of highbrow culture? Curricula in secondary education in Flanders, 1930-2000

It is claimed that from the sixties onwards the educational system has contributed to the erosion of the institutionalized character of fine arts. In line with a worldwide trend towards more student-centred curricula—some authors argue that the exclusive focus on high culture in school curricula has dwindled. However, empirical research to substantiate these claims is scarce. We focus on secondary education in Flanders to study the centrality of high culture in the educational system: can we discover trends in what forms of culture are represented at school, and do these trends differ between tracks? Our analyses indicate that—in the period 1930-2000—both high and low culture is increasingly being represented in the school context. However, we find that the increment in high culture is especially situated in the academic track—the most prestigious track, which prepares for higher education. These results suggest a persisting institutional embeddedness of high culture in the educational system, and especially in its dominant track

On D-branes in Type 0 String Theory

Using boundary states we derive the presence of (chiral) fermions on the intersection of type 0 D-branes. The corresponding anomalous couplings on the branes are then computed. Furthermore, we discuss systems of branes sitting at $A_n$ singularities. In particular, the massless spectrum on the branes is derived, and a boundary state description is given.Comment: 13 pages, LaTeX2e, 1 figure; v2: presentation made more self-contained, version to be published in Phys. Lett.

Homogenization of two fluid flow in porous media

The macroscopic behavior of air and water in porous media is often approximated using Richards’ equation for the fluid saturation and pressure. This equation is parametrized by the hydraulic conductivity and water release curve. In this paper, we use homogenization to derive a general model for saturation and pressure in porous media based on an underlying periodic porous structure. Under an appropriate set of assumptions, i.e., constant gas pressure, this model is shown to reduce to the simpler form of Richards’ equation. The starting point for this derivation is the Cahn-Hilliard phase field equation coupled with Stokes equations for fluid flow. This approach allows us, for the first time, to rigorously derive the water release curve and hydraulic conductivities through a series of cell problems. The method captures the hysteresis in the water release curve and ties the macroscopic properties of the porous media to the underlying geometrical and material properties

Heterogeneous component interactions: Sensors integration into multimedia applications

Resource-constrained embedded and mobile devices are becoming increasingly common. Since few years, some mobile and ubiquitous devices such as wireless sensor, able to be aware of their physical environment, appeared. Such devices enable proposing applications which adapt to user's need according the context evolution. It implies the collaboration of sensors and software components which differ on their nature and their communication mechanisms. This paper proposes a unified component model in order to easily design applications based on software components and sensors without taking care of their nature. Then it presents a state of the art of communication problems linked to heterogeneous components and proposes an interaction mechanism which ensures information exchanges between wireless sensors and software components

(Non-)Anomalous D-brane and O-plane couplings: the normal bundle

The direct string computation of anomalous D-brane and orientifold plane couplings is extended to include the curvature of the normal bundle. The normalization of these terms is fixed unambiguously. New, non-anomalous gravitational couplings are found.Comment: 6 pages, latex, no figures; version accepted for publication in Phys. Lett.