Search results for "structuration"
showing 10 items of 26 documents
Heterogeneity of host-parasite relationships : ecological and evolution significance
2005
Although parasites have been studied for a long time, the major knowledge concern parasite which have medical or veterinary interest. Whereas they are omnipresent in the nature, the role of parasite infections on natural populations is poorly understood. One of the aim of this work was to study the pathogenicity of two groups of parasites (ticks and Haemosporidae) among natural populations of blackbirds. The study revealed that both parasites are associated with body condition and immune response. However, the study of an urban blackbird population did not confirm the effect of Haemosporidae on the survey and on the population dynamic.The impact of spatial pattern on the relation between ho…
Day-to-day routines of media platform use in the digital age: A structuration perspective
2020
Using Giddens's structuration theory, this study examines how the routinized use of traditional and new media platforms differently align with the structures of everyday life. We analyzed data from a quantitative diary study in Germany to find that new media platforms specifically affect societal structuration by blurring the lines between obligations and leisure time. The part played by routines in the use of new media platforms was less strongly connected to clock time compared to traditional media platforms. Consequently, the findings indicate both a vanishing potential for media platform use as a social zeitgeber and the relevance of rules as structuring elements.
Polarization and suburbanisation in Warsaw
2001
The economic transition in Poland leads to a restructuration of economic activities which affects spatial patterns of cities, especially in Warsaw. Analyzing the location and re-location of population and employment in Poland’s capital allows to enlarge the debate on the suburbanization forms to the Central and Oriental European Countries. The results support the fact that the city center is still largely the most important district in terms of population andemployment, so that in 1999 the city keeps a strong monocentric character. However, from 1994 to 1999, population and employment move towards the Warsaw’s suburbs. Two significant observations, namely the suburbanization of retailing an…
Entre indemnisation et effort de reclassement Quel compromis social lors des restructurations ?
2012
National audience; Alors que l’évolution des cadres normatifs va tendanciellement dans le sens d’un dialogue social renforcé, l’observation récente des phénomènes de restructuration en France semble indiquer une recrudescence de la conflictualité. Ce constat, pour autant qu’il soit valide, est porteur de questionnements : le recours au rapport de force constitue-t-il une stratégie préférable à l’identification de solutions négociées ? Peut-on faire un lien entre la forme prise par l’interaction sociale à l’occasion des restructurations et le type de mesures envisagées dans les compromis sociaux ?
Mechanical behaviour of Palermo and Marsala calcarenites (Sicily), Italy
2016
Abstract This paper aims at finding a framework for the Sicilian Calcarenites relating the strength and the deformability of these materials to their geological and structural features: fabric, bonding, initial and actual specific volume. In particular, this study sets out to separate the effects of fabric and of bonding on the mechanical response. The investigated lithotypes, Calcarenites from Palermo and Marsala, outcropping in many areas of southwestern Sicily, are characterized by sudden changes in their deformability, strength and permeability characteristics. The geotechnical identification, by means of computerized axial tomography and thin section petrographic analysis suggested a s…
European Educational Systems. The Framework of Tradition, Systemic Expansion and Challenge for Restructuring
2000
International audience
Destructuration of typical Sicilian calcarenites
2010
The paper discusses some interesting features of Sicilian fine grain calcarenites. Uniaxial, triaxial, oedometer and isotropic compression tests were undertaken on intact specimens of two types of calcarenite in order to investigate their mechanical characteristics. It was found that the strength and deformability is significantly influenced by the structure (fabric and bonding) and by the destructuration processes. A better understanding of fracture development behavior is gained through a combination of acoustic emission and photographic monitoring on non-homogeneous samples with natural pre-existing heterogeneities due to cementation or to density. The results show that the destructurati…
Converging paths to Notes
1995
The nature of the information systems needed in a networked firm is not well known: nor is the process leading to particular solutions. Describes a small computer‐consulting company which works as a network of independent consultants, and analyses the slow and circuitous path from recognizing its IS/IT needs to its commitment to a particular solution as seven steps; using ideas of structuration theory as a focus. During the selection process, participants formed new interpretations of the firm, of technology, and of the appropriate process towards a feasible solution. New resources – both material and symbolic – were acquired to enable the search. Existing “norms” provided boundaries for th…
Direct experimental observation of mesoscopic fluorous domains in fluorinated room temperature ionic liquids
2017
Fluorinated room temperature ionic liquids (FRTILs) represent a class of solvent media that are attracting great attention due to their IL-specific properties as well as features stemming from their fluorous nature. Medium-to-long fluorous tails constitute a well-defined apolar moiety in the otherwise polar environment. Similarly to the case of alkyl tails, such chains are expected to result in the formation of self-assembled fluorous domains. So far, however, no direct experimental observation has been made of the existence of such structural heterogeneities on the nm scale. We report here the first experimental evidence of the existence of mesoscopic spatial segregation of fluorinated dom…
Campagnes, migrations internationales et nouvel ordre social ethnicisé. La zone viticole Utiel-Requena (Espagne)
2021
Utiel-Requena est une zone viticole traditionnelle de la province de Valence (Espagne), qui a connu une importante restructuration productive, l’arrivée de travailleurs immigrants et leur enracinement familial. Cet article aborde cette installation et les changements qu’elle a générés dans ces municipalités. Notre analyse des différentes sphères de la vie locale, telles que le travail, les espaces et services publics, la coexistence et les représentations symboliques, montre la constitution d’un ordre social ethnicisé qui consolide la position subalterne des immigrants et de leurs descendants. Utiel-Requena is a traditional wine-growing area in the province of Valencia (Spain), which has un…