Institutions du travail et etat‐nation histoire d'un mariage à l'avenir incertain

Concepts of unemployment or of the labour market are not abstract, but develop from each society's own particular logic. Taking the examples of Germany and France at the end of the nineteenth century, it is possible to see how these concepts were constructed in specific national contexts, and how they were then used in practice. This analysis leads us to rethink current ideas about work and unemployment, and to ask what their future will be in a united Europe.     

Equality of Women's Economic Status? A Major Bone of Contention in the International Gender Politics Emerging During the Interwar Period*

This study brings together the often disparate scholarship on the League of Nations and the ILO. It follows the interactions between the League, women internationalists, and the ILO, which evolved around the question of woman-specific labor legislation and the equality of women's status. These interactions resulted in a broadening mandate of international gender policies while deepening the institutional and legal distinction between women's ‘political and civil’ as opposed to their ‘economic’ status. The ILO insisted on certain forms of women-specific labor regulation as a means of conjoining progressive gender and class politics, and was anxious to ensure its competence in all matters concerning women's economic status. The gender equality doctrine gaining ground in the League was rooted in a liberal-feminist paradigm which rejected the association of gender politics with such class concerns, and indeed aimed to force back the ILO's politics of gender-specific international labor standards. As a result of the widening divide between the women's policies of the League and the ILO, the international networks of labor women reduced their engagement with women's activism at the League. The developments of the 1930s deepened the tension between liberal feminism and feminisms engaging with class inequalities, and would have problematic long-term consequences for international gender politics.     

3D numerical modeling of hydrothermal processes during the lifetime of a deep geothermal reservoir

Understanding hydrothermal processes during production is critical to optimal geothermal reservoir management and sustainable utilization. This study addresses the hydrothermal (HT) processes in a geothermal research doublet consisting of the injection well E GrSk3/90 and production well Gt GrSk4/05 at the deep geothermal reservoir of Groß Schönebeck (north of Berlin, Germany) during geothermal power production. The reservoir is located between ?4050 to ?4250 m depth in the Lower Permian of the Northeast German Basin. Operational activities such as hydraulic stimulation, production (T = 150°C; Q = ?75 m³ h^?1; C = 265 g l^?1) and injection (T = 70°C; Q = 75 m³ h^?1; C = 265 g l^?1) change the HT conditions of the geothermal reservoir. The most significant changes affect temperature, mass concentration and pore pressure. These changes influence fluid density and viscosity as well as rock properties such as porosity, permeability, thermal conductivity and heat capacity. In addition, the geometry and hydraulic properties of hydraulically induced fractures vary during the lifetime of the reservoir. A three‐dimensional reservoir model was developed based on a structural geological model to simulate and understand the complex interaction of such processes. This model includes a full HT coupling of various petrophysical parameters. Specifically, temperature‐dependent thermal conductivity and heat capacity as well as the pressure‐, temperature‐ and mass concentration‐dependent fluid density and viscosity are considered. These parameters were determined by laboratory and field experiments. The effective pressure dependence of matrix permeability is less than 2.3% at our reservoir conditions and therefore can be neglected. The results of a three‐dimensional thermohaline finite‐element simulation of the life cycle performance of this geothermal well doublet indicate the beginning of thermal breakthrough after 3.6 years of utilization. This result is crucial for optimizing reservoir management. Geofluids (2010) 10 , 406–421     

Early prehistoric sedentism and seasonal animal exploitation in the Caribbean lowlands of Colombia

San Jacinto 1 represents a special-purpose settlement that was used by late Archaic foraging groups who logistically moved from base camps to special-purpose camps in order to collect and process subsistence resources at the onset of the dry season in the Caribbean savannas of northern Colombia. Situated in an optimal location for permanent water and seasonal concentrations of dry season subsistence items, the site’s location was part of a logistic strategy in which specific task groups were moved to resources during a short season of availability. Preserved vertebrate and invertebrate faunas at San Jacinto conform to expectations about assemblage ubiquity, richness, and evenness or equitability within the early occupational strata at the site. Specific animals including turtles and fish were pursued, and may have been processed with C3 plants and grasses in ubiquitous earth ovens. Certain local aquatic invertebrates were also procured along with the collection of specific extra-local gastropods.     

Eine verklungene Novelle Zur Deutung des PSI 725

This paper treats a rhetorical fragment which is preserved in Stobaeus from four points of view. (1) The speech was delivered in Alexandria by a travelling rhetor. (2) There is a philosophical background with a Cynic flavour to this oration, which advocates concord within the city. (3) An analysis of the literary form shows that this text can be regarded as an example of a λαλι?. (4) The date has been very much debated, but a study of the vocabulary makes a date in the second half of the second century A.D. seem plausible.