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.     

Reasons of the Heart: Weber and Arendt on Emotion in Politics

In many fields of contemporary thought and scholarship, the classical construct of a clean division between “emotion” and “reason” has been revised. As a result, politics is no longer seen as a sphere in need of protection against the dark forces of emotion that might creep in where they do not belong. Against the backdrop of this conceptual shift the article examines the theme of emotion in the political thought of Max Weber and Hannah Arendt. The aim is to gauge the extent to which these thinkers can be read as having prepared the ground for a reassessment of the role of emotion in public life that moves beyond the classical European dichotomy of reason vs. passion. Two claims are being made. Both thinkers were still immersed in a conceptual world in which emotions were irrational, disruptive of appropriate ways of reasoning and as such closely linked to the dark powers of the masses. Yet both also held subtler positions on the relationship between reason, emotion, and democracy, and these positions are less well understood.     

Dewey’s concept of experience for inquiry-based landscape drawing during field studies

The epistemological and educational philosophy of John Dewey is used as a theoretical basis to analyze processes of knowledge construction during geographical field studies. The experience of landscape drawing as a method of inquiry and a starting point for research-based learning is empirically evaluated. The basic drawing skills are acquired through an online drawing course. The main aim is to foster the self-organized acquisition of relevant skills to explore, describe and reflect on subjective mental and linguistic concepts in relation to scientific landscape models. The results, based on an evaluation of the students’ drawings, their responses to questionnaires and a review of students’ “reflective notes”, indicate that the approach motivated students to learn about the processes which formed the landscape and that the students perceived the method of inquiry after Dewey as a way to overcome cognitive dissonance.     

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