Trabajo y género: mujeres emprendedoras de la Subsecretaría de Economía Solidaria de Rosario

La economía solidaria se presenta como una forma alternativa que ha implicado grandes cambios en relación a la categoría de trabajo y con respecto a los vínculos establecidos entre los géneros. Adquiere importancia en Argentina durante la crisis del 2001, siendo en un principio la respuesta de algunos sectores de la sociedad para poder satisfacer sus necesidades, realizándolo de manera más informal. Sigue vigente en la actualidad, ahora apropiada por el Estado. Representaría para las mujeres el espacio donde poder pensar las posibilidades de concreción de derecho al trabajo y del rompimiento de estereotipos de género. Se retomará en este artículo el caso específico de la ciudad de Rosario.The solidarity economy appears as an alternative form that has involved big changes in relation to the category of work and with regard to the links established between the genders .It becomes significant in Argentina during the 2001 crisis, it was at first the response of some sectors of society as a way of satisfying their needs, carrying it out in a more informal way .It is still current at present, but it has been appropriated by the State. This would represent to women entrepreneurs the place to think about the possibilities of achieving the right to work and to break down stereotypes of gender. Taking up in this paper the specific case of Rosario.Fil: Sedlmeier, Jorgelina. Universidad Nacional de Rosario; Argentina

Near future changes of compound extreme events from an ensemble of regional climate simulations

Das gleichzeitige Auftreten mehrerer Extremereignisse, z.B. einer Dürre und einer Hitzewelle hat eine geringe Auftrittswahrscheinlichkeit, aber potentiell große Auswirkungen auf z.B. Gesellschaft und Ökosysteme. In dieser Arbeit wurden verschiedene Aspekte von kombinierten Temperatur- und Niederschlagsextremen und ihre zukünftigen Klimaänderungssignale anhand eines Ensembles regionaler Klimasimulationen untersucht

Greatness and the Convertibility of Literary Capital: W. D. Howells and Black Writers

Opening with James Weldon Johnson’s discourse on artistic greatness, I discuss William Dean Howells’s assessment of Paul Laurence Dunbar and Charles W. Chesnutt through the lens of the convertibility of literary capital, developed with Pierre Bourdieu. From within the racial taxonomy and with white middle-class readers as implied addressees, Howells conceives of both writers as participating in a literary market, a field structured by the tenets of realism. Howells endows Dunbar with universal literary capital and creates a regional affiliation that breaches the color line, before he singles out his poems written in vernacular notation as lasting contributions and asserts the valence of such notation as general poetic practice. On Chesnutt he bestows literary capital by marking and converting two innovations: the genre of the short story and the representation of a world in-between the racial divide. In turn, the convertibility of that world is secured by a comparison of social class habits

Near future changes of compound extreme events from an ensemble of regional climate simulations

In this work, the climate signal of temperature and precipitation extremes, namely hot and dry extremes in summer and cold and wet extremes in winter, was analysed for the near future (2021-2050). The analysis is based on an ensemble of 12 members at 7km horizontal resolution, generated with the regional climate model COSMO-CLM

Solvation thermodynamics and heat capacity of polar and charged solutes in water

The solvation thermodynamics and in particular the solvation heat capacity of polar and charged solutes in water is studied using atomistic molecular dynamics simulations. As ionic solutes we consider a F− and a Na+ ion, as an example for a polar molecule with vanishing net charge we take a SPC/E water molecule. The partial charges of all three solutes are varied in a wide range by a scaling factor. Using a recently introduced method for the accurate determination of the solvation free energy of polar solutes, we determine the free energy, entropy, enthalpy, and heat capacity of the three different solutes as a function of temperature and partial solute charge. We find that the sum of the solvation heat capacities of the Na+ and F− ions is negative, in agreement with experimental observations, but our results uncover a pronounced difference in the heat capacity between positively and negatively charged groups. While the solvation heat capacity ΔCp stays positive and even increases slightly upon charging the Na + ion, it decreases upon charging the F− ion and becomes negative beyond an ion charge of q = −0.3e. On the other hand, the heat capacity of the overall charge-neutral polar solute derived from a SPC/E water molecule is positive for all charge scaling factors considered by us. This means that the heat capacity of a wide class of polar solutes with vanishing net charge is positive. The common ascription of negative heat capacities to polar chemical groups might arise from the neglect of non-additive interaction effects between polar and apolar groups. The reason behind this non-additivity is suggested to be related to the second solvation shell that significantly affects the solvation thermodynamics and due to its large spatial extent induces quite long-ranged interactions between solvated molecular parts and groups

The spontaneous curvature of the water-hydrophobe interface

The temperature-dependent solvation of hydrophobic solutes in water is investigated by largescale molecular dynamics simulations. A simultaneous fit of solvation free energies for spheres and cylinders with radii up to R = 2 nm yields a negative Tolman length on the order of 1 Å at room temperature, equivalent to a spontaneous curvature that favors water droplets over cavities. Pronounced crossover effects of the surface free energy are analyzed in terms of higherorder curvature corrections and water-discreteness effects