1,200 research outputs found
Trabajo y gĂ©nero: mujeres emprendedoras de la SubsecretarĂa de EconomĂa Solidaria de Rosario
La economĂa solidaria se presenta como una forma alternativa que ha implicado grandes cambios
en relaciĂłn a la categorĂa de trabajo y con respecto a los vĂnculos establecidos entre los gĂ©neros. 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, realizĂĄndolo de manera mĂĄs informal. Sigue vigente en la actualidad, ahora apropiada por el Estado. RepresentarĂa
para las mujeres el espacio donde poder pensar las posibilidades
de concreciĂłn de derecho al
trabajo y del rompimiento de estereotipos de gĂ©nero. Se retomarĂĄ en este artĂculo el caso especĂfico 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 DĂŒrre und einer Hitzewelle hat eine geringe Auftrittswahrscheinlichkeit, aber potentiell groĂe Auswirkungen auf z.B. Gesellschaft und Ăkosysteme. In dieser Arbeit wurden verschiedene Aspekte von kombinierten Temperatur- und Niederschlagsextremen und ihre zukĂŒnftigen KlimaĂ€nderungssignale anhand eines Ensembles regionaler Klimasimulationen untersucht
Greatness and the Convertibility of Literary Capital: W. D. Howells and Black Writers
Opening with James Weldon Johnsonâs discourse on artistic greatness, I discuss William Dean Howellsâs 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 Fâ 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 Fâ 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 ÎCp stays positive and even
increases slightly upon charging the Na + ion, it decreases upon charging the
Fâ ion and becomes negative beyond an ion charge of q = â0.3e. 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 Ă
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
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