229 research outputs found
Intersection between class and gender and its effect on the quality of employment in Chile
Indexación: Web of Science; Scopus.En este artículo se analiza el efecto de la intersección entre clase y género sobre la calidad
del empleo en Chile. La medida de posición de clase utilizada está basada en la propuesta de
Erik O. Wright y la calidad del empleo en una medida multidimensional, que incluye un índice
de condiciones objetivas de empleo y dos índices de condiciones subjetivas (motivación en
el trabajo y percepción del control sobre el proceso de trabajo). Los resultados demuestran
que la clase y el género determinan diferencias significativas en la calidad objetiva y subjetiva
del empleo. Sin embargo, los datos también indican que el género (particularmente, el
hecho de ser mujer) no actúa necesariamente como “amplificador” de las desigualdades
de clase observadas en el mercado laboral. A partir de esto, al final del artículo se plantean
algunas reflexiones sobre cómo opera la intersección entre clase y género en el mercado
laboral chileno.This study explores the impact of the intersection between class and gender on the quality
of employment in Chile. The method used to measure social class position is based on the
work of Erik O. Wright, while, for the quality of employment, a multidimensional measurement
was used, including one index for objective working conditions and two indices for subjective
ones (motivation on the job and the perception of control over work processes). The results
demonstrate that class and gender give rise to signifcant differences in objective and
subjective job quality. However, the data also indicate that gender (more specifcally, the fact
of being female) does not necessarily amplify the class-based inequalities observed in the
labour market. Drawing on these fndings, a number of thoughts about how the class/gender
intersection operates in the Chilean labour market are shared in the fnal section of this studyhttp://hdl.handle.net/11362/4079
Tsallis and Kaniadakis statistics from a point of view of the holographic equipartition law
In this work, we have illustrated the difference between both Tsallis and
Kaniadakis entropies through cosmological models obtained from the formalism
proposed by Padmanabhan, which is called holographic equipartition law.
Similarly to the formalism proposed by Komatsu, we have obtained an extra
driving constant term in the Friedmann equation if we deform the Tsallis
entropy by Kaniadakis' formalism. We have considered initially Tsallis entropy
as the Black Hole (BH) area entropy. This constant term may lead the universe
to be in an accelerated mode. On the other hand, if we start with the
Kaniadakis entropy as the BH area entropy and then by modifying the Kappa
expression by Tsallis' formalism, the same constant, which shows that the
universe have an acceleration is obtained. In an opposite limit, no driving
inflation term of the early universe was derived from both deformations.Comment: 8 pages, preprint format. Final version to appear in Europhysics
Letter
Preferential attachment growth model and nonextensive statistical mechanics
We introduce a two-dimensional growth model where every new site is located,
at a distance from the barycenter of the pre-existing graph, according to
the probability law , and is attached to
(only) one pre-existing site with a probability ; is the number of links of the site of the
pre-existing graph, and its distance to the new site). Then we
numerically determine that the probability distribution for a site to have
links is asymptotically given, for all values of , by , where is the function
naturally emerging within nonextensive statistical mechanics. The entropic
index is numerically given (at least for not too large) by , and the characteristic number of links by . The particular case belongs to the same
universality class to which the Barabasi-Albert model belongs. In addition to
this, we have numerically studied the rate at which the average number of links
increases with the scaled time ; asymptotically, , the exponent being close to for , and zero otherwise.
The present results reinforce the conjecture that the microscopic dynamics of
nonextensive systems typically build (for instance, in Gibbs -space for
Hamiltonian systems) a scale-free network.Comment: 5 pages including 5 figures (the original colored figures 1 and 5a
can be asked directly to the authors
Revealing hidden symmetries and gauge invariance of the massive Carroll-Field-Jackiw model
In this paper we have analyzed the improved version of the Gauge Unfixing
(GU) formalism of the massive Carroll-Field-Jackiw model, which breaks both the
Lorentz and gauge invariances, to disclose hidden symmetries to obtain gauge
invariance, the key stone of the Standard Model. In this process, as usual, we
have converted this second-class system into a first-class one and we have
obtained two gauge invariant models. We have verified that the Poisson brackets
involving the gauge invariant variables, obtained through the GU formalism,
coincide with the Dirac brackets between the original second-class variables of
the phase space. Finally, we have obtained two gauge invariant Lagrangians
where one of them represents the Stueckelberg form.Comment: revised version. To appear in Europhysics Letter
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