2,836 research outputs found
Application of the war of attrition game to the analysis of intellectual property disputes
In many developing countries intellectual property infringement and the
commerce of pirate goods is an entrepreneurial activity. Digital piracy is very
often the only media for having access to music, cinema, books and software. At
the same time, bio-prospecting and infringement of indigenous knowledge rights
by international consortiums is usual in places with high biodiversity. In
these arenas transnational actors interact with local communities. Accusations
of piracy often go both ways. This article analyzes the case of southeast
Mexico. Using a war of attrition game theory model it explains different
situations of intellectual property rights piracy and protection. It analyzes
different levels of interaction and institutional settings from the global to
the very local. The article proposes free IP zones as a solution of IP
disputes. The formation of technological local clusters through Free
Intellectual Property Zones (FIPZ) would allow firms to copy and share de facto
public domain content for developing new products inside the FIPZ. Enforcement
of intellectual property could be pursuit outside of the FIPZ. FIPZ are
envisioned as a new type of a sui generis intellectual property regime
Spin effects in strong-field laser-electron interactions
The electron spin degree of freedom can play a significant role in
relativistic scattering processes involving intense laser fields. In this
contribution we discuss the influence of the electron spin on (i) Kapitza-Dirac
scattering in an x-ray laser field of high intensity, (ii) photo-induced
electron-positron pair production in a strong laser wave and (iii) multiphoton
electron-positron pair production on an atomic nucleus. We show that in all
cases under consideration the electron spin can have a characteristic impact on
the process properties and their total probabilities. To this end,
spin-resolved calculations based on the Dirac equation in the presence of an
intense laser field are performed. The predictions from Dirac theory are also
compared with the corresponding results from the Klein-Gordon equation.Comment: 9 pages, 6 figure
PEDAGOGÍA DE LA FRATERNIDAD EN SITUACIONES DE RIESGO, FORMACIÓN INTEGRAL PARA LA VIDA. (PEDAGOGY OF FRATERNITY IN SITUATIONS OF RISK, ALL ROUND FORMATION FOR LIFE)
El presente artículo pretende aportar en la fundamentación de la pedagogía de la Fraternidad en Situaciones de Riesgo, como una nueva visión de la pedagogía en la que están presentes muchos elementos de otras teorías pero que se asumen desde una perspectiva diferente, cuya meta es: primero, permitir que los procesos educativos lleven a generar una sociedad más justa y fraterna en la que se genere un espacio de amistad, confianza y estima recíproca; segundo, que el conocimiento aumente siempre por el deseo de dar respuestas a las problemáticas de la sociedad y tercero generar un espacio en el que se sienta la familia.AbstractThis article aims to contribute to the foundation of the pedagogy of fraternity in situations of risk, as a new vision of the pedagogy in which many elements of other theories are present, but which are taken from a different perspective, whose goal is to allow educational processes that make a fairer and more fraternal society possible, by generating friendship, trust, and reciprocal esteem, in the first place, that knowledge is always increased as a manner to solve the answers to the issues of society, in the second place, and in the third place, it can generate a space in which the family can be felt
The Environment of HII Galaxies revisited
We present a study of the close (< 200 kpc) environment of 110 relatively
local (z< 0.16) HII galaxies, selected from the Sloan Digital Sky Survey (SDSS;
DR7). We use available spectroscopic and photometric redshifts in order to
investigate the presence of a close and possibly interacting companion galaxy.
Our aim is to compare the physical properties of isolated and interacting HII
galaxies and investigate possible systematic effects in their use as
cosmological probes. We find that interacting HII galaxies tend to be more
compact, less luminous and have a lower velocity dispersion than isolated ones,
in agreement with previous studies on smaller samples. However, as we verified,
these environmental differences do not affect the cosmologically important
L_{H{\beta}}-{\sigma} correlation of the HII galaxies.Comment: 5 pages, accepted for publication in A&
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