scholarly journals Quasifree kaon photoproduction from nuclei in a relativistic approach

1999 ◽  
Vol 61 (1) ◽  
Author(s):  
L. J. Abu-Raddad ◽  
J. Piekarewicz
Keyword(s):  
Relativistic Approach

Asymmetric nuclear matter in the relativistic approach

1988 ◽  
Vol 483 (3-4) ◽  
pp. 479-492 ◽  
Author(s):  
M. Lopez-Quelle ◽  
S. Marcos ◽  
R. Niembro ◽  
A. Bouyssy ◽  
Nguyen Van Giai
Keyword(s):  
Nuclear Matter ◽  
Asymmetric Nuclear Matter ◽  
Relativistic Approach

GIANT RESONANCES AND ASYMMETRY ENERGY

2006 ◽  
Vol 15 (07) ◽  
pp. 1347-1356
Author(s):  
ZHONG-YU MA ◽  
BAO-QIU CHEN ◽  
JUN LIANG ◽  
LI-GANG CAO
Keyword(s):  
Mean Field Theory ◽  
Random Phase ◽  
Mean Field ◽  
Microscopic Analysis ◽  
Giant Resonances ◽  
Relativistic Mean Field ◽  
Nuclear Ground State ◽  
Relativistic Approach ◽  
Asymmetry Energy ◽  
The Asymmetry

A microscopic analysis of the asymmetry energy is performed through the investigation of nuclear giant resonances in the relativistic approach. Nuclear ground state properties are calculated in an extended relativistic mean-field theory plus BCS method, where the contribution of the resonant continuum to pairing correlations is properly treated. The nuclear giant resonances are investigated in the relativistic random phase approximation (RRPA) or quasi-particle RRPA. Special emphases are paid to the correlation between the giant dipole resonance or pygmy resonance and the density dependence of the asymmetry energy.

Relativistic approach fore±scattering from argon

1991 ◽  
Vol 43 (3) ◽  
pp. 1275-1289 ◽  
Author(s):  
Sultana N. Nahar ◽  
J. M. Wadehra
Keyword(s):  
Relativistic Approach

Prologue

2021 ◽  
pp. 9-30
Author(s):  
Daniel Sheehy
Keyword(s):  
Fine Arts ◽  
Institutional Culture ◽  
National Endowment ◽  
Arts Funding ◽  
Cultural Traditions ◽  
University Courses ◽  
The Arts ◽  
Academic Activities ◽  
Relativistic Approach ◽  
Art Forms

What happens when an ethnographic, cultural relativistic approach to arts funding runs head-on into a “fine arts” approach governed by assumptions of excellence, appropriate targets of funding, and methods of distributing funds? This chapter, based on twenty-three years (1978–2000) working at the National Endowment for the Arts, will respond to this question through my personal conceptual and methodological challenges and experiences. When the National Endowment for the Arts and National Endowment for the Humanities were created in 1965, there was talk of creating a third endowment for folklore. This effort was unsuccessful, but it points to the belief at the time that American folk art traditions would not be well served by the federal endowments. There was much truth to this, as I and my colleagues regularly bumped into “glass ceilings and walls” that silently worked against us in supporting our field of hundreds of cultural traditions and thousands of art forms. My ethnomusicological training and experience were invaluable, not only in understanding the art forms and responding to their needs, but also understanding the biases of the institutional culture in which we were housed. At the same time, while certain aspects of my training at UCLA helped in navigating the waters of arts funding, much of the knowledge I applied to my work was learned “on the job” in extra-academic activities and mentorships rather than in university courses and seminars. This line of reflection will yield observations and recommendations to improve training and to increase ethnomusicology’s applicability and social and cultural relevance.

scholarly journals Relativistic Models for a GAIA-Like Astrometry Mission

2000 ◽  
Vol 180 ◽  
pp. 314-319 ◽  
Author(s):  
F. de Felice ◽  
A. Vecchiato ◽  
B. Bucciarelli ◽  
M.G. Lattanzi ◽  
M. Crosta
Keyword(s):  
Reference Frame ◽  
Fundamental Physics ◽  
Accurate Knowledge ◽  
Adopted Model ◽  
Relativistic Approach ◽  
General Relativistic ◽  
Relativistic Models ◽  
Relativistic Parameter ◽  
Relativistic Framework ◽  
Better Than

A non-perturbative general relativistic approach to global astrometry was developed by de Felice et al. (1998) to handle satellite astrometry data in a genuine relativistic framework. In this contribution, the framework above has been further exploited to account for stellar motions and parallax. Because of the relevance that accurate knowledge (to 10−5 or better) of the relativistic parameter γ has to fundamental physics, a Parametrized Post-Newtonian (PPN) model has also been implemented, which allows the direct estimation of γ along with the astrometric parameters. These models have been tested on end-to-end simulations of the mission GAIA. The results show that, within the limitation of the simulation and the assumptions of the adopted model, measurements accurate to 100 μarcsec of large arcs among stars repeated over a few years can be modelled to establish a dense reference frame with a precision of a few tens of μarcseconds. Moreover, our experiments indicate that γ can be estimated to better than 10−6.

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