2,615 research outputs found
Resale Price Maintenance After Monsanto: A Doctrine Still at War With Itself
In this article, two enforcement officials at the Federal Trade Commission reexamine resale price maintenance in light of the Supreme Court\u27s recent decision in Monsanto Co. v. Spray-Rite Service Corp. Commissioner Calvani and Mr. Berg consider both antitrust law and economic policy in their review of the history of resale price maintenance; they point out the chronic inconsistencies to which this antitrust regime has been subject, and identify these same inconsistencies at work in Monsanto. The authors set forth three theses with respect to Monsanto: first, that the Court intimated a willingness to reconsider at some future time the per se standard of illegality for resale price maintenance; second, that the Court recognized the continuing vitality of the Colgate doctrine, which had been seriously questioned in recent years; and, third, that the Monsanto Court unsuccessfully attempted to delineate a workable evidentiary standard applicable to communications between sellers and resellers when it is alleged that such communications constitute an illegal contract, combination, or conspiracy under section one of the Sherman Act. The authors suggest that, taken together, these elements in Monsanto display a doctrine at war with itself. The authors conclude by examining the possible implications of the Monsanto decision for the future direction of the law of resale price maintenance
Modelling the light-curves of objects tidally disrupted by a black hole
Tidal disruption by massive black holes is a phenomenon, during which a large
part of gravitational energy can be released on a very short time-scale. The
time-scales and energies involved during X-ray and IR flares observed in
Galactic centre suggest that they may be related to tidal disruption events.
Furthermore, aftermath of a tidal disruption of a star by super-massive black
hole has been observed in some galaxies, e.g. RX J1242.6-1119A. All these
discoveries increased the demand for tools for tidal disruption study in curved
space-time. Here we summarise our study of general relativistic effects on
tidal deformation of stars and compact objects.Comment: 2 pages, to appear in the proceedings of the JENAM 2008, Symposium 7:
"Grand Challenges in Computational Astrophysics
The Use of Digital Video Annotation in Teacher Training: The Teachers’ Perspectives
The use of digital video offers interesting opportunities in teacher training, particularly the possibilities provided by video annotation, whereby people can add and share comments and opinions on the same videos, even from different places. This exploratory study aims to examine teachers’ perspectives of this technology, taking into account both their explicit and implicit evaluations. Different methods of using video annotation for training are compared, one based on its individual use, another supported by various types of tutorship. The data were collected and analysed first through a quantitative phase, followed by an in-depth qualitative phase. It is pointed out that to make this technology fully operational it is important to address the cultural and psychosocial aspects that control the emotional conditions which arise when one’s teaching behaviour is being observed and assessed
Optical conductivity of CuO_2 infinite-layer films
The infrared conductivity of CaCuO_2, SrCuO_{2-y}, and
Sr_{0.85}Nd_{0.15}CuO_2 infinite-layer films is obtained from reflectivity
measurements by taking into account the substrate contribution. SrCuO_{2-y} and
Sr_{0.85}Nd_{0.15}CuO_2 exhibit extra-phonon modes and structured bands in the
midinfrared, not found in stoichiometric CaCuO_2. These features mirror those
observed in the perovskitic cuprates, thus showing that the polaronic
properties of high-T_c superconductors are intrinsic to the CuO_2 planes.Comment: File latex, 5 p. incl. 4 fig. in epsf. Submitted to Solid State Com
Do flares in Sagittarius A* reflect the last stage of tidal capture?
In recent years the case for the presence of 3-4 10^6 M_sun black hole in our
Galactic Center has gained strength from results of stellar dynamics
observations and from the detection of several rapid X-ray and IR flares
observed in the Sagittarius A* from 2000 to 2004. Here we explore the idea that
such flares are produced when the central black hole tidally captures and
disrupts a small body - e.g. a comet or an asteroid.Comment: 6 pages, 9 figures, acknowledgments added, to appear in the
Proceedings of the Albert Einstein's Century International Conference, Paris
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