12,314 research outputs found
The Squeal Rule: Statutory Resolution and Constitutional Implications—Burdening the Minor’s Right of Privacy
An efficient coding system for deep space probes with specific application to Pioneer missions
One-half rate convolutional encoding with sequential decoding for deep space probe telemetry links with application to Pioneer mission
LIANA Model Integration System - architecture, user interface design and application in MOIRA DSS
The LIANA Model Integration System is the shell application supporting model integration and user interface functionality required for the rapid construction and run-time support of the environmental decision support systems (EDSS). Internally it is constructed as the framework of C++ classes and functions covering most common tasks performed by the EDSS (such as managing of and alternative strategies, running of the chain of the models, supporting visualisation of the data with tables and graphs, keeping ranges and default values for input parameters etc.). EDSS is constructed by integration of LIANA system with the models or other applications such as GIS or MAA software. The basic requirements to the model or other application to be integrated is minimal - it should be a Windows or DOS .exe file and receive input and provide output as text files. For the user the EDSS is represented as the number of data sets describing scenario or giving results of evaluation of scenario via modelling. Internally data sets correspond to the I/O files of the models. During the integration the parameters included in each the data sets as well as specifications necessary to present the data set in GUI and export or import it to/from text file are provided with MIL_LIANA language. Visual C++ version of LIANA has been developed in the frame of MOIRA project and is used as the basis for the MOIRA Software Framework - the shell and user interface component of the MOIRA Decision Support System. At present, the usage of LIANA for the creation of a new EDSS requires changes to be made in its C++ code. The possibility to use LIANA for the new EDSS construction without extending the source code is achieved by substituting MIL_LIANA with the object-oriented LIANA language
Black Holes, Entropy Bound and Causality Violation
The gravity/gauge theory duality has provided us a way of studying QCD at
short distances from straightforward calculations in classical general
relativity. Among numerous results obtained so far, one of the most striking is
the universality of the ratio of the shear viscosity to the entropy density.
For all gauge theories with Einstein gravity dual, this ratio is \eta/s=1/4\pi.
However, in general higher-curvature gravity theories, including two concrete
models under discussion - the Gauss-Bonnet gravity and the (Riemann)^2 gravity
- the ratio \eta/s can be smaller than 1/4\pi (thus violating the conjecture
bound), equal to 1/4\pi or even larger than 1/4\pi. As we probe spacetime at
shorter distances, there arises an internal inconsistency in the theory, such
as a violation of microcausality, which is correlated with a classical limit on
black hole entropy.Comment: 8 pages, no figures; Invited contribution to appear in the
Proceedings of the 75 Years since Solvay, Singapore, Nov 2008, (World
Scientific, Singapore, 2009
For Richer, or For Poorer: How Obergefell v. Hodges Affects the Tax-Exempt Status of Religious Organizations that Oppose Same-Sex Marriage
Article published in the Michigan State University School of Law Student Scholarship Collection
“Exceedingly [Un]Persuasive” and Unjustified: The Intermediate Scrutiny Standard and Single-Sex Education After \u3cem\u3eUnited States v. Virginia\u3c/em\u3e
On the Singularities of the Magnon S-matrix
We investigate the analytic structure of the magnon S-matrix in the
spin-chain description of planar SUSY Yang-Mills/ strings. Semiclassical analysis suggests that the exact S-matrix must
have a large family of poles near the real axis in momentum space. In this
article we show that these are double poles corresponding to the exchange of
pairs of BPS magnons. Their locations in the complex plane are uniquely fixed
by the known dispersion relation for the BPS particles. The locations precisely
agree with the recent conjecture for the matrix by Beisert, Hernandez,
Lopez, Eden and Staudacher (hep-th/0609044 and hep-th/0610251). These poles do
not signal the presence of new bound states. In fact, a certain non-BPS
localized classical solution, which was thought to give rise to new bound
states, can actually decay into a pair of BPS magnons.Comment: 40 pages, 14 figures; typos corrected, references adde
Fission Hindrance in hot 216Th: Evaporation Residue Measurements
The fusion evaporation-residue cross section for 32S+184W has been measured
at beam energies of E_beam = 165, 174, 185, 196, 205, 215, 225, 236, 246,and
257 MeV using the ATLAS Fragment Mass Analyzer. The data are compared with
Statistical Model calculations and it is found that a nuclear dissipation
strength, which increases with excitation energy, is required to reproduce the
excitation function. A comparison with previously published data show that the
dissipation strength depends strongly on the shell structure of the nuclear
system.Comment: 15 pages 9 figure
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