Lattice QCD study of mixed systems of pions and kaons

The different ground state energies of N-pion and M-kaon systems for N+M <=12 are studied in lattice QCD. These energies are then used to extract the various two- and three- body interactions that occur in these systems. Particular attention is paid to additional thermal states present in the spectrum because of the finite temporal extent. These calculations are performed using one ensemble of 2+1 flavor anisotropic lattices with a spatial lattice spacing a_s ~ 0.125 fm, an anisotropy factor {\xi}=a_s/a_t=3.5, and a spatial volume L^3 ~ (2.5 fm)^3. The quark masses used correspond to pion and kaon masses of m_{\pi} ~ 383 MeV and m_K ~ 537 MeV, respectively. The isospin and strangeness chemical potentials of these systems are found to be in the region where chiral perturbation theory and hadronic models predict a phase transition between a pion condensed phase and a kaon condensed phase

Realignment in the NHL, MLB, the NFL, and the NBA

Sports leagues consist of conferences subdivided into divisions. Teams play a number of games within their divisions and fewer games against teams in different divisions and conferences. Usually, a league structure remains stable from one season to the next. However, structures change when growth or contraction occurs, and realignment of the four major professional sports leagues in North America has occurred more than twenty-five times since 1967. In this paper, we describe a method for realigning sports leagues that is flexible, adaptive, and that enables construction of schedules that minimize travel while satisfying other criteria. We do not build schedules; we develop league structures which support the subsequent construction of efficient schedules. Our initial focus is the NHL, which has an urgent need for realignment following the recent move of the Atlanta Thrashers to Winnipeg, but our methods can be adapted to virtually any situation. We examine a variety of scenarios for the NHL, and apply our methods to the NBA, MLB, and NFL. We find the biggest improvements for MLB and the NFL, where adopting the best solutions would reduce league travel by about 20%.Comment: 20 figures, 1 tabl

Still on the Sidelines: Developing the Non-Discrimination Paradigm under Title IX

I. Introduction Despite the promises of equal opportunity for women signalled by the passage of Title IX of the Education Amendments of 1972 (Title IX), 1 little progress in the creditable realization of this goal occurred in intercollegiate or interscholastic athletics between 1972 and 1992. 2 This lack of progress was unfortunate. 3 In many ways, most women were still on the sidelines. However, recent judicial decisions have allowed many, but certainly not all, women to leave the sidelines and enter the playing fields as equals. By virtue of three landmark cases, Cohen v. Brown, 4 Roberts v. Colorado State Board of Agriculture, 5 and Favia v. Indiana University of Pennsylvania, 6 women who are blessed with great athletic ability have earned a mandate for nu- merical parity with men in intercollegiate athletic programs. In these three cases, federal district courts issued injunctions to prevent post-secondary institutions from eliminating certain women\u27s intercollegiate athletic teams, 7 or reducing them to a lower level status. 8 Every decision was affirmed on appeal. 9 The various courts held that the defendant institutions in each of the three cases had engaged in gender discrimination, prohibited by Title IX, 10 by failing to meet any one of three alternative measures established in the Policy Interpretation. 11 These three measures, which are designed to be considered consecutively, attempt to provide for assessment of the opportu- nity for individuals of both genders to compete in athletic programs by de- termining: 1. Whether intercollegiate [or interscholastic ..

Apellicon: a web-based tool for constructing and curating Textpresso databases.

As more research literature in the biological sciences is made available in electronic format, text mining systems are increasingly being used to improve the ability of investigators to retrieve relevant information. Through the use of advanced indexing techniques that utilize biological ontologies, semantic databases, and other formal representations of biological concepts text mining systems have been able to effectively parse biological literature. While text mining systems are increasingly effective at creating the linkages required to provide context-specific search results, the systems themselves are difficult to set up and use by novice computer users due to the highly technical nature of the applications. Because most researchers in the biological sciences do not have a strong computer science background we have focused on improving the quality of existing, proven text mining systems by implementing a web-based GUI that greatly improves the workflow of these systems. Textpresso in particular has an excellent web-based interface for searching literature but does not have an easy to use administrative interface. We developed the Apellicon interface to enable a wide range of users to build and manage a Textpresso database. An important feature of Apellicon is that it can enable groups to collaborate in building a Textpresso database

Bryophytes of Uganda : 5., Bryocrumia L.E.Anderson (Hypnaceae) ; a monotypic moss genus new to Africa

A number of collections from Africa identified as Phyllodon scutellifolius or Glossadelphus serpyllifolius belong to Bryocrumia vivicolor, previously known only from America and Asia. Phyllodon scutellifolius is known only from one (possibly two) collections from Madagascar, and Glossadelphus serpyllifolius is a synonym of Bryocrumia vivicolor

On the Right Track to Safer Communities: Steering California's Juvenile Offenders Away from Lives of Crime

Describes family therapies and community-based intervention programs to reduce repeat offenses by juvenile offenders. Includes recommendations for expanding existing programs and an analysis of potential cost savings