Neutron--Antineutron Oscillations at the Surface of Nuclei

We discuss some aspects of possible neutron--antineutron oscillations in nuclei. The phenomenon occurs mostly at the surface of nuclei, and hence {\sl i)} is not very sensitive to medium corrections and {\sl ii)} makes use of the antinucleon-nucleus interaction in a region probed by experiments at CERN.Comment: Contr. Oak Ridge Workshop on Workshop on Baryon Instability, Latex, 4 pages, comments to [email protected]

That Which Binds Us

This novel follows three individuals struggling with isolation and loneliness. Rina, a twenty-two year-old college student is studying abroad in Japan when she learns of her grandfather’s death. As his last living relative, she decides to leave her studies and a burgeoning romance to take care of her grandfather’s final affairs. At his funeral she meets Marcus, a mysterious man whose past ties in with her own. Marcus gives Rina the opportunity to uncover secrets surrounding her family and forces her to question not only her grandfather’s past but also her own identity. Tilnu is an immortal with a foggy memory of the past. He believes he is a fallen angel trying to reclaim his place in heaven by devoting his life to the hunting and killing of demons. After fighting a particularly powerful demon, he finds himself indebted to a young woman who guilts him into being her companion and prompts him to doubt his convictions about his own place in the world. Marcus, a demon able to live on Earth by making bonds to people, is caught between a rock and a hard place. After meeting Rina, he is unable to ignore his memories of past mistakes. With his time on Earth suddenly limited, and the persistent hunter Tilnu on his tail, he fears it may be too late to make up for his past sins against Rina and her family

Royal Diplomacy in Renaissance Italy: Ferrante d’Aragona (1458–1494) and his Ambassadors

This article examines the diplomatic challenges faced by the king of Naples, Ferrante d\u27Aragona (1458-1494) and the activity of his ambassadors in meeting those challenges. It identifies Rome, Florence and Milan as the three most important nodes of Ferrante\u27s diplomacy and looks in detail at the activity of the ambassadors who served in these postings. In the area of diplomatic praxis, Ferrante enthusiastically embraced changes pioneered by Francesco Sforza, the Duke of Milan (1450-1466), including the use of permanent resident ambassadors and diplomatic chanceries. This was very much in keeping with Ferrante\u27s pragmatic approach to statecraft and counters the widely held view of Naples as a state out of step with the innovations of the Renaissance period

Saper la mente della soa Beatitudine : Pope Paul II and the Ambassadorial Community in Rome (1464-71)

This article examines the practice of the ambassadors sent by the Italian states to the court of Pope Paul II (1464-1471), focusing in particular on how they have embraced their role as an informant. Since Paul was a pope unstable, often impenetrable and inaccessible, the ambassadors were often obliged to obtain information about the Pope and his intentions indirectly. Relying heavily on the Roman diplomatic correspondence during the pontificate of Paul, this article shows how ambassadors have built networks of contacts within the papal court to ensure a continuous supply of useful information and in time. These networks thus comprised of members of any community evolving around the papacy, including well-placed cardinal, church officials, other ambassadors, political agents, as well as several informants of lower hierarchies. Rome was, indeed, an information market, so that the ambassadors had to use all their skills to take possession of the best information and most valuable

Mutual information for examining correlations in DNA

This paper examines two methods for finding whether long-range correlations exist in DNA: a fractal measure and a mutual information technique. We evaluate the performance and implications of these methods in detail. In particular we explore their use comparing DNA sequences from a variety of sources. Using software for performing in silico mutations, we also consider evolutionary events leading to long range correlations and analyse these correlations using the techniques presented. Comparisons are made between these virtual sequences, randomly generated sequences, and real sequences. We also explore correlations in chromosomes from different species.Comment: 8 pages, 3 figure

Exchange Currents for Hypernuclear Magnetic Moments

The meson(K and $\pi$) exchange currents for the hypernuclear magnetic moments are calculated using the effective Lagrangian method. The seagull diagram, the mesonic diagram and the $\Sigma^0$-excitation diagram are considered. The $\Lambda$-N exchange magnetic moments for the ${}^5_{\Lambda}He$, ${}^6_{\Lambda}He$ and ${}^6_{\Lambda}Li$ are calculated employing the harmonic oscillator shell model. It is found that the two-body correction is about -9% of the single particle value for ${}^5_{\Lambda}He$. The $\pi$ exchange current, induced only in the $\Sigma^0$-excitation diagram, is found to give dominant contribution for the isovector magnetic moments of hypernuclei with A=6.Comment: 11pp, LaTeX, 7 EPS figures, uses epsf.st

Chiral SU(3) Symmetry and Strangeness

In this talk we review recent progress on the systematic evaluation of the kaon and antikaon spectral functions in dense nuclear matter based on a chiral SU(3) description of the low-energy pion-, kaon- and antikaon-nucleon scattering data.Comment: 9 pages, 4 figures, invited talk given by M.F.M.L. at the SQM2001 conferenc