Kaon electromagnetic production: constraints set by new data

The CLAS data on the photo-production of K+ off the proton are utilised to study reaction mechanism of the process in frame of the isobaric approach. The missing D13 resonance is shown to be important for successful description of the data in the whole kinematical region. Constructed models provide satisfactory predictions for the process.Comment: 4 pages, 4 figures, contribution to the VIII International Conference on Hypernuclear & Strange Particle Physics, Jefferson Lab, Virginia, U.S.A., October 14-18, 200

It\u27s Okay to Not Be Okay : The 2021 Survey of Law Student Well-Being

The Survey of Law Student Well-Being, implemented in Spring 2014 [hereinafter 2014 SLSWB ], was the first multi-law school study in over twenty years to assess alcohol and drug use among law students, and it was the first multi-law school study ever to address prescription drug use, mental health, and help-seeking attitudes. The article summarizing the results of the 2014 SLSWB has been downloaded over 12,000 times. With a desire to learn what has changed since 2014 given the increased emphasis on law student and lawyer well-being among law schools and legal professionals, the authors sought and received grant funding from AccessLex Institute to implement another survey of law student well-being. In addition to assessing alcohol use, street drug use, prescription drug use, mental health, and help-seeking attitudes, the 2021 Survey of Law Student Well-Being [hereinafter 2021 SLSWB ] also included new questions focused on law student experiences with trauma and on concerns of third year law students related to preparing for and taking the bar exam. Additionally, the 2021 SLSWB included a set of open-text questions asking respondents to identify actions their law schools are taking or could be taking to support law student well-being. Section I provides a literature review, inclusive of research on law student wellness since the original article on the 2014 SLSWB was published in 2016. Section II describes the methods of recruitment, response rates, and design of the 2021 SLSWB survey instrument. Section III provides results from the largest multi-law school study of its kind, comparing results from the 2021 SLSWB with results from the 2014 SLSWB where possible. Section IV discusses the results and includes recommendations for steps different stakeholders within legal education and the legal profession could pursue to better support law student well-being. With representation from thirty-nine law schools across the country, including public, private, and religious law schools, as well as small, medium, and large law schools in terms of student enrollment, the findings of the 2021 SLSWB have implications for multiple stakeholders in legal education, including students, faculty, staff, and administrators, along with boards of law examiners

Long Term Evolution of Massive Black Hole Binaries

The long-term evolution of massive black hole binaries at the centers of galaxies is studied in a variety of physical regimes, with the aim of resolving the ``final parsec problem,'' i.e., how black hole binaries manage to shrink to separations at which emission of gravity waves becomes efficient. A binary ejects stars by the gravitational slingshot and carves out a loss cone in the host galaxy. Continued decay of the binary requires a refilling of the loss cone. We show that the standard treatment of loss cone refilling, derived for collisionally relaxed systems like globular clusters, can substantially underestimate the refilling rates in galactic nuclei. We derive expressions for non-equilibrium loss-cone dynamics and calculate time scales for the decay of massive black hole binaries following galaxy mergers, obtaining significantly higher decay rates than heretofore. Even in the absence of two-body relaxation, decay of binaries can persist due to repeated ejection of stars returning to the nucleus on eccentric orbits. We show that this recycling of stars leads to a gradual, approximately logarithmic dependence of the binary binding energy on time. We derive an expression for the loss cone refilling induced by the Brownian motion of a black hole binary. We also show that numerical N-body experiments are not well suited to probe these mechanisms over long times due to spurious relaxation.Comment: Replaced to match the accepted version, ApJ, 596 (2003

Towards a Lattice Calculation of the Nucleon Structure Functions

We have initiated a programme to compute the lower moments of the unpolarised and polarised deep inelastic structure functions of the nucleon in the quenched approximation. We review our progress to date.Comment: One author missed out in heplat title. Paper unchanged. 9 pages, uuencoded compress postscript, contributed talk to LAT9

The Most Massive Black Holes in the Universe: Effects of Mergers in Massive Galaxy Clusters

Recent observations support the idea that nuclear black holes grew by gas accretion while shining as luminous quasars at high redshift, and they establish a relation of the black hole mass with the host galaxy's spheroidal stellar system. We develop an analytic model to calculate the expected impact of mergers on the masses of black holes in massive clusters of galaxies. We use the extended Press-Schechter formalism to generate Monte Carlo merger histories of halos with a mass 10^{15} h^{-1} Msun. We assume that the black hole mass function at z=2 is similar to that inferred from observations at z=0 (since quasar activity declines markedly at z<2), and we assign black holes to the progenitor halos assuming a monotonic relation between halo mass and black hole mass. We follow the dynamical evolution of subhalos within larger halos, allowing for tidal stripping, the loss of orbital energy by dynamical friction, and random orbital perturbations in gravitational encounters with subhalos, and we assume that mergers of subhalos are followed by mergers of their central black holes. Our analytic model reproduces numerical estimates of the subhalo mass function. We find that the most massive black holes in massive clusters typically grow by a factor ~ 2 by mergers after gas accretion has stopped. In our ten realizations of 10^{15} h^{-1} Msun clusters, the highest initial (z=2) black hole masses are 5-7 x 10^9 Msun, but four of the clusters contain black holes in the range 1-1.5 x 10^{10} Msun at z=0. Satellite galaxies may host black holes whose mass is comparable to, or even greater than, that of the central galaxy. Thus, black hole mergers can significantly extend the very high end of the black hole mass function.Comment: 13 pages, 7 figures, accepted for publication in The Astrophysical Journa

Motor Performance and Quality of Life in a Community Exercise Program for Parkinson Disease

We investigated the effect of a comprehensive community program composed of exercise, mindfulness practice, and education on motor function and quality of life in individuals with Parkinson disease (PD). Thirty-six participants completed physical and quality-of-life assessments independently at baseline and 12 months. Physical assessments showed stability or improvement in functional mobility, integrated strength, and walking ability over the 1-year interval. PDQ-39 measures showed improvement in 6 of 8 indices: mobility, activities of daily living, emotional well-being, stigma reduction, social support, and bodily discomfort. Our results demonstrate the effectiveness of exercise, mindfulness, and education in community and group settings

Dynamical Balance in the Indonesian Seas Circulation

A high resolution, four-open port, non-linear, barotropic ocean model (2D POM) is used to analyze the Indonesian Seas circulation. Both local and overall momentum balances are studied. It is shown that geostrophy holds over most of the area and that the Pacific-Indian Ocean pressure difference is essentially balanced by the resultant of pressure forces acting on the bottom

Building governance and energy efficiency: Mapping the interdisciplinary challenge

Improving the energy efficiency of multi-owned properties (MoPs)—commonly known as apartment or condominium buildings—is central to the achievement of European energy targets. However, little work to date has focused on how to facilitate retrofit in this context. Drawing on interdisciplinary Social Sciences and Humanities expertise in academia, policy and practice, this chapter posits that decision-making processes within MoPs might provide a key to the retrofit challenge. Existing theories or models of decision-making, applied in the MoP context, might help to explain how collective retrofit decisions are taken—or overlooked. Insights from case studies and practitioners are also key. Theories of change might then be employed to develop strategies to facilitate positive retrofit decisions. The chapter maps the issues and sets an agenda for further interdisciplinary research in this novel area