Data Note: VR Rehabilitation Rates of People with Mental Retardation/Developmental Disabilities (MR/DD) in 2005

Of the over 48,000 persons nationwide with mental retardation or other developmental disabilities (MR/DD) who closed out of the Vocational Rehabilitation (VR) system after receiving employment services in FY2005, more than half were successful closures, yielding a rehabilitation rate of 56.9%. This rehabilitation rate is calculated by dividing the number of successful closures, which is employment in any setting with the exception of sheltered workshops, by the total number of closures who received employment services

Data Note: Timeframe from Application to Closure in Integrated Employment for Vocational Rehabilitation Customers with Developmental Disabilities

Getting a job promptly after applying for vocational rehabilitation (VR) services is important for a successful career. Rapid placement boosts self-confidence and prevents applicants from losing work skills as a consequence of inactivity. Moreover, employers may prefer candidates whose work history shows limited gaps in employment

Role of the Coulomb and the vector-isovector ρ\rho potentials in the isospin asymmetry of nuclear pseudospin

We investigate the role of the Coulomb and the vector-isovector $\rho$ potentials in the asymmetry of the neutron and proton pseudospin splittings in nuclei. To this end, we solve the Dirac equation for the nucleons using central vector and scalar potentials with Woods-Saxon shape and $Z$ and $N-Z$ dependent Coulomb and $\rho$ potentials added to the vector potential. We study the effect of these potentials on the energy splittings of proton and neutron pseudospin partners along a Sn isotopic chain. We use an energy decomposition proposed in a previous work to assess the effect of a pseudospin-orbit potential on those splittings. We conclude that the effect of the Coulomb potential is quite small and the $\rho$ potential gives the main contribution to the observed isospin asymmetry of the pseudospin splittings. This isospin asymmetry results from a cancellation of the various energy terms and cannot be attributed only to the pseudospin-orbit term, confirming the dynamical character of this symmetry pointed out in previous works.Comment: 9 pages, 11 figures, uses revtex4; title was changed and several small corrections were made throughout the tex

Chaos and unpredictability in evolutionary dynamics in discrete time

A discrete-time version of the replicator equation for two-strategy games is studied. The stationary properties differ from that of continuous time for sufficiently large values of the parameters, where periodic and chaotic behavior replace the usual fixed-point population solutions. We observe the familiar period-doubling and chaotic-band-splitting attractor cascades of unimodal maps but in some cases more elaborate variations appear due to bimodality. Also unphysical stationary solutions have unusual physical implications, such as uncertainty of final population caused by sensitivity to initial conditions and fractality of attractor preimage manifolds.Comment: 4 pages, 4 figure

Pseudospin symmetry as a relativistic dynamical symmetry in the nucleus

Pseudospin symmetry in nuclei is investigated by solving the Dirac equation with Woods-Saxon scalar and vector radial potentials, and studying the correlation of the energy splittings of pseudospin partners with the nuclear potential parameters. The pseudospin interaction is related to a pseudospin-orbit term that arises in a Schroedinger-like equation for the lower component of the Dirac spinor. We show that the contribution from this term to the energy splittings of pseudospin partners is large. The near pseudospin degeneracy results from a significant cancelation among the different terms in that equation, manifesting the dynamical character of this symmetry in the nucleus. We analyze the isospin dependence of the pseudospin symmetry and find that its dynamical character is behind the different pseudospin splittings observed in neutron and proton spectra of nuclei.Comment: 13 pages, 9 figures, uses REVTeX4 macro

Thick tori around AGN: the case for extended tori and consequences for their X-ray and IR emission

Two families of models of dusty tori in AGNs (moderately thick and extended versus very thick and compact) are tested against available observations. The confrontation suggests that the former class better explains the IR broad-band spectra of both broad and narrow line AGNs, the anisotropy of the emission deduced by comparing IR properties of Seyfert 1 and 2 nuclei, the results of IR spectroscopy and those of high spatial resolution observations. There is however clear evidence for a broad distribution of optical depths. We also examine the relationship between IR and X-ray emission. The data support a view in which the matter responsible for the X-ray absorption is mostly dust free, lying inside the dust sublimation radius. The consequences of these results for the hard X-ray background as well as IR counts and background are discussed.Comment: 33 pages, 9 Postscript figures, to appear in ApJ, September 199

StateData: The National Report on Employment Services and Outcomes, 2013

This report provides statistics over 25 years from several existing national datasets that address the status of employment and economic self-sufficiency for individuals with intellectual and developmental disabilities. The authors use abbreviations for both intellectual disability (ID) and intellectual and developmental disabilities (IDD) in this report. We do this because data sources vary in the specific target groups that can be described. We provide a comprehensive overview that describes national trends in employment for people with IDD, and the appendix provides individual state profiles with data from several sources. These include the ICI’s IDD Agency National Survey of Day and Employment Services (from FY1999, 2001, 2004, 2007, 2008, 2009, 2010, 2011, and 2012), and datasets from the Social Security Administration, Rehabilitation Services Administration, Bureau of Labor Statistics, and American Community Survey. The appendix provides a state-by-state analysis of trends across each dataset

StateData: The National Report on Employment Services and Outcomes, 2012

This report provides statistics over 20 years from several existing national datasets that address the status of employment and economic self-sufficiency for individuals with intellectual and developmental disabilities. The authors use abbreviations for both intellectual disability (ID) and intellectual and developmental disabilities (IDD) in this report. We do this because data sources vary in the specific target groups that can be described. We provide a comprehensive overview that describes national trends in employment for people with IDD, and the appendix provides individual state profiles with data from several sources. These include the ICI’s National Survey of State Intellectual and Developmental Disabilities Agencies’ Day and Employment Services (from FY1999, 2001, 2004, 2007–2011), and datasets from the Social Security Administration, vocational rehabilitation, the Bureau of Labor Statistics, and the American Community Survey. The appendix provides a state-by-state analysis of trends across each dataset. The topical chapter examines national data on educational, employment, and economic outcomes for youth and young adults with IDD over the years 2000–2010. This chapter presents summaries, analyzes trends over time, and makes recommendations to improve outcomes