8,908 research outputs found
National Autism Indicators Report: Vocational Rehabilitation 2016
Employment is about more than simply earning a paycheck - it influences quality of life, independence, and wellness. Historically, employment outcomes for adults with autism are poor. The U.S. Vocational Rehabilitation system (VR) is designed to provide support to states for implementation of services to assist people with disabilities to prepare for, find, and keep employment. VR data allow us to examine some outcomes for those with autism compared to their peers.To make a difference, research must reach those who need it. The National Autism Indicators Report series presents our research findings in a clearly communicated, open-access, online format to speed the delivery of information to decision-makers while maintaining very high standards of scientific credibility
National Autism Indicators Report: Transition into Young Adulthood
There is very little research published concerning how people with autism do in the adult portion of their lifespans. We analyzed data from "The National Longitudinal Transition Study-2" and "The Survey of Pathways to Diagnosis and Services" to examine the service needs and life outcomes of adolescents and young adults on the autism spectrum. This report describes the prevalence of a wide variety of indicators related to transition planning, services access, unmet needs, employment, postsecondary education, living arrangements, social participation, and safety and risk
Strain versus stress in a model granular material: a Devil's staircase
The series of equilibrium states reached by disordered packings of rigid,
frictionless discs in two dimensions, under gradually varying stress, are
studied by numerical simulations. Statistical properties of trajectories in
configuration space are found to be independent of specific assumptions ruling
granular dynamics, and determined by geometry only. A monotonic increase in
some macroscopic loading parameter causes a discrete sequence of
rearrangements. For a biaxial compression, we show that, due to the statistical
importance of such events of large magnitudes, the dependence of the resulting
strain on stress direction is a Levy flight in the thermodynamic limit.Comment: REVTeX, 4 pages, 5 included PostScript figures. New version altered
throughout text, very close to published pape
Emergence of Quintet Superfluidity in the Chain of Partially Polarized Spin-3/2 Ultracold Atom
The system of ultracold atoms with hyperfine spin might be unstable
against the formation of quintet pairs if the interaction is attractive in the
quintet channel. We have investigated the behavior of correlation functions in
a model including only s-wave interactions at quarter filling by large-scale
density-matrix renormalization-group simulations. We show that the correlations
of quintet pairs become quasi-long-ranged, when the system is partially
polarized, leading to the emergence of various mixed superfluid phases in which
BCS-like pairs carrying different magnetic moment coexist.Comment: 4 pages, 4 figures; significantly rewritten compared to the first
versio
Development of T Lymphocytes in the Nasal-associated Lymphoid Tissue (NALT) from Growing Wistar Rats
The aim of the present report was to study the development of
several T-lymphocyte subsets in the nasal-associated lymphoid
tissue (NALT) of growing Wistar rats. CD5+ and CD4+ lymphocytes
gradually increased with age. A predominance of CD8α+ over CD4+ T
cells was found from 7 to 45 days but from 45 to 60 days of age
T helper cells outnumbered the cytotoxic subpopulation. The majority
of CD8+ T lymphocytes expressed the heterodimeric isoform. The
most relevant findings by immunohistochemistry are: (1) the
predominance of TCRγΎ+ and CD8α+ cells at 7 days postpartum over
all the other T-cell subpopulations; and (2) that TCRÎłÎČ+ outnumbered
TCRαÎČ+ T cells from 7 to 45 days postpartum whereas αÎČ T cells
predominated in 45- and 60-day-old rats. Besides, cytometric studies
have shown that the percentages of TCRÎł+, CD8+, as well as the
population coexpressing both phenotypes (TCRγΎ+CD8α+), were
significantly higher in rats at 7 days postpartum when compared to
60 day-old rats. In the present study, the finding of a high number
of γΎ+ and CD8+ T cells early in NALT development may indicate the
importance of these subpopulations in the protection of the nasal
mucosa in suckling and weaning Wistar rats
Force distribution in a scalar model for non-cohesive granular material
We study a scalar lattice model for inter-grain forces in static,
non-cohesive, granular materials, obtaining two primary results. (i) The
applied stress as a function of overall strain shows a power law dependence
with a nontrivial exponent, which moreover varies with system geometry. (ii)
Probability distributions for forces on individual grains appear Gaussian at
all stages of compression, showing no evidence of exponential tails. With
regard to both results, we identify correlations responsible for deviations
from previously suggested theories.Comment: 16 pages, 9 figures, Submitted to PR
Scattering by a toroidal coil
In this paper we consider the Schr\"odinger operator in with
a long-range magnetic potential associated to a magnetic field supported inside
a torus . Using the scheme of smooth perturbations we construct
stationary modified wave operators and the corresponding scattering matrix
. We prove that the essential spectrum of is an
interval of the unit circle depending only on the magnetic flux across
the section of . Additionally we show that, in contrast to the
Aharonov-Bohm potential in , the total scattering cross-section
is always finite. We also conjecture that the case treated here is a typical
example in dimension 3.Comment: LaTeX2e 17 pages, 1 figur
Parameterized Littlewood-Paley operators with variable kernels on Hardy spaces and weak Hardy spaces
In this paper, by using the atomic decomposition theory of Hardy space and
weak Hardy space, we discuss the boundedness of parameterized Littlewood-Paley
operator with variable kernel on these spaces.Comment: 15 pages. arXiv admin note: text overlap with arXiv:1711.0961
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