5,133 research outputs found
Self-determination for individuals with significant cognitive disabilities and their families
Perspectives of Dentists, Families, and Case Managers on Dental Care for Individuals With Developmental Disabilities in Kansas
Due Process Hearing Officers: Characteristics, Needs, and Appointment Criteria
This is the publisher's version, also found here: http://sped.org/Characteristics and training
needs of due process hearing officers in
North Carolina were surveyed. It was
found that current regulations governing
appointments of hearing officers are
insufficient to ensure appointment of
qualified and impartial persons. Criteria
were analyzed and suggestions for
training and appointments are made
Procedural Due Process: The Two-edged Sword That the Untrained Should Not Unsheath
The issue of procedural due process is examined in this article by first analyzing
the associated legal requirements of P.L. 94-142 and then identifying the "triggers"
which professionals and parents can use to initiate a due process hearing.
Problems and unresolved issues associated with interpreting and applying due process
safeguards in terms of initiating, conducting, and governing the hearing and
hearing officer are discussed. The concluding section of the article identifies
specific training implications and creeds of due process hearing officers
Generation and delivery of free hydroxyl radicals using a remote plasma
We demonstrate a new gas-based generation source using a low power radio frequency driven atmospheric pressure plasma configured to deliver the radical flux into the far effluent region, well away from interference from other plasma factors such as electric fields, currents, and ultraviolet radiation. Using He–H2O gas chemistry isolated from the laboratory air, the plasma generated flux contains and other radicals including, O and HO2 as well as H2O2 which, along with, was found to vary with H2O vapour content and absorbed power density. Peak flux values were 2.3 nmol s−1 and 0.23 nmol s1 for H2O2 and respectively at a distance of 50 mm from the plasma, with 790 ppmv H2O and a power density of ∼108 W m−3. The maximum flux density was 4.5 × 1019 m−2s−1 falling to 1.7 × 1019 m2 s1 at 110 mm, equivalent to generation rates of 74 µM s1 and 28 µM s−1. Despite high recombination rates at the plasma exit, the escaping flux is still significant, indicating a viable delivery capability to downstream targets. Its performance with regard to generation rates compares well with traditional generation techniques such as radiolysis, advanced oxidation processes and enhanced Fenton-chemistry approaches where production rates are sub-µM s−1. Delivering precisely quantifiable fluxes provides new opportunities for scientific studies and technological opportunities in cell biology, atmospheric chemistry, protein unfolding and systematic dose studies for plasma-based and other related potential medical treatments
An equilibrium model for RFP plasmas in the presence of resonant tearing modes
The equilibrium of a finite-beta RFP plasma in the presence of
saturated-amplitude tearing modes is investigated. The singularities of the MHD
force balance equation JXB=grad(p) at the modes rational surfaces are resolved
through a proper regularization of the zeroth-order (equilibrium) profiles, by
setting to zero there the gradient of the pressure and parallel current
density. An equilibrium model, which satisfies the regularization rule at the
various rational surfaces, is developed. The comparison with the experimental
data from the Reversed Field eXperiment (RFX) gives encouraging results. The
model provides an easy tool for magnetic analysis: many aspects of the
perturbations can be analyzed and reconstructed.Comment: Final accepted version. 36 page
Relativistic precession and spin dynamics of an elliptic Rydberg wave packet
Time evolution of wave packets built from the eigenstates of the Dirac
equation for a hydrogenic system is considered. We investigate the space and
spin motion of wave packets which, in the non-relativistic limit, are
stationary states with a probability density distributed uniformly along the
classical, elliptical orbit (elliptic WP). We show that the precession of such
a WP, due to relativistic corrections to the energy eigenvalues, is strongly
correlated with the spin motion. We show also that the motion is universal for
all hydrogenic systems with an arbitrary value of the atomic number Z.Comment: Latex2e, uses IOP style files (included), 10 pages, 5 jpg figures, 1
postscript figure. Relation between precession time and radiative liftime
added (eq.(12)). Accepted for publication in J. Phys.
Systematic review of the behavioural assessment of pain in cats
Objectives The objectives were to review systematically the range of assessment tools used in cats to detect the
behavioural expression of pain and the evidence of their quality; and to examine behavioural metrics (considering
both the sensory and affective domains) used to assess pain.
Methods A search of PubMed and ScienceDirect, alongside articles known to the authors, from 2000 onwards, for
papers in English was performed. This was followed by a manual search of the references within the primary data
sources. Only peer-reviewed publications that provided information on the assessment tool used to evaluate the
behavioural expression of pain in cats, in conscious animals (not anaesthetised cats), were included.
Results No previous systematic reviews were identified. One hundred papers were included in the final assessment.
Studies were primarily related to the assessment of pain in relation to surgical procedures, and no clear distinction
was made concerning the onset of acute and chronic pain. Ten broad types of instrument to assess pain were
identified, and generally the quality of evidence to support the use of the various instruments was poor. Only
one specific instrument (UNESP-Botucatu scale) had published evidence of validity, reliability and sensitivity at
the level of a randomised control trial, but with a positive rather than placebo control, and limited to its use in the
ovariohysterectomy situation. The metrics used within the tools appeared to focus primarily on the sensory aspect
of pain, with no study clearly discriminating between the sensory and affective components of pain.
Conclusions and relevance Further studies are required to provide a higher quality of evidence for methods used
to assess pain in cats. Furthermore, a consistent definition for acute and chronic pain is needed. Tools need to
be validated that can detect pain in a range of conditions and by different evaluators (veterinary surgeons and
owners), which consider both the sensory and emotional aspects of pain
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