1,809 research outputs found
The contribution of injury severity, executive and implicit functions to awareness of defi cits after traumatic brain injury (TBI)
Deficits in self-awareness are commonly seen after Traumatic Brain Injury (TBI) and adversely affect rehabilitative efforts, independence and quality of life (Ponsford, 2004). Awareness models predict that executive and implicit functions are important cognitive components of awareness though the putative relationship between implicit and awareness processes has not been subject to empirical investigation (Crosson et al., 1989; Ownsworth, Clare, & Morris, 2006; Toglia & Kirk, 2000). Severity of injury, also thought to be a crucial determinant of awareness outcome post-insult, is under-explored in awareness studies (Sherer, Boake, Levin, Silver, Ringholz, & Walter, 1998 ). The present study measured the contribution of injury severity, IQ, mood state, executive and implicit functions to awareness in head-injured patients assigned to moderate/severe head-injured groups using several awareness, executive, and implicit measures. Severe injuries resulted in greater impairments across most awareness, executive and implicit measures compared with moderate injuries, although deficits were still seen in the moderate group. Hierarchical regression results showed that severity of injury, IQ, mood state, executive and implicit functions made signifi cant unique contributions to selective aspects of awareness. Future models of awareness should account for both implicit and executive contributions
to awareness and the possibility that both are vulnerable to disruption after neuropathology. ( JINS , 2010, 16 , 1– 10 .
Review of correlation techniques
Correlation analysis in MST radar to determine the scattered power, Doppler frequency and correlation time for a noisy signal is examined. It is assumed that coherent detection was employed, with two accurately balanced quadrature receiving channels and that coherent integration is performed with a window length significantly less than the correlation time of the signal
Nuclear wastewater decontamination by 3D-Printed hierarchical zeolite monoliths
3D-printed monoliths of zeolites chabazite and 4A were made, characterized, and shown effective for removing strontium and caesium from water
High-Throughput Identification of Electrides from all Known Inorganic Materials
In this paper, we present the results of a large-scale, high-throughput
computational search for electrides among all known inorganic materials.
Analyzing a database of density functional theory results on more than 60,000
compounds, we identify 69 new electride candidates. We report on all these
candidates and discuss the structural and chemical factors leading to electride
formation. Among these candidates, our work identifies the first
partially-filled 3d transition metal containing electrides Ba3CrN3 and Sr3CrN3;
an unexpected finding that contravenes conventional chemistry.Comment: 5 page manuscript in letter format, 27 page Supplementary Informatio
The Kepler view of magnetic chemically peculiar stars
Magnetic chemically peculiar (mCP) stars exhibit complex atmospheres that
allow the investigation of such diverse phenomena as atomic diffusion, magnetic
fields, and stellar rotation. The advent of space-based photometry provides the
opportunity for the first precise characterizations of the photometric
variability properties of these stars. We carried out a search for new mCP
stars in the Kepler field with the ultimate aim of investigating their
photometric variability properties using Kepler data. As an aside, we describe
criteria for selecting mCP star candidates based on light curve properties, and
assess the accuracy of the spectral classifications provided by the MKCLASS
code. As only very few known mCP stars are situated in the Kepler field, we had
to depend largely on alternative (nonspectroscopic) means of identifying
suitable candidates that rely mostly on light curve properties; in particular
we relied on monoperiodic variability and light curve stability. Newly acquired
and archival spectra were used to confirm most of our mCP star candidates.
Linear ephemeris parameters and effective amplitudes were derived from
detrended Kepler data. Our final sample consists of 41 spectroscopically
confirmed mCP stars of which 39 are new discoveries, 5 candidate mCP stars, and
7 stars in which no chemical peculiarities could be established. Our targets
populate the whole age range from zero-age main sequence to terminal-age main
sequence and are distributed in the mass interval from 1.5 M_sun to 4 M_sun.
About 25% of the mCP stars show a hitherto unobserved wealth of detail in their
light curves indicative of complex surface structures. We identified light
curve stability as a primary criterion for identifying mCP star candidates
among early-type stars in large photometric surveys, and prove the reliability
of the spectral classifications provided by the MKCLASS code.Comment: Accepted for publication in Astronomy and Astrophysics. 20 pages, 12
figures, 5 tables. Given above is a slightly shortened version of the
abstract; for the full abstract, please refer to the pape
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