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Yeates Keith Owen; Taylor H. Gerry; Wade Shari L.; Drotar Dennis; Stancin Terry; Minich Nori 《Canadian Metallurgical Quarterly》2002,16(4):514
Longitudinal neuropsychological outcomes of traumatic brain injury (TBI) were investigated in 53 children with severe TBI, 56 children with moderate TBI, and 80 children with orthopedic injuries only. Neuropsychological functioning was assessed at baseline, at 6- and 12-month follow-ups, and at an extended follow-up (a mean of 4 years postinjury). Mixed model analyses revealed persistent neuropsychological sequelae of TBI that generally did not vary as a function of time postinjury. Some recovery occurred during the first year postinjury, but recovery reached a plateau after that time, and deficits were still apparent at the extended follow-up. Further recovery was uncommon after the first year postinjury. Family factors did not moderate neuropsychological outcomes, despite their demonstrated influence on behavior and academic achievement after childhood TBI. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
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Kevin Curran Colman Morrissey Colm Fagan Colm Murphy Brian O'Donnell Gerry Fitzpatrick Stephen Condit 《International Journal of Network Management》2005,15(2):123-134
The Honeynet Project was founded by 30 US based security professionals with the intention of researching the techniques, tools, tactics and motives of hackers and the ‘blackhat’ community in general. A Honeynet Project is an all volunteer, non‐profit organization committed to sharing and learning the motives, tools, and tactics of the hacking community. It is comprised of a number of information security professionals dedicated to honeynet research and information security. This paper outlines the technical configuration of a honeynet, presents some of the key attacks on the honeynet to date and provides recommendations for securing networked systems. Copyright © 2005 John Wiley & Sons, Ltd. 相似文献
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The performance of the ORTEC(?) Detective? as a field deployable tool for emergency urine bioassay of (137)Cs, (60)Co, (192)Ir, (169)Yb and (75)Se was evaluated against ANSI N13.30. The tested activity levels represent 10 % RL (reference level) and 1 % RL defined by [Li C., Vlahovich S., Dai X., Richardson R. B., Daka J. N. and Kramer G. H. Requirements for radiation emergency urine bioassay techniques for the public and first responders. Health Phys (in press, 99(5), 702-707 (2010)]. The tests were conducted for both single radionuclide and mixed radionuclides at two geometries, one conventional geometry (CG) and one improved geometry (IG) which improved the MDAs (minimum detectable amounts) by a factor of 1.6-2.7. The most challenging radionuclide was (169)Yb. The measurement of the mixture radionuclides for (169)Yb at the CG did not satisfy the ANSI N13.30 requirements even at 10 % RL. At 1 % RL, (169)Yb and (192)Ir were not detectable at either geometry, while the measurement of (60)Co in the mixed radionuclides satisfied the ANSI N13.30 requirements only at the IG. 相似文献
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Dana L. Morgan Gerry Triani Mark G. Blackford N. A. Raftery Ray L. Frost Eric R. Waclawik 《Journal of Materials Science》2011,46(2):548-557
In this study, the mechanism of precursor dissolution and the influence of kinetics of dissolution on titanate nanotube formation
were investigated. This comparative study explored the dissolution kinetics for the case of commercial titania powders, one
composed of predominantly anatase (>95%) and the other rutile phase (>93%). These nanoparticle precursors were hydrothermally
reacted in 9 mol L−1 NaOH at 160 °C over a range of reaction times of between 2 and 32 h. The high surface area nanotube-form product was confirmed
using X-ray diffraction, FT-Raman spectroscopy, and transmission electron microscopy. The concentration of nanotubes produced
from the different precursors was established using Rietveld analysis with internal and external corundum standardization
to calibrate the absolute concentrations of the samples. Interpretation of the dissolution process of the precursor materials
indicated that the dissolution of anatase proceeds via a zero-order kinetic process, whereas rutile dissolution is through
a second-order process. The TiO2 nanostructure formation process and mechanism of TiO2 precursor dissolution was confirmed by non-invasive dynamic light scattering measurements. Significant observations are that
nanotube formation occurred over a broad range of hydrothermal treatment conditions and was strongly influenced by the order
of precursor dissolution. 相似文献
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