Publications (99) View all
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Article: Attention and social functioning in children with malformations of cortical development and stroke.
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ABSTRACT: Attention and social functioning and their interrelationships have not been routinely examined in children with early brain insult (EBI). This study aimed to describe attention and social functioning in children with two types of EBI: malformations of cortical development (MCD) and stroke. Children diagnosed with MCD (n = 14, 6 males) or stroke (n = 14, 8 males) aged 8 to 14 years (M = 12 years 11 months) completed neuropsychological assessments to examine attention processes. Primary caregivers completed a questionnaire to assess executive components of children's attention and teachers completed a questionnaire to measure children's social functioning. Brain scans (MRI or CT) were coded by a pediatric neuroradiologist. Higher rates of impairments in attention and social function were found in children with EBI compared with normative expectations. Children with MCD experienced more global and clinically significant levels of impairment than children with stroke; though impairments were present in both groups. A strong association between executive components of attention and social function was observed. In addition, complex attention processes were associated with social function. The findings emphasize the reciprocity between attention, behavior and social outcomes, and the vulnerability of social function following EBI.Child Neuropsychology 10/2011; 18(4):392-403. · 1.80 Impact Factor -
Article: Erratum: Measurement of σ(pp̅ →Z)·Br(Z→ττ) at √s=1.96 TeV [Phys. Rev. D 71, 072004 (2005)]
Phys. Rev. D. 02/2008; 77(3). -
Article: Erratum: Measurement of σ(pp¯→Z)·Br(Z→ττ) at s=1.96TeV [Phys. Rev. D 71, 072004 (2005)]
Physical review D: Particles and fields 01/2008; 77(3):39901. -
Article: Measurement of the pp̅ →tt̅ +X production cross section at √s=1.96 TeV in the fully hadronic decay channel
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ABSTRACT: A measurement of the top quark pair production cross section in proton antiproton collisions at an interaction energy of √s=1.96 TeV is presented. This analysis uses 405±25 pb-1 of data collected with the D0 detector at the Fermilab Tevatron Collider. Fully hadronic tt̅ decays with final states of six or more jets are separated from the multijet background using secondary vertex tagging and a neural network. The tt̅ cross section is measured as σtt̅ =4.5-1.9+2.0(stat)-1.1+1.4(syst)±0.3(lumi) pb for a top quark mass of mt=175 GeV/c2.Phys. Rev. D. 10/2007; 76(7). -
Article: Measurement of the tt̅ production cross section in pp̅ collisions using dilepton events
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ABSTRACT: We present a measurement of the tt̅ pair production cross section in pp̅ collisions at √s=1.96 TeV utilizing approximately 425 pb-1 of data collected with the D0 detector. We consider decay channels containing two high pT charged leptons (either e or μ) from leptonic decays of both top-daughter W bosons. These were gathered using four sets of selection criteria, three of which required that a pair of fully identified leptons (i.e., eμ, ee, or μμ) be found. The fourth approach imposed less restrictive criteria on one of the lepton candidates and required that at least one hadronic jet in each event be tagged as containing a b quark. For a top quark mass of 175 GeV, the measured cross section is 7.4±1.4(stat)±1.0(syst) pb and for the current Tevatron average top quark mass of 170.9 GeV, the resulting value of the cross section is 7.8±1.8(stat+syst) pb.Phys. Rev. D. 09/2007; 76(5).
