Depression among acute spinal cord injury patients: A study utilizing the Zung Self-Rating Depression Scale.

Administered the Self-Rating Depression Scale (SRDS) an average of 63 days post-injury to 58 acute spinal cord injury (SCI) patients (aged 18–55 yrs) and 51 age-matched healthy controls (CTLs). Mean SRDS scores were 37.1 for CTLs and 49.0 for SCI Ss. Several factors, including age, yrs of education, level of injury (paraplegic vs quadriplegic), etiology of injury (violent vs nonviolent), presence of acute closed head injury, or recent history of alcohol or substance abuse, had no association with SRDS scores. Since undiagnosed and untreated depression may compromise an SCI patient's adaptation to injury and motivation during rehabilitation, abnormally elevated SRDS scores may help to determine which patients might require more focused psychological assessment and treatment. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

Response to Buchanan et al.'s comment on Urban et al. “Assessment of human health risks posed by consumption of fish from the Lower Passaic River (LPR), New Jersey” (2009, doi:10.1016/jscitotenv.2009.03.004)

Buchanan et al. assert that our recent fish ingestion risk assessment for a section of the Lower Passaic River (LPR) (Urban et al., 2009) utilizes inappropriate ingestion rates and is inconsistent with state and USEPA guidelines and risk assessment procedures, and therefore underestimates the human health risks associated with angler exposure along this stretch of the river. However, they fail to support these assertions with evidence; indeed, in a recent response to similar allegations, we demonstrated that the utilized ingestion rates are, in fact, the most appropriate for this parameter (Urban et al., 2010). Our reliance on data from a comprehensive, independently validated, peer-reviewed, and site-specific creel angler survey (CAS) in order to define fish and crab ingestion rates for this region of the LPR is fully compliant with USEPA guidelines. In fact, the crab ingestion survey and risk assessment cited by Buchanan et al. as evidence of crabbing activity and crab ingestion for this region was less comprehensive than the CAS in question, was not overseen by an independent panel, has yet to be peer-reviewed, and does not provide any activity or consumption data for this section of the LPR. Contrary to the implications of Buchanan et al., our effort provides a transparent, comprehensive, and scientifically legitimate human health risk assessment of fish ingestion for the lowest 6 miles of the LPR. Thus we adamantly disagree with the characterization and assertions put forth by Buchanan et al., and stand by the conclusions presented in Urban et al. (2009) and defended in Urban et al. (2010).     

Do adolescent symptomatology and family environment vary over time with fluctuations in paternal alcohol impairment?

This study tested whether adolescent internalizing problems, externalizing problems, heavy alcohol use, fathers' parenting, and family conflict varied over time with fluctuations in fathers' alcohol impairment and also whether children of recovered alcoholic fathers differed from children of nonalcoholic fathers. Fathers and adolescent children (N?=?267 families) were interviewed in 3 annual assessments. Results showed that adolescent symptomatology and the family environment did not vary over time as a function of different trajectories of paternal alcohol impairment. However, children of recovered alcoholic fathers exhibited more symptomatology than did children of nonalcoholic fathers. Even though paternal alcoholism has remitted in these families, children of recovered alcoholic fathers might remain on a general higher risk trajectory relative to children of nonalcoholic fathers. (PsycINFO Database Record (c) 2010 APA, all rights reserved)     

On the potential of MODIS and MERIS for imaging chlorophyll fluorescence from space

The first images from MODIS (Moderate Resolution Imaging Spectroradiometer) are now being used to evaluate information on the in vivo fluorescence peak near 685?nm from chlorophyll-a, stimulated by sunlight. The Fluorescence Line Imager (FLI) airborne imaging spectrometer was used in the 1980s to demonstrate the mapping of this signal from an aircraft, showing that it gave significant rejection of confusing signals from atmospheric radiance. For imaging from space, a major limitation is sensor sensitivity, which tends to restrict imaging to relatively high concentrations under good solar illumination. Noise-equivalent chlorophyll concentrations for MODIS and MERIS (Medium Resolution Imaging Spectrometer) have been estimated as 0.07 and 0.1?mg?m^?3, respectively, under zenith Sun, clear sky conditions. Although MERIS has slightly poorer sensitivity, it has the advantage of flexible band placing and presence of a band at 709?nm in the baseline band-set that allows better definition of the continuum spectrum above which fluorescence is measured. This band should also allow detection of bright plankton blooms (red-tide events) through the peak radiance near 709?nm caused by a combination of in-water scattering and absorption.