Child Youth Serv Rev
March 2009
One hanging question in child welfare policy and research is whether there is an artificial overrepresentation of the poor in child welfare caseloads or whether this reflects the co-occurrence of poverty and need. In order to address this question, this study uses data from child welfare (report, assessment, service and re-report), income maintenance, special education, hospitals, juvenile court, public mental health treatment, and census data. Poor children reported to child welfare are compared to non-poor children reported to child welfare and also to poor children not reported to child welfare.
View Article and Find Full Text PDFData from the National Survey of Child and Adolescent Well-being, a national probability study of children and families investigated for child maltreatment, were analyzed to answer the question: Do substantiated and unsubstantiated cases differ in rates of recidivism over 36 months? Recidivism was classified as (a) any re-reports, (b) substantiated re-reports and (c) subsequent foster care placements. Bivariate (survivor functions estimated by the Kaplan-Meier method) and multivariate (Cox regression modeling) analyses were conducted. The results revealed that risk of recidivism was similar regardless of substantiation status of the index investigation.
View Article and Find Full Text PDFThe bone diagnostic instrument (BDI) is being developed with the long-term goal of providing a way for researchers and clinicians to measure bone material properties of human bone in vivo. Such measurements could contribute to the overall assessment of bone fragility in the future. Here, we describe an improved BDI, the Osteoprobe IItrade mark.
View Article and Find Full Text PDFThis article describes the need for and the practicality and utility of longitudinal, multisector, and multilevel administrative data to address key issues in child maltreatment prevention and intervention. The goal is not to alert the reader to a new technology, but rather to clarify its potential and overview the process of creating such a database. Changes in technology, including data storage, computational speed, transfer systems, and software advances have made the creation of truly advanced multisector databases vastly easier than was the case even 10 years ago.
View Article and Find Full Text PDFUnlabelled: Although congenital partial hypodontia is widespread, and a variety of solutions for treating this condition in adolescents have been devised, all have had one or more significant drawbacks. A new treatment option that has recently become available, the Procera Maryland Bridge, appears to deliver excellent esthetics and strength. This article discusses that option and presents a case in which it was used successfully.
View Article and Find Full Text PDFPurpose: Prostate cancer (CaP) is disproportionately prevalent among black, compared to white, men. Additionally, men with a family history of CaP have 75% to 80% higher risk of CaP. Therefore we examined racial variation in the association of family history of CaP and self-reported prostate-specific antigen (PSA) testing in the nationally-representative National Health Interview Survey (NHIS).
View Article and Find Full Text PDFBMC Bioinformatics
November 2007
Background: The construction of literature-based networks of gene-gene interactions is one of the most important applications of text mining in bioinformatics. Extracting potential gene relationships from the biomedical literature may be helpful in building biological hypotheses that can be explored further experimentally. Recently, latent semantic indexing based on the singular value decomposition (LSI/SVD) has been applied to gene retrieval.
View Article and Find Full Text PDFGrowth and distribution of coarse roots in time and space represent a gap in our understanding of belowground ecology. Large roots may play a critical role in carbon sequestration belowground. Using ground-penetrating radar (GPR), we quantified coarse-root biomass from an open-top chamber experiment in a scrub-oak ecosystem at Kennedy Space Center, Florida, USA.
View Article and Find Full Text PDFPurpose: Variable amounts of irrigation fluid are absorbed during transurethral prostate resection. Previous studies suggest that cardiac stress occurs as a result of transurethral prostate resection, possibly due to glycine absorption. We performed a prospective, blinded, randomized trial comparing 1.
View Article and Find Full Text PDFProc Natl Acad Sci U S A
March 2007
Increased carbon storage in ecosystems due to elevated CO(2) may help stabilize atmospheric CO(2) concentrations and slow global warming. Many field studies have found that elevated CO(2) leads to higher carbon assimilation by plants, and others suggest that this can lead to higher carbon storage in soils, the largest and most stable terrestrial carbon pool. Here we show that 6 years of experimental CO(2) doubling reduced soil carbon in a scrub-oak ecosystem despite higher plant growth, offsetting approximately 52% of the additional carbon that had accumulated at elevated CO(2) in aboveground and coarse root biomass.
View Article and Find Full Text PDFAvailable evidence suggests that there may be qualitative differences in the natural history of PrCA by race. If this is true then additional etiologic research is needed to identify places in the causal chain where we can intervene to lower PrCA rates in AA men. South Carolina may prove to be a useful context in which to study prostate cancer etiology, because of the presence of unique environmental exposures.
View Article and Find Full Text PDFThis article presents analyses of longitudinal data to explore whether low-income children who survived a first incident of reported maltreatment were at higher risk of later childhood death compared to a matched comparison group of low-income children without reports of maltreatment (n = 7,433). Compared to the comparison group, children in the maltreatment group had about twice the risk of death before age 18 (0.51% vs.
View Article and Find Full Text PDFObjective: This study uses administrative data to track the first re-reports of maltreatment in a low-income, urban child welfare population (n=4957) while controlling for other public service involvement. Service system involvement is explored across the following sectors: Child Welfare, Income Maintenance, Special Education, Juvenile Court, and various forms of Medicaid-reimbursed medical or mental health care. This study builds knowledge by adding the services dimension to an ecological framework for analyses and by following recurrence for a longer period of time than prior investigations (7.
View Article and Find Full Text PDFExperimentally increasing atmospheric CO2 often stimulates plant growth and ecosystem carbon (C) uptake. Biogeochemical theory predicts that these initial responses will immobilize nitrogen (N) in plant biomass and soil organic matter, causing N availability to plants to decline, and reducing the long-term CO2-stimulation of C storage in N limited ecosystems. While many experiments have examined changes in N cycling in response to elevated CO2, empirical tests of this theoretical prediction are scarce.
View Article and Find Full Text PDFBackground: Common bile duct stones (CBDS) are especially prevalent in the elderly population. Although the standard of care for stone removal is endoscopic retrograde cholangiography with sphincterotomy (ERC-S), the clinician's decision to refer a patient for cholecystectomy after ERC-S depends on several factors including potential for future biliary symptoms and complications, morbidity and mortality related to cholecystectomy, and costs associated with referral for cholecystectomy versus conservative approach. Using decision analysis, we explored the economic implications of cholecystectomy versus expectant management following ERC-S in elderly patients with CBDS.
View Article and Find Full Text PDFAim: To assess the impact of transjugular intrahepatic portosystemic shunt (TIPS) on pulmonary gas exchange and to evaluate the use of TIPS for the treatment of hepatopulmonary syndrome ( HPS ).
Methods: Seven patients, three of them with advanced HPS, in whom detailed pulmonary function tests were performed before and after TIPS placement at the University of Alabama Hospital and at the Hospital Clinic, Barcelona, were considered.
Results: TIPS patency was confirmed by hemodynamic evaluation.
Atmospheric CO(2) concentrations have increased dramatically over the last century and continuing increases are expected to have significant, though currently unpredictable, effects on ecosystems. One important process that may be affected by elevated CO(2) is leaf litter decomposition. We investigated the interactions among atmospheric CO(2), herbivory, and litter quality within a scrub oak community at the Kennedy Space Center, Florida.
View Article and Find Full Text PDFThe aim of this study was to examine female gymnasts' fear of injury, their sources of self-efficacy and the psychological strategies used to overcome their fears. The participants were 10 female gymnasts aged 12 - 17 years. They had all taken part in competitive gymnastics and had experienced some type of injury during their careers.
View Article and Find Full Text PDFAtmospheric CO2 concentrations have increased exponentially over the last century and continuing increases are expected to have significant effects on ecosystems. We investigated the interactions among atmospheric CO2, foliar quality, and herbivory within a scrub oak community at the Kennedy Space Center, Florida. Sixteen plots of open-top chambers were followed; eight of which were exposed to ambient levels of CO2 (350 ppm), and eight of which were exposed to elevated levels of CO2 (700 ppm).
View Article and Find Full Text PDFA major challenge of designing a bioregenerative life support system for Mars is the reduction of the mass, volume, power, thermal and crew-time requirements. Structural mass of the greenhouse could be saved by operating the greenhouse at low atmospheric pressure. This paper investigates the feasibility of this concept.
View Article and Find Full Text PDFBackground And Aims: Heme oxygenase (HO) catalyzes hemoglobin into bilirubin, iron, and carbon monoxide (CO), a known vasodilator. HO expression and CO production as measured by blood carboxyhemoglobin (COHb) levels increase in experimental hepatopulmonary syndrome (HPS) and contribute to vasodilatation. Whether CO contributes to HPS in humans is unknown.
View Article and Find Full Text PDFWe investigated the direct and indirect effects of elevated atmospheric CO(2) on freshwater container habitats and their larval mosquito occupants. We predicted that a doubling of atmospheric CO(2) would (1) alter the chemical properties of water in this system, (2) slow degradation of leaf litter, and (3) decrease larval growth of Aedes albopictus (Skuse) mosquitoes raised on that litter under competitive conditions. Effects of elevated CO(2) on water quality parameters were not detected, but the presence of leaf litter significantly reduced pH and dissolved oxygen relative to water-filled containers without litter.
View Article and Find Full Text PDFObjective: To assess, in a retrospective three-centre series, the initial experience and results of patients undergoing radical cystectomy and orthotopic neobladder reconstruction.
Patients And Methods: The medical records were retrospectively reviewed for 104 suitable consecutive patients undergoing radical cystectomy and orthotopic neobladder reconstruction between June 1994 and April 2003. The initial histology, operating times, transfusion rates, complications, mortality rates, continence rates, potency rates, and cancer control rates were recorded.
This study presents data from the first large-scale longitudinal study to track the involvement of children reported for maltreatment in both the special education and child welfare systems. A range of state and local administrative databases were combined and cross-sector service histories were established for 7,940 children who had received Aid to Families With Dependent Children between 1993 and 1994. The authors address the following questions: (a) Is maltreatment associated with entry into special education after controlling for other factors? (b) among maltreated children, does maltreatment type or child welfare service use predict special education eligibility? and (c) what is the relationship between maltreatment type and type of educational disability? Results indicate that child maltreatment system involvement generally predates special education entry and is predictive of entry even after controlling for other factors.
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