Re-reporting of child maltreatment: does participation in other public sector services moderate the likelihood of a second maltreatment report?     

Drake B  Jonson-Reid M  Sapokaite L 《Child abuse & neglect》2006,30(11):1201-1226

OBJECTIVE: 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 (7.5 years). METHOD: We model the re-reporting of a child for maltreatment as a function of child, caregiver, service, and neighborhood characteristics using data from birth records, child welfare, income maintenance, Medicaid, adult corrections, juvenile court, special education, law enforcement, and census sources. Bivariate and multivariate analyses are presented, the latter using Cox regression with a robust sandwich covariance matrix estimate to account for the intracluster dependence within tracts. RESULTS: Key results across bivariate and multivariate analyses included a lower rate of re-reporting among children with parents who were high school graduates and/or permanently exited from the first spell on AFDC (p<.0001); and for children in families that received less intensive in-home services compared to those not receiving services, receiving intensive in-home, or foster care services (p<.0001). Higher rates of re-reporting were found for children with Medicaid mental health/substance abuse treatment records (p<.0001) and special education eligibility for emotional disturbance (p<.005). CONCLUSIONS: Caretaker characteristics and non-child welfare service use patterns had a strong association with the likelihood of a child being re-reported to the child welfare agency and should be more heavily attended to by child welfare workers. High rates of service sector overlap suggest that interagency ties and cooperation should be strengthened. The lower risk associated with less intensive in-home services compared to un-served cases may indicate under-identification of in-home service eligibility following a first report of maltreatment.  相似文献   

Artefacts at the liquid interface and their impact in miniaturized biochemical assay     

Brett Litten  Carolyn Blackett  Mark Wigglesworth  Nicholas Goddard  Peter Fielden 《Biomicrofluidics》2015,9(5)

Droplet microfluidic technology has the potential to significantly reduce reagent use, and therefore, lower costs of assays employed in drug discovery campaigns. In addition to the reduction in costs, this technology can also reduce evaporation and contamination which are often problems seen in miniaturized microtitre plate formats. Despite these advantages, we currently advise caution in the use of these microfluidic approaches as there remains a lack of understanding of the artefacts of the systems such as reagent partitioning from droplet to carrier oil and interaction of the biological reagents with the water-oil interface. Both types of artefact can lead to inaccurate and misleading data. In this paper, we present a study of the partitioning of a number of drug-like molecules in a range of oils and evidence of protein binding at the water-oil interface which results in reduced activity of a cytochrome P450 enzyme. Data presented show that the drug-like molecules partitioned the least into fluorocarbon oils and the interaction of the 1A2 cytochrome at the water-oil interface resulted in a lower or complete absence of enzyme activity. This loss of activity of cytochrome 1A2 could be restored by the use of secondary blocking proteins although changes in the pharmacology of known 1A2 inhibitors were observed. The artefacts described here due to reagents partitioning into the carrier oil or protein binding at the water-oil interface significantly impact the potential use of these microfluidic systems as a means to carry out miniaturized biological assays, and further work is needed to understand the impact and reduction of these phenomena.  相似文献   

An Evaluation of Two Hands-On Lab Styles for Plant Biodiversity in Undergraduate Biology     

John M. Basey  Anastasia P. Maines  Clinton D. Francis  Brett Melbourne 《CBE life sciences education》2014,13(3):493-503

We compared learning cycle and expository formats for teaching about plant biodiversity in an inquiry-oriented university biology lab class (n = 465). Both formats had preparatory lab activities, a hands-on lab, and a postlab with reflection and argumentation. Learning was assessed with a lab report, a practical quiz in lab, and a multiple-choice exam in the concurrent lecture. Attitudes toward biology and treatments were also assessed. We used linear mixed-effect models to determine impacts of lab style on lower-order cognition (LO) and higher-order cognition (HO) based on Bloom''s taxonomy. Relative to the expository treatment, the learning cycle treatment had a positive effect on HO and a negative effect on LO included in lab reports; a positive effect on transfer of LO from the lab report to the quiz; negative impacts on LO quiz performance and on attitudes toward the lab; and a higher degree of perceived difficulty. The learning cycle treatment had no influence on transfer of HO from lab report to quiz or exam; quiz performance on HO questions; exam performance on LO and HO questions; and attitudes toward biology as a science. The importance of LO as a foundation for HO relative to these lab styles is addressed.  相似文献   

Measures of Kindergarten Spelling and Their Relations to Later Spelling Performance     

Rebecca Treiman  Brett Kessler  Tatiana Cury Pollo  Brian Byrne  Richard K. Olson 《Scientific Studies of Reading》2016,20(5):349-362

Learning the orthographic forms of words is important for both spelling and reading. To determine whether some methods of scoring children’s early spellings predict later spelling performance better than do other methods, we analyzed data from 374 U.S. and Australian children who took a 10-word spelling test at the end of kindergarten (M age = 6 years 2 months) and a standardized spelling test approximately 2 years later. Surprisingly, scoring methods that took account of phonological plausibility did not outperform methods that were based only on orthographic correctness. The scoring method that is most widely used in research with young children, which allots a certain number of points to each word and which considers both orthographic and phonological plausibility, did not rise to the top as a predictor. Prediction of Grade 2 spelling performance was improved to a small extent by considering children’s tendency to reverse letters in kindergarten.  相似文献   

Engaging students with online assignments: a replacement for digital dropboxes and paper assignments     

Brett J. L. Landry  Sandra J. Hartman 《British journal of educational technology : journal of the Council for Educational Technology》2006,37(5):803-805

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The fine-grained spatial abilities of three seed-caching corvids     

Gibson BM  Kamil AC 《Learning & behavior》2005,33(1):59-66

We used a psychophysical method to examine the ability of three corvid species to discern fine-grained spatial information. Nutcrackers, pinyon jays, and scrub-jays were required to discriminate the distance between two landmarks on a computer screen in an operant chamber. All three species were able to discriminate between arrays that differed by 20 mm; the discrimination gradients for scrub-jays and pinyon jays were sharper than those for nutcrackers, however. The results suggest that differences in spatial memory among these species are not related to differences in fine-grained perception.  相似文献   

Cross-type recidivism among child maltreatment victims and perpetrators     

Jonson-Reid M  Drake B  Chung S  Way I 《Child abuse & neglect》2003,27(8):899-917

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Four narratives about online international students: a critical literature review     

Kyungmee Lee  Brett Bligh 《Distance Education》2019,40(2):153-169

In the current higher education context, offering online programmes is seen as an effective means to recruit more international students. However, supporting online international students studying at a distance is not a simple task for both universities and tutors. The problem mainly stems from a lack of theoretical understanding of online international students and their learning experiences. The present article, therefore, aims to address the gap, by systematically, yet critically reviewing relevant academic narratives about online international students. Our review reveals four types of narratives presented in the literature, describing online international students in particular ways: unspecified others with a rapid increase in their numbers, specific others with deficits, specific others as pedagogical resources and active participants in international learning communities. We discuss the merits and the drawbacks of each type of narratives for online educators seeking pedagogical suggestions about supporting online international students.  相似文献   

Helping,Sharing, and Comforting in Young Children: Links to Individual Differences in Attachment     

Jonathan S. Beier  Jacquelyn T. Gross  Bonnie E. Brett  Jessica A. Stern  David R. Martin  Jude Cassidy 《Child development》2019,90(2):e273-e289

Although attachment theory has long posited a link between early experiences of care and children's prosocial behavior, investigations of this association have not embraced the multifaceted nature of prosociality. This study is the first to assess associations between child attachment and independent observations of helping, sharing, and comforting. Attachment quality in 3- to 5-year-old children (N = 137) was linked to all three prosocial behaviors. Additionally, bifactor analyses revealed distinct associations between attachment and children's general prosocial dispositions and their specific abilities to meet the unique challenges of helping and, marginally, comforting. These findings underscore the importance of considering multiple explanations for links between attachment and prosocial behavior and provide novel insights into sources of variation in children's prosociality.  相似文献   

Marketing for Sport Business Success,B.L. Parkhouse,B.A. Turner,K.S. Miloch (Eds.), Kendall Hunt Publishers,Dubuque, IA (2012), 354 p,ISBN: 978-0-7575-7948-6     

Ellen J. Staurowsky  Karen Weaver  Brett Burchette 《Sport Management Review》2013,16(4):535-536

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