266 research outputs found

    Assessment Techniques Corresponding to Scientific Texts in Commercial Reading Programs: Do They Promote Scientific Literacy?

    Get PDF
    This research is part of a larger study of commercial reading programs used in Canada in grades 1-6. The specific purposes of the results reported here were to identify and quantify the assessment techniques suggested for the selections that contain scientific content, to show how the assessments differ by grade, to evaluate the nature and quality of the assessments, and to examine the extent to which the assessments help foster scientific literacy. It was found that the assessments occurred in six major forms and employed about a dozen assessment tools that engage students in nearly 20 tasks. Such variety is endorsed in both literacy and science education position statements. The assessments showed some weak trends by grade, but primarily left the purpose of the assessments to teachers’ judgment. The consequence is that teachers probably will choose the assessments for formative rather than summative evaluation, an approach also endorsed by literacy and science education policy statements. Hardly any of the assessments focused on the specificities of learning to read texts that are scientific such as interpreting descriptions of methods and research findings and thus had limited use in promoting this particular aspect of scientific literacy

    The Family Check-Up in a Pediatric Clinic: An Integrated Care Delivery Model to Improve Behaviors in the Home Environment

    Get PDF
    This study examines the feasibility of adapting the Family Check Up (FCU), an evidence-based program to identify and manage behavioral concerns in children ages 4 and 5 years, within a pediatric primary care clinic with an integrated mental health professional. Methods: Caregivers attending their child’s 4 and 5 year-old well child visit were asked to complete a screening tool (Pediatric Symptom Checklist-17; PSC-17) measuring behavioral concerns as part of routine care. Families who screened positively, were referred to the FCU and asked to participate in a study evaluating the intervention. The FCU is a 2-session intervention during which information on home environment and parenting style was collected through tailored questionnaires, videotaped interactions, and a clinical interview. Feasibility was examined using portions of the Reach, Effectiveness, Adoption, Implementation, and Maintenance (REAIM) framework from the Dissemination and Implementation Science field. This study presents preliminary data on the domains of Reach and Adoption over the first 5 months of the FCU. Results: The number of families referred who attended at least one session (Reach) was 77.2%. Current data shows that use of the PSC-17 screening instrument (Adoption) is 91.4% for well child checks and 25% for acute visits. Adoption of those referred to the FCU is 84%, indicating most families screening positively for behavioral concerns were successfully referred to the FCU. Conclusion: Initial results suggest Reach and Adoption rates support the feasibility of adapting a behavioral intervention for delivery in the pediatric clinic. Notably, having an existing integrated care delivery model is a critical piece to this early success. Future directions will continue to explore feasibility of the remaining REAIM domains

    A medium throughput rodent model of relapse from addiction with behavioral and pharmacological specificity

    Get PDF
    One of most formidable problems in the treatment of addiction is the high rate of relapse. The discovery of medicines to help mitigate relapse are aided by animal models that currently involve weeks of training and require surgical preparations and drug delivery devices. The present set of experiments was initiated to investigate a rapid 8-day screening method that utilizes food instead of intravenous drug administration. Male Sprague-Dawley rats were trained in a reinstatement paradigm in which every lever press produced a 45 mg food pellet concurrently paired with a light and tone. Behavior was subsequently extinguished with lever responses producing neither food nor food-associated stimuli. Reinstatement of responding was evaluated under conditions in which the first three responses of every 5 min time bin produced a food pellet along with food-associated stimuli. The mGlu5 receptor antagonists MPEP and MTEP produced a significant reduction in reinstatement while failing to alter responding where every response produced food. The cannabinoid CB1 receptor antagonist rimonabant and the mGlu2/3 receptor agonist LY379268 also selectively reduced reinstatement. Other compounds including clozapine, d-amphetamine, chlordiazepoxide, ABT-431, naltrexone and citalopram were without effect. The results suggest that relapse-like behavioral effects can be extended to non-pharmacological reinforcers. Drug effects demonstrated both behavioral and pharmacological specificity. The present experimental design thus allows for efficient and rapid assessment of the effects of drugs that might be useful in the treatment of addiction-associated relapse

    Heritable Variation in Garter Snake Color Patterns in Postglacial Populations

    Get PDF
    Global climate change is expected to trigger northward shifts in the ranges of natural populations of plants and animals, with subsequent effects on intraspecific genetic diversity. Investigating how genetic diversity is patterned among populations that arose following the last Ice Age is a promising method for understanding the potential future effects of climate change. Theoretical and empirical work has suggested that overall genetic diversity can decrease in colonial populations following rapid expansion into postglacial landscapes, with potential negative effects on the ability of populations to adapt to new environmental regimes. The crucial measure of this genetic variation and a population's overall adaptability is the heritable variation in phenotypic traits, as it is this variation that mediates the rate and direction of a population's multigenerational response to selection. Using two large full-sib quantitative genetic studies (NManitoba = 144; NSouth Dakota = 653) and a smaller phenotypic analysis from Kansas (NKansas = 44), we compared mean levels of pigmentation, genetic variation and heritability in three pigmentation traits among populations of the common garter snake, Thamnophis sirtalis, along a north-south gradient, including a postglacial northern population and a putative southern refuge population. Counter to our expectations, we found that genetic variance and heritability for the three pigmentation traits were the same or higher in the postglacial population than in the southern population

    Reduction in overt and silent stroke recurrence rate following cerebral revascularization surgery in children with sickle cell disease and severe cerebral vasculopathy

    Get PDF
    Background Children with sickle cell disease (SCD) and moyamoya may benefit from indirect cerebral revascularization surgery in addition to chronic blood transfusion therapy for infarct prevention. We sought to compare overt and silent infarct recurrence rates in children with SCD undergoing revascularization. Methods This was a retrospective cohort study of all children with SCD and moyamoya treated at two children’s hospitals. Clinical events and imaging studies were reviewed. Results Twenty-seven children with SCD and confirmed moyamoya receiving chronic transfusion therapy were identified, of whom 12 underwent indirect cerebral revascularization. Two subjects had post-operative transient ischemic attacks and another had a subarachnoid blood collection, none of which caused permanent consequences. Two subjects had surgical wound infections. Among these 12 children, the rate of overt and silent infarct recurrence decreased from 13.4 infarcts/100 patient-years before revascularization to 0 infarcts/100 patient-years after revascularization (p=0.0057); the post-revascularization infarct recurrence rate was also significantly lower than the overall infarct recurrence of 8.87 infarcts/100 patient-years in 15 children without cerebral revascularization (p=0.025). Conclusion The rate of overt and silent infarct recurrence was significantly lower following indirect cerebral revascularization. A prospective study of cerebral revascularization in children with SCD is needed

    Drug Use Behaviors: 2020 Treatment Providers Survey, Dataset, and Interview Final Reports

    Get PDF
    The purpose of this needs assessment is to deepen DOP’s (NE DHHS Drug Overdose Prevention (DOP) program) understanding of individuals’ drug use behaviors in Nebraska through the lens of treatment providers. The results of this study will aid DOP in providing training and other resources to treatment centers, focusing prevention efforts, and informing their strategic plan and future studies. Ultimately, this study will support DOP’s efforts to reduce opioid-involved fatal and non-fatal overdoses in Nebraska

    Chapter 3: Choosing the Important Outcomes for a Systematic Review of a Medical Test

    Get PDF
    In this chapter of the Evidence-based Practice Centers Methods Guide for Medical Tests, we describe how the decision to use a medical test generates a broad range of outcomes and that each of these outcomes should be considered for inclusion in a systematic review. Awareness of these varied outcomes affects how a decision maker balances the benefits and risks of the test; therefore, a systematic review should present the evidence on these diverse outcomes. The key outcome categories include clinical management outcomes and direct health effects; emotional, social, cognitive, and behavioral responses to testing; legal and ethical outcomes, and costs. We describe the challenges of incorporating these outcomes in a systematic review, suggest a framework for generating potential outcomes for inclusion, and describe the role of stakeholders in choosing the outcomes for study. Finally, we give examples of systematic reviews that either included a range of outcomes or that might have done so. The following are the key messages in this chapter: Consider both the outcomes that are relevant to the process of testing and those that are relevant to the results of the test.Consider inclusion of outcomes in all five domains: clinical management effects, direct test effects; emotional, social, cognitive and behavioral effects; legal and ethical effects, and costs.Consider to which group the outcomes of testing are most relevant.Given resource limitations, prioritize which outcomes to include. This decision depends on the needs of the stakeholder(s), who should be assisted in prioritizing the outcomes for inclusion
    corecore