467 research outputs found
Influences of Locus of Control on Thinking About a Spinal Cord Injury
In this study, the effect of locus of control on a visualization of a spinal-cord injury was investigated. Research has shown that locus of control plays an important role in determining the control one perceives to have over oneself and events. Life satisfaction is usually lowered because of negative behavior changes one goes through when experiencing a traumatic event, such as a spinal cord injury (Livneh, 2001). The research examined the hypothesis that those with an internal locus of control will be less upset following an intense visualization of a spinal-cord injury (SCI) compared to those with an external locus of control. The study used a total of 32 college students from Nova Southeastern University. The results indicated that those who had an internal locus of control were not any less upset than those with an external locus of control
The inclusive, manumit, practice-based, accessible, community-focused and timely framework
Background:Â This article highlights how the Inclusive, Manumit, Practice-based, Accessible, Community-focused and Timely (I.M.P.A.C.T.) framework, a practical evaluation tool grounded in indigenous and culturally responsive and equitable evaluation (CREE) practices, can help expand the narrative from Made in Africa to Africa-led evaluation.
Objectives:Â When building decolonised evaluation methods that are Africa-led, it is imperative that there be practical tools for evaluators. The authors describe their personal and professional influences on evaluation practice and contend that evaluation that fails to account for peopleâs lived experiences often fails to produce solutions with sustainable, positive impacts.
Method:Â The I.M.P.A.C.T. framework, created by the authors and briefly outlined, is meant for use to advance CREE among multicultural, under-resourced communities.
Results:Â The framework can help illuminate the multifaceted contexts of various countries represented in community-oriented work.
Conclusion:Â Evaluators may apply it when planning, designing or implementing evaluations.
Contribution:Â Furthermore, the simplicity of the I.M.P.A.C.T. framework encourages evaluators to keep in mind what socio-cultural dimensions to consider in advance of and while carrying out an evaluation
Nutritional and metabolic status of children with autism vs. neurotypical children, and the association with autism severity
<p>Abstract</p> <p>Background</p> <p>The relationship between relative metabolic disturbances and developmental disorders is an emerging research focus. This study compares the nutritional and metabolic status of children with autism with that of neurotypical children and investigates the possible association of autism severity with biomarkers.</p> <p>Method</p> <p>Participants were children ages 5-16 years in Arizona with Autistic Spectrum Disorder (n = 55) compared with non-sibling, neurotypical controls (n = 44) of similar age, gender and geographical distribution. Neither group had taken any vitamin/mineral supplements in the two months prior to sample collection. Autism severity was assessed using the Pervasive Development Disorder Behavior Inventory (PDD-BI), Autism Treatment Evaluation Checklist (ATEC), and Severity of Autism Scale (SAS). Study measurements included: vitamins, biomarkers of vitamin status, minerals, plasma amino acids, plasma glutathione, and biomarkers of oxidative stress, methylation, sulfation and energy production.</p> <p>Results</p> <p>Biomarkers of children with autism compared to those of controls using a t-test or Wilcoxon test found the following statistically significant differences (p < 0.001): Low levels of biotin, plasma glutathione, RBC SAM, plasma uridine, plasma ATP, RBC NADH, RBC NADPH, plasma sulfate (free and total), and plasma tryptophan; also high levels of oxidative stress markers and plasma glutamate. Levels of biomarkers for the neurotypical controls were in good agreement with accessed published reference ranges. In the Autism group, mean levels of vitamins, minerals, and most amino acids commonly measured in clinical care were within published reference ranges.</p> <p>A stepwise, multiple linear regression analysis demonstrated significant associations between several groups of biomarkers with all three autism severity scales, including vitamins (adjusted R<sup>2 </sup>of 0.25-0.57), minerals (adj. R<sup>2 </sup>of 0.22-0.38), and plasma amino acids (adj. R<sup>2 </sup>of 0.22-0.39).</p> <p>Conclusion</p> <p>The autism group had many statistically significant differences in their nutritional and metabolic status, including biomarkers indicative of vitamin insufficiency, increased oxidative stress, reduced capacity for energy transport, sulfation and detoxification. Several of the biomarker groups were significantly associated with variations in the severity of autism. These nutritional and metabolic differences are generally in agreement with other published results and are likely amenable to nutritional supplementation. Research investigating treatment and its relationship to the co-morbidities and etiology of autism is warranted.</p
Auntie knows best? public broadcasters and current affairs knowledge
Public service broadcasters (PSBs) are a central part of national news media landscapes. In many countries, PSBs are the first choice of citizens when it comes to news providers. And in perhaps more countries still, PSBs are thought of as specialists in provision of hard news. We test this proposition here using survey data from a large crossnational survey involving indicators of current affairs knowledge and media consumption. Specifically, we examine whether exposure to public versus commercial news influences the knowledge citizens possess about current affairs, both domestically and internationally. We
also test, using propensity score analysis, whether there is variation across PSBs in this regard. Results indicate that compared to commercial news, watching PSB has a net
positive influence on knowledge of hard news, though not all PSBs are equally effective in contributing to knowledge acquisition. This knowledge gap between PSB and commercial
news media consumption appears to be mitigated by factors such as de jure independence,proportion of public financing, and audience share
Application of 3D MAPs pipeline identifies the morphological sequence chondrocytes undergo and the regulatory role of GDF5 in this process
The activity of epiphyseal growth plates, which drives long bone elongation, depends on extensive changes in chondrocyte size and shape during differentiation. Here, we develop a pipeline called 3D Morphometric Analysis for Phenotypic significance (3D MAPs), which combines light-sheet microscopy, segmentation algorithms and 3D morphometric analysis to characterize morphogenetic cellular behaviors while maintaining the spatial context of the growth plate. Using 3D MAPs, we create a 3D image database of hundreds of thousands of chondrocytes. Analysis reveals broad repertoire of morphological changes, growth strategies and cell organizations during differentiation. Moreover, identifying a reduction in Smad 1/5/9 activity together with multiple abnormalities in cell growth, shape and organization provides an explanation for the shortening of Gdf5 KO tibias. Overall, our findings provide insight into the morphological sequence that chondrocytes undergo during differentiation and highlight the ability of 3D MAPs to uncover cellular mechanisms that may regulate this process
Ethical, legal, and social implicationsĂÂ ofĂÂ learning health systems
Peer Reviewedhttps://deepblue.lib.umich.edu/bitstream/2027.42/141917/1/lrh210051-sup-0001-Supplementary_info.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/141917/2/lrh210051.pdfhttps://deepblue.lib.umich.edu/bitstream/2027.42/141917/3/lrh210051_am.pd
The Physical Conditions of a Lensed Star-forming Galaxy at z=1.7
We report rest-frame optical Keck/NIRSPEC spectroscopy of the bright lensed
galaxy RCSGA 032727-132609 at z=1.7037. From precise measurements of the
nebular lines, we infer a number of physical properties: redshift, extinction,
star formation rate, ionization parameter, electron density, electron
temperature, oxygen abundance, and N/O, Ne/O, and Ar/O abundance ratios. The
limit on [O III]~4363 A tightly constrains the oxygen abundance via the
"direct" or electron temperature method, for the first time in an
average-metallicity galaxy at z~2. We compare this result to several standard
"bright-line" O abundance diagnostics, thereby testing these
empirically-calibrated diagnostics in situ. Finally, we explore the positions
of lensed and unlensed galaxies in standard diagnostic diagrams, and explore
the diversity of ionization conditions and mass--metallicity ratios at z=2.Comment: ApJ in press. 15 pages, 7 figure
Beyond synthesis: Augmenting systematic review procedures with practical principles to optimise impact and uptake in educational policy and practice
Whilst systematic reviews, meta-analyses and other forms of synthesis are often constructed as sitting proudly atop the hierarchy of research evidence, their limited impact on educational policy and practice has been criticised. In this article, we analyse why systematic reviews do not benefit users of evidence more consistently and suggest how review teams can optimise the impact of their work. We introduce the Beyond Synthesis Impact Chain (BSIC), an integrated framework of practical strategies for enhancing the impact of systematic reviews. Focusing upon examples from health professions education, we propose that review teams can optimise the impact of their work by employing strategies that 1) focus on practical problems and mindful planning in collaboration with users; 2) ensure reviews are relevant and syntheses reflexively account for usersâ needs; and 3) couch reports in terms that resonate with usersâ needs and increase access through targeted and strategic dissemination. We argue that combining practical principles with robust and transparent procedures can purposefully account for impact, and foster the uptake of review evidence in educational policy and practice. For systematic review teams, this paper offers strategies for enhancing the practical utility and potential impact of systematic reviews and other forms of synthesis
Depression Symptoms and Antidepressant Medicine Use in Diabetes Prevention Program Participants
OBJECTIVE:
To assess depression markers (symptoms and antidepressant medicine use) in Diabetes Prevention Program (DPP) participants and to determine whether changes in depression markers during the course of the study were associated with treatment arm, weight change, physical activity level, or participant demographic characteristics.
RESEARCH DESIGN AND METHODS:
DPP participants (n = 3,187) in three treatment arms (intensive lifestyle, metformin, and placebo) completed the Beck Depression Inventory (BDI) and reported on use of antidepressant medicines at randomization and subsequently at each annual visit (average duration in study 3.2 years).
RESULTS:
On study entry, 10.3% of participants had BDI scores > or =11, which was used as a threshold for mild depression, 5.7% took antidepressant medicines, and 0.9% had both depression markers. During the DPP, the proportion of participants with elevated BDI scores declined (from 10.3% at baseline to 8.4% at year 3), while the proportion taking antidepressant medicines increased (from 5.7% at baseline to 8.7% at year 3), leaving the proportion with either marker unchanged. These time trends were not significantly associated with the DPP treatment arm. Depression markers throughout the study were associated with some participant demographic factors, adjusted for other factors. Men were less likely to have elevated depression scores and less likely to use antidepressant medicine at baseline (9.0% of men and 17.9% of women had at least one marker of depression) and throughout the study (P or =11 (P = 0.03), but white participants were more likely to be taking antidepressant medicine than any other racial/ethnic group (P <0.0001).
CONCLUSIONS:
DPP participation was not associated with changes in levels of depression. Countervailing trends in the proportion of DPP participants with elevated depression symptoms and the proportion taking antidepressant medicine resulted in no significant change in the proportion with either marker. The finding that those taking antidepressant medicine often do not have elevated depression symptoms indicates the value of assessing both markers when estimating overall depression rates
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