1,069 research outputs found

    Characterization of Tropical Cyclone Intensity Using Microwave Imagery

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    In the absence of wind speed data from aircraft reconnaissance of tropical cyclones (TCs), analysts rely on remote sensing tools to estimate TC intensity. For over 40 years, the Dvorak technique has been applied to estimate intensity using visible and infrared (IR) satellite imagery, but its accuracy is sometimes limited when the radiative effects of high clouds obscure the TC convective structure below. Microwave imagery highlights areas of precipitation and deep convection revealing different patterns than visible and IR imagery. This study explores application of machine learning algorithms to identify patterns in microwave imagery to infer storm intensity, particularly focusing on weaker storms where other analysis methods struggle. An analysis of 91 GHz Special Sensor Microwave Imager/Sensor imagery onboard various Defense Meteorological Satellite Program assets from February 2006 to 2017 is presented. Incorporating pattern recognition methods into the current analysis process at the Joint Typhoon Warning Center has the potential to significantly improve TC intensity estimates across all basins of responsibility

    Social re-orientation and brain development: An expanded and updated view.

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    Social development has been the focus of a great deal of neuroscience based research over the past decade. In this review, we focus on providing a framework for understanding how changes in facets of social development may correspond with changes in brain function. We argue that (1) distinct phases of social behavior emerge based on whether the organizing social force is the mother, peer play, peer integration, or romantic intimacy; (2) each phase is marked by a high degree of affect-driven motivation that elicits a distinct response in subcortical structures; (3) activity generated by these structures interacts with circuits in prefrontal cortex that guide executive functions, and occipital and temporal lobe circuits, which generate specific sensory and perceptual social representations. We propose that the direction, magnitude and duration of interaction among these affective, executive, and perceptual systems may relate to distinct sensitive periods across development that contribute to establishing long-term patterns of brain function and behavior

    Cross-sectional associations between variations in ankle shape by statistical shape modeling, injury history, and race : the Johnston County Osteoarthritis Project

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    Rheumatology Research Foundation Medical Student Preceptorship Award (Lateef/Nelson), NIAMS K23 AR061406 (Nelson); NIH/NIAMS P60AR064166 and U01DP003206 (Jordan/Renner), NIH/NIAMS R01AR067743 (Golightly). The funders had no role in study design; collection, analysis, or interpretation of data; writing the manuscript or the decision to submit for publication.Peer reviewedPublisher PD

    Alcohol-Related Consequences Among First-Year University Students: Effectiveness of a Web-Based Personalized Feedback Program

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    This study evaluated the effectiveness of a web-based personalized feedback program using an objective measure of alcohol-related consequences. Participants were assigned to either the intervention group or an assessment-only control group during university orientation. Sanctions received for campus alcohol policy violations were tracked over the academic year. Results indicated high-risk drinkers in the control group received significantly more sanctions than other students. Results support the effectiveness of web-based interventions

    A creative conversation for re-imagining creative visual methods with children and young people in pandemic times and beyond

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    In this project we forward insights about the importance of being in ‘the room where it happens’ – creating tactility and togetherness in the research encounter – for research with children and young people in times of the COVID-19 pandemic and beyond. Created in response to the intense uptake of digital methods catalysed by COVID-19, in this project we productively re-imagine moments from our creative visual research with children and young people from before the COVID-19 pandemic. This re-imagining began early in 2020 and has continued to evolve, incorporating our shifting perspectives and ‘thinking with’ the scholarship of leading creative methodologists. The creative output is in the form of a ‘Prezine’ which is our concept and is a portmanteau bringing together ‘Prezi’ a presentation tool, and ‘zine’. The Prezine charts our creative conversation, moving between four connected rhizomes of thinking about creative research with children and young people: ‘the room where it happens’, being in the encounter, spaces for the unexpected, and what we are calling ‘methodological alchemy’. The Prezine documents our experiment in thinking about research futures where we openly and creatively explore the process of making this reflective resource about research ‘becomings’

    Provider Perspectives in Serving Children Who Are Deaf or Hard of Hearing and Their Families using Tele-Intervention

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    Purpose: In the second of a two-part survey series, this cross-sectional survey study explored professionals’ perceptions of tele-intervention (TI) services for young children who are deaf or hard of hearing. Using Likert rating scales and open-ended questions, the survey queried professional’s confidence in providing TI services, including their views and recommendations. Data were collected March-May 2020, not realizing the survey release would coincide with the Covid-19 pandemic and the influx of unexpected virtual services. For this reason, data were stratified between those who had been providing TI services for more than versus less than three months. Responses for in-person providers were also evaluated for additional context. Methods: Responses from 123 participants who provided TI and 21 participants who provided in-person services (n=144) were analyzed using descriptive statistics. Cronbach’s alpha showed high internal consistency for all Likert scales; items of each subscale were sum-scored to examine relationships across queried areas of service delivery. Results: Provider perceptions of TI services were largely favorable. However, providers with more than three months’ experience were significantly more confident in coaching and supporting parents through TI, including more overall favorable views of a TI delivery than providers with less than three months of TI experience. There were no differences in provider confidence in coaching and supporting parents between providers with more than three months’ TI experience using TI delivery and in-person providers using in-person delivery. Conclusions: Experienced providers reported confidence in service delivery and positive views of the TI model. Programs seeking to implement virtual services should consider TI training, with a commitment to TI longevity to improve provider efficacy and confidence in TI services

    Parents’ Perspectives about Tele-Intervention Services for their Children who are Deaf or Hard of Hearing

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    Purpose: In the first of a two-part survey series, this cross-sectional survey study explored parent perceptions of tele-intervention (TI) services for their young children who are deaf or hard of hearing. Using Likert rating scales, the survey queried parent confidence in understanding their child’s language development, perceptions of the coaching and support they received, the parent-professional partnership, and overall views and recommendations. Data were collected March-May 2020, not realizing the survey release would coincide with the Covid-19 pandemic and the influx of unexpected virtual services. For this reason, data were stratified between those who had received TI services for more than versus less than three months. Responses for in-person services were also evaluated for additional context. Methods: Responses from 48 participants who received TI and 18 participants who received in-person services (n=66) were analyzed using descriptive statistics. Cronbach’s alpha showed high internal consistency for all Likert scales; items of each subscale were sum-scored to examine relationships across queried areas of service delivery. Results: Ninety-six percent of all respondents were highly or mostly satisfied with their TI services and 90% would definitely or probably recommend TI to other families. Overall positive findings were found across Likert scale queries, with no differences between parent perceptions of TI and in-person services, nor between TI for more than versus less than three months. However, findings also highlighted areas in which TI and in-person providers could improve intervention effectiveness, including coaching and supports to optimize parent confidence in understanding and facilitating their child’s language and communication goals. Conclusions: Parent perceptions of the TI delivery model were favorable. Implications and recommendations for both TI and in-person providers are discussed

    Neuropsychological Outcomes of U.S. Veterans with Report of Remote Blast-Related Concussion and Current Psychopathology

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    This study explored whether remote blast-related MTBI and/or current Axis I psychopathology contribute to neuropsychological outcomes among OEF/OIF veterans with varied combat histories. OEF/OIF veterans underwent structured interviews to evaluate history of blast-related MTBI and psychopathology and were assigned to MTBI (n = 18), Axis I (n = 24), Co-morbid MTBI/Axis I (n = 34), or post-deployment control (n = 28) groups. A main effect for Axis I diagnosis on overall neuropsychological performance was identified (F(3,100) = 4.81; p = .004), with large effect sizes noted for the Axis I only (d = .98) and Co-morbid MTBI/Axis I (d = .95) groups relative to the control group. The latter groups demonstrated primary limitations on measures of learning/memory and processing speed. The MTBI only group demonstrated performances that were not significantly different from the remaining three groups. These findings suggest that a remote history of blast-related MTBI does not contribute to objective cognitive impairment in the late stage of injury. Impairments, when present, are subtle and most likely attributable to PTSD and other psychological conditions. Implications for clinical neuropsychologists and future research are discussed. (JINS, 2012, 18, 1–11

    Assessing the Readability and Usability of Online H-E-L-P Intervention for IPV Survivors

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    Purpose: The purpose of this study was to assess the readability and usability of an online HELP (Health, Education, and Legal Program) intervention for women experiencing IPV (Intimate Partner Violence) by asking graduate nursing students to review in class nine online HELP intervention modules. Design: A descriptive online survey administered to 15 graduate nursing students\ud was used to assess the readability and usability of an online HELP intervention. Methods: Participants were asked to perform the following activities: 1) reading the nine HELP modules on PowerPoint as posted on Blackboard (a web-based course management program), 2) filling in five blank lines under each heading (HEALTH, EDUCATION, LEGAL, and PROGRAM), by writing words or terms on the line after each heading, 3) ranking the words within each heading (with #1 as the highest and #5 as the lowest), 4) engaging in a class discussion of the rationale for the ranking, 5) re-ranking, and 6) voting on the ranking. The results were compiled to yield a master rank and vote order for each heading between 12 (received 12 votes) and 15 (received 15 votes) of the words that were ranked #1. Results: The words that were ranked #1 under each heading and the number of votes received were: Under HEALTH: Depression (15), Anger (14), Anxiety (13), and Pain (12); EDUCATION: Safety (15), Injury (14), Social Support (13) and Parenting/Child Care (12); LEGAL: Protection from Abuse (15), Attorney (14), Court/Hearing (13), and Rights (12); PROGRAM: Internet (15), Online (14), Intervention (13) and Resources (12). Conclusions: HELP intervention is readable and usable however, HELP needs to be piloted to ensure that survivors of IPV participants can access and benefit from HELP intervention
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