1,015 research outputs found

    Using a Wiki to Enhance Library Instruction

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    A wiki is a type of social software that allows users to write, share, and edit content in real-time, with only rudimentary skills in Web page creation. Moreover it is safe to say that most of what is being written regarding wikis in librarianship tends to focus on wiki-based reference sources, their questionable credibility, and how this question of credibility may impact information literacy. Outside of this contentious topic are a wide range of multidisciplinary articles that focus on the collaborative uses of wikis. However, so far, the library literature appears to lack articles that discuss the application of wikis in library instruction. This article hopes to address this deficiency by chronicling Butler University Libraries' use of a wiki in librarian instruction

    Automate Nuclei Detection Using Neural Networks

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    Nuclei identification is a pivotal first step in many areas of biomedical research. Pathologists often observe images containing microscopic nuclei as part of their day to day jobs. During research, pathologists must identify nuclei characteristics from microscopic images such as: volume of nuclei, size, density and individual position within image. The pathology field can benefit from image detection enhancements done through the use of computer image segmentation techniques. This research presents methods that can be used to identify all the cell nuclei contained in images. Multiple techniques were experimented with such as edge detection and Convolutional Neural Networks with U-Net architecture. The data for training these models was sourced from the 2018 Data Science Bowl sponsored by Kaggle and Booz, Allen, Hamilton. As a result, there were various methods identified to assist the pathology industry for automating nuclei detection by using computer image detection methods. These computer methods rapidly process images for research purposes, with a reasonably high accuracy which has the potential to greatly accelerate the pace of research

    An exploratory study identifying a possible response shift phenomena of the Glasgow Hearing Aid Benefit Profile (GHABP)

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    A then-test technique was used to investigate the possibility of a response shift in the Glasgow hearing aid benefit profile (GHABP). Following completion of part 1 of the GHABP, 16 adults were invited for hearing-aid follow up appointments. In accordance with then-test technique, participants were asked to think back to before they had their hearing-aids fitted and the GHABP part 1 was completed again to re-establish the disability and handicap scores. These scores were then compared with the initial GHABP part I scores. Paired T testing and Wilcoxon Rank tests were carried out to investigate the statistical significance of the response shift effect. Statistically significant differences were seen between initial and retrospective GHABP (disability) scores using t test. No significant differences could be seen between the initial and retrospective handicap scores. Results suggest participants may have demonstrated a possible response shift phenomenon with the disability construct of the GHABP questionnaire, related to a possible re-calibration effect or a denial of disability effect. This exploratory study suggests that the GHABP questionnaire may be subject to a response shift phenomena. We suggest that further more robust studies are completed to verify this and recommend that this could have psychological impact on participants when explaining the results of the outcome measure and may affect hearing aid use. There is also potential for this phenomenon to affect global GHABP scores specifically when demonstrating to stakeholders the overall success of an audiology service

    Changes to DPPC domain structure in the presence of carbon nanoparticles

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    DPPC (dipalmitoylphosphatidylcholine) is a disaturated lipid capable of forming closely packed monolayers at the air–liquid interface of the lung and allows the surface tension within the alveoli to reduce to almost zero and thus prevent alveolar collapse. Carbon nanoparticles are formed in natural and man-made combustion events, including diesel engines, and are capable of reaching the alveolar epithelium during breathing. In this work, we have used Brewster angle microscopy and neutron reflectivity to study the effect of differing concentrations of carbon nanoparticles on the structure of DPPC monolayer as the monolayer is subject to compression and expansion. The results show that the inclusion of carbon nanoparticles within a DPPC monolayer affects the formation and structure of the lipid domains. The domains lose their circular structure and show a crenated structure as well as a reduction in overall size of the domains. This change in structure is also evident following expansion of the lipid monolayer, suggesting that some carbon nanoparticles may remain associated with the monolayer. This observation could have an important implication regarding the removal of nanosized airborne pollutants from the human lung

    Comparison of suicidal ideation, suicide attempt and suicide in children and young people in care and non-care populations: systematic review and meta-analysis of prevalence

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    Suicide in children and young people is a major public health concern. However, it is unknown whether individuals who have been in the care of the child welfare system are at an elevated risk. Care is presently defined as statutory provision of in-home care (e.g. child living with birth family but in receipt of legal order involving supervision by social workers) or out-of-home care (e.g. foster care, residential care and kinship care). This present paper presents a systematic review and meta-analysis comparing the prevalence of suicidal ideation, suicide attempt and suicide in children and young people placed in care with non-care populations. A systematic search was conducted of 14 electronic bibliographic databases and 32 websites. Of 2811 unique articles identified, five studies published between 2001 and 2011 met the inclusion criteria. Studies reported on 2448 incidents of suicidal ideation, 3456 attempted suicides and 250 suicides. The estimated prevalence of suicidal ideation was 24.7% in children and young people in care compared to 11.4% in non-care populations. The prevalence of suicide attempt was 3.6% compared to 0.8%. Two studies reported on suicide. Suicide risk in children and young people in care was lower in one study (0% vs 0.9%) and higher in the second (0.27% vs 0.06%). The results of the systematic review and metaanalysis confirm that suicide attempts are more than three times as likely in children and young people placed in the care compared to non-care populations. Targeted interventions to prevent or reduce suicide attempt in this population may be required. Further comparative studies are needed to establish if children and young people in care are at an elevated risk of suicidal ideation and suicide

    Assessment and optimisation of STCA performance: Using the Pareto optimal receiver operating characteristic

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    EUROCONTROL Annual Safety R&D Seminar (2008), Southampton, UK, 22-24 October 2008Short Term Conflict Alert (STCA) systems are complex software programs, with many parameters that must be adjusted to achieve best performance. We describe a simple evolutionary algorithm for optimising the trade-off between wanted alerts and nuisance alerts. The procedure yields an estimate of the Pareto optimal Receiver Operating Characteristic for the STCA system and we discuss additional uses of this for characterising and comparing the performance of STCA systems and airspaces
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