113 research outputs found

    An investigation of the mechanical and surface properties of weft knitted fabrics and their influence on sewability during garment assembly

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    Available from British Library Document Supply Centre- DSC:DXN058266 / BLDSC - British Library Document Supply CentreSIGLEGBUnited Kingdo

    Are workplace health promotion programs effective at improving presenteeism in workers? a systematic review and best evidence synthesis of the literature

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    <p>Abstract</p> <p>Background</p> <p><it>Presenteeism </it>is highly prevalent and costly to employers. It is defined as being present at work, but limited in some aspect of job performance by a health problem.</p> <p>Workplace health promotion (WHP) is a common strategy used to enhance on-the-job productivity. The primary objective is to determine if WHP programs are effective in improving presenteeism. The secondary objectives are to identify characteristics of successful programs and potential risk factors for presenteeism.</p> <p>Methods</p> <p>The Cochrane Library, Medline, and other electronic databases were searched from 1990 to 2010. Reference lists were examined, key journals were hand-searched and experts were contacted. Included studies were original research that contained data on at least 20 participants (≥ 18 years of age), and examined the impacts of WHP programs implemented at the workplace. The <it>Effective Public Health Practice Project Tool for Quantitative Studies </it>was used to rate studies. 'Strong' and 'moderate' studies were abstracted into evidence tables, and a best evidence synthesis was performed. Interventions were deemed successful if they improved the outcome of interest. Their program components were identified, as were possible risk factors contributing to presenteeism.</p> <p>Results</p> <p>After 2,032 titles and abstracts were screened, 47 articles were reviewed, and 14 were accepted (4 strong and 10 moderate studies). These studies contained preliminary evidence for a positive effect of some WHP programs. Successful programs offered organizational leadership, health risk screening, individually tailored programs, and a supportive workplace culture. Potential risk factors contributing to presenteeism included being overweight, a poor diet, a lack of exercise, high stress, and poor relations with co-workers and management. Limitations: This review is limited to English publications. A large number of reviewed studies (70%) were inadmissible due to issues of bias, thus limiting the amount of primary evidence. The uncertainties surrounding presenteeism measurement is of significant concern as a source of bias.</p> <p>Conclusions</p> <p>The presenteeism literature is young and heterogeneous. There is preliminary evidence that some WHP programs can positively affect presenteeism and that certain risk factors are of importance. Future research would benefit from standard presenteeism metrics and studies conducted across a broad range of workplace settings.</p

    Six Student Projects from the North Florida Editorial Workshop

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    In this presentation, six students will discuss digital editing projects they have carried out through the North Florida Editorial Workshop (NFEW). Five of the projects were carried out in the Summer 2020 course DIG3152 Introduction to Electronic Textual Editing, taught by Dr. Clayton McCarl of the Department of Languages, Literatures and Cultures. Emilia Thom undertook the sixth project separately in fulfillment of her capstone requirement for the Hicks Honors College. We worked to edit and encode transcriptions of items from various archives, including UNF Special Collections, the St. Augustine Historical Society, and the PK Yonge Library in Gainesville. The goals of these projects are to expand the historical narrative of northeast Florida and make the documents more accessible to academic communities and the general public. We each provide a summary of our work, along with brief reflections on what we have learned. We presented these projects at the 2021 conference of the National Council on Public History, as part of a session titled “Digital Editing as Public History Pedagogy,” organized by Dr. McCarl and Dr. Karen Cousins, director of the UNF Office of Undergraduate Research. Our editions, with exhibits that provide additional context, are available on the NFEW website (nfew.org)

    Immune induction of human monocyte plasminogen activator. Characteristics of an assay for cell-mediated immunity

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    We characterized immunologic induction of monocyte plasminogen activator (PA) to determine whether assay for PA induction reliably detected cell-mediated immunity (CMI). Mononuclear leukocytes (MNL) were incubated in teflon-lined culture tubes for 1-4 days in the presence or absence of phytohemagglutinin-P (PHA), concanavalin A (Con A) or Candida antigen. PA activity of the monocytes in those suspensions was then measured using a micro fibrin plate assay.Monocytes in stimulated MNL had more PA activity than monocytes in unstimulated MNL. Maximal differences between stimulated and unstimulated cells were seen after 2 days of culture. Dose-response studies demonstrated that PA induction occurred at submitogenic concentrations of stimuli. Peak induction was seen using suboptimally mitogenic concentrations of PHA, Con A and Candida antigen. PA induction in response to Candida stimulation corresponded with skin test results. More than 90% of healthy adults tested had positive assays to all stimuli. LPS, in picogram concentrations, induced PA activity in the absence of lymphocytes, but such induction was prevented by polymyxin B.Supernates from activated MNL also induced PA in purified monocytes. This indirect assay of PA induction was less sensitive than direct assay of the MNL. A standard indirect assay for leukocyte inhibitory factor (LIF) was also less sensitive than the direct PA induction assay.The direct PA induction assay is sensitive and convenient and requires small volumes of blood. It may prove valuable in in vitro analysis of cell-mediated immunity in health and disease.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/25668/1/0000220.pd

    Look Who’s Talking: Eliciting the Voices of Children from Birth to Seven

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    First paragraph: Look who&rsquo;s talking: Eliciting the voices of children from birth to seven was an international seminar series funded by the University of Strathclyde, Glasgow, Scotland, that brought together researchers and practitioners who work with young children (birth to seven) to give and support &lsquo;voice&rsquo; in respect to different aspects of their lived experience; in other words, to elicit voice. The intention was to create a space for individuals working in this relatively underdeveloped field to work in a collaborative process, engaging with associated theory and practice. The aims of the seminars were: to move debate forwards; to develop guidelines and provocations for practice; and to advance understandings of the affordances and constraints on the implementation of Article 12 of the UNCRC with young children. The series comprises two seminars, one in January and one in June 2017, each of three and a half days duration. The first focused predominantly on mapping the field, sharing and discussing experiences and practices and exploring the affordances and constraints of eliciting the voices of those aged seven and under. It is this seminar on which this submission focuses. The second, held in June 2017, aimed to synthesise participants&rsquo; thinking and identify the needs and opportunities for development within the field

    Osteogenic lineage restriction by osteoprogenitors cultured on nanometric grooved surfaces – the role of focal adhesion maturation

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    The differentiation of progenitor cells is dependent on more than biochemical signalling. Topographical cues in natural bone extracellular matrix guide cellular differentiation through the formation of focal adhesions, contact guidance, cytoskeletal rearrangement and ultimately gene expression. Osteoarthritis and a number of bone disorders present as growing challenges for our society. Hence, there is a need for next generation implantable devices to substitute for, or guide, bone repair in vivo. Cellular responses to nanometric topographical cues need to be better understood in vitro in order to ensure the effective and efficient integration and performance of these orthopaedic devices. In this study, the FDA approved plastic polycaprolactone, was embossed with nanometric grooves and the response of primary and immortalised osteoprogenitor cells observed. Nanometric groove dimensions were 240 nm or 540 nm deep and 12.5 Îźm wide. Cells cultured on test surfaces followed contact guidance along the length of groove edges, elongated along their major axis and showed nuclear distortion, they formed more focal complexes and a lower proportions of mature adhesions relative to planar controls. Down-regulation of the osteoblast marker genes RUNX2 and BMPR2 in primary and immortalised cells was observed on grooved substrates. Down-regulation appeared to directly correlate with focal adhesion maturation, indicating the involvement of ERK 1/2 negative feedback pathways following integrin mediated FAK activation

    A Review of Volatile Organic Compound Contamination in Post-Industrial Urban Centers: Reproductive Health Implications Using a Detroit Lens

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    Volatile organic compounds (VOCs) are a group of aromatic or chlorinated organic chemicals commonly found in manufactured products that have high vapor pressure, and thus vaporize readily at room temperature. While airshed VOCs are well studied and have provided insights into public health issues, we suggest that belowground VOCs and the related vapor intrusion process could be equally or even more relevant to public health. The persistence, movement, remediation, and human health implications of subsurface VOCs in urban landscapes remain relatively understudied despite evidence of widespread contamination. This review explores the state of the science of subsurface movement and remediation of VOCs through groundwater and soils, the linkages between these poorly understood contaminant exposure pathways and health outcomes based on research in various animal models, and describes the role of these contaminants in human health, focusing on birth outcomes, notably low birth weight and preterm birth. Finally, this review provides recommendations for future research to address knowledge gaps that are essential for not only tackling health disparities and environmental injustice in post-industrial cities, but also protecting and preserving critical freshwater resources

    Dynamics of an LPS translocon induced by substrate and an antimicrobial peptide

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    Lipopolysaccharide (LPS) transport to the outer membrane (OM) is a crucial step in the biogenesis of microbial surface defenses. Although many features of the translocation mechanism have been elucidated, molecular details of LPS insertion via the LPS transport (Lpt) OM protein LptDE remain elusive. Here, we integrate native MS with hydrogen–deuterium exchange MS and molecular dynamics simulations to investigate the influence of substrate and peptide binding on the conformational dynamics of LptDE. Our data reveal that LPS induces opening of the LptD β-taco domain, coupled with conformational changes on β-strands adjacent to the putative lateral exit gate. Conversely, an antimicrobial peptide, thanatin, stabilizes the β-taco, thereby preventing LPS transport. Our results illustrate that LPS insertion into the OM relies on concerted opening movements of both the β-barrel and β-taco domains of LptD, and suggest a means for developing antimicrobial therapeutics targeting this essential process in Gram-negative ESKAPE pathogens

    Effects of antiplatelet therapy on stroke risk by brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases: subgroup analyses of the RESTART randomised, open-label trial

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    Background Findings from the RESTART trial suggest that starting antiplatelet therapy might reduce the risk of recurrent symptomatic intracerebral haemorrhage compared with avoiding antiplatelet therapy. Brain imaging features of intracerebral haemorrhage and cerebral small vessel diseases (such as cerebral microbleeds) are associated with greater risks of recurrent intracerebral haemorrhage. We did subgroup analyses of the RESTART trial to explore whether these brain imaging features modify the effects of antiplatelet therapy

    Guidance from an NIH Workshop on Designing, Implementing, and Reporting Clinical Studies of Soy Interventions1–4

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    The NIH sponsored a scientific workshop, “Soy Protein/Isoflavone Research: Challenges in Designing and Evaluating Intervention Studies,” July 28–29, 2009. The workshop goal was to provide guidance for the next generation of soy protein/isoflavone human research. Session topics included population exposure to soy; the variability of the human response to soy; product composition; methods, tools, and resources available to estimate exposure and protocol adherence; and analytical methods to assess soy in foods and supplements and analytes in biologic fluids and other tissues. The intent of the workshop was to address the quality of soy studies, not the efficacy or safety of soy. Prior NIH workshops and an evidence-based review questioned the quality of data from human soy studies. If clinical studies are pursued, investigators need to ensure that the experimental designs are optimal and the studies properly executed. The workshop participants identified methodological issues that may confound study results and interpretation. Scientifically sound and useful options for dealing with these issues were discussed. The resulting guidance is presented in this document with a brief rationale. The guidance is specific to soy clinical research and does not address nonsoy-related factors that should also be considered in designing and reporting clinical studies. This guidance may be used by investigators, journal editors, study sponsors, and protocol reviewers for a variety of purposes, including designing and implementing trials, reporting results, and interpreting published epidemiological and clinical studies
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