216 research outputs found

    Determining the degree of collaboration readiness for regional transportation systems: The formulation of a model

    Get PDF
    The purpose of this study was to identify factors, both governmental and universal, that indicate the degree of readiness and/or potential for success of a government collaborative project in the field of regional rapid mass transportation. The study is important because collaboration has been recognized as a tool that can help address such challenges as demonstrating the responsible use of limited resources, anticipating converging technologies, and reacting to rapidly changing technologies. There was very limited availability of tools to assist in ensuring successful collaborations. Although tools have been developed that gauge the degree of collaborative readiness of a project, such tools do not address the specific needs of a regional transportation project. A Modified Delphi approach was used to address the research questions, and included a panel of experts with extensive experience in the field of the research phenomenon. The research questions addressed the identification of the factors that impact successful collaborations for governmental entities and whether or not these factors could be incorporated into a model that when used would increase the likelihood of success of a regional mass transportation project. This research yielded a list of factors that enhance the chances of success of such projects and proposes a model designed to guide the leaders of potential regional transportation projects. The suggestions for those planning a regional transportation project include: (1) when creating regional transit authorities, consider the factors identified in this study, (2) use the factors to track the progress of the collaborative project during the preliminary work phase, and (3) institute a policy for the creation of a regional advisory board consisting of local representation, and (4) use the factors identified by this study to guide the policy development phase as supportive of a Regional Transit Authority. Future researchers using a Delphi approach should consider working with a membership-oriented organization specific to their research study rather than people with specific job titles

    Reliability of histopathologic diagnosis of fibrotic interstitial lung disease: an international collaborative standardization project

    Get PDF
    Malaltia pulmonar intersticial; Fibrosi pulmonar; Pneumònia intersticial habitualEnfermedad pulmonar intersticial; Fibrosis pulmonar; Neumonía intersticial habitualInterstitial lung disease; Pulmonary fibrosis; Usual interstitial pneumoniaBackground Current interstitial lung disease (ILD) diagnostic guidelines assess criteria across clinical, radiologic and pathologic domains. Significant interobserver variation in histopathologic evaluation has previously been shown but the specific source of these discrepancies is poorly documented. We sought to document specific areas of difficulty and develop improved criteria that would reduce overall interobserver variation. Methods Using an internet-based approach, we reviewed selected images of specific diagnostic features of ILD histopathology and whole slide images of fibrotic ILD. After an initial round of review, we confirmed the presence of interobserver variation among our group. We then developed refined criteria and reviewed a second set of cases. Results The initial round reproduced the existing literature on interobserver variation in diagnosis of ILD. Cases which were pre-selected as inconsistent with usual interstitial pneumonia/idiopathic pulmonary fibrosis (UIP/IPF) were confirmed as such by multi-observer review. Cases which were thought to be in the spectrum of chronic fibrotic ILD for which UIP/IPF were in the differential showed marked variation in nearly all aspects of ILD evaluation including extent of inflammation and extent and pattern of fibrosis. A proposed set of more explicit criteria had only modest effects on this outcome. While we were only modestly successful in reducing interobserver variation, we did identify specific reasons that current histopathologic criteria of fibrotic ILD are not well defined in practice. Conclusions Any additional classification scheme must address interobserver variation in histopathologic diagnosis of fibrotic ILD order to remain clinically relevant. Improvements to tissue-based diagnostics may require substantial resources such as larger datasets or novel technologies to improve reproducibility. Benchmarks should be established for expected outcomes among clinically defined subgroups as a quality metric.This research did not receive any specific grant from funding agencies in the public, commercial or not-for-profit sectors

    An evaluation of transmission routes for low pathogenicity avian influenza virus among chickens sold in live bird markets

    Get PDF
    AbstractMany theories about the modes of avian influenza virus (AIV) transmission have been proposed, but few have been quantified, and none within a flock or live bird market (LBM) setting where birds are often kept in stacked cages. We describe a novel experimental design and the results collected for the purpose of estimating transmission rates specific to the potential modes of AIV transmission within an LBM. Chickens of the strains and ages found in California LBMs were inoculated with low pathogenicity AIV H6N2. Aerosol exposure was found to be the most important route of transmission for this H6N2 AIV. The handling of infectious chickens resulted in the transmission of H6N2 AIV, though the virus was not detectible by rRT-PCR. Chickens with fecal exposure to infected birds (median=8.0 DPI) had detectable virus earlier than in those with aerosol exposure only (median=10.0 DPI). Changes in the hemagglutinin sequence were not found to be associated with oropharyngeal or cloacal shedding in this study

    Diffuse alveolar damage (DAD) resulting from coronavirus disease 2019 Infection is Morphologically Indistinguishable from Other Causes of DAD

    Full text link
    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/162704/2/his14180.pdfhttp://deepblue.lib.umich.edu/bitstream/2027.42/162704/1/his14180_am.pd

    Pan-Cancer Analysis of lncRNA Regulation Supports Their Targeting of Cancer Genes in Each Tumor Context

    Get PDF
    Long noncoding RNAs (lncRNAs) are commonly dys-regulated in tumors, but only a handful are known toplay pathophysiological roles in cancer. We inferredlncRNAs that dysregulate cancer pathways, onco-genes, and tumor suppressors (cancer genes) bymodeling their effects on the activity of transcriptionfactors, RNA-binding proteins, and microRNAs in5,185 TCGA tumors and 1,019 ENCODE assays.Our predictions included hundreds of candidateonco- and tumor-suppressor lncRNAs (cancerlncRNAs) whose somatic alterations account for thedysregulation of dozens of cancer genes and path-ways in each of 14 tumor contexts. To demonstrateproof of concept, we showed that perturbations tar-geting OIP5-AS1 (an inferred tumor suppressor) andTUG1 and WT1-AS (inferred onco-lncRNAs) dysre-gulated cancer genes and altered proliferation ofbreast and gynecologic cancer cells. Our analysis in-dicates that, although most lncRNAs are dysregu-lated in a tumor-specific manner, some, includingOIP5-AS1, TUG1, NEAT1, MEG3, and TSIX, synergis-tically dysregulate cancer pathways in multiple tumorcontexts

    Genomic, Pathway Network, and Immunologic Features Distinguishing Squamous Carcinomas

    Get PDF
    This integrated, multiplatform PanCancer Atlas study co-mapped and identified distinguishing molecular features of squamous cell carcinomas (SCCs) from five sites associated with smokin
    • …
    corecore