42 research outputs found
A Large Catalog of Homogeneous Ultra-Violet/Optical GRB Afterglows: Temporal and Spectral Evolution
We present the second Swift Ultra-Violet/Optical Telescope (UVOT) gamma-ray burst (GRB) afterglow catalog, greatly expanding on the first Swift UVOT GRB afterglow catalog. The second catalog is constructed from a database containing over 120,000 independent UVOT observations of 538 GRBs first detected by Swift, the High Energy Transient Explorer 2 (HETE2), the INTErnational Gamma-Ray Astrophysics Laboratory (INTEGRAL), the Interplanetary Network (IPN), Fermi, and Astro-rivelatore Gamma a Immagini Leggero (AGILE). The catalog covers GRBs discovered from 2005 Jan 17 to 2010 Dec 25. Using photometric information in three UV bands, three optical bands, and a `white' or open filter, the data are optimally co-added to maximize the number of detections and normalized to one band to provide a detailed light curve. The catalog provides positional, temporal, and photometric information for each burst, as well as Swift Burst Alert Telescope (BAT) and X-Ray Telescope (XRT) GRB parameters. Temporal slopes are provided for each UVOT filter. The temporal slope per filter of almost half the GRBs are fit with a single power-law, but one to three breaks are required in the remaining bursts. Morphological comparisons with the X-ray reveal that approximately 75% of the UVOT light curves are similar to one of the four morphologies identified by Evans et al. (2009). The remaining approximately 25% have a newly identified morphology. For many bursts, redshift and extinction corrected UV/optical spectral slopes are also provided at 2000, 20,000, and 200,000 seconds
p21-activated kinase signaling in breast cancer
The p21-activated kinases signal through a number of cellular pathways fundamental to growth, differentiation and apoptosis. A wealth of information has accumulated at an impressive pace in the recent past, both with regard to previously identified targets for p21-activated kinases that regulate the actin cytoskeleton and cellular stress pathways and with regard to newly identified targets and their role in cancer. Emerging data also provide new clues towards a previously unappreciated link between these various cellular processes. The present review attempts to provide a quick tutorial to the reader about the evolving significance of p21-activated kinases and small GTPases in breast cancer, using information from mouse models, tissue culture studies, and human materials
Immunological mechanism of action and clinical profile of disease-modifying treatments in multiple sclerosis.
Multiple sclerosis (MS) is a life-long, potentially debilitating disease of the central nervous system (CNS). MS is considered to be an immune-mediated disease, and the presence of autoreactive peripheral lymphocytes in CNS compartments is believed to be critical in the process of demyelination and tissue damage in MS. Although MS is not currently a curable disease, several disease-modifying therapies (DMTs) are now available, or are in development. These DMTs are all thought to primarily suppress autoimmune activity within the CNS. Each therapy has its own mechanism of action (MoA) and, as a consequence, each has a different efficacy and safety profile. Neurologists can now select therapies on a more individual, patient-tailored basis, with the aim of maximizing potential for long-term efficacy without interruptions in treatment. The MoA and clinical profile of MS therapies are important considerations when making that choice or when switching therapies due to suboptimal disease response. This article therefore reviews the known and putative immunological MoAs alongside a summary of the clinical profile of therapies approved for relapsing forms of MS, and those in late-stage development, based on published data from pivotal randomized, controlled trials
Relations between brain volumes, neuropsychological assessment and parental questionnaire in prematurely born children
Inherited determinants of Crohn's disease and ulcerative colitis phenotypes: a genetic association study
Crohn's disease and ulcerative colitis are the two major forms of inflammatory bowel disease; treatment strategies have historically been determined by this binary categorisation. Genetic studies have identified 163 susceptibility loci for inflammatory bowel disease, mostly shared between Crohn's disease and ulcerative colitis. We undertook the largest genotype association study, to date, in widely used clinical subphenotypes of inflammatory bowel disease with the goal of further understanding the biological relations between diseases
Immunological Mechanism of Action and Clinical Profile of Disease-Modifying Treatments in Multiple Sclerosis
Interface Between Motivational Interviewing and Burnout
Paul J Hershberger,1 Stacy R Flowers,1 Sharlo L Bayless,2 Katharine Conway,1 Timothy N Crawford1,3 1Department of Family Medicine, Wright State University Boonshoft School of Medicine, Dayton, OH, USA; 2Wright State University Boonshoft School of Medicine, Dayton, OH, USA; 3Department of Population and Public Health Sciences, Wright State University Boonshoft School of Medicine, Dayton, OH, USACorrespondence: Paul J Hershberger, Department of Family Medicine, Wright State University Boonshoft School of Medicine, 725 University Blvd, Dayton, OH, 45435, USA, Tel +1 937-245-7223, Fax +1 937-245-7931, Email [email protected]: The contemporary challenges of improving patient engagement in chronic disease management and addressing the growing problem of physician burnout are commonly viewed as separate issues. However, there is extensive evidence that person-centered approaches to patient engagement, such as motivational interviewing (MI), are associated both with better outcomes for patients and improved well-being for clinicians.Methods: We conducted an exploratory survey study to ascertain whether resident physicians who perceive that they embrace and utilize the MI approach also report less burnout. A total of 318 residents in several specialties were invited via email to complete a 10-question survey about patient engagement and the experience of burnout. Frequencies and percentages were calculated for all categorical/ordinal variables to describe survey participants and question responses. Correlation coefficients were obtained to assess relationships between all burnout and engagement questions.Results: A total of 79 residents completed the survey (response rate of 24.8%). There was broad agreement about the importance of patient engagement and the use of the MI approach, and approximately 60% of residents indicated that burnout was a problem. Two items related to residents’ perceived use of MI were correlated with feeling a sense of personal accomplishment, one of the protective factors against burnout.Conclusion: Consistent with other studies indicating that person-centered approaches are associated both with better patient outcomes and provider wellbeing, our data suggest that residents’ self-reported use of the MI approach in patient care may be related to less burnout. It appears that training in the MI approach in graduate medical education may be simultaneously good for patient outcomes and good for resident well-being.Plain Language Summary: Teaching resident physicians how to take care of their own health, and how to help patients take more responsibility for their health, are typically viewed as two separate challenges. However, studies have shown that patient-centered approaches have benefits both for patient health and clinician health. In our survey of resident physicians, we found that those who say they use motivational interviewing, a patient-centered approach, also report less burnout. This means that teaching resident physicians an effective way to interact with patients is also good for the trainees’ health.Keywords: patient engagement, physician burnout, motivational interviewing, graduate medical educatio