6,513 research outputs found

    The Correlation Between Perceptions of Safety and Perceived Stress Among Residents of the Somerset Neighborhood of Kensington, Philadelphia

    Get PDF
    Background: The Somerset neighborhood of Kensington, Philadelphia is affected by economic, environmental, and social issues that come with disinvestment. The average median income for Somerset is 26,015peryearwhichismuchlowerthanPhiladelphiascitywideincomeof26,015 per year which is much lower than Philadelphia’s city-wide income of 36, 957. This study evaluated the connection between perceptions of safety and perceived stress among residents of the Somerset neighborhood. Methods: This study was a secondary data analysis from a cross-sectional study in the Somerset neighborhood. The data included self-reported surveys from Somerset residents that were completed at their homes. The surveys were completed using an electronic (tablet) format which took approximately 20 to 30 minutes to complete. Trained members of the neighborhood collected the data from July to December 2017. We used SPSS to quantify relationships between perceptions of safety and perceived stress using Spearman’s Rank Order Correlation for each of our 12 perceptions of safety variables and stress. Our final model was created using a multivariable linear regression model. Results: We had 328 adults with an average age of 48 years old in our study sample. We found that most of the residents were female, 35.3% were Latino, predominantly single, and mainly employed full-time. Additionally, over half of the residents owned their home and 16 years was the average amount of time lived in the neighborhood. We found that the average score on the stress scale was a 5.18 (range 0-16). In our final model, we found 4 variables to be statistically significant (α= .10) age, years lived in the community, police should spend more time working with community members and groups to solve problems, and members of my community are interested in crime prevention activities. Discussion: Overall, the mean stress levels were lower than we expected. We found associations between demographics and perceptions of safety variables specifically, as age increased, stress decreased and as the years lived in the community increased, stress increased. Our results also indicated as police spent more time working with community members and as crime prevention activities increased in the community, stress decreased. The strongest predictor of stress was the variable: “police should spend more time working with community members and groups to solve problems.” Collaborations between police officers and community members have the potential to improve health and may also help residents feel safer and less stressed in the neighborhood

    The Association Between Opioid-Related Industry Payments and Opioid Prescribing at the Individual and Ecological Level in Pennsylvania

    Get PDF
    Objective: to understand how industry payments related to opioid products are associated with opioid prescribing in Pennsylvania. Methods: we merged the Open Payments data, Medicare Part D public use file, and Dartmouth Hospital Atlas of Health Care Hospital Service Areas from 2015 to analyze relationships between opioid related payments and opioid prescribing. We used a binomial regression model to investigate individual-level trends and a log-linear model to investigate Hospital Service Area-level trends. We mapped the distribution of opioid-related payments in Pennsylvania using GIS software. Results: One additional payment to a physician was associated with 4.2% higher opioid-prescribing rate (OR = 1.0418, 95% CI 1.0416-1.0420, Chi-Square(1) = 122678, p Conclusions: We found a positive association between opioid-related payments to physicians and opioid prescribing. Policy makers and administrators should consider revising rules related to pharmaceutical company marketing tactics and promote judicious opioid prescribing

    Understanding Differences in Medical Versus Surgical Patients Alerted by the Modified Early Warning Score (MEWS) at Jefferson Hospital

    Get PDF
    An Early Warning Score (EWS) is a risk-management tool to identify patients experiencing clinical deterioration early, therefore allowing timely treatment to occur. Although EWS scores are recommended for all in-patients, more data is available for patients under general medical services compared to surgical services. This study aims to understand differences between medical versus surgical in-patients who receive a red alert from the Modified Early Warning Score (MEWS) at Jefferson hospital. Patients who received a red MEWS alert during admission and discharged between June 2017 to March 2018 (N=812) were categorized as medical or surgical patients. Patient characteristics were compared using an independent samples t-test (age, alert count) or chi-square test (sex, race, admission source, insurance). Patient outcomes were compared using a binary logistic regression (in-hospital mortality, RRT, sepsis diagnosis, ICU transfer, intubation, discharge to hospice) or a Cox regression model (length of stay), controlling for age, sex, and race. Compared to medical patients, surgical patients were younger by 2.7 years (p=0.026) and more likely to have a Commercial and/or Medicare category of insurance (OR=1.568, p=0.005). Surgical patients were more likely to have ICU transfer (OR=1.487, p=0.013) and intubation post-alert (OR=2.470, p=0.006), while less likely to be discharged early (HR=0.675,

    A broad distribution of the alternative oxidase in microsporidian parasites

    Get PDF
    Microsporidia are a group of obligate intracellular parasitic eukaryotes that were considered to be amitochondriate until the recent discovery of highly reduced mitochondrial organelles called mitosomes. Analysis of the complete genome of Encephalitozoon cuniculi revealed a highly reduced set of proteins in the organelle, mostly related to the assembly of ironsulphur clusters. Oxidative phosphorylation and the Krebs cycle proteins were absent, in keeping with the notion that the microsporidia and their mitosomes are anaerobic, as is the case for other mitosome bearing eukaryotes, such as Giardia. Here we provide evidence opening the possibility that mitosomes in a number of microsporidian lineages are not completely anaerobic. Specifically, we have identified and characterized a gene encoding the alternative oxidase (AOX), a typically mitochondrial terminal oxidase in eukaryotes, in the genomes of several distantly related microsporidian species, even though this gene is absent from the complete genome of E. cuniculi. In order to confirm that these genes encode functional proteins, AOX genes from both A. locustae and T. hominis were over-expressed in E. coli and AOX activity measured spectrophotometrically using ubiquinol-1 (UQ-1) as substrate. Both A. locustae and T. hominis AOX proteins reduced UQ-1 in a cyanide and antimycin-resistant manner that was sensitive to ascofuranone, a potent inhibitor of the trypanosomal AOX. The physiological role of AOX microsporidia may be to reoxidise reducing equivalents produced by glycolysis, in a manner comparable to that observed in trypanosome

    Health for life : annual report of activities for the period January-December 2013

    Get PDF
    In Seychelles, cardiovascular diseases (CVD), notably stroke, ischemic heart disease and hypertensive heart disease has become the largest contributor of deaths (40%) in the entire population. CVD also results in a large burden of disability and also has subsequent social and economic impact. The Unit for Prevention and Control of Cardiovascular Diseases (UPCCD) provides leadership, expertise and capacity at national level for the surveillance, prevention and control of cardiovascular diseases through education, programs and input into policy

    Twinning superlattices in indium phosphide nanowires

    Full text link
    Here, we show that we control the crystal structure of indium phosphide (InP) nanowires by impurity dopants. We have found that zinc decreases the activation barrier for 2D nucleation growth of zinc-blende InP and therefore promotes the InP nanowires to crystallise in the zinc blende, instead of the commonly found wurtzite crystal structure. More importantly, we demonstrate that we can, by controlling the crystal structure, induce twinning superlattices with long-range order in InP nanowires. We can tune the spacing of the superlattices by the wire diameter and the zinc concentration and present a model based on the cross-sectional shape of the zinc-blende InP nanowires to quantitatively explain the formation of the periodic twinning.Comment: 18 pages, 4 figure

    VEGF Trap In Combination With Radiotherapy Improves Tumor Control In U87 Glioblastoma

    Get PDF
    Purpose To determine the effect of vascular endothelial growth factor VEGF Trap (Regeneron Pharmaceuticals, Tarrytown, NY), a humanized soluble vascular endothelial growth factor (VEGF) receptor protein, and radiation (RT) on tumor growth in U87 glioblastoma xenografts in nude mice. Methods and Materials U87 cell suspensions were implanted subcutaneously into hind limbs of nude mice. VEGF Trap (2.5–25 mg/kg) was administered every 3 days for 3 weeks alone or in combination with a single dose of 10 Gy or fractionated RT (3 x 5 Gy). In addition, three scheduling protocols for VEGF Trap plus fractionated RT were examined. Results Improved tumor control was seen when RT (either single dose or fractionated doses) was combined with the lowest dose of VEGF Trap (2.5 mg/kg). Scheduling did not significantly affect the efficacy of combined therapy. Although high-dose VEGF Trap (10 mg/kg or 25 mg/kg) significantly reduced tumor growth over that of RT alone, there was no additional benefit to combining high-dose VEGF Trap with RT. Conclusions Vascular endothelial growth factor Trap plus radiation is clearly better than radiation alone in a U87 subcutaneous xenograft model. Although high doses of VEGF Trap alone are highly efficacious, it is unclear whether such high doses can be used clinically without incurring normal tissue toxicities. Thus, information on lower doses of VEGF Trap and ionizing radiation is of clinical relevance. Int. J. Radiation Oncol. Biol. Physics, Volume 67, Issue 5, pages 1526-1537, 2007

    First Fruits of the Spitzer Space Telescope: Galactic and Solar System Studies

    Get PDF
    This article provides a brief overview of the Spitzer Space Telescope and discusses its initial scientific results on galactic and solar system science.Comment: Review article to appear in slightly different format in Vol.44 of Annual Reviews of Astronomy and Astrophysics, 200

    How does a cadaver model work for testing ultrasound diagnostic capability for rheumatic-like tendon damage?

    Get PDF
    To establish whether a cadaver model can serve as an effective surrogate for the detection of tendon damage characteristic of rheumatoid arthritis (RA). In addition, we evaluated intraobserver and interobserver agreement in the grading of RA-like tendon tears shown by US, as well as the concordance between the US findings and the surgically induced lesions in the cadaver model. RA-like tendon damage was surgically induced in the tibialis anterior tendon (TAT) and tibialis posterior tendon (TPT) of ten ankle/foot fresh-frozen cadaveric specimens. Of the 20 tendons examined, six were randomly assigned a surgically induced partial tear; six a complete tear; and eight left undamaged. Three rheumatologists, experts in musculoskeletal US, assessed from 1 to 5 the quality of US imaging of the cadaveric models on a Likert scale. Tendons were then categorized as having either no damage, (0); partial tear, (1); or complete tear (2). All 20 tendons were blindly and independently evaluated twice, over two rounds, by each of the three observers. Overall, technical performance was satisfactory for all items in the two rounds (all values over 2.9 in a Likert scale 1-5). Intraobserver and interobserver agreement for US grading of tendon damage was good (mean κ values 0.62 and 0.71, respectively), with greater reliability found in the TAT than the TPT. Concordance between US findings and experimental tendon lesions was acceptable (70-100 %), again greater for the TAT than for the TPT. A cadaver model with surgically created tendon damage can be useful in evaluating US metric properties of RA tendon lesions
    corecore