240 research outputs found

    People With Cancer Experience Worse Psychosocial and Financial Consequences of COVID-19 Compared With Other Chronic Disease Populations: Findings From the International COVID-19 Awareness and Response Evaluation Survey Study

    Get PDF
    Purpose The COVID-19 pandemic is likely to have profound psychosocial impacts across the globe. In this analysis of the International COVID-19 Awareness and Response Evaluation (iCARE) survey study, we comparatively investigated the psychosocial effects of COVID-19 on individuals with cancer and people with other chronic illness. Methods iCARE study respondents were divided into two groups on the basis of self-reported health status: (1) active/current cancer (with or without any other chronic condition: heart disease, lung disease, hypertension, diabetes, severe obesity, immunity disease, and depressive or anxiety disorder); and (2) other chronic condition, but not cancer. Linear regressions were conducted to evaluate the associations between health status and outcomes. Results Worldwide, 18,154 iCARE study respondents (mean age, 50.8 years) from 175 countries were included in the analysis. Among them, 3.8% (n = 677) identified as having active/current cancer and 96.2% (n = 17,477) identified as having other chronic condition. Multivariate analyses showed significant associations between having cancer and declined mental (β = .364; P < .0001) and physical (β = .317; P < .0001) health since the start of the COVID-19 pandemic, relative to those with other chronic illness. Moreover, individuals with cancer demonstrated a higher likelihood of reporting maladaptive coping mechanisms such as increased alcohol use (β = .457; P < .0001) and financial hardships such as not paying rent/mortgage (β = .476; P < .0001), compared with people with other chronic illness. Conclusion Individuals with cancer worldwide tended to have worse psychosocial and financial challenges during the COVID-19 pandemic, compared with other chronic disease populations. Clinicians need to be aware of the importance of attending to the specific mental health needs of individuals with cancer during and after COVID-19–related restrictions

    The Virtues of Nonsimulation Games

    Full text link

    Novel Phases and Finite-Size Scaling in Two-Species Asymmetric Diffusive Processes

    Full text link
    We study a stochastic lattice gas of particles undergoing asymmetric diffusion in two dimensions. Transitions between a low-density uniform phase and high-density non-uniform phases characterized by localized or extended structure are found. We develop a mean-field theory which relates coarse-grained parameters to microscopic ones. Detailed predictions for finite-size (LL) scaling and density profiles agree excellently with simulations. Unusual large-LL behavior of the transition point parallel to that of self-organized sandpile models is found.Comment: 7 pages, plus 6 figures uuencoded, compressed and appended after source code, LATeX, to be published as a Phys. Rev. Let

    Modern theories of low-energy astrophysical reactions

    Get PDF
    We summarize recent ab initio studies of low-energy electroweak reactions of astrophysical interest, relevant for both big bang nucleosynthesis and solar neutrino production. The calculational methods include direct integration for np radiative and pp weak capture, correlated hyperspherical harmonics for reactions of A=3,4 nuclei, and variational Monte Carlo for A=6,7 nuclei. Realistic nucleon-nucleon and three-nucleon interactions and consistent current operators are used as input.Comment: 29 pages, 4 figure

    Threshold Electrodisintegration of ^3He

    Get PDF
    Cross sections were measured for the near-threshold electrodisintegration of ^3He at momentum transfer values of q=2.4, 4.4, and 4.7 fm^{-1}. From these and prior measurements the transverse and longitudinal response functions R_T and R_L were deduced. Comparisons are made against previously published and new non-relativistic A=3 calculations using the best available NN potentials. In general, for q<2 fm^{-1} these calculations accurately predict the threshold electrodisintegration of ^3He. Agreement at increasing q demands consideration of two-body terms, but discrepancies still appear at the highest momentum transfers probed, perhaps due to the neglect of relativistic dynamics, or to the underestimation of high-momentum wave-function components.Comment: 9 pages, 7 figures, 1 table, REVTEX4, submitted to Physical Review

    Resonances in the three-neutron system

    Full text link
    A study of 3-body resonances has been performed in the framework of configuration space Faddeev equations. The importance of keeping a sufficient number of terms in the asymptotic expansion of the resonance wave function is pointed out. We investigated three neutrons interacting in selected force components taken from realistic nn forces.Comment: 38 pages, 11 tables, 4 figure
    • …
    corecore