While all groups are affected by the COVID-19 pandemic, the elderly, underrepresented minorities, and those with underlying medical conditions are at the greatest risk. The high rate of consumption ...of diets high in saturated fats, sugars, and refined carbohydrates (collectively called Western diet, WD) worldwide, contribute to the prevalence of obesity and type 2 diabetes, and could place these populations at an increased risk for severe COVID-19 pathology and mortality. WD consumption activates the innate immune system and impairs adaptive immunity, leading to chronic inflammation and impaired host defense against viruses. Furthermore, peripheral inflammation caused by COVID-19 may have long-term consequences in those that recover, leading to chronic medical conditions such as dementia and neurodegenerative disease, likely through neuroinflammatory mechanisms that can be compounded by an unhealthy diet. Thus, now more than ever, wider access to healthy foods should be a top priority and individuals should be mindful of healthy eating habits to reduce susceptibility to and long-term complications from COVID-19.
The flux-density scale of Perley & Butler is extended downward to ∼50 MHz by utilizing recent observations with the Karl G. Jansky Very Large Array (VLA) of 20 sources between 220 MHz and 48.1 GHz, ...and legacy VLA observations at 73.8 MHz. The derived spectral flux densities are placed on an absolute scale by utilizing the Baars et al. values for Cygnus A (3C405) for frequencies below 2 GHz, and the Mars-based polynomials for 3C286, 3C295, and 3C196 from Perley & Butler above 2 GHz. Polynomial expressions are presented for all 20 sources, with accuracy limited by the primary standards to 3%-5% over the entire frequency range. Corrections to the scales proposed by Perley & Butler, and by Scaife & Heald are given.
Earth's climate is warming as a result of anthropogenic emissions of greenhouse gases, particularly carbon dioxide (CO(2)) from fossil fuel combustion. Anthropogenic emissions of non-CO(2) greenhouse ...gases, such as methane, nitrous oxide and ozone-depleting substances (largely from sources other than fossil fuels), also contribute significantly to warming. Some non-CO(2) greenhouse gases have much shorter lifetimes than CO(2), so reducing their emissions offers an additional opportunity to lessen future climate change. Although it is clear that sustainably reducing the warming influence of greenhouse gases will be possible only with substantial cuts in emissions of CO(2), reducing non-CO(2) greenhouse gas emissions would be a relatively quick way of contributing to this goal.
Abstract
If a material with an odd number of electrons per unit-cell is insulating, Mott localisation may be invoked as an explanation. This is widely accepted for the layered compound 1
T
-TaS
2
, ...which has a low-temperature insulating phase comprising charge order clusters with 13 unpaired orbitals each. But if the stacking of layers doubles the unit-cell to include an even number of orbitals, the nature of the insulating state is ambiguous. Here, scanning tunnelling microscopy reveals two distinct terminations of the charge order in 1
T
-TaS
2
, the sign of such a double-layer stacking pattern. However, spectroscopy at both terminations allows us to disentangle unit-cell doubling effects and determine that Mott localisation alone can drive gap formation. We also observe the collapse of Mottness at an extrinsically re-stacked termination, demonstrating that the microscopic mechanism of insulator-metal transitions lies in degrees of freedom of inter-layer stacking.
Predicting the oceanic dispersal of planktonic larvae that connect scattered marine animal populations is difficult, yet crucial for management of species whose movements transcend international ...boundaries. Using multi-scale biophysical modeling techniques coupled with empirical estimates of larval behavior and gamete production, we predict and empirically verify spatio-temporal patterns of larval supply and describe the Caribbean-wide pattern of larval connectivity for the Caribbean spiny lobster (Panulirus argus), an iconic coral reef species whose commercial value approaches $1 billion USD annually. Our results provide long sought information needed for international cooperation in the management of marine resources by identifying lobster larval connectivity and dispersal pathways throughout the Caribbean. Moreover, we outline how large-scale fishery management could explicitly recognize metapopulation structure by considering larval transport dynamics and pelagic larval sanctuaries.
Summary Background Cancer survival is a key measure of the effectiveness of health-care systems. Persistent regional and international differences in survival represent many avoidable deaths. ...Differences in survival have prompted or guided cancer control strategies. This is the first study in a programme to investigate international survival disparities, with the aim of informing health policy to raise standards and reduce inequalities in survival. Methods Data from population-based cancer registries in 12 jurisdictions in six countries were provided for 2·4 million adults diagnosed with primary colorectal, lung, breast (women), or ovarian cancer during 1995–2007, with follow-up to Dec 31, 2007. Data quality control and analyses were done centrally with a common protocol, overseen by external experts. We estimated 1-year and 5-year relative survival, constructing 252 complete life tables to control for background mortality by age, sex, and calendar year. We report age-specific and age-standardised relative survival at 1 and 5 years, and 5-year survival conditional on survival to the first anniversary of diagnosis. We also examined incidence and mortality trends during 1985–2005. Findings Relative survival improved during 1995–2007 for all four cancers in all jurisdictions. Survival was persistently higher in Australia, Canada, and Sweden, intermediate in Norway, and lower in Denmark, England, Northern Ireland, and Wales, particularly in the first year after diagnosis and for patients aged 65 years and older. International differences narrowed at all ages for breast cancer, from about 9% to 5% at 1 year and from about 14% to 8% at 5 years, but less or not at all for the other cancers. For colorectal cancer, the international range narrowed only for patients aged 65 years and older, by 2–6% at 1 year and by 2–3% at 5 years. Interpretation Up-to-date survival trends show increases but persistent differences between countries. Trends in cancer incidence and mortality are broadly consistent with these trends in survival. Data quality and changes in classification are not likely explanations. The patterns are consistent with later diagnosis or differences in treatment, particularly in Denmark and the UK, and in patients aged 65 years and older. Funding Department of Health, England; and Cancer Research UK.
Two luminescent probes Eu.L¹⁻²⁺ are reported for the rapid detection of fluoride in water. Probes Eu.L¹⁻²⁺ exhibit exceptional enhancements in Eu emission in the presence of fluoride, permitting its ...selective determination within the environmentally relevant concentration range (20-210 μM).
•Burnout persists as concerning problem for more than half of nurses.•Burnout contributes to nursing workforce turnover, however not internal transfers.•Working day (vs. night) shift and increased ...death exposure increase burnout.•Hospitals must measure burnout and wellbeing to understand and address its impact.
The National Academies of Medicine describes clinician burnout as a serious threat to organizational health, including employee turnover.
To determine the relationship between resilience, burnout, and organizational and position turnover.
We surveyed direct care nurses in three hospitals 1 year apart between 2018 and 2019; 1,688 nurses completed 3,135 surveys included in analysis.
Fifty-four percent of nurses in our sample suffer from moderate burnout, with emotional exhaustion scores increasing by 10% and cynicism scores increasing 19% after 1 year. The impact of burnout on organizational turnover was significant, with a 12% increase in a nurse leaving for each unit increase on the emotional exhaustion scale, though it was not a factor in position turnover.
These findings contribute to the growing body of evidence of nurse burnout and support policies and programs for annual measurement of burnout, increased employee wellbeing support, and improved work environments.
This book seeks to interrogate how contemporary policy issues become ‘securitized’ and, furthermore, what the implications of this process are. A generation after the introduction of the concept of ...securitization to the security studies field, this book engages with how securitization and desecuritization ‘works’ within and across a wide range of security domains including terrorism and counter-terrorism, climate change, sexual and gender-based violence, inter-state and intra-state conflict, identity, and memory in various geographic and social contexts. Blending theory and application, the contributors to this volume – drawn from different disciplinary, ontological, and geographic ‘spaces’ – orient their investigations around three common analytical objectives: revealing deficiencies in and through application(s) of securitization; considering securitization through speech-acts and discourse as well as other mechanisms; and exposing latent orthodoxies embedded in securitization research. The volume demonstrates the dynamic and elastic quality of securitization and desecuritization as concepts that bear explanatory fruit when applied across a wide range of security issues, actors, and audiences. It also reveals the deficiencies in restricting securitization research to an overly narrow set of issues, actors, and mechanisms.
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