161 research outputs found

    Systematic Review of Water-Related Diseases in the Florida Environment

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    Honorable Mention Winner Background: Florida’s environments are suitable reservoirs for many disease-causing microorganisms. Pathogens and toxins in Florida waterways hold the potential to infect vectors, animal and human hosts. Many conditions are reportable to the Florida Department of Health. Our objective in this review was to determine which waterborne, water-based, and water-related pathogenic organisms have been documented in Florida’s environments over the last twenty years. Methods: Nineteen databases were searched using keywords relating to the waterborne, water-based toxins, and water-related vector-borne diseases. Peer-reviewed journal articles were included if written in English, published between January 1, 1999 and December 31, 2019, and contained original data on a water-related pathogen of interest within a Florida’s environmental reservoir collected during the same time period. Results: This search resulted in 5,419 articles, after removing duplicates. An initial screening of titles and abstracts reduced the number of articles for full-text review to 474. From these, 67 articles were accepted in the analysis. The common waterborne organism found was Escherichia coli (n= 27) followed by Salmonella, Cryptosporidium (n= 8), and Giardia (n= 6). Water-related vector-borne diseases included West Nile Virus, (n= 6), Eastern Equine Encephalitis (n= 3), St. Louis Encephalitis (n= 1), Zika Virus (n= 1), and Dengue Virus (n= 1). Water-based toxins found included Neurotoxic Shellfish Poisoning (NSP) toxin Karenia brevis (n= 10), Saxitoxin or Paralytic Shellfish Poisoning (PSP) toxins (n= 5), and Ciguatera Fish Poisoning toxin Gambierdiscus caribaeus, (n= 1). Pathogens were found in water, air, soil/sediment, sand, food, aquatic vegetation, dry swabs, and mosquito pools. Discussion/conclusion: Many of the waterborne, water-related vector-borne, and water-based toxins and disease of public health and veterinary importance are present in Florida environments. A One Health approach will be imperative to maintaining healthy waterways and shared environments throughout Florida to protect the health of humans, animals, and our ecosystems. Audio Playe

    Risk Factors for Emergency Medical Care or Hospitalization Due to Heat-Related Illness or Injury: A Systematic Review

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    Background: Temperatures globally have been predicted to increase due to changes in the climate. As the earth gets warmer, it is expected that heat-related illness will also increase worldwide. An effective and appropriate public health response will be critical. Purpose: The aim of this review was to identify risk factors associated with heat-related illness and injury to provide target areas for future interventions. Methods: A review of existing literature was analyzed for risk factors that may increase the likelihood of being admitted to an emergency department for a heat related illness or injury. Results: Of the included articles in this analysis (n=85), the common risk factors for emergency care or hospitalization from heat exposure were patient’s age (n=42), gender or sex (n=33), underlying health conditions or comorbidities (n=12) and time of year (n=24). Discussion: Community education and public health messages for prevention with focus on risk factors and common symptoms are important to decrease the rates of emergency care and hospital admissions. Further research is needed to determine mitigation strategies to decrease heat-related illness or injury as well as investments in early warning systems to protect vulnerable populations

    Big events, little change: Extreme climatic events have no region-wide effect on Great Barrier Reef governance

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    Extreme climatic events trigger changes in ecosystems with potential negative impacts for people. These events may provide an opportunity for environmental managers and decision-makers to improve the governance of social-ecological systems, however there is conflicting evidence regarding whether these actors are indeed able to change governance after extreme climatic events. In addition, the majority of research to date has focused on changes in specific policies or organizations after crises. A broader investigation of governance actors’ activities is needed to more fully understand whether or not crises trigger change. Here we demonstrate the use of a social network analysis of management and decision-making forums (e.g. meetings, partnerships) to reveal the effects of an extreme climatic event on governance of the Great Barrier Reef over an eight-year period. To assess potential shifts in action, we examine the topics of forums and the relative participation and influence of diverse governance actors before, during, and after two back-to-back mass coral bleaching events in 2016 and 2017. Our analysis reveals that there is little change in the topics that receive attention, and in the relative participation and influence of different actor groups in the region. Our research demonstrates that network analysis of forums is useful for analyzing whether or not actors’ activities and priorities evolve over time. Our results provide empirical evidence that governance actors struggle to leverage extreme climate events as windows of opportunity and further research is needed to identify alternative opportunities to improve governance

    An inventory of supraglacial lakes and channels across the West Antarctic Ice Sheet

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    Quantifying the extent and distribution of supraglacial hydrology, i.e. lakes and streams, is important for understanding the mass balance of the Antarctic ice sheet and its consequent contribution to global sea-level rise. The existence of meltwater on the ice surface has the potential to affect ice shelf stability and grounded ice flow through hydrofracturing and the associated delivery of meltwater to the bed. In this study, we systematically map all observable supraglacial lakes and streams in West Antarctica by applying a semi-automated Dual-NDWI (normalised difference water index) approach to >2000 images acquired by the Sentinel-2 and Landsat-8 satellites during January 2017. We use a K-means clustering method to partition water into lakes and streams, which is important for understanding the dynamics and inter-connectivity of the hydrological system. When compared to a manually delineated reference dataset on three Antarctic test sites, our approach achieves average values for sensitivity (85.3 % and 77.6 %), specificity (99.1 % and 99.7 %) and accuracy (98.7 % and 98.3 %) for Sentinel-2 and Landsat-8 acquisitions, respectively. We identified 10 478 supraglacial features (10 223 lakes and 255 channels) on the West Antarctic Ice Sheet (WAIS) and Antarctic Peninsula (AP), with a combined area of 119.4 km2 (114.7 km2 lakes, 4.7 km2 channels). We found 27.3 % of feature area on grounded ice and 54.9 % on floating ice shelves. In total, 17.8 % of feature area crossed the grounding line. A recent expansion in satellite data provision made new continental-scale inventories such as these, the first produced for WAIS and AP, possible. The inventories provide a baseline for future studies and a benchmark to monitor the development of Antarctica's surface hydrology in a warming world and thus enhance our capability to predict the collapse of ice shelves in the future. The dataset is available at https://doi.org/10.5281/zenodo.5642755 (Corr et al., 2021)

    Closing the compliance gap in marine protected areas with human behavioural sciences

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    Advocates, practitioners and policy-makers continue to use and advocate for marine protected areas (MPAs) to meet global ocean protection targets. Yet many of the worlds MPAs, and especially no-take MPAs, are plagued by poaching and ineffective governance. Using a global dataset on coral reefs as an example, we quantify the potential ecological gains of governing MPAs to increase compliance, which we call the ‘compliance gap’. Using ecological simulations based on model posteriors of joint Bayesian hierarchical models, we demonstrate how increased compliance in no-take MPAs could nearly double target fish biomass (91% increases in median fish biomass), and result in a 292% higher likelihood of encountering top predators. Achieving these gains and closing the compliance gap necessitates a substantial shift in approach and practice to go beyond optimizing enforcement, and towards governing for compliance. This will require engaging and integrating a broad suite of actors, principles, and practices across three key domains: (i)) harnessing social influence, (ii) integrating equity principles, and (iii) aligning incentives through market-based instruments. Empowering and shaping communication between actor groups (e.g., between fishers, practitioners, and policy-makers) using theoretically underpinned approaches from the behavioural sciences is one of the most essential, but often underserved aspects of governing MPAs. We therefore close by highlighting how this cross-cutting tool could be further integrated in governance to bolster high levels of compliance in MPAs

    Community Benefit Agreements: A Report for the City of East Cleveland

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    Dr. Beth Nagy, Assistant Lecturer of Urban Planning Practice at the Levin College, worked with her UST 489 Senior Seminar class to produce a report for the City of East Cleveland on community benefit agreements (CBAs). Students examined CBAs across major cities throughout the United States to provide the City of East Cleveland with case studies on the different ways CBAs are utilized in other communities, while exploring the successes and limitations such efforts have encountered. The final report was presented to East Cleveland Mayor Brandon L. King in February 2020

    Standards of lithium monitoring in mental health trusts in the UK

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    <p>Abstract</p> <p>Background</p> <p>Lithium is a commonly prescribed drug with a narrow therapeutic index, and recognised adverse effects on the kidneys and thyroid. Clinical guidelines for the management of bipolar affective disorder published by The National Institute for Health and Clinical Excellence (NICE) recommend checks of renal and thyroid function before lithium is prescribed. They further recommend that all patients who are prescribed lithium should have their renal and thyroid function checked every six months, and their serum lithium checked every three months. Adherence to these recommendations has not been subject to national UK audit.</p> <p>Methods</p> <p>The Prescribing Observatory for Mental Health (POMH-UK) invited all National Health Service Mental Health Trusts in the UK to participate in a benchmarking audit of lithium monitoring against recommended standards. Data were collected retrospectively from clinical records and submitted electronically.</p> <p>Results</p> <p>436 clinical teams from 38 Trusts submitted data for 3,373 patients. In patients recently starting lithium, there was a documented baseline measure of renal or thyroid function in 84% and 82% respectively. For patients prescribed lithium for a year or more, the NICE standards for monitoring lithium serum levels, and renal and thyroid function were met in 30%, 55% and 50% of cases respectively.</p> <p>Conclusions</p> <p>The quality of lithium monitoring in patients who are in contact with mental health services falls short of recognised standards and targets. Findings from this audit, along with reports of harm received by the National Patient Safety Agency, prompted a Patient Safety Alert mandating primary care, mental health and acute Trusts, and laboratory staff to work together to ensure systems are in place to support recommended lithium monitoring by December 2010.</p

    Science opportunities with solar sailing smallsats

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    Recently, we witnessed how the synergy of small satellite technology and solar sailing propulsion enables new missions. Together, small satellites with lightweight instruments and solar sails offer affordable access to deep regions of the solar system, also making it possible to realize hard-to-reach trajectories that are not constrained to the ecliptic plane. Combining these two technologies can drastically reduce travel times within the solar system, while delivering robust science. With solar sailing propulsion capable of reaching the velocities of ~5-10 AU/yr, missions using a rideshare launch may reach the Jovian system in two years, Saturn in three. The same technologies could allow reaching solar polar orbits in less than two years. Fast, cost-effective, and maneuverable sailcraft that may travel outside the ecliptic plane open new opportunities for affordable solar system exploration, with great promise for heliophysics, planetary science, and astrophysics. Such missions could be modularized to reach different destinations with different sets of instruments. Benefiting from this progress, we present the "Sundiver" concept, offering novel possibilities for the science community. We discuss some of the key technologies, the current design of the Sundiver sailcraft vehicle and innovative instruments, along with unique science opportunities that these technologies enable, especially as this exploration paradigm evolves. We formulate policy recommendations to allow national space agencies, industry, and other stakeholders to establish a strong scientific, programmatic, and commercial focus, enrich and deepen the space enterprise and broaden its advocacy base by including the Sundiver paradigm as a part of broader space exploration efforts.Comment: 34 pages, 12 figures, 2 table
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