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#CoronaVirus and public health: the role of social media in sharing health information
No full textPurpose: The purpose of this study is to examine how factual information and misinformation are being shared on Twitter by identifying types of social media users who initiate the information diffusion process. Design/methodology/approach: This study used a mixed methodology approach to analyze tweets with COVID-19-related hashtags. First, a social network analysis was conducted to identify social media users who initiate the information diffusion process, followed by a quantitative content analysis of tweets by users with more than 5K retweets to identify what COVID-19 claims, factual information, misinformation and disinformation was shared on Twitter. Findings: Results found very little misinformation and disinformation distributed widely. While health experts and journalists shared factual COVID-19-related information, they were not receiving optimum engagement. Tweets by citizens focusing on personal experience or opinions received more retweets and likes compared to any other sender type. Similarly, celebrities received more replies than any other sender type. Practical implications: This study helps medical experts and government agencies understand the type of COVID-19 content and communication being shared on social media for population health purposes. Originality/value: This study offers insight into how social media users engage with COVID-19-related information on Twitter and offers a typology of categories of information shared about the pandemic. Peer review: The peer review history for this article is available at: https://publons.com/publon/10.1108/OIR-03-2021-0143/
The Erasure of Sex: The Global Capture of Policies on Sex by Gender Identity Activists and the Effects on the Rights of Women and Girls
Get PDFThis article reviews the goals, history, and impact of the new gender identity politics. Based on the Yogyakarta Principles, these new ideas and policies will profoundly affect the rights of women and girls worldwide. The Principles are a document from an international meeting about sexual orientation and gender identity in 2006. In 2017, the document was updated to the Yogyakarta Principles Plus 10. The Principles recommend legal changes by states worldwide, resulting in the erasure of sex as a legal and cultural category. These principles have been widely used to lobby for legal changes resulting in profound structural changes that lead to undermining and eliminating protections for women and girls from sex-based discrimination and state obligations to achieve de facto sex equality. One of the most far-reaching recommendations is “States [national governments] must abolish all legal records of sex from all legal documents, including birth certificates and passports.” These recommendations are being implemented globally, although they have never been discussed or adopted by member states or any international organization, nor were any official women’s organizations consulted. This article was written by a collective of many feminist activists, researchers, and specialist service providers from Europe, Asia, North America, Latin America, and Africa who met every week at the Women’s Declaration International (WDI) sessions. They collected evidence and collaborated on creating this document from 2019 to 2022
Food Insecurity and Charitable Food Services: What do college students think about such public health interventions?
Get PDFHunger and food insecurity exist across millions of households in the United States. In 2020, an estimated 1 in 8 Americans were food insecure. The U.S. Department of Agriculture defines food insecurity as a lack of consistent access to enough food required for an individual to maintain an active, healthy life. Food insecurity is associated with an increased prevalence of chronic health conditions and directly affects a student’s ability to learn. Approximately 30% of college students obtaining an education in the United States are currently food insecure. Universities across the country are addressing student hunger via the establishment of on-campus food pantries. Such charitable food services provide meals to those in need, potentially allowing people to consume the appropriate amount of calories each day. Today, there are at least 700 food pantries on United States college campuses. Although the number of these intervention sites has increased, little is known about student awareness of existing food pantries and how often the available resources are utilized. The goal of this project was to discover whether or not students at the University of Rhode Island were familiar with their school’s food pantry, Rhody Outpost. This research paper analyzes responses from URI students who participated in a survey on food insecurity and charitable food services. 118 individuals completed the questionnaire, and only about 33% of them knew about their university’s food pantry. Moreover, none of the respondents said they have ever used the free services offered by Rhody Outpost and only nine had donated goods to the organization this past year. More investigation may be needed to conclude why college food pantries are so often overlooked, nonetheless this project provides the public with some information on student awareness of these charitable food services
Active Technological Similarity and Mutual Fund Performance
No full textWe examine whether superior understanding of technological innovation is a source of mutual fund managers\u27 ability to garner positive abnormal returns. Consistent with our hypothesis, the inter-quintile annual net Carhart alpha spread for mutual funds sorted on changes in the technological similarity (TS) of their portfolio holdings is 282 basis points. Moreover, because changes in TS are largely orthogonal to other predictors of mutual fund success (e.g., industry concentration, active share, fund R 2, and lag fund alpha), changes in TS can be combined with other measures to help identify the best performing funds
Neuropsychological Assessment of the Aging Physician: A Review & Commentary
No full textLate-career physicians (LCPs) are at risk for cognitive changes that may affect their ability to practice medicine. This review aggregates and discusses research that has examined cognitive functioning among physicians, typically when clinically referred for various medical and psychological reasons that may interfere with their ability to practice medicine. Special consideration is devoted to the role of approaches for examining cognitive functioning (e.g., cognitive screening, cognitive testing, & neuropsychological assessment), normative challenges, and cultural factors that should be considered when evaluating a physician. Based on published studies, there is evidence supportive of the use of cognitive testing and neuropsychological assessment among physicians in a fitness for duty setting. However, prospective studies designed to identify physicians at-risk (i.e., to prevent medical error) are lacking. Additional research is warranted to establish physician-based normative reference groups and aid in test interpretation and prognostication. Moreover, given limitations associated with cognitive testing in isolation, there is a potential role for comprehensive neuropsychological assessment to identify cognitive changes in physicians and provide a supportive pathway to preserve physicians’ ability to practice medicine
Global 16S rRNA diversity of provannid snail endosymbionts from Indo-Pacific deep-sea hydrothermal vents
Get PDFLine ferries and cargo ships for the monitoring of marine contaminants of emerging concern: Application along a Europe-Arctic transect
No full textContaminants of emerging concern (CEC) are a focus in marine protection. Several CECs are released with wastewater effluents to coastal environments and their offshore occurrence has been recently documented. Routine monitoring is key for implementing marine protection acts, however infrastructural, financial, and technical limitations hinder this task along broad spatial transects. Here we show the efficacy of a new infrastructure enabling unmanned sampling of surface water from ships of opportunity in providing reliable and cost-effective routine monitoring of CECs along a Europe-Arctic transect. The distribution and long-range transport of several pharmaceuticals and personal care products, artificial food additives, and stimulants were assessed. Validation of operations through strict procedural and analytical quality criteria is presented. A framework to estimate a compound-specific spatial range (SR) index of marine long-range transport based on monitoring results and information on source spatial distribution, is introduced. Estimated SR values ranged 50–350 km depending on compound, yielding a ranking of long-range transport potential which reflected expectations based on degradation half-lives. SR values were used to calculate prior maps of detection probability that can be used to plan future routine monitoring in the region
Photochemical and Photophysical Dynamics of the Aqueous Ferrate(VI) Ion
Get PDFFerrate(VI) has the potential to play a key role in future water supplies. Its salts have been suggested as green alternatives to current advanced oxidation and disinfection methods in water treatment, especially when combined with ultraviolet light to stimulate generation of highly oxidizing Fe(V) and Fe(IV) species. However, the nature of these intermediates, the mechanisms by which they form, and their roles in downstream oxidation reactions remain unclear. Here, we use a combination of optical and X-ray transient absorption spectroscopies to study the formation, interconversion, and relaxation of several excited-state and metastable high-valent iron species following excitation of aqueous potassium ferrate(VI) by ultraviolet and visible light. Branching from the initially populated ligand-to-metal charge transfer state into independent photophysical and photochemical pathways occurs within tens of picoseconds, with the quantum yield for the generation of reactive Fe(V) species determined by relative rates of the competing intersystem crossing and reverse electron transfer processes. Relaxation of the metal-centered states then occurs within 4 ns, while the formation of metastable Fe(V) species occurs in several steps with time constants of 250 ps and 300 ns. Results here improve the mechanistic understanding of the formation and fate of Fe(V) and Fe(IV), which will accelerate the development of novel advanced oxidation processes for water treatment applications
Downward-propagating eruption following vent unloading implies no direct magmatic trigger for the 2018 lateral collapse of Anak Krakatau
No full textThe lateral collapse of Anak Krakatau volcano, Indonesia, in December 2018 highlighted the potentially devastating impacts of volcanic edifice instability. Nonetheless, the trigger for the Anak Krakatau collapse remains obscure. The volcano had been erupting for the previous six months, and although failure was followed by intense explosive activity, it is the period immediately prior to collapse that is potentially key in providing identifiable, pre-collapse warning signals. Here, we integrate physical, microtextural and geochemical characterisation of tephra deposits spanning the collapse period. We demonstrate that the first post-collapse eruptive phase (erupting juvenile clasts with a low microlite areal number density and relatively large microlites, reflecting a crystal-growth dominated regime) is best explained by instantaneous unloading of a relatively stagnant upper conduit. This was followed by the second post-collapse phase, on a timescale of hours, which tapped successively hotter and deeper magma batches, reflected in increasing plagioclase anorthite content and more mafic glass compositions, alongside higher calculated ascent velocities and decompression rates. The characteristics of the post-collapse products imply downward propagating destabilisation of the magma storage system as a response to collapse, rather than pre-collapse magma ascent triggering failure. Importantly, this suggests that the collapse was a consequence of longer-term processes linked to edifice growth and instability, and that no indicative changes in the magmatic system could have signalled the potential for incipient failure. Therefore, monitoring efforts may need to focus on integrating short- and long-term edifice growth and deformation patterns to identify increased susceptibility to lateral collapse. The post-collapse eruptive pattern also suggests a magma pressurisation regime that is highly sensitive to surface-driven perturbations, which led to elevated magma fluxes after the collapse and rapid edifice regrowth. Not only does rapid regrowth potentially obscure evidence of past collapses, but it also emphasises the finely balanced relationship between edifice loading and crustal magma storage
A Monolithic 3D Printed Axisymmetric Co-Flow Single and Compound Emulsion Generator
Get PDFWe report a microfluidic droplet generator which can produce single and compound droplets using a 3D axisymmetric co-flow structure. The design considered for the fabrication of the device integrated a user-friendly and cost-effective 3D printing process. To verify the performance of the device, single and compound emulsions of deionized water and mineral oil were generated and their features such as size, generation frequency, and emulsion structures were successfully characterized. In addition, the generation of bio emulsions such as alginate and collagen aqueous droplets in mineral oil was demonstrated in this study. Overall, the monolithic 3D printed axisymmetric droplet generator could offer any user an accessible and easy-to-utilize device for the generation of single and compound emulsions