bluuebunny/crossref_metadata_2025_split huggingface dataset:
Social network characteristics and HIV testing among older adults in South Africa
Authors: Lee Jin A. , Schafer Markus H. 
Published: June 2021

AbstractDrawing from theory and research on the role of social networks in promoting or undermining preventative public health measures, this article considers how structural, compositional and functional aspects of older adults’ close social networks are associated with HIV testing in the context of rural South Africa. Analyses use data from the population-based Health and Aging in Africa: A Longitudinal Study of an INDEPTH Community in South Africa (HAALSI) – a sample of rural adults age 40+ (N = 4,660). Results from multiple logistic regression show older South African adults with larger, more heavily non-kin and more literate networks were most likely to report testing for HIV. People whose network members provided frequent information were also most likely to be tested, though interaction effects indicate that this pattern is primarily found among those with highly literate networks. Taken together, the findings reinforce a key insight from social capital perspectives: network resourcefulness – literacy in particular – is crucial for promoting preventative health practice. The synergy between network literacy and informational support reveals the complex interplay between network characteristics in shaping health-seeking behaviour. Continued research is needed on the connection between networks and HIV testing among sub-Saharan older adults, as this population is not currently well served by many public health efforts in the region.
A multiple working mode approach to robotic hammering: Analysis and experiments
Authors: Romanyuk Vladyslav , Soleymanpour Sina , Liu Guangjun 
Published: June 2021

AbstractA robot arm may be in need for performing various operations, especially for service robots and space robots. This paper presents a strategy that allows a modular and reconfigurable robot to safely perform nail hammering without hardware enhancements. The purpose is to equip a versatile robot arm with hammering capability that can be used if needed. To do this, a multiple working mode approach is applied to switch the selected joint(s) to passive mode with friction compensation to allow free rotation during impact. Analytic impulse models are used to predict joint impulses and serve as criteria for mode switching. Advantages of the proposed approach include savings on space, weight, costs, and complexity for a limited range of nail/board environments. An experimental study has validated analytic models of hammering and demonstrated the effectiveness of the proposed approach.
Effective grounding for hybrid planning problems represented in PDDL+
Authors: Scala Enrico , Vallati Mauro 
Published: June 2021

AbstractAutomated planning is the field of Artificial Intelligence (AI) that focuses on identifying sequences of actions allowing to reach a goal state from a given initial state. The need of using such techniques in real-world applications has brought popular languages for expressing automated planning problems to provide direct support for continuous and discrete state variables, along with changes that can be either instantaneous or durative. PDDL+ (Planning Domain Definition Language +) models support the encoding of such representations, but the resulting planning problems are notoriously difficult for AI planners to cope with due to non-linear dependencies arising from the variables and infinite search spaces. This difficulty is exacerbated by the potentially huge fully ground representations used by modern planners in order to effectively explore the search space, which can make some problems impossible to tackle.This paper investigates two grounding techniques for PDDL+ problems, both aimed at reducing the size of the full ground representation by reasoning over the lifted, more abstract problem structure. The first method extends the simple mechanism of invariant analysis to limit the groundings of operators upfront. The second method proposes to tackle the grounding process through a PDDL+ to classical planning abstraction; this allows us to leverage the amount of research done in the classical planning area. Our empirical analysis studies the effect of these novel approaches over both real-world hybrid applications and synthetic PDDL+ problems took from standard benchmarks of the planning community; our results reveal that not only the techniques improve the running time of previous grounding mechanisms but also let the planner extend the reach to problems that were not solvable before.
Impact of Christian Orthodox Church dietary recommendations on metabolic syndrome risk factors: a scoping review
Authors: Kokkinopoulou A. , Kafatos A. 
Published: June 2021

AbstractFasting has been a practice among followers of different religions for many years. Christian Orthodox Church (COC) fasting is a periodic vegetarian-type diet in which seafood and snails are allowed on most fasting days. The present scoping review aimed to present available data regarding the benefits of COC fasting on metabolic syndrome (MetS) risk factors. Databases were searched for available studies. Twenty publications, with a total of 1226 fasting participants, provided data on the effects on different variables of MetS, including blood pressure, blood lipids and anthropometric measurements. Fasters’ diet is characterised by low saturated and trans fat intake, high complex carbohydrate and fibre consumption, due to permissible foods. COC fasting has no deficiency in essential amino acid intake since seafood and snails are allowed on fasting days. Fasters have healthier blood lipid profiles during and after COC fasting periods, and total cholesterol, LDL-cholesterol, systolic blood pressure, body weight and BMI are reduced after a fasting period. Due to restricted or forbidden intake of specific foods during the COC fasting periods, one might expect that fasters have reduced intake of macro- and micronutrients, but as shown in the available literature, there are no deficiencies. Future research on COC fasting is needed in areas not investigated at all, like MetS, before reaching definite conclusions.
Patents, Governance and Control: Ethics and the Patentability of Novel Beings and Advanced Biotechnologies in Europe
Authors: McMahon Aisling 
Published: June 2021

AbstractThis article focuses primarily on to what extent novel beings, and particularly, beings which display something akin to human consciousness or agency would be (or should be) patentable under current European patent law. Patents grant the patent holder a right to exclude others from using the patented invention for the period of patent grant (usually 20 years). This allows the patent holder to control how that invention can or cannot be used by others downstream, granting patent holders a governance like function over the patented technology for the duration of the patent. Accordingly, the potential for patentability of novel beings gives rise to a myriad of ethical issues including: to what extent is it appropriate for patent holders to retain and exercise patents over “novel beings”; how issues of “agency” displayed by any “novel beings” would fit within the current patent framework, if at all; and to what extent existing exclusions from patentability might exclude patents on “novel beings” or whether changes within patent law may be needed if patents in relation to “novel beings” are deemed ethically problematic. This article focuses on such issues, and in doing so, also sheds light on the role of ethical issues within the patenting of advanced biotechnologies more generally.
Lifestyle and eating habits before and during COVID-19 quarantine in Brazil
Authors: Souza Tamires CM , Oliveira Lívya A , Daniel Marina M , Ferreira Lívia G , Della Lucia Ceres M , Liboredo Juliana C , Anastácio Lucilene R 
Published: June 2021

AbstractObjective:To assess changes in daily habits, food choices and lifestyle of adult Brazilians before and during the COVID-19 pandemic.Design:This observational study was carried out with Brazilian adults through an online questionnaire 5 months after the social distance measures implementation. The McNemar, McNemar–Bowker and Wilcoxon tests were used to investigate differences before and during the COVID pandemic period, adopting the statistical significance of P < 0·05.Setting:Brazil.Participants:Totally, 1368 volunteers aged 18+ years.Results:The volunteers reported a lower frequency of breakfast, morning and lunch snacks (P < 0·05) and a higher frequency of evening snacks and other meal categories during the pandemic period (P < 0·05). The results showed an increase in the consumption of bakery products, instant meals and fast food, while the consumption of vegetables and fruits decreased (P < 0·005). There was a significant increase in the frequency of consumption of alcoholic beverages (P < 0·001), but a reduction in the dose (P < 0·001), increased frequency of smoking (P = 0·007), an increase in sleep and screen time in hours and decrease in physical activity (P < 0·001).Conclusions:It was possible to observe an increase in screen time, hours of sleep, smoking and drinking frequency. On the other hand, there was a reduction in the dose of alcoholic beverages but also in the practice of physical activity. Eating habits also changed, reducing the performance of daytime meals and increasing the performance of nighttime meals. The frequency of consumption of instant meals and fast food has increased, while consumption of fruits and vegetables has decreased.
Further thoughts on Asian Studies “inside-out”
Authors: Isaac Allan Punzalan , Mathew Johan , Nerlekar Anjali , Schalow Paul , Sears Tamara 
Published: June 2021

AbstractIn response to Sato and Sonoda's “Asian Studies ‘inside out’: research agenda for the development of Global Asian Studies,” members of the Global Asias Collaborative at Rutgers University – comprised of a diverse group of scholars of Asia and the Asian diaspora located in history, literature, art history, geography, among other disciplines – offer responses to this generative prompt to remap the place and field of “Asia” in its heterogeneous and interwoven temporalities and topologies.
It's a Long Way to the Top: Women's Ministerial Career Paths
Authors: Kroeber Corinna , Hüffelmann Joanna 
Published: June 2021

AbstractMinisterial portfolios that promise high status, broad public visibility, and extensive financial and personnel resources continue to be men's domains. In this article, we shed light on gender inequality in ministerial selection processes by studying the duration from a minister's original appointment as a member of cabinet until he or she receives responsibility for a highly prestigious portfolio. We argue that the time it takes for ambitious politicians to prove themselves suitable for this type of cabinet position depends on their sex and the degree to which the policy area for which they are responsible reinforces stereotypical expectations about their personality traits. Empirical evidence from event history analysis of original data including detailed information on all ministerial careers in 27 European countries between 1990 to 2018 supports these propositions. These findings reveal that even highly qualified women politicians who are already members of the executive face additional barriers during their political careers.
How to fairly allocate scarce medical resources? Controversial preferences of healthcare professionals with different personal characteristics
Authors: Pinho Micaela , Araújo Alexandra 
Published: June 2021

Abstract
The scarcity of medical resources is widely recognized, and therefore priority setting is inevitable. This study examines whether Portuguese healthcare professionals (physicians vs nurses): (i) share the moral guidance proposed by ethicists and (ii) attitudes toward prioritization criteria vary among individual and professional characteristics. A sample of 254 healthcare professionals were confronted with hypothetical prioritization scenarios involving two patients distinguished by personal or health characteristics. Descriptive statistics and parametric analyses were performed to evaluate and compare the adherence of both groups of healthcare professionals regarding 10 rationing criteria: waiting time, treatment prognosis measured in life expectancy and quality of life, severity of health conditions measured in pain and immediate risk of dying, age discrimination measured in favoring the young over older and favoring the youngest over the young, merit evaluated positively or negatively, and parenthood. The findings show a slight adherence to the criteria. Waiting time and patient pain were the conditions considered fairer by respondents in contrast with the ethicists normative. Preferences for distributive justice vary by professional group and among participants with different political orientations, rationing experience, years of experience, and level of satisfaction with the NHS. Decision-makers should consider the opinion of ethicists, but also those of healthcare professionals to legitimize explicit guidelines.
Hazards and fallacies of social measurements: global indicators in the pandemic
Authors: Infantino Marta 
Published: June 2021

AbstractSince the outbreak of the COVID-19 pandemic, efforts to quantitatively measure the global health situation and/or governments’ reaction vis-à-vis the pandemic have flourished. In spite of the significance of data in the fight against the pandemic, however, such global knowledge is largely questionable, insofar as it exposes itself to the many hazards and fallacies associated with global attempts to frame the social world in numbers. This is why the paper attempts to identify the hazards and fallacies most commonly associated with global measurements of social phenomena and to verify whether and to what extent these hazards and fallacies affect numerical representations of the pandemic and its effects. To this end, the paper analyses ten English-language global numerical initiatives that were launched between January and May 2020, and reviews them in light of existing critical literature on global numbers. The aim is to provide a deeper understanding of global measurements of health and related law-and-policy measures, and to suggest caution about their use as a basis for knowledge and action in the context of the pandemic.
Casualties of preparedness: the Global Health Security Index and COVID-19
Authors: Mahajan Manjari 
Published: June 2021

AbstractThe 2019 Global Health Security Index (GHS Index) assessed the US and the UK as the two countries best prepared to address a catastrophic pandemic. The preparedness rankings of this index have had little correlation with the actual experiences of COVID-19 in various countries. In explaining this disrepancy, the paper argues that better indicators and more data would not have fixed the problem. Rather, the prevailing paradigm of global health security that informs instruments such as the GHS Index needs to be interrogated. This dominant paradigm narrowly conceptualises global health security in terms of the availability of a technical infrastructure to detect emerging infectious diseases and prevent their contagion, but profoundly undertheorises the broader social and political determinants of public health. The neglect of social and political features is amplified in instruments such as the GHS Index that privilege universalised templates presumed to apply across countries but that prove to be inadequate in assessing how individual societies draw on their unique histories to craft public health responses.
Simulation of Record Arctic Stratospheric Ozone Depletion in 2020
Authors: Grooß Jens‐Uwe , Müller Rolf 
Published: June 2021

AbstractIn the Arctic winter/spring of 2019/2020, stratospheric temperatures were exceptionally low until early April and the polar vortex was very stable. As a consequence, significant chemical ozone depletion occurred in the Arctic polar vortex in spring 2020. Here, we present simulations using the Chemical Lagrangian Model of the Stratosphere that address the development of chlorine compounds and ozone in the Arctic stratosphere in 2020. The simulation reproduces relevant observations of ozone and chlorine compounds, as shown by comparisons with data from the Microwave Limb Sounder, Atmospheric Chemistry Experiment‐Fourier Transform Spectrometer, balloon‐borne ozone sondes, and the Ozone Monitoring Instrument. Although the concentration of chlorine and bromine compounds in the polar stratosphere has decreased by more than 10% compared to peak values around the year 2000, the meteorological conditions in winter/spring 2019/2020 caused unprecedented ozone depletion. The lowest simulated ozone mixing ratio was about 40 ppbv. Because extremely low ozone mixing ratios were reached in the lower polar stratosphere, chlorine deactivation into HCl occurred as is normally observed in the Antarctic polar vortex. The depletion in partial column ozone in the lower stratosphere (potential temperature from 350 to 600 K, corresponding to about 12–24 km) in the vortex core was calculated to reach 143 Dobson Units, which is more than the ozone loss in 2011 and 2016, the years which —until 2020— had seen the largest Arctic ozone depletion on record.
Unknown Eruption Source Parameters Cause Large Uncertainty in Historical Volcanic Radiative Forcing Reconstructions
Authors: Marshall Lauren R. , Schmidt Anja , Johnson Jill S. , Mann Graham W. , Lee Lindsay A. , Rigby Richard , Carslaw Ken S. 
Published: June 2021

AbstractReconstructions of volcanic aerosol radiative forcing are required to understand past climate variability. Currently, reconstructions of pre‐20th century volcanic forcing are derived from sulfate concentrations measured in polar ice cores, mainly using a relationship between the average ice‐sheet sulfate deposition and stratospheric sulfate aerosol burden based on a single explosive eruption—the 1991 eruption of Mt. Pinatubo. Here we estimate volcanic radiative forcings and associated uncertainty ranges from ice‐core sulfate records of eight of the largest bipolar deposition signals in the last 2,500 years using statistical emulation of a perturbed parameter ensemble of aerosol‐climate model simulations of explosive eruptions. Extensive sampling of different combinations of eruption source parameters using the emulators reveals that a very wide range of eruptions in different seasons with different sulfur dioxide emissions, eruption latitudes, and emission altitudes produce ice‐sheet sulfate deposition consistent with ice‐core records. Consequently, we find a large range in the volcanic forcing that can be directly attributed to the unknown eruption source parameters. We estimate that the uncertainty in volcanic forcing caused by many plausible eruption realizations leads to uncertainties in the global mean surface cooling of around 1°C for the largest unidentified historical eruptions. Our emulators are available online (https://cemac.github.io/volcanic-forcing-deposition) where eruption realizations for given ice‐sheet sulfate depositions can be explored.
The Detectability Limit of Organic Molecules Within Mars South Polar Laboratory Analogs
Authors: Campbell J. D. , Schmitt B. , Brissaud O. , Muller J‐P. 
Published: June 2021

AbstractA series of laboratory experiments was carried out in order to generate a diagnostic spectrum for polycyclic aromatic hydrocarbons (PAHs) of astrobiological interest in the context of the Martian South Polar Residual Cap (SPRC), to establish PAH spectral features more easily detectable in CO2 ice (mixed with small amounts of H2O ice) than the previously reported absorption feature at 3.29 µm in order to constrain their detectability limit. There is currently no existing literature on PAH detection within SPRC features, making this work novel and impactful given the recent discovery of a possible subglacial lake beneath the Martian South Pole. Although they have been detected in Martian meteorites, PAHs have not been detected yet on Mars, possibly due to the deleterious effects of ultraviolet radiation on the surface of the planet. SPRC features may provide protection to fragile molecules, and this work seeks to provide laboratory data to improve interpretation of orbital remote sensing spectroscopic imaging data. We also ascertain the effect of CO2 ice sublimation on organic spectra, as well as provide PAH reference spectra in mixtures relevant to Mars. A detectability limit of ∼0.04% has been recorded for observing PAHs in CO2 ice using laboratory instrument parameters emulating those of the Compact Reconnaissance Imaging Spectrometer for Mars, with new spectral slope features revealed between 0.7 and 1.1 µm, and absorption features at 1.14 and most sensitively, at 1.685 µm. Mars regolith analog mixed with a concentration of 1.5% PAHs resulted in no discernible organic spectral features. These detectability limits measured in the laboratory are discussed and extrapolated to the effective conditions on the Mars South Polar Cap in terms of dust and water ice abundance and CO2 ice grain size for both the main perennial cap and the H2O ice‐dust sublimation lag deposit.
Driving Mechanisms of Sedimentary 230Th and 231Pa Variability in the Western Arctic Ocean Through the Last Glacial Cycle
Authors: Xu Qian , Xiao Wenshen , Wang Rujian , Süfke Finn , Lippold Jörg , Not Christelle 
Published: June 2021

AbstractConcentration profiles of excess 230Th and 231Pa (230Thxs and 231Paxs) in Arctic Ocean sediment cores exhibit strong temporal variabilities, but the mechanisms responsible for the variabilities remain poorly understood. Here, we present new 230Thxs and 231Paxs profiles from the Mendeleev Ridge to examine downcore 230Thxs and 231Paxs distributions and their connection to environmental conditions in the Arctic. Measurable concentrations of 230Thxs(231Paxs) from the new record display an alternation of “230Thxs(231Paxs)‐rich” and “230Thxs(231Paxs)‐poor” sections as observed in the other cores from the Mendeleev Ridge. Sedimentary characteristics reveal that this alternation does not directly correspond to interglacial‐glacial cycles. The 230Thxs and 231Paxs concentrations show an inverse relationship to their corresponding sedimentation rates, suggesting the distributions of 230Thxs and 231Paxs are affected by variable dilution with terrigenous material. However, changes in lateral transport of these isotopes may also account for the observed oscillations. Sedimentary cumulative inventories of 230Thxs show evidence for a net deficit of 230Th in the sediments during the last glacial period, possibly due to a lack of scavenging material in general.