bluuebunny/crossref_metadata_2025_split huggingface dataset:
RETRACTED ARTICLE: Effect of Covid-19 on households welfare in Afar Regional State, Ethiopia
Authors: Asfaw Dagmawe Menelek , Ali Abdurhman Kedir , Ali Mohammed Adem 
Published: August 2022

AbstractThe main objective of this study was to analyze the effect of COVID-19 on social welfare in the case of Afar regional, state, Ethiopia using panel data collected from a sample of 384 in Asyaita, Dubti Samara-Logia, and Awash town. Both descriptive statistics and econometric models were used to analyze the data. The descriptive analysis results revealed that the main source of income emanated from self-employment (81.67%), from the total households 70% of them were engaged in the service sector, due to COVID-19 the income trends of 81% of households decreased, increase expenditure on food & food items (13%) and service delivering (15%). After conducting necessary pre and post-estimation tests, the econometric model found that the three basic policy variables (number of COVID-19 victims, number of days with the COVID-19 disease and transportation ban) adversely affected the welfare of the society by lessening the income of households and growing their expenditures. Finally, considering regional experience, econometric and descriptive results, this study recommends that the government and the concerned policy maker should give more attention and subsidize the service sector, support those self-employee and daily laborers, make awareness to the society about COVID-19 epidemic, place an alternative mechanism to fill potential trade gaps.
Construction of aggregation paradoxes through load-sharing models
Authors: De Santis Emilio , Spizzichino Fabio 
Published: August 2022

AbstractWe show that load-sharing models (a very special class of multivariate probability models for nonnegative random variables) can be used to obtain basic results about a multivariate extension of stochastic precedence and related paradoxes. Such results can be applied in several different fields. In particular, applications of them can be developed in the context of paradoxes which arise in voting theory. Also, an application to the notion of probability signature may be of interest, in the field of systems reliability.
Dental high-speed handpiece and ultrasonic scaler aerosol generation levels and the effect of suction and air supply
Authors: Choi Joanne Jung Eun , Chen Jason , Choi Yunsun Jane , Moffat Susan M. , Duncan Warwick J. , Waddell J. Neil , Jermy Mark 
Published: August 2022

AbstractObjective:Exposure to aerosol spray generated by high-speed handpieces (HSHs) and ultrasonic scalers poses a significant health risk to oral health practitioners from airborne pathogens. Aerosol generation varies with different HSH designs, but to date, no study has measured this.Materials and methods:We measured and compared aerosol generation by (1) dental HSHs with 3 different coolant port designs and (2) ultrasonic scalers with no suction, low-volume evacuation (LVE) or high-volume evacuation (HVE). Measurements used a particle counter placed near the operator’s face in a single-chair, mechanically ventilated dental surgery. Volume concentrations of aerosol, totaled across a 0.3–25-µm size range, were compared for each test condition.Results:HSH drilling and scaling produced significantly high aerosol levels (P < .001) with total volume concentrations 4.73×108µm3/m3 and 4.18×107µm3/m3, respectively. For scaling, mean volume of aerosol was highest with no suction followed by LVE and HVE (P < .001). We detected a negative correlation with both LVE and HVE, indicating that scaling with suction improved operator safety. For drilling, simulated cavity preparation with a 1-port HSH generated the most aerosol (P < .01), followed by a 4-port HSH. Independent of the number of cooling ports, lack of suction caused higher aerosol volume (1.98×107 µm3/m3) whereas HVE significantly reduced volume to −4.47×105 µm3/m3.Conclusions:High concentrations of dental aerosol found during HSH cavity preparation or ultrasonic scaling present a risk of infection, confirming the advice to use respiratory PPE. HVE and LVE both effectively reduced aerosol generation during scaling, whereas the new aerosol-reducing ‘no air’ function was highly effective and can be recommended for HSH drilling.
A unifying approach to non-minimal quasi-stationary distributions for one-dimensional diffusions
Authors: Yamato Kosuke 
Published: August 2022

AbstractWe study convergence to non-minimal quasi-stationary distributions for one-dimensional diffusions. We give a method for reducing the convergence to the tail behavior of the lifetime via a property we call the first hitting uniqueness. We apply the results to Kummer diffusions with negative drift and give a class of initial distributions converging to each non-minimal quasi-stationary distribution.
Government Preferences, Vote Choice and Strategic Voting in Canada
Authors: Rivard Alex B. , Lockhart Mackenzie 
Published: August 2022

AbstractDo voters use information about and preferences over who will form government in their vote choices? Voters might have preferences over both which party wins the most seats and what type of government that party can form, which they can use to inform their vote choice. To answer this question, we examine the influence of preferences over government types and compare them to trends in party support in the 2019 Canadian federal election. Using rolling, daily cross-sectional survey evidence from the Canadian Election Study, we find that preferences over government type are strongly related to vote choice and that this relationship depends on the perceived viability of the preferred party. We also find that this relationship differs outside and within Quebec: outside Quebec, only the Liberal Party suffers among voters preferring minority governments, while within Quebec, the Liberal Party, New Democratic Party and Conservative Party all struggle to hold on to voters who prefer minority governments.
The Great Revenue Divergence
Authors: Lee Alexander , Paine Jack 
Published: August 2022

AbstractThis article describes and explains a previously overlooked empirical pattern in state revenue collection. As late as 1913, central governments in the West collected similar levels of per capita revenue as the rest of the world, despite ruling richer societies and experiencing a long history of fiscal innovation. Western revenue levels permanently diverged only in the following half-century. We identify the twentieth-century great revenue divergence by constructing a new panel data set of central government revenue with broad spatial and temporal coverage. To explain the pattern, we argue that sustainably high levels of revenue extraction require societal demand for an activist state, and a supply of effective bureaucratic institutions. Neither factor in isolation is sufficient. We formalize this insight in a game-theoretic model. The government can choose among low-effort, legibility-intensive, and crony-favoring strategies for raising revenues. Empirically, our theory accounts for low revenue intake in periods of low demand (the nineteenth-century West) or low bureaucratic capacity (twentieth-century former colonies), and for eventual revenue spikes in the West.
A well-known representation of monoids and its application to the function ‘vector reverse’
Authors: SWIERSTRA WOUTER 
Published: August 2022

Abstract
Vectors—or length-indexed lists—are classic example of a dependent type. Yet, most tutorials stay clear of any function on vectors whose definition requires non-trivial equalities between natural numbers to type check. This pearl shows how to write functions, such as vector reverse, that rely on monoidal equalities to be type correct without having to write any additional proofs. These techniques can be applied to many other functions over types indexed by a monoid, written using an accumulating parameter, and even be used to decide arbitrary equalities over monoids ‘for free.’
Ritualizing citizenship in fifteenth-century Barcelona
Authors: Obradors-Suazo Carolina 
Published: August 2022

AbstractThis article analyses the ritualistic aspects of medieval citizenship through the example of fifteenth-century Barcelona. The unique citizenship sources of Barcelona allow for a detailed study of the negotiations between urban dwellers and their institutions in the making of citizens. Accordingly, the article examines how the witnesses of citizenship candidates and municipal authorities framed these negotiations in terms of ritual by promoting a codified notion of belonging that helped them all navigate the ambiguities of status and identification.
Intranasal dexmedetomidine for transthoracic echocardiography in infants with shunt-dependent single ventricle heart disease
Authors: Ellepola Chalani D. , Handler Stephanie S. , Frommelt Michele , Saudek David E. , Scott John , Hoffman George , Frommelt Peter C. 
Published: August 2022

AbstractObjectives:We investigated the efficacy and complication profile of intranasal dexmedetomidine for transthoracic echocardiography sedation in patients with single ventricle physiology and shunt-dependent pulmonary blood flow during the high-risk interstage period.Methods:A single-centre, retrospective review identified interstage infants who received dexmedetomidine for echocardiography sedation. Baseline and procedural vitals were reported. Significant adverse events related to sedation were defined as an escalation in care or need for any additional/increased inotropic support to maintain pre-procedural haemodynamics. Minor adverse events were defined as changes from baseline haemodynamics that resolved without intervention. To assess whether sedation was adequate, echocardiogram reports were reviewed for completeness.Results:From September to December 2020, five interstage patients (age 29–69 days) were sedated with 3 mcg/kg intranasal dexmedetomidine. The median sedation onset time and duration time was 24 minutes (range 12–43 minutes) and 60 minutes (range 33–60 minutes), respectively. Sedation was deemed adequate in all patients as complete echocardiograms were accomplished without a rescue dose. When compared to baseline, three (60%) patients had a >10% reduction in heart rate, one (20%) patient had a >10% reduction in oxygen saturations, and one (20%) patient had a >30% decrease in blood pressure. Amongst all patients, no significant complications occurred and haemodynamic changes from baseline did not result in need for intervention or interruption of study.Conclusions:Intranasal dexmedetomidine may be a reasonable option for echocardiography sedation in infants with shunt-dependent single ventricle heart disease, and further investigation is warranted to ensure efficacy and safety in an outpatient setting.
Heart OBServation app: development of a decision support tool for parents of infants with severe cardiac disease
Authors: Hjorth-Johansen Elin , Børøsund Elin , Moen Anne , Harmens Anna , Martinsen Ingeborg , Wik Gunnar , Fredriksen Britt Elin , Eger Siw H.W. , Holmstrøm Henrik 
Published: August 2022

AbstractBackground and objectives:Many parents of infants with CHD find it difficult to recognise symptoms of deterioration in their children. Therefore, a personalised decision support application for parents has been developed. This application aims to increase parents’ awareness of their infant’s normal condition, help them assess signs of deterioration, decide who and when to contact health services, and what to report. The aim of this paper is to describe the concept and report results from a usability study.Methods:An interprofessional group developed a mobile application called the Heart OBServation app in close collaboration with parents using an iterative process. We performed a usability study consisting of semi-structured interviews of 10 families at discharge and after one month and arranged two focus group interviews with nurses caring for these families. A thematic framework analysis of the interviews explored the usability of features in the application. Usability was assessed twice using the System Usability Scale, and a user log was registered throughout the study.Results:The overall system usability score, 82.3 after discharge and 81.7 after one month, indicates good system usability. The features of Heart OBServation were perceived as useful to provide tailored information, increase awareness of the child’s normal condition, and to guide parents in what to look for. To empower parents, an interactive discharge checklist was added.Conclusions:The Heart OBServation demonstrated good usability and was well received by parents and nurses. Feasibility and benefits of this application in clinical practice will be investigated in further studies
The impact of a community social marketing campaign on children’s meal orders and consumption: main outcomes from a group randomised controlled trial
Authors: Hennessy Erin , Shonkoff Eleanor , Harelick Linda , Bakun Peter , Chui Kenneth , Roberts Susan , Folta Sara , Goldberg Jeanne , Economos Christina D 
Published: August 2022

AbstractObjective:Restaurants may be important settings for interventions to reduce children’s energy intake. The objective of this study was to test the impact of a parent-focused social marketing campaign to promote healthy children’s meals on calories ordered and consumed by children at quick-service restaurants (QSR).Design:Using a repeated cross-sectional study design, two urban communities were randomised to intervention (IN) v. control (C) condition. A community-wide social marketing campaign was implemented in the IN community to empower Black and Latinx mothers who frequent QSR (priority population) to select healthier options for their child.Setting:Data were collected in 2016 at QSR located within the communities pre- and post-IN and analysed in 2017.Participants:Parents (n 1686; n 819 and n 867 for I and C conditions, respectively) were recruited after placing their QSR order; a survey, receipt and their child’s leftovers were collected.Results:Calories ordered did not differ significantly between the IN and C conditions (changeadj = –146·4 kJ (–35·0 kcal); 95 % CI –428·0 kJ (–102·3 kcal), 134·6 kJ (32·2 kcal)). In a sub-analysis of only the priority audience, children in the IN community ordered significantly fewer calories compared to C children in unadjusted models (changeunadj = –510·4 kJ (–122·0 kcal); 95 % CI –1013·4 kJ (–242·2 kcal), –7·5 kJ (–1·8 kcal)), but the trend did not persist after adjusting for covariates (changeadj = –437·2 kJ (–104·5 kcal); 95 % CI –925·5 kJ (–221·2 kcal), 50·6 kJ (12·1 kcal)). Calories consumed followed similar trends.Conclusion:The campaign did not significantly reduce children’s QSR calories ordered or consumed. However, a quantitatively important mean reduction in calories was suggested among the priority audience, indicating potential for community-wide promotion of healthful children’s meals.
Broadband and compact folded substrate integrated waveguide phase shifter and its application to 180° directional coupler
Authors: Zhu Fang , Zhao Xin , Sheng Junhao , Luo Guo Qing 
Published: August 2022

AbstractIn this paper, a broadband, low insertion loss, and compact folded substrate integrated waveguide (FSIW) phase shifter is proposed for the first time. By loading the complementary split-ring resonators (CSRRs) on the middle metal layer of the FSIW, a closed-type slow-wave transmission line (TL) is obtained, which can provide a wideband phase shift (39%) compared with the equal-length fast-wave one. The enclosed structure of the CSRR-loaded FSIW prevents the CSRRs from radiation as suffered in the previous reported CSRR-loaded TLs, resulting in a low insertion loss. This feature greatly reduces the amplitude imbalance between the main line and the reference line of the phase shifter. In addition, no transition structure is required between the FSIWs with and without CSRRs for broadband impedance matching, which makes the phase shifter more compact and easier to integrate with other FSIW devices. To validate the performance of the proposed phase shifter and to illustrate its ease integration, a novel FSIW 180° directional coupler that consists of an FSIW 90° coupler and an FSIW 90° phase shifter is designed, fabricated, and measured. The measured results agree well with the simulated data.
The origins, causes and enduring significance of the Martens Clause: A view from Russia
Authors: Ivanenko Vitaliy 
Published: August 2022

AbstractThe Martens Clause owes its name to the diplomat and jurist Fyodor Fyodorovich Martens, a representative of the Russian Empire at the First Hague Conference in 1899. Drafted and proposed by Martens during the negotiations, yet as a spontaneous compromise, the Clause has been included in the preamble of the Hague Convention with Respect to the Laws and Customs of War on Land and is still considered an important principle of international humanitarian law today. This article traces the biography and academic path of F. F. Martens and explores the enduring significance of the Martens Clause.
Electron Flux Variability and Ultra‐Low Frequency Wave Activity in the Outer Radiation Belt Under the Influence of Interplanetary Coronal Mass Ejections and High‐Speed Solar Wind Streams: A Statistical Analysis From the Van Allen Probes Era
Authors: Marchezi J. P. , Dai L. , Alves L. R. , Da Silva L. A. , Sibeck D. G. , Lago A. Dal , Souza V. M. , Jauer P. R. , Veira L. E. A. , Cardoso F. R. , Deggeroni V. , Alves M. V. , Wang C. , Li H. , Liu Z. 
Published: August 2022

AbstractThe ultra‐low frequency (ULF) waves can stochastically accelerate radiation belt electrons. Radial diffusion is a well‐established mechanism that can enhance or reduce the electron population in combination with other processes. Using data from the Van Allen Probes, we investigated the response of the 2.10 MeV energy electrons and ULF waves to two types of solar wind structures interacting with Earth's magnetosphere, namely, interplanetary coronal mass ejections (ICMEs) and High‐Speed solar wind streams (HSS). We use measured electron differential flux and ULF waves in the Pc4–Pc5 frequency range from October 2012 to May 2019. We examine 155 events with changes in the outer radiation belt electron differential flux. Results considering all ICMEs and HSSs during the Van Allen Probes era show that for both solar wind structures, solar wind interplanetary magnetic field Bz, solar wind proton density, and speed are related to the outer radiation belt relativistic electrons' response. The persistent ULF power is present during enhancement cases, while for reduction, the ULF waves power is concentrated at the initial reduction on the outer radiation belt electron flux.
Evidence for Secondary Ice Production in Southern Ocean Maritime Boundary Layer Clouds
Authors: Järvinen Emma , McCluskey Christina S. , Waitz Fritz , Schnaiter Martin , Bansemer Aaron , Bardeen Charles G. , Gettelman Andrew , Heymsfield Andrew , Stith Jeffrey L. , Wu Wei , D’Alessandro John J. , McFarquhar Greg M. , Diao Minghui , Finlon Joseph A. , Hill Thomas C. J. , Levin Ezra J. T. , Moore Kathryn A. , DeMott Paul J. 
Published: August 2022

AbstractMaritime boundary‐layer clouds over the Southern Ocean (SO) have a large shortwave radiative effect. Yet, climate models have difficulties in representing these clouds and, especially, their phase in this observationally sparse region. This study aims to increase the knowledge of SO cloud phase by presenting in‐situ cloud microphysical observations from the Southern Ocean Clouds, Radiation, Aerosol, Transport Experimental Study (SOCRATES). We investigate the occurrence of ice in summertime marine stratocumulus and cumulus clouds in the temperature range between 6 and −25°C. Our observations show that in ice‐containing clouds, maximum ice number concentrations of up to several hundreds per liter were found. The observed ice crystal concentrations were on average one to two orders of magnitude higher than the simultaneously measured ice nucleating particle (INP) concentrations in the temperature range below −10°C and up to five orders of magnitude higher than estimated INP concentrations in the temperature range above −10°C. These results highlight the importance of secondary ice production (SIP) in SO summertime marine boundary‐layer clouds. Evidence for rime splintering was found in the Hallett‐Mossop (HM) temperature range but the exact SIP mechanism active at lower temperatures remains unclear. Finally, instrument simulators were used to assess simulated co‐located cloud ice concentrations and the role of modeled HM rime‐splintering. We found that CAM6 is deficient in simulating number concentrations across the HM temperature range with little sensitivity to the model HM process, which is inconsistent with the aforementioned observational evidence of highly active SIP processes in SO low‐level clouds.
A Non‐Parametric Circular Statistics‐Based Framework for Predicting Peakflow Seasonality at Ungauged Sites
Authors: Kalai Chingka , Mondal Arpita 
Published: August 2022

AbstractRegional frequency analysis (RFA) serves as a useful tool for flood estimation at a regional level, to improve the precision of estimated flood quantiles or for prediction in ungauged basins. RFA is used extensively in hydrologic literature for estimation of the magnitude of the hydrologic variable (annual maximum flows), pooling data from several sites within a homogeneous region. However, in areas that experience a strong seasonality of the climate, the timing of a hazardous event, such as flood, may be equally important. Therefore, in such regions, improved estimation of annual peakflow seasonality is imperative for efficient management of water infrastructure or for undertaking timely preventive measures against floods. In this study, we propose a novel RFA framework for estimation of annual peakflow seasonality based on circular statistics. The framework consists of (a) selection of attributes based on catchment similarity using seasonality descriptors as a response, (b) formation of homogeneous regions based on the region of influence method, (c) homogeneity tests adapted to directional data on timing of annual peakflows, and (d) probabilistic prediction of annual peakflow seasonality using the non‐parametric regional circular density. Applicability of the proposed approach is first demonstrated on two synthetically generated homogeneous regions, with unimodal and bimodal annual peakflow seasonality, respectively. The proposed homogeneity test outperforms the existing test yielding H value < 1 for homogeneous regions. Further, real‐world applications are illustrated on prediction of flood peak timing in the Northwest USA, revealing nearly 75% of the sites with absolute bias <16 days.