bluuebunny/crossref_metadata_2025_split huggingface dataset:
Nudging in education: from theory towards guidelines for successful implementation
Authors: Weijers Robert J. , de Koning Björn B. , Paas Fred 
Published: August 2020

AbstractNudging is one of the strategies from behavioral economics that aims to influence behavior by changing the environment. We propose that it could also be a valuable means to influence behavior in educational contexts. However, implementation of nudging in education is yet sparse. We describe the relevant issues to consider when applying nudging in education, arguing that a focus on the long-term effects and underlying processes of a nudge is necessary for successful implementation. Then, we aim to facilitate this implementation of nudging in education by making a distinction between nudges that is relevant for overcoming these issues. Based on the framework proposed by Hansen and Jespersen (European Journal of Risk Regulation, 4(1), 3–28, 2013), we distinguish between Type 1 and Type 2 nudges, and transparent and non-transparent nudges, resulting in four nudge categories. For each of these nudge categories, we determine its suitability for different educational goals. The resulting decision matrix can help researchers and practitioners when designing nudges for an educational context.
A Rapid Qualitative Assessment of the Impact of the COVID-19 Pandemic on a Racially/Ethnically Diverse Sample of Gay, Bisexual, and Other Men who Have Sex with Men Living with HIV in the US South
Authors: Rhodes Scott D. , Mann-Jackson Lilli , Alonzo Jorge , Garcia Manuel , Tanner Amanda E. , Smart Benjamin D. , Horridge Danielle N. , Van Dam Cornelius N. , Wilkin Aimee M. 
Published: August 2020

AbstractPersons living with HIV (PLWH) may be at increased risk for severe COVID-19-related illness. Our community-based participatory research partnership collected and analyzed semi-structured interview data to understand the early impact of the COVID-19 pandemic on a sample of racially/ethnically diverse gay, bisexual, and other men who have sex with men living with HIV. Fifteen cisgender men participated; their mean age was 28. Six participants were Black/African American, five were Spanish-speaking Latinx, and four were White. Seventeen themes emerged that were categorized into six domains: knowledge and perceptions of COVID-19; COVID-19 information sources and perceptions of trustworthiness; impact of COVID-19 on behaviors, health, and social determinants of health; and general COVID-19-related concerns. Interventions are needed to ensure that PLWH have updated information and adhere to medication regimens, and to reduce the impact of COVID-19 on social isolation, economic stability, healthcare access, and other social determinants of health within this vulnerable population.
Three Planctomycetes isolated from biotic surfaces in the Mediterranean Sea and the Pacific Ocean constitute the novel species Symmachiella dynata gen. nov., sp. nov. and Symmachiella macrocystis sp. nov.
Authors: Salbreiter Markus , Waqqas Muhammad , Jogler Mareike , Kallscheuer Nicolai , Wiegand Sandra , Peeters Stijn H. , Heuer Anja , Jetten Mike S. M. , Boedeker Christian , Rast Patrick , Rohde Manfred , Jogler Christian 
Published: August 2020

AbstractPlanctomycetes is a phylum of environmentally important bacteria, which also receive significant attention due to their fascinating cell biology. Access to axenic Planctomycete cultures is crucial to study cell biological features within this phylum in further detail. In this study, we characterise three novel strains, Mal52T, Pan258 and CA54T, which were isolated close to the coasts of the islands Mallorca (Spain) and Panarea (Italy), and from Monterey Bay, CA, USA. The three isolates show optimal growth at temperatures between 22 and 24 °C and at pH 7.5, divide by polar budding, lack pigmentation and form strong aggregates in liquid culture. Analysis of five phylogenetic markers suggests that the strains constitute two novel species within a novel genus in the family Planctomycetaceae. The strains Mal52T (DSM 101177T = VKM B-3432T) and Pan258 were assigned to the species Symmachiella dynata gen nov., sp. nov., while strain CA54T (DSM 104301T = VKM B-3450T) forms a separate species of the same genus, for which we propose the name Symmachiella macrocystis sp. nov.
Addressing the Grid-Size Sensitivity Issue in Large-Eddy Simulations of Stable Boundary Layers
Authors: Dai Yi , Basu Sukanta , Maronga Björn , de Roode Stephan R. 
Published: August 2020

AbstractWe have identified certain fundamental limitations of a mixing-length parametrization used in a popular turbulent kinetic energy-based subgrid-scale model. Replacing this parametrization with a more physically realistic one significantly improves the overall quality of the large-eddy simulation (LES) of stable boundary layers. For the range of grid sizes considered here (specifically, 1 m–12.5 m), the revision dramatically reduces the grid-size sensitivity of the simulations. Most importantly, the revised scheme allows us to reliably estimate the first- and second-order statistics of a well-known LES intercomparison case, even with a coarse grid size of O(10 m).
Bioenergy technologies in long-run climate change mitigation: results from the EMF-33 study
Authors: Daioglou Vassilis , Rose Steven K. , Bauer Nico , Kitous Alban , Muratori Matteo , Sano Fuminori , Fujimori Shinichiro , Gidden Matthew J. , Kato Etsushi , Keramidas Kimon , Klein David , Leblanc Florian , Tsutsui Junichi , Wise Marshal , van Vuuren Detlef P. 
Published: August 2020

AbstractBioenergy is expected to play an important role in long-run climate change mitigation strategies as highlighted by many integrated assessment model (IAM) scenarios. These scenarios, however, also show a very wide range of results, with uncertainty about bioenergy conversion technology deployment and biomass feedstock supply. To date, the underlying differences in model assumptions and parameters for the range of results have not been conveyed. Here we explore the models and results of the 33rd study of the Stanford Energy Modeling Forum to elucidate and explore bioenergy technology specifications and constraints that underlie projected bioenergy outcomes. We first develop and report consistent bioenergy technology characterizations and modeling details. We evaluate the bioenergy technology specifications through a series of analyses—comparison with the literature, model intercomparison, and an assessment of bioenergy technology projected deployments. We find that bioenergy technology coverage and characterization varies substantially across models, spanning different conversion routes, carbon capture and storage opportunities, and technology deployment constraints. Still, the range of technology specification assumptions is largely in line with bottom-up engineering estimates. We then find that variation in bioenergy deployment across models cannot be understood from technology costs alone. Important additional determinants include biomass feedstock costs, the availability and costs of alternative mitigation options in and across end-uses, the availability of carbon dioxide removal possibilities, the speed with which large scale changes in the makeup of energy conversion facilities and integration can take place, and the relative demand for different energy services.
Ethics of digital contact tracing and COVID-19: who is (not) free to go?
Authors: Klenk Michael , Duijf Hein 
Published: August 2020

AbstractDigital tracing technologies are heralded as an effective way of containing SARS-CoV-2 faster than it is spreading, thereby allowing the possibility of easing draconic measures of population-wide quarantine. But existing technological proposals risk addressing the wrong problem. The proper objective is notsolelyto maximise the ratio of people freed from quarantine but to also ensure that the composition of the freed group is fair. We identify several factors that pose a risk for fair group composition along with an analysis of general lessons for a philosophy of technology. Policymakers, epidemiologists, and developers can use these risk factors to benchmark proposal technologies, curb the pandemic, and keep public trust.
Ordinal patterns in clusters of subsequent extremes of regularly varying time series
Authors: Oesting Marco , Schnurr Alexander 
Published: August 2020

AbstractIn this paper, we investigate temporal clusters of extremes defined as subsequent exceedances of high thresholds in a stationary time series. Two meaningful features of these clusters are the probability distribution of the cluster size and the ordinal patterns giving the relative positions of the data points within a cluster. Since these patterns take only the ordinal structure of consecutive data points into account, the method is robust under monotone transformations and measurement errors. We verify the existence of the corresponding limit distributions in the framework of regularly varying time series, develop non-parametric estimators and show their asymptotic normality under appropriate mixing conditions. The performance of the estimators is demonstrated in a simulated example and a real data application to discharge data of the river Rhine.
Being highly prolific in academic science: characteristics of individuals and their departments
Authors: Fox Mary Frank , Nikivincze Irina 
Published: August 2020

AbstractThe prolific (exceptionally high producers of scholarly publications) are strategic to the study of academic science. The highly prolific have been drivers of research activity and impact and are a window into the stratification that exists. For these reasons, we address key characteristics associated with being highly prolific. Doing this, we take a social-organizational approach and use distinctive survey data on both social characteristics of scientists and features of their departments, reported by US faculty in computer science, engineering, and sciences within eight US research universities. The findings point to a telling constellation of hierarchical advantages: rank, collaborative span, and favorable work climate. Notably, once we take rank into account, gender is not associated with being prolific. These findings have implications for understandings of being prolific, systems of stratification, and practices and policies in higher education.
‘I Felt Like I was Floating in Space’: Autistic Adults’ Experiences of Low Mood and Depression
Authors: Jordan Amy Louise , Marczak Magdalena , Knibbs Jacqueline 
Published: August 2020

AbstractIt is recognised that a high proportion of adults on the autism spectrum experience depressive symptoms. However, limited research has explored autistic peoples’ experiences of low mood and depression. The aim of this study was to explore the lived experiences of low mood and depression for adults on the autism spectrum. The study employed Interpretive Phenomenological Analysis to investigate the experiences of 8 adults (7 males and 1 female), aged between 19 and 51, who had a diagnosis of autism without co-occurring learning disabilities, and experienced low mood or depression. All participants recorded their thoughts and feelings in a mood diary for 1 week and participated in a semi-structured interview. Three superordinate themes emerged from the data: ‘Autism has made me the person I am’, ‘I can’t function in the world’ and ‘It’s like trying to do accounts on the futures market’: Making sense of emotions. Findings highlight a need for specialist mental health provision for adults who are on the autism spectrum. Limitations of this study and implications for future research are discussed.
Online scheduling of car-sharing request pairs between two locations
Authors: Luo Kelin , Xu Yinfeng , Liu Haodong 
Published: August 2020

AbstractWe consider an online car-sharing problem between two locations with advance bookings. Each customer submits a pair of requests, where each request specifies the pick-up time and the pick-up location: one request from A to B, and the other request from B to A, not necessary in this order. The scheduler aims to maximize the number of satisfied customers, where the schedule has to decide whether or not to accept a request pair immediately at the time when the request pair is submitted. This problem is called OnlineTransfersForCommuting. We present lower bounds on the competitive ratio for this problem with both fixed booking times and variable booking times, and propose two algorithms, greedy algorithm and balanced greedy algorithm, that achieve the best possible competitive ratios.
Prevalence of Intimate Partner Violence and Association with Wealth in Myanmar
Authors: Larsen Lise Wessel , Aye Win Thuzar , Bjertness Espen 
Published: August 2020

AbstractThis study explores the prevalence of physical, sexual and emotional intimate partner violence in Myanmar, attitudes towards violence, and the association between wealth and intimate partner violence. We analysed a nationally representative sample of 3425 married women aged 15–49 years from Myanmar Demographic and Health survey 2015–2016. In this cross-sectional study, data was collected by in-person interviews using a standardized questionnaire. Wealth was operationalized into five groups depending on how much the household owns. Intimate partner violence was measured based on the standard methods of Demographic and Health Survey. The overall prevalence of intimate partner violence (physical, sexual and emotional) was 20.6% (95% confidence interval (95% CI) 18.9–22.3). Less severe physical intimate partner violence was reported by 14.8% (95% CI 13.5–16.3), while 4.4% (95% CI 3.8–5.2) reported severe physical violence. The prevalence of sexual and emotional violence were 2.8% (95% CI 2.2–3.6) and 13.1% (95% CI 11.7–14.6), respectively. Many women believed that a husband has the right to beat his wife if she acts inappropriate, with the highest prevalence at 43% of the women justifying beating if the wife neglects her children. In logistic regression analysis, low wealth as compared with higher wealth, was associated with a higher prevalence of intimate partner violence. The results reveals that intimate partner violence against ever-married women in Myanmar is present, that many women justify beating, and that wealth and intimate partner violence is associated.
Global Stabilization of Two Dimensional Viscous Burgers’ Equation by Nonlinear Neumann Boundary Feedback Control and Its Finite Element Analysis
Authors: Kundu Sudeep , Pani Amiya Kumar 
Published: August 2020

AbstractIn this article, global stabilization results for the two dimensional viscous Burgers’ equation, that is, convergence of unsteady solution to its constant steady state solution with any initial data, are established using a nonlinear Neumann boundary feedback control law. Then, applying $$C^0$$

C
0

-conforming finite element method in spatial direction, optimal error estimates in $$L^\infty (L^2)$$

L
∞

(

L
2

)

and in $$L^\infty (H^1)$$

L
∞

(

H
1

)

-norms for the state variable and convergence result for the boundary feedback control law are derived. All the results preserve exponential stabilization property. Finally, several numerical experiments are conducted to confirm our theoretical findings.
Spatially-Adaptive Variational Reconstructions for Linear Inverse Electrical Impedance Tomography
Authors: Huska M. , Lazzaro D. , Morigi S. , Samorè A. , Scrivanti G. 
Published: August 2020

AbstractThe inverse electrical impedance tomography (EIT) problem involves collecting electrical measurements on the smooth boundary of a region to determine the spatially varying electrical conductivity distribution within the bounded region. Effective applications of EIT technology emerged in different areas of engineering, technology, and applied sciences. However, the mathematical formulation of EIT is well known to suffer from a high degree of nonlinearity and severe ill-posedness. Therefore, regularization is required to produce reasonable electrical impedance images. Using difference imaging, we propose a spatially-variant variational method which couples sparsity regularization and smoothness regularization for improved EIT linear reconstructions. The EIT variational model can benefit from structural prior information in the form of an edge detection map coming either from an auxiliary image of the same object being reconstructed or automatically detected. We propose an efficient algorithm for minimizing the (non-convex) function based on the alternating direction method of multipliers. Experiments are presented which strongly indicate that using non-convex versus convex variational EIT models holds the potential for more accurate reconstructions.
Blockchain Signaling System (BloSS): Cooperative Signaling of Distributed Denial-of-Service Attacks
Authors: Rodrigues Bruno , Scheid Eder , Killer Christian , Franco Muriel , Stiller Burkhard 
Published: August 2020

AbstractDistributed Denial-of-Service (DDoS) attacks are one of the major causes of concerns for communication service providers. When an attack is highly sophisticated and no countermeasures are available directly, sharing hardware and defense capabilities become a compelling alternative. Future network and service management can base its operations on equally distributed systems to neutralize highly distributed DDoS attacks. A cooperative defense allows for the combination of detection and mitigation capabilities, the reduction of overhead at a single point, and the blockage of malicious traffic near its source. Main challenges impairing the widespread deployment of existing cooperative defense are: (a) high complexity of operation and coordination, (b) need for trusted and secure communications, (c) lack of incentives for service providers to cooperate, and (d) determination on how operations of these systems are affected by different legislation, regions, and countries. The cooperative Blockchain Signaling System (BloSS) defines an effective and alternative solution for security management, especially cooperative defenses, by exploiting Blockchains (BC) and Software-Defined Networks (SDN) for sharing attack information, an exchange of incentives, and tracking of reputation in a fully distributed and automated fashion. Therefore,BloSSwas prototyped and evaluated through a global experiment, without the burden to maintain, design, and develop special registries and gossip protocols.
Isoflurane promotes proliferation of squamous cervical cancer cells through mTOR-histone deacetylase 6 pathway
Authors: Zhang Wenwen , Xue Fang , Xie Shangdan , Chen Cheng , Li Jingwei , Zhu Xueqiong 
Published: August 2020

AbstractThis study investigated the effect of isoflurane on the proliferation of squamous cervical cancer cells, with focus on histone deacetylase 6 that is closely related to carcinogenesis. Squamous cervical cancer cells SiHa and Caski were exposed to 1%, 2%, or 3% isoflurane for 2 h, respectively. Cell proliferation was measured with the cell counting kit (CCK-8) assay and determined by BrdU assay. Expression of histone deacetylase 6, phospho-AKT, phospho-mTOR, and proliferating cell nuclear antigen (PCNA) was assessed by Western blot. In order to block the histone deacetylase 6 (HDAC6) expression, siRNA transfection was performed. Isoflurane significantly promoted the proliferation of both SiHa and Caski cells, accompanied by upregulation of PCNA protein expression. Isoflurane increased the level of histone deacetylase 6 protein expression in both cells, and knockdown of histone deacetylase 6 attenuated the pro-proliferation effects of isoflurane. Additionally, activation of AKT/mTOR was found after isoflurane treatment, and mTOR inhibition abolished isoflurane-induced histone deacetylase 6 expression. However, inhibition of AKT phosphorylation had no effect on the expression of histone deacetylase 6 mediated by isoflurane. In conclusion, Isoflurane enhanced proliferation of cervical cancer cells through upregulation of histone deacetylase 6, which was associated with mTOR-dependent pathway, but not AKT-mediated pathway.
Do Doctors Differentiate Between Suicide and Physician-Assisted Death? A Qualitative Study into the Views of Psychiatrists and General Practitioners
Authors: Pronk Rosalie , Willems Dick L. , van de Vathorst Suzanne 
Published: August 2020

AbstractPhysician-assisted death for patients suffering from psychiatric disorders is allowed in the Netherlands under certain circumstances. One of the central problems that arise with regard to this practice is the question of whether it is possible to distinguish between suicidality and a request for physician-assisted death. We set up this study to gain insight into how psychiatrists and general practitioners distinguish between suicidality and physician-assisted death. The data for this study were collected through qualitative interviews with 20 general practitioners and 17 psychiatrists in the Netherlands. From the interviews, we conclude that physicians distinguish three types of death wishes among patients suffering from psychiatric disorders: ‘impulsive suicidality,’ ‘chronic suicidality,’ and ‘rational death wishes.’ To discern between them they evaluate whether the death wish is seen as part of the psychopathology, whether it is consistent over time, and whether they consider it treatable. Some considered physician-assisted death an alternative to a ‘rational suicide,’ as this was perceived to be a more humane manner of death for the patient and their relatives. We argue that physician-assisted death can be justified also in some cases in which the death wish is part of the psychopathology, as the patient’s suffering can be unbearable and irremediable. Physician-assisted death in these cases may remain the only option left to relieve the suffering.
On the universality of the quantum approximate optimization algorithm
Authors: Morales M. E. S. , Biamonte J. D. , Zimborás Z. 
Published: August 2020

AbstractThe quantum approximate optimization algorithm (QAOA) is considered to be one of the most promising approaches towards using near-term quantum computers for practical application. In its original form, the algorithm applies two different Hamiltonians, called the mixer and the cost Hamiltonian, in alternation with the goal being to approach the ground state of the cost Hamiltonian. Recently, it has been suggested that one might use such a set-up as a parametric quantum circuit with possibly some other goal than reaching ground states. From this perspective, a recent work (Lloyd, arXiv:1812.11075) argued that for one-dimensional local cost Hamiltonians, composed of nearest neighbour ZZ terms, this set-up is quantum computationally universal and provides a universal gate set, i.e. all unitaries can be reached up to arbitrary precision. In the present paper, we complement this work by giving a complete proof and the precise conditions under which such a one-dimensional QAOA might produce a universal gate set. We further generalize this type of gate-set universality for certain cost Hamiltonians with ZZ and ZZZ terms arranged according to the adjacency structure of certain graphs and hypergraphs.