bluuebunny/crossref_metadata_2025_split huggingface dataset:
The Role of the Sense of Belonging During the Alarm Situation and Return to the New Normality of the 2020 Coronavirus Pandemic (COVID-19) in Spain
Authors: Saiz Jesús , González-Sanguino Clara , Ausín Berta , Castellanos Miguel Ángel , Abad Ana , Salazar María , Muñoz Manuel 
Published: July 2021

AbstractIn this study we intend to understand the impact of the COVID-19 crisis and the subsequent stay-at-home orders, on the Spanish population's sense of belonging at three moments in time: at the beginning of the lockdown, after one month of lockdown and with the return to the “new normality”. A cross-sectional study was conducted through an online survey (N0 = 3480; N1 = 1041; N2 = 569). The sense of belonging was evaluated by means of four Likert-type items. These questions included membership in different groups: work/studies, friends, family and neighborhood or community. Sociodemographic and COVID-19-related data were collected. Additionally, mental health, spiritual well-being, loneliness, social support and discrimination were assessed. Descriptive analyses were carried out and linear regression models compiled. The sense of belonging increased significantly during confinement, dropping dramatically with the start of the return to the “new normality” process. The only variable that showed interaction with time and sense of belonging was discrimination. Work condition (not working providing the lowest sense of belonging scores), social support from friends and loneliness were the main predictors of the sense of belonging. The impact caused by the pandemic and the actions adopted during the first weeks regarding the sense of belonging is evident. It has been a key variable in dealing with COVID-19. Actions are now needed to increase our sense of belonging to face the post-epidemic crisis and avoid a greater impact in other areas.
Semiregular and strongly irregular boundary points for p-harmonic functions on unbounded sets in metric spaces
Authors: Björn Anders , Hansevi Daniel 
Published: July 2021

AbstractThe trichotomy between regular, semiregular, and strongly irregular boundary points for $$p$$
p
-harmonic functions is obtained for unbounded open sets in complete metric spaces with a doubling measure supporting a $$p$$
p
-Poincaré inequality, $$1<p<\infty $$

1
<
p
<
∞

. We show that these are local properties. We also deduce several characterizations of semiregular points and strongly irregular points. In particular, semiregular points are characterized by means of capacity, $$p$$
p
-harmonic measures, removability, and semibarriers.
Chemical vapor treatment to improve surface finish of 3D printed polylactic acid (PLA) parts realized by fused filament fabrication
Authors: Lavecchia Fulvio , Guerra Maria Grazia , Galantucci Luigi Maria 
Published: July 2021

AbstractFused filament fabrication (FFF) is one of the most extensively used 3D printing process for its several advantages and the possibility to obtain complex geometries. Different materials can be processed and polylactic acid (PLA), a thermoplastic biodegradable cost-effective material, is widely used for consumer FFF. Typically, PLA printed parts have high surface roughness, due to the staircase effect, the slice-to-slice construction texture and the filament deposition. In this work, authors propose a quantitative analysis of the effects of a chemical treatment based on ethyl acetate vapors, to improve the surface finish of PLA printed parts. The solvent was selected for its low toxicity, easy availability, and low cost. To validate the treatment, a 23 full factorial plan was designed and a roughness analysis before and after the chemical treatment was performed to highlight the influence of each parameter involved.
A Low Mach Number IMEX Flux Splitting for the Level Set Ghost Fluid Method
Authors: Zeifang Jonas , Beck Andrea 
Published: July 2021

AbstractConsidering droplet phenomena at low Mach numbers, large differences in the magnitude of the occurring characteristic waves are presented. As acoustic phenomena often play a minor role in such applications, classical explicit schemes which resolve these waves suffer from a very restrictive timestep restriction. In this work, a novel scheme based on a specific level set ghost fluid method and an implicit-explicit (IMEX) flux splitting is proposed to overcome this timestep restriction. A fully implicit narrow band around the sharp phase interface is combined with a splitting of the convective and acoustic phenomena away from the interface. In this part of the domain, the IMEX Runge-Kutta time discretization and the high order discontinuous Galerkin spectral element method are applied to achieve high accuracies in the bulk phases. It is shown that for low Mach numbers a significant gain in computational time can be achieved compared to a fully explicit method. Applications to typical droplet dynamic phenomena validate the proposed method and illustrate its capabilities.
XStar: a software system for handling taxi trajectory big data
Authors: Li Xiang , Mango Joseph , Song Jiajia , Zhang Di 
Published: July 2021

AbstractAdvances in positioning and communicating technologies make it possible to collect large volumes of taxi trajectory data, quickly providing a complete picture of the ground traffic systems and thus being applied to different fields. However, there are still challenges for data users to handle such big data. In view of this, we have developed a software system named XStar to deal with trajectory big data. Its core is a scalable index and storage structure. Based on it, raw data can be saved in a more compact scheme and accessed more efficiently. A real taxi trajectory dataset is employed to demonstrate its performance. In general, XStar facilitates processing and analyzing trajectory data affordably and straightforwardly. Since its release in Jan. 2019, it has received downloads of over 4000 by May 2021. More analytical functions are being developed.
Interactive Web-Based Annotation of Plant MicroRNAs with iwa-miRNA
Authors: Zhang Ting , Zhai Jingjing , Zhang Xiaorong , Ling Lei , Li Menghan , Xie Shang , Song Minggui , Ma Chuang 
Published: July 2021

Abstract
MicroRNAs (miRNAs) are important regulators of gene expression. The large-scale detection and profiling of miRNAs have been accelerated with the development of high-throughput small RNA sequencing (sRNA-Seq) techniques and bioinformatics tools. However, generating high-quality comprehensive miRNA annotations remains challenging due to the intrinsic complexity of sRNA-Seq data and inherent limitations of existing miRNA prediction tools. Here, we present iwa-miRNA, a Galaxy-based framework that can facilitate miRNA annotation in plant species by combining computational analysis and manual curation. iwa-miRNA is specifically designed to generate a comprehensive list of miRNA candidates, bridging the gap between already annotated miRNAs provided by public miRNA databases and new predictions from sRNA-Seq datasets. It can also assist users in selecting promising miRNA candidates in an interactive mode, contributing to the accessibility and reproducibility of genome-wide miRNA annotation. iwa-miRNA is user-friendly and can be easily deployed as a web application for researchers without programming experience. With flexible, interactive, and easy-to-use features, iwa-miRNA is a valuable tool for the annotation of miRNAs in plant species with reference genomes. We also illustrate the application of iwa-miRNA for miRNA annotation using data from plant species with varying genomic complexity. The source codes and web server of iwa-miRNA are freely accessible at http://iwa-miRNA.omicstudio.cloud/.
Evolutionary antagonisms and the progress of three categories of traits
Authors: Zakariya Nasser 
Published: July 2021

AbstractDarwin inThe Descent of Mandeliberates over the question of progress in relation to three categories of traits – aesthetic, moral and intellectual – attending to their interplay. The later formulations of Thomas Henry Huxley and Alfred Russel Wallace shift and reframe the terms for weighing together progress and the relationship across these traits, downplaying the role of aesthetic assessments. Huxley and Wallace invoke ‘antagonisms’ countering, respectively, ‘ethical progress’ and ‘cosmic process’, ‘humanity – the essentiallyhumanemotion’ and ‘physical and even intellectual race-improvement’. Thereafter, evolutionary antagonisms reappear – whether to endorse, dismiss or overcome them – and they remain relevant in evolutionary arguments, whether made explicit or left implicit. Following a thread of ongoing appeals to this interplay of traits and corresponding antagonisms invoking Huxley's 1893 lecture ‘Evolution and ethics’, implicit differences appear in the treatment of aesthetic, moral and intellectual development. These treatments maintain the progress that their own ethical systems represented, even while granting moral variation and conceding independent/alternative notions of the beautiful. They generally took as granted the uniformity of intellectual judgements, where evolutionary progress was both ethical and intellectual/scientific, even when speculating on the development of different types of mind. As characteristic of future-oriented visions of progress by the first decades of the twentieth century, sexual selection was subsumed under natural selection.
Generalizations of Douady’s magic formula
Authors: EPSTEIN ADAM , TIOZZO GIULIO 
Published: July 2021

AbstractWe generalize a combinatorial formula of Douady from the main cardioid to other hyperbolic components H of the Mandelbrot set, constructing an explicit piecewise linear map which sends the set of angles of external rays landing on H to the set of angles of external rays landing on the real axis.
A new species of Sclerocephalus with a fully ossified endocranium gives insight into braincase evolution in temnospondyls
Authors: Schoch Rainer R. , Sobral Gabriela 
Published: July 2021

AbstractThe late Paleozoic temnospondyl Sclerocephalus formed an aquatic top predator in various central European lakes of the late Carboniferous and early Permian. Despite hundreds of specimens spanning a wide range of sizes, knowledge of the endocranium (braincase and palatoquadrate) remained very insufficient in Sclerocephalus and other stereospondylomorphs because even large skulls had unossified endocrania. A new specimen from a stratigraphically ancient deposit at St. Wendel in southwestern Germany is recognized as representing a new taxon, S. concordiae new species, and reveals a completely ossified endocranium. The sphenethmoid was completely ossified from the basisphenoid to the anterior ethmoid region, co-ossified with the parasphenoid, and the basipterygoid joint was fully established. The pterygoid bears a slender, S-shaped epipterygoid, which formed a robust pillar lateral to the braincase. The massive stapes was firmly sutured to the parasphenoid. In the temnospondyl endocranium, character evolution involved various changes in the epipterygoid region, which evolved distinct morphologies in each of the major clades.UUID: http://zoobank.org/5e6d2078-eacf-4467-84cf-a12efcae7c0b
Plebiscitarianism Revisited: A Typology of Independence Referendums
Authors: Sanjaume-Calvet Marc 
Published: July 2021

AbstractThis article explores the strategic functions of independence referendums. These referendums are normally framed as popular decisions on statehood over a certain territory. However, I argue that the popular will does not always have the decisory function that plebiscitarian theories suggest. In fact, actual decision referendums are rare; often independence referendums are instead used strategically as a leverage and signalling tactic. The article is structured as follows. First, I propose two key criteria to classify independence referendums regarding actors and timing. Through the application of these criteria, I build a typology proposing four main uses of referendums: leverage, signalling, decision and ratification. Second, I focus on the specific case of leverage referendums. I argue that analyzing the outcomes of leverage referendums can provide some clues about why secessionists still call for these referendums even though they almost never result in internationally recognized statehood. Finally, I conclude by discussing the implications of my findings.
Feminist foreign policies (FFPs) as strategic narratives: Norm translation in Sweden, Canada, France, and Mexico
Authors: Zhukova Ekatherina , Rosén Sundström Malena , Elgström Ole 
Published: July 2021

AbstractDrawing on the IR theories of norm translation and strategic narratives, this article focuses on how states translate international norms to their own advantage by producing strategic narratives to advance their soft power ambitions abroad. Using the example of feminist foreign policy (FFP), the article compares Sweden, Canada, France, and Mexico in their attempts to translate international feminist norms into their countries’ strategic narratives. This comparison is based on three strategic narrative types (issue, national, and international system narratives) and two types of feminism (liberal, intersectional). Issue narratives reveal that Sweden and Mexico give more priority to social policies, while France and Canada emphasise the role of the market in addressing gender inequality. International system narratives demonstrate that Sweden and Mexico perceive global challenges as drivers of gender inequality, while France and Canada see gender inequality as a cause of global problems. National narratives show that Sweden and Mexico refer to other FFP countries to ‘back up’ their feminist initiatives, while France and Canada do not relate to other states. Finally, while liberal feminism dominates all four FFPs, each state either prioritises particular aspects of it (legal, market, security, rights-based) or incorporates elements from intersectional feminism.
Culture and institutions: a review of Joel Mokyr'sA Culture of Growth
Authors: Hodgson Geoffrey M. 
Published: July 2021

AbstractThis is a review of Joel Mokyr's fascinating book entitledA Culture of Growth.The work is summarized, noting its focus on Darwin-style evolutionary explanations of cultural change. But Mokyr's emphasis on cultural entrepreneurs and positive feedbacks in the procreation of ideas is insufficient to explain the origins of modern economic growth. Too much explanatory weight is placed on too few extraordinary people. It is argued that Mokyr's analysis should be extended, to bring the evolution of institutions, as well as the evolution of culture, into the picture at an additional level. The role of inter-state rivalry and exogenous shocks has also to be underlined. This kind of analysis can be developed within the framework of generalized Darwinism, which Mokyr himself adopts. This is a major and highly stimulating book.
Multiple input multiple output (MIMO) and fifth generation (5G): an indispensable technology for sub-6 GHz and millimeter wave future generation mobile terminal applications
Authors: Ishteyaq Insha , Muzaffar Khalid 
Published: July 2021

AbstractThe in-depth exploration in the future 5G technology symbolizes a revolution in technology for antenna designers to encounter the all time increasing need as well as demand for higher data rate wireless communications. The paper gives out an exhaustive review of the evolution and characteristics of the 5G spectrum allocations, the MIMO antenna design with regard to mutual coupling reduction techniques and safer user applications. It precisely covers almost all the aspects of 5G which mainly include the types of antenna designs and their performance parameters related to MIMO design. The paper also presents a brief description of massive MIMO technology for base station applications. The main aim of the paper is: (1) to emphasize the frequencies allocated for the 5G including sub-6 Ghz and mm-wave bands; (2) to underline the suitable antenna designs for MIMO applications for mobile devices and base stations; (3) to highlight the mutual coupling effects in MIMO designs and its reduction techniques; (4) to consider the gaps in the literature and the challenges for reducing SAR effects for the safety of the users. This review paper has been an attempt to explore the evolution of 5G bands and antenna designs for 5G applications, comparison based on the literature, and the techniques implemented for enhancing the MIMO antenna performances.
Wave, Tide and Topographical Controls on Headland Sand Bypassing
Authors: King E. V. , Conley D. C. , Masselink G. , Leonardi N. , McCarroll R. J. , Scott T. , Valiente N. G. 
Published: July 2021

AbstractEmbayed beaches separated by irregular rocky headlands represent 50% of global shorelines. Quantification of inputs and outflows via headland bypassing is necessary for evaluating long‐term coastal change. Bypassing rates are predictable for idealized headland morphologies; however, it remains to test the predictability for realistic morphologies, and to quantify the influence of variable morphology, sediment availability, tides and waves‐tide interactions. Here we show that headland bypassing rates can be predicted for wave‐dominated conditions, and depend upon headland cross‐shore length normalised by surf zone width, headland toe depth and spatial sediment coverage. Numerically modeled bypassing rates are quantified for 29 headlands under variable wave, tide and sediment conditions along 75 km of macrotidal, embayed coast. Bypassing is predominantly wave‐driven and nearly ubiquitous under energetic waves. Tidal elevations modulate bypassing rates, with greatest impact at lower wave energies. Tidal currents mainly influence bypassing through wave‐current interactions, which can dominate bypassing in median wave conditions. Limited sand availability off the headland apex can reduce bypassing by an order of magnitude. Bypassing rates are minimal when cross‐shore length >5 surf zone widths. Headland toe depth is an important secondary control, moderating wave impacts off the headland apex. Parameterisations were tested against modeled bypassing rates, and new terms are proposed to include headland toe depth and sand coverage. Wave‐forced bypassing rates are predicted with mean absolute error of a factor 4.6. This work demonstrates wave‐dominated headland bypassing is amenable to parameterization and highlights the extent to which headland bypassing occurs with implications for embayed coasts worldwide.
Seasonal Variations in Molecular Size of Chromophoric Dissolved Organic Matter From the Lower Changjiang (Yangtze) River
Authors: Zhao Lingbin , Gao Lei , Guo Laodong 
Published: July 2021

AbstractLarge world rivers and their dissolved organic matter (DOM) fluxes could regulate ecosystem function and biogeochemical processes in coastal marine environments. Knowledge about the seasonal variations in composition and molecular size of DOM remains scarce but is important to a better understanding of the role of river fluxes. Monthly time‐series (July 2018 to June 2019) surface water samples were collected from the lower Changjiang (Yangtze) River, one of the largest world rivers, for the measurements of both dissolved organic carbon (DOC) and chromophoric dissolved organic matter (CDOM) to elucidate seasonal changes in their abundance, optical properties, and molecular size distributions among the <1 kDa, 1–3 kDa, 3–10 kDa, and 10 kDa–0.7 μm size fractions. On average, the <1 kDa low‐molecular weight DOM made up about two thirds of the bulk CDOM, leaving the other one third in the 1 kDa–0.7 μm size fraction. Optical properties and molecular size of DOM transported by the Changjiang River had an evident seasonality. In general, DOM exported from the Changjiang River can be characterized as lower DOC, lower aromaticity, and lower colloidal abundance compared to other world rivers. Together with available literature data, our results show that world rivers with higher/lower DOC concentrations and higher/lower aromaticity also contain more/less colloidal (>1 kDa) DOM. Our year‐long time‐series study provides additional valuable baseline data for a better understanding of seasonal changes in the abundance, composition, and molecular weight distribution of DOM from the lower Changjiang River and the potential impacts on the biogeochemical cycling of DOM in the adjacent estuarine, coastal, and shelf areas.
Forecasting the Gulf Stream Path Using Buoyancy and Wind Forcing Over the North Atlantic
Authors: Silver Adrienne , Gangopadhyay Avijit , Gawarkiewicz Glen , Taylor Arnold , Sanchez‐Franks Alejandra 
Published: July 2021

AbstractFluctuations in the path of the Gulf Stream (GS) have been previously studied by primarily connecting to either the wind‐driven subtropical gyre circulation or buoyancy forcing via the subpolar gyre. Here we present a statistical model for 1 year predictions of the GS path (represented by the GS northern wall—GSNW) betweenW andW incorporating both mechanisms in a combined framework. An existing model with multiple parameters including the previous year's GSNW index, center location, and amplitude of the Icelandic Low and the Southern Oscillation Index was augmented with basin‐wide Ekman drift over the Azores High. The addition of the wind is supported by a validation of the simpler two‐layer Parsons‐Veronis model of GS separation over the last 40 years. A multivariate analysis was carried out to compare 1‐year‐in‐advance forecast correlations from four different models. The optimal predictors of the best performing model include: (a) the GSNW index from the previous year, (b) gyre‐scale integrated Ekman Drift over the past 2 years, and (c) longitude of the Icelandic Low center lagged by 3 years. The forecast correlation over the 27 years (1994–2020) is 0.65, an improvement from the previous multi‐parameter model's forecast correlation of 0.52. The improvement is attributed to the addition of the wind‐drift component. The sensitivity of forecasting the GS path after extreme atmospheric years is quantified. Results indicate the possibility of better understanding and enhanced predictability of the dominant wind‐driven variability of the Atlantic Meridional Overturning Circulation and of fisheries management models that use the GS path as a metric.
Causes of the Northern Gulf of Guinea Cold Event in 2012
Authors: Da‐Allada C. Y. , Agada J. , Baloïtcha E. , Hounkonnou M. N. , Jouanno J. , Alory G. 
Published: July 2021

AbstractParticularly cool sea surface temperatures (SSTs) were observed in 2012 along the Northern Gulf of Guinea coast. This strong cooling event was seen from February to June and reached maxima in the coastal upwelling areas: SST anomalies of −1°C were observed in Sassandra Upwelling area in Côte d'Ivoire (SUC, situated east of Cape Palmas) and SST anomalies of −0.5°C were observed in Takoradi Upwelling area in Ghana (TUG, located east of Cape Three Points). In SUC and TUG regions, the 2012 decrease in SST was the coldest event recorded over the 1990–2018 period (29 years). From the analysis of regional simulations, we show that the mechanisms behind this SST decrease differ in the two regions. In the SUC region, we identify changes in both zonal advection (related to zonal SST gradient changes) and increased vertical mixing as the main drivers of the anomalous cooling. The anomalous vertical mixing is linked to increased vertical shear of the zonal current in response to the Guinea Current strengthening. In the TUG region, acceleration of the southward advection of the surface water, due to the intensification of the meridional Ekman current generated by the strengthening of the zonal wind stress, was identified as the major cause of the SST anomalous cooling.