bluuebunny/crossref_metadata_2025_split huggingface dataset:
Introduction
Authors: Xie Chaoqun , Li Bingyun 
Published: October 2021

Abstract
Human beings are now living in social media, for various social media apps or platforms are becoming more and more indispensable to their everyday livelihood and social practice. In fact, social media users are dwelling in two life-worlds and living two lives, online and offline, shuttling back and forth between them. China, with nearly one billion internet users, has formed the world’s largest digital society, contributing to several questions that can be raised concerning the essence of Chinese social media. After presenting some basic statistics and facts about Chinese social media, this introduction, inspired by Bakhtin’s (1981a, 1981b) views on carnival and Heidegger’s (1966, 1977, 2002, 2010, 2012) thought-provoking insights into technology, explores the essence of Chinese social media as carnival, as revealing and concealing, and as positionality, with a view to questioning the essence of human-technology relations and to thinking how it is possible to stay both connected and disconnected in an interconnected life-world.
Mirror-like address practice in Arabic-medium classroom
interaction
Authors: Piippo Irina 
Published: October 2021

Abstract
This paper examines address inversion in classroom
interactions in Arabic. Address inversion, found in various
languages, is an address practice where the speaker addresses the
recipient with the same address term that the recipient would
normally use to call the speaker. Inverted address is a
denotationally incongruent, asymmetric address used by speakers who
claim cultural seniority. By analyzing the position of address
inversion in interaction (in turns, sequences, and activities) and
utilizing the notion of stance, this paper examines
the ways in which address inversion manages intersubjectivity by
constructing the shifting relationships between the participants in
classroom interaction. The data are classroom interactions video
recorded in Palestinian territories.
Decision-making in salesperson–customer interaction
Authors: Niemi Jarkko , Pullins Ellen , Kaski Timo 
Published: October 2021

Abstract
Decisions are often made in a two-part sequence,
consisting of a proposal by one party and an aligning response from
others. While this sequence is well established, less is known about
the preparatory work that may precede it. This chapter studies
decision-making in the context of complex service selling. It
demonstrates that and how salespeople and a prospective customer
collaboratively and incrementally establish a decision over a
multi-sequence course of action, in which a sequence implements a
stage and the next sequence implements a next step or outcome of the
prior stage. Thus, the chapter sheds light on how the groundwork for
a proposal is laid. The conversation analytic study is based on 17
video-recorded business-to-business sales meetings in Finland.
Co-presence during lapses
Authors: Vatanen Anna 
Published: October 2021

Abstract
This study examines video-recorded, naturally occurring
Finnish dyads focusing on lapses (inter-sequential silences). During
most lapses, participants undertake bodily activities or behaviors
(Hoey 2015). Adding to
previous work, this study describes “comfortable” silences where
participants share the moment with no bodily activities or mutual
gaze, inhabiting the silence with simple co-presence. The analysis
suggests that instead of the gathering/encounter dualism,
participant behavior in social situations is better described as a
continuum of orientations. Also during the “comfortable” silences,
understanding of behavioral involvements is intersubjectively
created and maintained. Thus, even outside of sequences that
allegedly create and maintain the “architecture of
intersubjectivity” (Heritage
1984), social organization is jointly negotiated and
achieved, most importantly by mutual monitoring and reciprocation of
(bodily) orientations.
Identification of bilingual children with Specific Language Impairment in France
Authors: de Almeida Laetitia , Ferré Sandrine , Morin Eléonore , Prévost Philippe , dos Santos Christophe , Tuller Laurie , Zebib Racha , Barthez Marie-Anne 
Published: October 2021

Abstract
We report on the usefulness of three LITMUS tools in distinguishing bilingual children with SLI (Bi-SLI) from bilingual children with typical development (Bi-TD), in France: LITMUS-QU-NWR-FR (non-word repetition), LITMUS-SR-FR (sentence repetition), and LITMUS-PABIQ (parental questionnaire). 82 bilingual children, aged 5–8, who had all been exposed to both French and either Arabic, Portuguese or Turkish, recruited both in ordinary schools and in SLP practices, were divided into Bi-TD (n = 61) and Bi-SLI (n = 21) groups based on parental questionnaire (LITMUS-PABIQ) information and standardized language scores in each language. Monolingual controls included 17 children with SLI and 37 TD children. NWR and SR significantly distinguished between the Bi-TD and the Bi-SLI children, and there was minimal impact of different factors related to bilingual development on children’s performance.
The influence of different first languages on LITMUS nonword-repetition and sentence repetition in second language French and second language German
Authors: Chilla Solveig , Hamann Cornelia , Prévost Philippe , Abed Ibrahim Lina , Ferré Sandrine , dos Santos Christophe , Zebib Racha , Tuller Laurice 
Published: October 2021

Abstract
The study investigates the appropriateness of the French and German LITMUS–Sentence Repetition (LITMUS–SR) and the LITMUS–Quasi–Universal–Nonword–Repetition task (LITMUS–QU–NWR) for the assessment of bilingual children with diverse language backgrounds. We examine the quantitative and qualitative performance of 117 bilingual typically developing children (BiTD), and 34 bilingual children with Specific Language Impairment (BiSLI) with Arabic, Portuguese and Turkish as their first language (L1). These data are compared to 47 monolingual typically developing children (MoTD). Given the typological and linguistic differences between the languages involved, the comparisons of the performance of bilingual and monolingual children in two typologically different L2s are intended to provide a baseline for typical L2 development and may shed light on morphosyntactic difficulties that are due to cross–linguistic influence.
Projection methods for high numerical aperture phase retrieval
Authors: Hieu Thao Nguyen , Soloviev Oleg , Luke Russell , Verhaegen Michel 
Published: October 2021

Abstract
We develop for the first time a mathematical framework in which the class of projection algorithms can be applied to high numerical aperture (NA) phase retrieval. Within this framework, we first analyze the basic steps of solving the high-NA phase retrieval problem by projection algorithms and establish the closed forms of all the relevant projection operators. We then study the geometry of the high-NA phase retrieval problem and the obtained results are subsequently used to establish convergence criteria of projection algorithms in the presence of noise. Making use of the vectorial point-spread-function (PSF) is, on the one hand, the key difference between this paper and the literature of phase retrieval mathematics which deals with the scalar PSF. The results of this paper, on the other hand, can be viewed as extensions of those concerning projection methods for low-NA phase retrieval. Importantly, the improved performance of projection methods over the other classes of phase retrieval algorithms in the low-NA setting now also becomes applicable to the high-NA case. This is demonstrated by the accompanying numerical results which show that available solution approaches for high-NA phase retrieval are outperformed by projection methods.
On-chip orbital angular momentum detection using a catenary grating metasurface
Authors: Chen Panpan , Chen Cong , Xi Jianxin , Du Xiang , Liang Li , Mi Jiajia , Shi Jianping 
Published: October 2021

Abstract
Vortex lights with optical orbital angular momentum have shown great promise in the areas of optical communication, optical manipulation and quantum optics. However, traditional methods for detecting the topological charge of vortex beams, such as interference and diffraction, are still challenging in miniaturization of the detection system and perfect matching of wave vectors. Here, a detection approach is proposed for measuring the topological charge of Laguerre–Gaussian (LG) vortex beams based on a catenary grating metasurface. According to the wave vector matching principle, the LG vortex beam can be coupled into surface plasmon polariton (SPP) waves propagating in different directions by using the well-designed catenary grating structure. The positive and negative topological charges can be distinguished by different arrangement of the catenary gratings. Additionally, the propagation angle of the launched SPP waves increases with the value of the topological charge. We believe that the proposed device would have broad application prospects in high compact photonic integrated circuits.
Electronic structure of molecular hydrogen in MoS2 nanopores
Authors: Kendjy Murilo , da Rosa Andréia L. , Frauenheim Th. 
Published: October 2021

Abstract
Atom controlled sub-nanometer MoS2 pores have been recently fabricated with promising applications, such gas sensing, hydrogen storage and DNA translocation. In this work we carried out first-principles calculations of hydrogen adsorption in tiny MoS2 nanopores. Some of the pores show metallic behaviour whereas others have a sizeable band gap. Whereas adsorption of molecular hydrogen on bare pores are dominated by physisorption, adsorption in the nanopores show chemisorption behaviour with high selectivity depending on the pore inner termination. Finally, we show that functionalization with copper atoms leads to does not improve dignificantly the adsorption energies of selected pores.
A universal and fast method to solve linear systems with correlated coefficients using weighted total least squares
Authors: Wurm Matthias 
Published: October 2021

Abstract
Especially in metrology and geodesy, but also in many other disciplines, the solution of overdetermined linear systems of the form

A
x

≈

b

with individual uncertainties not only in

b

but also in

A

is an important task. The problem is known in literature as weighted total least squares. In the most general case, correlations between the elements of

A

,

b

exist as well. The problem becomes more complicated and can—except for special cases—only be solved numerically. While the formulation of this problem and even its solution is straightforward, its implementation—when the focus is on reliability and computational costs—is not. In this paper, a robust, fast, and universal method for computing the solution of such linear systems as well as their covariance matrix is presented. The results were confirmed by applying the method to several special cases for which an analytical or numerical solution is available. If individual coefficients can be considered to be free of errors, this can be taken into account in a simple way. An implementation of the code in MATLAB is provided.
A 3D nano scale IGA for free vibration and buckling analyses of multi-directional FGM nanoshells
Authors: Cuong-Le Thanh , Nguyen Khuong D , Lee Jaehong , Rabczuk Timon , Nguyen-Xuan H 
Published: October 2021

Abstract
This article explores a three-dimensional solid isogeometric analysis (3D-IGA) approach based on a nonlocal elasticity theory to investigate size effects on natural frequency and critical buckling load for multi-directional functionally graded (FG) nanoshells. The multi-directional FG material uses a power law rule with three power exponent indexes concerning three parametric coordinates. Nanoshell’s geometries include the square plate, cylindrical and spherical panels with the side length considered in a nanoscale with various thickness ratios. Because 3D-IGA utilizes an approximation of NURBS basic functions to integrate from geometry modeling to discretized domain, it does not require any hypotheses for deformations distribution and stress component through the plate’s thickness. Therefore, the results from the 3D solution are obtained accurately with any thickness ratio of the shells. The numerical solutions are verified by those published in several pieces of literature to determine the current approach’s accuracy and reliability. After a convergence solution is examined, a quartic NURBS basic function can yield ultra-converged and high-accurate results with a low computational cost. The findings show the size effect parameters which significantly impact the frequencies and the critical buckling factors of the multi-directional FG nanoshells. Generally, increases in the size effect parameters will cause declines in the frequencies and the critical buckling factors of the nanoshells.
A variable stiffness morphing skin: preparation and properties
Authors: Ren Xiaoming , Zhu Guangming 
Published: October 2021

AbstractIn the course of flight, morphing skins play an important role in morphing aircrafts. Shape memory polymer (SMP) with variable stiffness performance is a good candidate material for skin. In this paper, a series of SMP morphing skins were prepared from hydro-epoxy resin, carboxyl-terminated butadiene acrylonitrile (CTBN) and maleic anhydride. By adjusting molecular weight and content of CTBN, in-plane properties and out-of-plane properties of morphing skins can be adjusted. Due to the in-plane tensile stress acting on the skin during flight, tensile test was carried out to study its in-plane performance. After testing, skin can resist maximum in-plane tensile strength of 63.7 MPa. As for the out-of-plane performance of the skin, shape memory test was studied in this paper. All morphing skins have 100% shape fixity rate (Rf) and fast shape recovery rate (Rr). When toughened by CTBN of 10% of 4000 molecular weight with a mass fraction, the skin can recover its out-of-plane deformed shape in 33 s. The SMP skins were proved to be a promising candidate for morphing skins.
Probing the Large-scale Structure of the Universe Through Gravitational Wave Observations
Authors: Shao Xiaoyun , Cao Zhoujian , Fan Xilong , Wu Shichao 
Published: October 2021

Abstract
The improvements in the sensitivity of the gravitational wave (GW) network enable the detection of several large redshift GW sources by third-generation GW detectors. These advancements provide an independent method to probe the large-scale structure of the universe by using the clustering of the binary black holes (BBHs). The black hole catalogs are complementary to the galaxy catalogs because of large redshifts of GW events, which may imply that BBHs are a better choice than galaxies to probe the large-scale structure of the universe and cosmic evolution over a large redshift range. To probe the large-scale structure, we used the sky position of the BBHs observed by third-generation GW detectors to calculate the angular correlation function and the bias factor of the population of BBHs. This method is also statistically significant as 5000 BBHs are simulated. Moreover, for the third-generation GW detectors, we found that the bias factor can be recovered to within 33% with an observational time of ten years. This method only depends on the GW source-location posteriors; hence, it can be an independent method to reveal the formation mechanisms and origin of the BBH mergers compared to the electromagnetic method.
Deep learning based surrogate models for first-principles global simulations of fusion plasmas
Authors: Dong G. , Wei X. , Bao J. , Brochard G. , Lin Z. , Tang W. 
Published: October 2021

Abstract
The accurate identification and control of plasma instabilities is important for successful fusion experiments. First-principle simulations that can provide physics-based instability information such as the mode structure are generally not fast enough for real-time applications. In this work, a workflow has been presented to develop deep-learning based surrogate models for the first-principle simulations using the gyrokinetic toroidal code (GTC). The trained surrogate models of GTC (SGTC) can be used as physics-based fast instability simulators that run on the order of milliseconds, which fits the requirement of the real-time plasma control system. We demonstrate the feasibility of this workflow by first creating a big database from GTC systematic linear global electromagnetic simulations of the current-driven kink instabilities in DIII-D plasmas, and then developing SGTC linear internal kink instability simulators through supervised training. SGTC linear internal kink simulators demonstrate predictive capabilities for the mode instability properties including the growth rate and mode structure.
Meaningful Learning of Work and Energy Materials Through Implementation of Basic Locomotor Movements in Basketball Games for High School Students
Authors: Sari E F N , Asmawi M , Dlis F , Susanti D , Siregar N M 
Published: October 2021

AbstractIt is necessary to bring up meaningful learning, especially on work and energy material. Meaningful learning can be achieved through direct experience. Physics learning can be integrated through sports and health physical education learning, so it is possible to bring up meaningful learning. So this study aims to determine the effect of meaningful learning on the material of work and energy through direct experience in basic locomotor movement activities in basketball games on Physical Education, Sports and Health subjects. This research method is a quasi-experimental design with a Post-test only Control Group Design. The average post-test scores for the experimental and control classes were 84.34 and 77.33, which means there is a difference between classes that learn through direct experience and conventional ones. The independent sample t-test results give the value of Sig. of 0.017 that inform there is a significant difference in students’ understanding of the concept of work and energy between classes that learn through direct experience with conventional ones. The interviews showed an average score of 89.06% of students indicated that they had experienced a meaningful learning process. So it can be concluded that meaningful learning in the learning process becomes the main focus that teachers should implement. Meaningful learning of the material of work and energy through direct experience in basic locomotor movement activities in basketball games in Physical Education, Sports and Health is proven to be better for student learning outcomes. In addition, through meaningful learning that has been done, it also informs that students become easier to understand the concept of the material through authentic experiences in everyday life.
The Effect of The Use of Harmonic Movement PhET Interactive Simulation in Online Learning Process on Mastering the Concept of High School Students
Authors: Sunaryo  , Rustana C E , Raihanati  , Khalifah S N , Sugihartono I 
Published: October 2021

Abstract
This research aimed to determine the effect of using the PhET Interactive Simulation in the online learning to the conceptual mastery ability of high school students. The method used in this research was an experimental method with the one group pretest posttest research design. The research sample was selected using purposive sampling technique from a population of the Science and Mathematics Group Students of Public High School (SMAN) 1, Jakarta. The research instrument used was an objective test of students’ mastery of concepts that had been tested for validity, reliability, difficulty level, and distinguishing power. Based on the results of data processing, the average of pretest and posttest scores were 47.42 and 73.55, respectively, and the N-gain of 0.51 with the medium category. The analysis result shown that count (10.909) was larger than table (2.042) which indicated that the null hypothesis (H0) was rejected and the alternative hypothesis (HA) was accepted. Meanwhile, the strength of the effect of using the PhET simulation in the Online Learning Process to Mastery the Concept of Harmonic Motion for High School Students on a numeric scale was categorized high with an effect size value of 1.79. Thus, it can be concluded that the PhET simulation can be applied to mastery of the physics concept of Harmonic Motion in the online learning process of high school students.
The Development of Virtual Laboratory Assisted by Flash and PhET to Support Distance Learning
Authors: Serevina V , Kirana D 
Published: October 2021

Abstract
This research aims to develop and produce a virtual laboratory, assisted by Adobe Flash and Pet simulation that is suitable for use as a learning resource and can help support physics practicum during the distance learning process on the fluid material for students of class XI in high school. The research method used is research and development method to ADDIE model (Analysis, Design, Development, Implementation, Evaluation). This virtual laboratory is made with the help of Adobe Flash applications and PhET simulations. Based on the results of needs analysis in several high schools in Jakarta and Bogor with total of 135 respondents, 69.6% of respondents stated that they did not do physics practicum during distance learning, 71.1% of respondents said they could better understand physics with virtual laboratory, 68.1% of respondents said they needed a virtual laboratory for fluid material, and 88.1% stated that virtual laboratory on fluid material practicum helped understand the material during distance learning. A feasibility test of virtual laboratory on fluid material practicum assisted by Adobe Flash and PhET simulation was validated by material and media experts using a validation test questionnaire. Then, trials were carried out by students and teachers of class XI in high school.
Project Based Learning (PjBL) Learning Model in Science Learning: Literature Review
Authors: Nurhidayah I J , Wibowo F C , Astra I M 
Published: October 2021

Abstract
The world of education today not only requires students to be experts in the cognitive realm, but is required to be able to achieve 21st century skills. Based on the analysis and synthesis of journals, the appropriate learning model to face the 21st century is the Project Based Learning (PjBL) learning model. The purpose of this article is to identify PjBL from the characteristics, effectiveness and implementation aspects of science learning. This structured review reviewed 20 articles on PjBL for science learning based on the available Scopus database reference from 2017 to 2021. The data obtained were analyzed using content analysis methods. The results showed that on average PjBL can be categorized as a learning model that can improve student learning outcomes in science learning and train students in problemving (critical thinking). The review reveals that PjBL has an influence on student learning, especially in science learning. From this article, it can be concluded and can be recommended three recommendations related to the essential success of PjBL in schools.