bluuebunny/crossref_metadata_2025 huggingface dataset:
Community Tradition about Center Rope Care Using Powder and Oil For New-Born Babies
Authors: Sulfianti Sulfianti , Ismawati Ismawati
Published: June 2021

Newborn care is a process of deeds, ways of caring for and nurturing. The most important care of the umbilical cord is to make sure the umbilical cord and the area around it is always clean and dry and avoid infection. Always wash your hands using clean water and soap, before cleaning the umbilical cord. This study aims to analyze in depth the care of the umbilical cord using powder and oil in newborns in the Ajangale Community Health Center, Bone Regency. This type of research used in this research is qualitative research. Qualitative research is a study aimed at describing and analyzing phenomena, events, social activities, attitudes, beliefs, perceptions, thoughts of people individually or in groups. This research was conducted in the work area of ​​Arenaale Public Health Center, Bone District. The number of research subjects was 10 people. The results showed that the people of Ajangale Subdistrict in the care of newborns, especially the tradition of umbilical cord care using powder, were still practiced by several people who were believed to be able to accelerate dryness and detachment of the umbilical cord. There are still people in Ajangale who perform umbilical cord care using powder and oil which are considered to be able to accelerate the dryness of the umbilical cord and quickly release it.
NILAI BUDAYA PADA ANTOLOGI PUISI JUKUNG WAKTU KARYA ABDURRAHMAN EL HUSAINI
Authors: DESY HIDAYATI
Published: June 2021

Sastra adalah suatu pekerjaan seni kreatif yang objeknya adalah manusia dan kehidupanya dengan menggunakan bahasa sebagai media. Kata sastra atau kesustraan dapat ditemui dalam sejumlah pemakaian yang berbeda-beda. Hal ini menggambarkan bahwa sastra bukanlah nama dari sesuatu yang sederhana, tetapi ia merupakan satu istilah “Payung” yang meliputi sejumlah kegiatan yang berbeda, ia bisa dihubungkan dengan suatu kegiatan penyimakan atau pembacaan naskah majalah atau buku, sastra juga berkaitan dengan sebuah budaya, salah satunya adalah budaya Banjar yang mana terdapat beberapa karya yang dimiliki oleh salah satu sastrawan Banjar yaitu Abdurrahman El Husaini tersebut, pada karya beliau banyak mengandung nilai budaya dan cerita budaya Banjar, nilai budaya dapat digunakan sebagai media di tiap daerah untuk menyampaikan nilai kepercayaan, gagasan, sensasi, atau perasaan dengan cara seefektif mungkin untuk objek tersebut. Budaya dan seni pun menjadi kesatuan yang tak terpisahkan karena akan menjadi simbol dari tiap kekhasan nilai budaya khsususnya budaya Banjar yang memiliki keragaman bukan hanya dari tutur kata, agama yang saling hormat menghormati, melainkan juga tutur bahasa dan kebiasaan dari budaya Banjar yang menjadi ciri khas masyarakat Banjar, misalnya masyarakat Banjar dikenal sebagai pribadi yang santun, lemah lembut, serta saling peduli dengan orang lain.Pendekatan yang digunakan dalam penelitian ini adalah pendekatan antropologi sastra. Hal ini dilakukan mengingat bahwa nilai budaya merupakan pendekatan yang menekankan pada sebuah makna terhadap seni tradisional yang dapat dilihat melalui tertulis dan lisan pada bahasa tersebut dalam suatu karya sastra, khususnya sastra yang ada di daerah dalam tujuan mengenalkan dan memperkaya sebuah sastra satrawan dalam dokumentasi buku yang ditulisnya tersebut.
MENGEMBANGKAN MINAT BACA ANAK USIA DINI MELALUI KEGIATAN LITERASI PERPUSTAKAAN DI PAUD HASANUDDIN MAJEDI BANJARMASIN
Authors: DESY HIDAYATI
Published: June 2021

Abstrak

Sekolah sebagai salah satu lembaga pendidikan untuk belajar. Sekolah sangat berperan penting dalam bidang pendidikan dan tempat yang paling efektif dalam proses belajar. Pendidikan merupakan hal utama yang dilakukan oleh setiap bangsa untuk mencapai kemajuan. Semakin berkualitas suatu bangsa itu semakin memberikan efek positif bagi kemajuan bangsa dan negara yang merupakan suatu proses degnan tujuan untuk mengembangkan sikap, tingkah laku dan membantu dalam pembentukan karakter serta mencerdaskan setiap individu dengan membaca akan memperoleh berbagai macam informasi. Upaya orang tua akan lebih optimal akan adanya dukungan dari pihak lain, seperti lingkungan keluarga dan lingkungan sekolah.Tujuan yang hendak dicapai dari program ini adalah: Untuk mengetahui bagaimana cara mengembangkan minat baca anak usia dini melalui kegiatan literasi perpustakaan di PAUD Hasanuddin Majedi Banjarmasin. Sedangkan metode pelaksanaan dengan bersosialisasi langsung kepada guru PAUD dan anak-anak yang ada di sekolah tersebut, dengan membawa beberapa bahan dasar buku cerita bergambar yang disukai anak-anak. Adapun hasil yang diperoleh adalah Anak yang terbiasa melihat buku dan kebiasaan membaca dari orang tuanya akan membuat mereka gemar membaca. Simpulan dari pengabdian ini diperlukan usaha keras untuk mendorong anak untuk berkenalan dengan perpustakaan dapat dilakukan di rumah melalui pembuatan perpustakaan keluarga.
The Luminous and Double-peaked Type Ic Supernova 2019stc: Evidence for Multiple Energy Sources
Authors: Gomez Sebastian , Berger Edo , Hosseinzadeh Griffin , Blanchard Peter K. , Nicholl Matt , Villar V. Ashley
Published: June 2021

We present optical photometry and spectroscopy of SN 2019stc (=ZTF19acbonaa), an unusual Type Ic supernova (SN Ic) at a redshift of z = 0.117. SN 2019stc exhibits a broad double-peaked light curve, with the first peak having an absolute magnitude of M

r
= −20.0 mag, and the second peak, about 80 rest-frame days later, M

r
= −19.2 mag. The total radiated energy is large, E
rad ≈ 2.5 × 1050 erg. Despite its large luminosity, approaching those of Type I superluminous supernovae (SLSNe), SN 2019stc exhibits a typical SN Ic spectrum, bridging the gap between SLSNe and SNe Ic. The spectra indicate the presence of Fe-peak elements, but modeling of the first light-curve peak with radioactive heating alone leads to an unusually high nickel mass fraction of f
Ni ≈ 0.31 (M
Ni ≈ 3.2 M
⊙). Instead, if we model the first peak with a combined magnetar spin-down and radioactive heating model we find a better match with M
ej ≈ 4 M
⊙, a magnetar spin period of P
spin ≈ 7.2 ms, and magnetic field of B ≈ 1014 G, and f
Ni ≲ 0.2 (consistent with SNe Ic). The prominent second peak cannot be naturally accommodated with radioactive heating or magnetar spin-down, but instead can be explained as circumstellar interaction with ≈0.7 M
⊙ of hydrogen-free material located ≈400 au from the progenitor. Accounting for the ejecta mass, circumstellar shell mass, and remnant neutron star mass, we infer a CO core mass prior to explosion of ≈6.5 M
⊙. The host galaxy has a metallicity of ≈0.26 Z
⊙, low for SNe Ic but consistent with SLSNe. Overall, we find that SN 2019stc is a transition object between normal SNe Ic and SLSNe.
Electronic Spectroscopy of Anthracene Cations and Protonated Anthracene in the Search for Carriers of Diffuse Interstellar Bands
Authors: Meyer Miriam , Martini Paul , Schiller Arne , Zappa Fabio , Krasnokutski Serge A. , Scheier Paul
Published: June 2021

The helium-tagging technique was employed to record absorption spectra of cold anthracene cations and protonated anthracene. The evaluation of the spectra of the chromophore with a different number of attached He atoms allows getting the precise band positions of the molecular ions in the gas phase. The positions of the two most intense bands of anthracene, suitable for astrophysical detection, were found to be λ
max = 3478.9 ± 1.8 Å and λ
max = 7068.9 ± 5.7 Å. A considerable shift of the red band position compared to a previous measurement was attributed to a temperature effect. No coincidence of the absorption bands in astrophysical observational spectra was found. This allows estimating the upper limit for the abundance of anthracene cations per H nuclei <10−9 along the HD 183143 line of sight. We discuss possible reasons for such a low abundance of this molecular ion.
DNA-barcoding and a new data about the karyotype of Myotis petax (Chiroptera, Vespertilionidae) in the Russian Far East
Authors: Gorobeyko Uliana V. , Kartavtseva Irina V. , Sheremetyeva Irina N. , Kazakov Denis V. , Guskov Valentin Yu.
Published: June 2021

The DNA-barcoding and chromosomal study of the eastern water bat, Myotis petax Hollister, 1912, from the earlier unexplored localities in the Russian Far East are carried out. The COI barcoding obtained for 18 from a total of 19 individuals captured in five localities in the Russian Far East showed the low nucleotide variability with the prevalence of the central, the most abundant haplotype. The chromosomal characteristics of eight M. petax specimens (2n = 44, NFa = 52) in the Russian Far East are clarified. The number and localization of NOR in karyotype of M. petax is described at the first time and differ from distributional patterns of NOR in the sibling species M. daubentonii Kuhl, 1819 that can be used as diagnostic feature. The considerable intraspecific variability in the distribution of heterochromatin material revealed is not typical of the genus Myotis, but it has been found in other species of the family Vespertilionidae.
Homologous series by Nikolai Vavilov in the phylogeny of Homoptera
Authors: Gavrilov-Zimin Ilya A.
Published: June 2021

The paper briefly discusses the most impressive examples of the Nikolai Vavilov’s “Law of homologous series” in the evolution of one of the largest animal groups, homopterous insects, which comprise about 65,000 recent species in the world fauna. Different taxonomic and phylogenetic characters (morpho-anatomical, cytogenetic, reproductive and others) are considered at the taxonomic ranks of the order, suborder, superfamily and family.
Genome size variation and karyotype diversity in eight taxa of Sorbus sensu stricto (Rosaceae) from China
Authors: Li Jiabao , Zhu Kailin , Wang Qin , Chen Xin
Published: June 2021

Eight taxa of Sorbus Linnaeus, 1753 sensu stricto (Rosaceae) from China have been studied karyologically through chromosome counting, chromosomal measurement and karyotype symmetry. Genome size was also estimated by flow cytometry. Six taxa, S. amabilis Cheng ex T.T.Yu et K.C.Kuan, 1963, S. hupehensis var. paucijuga (D.K. Zang et P.C. Huang, 1992) L.T. Lu, 2000, S. koehneana C.K. Schneider, 1906, S. pohuashanensis (Hance, 1875) Hedlund, 1901, S. scalaris Koehne, 1913 and S. wilsoniana C.K. Schneider, 1906 are diploids with 2n = 34, whereas two taxa, S. filipes Handel-Mazzetti,1933 and S. ovalis McAllister, 2005 are tetraploid with 2n = 68. In general, the chromosome size is mainly small, and karyotypes are symmetrical with predominance of metacentric chromosomes. Genome size variation of diploids and tetraploids is 1.401 pg –1.676 pg and 2.674 pg –2.684 pg, respectively. Chromosome numbers of S. amabilis and S. hupehensis var. paucijuga, and karyotype and genome size of eight taxa studied are reported for the first time. This study emphasised the reliability of flow cytometry in genome size determination to infer ploidy levels in Chinese native Sorbus species.
Taxonomy at Face Value: An assessment of entomological postage stamps as effective teaching aids for science educators
Authors: Nazari Vazrick
Published: June 2021

Entomological postage stamps are unique means of communication of science with the public and have been suggested as effective teaching tools in primary and secondary education. A survey of the taxonomic and other information contained on insect- and arachnid-themed stamps issued globally from 1891 to 2020 reveals that 30% of these stamps contain various errors and are scientifically unreliable. In addition, representations of insects are highly biased towards only two orders (Lepidoptera and Odonata), while other mega-diverse orders (e.g. Coleoptera, Diptera, Hymenoptera) are poorly represented or not represented at all. This phenomenon can negatively affect public perception of priorities in biodiversity and conservation. Standardization of taxonomic information on entomological stamps and implementation of rigorous quality control measures are encouraged to assure dissemination of accurate scientific information.
Les dynamiques émotionnelles du militantisme jihadiste : propositions méthodologiques sur leur repérage
Authors: Blom Amélie
Published: June 2021

Reconnaître l’importance des émotions pour la compréhension du militantisme armé implique également d’exercer la plus grande vigilance dans l’attribution à distance de motivations émotionnelles, procédé largement répandu dans l’étude de l’engagement jihadiste en raison de la difficulté à saisir les émotions en situation. L’une des façons de surmonter cet obstacle est d’analyser les dynamiques émotionnelles du militantisme armé à partir d’un questionnement sur les méthodes exploratoires et, plus spécifiquement, sur l’entretien biographique. Certes, celui-ci soulève des difficultés, mais il se révèle aussi d’une grande richesse pour peu que l’on adopte une démarche sensible à ce que l’interaction enquêteur.rice-enquêté.es fait à la compréhension des dynamiques émotionnelles du militantisme. L’expérience sensorielle et émotionnelle d’un ancien combattant jihadiste pakistanais, associée à un retour réflexif sur les émotions de l’observatrice, sert de point d’appui à une tentative de typologie des voies d’accès aux émotions dans le cadre des entretiens sociologiques.
Les mineurs non accompagnés : des adolescents venus d’ailleurs, citoyens de demain
Authors: Palazzi Stéphanie , Idir Hocine
Published: June 2021

Les mineurs non accompagnés souhaitent avant tout coller à ce qu’ils perçoivent comme la demande de l’autre, qu’il s’agisse de ceux qui mandatent au pays ou des éducateurs du pays d’accueil. Cela rend difficile tout travail d’élaboration psychique qui imposerait de baisser la garde. Cette contribution expose le dispositif proposé par une consultation hospitalière transculturelle dite de deuxième ligne aux mineurs non accompagnés. La première rencontre est structurée de façon à permettre au jeune qui est reçu de se déprendre des assignations dont les jeunes migrants sont l’objet et de reprendre la parole en son nom. Dans un deuxième temps la psychothérapie permettra au jeune de travailler sur les effets psychiques du parcours migratoire traumatique et sur son histoire dans un mouvement d’aller-retour entre deux temps et deux cultures, avant de s’engager dans la construction d’une identité d’avenir.
Le risque d’exclusivité imaginaire des adolescents hyperconnectés aux sites sectaires
Authors: Kaluaratchige Elizabeth
Published: June 2021

Cette étude sur les adolescents captés par les sites sectaires est fondée sur les expériences cliniques psychanalytiques. L’Internet, par la triple connexion : image, son et écrit, contrairement aux autres médias tels que la presse, la radio ou la télévision, fournit aux sites sectaires les outils technologiques pour captiver l’attention de l’adolescent. Le détenteur du site présente un idéal nocif et déroutant pour manipuler l’identification de l’adolescent. Dans l’isolement virtuel répétitif, il pourra facilement déraciner l’adolescent de son ordre symbolique et l’enfermer dans une servitude imaginaire régressive et dangereuse. Dans cette configuration clinique, ce n’est pas l’imaginaire seul qui cause le désastre, c’est aussi le défaut de la fonction de l’adulte comme témoin du langage. La prise en charge d’un adolescent capté par les sites virtuels sectaires passerait alors par la consolidation et la réactualisation de cette fonction afin d’inciter l’adolescent à cogiter , penser, raisonner et désirer, dans le champ virtuel mais visant sa vie symbolique dans la réalité.
Large-time behaviors of the solution to 3D compressible Navier-Stokes equations in half space with Navier boundary conditions
Authors: Wang Teng , Wang Yi
Published: June 2021

We are concerned with the large-time asymptotic behaviors towards the planar rarefaction wave to the three-dimensional (3D) compressible and isentropic Navier-Stokes equations in half space with Navier boundary conditions. It is proved that the planar rarefaction wave is time-asymptotically stable for the 3D initial-boundary value problem of the compressible Navier-Stokes equations in \begin{document}$ \mathbb{R}^+\times \mathbb{T}^2 $\end{document} with arbitrarily large wave strength. Compared with the previous work [17, 16] for the whole space problem, Navier boundary conditions, which state that the impermeable wall condition holds for the normal velocity and the fluid tangential velocity is proportional to the tangential component of the viscous stress tensor on the boundary, are crucially used for the stability analysis of the 3D initial-boundary value problem.
On the invariant region for compressible Euler equations with a general equation of state
Authors: Liu Hailiang , Thein Ferdinand
Published: June 2021

The state space for solutions of the compressible Euler equations with a general equation of state is examined. An arbitrary equation of state is allowed, subject only to the physical requirements of thermodynamics. An invariant region of the resulting Euler system is identified and the convexity property of this region is justified by using only very minimal thermodynamical assumptions. Finally, we show how an invariant-region-preserving (IRP) limiter can be constructed for use in high order finite-volume type schemes to solve the compressible Euler equations with a general constitutive relation.
On dynamics in a medium-term Keynesian model
Authors: Murakami Hiroki , Zimka Rudolf
Published: June 2021

This paper rigorously examines the (in)stability of limit cycles generated by Hopf bifurcations in a medium-term Keynesian model. The bifurcation equation of the model is derived and the conditions for stable and unstable limit cycles are presented. Numerical simulations are performed to illustrate the analytical results.
The model of nutrients influence on the tumor growth
Authors: Olach Rudolf , Lučanský Vincent , Dorociaková Božena
Published: June 2021

In this article a model of tumor growth is considered. The model is based on the reaction-diffusion equation that describes the distribution of nutrients within the tissue. Our aim was to predict the influence of nutrients on the tumor development. In the tissue the nutrients are transformed into energy, which supports the transfer of chemical and electrical signals and also transfer and copy the information in the tumor cells. We investigate, from a mathematical point of view, under which conditions this process takes place and how it affects the evolution of the tumor.
Ground state and nodal solutions for fractional Kirchhoff equation with pure critical growth nonlinearity
Authors: Liu Chungen , Zhang Huabo
Published: June 2021

In this paper, we consider the existence of least energy nodal solution and ground state solution, energy doubling property for the following fractional critical problem

   $ \begin{cases} -(a+ b\|u\|_{K}^{2})\mathcal{L}_K u+V(x)u = |u|^{2^{\ast}_{\alpha}-2}u+ k f(x,u),&x\in\Omega,\\ u = 0,&x\in\mathbb{R}^{3}\backslash\Omega, \end{cases} $

where $ k $ is a positive parameter, $ \mathcal{L}_K $ stands for a nonlocal fractional operator which is defined with the kernel function $ K $. By using the nodal Nehari manifold method, we obtain a least energy nodal solution $ u $ and a ground state solution $ v $ to this problem when $ k\gg1 $, where the nonlinear function $ f:\mathbb{R}^{3}\times\mathbb{R}\rightarrow \mathbb{R} $ is a Carathéodory function.
On Nonvanishing for uniruled log canonical pairs
Authors: Lazić Vladimir , Meng Fanjun
Published: June 2021

We prove the Nonvanishing conjecture for uniruled projective log canonical pairs of dimension $ n $, assuming the Nonvanishing conjecture for smooth projective varieties in dimension $ n-1 $. We also show that the existence of good minimal models for non-uniruled projective klt pairs in dimension $ n $ implies the existence of good minimal models for projective log canonical pairs in dimension $ n $.
Retraction: From Schouten to Mackenzie: Notes on brackets
Authors: Editorial Office
Published: June 2021

Journal of Geometric Mechanics, (2021)

This article was accidentally posted online but only to be discovered that the same article had been published (see [1]) in the same journal. Thus this publication is retracted. The Editorial Office offers apologies for the confusion and inconvenience it might have caused.
Managing piracy: Dual-channel strategy for digital contents
Authors: Chai Yan-Xin , Ren Steven Ji-Fan , Zhang Jian-Qiang
Published: June 2021

The Internet offers digital content disc producers the opportunities to design dual channels by introducing an online-direct store alongside traditional retail stores, but also leads related firms to suffer significant piracy problems. Using a game-theoretic framework, we explore dual-channel marketing optimality as a piracy-mitigating strategy for digital content sold in the physical disc format. We construct a price-setting game between a digital content producer and its independent retailer(s) in a pirated market by endogenizing the producer's copyright protection investments. We show that dual-channel marketing, a complement or a substitute for conventional copyright protection, can strategically mitigate the piracy level by increasing the equal-size retail sales volume. We also investigate how firms' pricing strategies and profits are influenced by the endogenous interaction of dual-channel marketing and copyright protection. We unexpectedly find that in a pirated market with insufficient copyright protection, dual-channel marketing can simultaneously raise firm pricing and sales volumes when the producer sells through a monopolistic retailer. We also identify the conditions under which dual-channel marketing can mitigate profit losses caused by piracy for the producer and the retailer(s). Unlike previous research which shows that dual-channel marketing benefits the producer and the monopolistic retailer because it mitigates double marginalization, in the pirated market, this win-win outcome occurs even if accompanied by aggravated double marginalization. Moreover, dual-channel marketing can mitigate all the firms' profit losses caused by piracy only when it can complement conventional copyright protection, i.e., when the producer sells through a monopolistic retailer or duopolistic retailers. In each situation, counter-intuitively, as copyright protection becomes increasingly costly, although the retailer(s) is (are) more willing to accept dual-channel marketing, the producer has a decreased incentive to design such sales channels.
Stochastic comparisons of series-parallel and parallel-series systems with dependence between components and also of subsystems
Authors: Barmalzan Ghobad , Hosseinzadeh Ali Akbar , Balakrishnan Narayanaswamy
Published: June 2021

In this paper, we consider series-parallel and parallel-series systems comprising dependent components that are drawn from a heterogeneous population consisting of \begin{document}$ m $\end{document} different subpopulations. The components within each subpopulation are assumed to be dependent, and the subsystems themselves are also dependent, with their joint distribution being modeled by an Archimedean copula. We consider a very general setting in which we assume that the subpopulations have different Archimedean copulas for their dependence. Under such a general setup, we discuss the usual stochastic, hazard rate and reversed hazard rate orders between these systems and present a number of numerical examples to illustrate all the results established here. Finally, some concluding remarks are made. The results established here extend the recent results of Fang et al. (2020) in which they have assumed all the subsystems to be independent.
Solving a constrained economic lot size problem by ranking efficient production policies
Authors: Sedeño-Noda Antonio , Gutiérrez José M.
Published: June 2021

We address the problem of finding the \begin{document}$ K $\end{document} best Zero-Inventory-Ordering (ZIO) policies of an Economic Lot-Sizing Problem (ELSP) with \begin{document}$ n $\end{document} time periods. To this end, we initially focus on devising an efficient algorithm to determine the Second Best ZIO policy. Based on both this latter algorithm and recent results from the state-of-the-art literature, we propose a solution method to compute the remaining \begin{document}$ K $\end{document} Best ZIO policies in \begin{document}$ O(n(K+n)) $\end{document} time and \begin{document}$ O(K+n^2 ) $\end{document} space. One claimed advantage of this approach is that it would efficiently solve a family of ELS problems, which includes a basic knapsack type constraint. A computational experiment is carried out to test the performance of the new algorithm \begin{document}$ K $\end{document}-ZIO and Constrained-ZIO for different values of \begin{document}$ K $\end{document} and \begin{document}$ n $\end{document}. For the particular case when the left-hand side coefficients in that constraint are equal, we provide an \begin{document}$ O(n^3 ) $\end{document} solution method.
Incompressible Navier-Stokes-Fourier limit from the Landau equation
Authors: Rachid Mohamad
Published: June 2021

In this work, we provide a result on the derivation of the incompressible Navier-Stokes-Fourier system from the Landau equation for hard, Maxwellian and moderately soft potentials. To this end, we first investigate the Cauchy theory associated to the rescaled Landau equation for small initial data. Our approach is based on proving estimates of some adapted Sobolev norms of the solution that are uniform in the Knudsen number. These uniform estimates also allow us to obtain a result of weak convergence towards the fluid limit system.
Iterative Rational Krylov Algorithms for model reduction of a class of constrained structural dynamic system with Engineering applications
Authors: Du Xin , Uddin M. Monir , Fony A. Mostakim , Hossain Md. Tanzim , Shuzan Md. Nazmul Islam
Published: June 2021

This paper discusses model order reduction of large sparse second-order index-3 differential algebraic equations (DAEs) by applying Iterative Rational Krylov Algorithm (IRKA). In general, such DAEs arise in constraint mechanics, multibody dynamics, mechatronics and many other branches of sciences and technologies. By deflecting the algebraic equations the second-order index-3 system can be altered into an equivalent standard second-order system. This can be done by projecting the system onto the null space of the constraint matrix. However, creating the projector is computationally expensive and it yields huge bottleneck during the implementation. This paper shows how to find a reduce order model without projecting the system onto the null space of the constraint matrix explicitly. To show the efficiency of the theoretical works we apply them to several data of second-order index-3 models and experimental resultants are discussed in the paper.
Design of an Educational Virtual Assistant Software
Authors: Halvoník Dominik , Psenak Peter
Published: June 2021

Despite the great creators’ efforts of e-learning educational materials, it is not possible to define the content of these materials specifically for all students. Based on this, it is necessary to provide in e-learning education the possibility of a more detailed interpretation of specific parts of the educational material that may be unclear to specific students. Based on this fact, we decided to take the first step in the form of software design, which will represent a virtual assistant in teaching computer science. The role of this assistant will be the ability to answer technical questions related to the presented curriculum. From an architectural point of view, it will be a set of micro-services, each of which will serve a specific task. The prerequisite is the use of decision trees to determine a specific micro-service, which will be implemented in the form of a neural network. Main aim of this paper is to provide detail description of global software architecture for such a virtual assistant
Impact of Using the Differentiated Instruction (DI) Strategy on Student Achievement in an Intermediate Stage Science Course
Authors: Rajeh Alsalhi Najeh , Abdelrahman Rasha , F. I. Abdelkader Atef , Salim Al-Yatim Sharif , Habboush Mahmoud , Al Qawasmi Abdellateef
Published: June 2021

This study aimed to investigate the impact of using the differentiated instruction strategy on stu-dents ’achievement in an intermediate school course and their attitudes towards it. The study was conducted using a semi-experimental method. Participants were 483 students, split into two groups: empiric (n = 244) and control (n = 239). Achievement tests and questionnaires were used as tools for this study. Data analyzed through the SPSS program. The results indicated that there were statistically significant differences between the groups for the benefit of the empiric group that taught via DI. The results also revealed positive attitudes towards the strategy used. The study recommends that attention to applying the differentiated teaching strategy for teaching science curricula and other textbooks
Analysis and Design of an Online Data Collection Scheme Based on Campus Public Opinion Monitoring System
Authors: Xia Zhiliang , Xiao Zhijian , Zheng Cong , Zhang Xiaoling
Published: June 2021

The network data collection module is critical to the monitoring system of the public opinion on campus. To optimize the effect of network data collection, this study carried out comparative analysis on several different network data collection schemes, and formulated a data collection and filtering scheme based on the Libnids library. To improve the data collection performance, a multi-process pseudo-distributed processing scheme was prepared under multi-core CPU and the Linux framework. Finally, the proposed scheme was proved feasible and valuable in application based on campus public opinion monitoring system.
The Role of Social Networks in the Organization of the Educational Process and Learning
Authors: Shestak Viktor , Gura Alena , Borisova Uliana , Kozlovskaya Svetlana
Published: June 2021

The objectives of the study are to conduct a survey among students and teachers of Russian universities, which will determine their general attitude to the use of social networks in education; to identify the functions of social networks from the perspective of respondents; based on the results of both stages of the study, to determine the role of social networks in the educational process. Students and teachers of four Russian universities (MGIMO University, Kuban State Technological University, North-Eastern Federal University, Russian State Social University) took part in the survey. A total of 500 students and 100 teachers were interviewed. The results of the first part of the study showed that the attitude of students and teachers towards the use of social networks in education is generally positive. Both groups of respondents noted the advantages of introducing social networks into the educational process and also stated their willingness to increase their use. When using social networks in education, students can fill in special forms to indicate social network accounts to be subsequently used. Also, the administration of group chats can be taken under the control of the university for the purpose of a more structured exchange of information/educational materials.
Helping Junior High School Student to Learn Fibonacci Sequence with Video-Based Learning
Authors: Tanu Wijaya Tommy , Li Li , Hermita Neni , Putra Zetra Hainul , Alim Jesi Alexander
Published: June 2021

In the 21st century, a teacher must be able to make teaching and learning activities conductive, fun That can improve students’ learning interest. Fibonacci sequence material is one of the materials that is difficult for Junior High school students to master. Based on this problem, the focus of this research is to create video learning on Fibonacci sequence material using Hawgent. This research is developed in Guangxi Normal University, China. This research is a research and development (RnD) using 4D model. 4D model consists of Defining, Design, Development, Dissemination. Video learning is made using interesting animations that are easy for students to understand. The results of this study indicate that the video learning has passed validation and can be sent to schools to help students understand Fibonacci sequence
Utilisation et rôles des exemples lors d’enseignements universitaires de chimie
Authors: Kermen Isabelle
Published: June 2021

Une étude qualitative menée au moyen d’entretiens, auprès de huit enseignants de chimie de deux universités, a déterminé les usages et rôles qu’ils attribuent aux exemples dans leurs enseignements. Un certain consensus se dégage sur la place et les caractéristiques des exemples, sur leurs rôles d’ordre cognitif, pédagogique, motivationnel ou encore médiatif. En revanche, les enseignants interrogés ne s’accordent pas pour désigner ce qui est fait en travaux pratiques, qui sont des exemples par essence pour certains, des situations concrètes pour d’autres. L’analyse des justifications apportées par les enseignants montre que le choix d’utiliser un exemple ou un certain type d’exemple relève d’influences diverses qui conditionnent partiellement les pratiques. Le rôle médiatif vis-à-vis du monde industriel semble accentué en master ou licence professionnelle mais sans que de véritables études de cas intégrant différents types de compétences et connaissances soient répandues.
L’école chinoise à travers les statistiques : la catégorisation ethnique et résidentielle en question
Authors: Wang Lijuan
Published: June 2021

De son passé, la Chine a hérité des catégories statistiques fondées sur l’ethnicité (Han/shaoshu minzu ou minorités) et la résidence (système du hukou). Nous étudions ici les difficultés engendrées par cette catégorisation, en particulier dans le domaine scolaire. L’essentialisation de catégories aux fondements scientifiques incertains parce que issues de la pratique ordinaire ainsi que l’absence d’homogénéité des modes de classement utilisés posent aujourd’hui problème et font l’objet d’un recul critique de la part de sociologues chinois à la recherche de nouvelles formes de classement plus adéquates pour saisir la réalité de la Chine contemporaine (Rocca, 2008). Dans cette voie, la difficulté d’accéder à des sources statistiques complètes ou pertinentes nous a amenée à recourir dans notre enquête, effectuée dans quatre lycées de la ville de Xichang, capitale de la Préfecture des Yi de Liangshan au Sichuan, à un mode de classement plus sociologique que politique qui permet d’appréhender la complexité de la réalité scolaire de ce pays, au-delà des catégories de la pratique politique ordinaire (appartenance à une minorité et statut résidentiel).
The Methodological Context in Higher Education
Authors: Rojas-de-Gracia María-Mercedes , Alarcón-Urbistondo Pilar
Published: June 2021

Given the limited number of documents addressing methodological context in higher education with a rigorous approach, this chapter comprises a document drawn up in order to clarify methodological concepts. It emphasizes the importance of the teaching-learning process and the significance of placing the student at the center of all actions. The educator's mission changes from being a mere transmitter of information to being a conductor and organizer of the learning situation. To achieve this, several methods must be combined, requiring a balance between the theoretical and practical classes. Likewise, they can be benefited by carrying out complementary activities. This combination is intended to face the great challenges of higher education in the 21st century, which are driven by changes in the way students learn. The emergence of technologies means that the protagonist in the collective construction of knowledge is the student, responding to their digital and participatory demands.
Assistive Technology to Promote Adaptive Responding and Reduce Challenging Behaviors in Children and Young Adults With Rare Genetic Syndrome
Authors: Stasolla Fabrizio , Ciarmoli Donatella
Published: June 2021

Children, adolescents, and young adults with rare genetic syndromes, neurodevelopmental disorders, and multiple disabilities may experience significant problems while dealing with everyday life environmental requests. Besides extensive motor impairments, intellectual disabilities, and communication difficulties, they may exhibit challenging behaviors. Clinical conditions may be deleterious on their social image, status, and quality of life. A practical way to tackle this issue is represented by assistive technology-based interventions. A narrative review on the newest empirical contributions available in the literature over last five years (i.e., 2015-2020) was presented. Nineteen studies were reviewed. Five main categories of studies were identified, namely (1) adaptive responding, (2) executive functions, (3) communication, (4) gait and locomotion, and (5) challenging behaviors. Results were satisfactory although occasional failures were evidenced. Some helpful insights were emphasized, and future directions for both research and practice were critically discussed.
Trauma-Informed Leadership in the 21st Century
Authors: Elliott Kyna
Published: June 2021

The 21st century has been marked by war, migration, racial and political tensions, and the COVID-19 global pandemic. The impact of these events on communities is evident in research findings on trauma and education in the 21st century. The purpose of this chapter is to examine the impact of trauma on the learning environment and the ways which trauma-informed leadership may mitigate its effects in the classroom. A literature review will present existing research on trauma, learning in the classroom, educator performance, and trauma-informed relational leadership. A description of the physiological effects of trauma, examples of manifestations in the classroom, and leadership and educator mitigation strategies are provided. The chapter ends with recommendations of leadership's role in modeling trauma-informed practices and mitigation strategies.
A Survey on Arrival Passenger Satisfaction Factors of Bandaranaike International Airport Services
Authors: Silva O. S. A. , Wanniarachchi S. S.
Published: June 2021

Airport industry has been a vast area which has been growing each second to cater to the demand of the passengers who have been arriving and departing through worldwide distributed airports for various types of purposes. This research had carried out to find out the Arrival Passenger Satisfaction of Bandaranaike International Airport Services. The passenger has been the king in the airport industry who can make a business success or a failure. To provide quality services as required by the passengers, airports should be following up on the modified strategies and amended policies. Because of an airport has been the entrance to the country which has been needed to be attracting new investments towards the country to build up the economy. BIA has been like our heart and it needs to perform well to keep the body alive A questionnaire had designed with 41 variables and a questionnaire survey had conducted. The target sample has been Bandaranaike International Airport users, although the sample size had 300, there had only 263 valid responses. Simple random sampling had used in this study and SPSS had used to analyze the data. The factors will be covered up as the independent variables and the dependent variable has been the passenger preference on BIA. Frequencies test will be run to all variables and for the demographic factors. A factor analysis had carried out to reduce the number of variables and grouping factors which have the same characteristics. Once this had completed the 41 variables had reduced to 9 variables.  A hypothesis testing will determine the independent and dependents variables for the passenger satisfaction as well as a factor analysis model will be illustrated to identify the relationships between variables and demographic factors, correlations and reliability of the factors. Finally, the research findings had discussed, and recommendations had made. The basis of recommendations had to focus on customer service and comfortability to have an efficient and effective BIA service system.
Impact of cleft lip and palate before and after treatment in a low-income population
Authors: Markus Anthony , Reddy Srinivas Gosla , Reddy Rajgopal R , Karkar Monal
Published: June 2021

Background:

Individuals with cleft lip and palate (CLP) and other craniofacial deformities are often perceived negatively in various social circumstances, resulting in failure to achieve full socio economic potential.

Aim of the study:

This study aimed to identify social stigmata and their causes associated with CLP and other deformities in an Indian population from a low socio-economic background, ways to reduce such effects and the potential reduction of disability following surgery.

Methods:

To assess the general awareness of the patients and their families regarding clefts, A GSR Institute: Cleft-Awareness Questionnaire (Reddy SG et al 2018) was used for data collection. 100 consecutive patients treated in GSR Institute for Craniofacial and Facial Plastic Surgery in Hyderabad, Telangana, were invited to join the study Statistical analysis regarding consanguineous marriage, understanding of clefts by parents and members of their community and of their societal conditions and the impact before and after surgery was carried out.

Results:

Statistical analysis using chi-squared test regarding the frequency of consanguineous marriage revealed no significant difference between the expected and observed frequencies in Telangana whereas there was a significant difference (p<0.001) between the values in India and also for understanding of clefts by parents (p<0.001) and friends/neighbours (p<0.001). On Kruskall-Wallis test and Pearson Chi-Squared Goodness of Fit test, no significance was observed on social conditions and associated problems faced by child before and after surgery respectively.

Conclusion:

These results confirm the impact of social stigmata in an Indian population with CLP and other craniofacial deformities predominantly related to the lack of education due to low socio-economic background and a heightened sense of superstitions of family, friends/neighbours of the affected individual thereby, causing embarrassment and depression. However, these were alleviated by surgical intervention and adequate speech therapy, thereby, improving social acceptance.
The use of hyaluronic acid in individuals with cleft lip and palate
Authors: Molena Kelly Fernanda , de Castro Pinto Lidiane , da Silva Dalben Gisele
Published: June 2021

Since the Resolution 198/2019 of Brazilian Dental Council, which regulates orofacial harmonization as a dental specialty, and the advent of various uses of facial fillers, such as hyaluronic acid (HA), it is possible to perform both esthetic and functional corrections in individuals. Individuals with cleft lip and palate (CLP) present lip irregularities even after orofacial rehabilitation with an interdisciplinary team with several corrective surgeries, interfering with the esthetics, which can cause problems in self-esteem and social insertion. Thus, facial filling is an innovation that, together with dentistry, contributes to the individual's esthetics and well-being. Considering the patient safety and health, more research is progressively being conducted to make such procedures less invasive. This work conducted a literature review on the use of HA as a facial filler to correct lip scars in patients with CLP. By a literature and transverse search in Scientific Electronic Library Online and PubMed databases using specific descriptors, the studies that met the inclusion criteria were selected, from 1990 to 2020. It can be concluded that the use of HA as a facial filling material in the correction of lip scars from reparative surgeries related to CLP has been shown to be effective both for correction of facial asymmetry and to improve the quality of life of patients who used the procedure.
Optimizing cleft care during COVID pandemic
Authors: Mohapatra Devi Prasad , Friji M T , Kumar S Dinesh , Chittoria Ravi Kumar , Pathan Imran , Shijina K
Published: June 2021

The COVID-19 pandemic has created disruptions worldwide with unprecedented interruption of non-COVID health care. Cleft care services toward children with cleft lip and palate have also been affected worldwide leading to stress among cleft caregivers. The use of remote consultation and therapy finds a definitive application in such situations. We present our method of providing uninterrupted cleft care through remote consultations service during this pandemic.
Unilateral peak nasal inspiratory flow, normal values in adult population
Authors: Ottaviano Giancarlo , Scadding Glenis K. , Scarpa Bruno , Accordi Daria , Staffieri Alberto , Lund Valerie J.
Published: June 2021

Aims: Measurement of Peak Nasal Inspiratory Flow (PNIF) is a cheap, simple, easily performed method to assess nasal patency and it is suitable for serial measurements and for home use. The purpose of this study was to establish normative unilateral PNIF data for a healthy adult population and provide charts relating unilateral PNIF normal values with various explanatory variables. Methods and results: Repeated measurements of PNIF and unilateral PNIF were performed in 109 volunteers. Ninety seven of these fulfilled the study criteria and all of them were non-smokers, non-asthmatic, without nose and paranasal sinus problems, with ages ranging from 13 to 80 years. Data were statistically analysed and tables were produced relating unilateral PNIF to height which was the only studied variable that correlated statistically with unilateral PNIF. Conclusions: The measurement of unilateral PNIF, providing the present data are confirmed in a larger series, could be a useful method to study single nostril patency to aid diagnosis of nasal disease, especially when it is necessary to assess the functional effects of unilateral nasal septal deviations or in all cases where there is a suspicion of a unilateral nasal occlusion. This pilot study provides initial normative unilateral PNIF data.
Does the maxillary sinus have a triggering role in nasal nitric oxide synthesis?
Authors: Güçlü O. , Uludağ A. , Akçalı A. , Tekin K. , Erdoğan H. , Sılan F. , Dereköy F.S.
Published: June 2021

Objectives: We investigated whether the maxillary sinus plays a stimulatory role in nasal nitric oxide (NO) synthesis. Research on sinusitis and nasal polyps has found low NO levels in exhaled air and linked this to obstruction of the ostium. However, the major source of NO in exhaled air is thought to be the nasal mucosa. In this study, Streptococcus pneumoniae was applied to the maxillary sinus to investigate changes in NO synthesis of the nasal mucosa. Methods: An experimental study was performed with New Zealand white rabbits. Three groups, pneumococcus, control and sham, were created. The maxillary sinus of the pneumococcal group was exposed to Streptococcus pneumoniae suspension. Before and after the exposure, bilateral biopsy specimens were taken from the inferior turbinate. Specimens were examined by RT-PCR for expressions of endothelial nitric oxide synthase (e-NOS) and inducible nitric oxide synthase (i-NOS). Physiological saline solution was administered to the maxillary sinus in the control group and biopsies were obtained. The sham group underwent only biopsy. Results: A significant increase in i-NOS expression of tissue samples from the pneumococcal group on the same and opposite sides were detected. There was no increase in e-NOS expression in this group. The control and sham groups had no significant change in i-NOS or e-NOS expression. Conclusion: In the acute period after the maxillary sinus is exposed to a pathogen, i-NOS expression increases in the nasal mucosa, but endothelial NOS expression is not affected. Consequently, a combined response in the maxillary sinus and the nasal mucosa for nitric oxide synthesis is shown in the present study.