bluuebunny/crossref_metadata_2025 huggingface dataset:
From functional neuroimaging to neurostimulation: fNIRS devices as cognitive enhancers
Authors: Waight Jason Lee , Arias Natalia , Jiménez-García Ana M. , Martini Matteo
Published: July 2023

Functional near-infrared spectroscopy (fNIRS) relies on near-infrared (NIR) light for changes in tissue oxygenation. For decades, this technique has been used in neuroscience to measure cortical activity. However, recent research suggests that NIR light directed to neural populations can modulate their activity through “photobiomodulation” (PBM). Yet, fNIRS is being used exclusively as a measurement tool. By adopting cognitive tests sensitive to prefrontal functioning, we show that a ‘classical’ fNIRS device, placed in correspondence of the prefrontal cortices of healthy participants, induces faster RTs and better accuracy in some of the indexes considered. A well-matched control group, wearing the same but inactive device, did not show any improvement. Hence, our findings indicate that the ‘standard’ use of fNIRS devices generates PBM impacting cognition. The neuromodulatory power intrinsic in that technique has been so far completely overlooked, and future studies will need to take this into account.
It is not real until it feels real: Testing a new method for simulation of eyewitness experience with virtual reality technology and equipment
Authors: Glomb Kaja , Piotrowski Przemysław , Romanowska Izabela Anna
Published: July 2023

Laboratory research in the psychology of witness testimony is often criticized for its lack of ecological validity, including the use of unrealistic artificial stimuli to test memory performance. The purpose of our study is to present a method that can provide an intermediary between laboratory research and field studies or naturalistic experiments that are difficult to control and administer. It uses Video-360° technology and virtual reality (VR) equipment, which cuts subjects off from external stimuli and gives them control over the visual field. This can potentially increase the realism of the eyewitness's experience. To test the method, we conducted an experiment comparing the immersion effect, emotional response, and memory performance between subjects who watched a video presenting a mock crime on a head-mounted display (VR goggles; n = 57) and a screen (n = 50). The results suggest that, compared to those who watched the video on a screen, the VR group had a deeper sense of immersion, that is, of being part of the scene presented. At the same time, they were not distracted or cognitively overloaded by the more complex virtual environment, and remembered just as much detail about the crime as those viewing it on the screen. Additionally, we noted significant differences between subjects in ratings of emotions felt during the video. This may suggest that the two formats evoke different types of discrete emotions. Overall, the results confirm the usefulness of the proposed method in witness research.
Pemanfaatan Lahan Perkarangan untuk Peningkatan Ekonomi Warga Desa Durian Sebatang
Authors: Suhiril Suhiril , Junaidi Junaidi , Sahadat Mudita , Sumartono Eko
Published: July 2023

Lahan perkarangan di Desa Durian Sebatang Kecamatan Kedurang Tepatnya di Kabupaten Bengkulu Selatan  sering kali terabaikan dan tidak dimanfaatkan dengan baik oleh warganya. Salah satu upaya yang dilakukan dalam kegiatan Pengabdian Kepada Masyarakat yang dilakukan oleh dosen bersama mahasiswa bagi masyarakat. Desa Durian Sabatang adalah untuk mengoptimalkan lahan yang kurang produktif dan tidak terurus menjadi bermanfaat bagi warga sekitarnya dengan melakukan penanaman sayuran dengan media polybag.  Bercocok tanam dengan menggunakan media polybag merupakan  tanaman mudah budidaya tidak mengenal musim dan cepat menghasilkan, dan dapat memanen kapan saja, serta memberikan penghasilan tambahan untuk warga.
“FOR MEDICINE TO PROVIDE US BENEFITS DAGUSIBU (GET, USE, SAVE AND DISPOSAL)”
Authors: Versita Riana , Diniati Rahma
Published: July 2023

DAGUSIBU is a program promoted by the Indonesian Pharmacist Association (IAI) to increase public understanding of how to use medicine properly.DAGUSIBU stands for (Get, Use, Save, Discard) which is concerned with how to get, use, store and dispose of drugs properly so that the purpose of treatment is achieved without destroying the environment. On this occasion the D3 Pharmacy FMIPA University of Bengkulu community service team tried to provide information as a resource person in a health chat program broadcast on the BETV television station with the theme For Drugs to Benefit Us DaGuSiBu (Get, Use, Save and Dispose of). The purpose of carrying out this activity This PPM is to increase public knowledge about how to get the right medicine. Increasing public knowledge about how to properly store and dispose of drugs.Community Service Activities in the Health Chat event with the theme So Medicines Benefit Us, DaGuSiBu (Get, Use, Save and Dispose of) were carried out and achieved indicators of success where there were rebroadcasts after 3 days of official broadcasts.”Keywords: Medicine, Benefits, Society
A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoidea) with lateral infructescence and rostrate cephalia from the Arfak Mountains, Papua, Indonesia
Authors: Keim A.P. , Witono J.R. , Efendy O. , Sujarwo W.
Published: July 2023

A new species of Freycinetia Gaudich. (Pandanaceae; Freycinetoidea) with a lateral infructescence and rostrate berries each with 4–8 stigmatic remains, rarely 4, fairly comman 8, mostly 5 –6. The possession of rostrate berries places this new species
in the section Devrieseella. The existence of F. wiharjae extends the distribution of the section further east to mainland New Guinea, while it was previously only known from Sulawesi and the Philippines.
Language Style of Delivering Da’wah Messages in the Youtube Channel ZAVILDA TV
Authors: Angriani Rina , Faridah Faridah
Published: July 2023

The evolution of advanced information technology is relatively fast. Because of this progress, people can now quickly gain knowledge through social media; many people use Youtube media to get information or entertainment. Zavilda TV's YouTube channel features various entertainment options, including experimental social entertainment. This study aims to find out the style of language for conveying da'wah messages in Zavilda TV's YouTube content entitled "DUA CEWE S3XY TATOAN INSYAF BECAUSE OF FEAR OF DEATH & CHOOSE HIJRAH!" In this study, the authors used a descriptive qualitative method and interpreted it using the theory of analysis of the Milles and Huberman model. The results of this research are that there is a way of delivering and style of da'wah language to research subjects, namely women who wear headscarves and veils, so that the subjects of this research have a sense of wanting to be aware and use them daily. This video has the most viewers compared to other videos, and there are also many negative comments from netizens (internet citizens) because it is considered that the social content of the experiment contains elements of intolerance
Implementation of Da’wah in Counteracting Hoax News on Social Media
Authors: Husniya Eta Amala , Auliya Mikhlathul , Nafisah Iklil
Published: July 2023

The primary objective of this study is to examine the significance of da'wah values within the MAFINDO (Masyarakat Anti Fitnah Indonesia) website as a means to combat hoax news on social media. The research methodology employed is content analysis, which helps   reveal the contents of the research instrument. The study utilizes the Media Dependency Theory to evaluate MAFINDO's image as portrayed in several of its posts. In this particular case, the Media Dependency Theory serves as a tool to better understand how da'wah values manifest in the content presented on the MAFINDO website, aiming to counter hoax news on social media. The study's findings indicate the presence of two da'wah values on the website. Firstly, the MAFINDO website serves as a platform for truth, promoting the value of information disclosure. Additionally, the value of da'wah is evident in the "fact-checking" tool, which makes a significant contribution to fostering an intelligent, critical, and honorable society. Individuals can establish trust and uphold national and societal harmony by collaborating to prevent the spread of fake news. Previous literature lacks research examining the role of da'wah in countering hoaxes, making this study a valuable contribution to the social and religious communication field and the study of hoax news on social media. This research highlights the correlation between social and religious factors in MAFINDO's role as an institution combating defamation and slander, particularly in anti-corruption efforts.
O CONTRIBUTO DA CONTABILIDADE DE CUSTO NO PROCESSO DE GESTÃO E TOMADA DE DECISÃO NA EMPRESA FIPAG EM XAI-XAI
Authors: Machava Izilda Machaia Rangisse , Tocoloa Alexandre Edgar Lourenço
Published: July 2023

O estudo versa sobre a temática: “O Contributo da contabilidade de custo no processo de gestão e tomada de decisão na empresa FIPAG em Xai-Xai”, tendo como o principal objectivo: analisar o contributo da contabilidade de custo no processo de tomada de decisão na empresa FIPAG. No tocante a metodologia usada optou-se pela abordagem qualitativa, usou-se a técnica de entrevista semiestruturada para a recolha de dados, os participantes desta pesquisa foram oito: sendo quatro contabilistas, dois gestores de produção e dois gestores do topo. Para análise dos resultados usou – se a técnica de análise de conteúdo. O estudo traz como resultados: a contabilidade de custo como uma ferramenta de gestão de custos imprescindíveis para gerir de forma eficaz e transparente os recursos financeiros da entidade por meio de métodos gestão, buscando uma compreensão real do processo de produção, de quanto está sendo empregado para se produzir cada produto, possibilitando compreender quanto foi gasto cada produto do início até o fim da produção; planificação e controlo das actividades de cada sector. Esta contabilidade custo auxilia na tomada de decisão assertiva. Constatou-se que a empresa se implementar o uso da ferramenta de Contabilidade de Custo como sistema contabilístico principal, vai melhorar a sua produtividade; prestação de contas e prestação de serviço; para tal o estudo apresenta uma proposta de melhoria para o sistema da empresa.
AUTOFORMAÇÃO PARA O ENSINO EM ARTE NOS ANOS FINAIS DO ENSINO FUNDAMENTAL NA EDUCAÇÃO BÁSICA EM MATO GROSSO
Authors: Pedreski Marli
Published: July 2023

Este texto propõe uma discussão sobre Autoformação continuada do professor da disciplina de Arte no Ensino Fundamental Anos Finais da Educação Básica, em Mato Grosso. Apresenta-se parte da legislação vigente para o currículo da disciplina de Arte e, objetiva-se a compreensão do percurso docente como aporte para a formação continuada do professor com o intuito da desconstrução sobre a prática. Pretende-se refletir sobre o papel do professor sobre o ensino polivalente para com as linguagens artísticas e dialogar sobre a Autoformação docente em Arte. Discorre-se com os documentos da Base Nacional Comum Curricular (2017) e o Documento de Referência Curricular para Mato Grosso (2018). Como aporte teórico, fundamenta-se em Tardif;Lessard (2014), Freire (1996), Passeggi (2016), Monteiro (2014), Barbosa(1998-2008) e demais autores relacionados à temática. Busca-se com esta reflexão, contribuir para a prática do ensino significativo para com a disciplina de Arte na escola de Educação Básica.
TRANSFORMAÇÕES CURRICULARES DO ENSINO BÁSICO EM MOÇAMBIQUE: INOVAÇÕES, IMPLEMENTAÇÃO E DESAFIOS DO SECULO XXI
Authors: Uachisso B.A. , Farias C.F.
Published: July 2023

A inovação se tornou, cada vez mais, um dos assuntos mais debatidos no universo corporativo. Hoje há uma surpreendente quantidade de artigos, livros, teses, cursos de especialização, conferências disponibilizados para fazer compreender os princípios, valores e processos capazes de criar transformações inovadoras nas organizações. A revisão bibliográfica, a pesquisa qualitativa estiveram na concretização da pesquisa, com uma abordagem dedutiva que centra-se na educação, por ser um processo que tem vindo a merecer uma dinâmica inovadora que acontece de uma pessoa para a outra. Por ser a educação que promove o desenvolvimento, o progresso a todos os níveis da sociedade, que gera novos saberes para a transformação social, tecnológica, política, por manter as sociedades vivas e prósperas. A educação foi, e é nos dias de hoje alvo de debates e análises que culminam com a transição de um modelo a outro quase em muitos países, mas com destaque a Moçambique. Neste contexto é apresentada a descrição das mudanças que educação moçambicana teve e respectivas inovações como se pode notar nos principais momentos de destaque nomeadamente: período de 1974 a 1975 considerado de transição do governo português ao primeiro governo nacional, em que foi retirado tudo que fosse contrário à ideologia da FRELIMO, de seguida 1975 a 1983 que foi a reformulação dos programas do ensino, em 1983 a 2004 introdução do Sistema Nacional de Educação com mudanças profundas no currículo e de 2004 até atualmente, introdução e implementação do novo currículo do ensino básico. As reflexões trazidas nesta abordagem sobre educação no país, estão mais centradas nas inovações introduzidas no novo currículo de ensino básico, sua adequação à realidade moçambicana. Constitui foco dos aspectos dessas inovações as acções implementadoras, capacitações em cascata, dificuldades que ainda persistem na leccionação, situação das novas disciplinas, com destaque ao currículo local, ensino bilíngue e sistema de ingresso dos professores na carreira de docência no país. os resultados mostram a existência de enormes desafios por parte da educação para que padrões aceitáveis sejam alcançados.
EVIDÊNCIAS DE TRANSFORMAÇÕES QUÍMICAS – EXPERIMENTOS PARA PARA O 1º ANO
Authors: Carvalho Souza Rafael Aparecido , Silva Cleiton Policarpo Martins da
Published: July 2023

O presente capítulo, intitulado "Evidências de transformações químicas - experimentos para o 1º ano", enfatiza a importância da química na vida dos estudantes, capacitando-os a compreender fatos, selecionar ideias e aplicar conceitos para solucionar desafios do cotidiano. Além disso, reconhecemos o papel essencial da química nos setores industrial e agrícola, destacando a necessidade de compreender as transformações químicas e seu impacto no meio ambiente. Ao compreender a relevância da química no progresso da sociedade e no estilo de vida, incentivamos os alunos a explorar e apreciar o fascinante mundo da química.
EDUCAÇÃO AMBIENTAL: HISTÓRICO, LEGISLAÇÃO E RELAÇÃO COM O AMBIENTE ESCOLAR
Authors: Lima Francisco Jeferson da Silva , Alves Oliveira Camila Tâmires
Published: July 2023

A Educação Ambiental (EA) é uma maneira de aprendizado para o gerenciamento e promoção das relações entre humanidade e natureza de forma agregada e sustentável. Diante do exposto, acredita-se que a Educação Ambiental pode ser utilizada para conscientizar as pessoas sobre a importância da conservação ambiental e dos seus recursos. Diante disso, o objetivo deste estudo foi abordar os aspectos ligados ao histórico e legislação da Educação Ambiental e sua relação com o ambiente escolar. A Educação Ambiental vem sendo abordada ao longo dos anos, seja através de obras como o livro Primavera Silenciosa de Rachel Carson (1962), seja por eventos como Conferência de Estocolmo (1972), Conferência Intergovernamental sobre Educação Ambiental (1977), Congresso Nacional sobre Educação e Formação Ambiental (1987), Seminário Latino-americano (1988), Conferência das Nações Unidas – Rio/92 (1992), Conferência Internacional sobre Meio Ambiente e Sociedade (1997) e vários outros eventos, de pequeno ou grande porte que ocorrem todos os anos. A legislação que rege a Educação Ambiental é a Lei nº 9.795 de abril de 1999. No entanto, a Educação Ambiental também está prevista na Constituição Federal garantindo que a Educação Ambiental é componente essencial e permanente da educação nacional. Os Parâmetros Curriculares Nacionais (PCNs), abordam que a Educação Ambiental é uma temática transversal no currículo das instituições de ensino básico, enquanto a lei de Diretrizes e Bases da Educação Básica (LDB) expõe a obrigatoriedade de abordar a temática de meio ambiente na educação básica. A Educação Ambiental é uma temática essencial para ser abordada no ambiente escolar, pois os alunos conseguirão verificar a importância da conservação da natureza e dos seus recursos, por meio da construção do pensamento reflexivo e crítico com auxílio dos professores e da escola. A partir do contato dos estudantes com a Educação Ambiental será possível desenvolver atitudes mais conscientes e sustentáveis.
REPRESENTAÇÕES AFRO DIASPÓRICAS E INDÍGENAS NO LIVRO DIDÁTICO “CONECTADOS ARTE”. UMA ANÁLISE INICIAL
Authors: Vilela Abilde Hartman Sacamoto , Silveira Borne Leonardo
Published: July 2023

Este estudo apresenta uma análise crítica de livros didáticos sobre as representações culturais afro diaspóricas e indígenas acerca dos objetos de conhecimento artísticos, em articulação com as habilidades da BNCC. Para tanto, tomou-se como base o primeiro livro da coleção Conectados Arte. Na análise, procuramos elementos educativos, textuais e pictóricos que abordassem o tema em questão. Buscamos articular esta análise com os conceitos de multiculturalismo, hibridização e funções da música. Através dela, conclui-se que o material em questão não traz, de forma sistemática e aprofundada, o preconizado pela legislação brasileira no tocante à história e diversidade cultural afro e indígena.
PENGARUH METODE PERHITUNGAN PPH PASAL 21 TERHADAP BEBAN PAJAK PENGHASILAN BADAN
Authors: Suseno Joko , Sani  , Tiffany Atria
Published: July 2023

Penelitian ini adalah untuk mengetahui perbandingan perhitungan Pajak Penghasilan Pasal 21 dengan menggunakan Metode Gross, Metode Net, atau Metode Gross-up yang paling efisien, dampaknya terhadap Beban dan Pajak Penghasilan Badan pada CV Pachira Motor. Data yang digunakan dalam penelitian ini adalah data sekunder yang diperoleh dalam bentuk jadi atau data yang sudah diolah melalui dokumentasi, observasi data danwawancara. Data sekunder yang digunakan dalam penelitian ini adalah daftar gaji karyawan dan laporan keuangan tahun 2021 pada CV. Pachira Motor, sedangkan metode analisis yang digunakan pada penelitian ini adalah metode analisis deskriptif dengan pendekatan kualitatif. Hasil penelitian ini menunjukkan bahwa dari metode perhitungan Pajak Penghasilan Pasal 21 dengan menggunakan Metode Gross, Metode Net, atau Metode Gross-up yang paling efisien adalah dengan metode gross-up atau pemberian tunjangan sebesar pajak terutangnya, dari perbandingan ketiga perhitungan yang dilakukan, metode gross-up atau pemberian tunjangan sebesar pajak terutangnya menghasilkan efisiensi terhadap Pajak Penghasilan Badan.
ANALISIS DETERMINAN DISIPLIN KERJA PEGAWAI PADA UPT PUSAT IPTEK DAN BAHASA KOTA PONTIANAK
Authors: Sulaiman  , Lhery Swara Oktaf Adania  , Awaludin M
Published: July 2023

This research began with the problems related to whether employee take home paid and fingerprint attendance affect  the work discipline of the employees of the Office of Investment and One Stop Service, West Kalimantan. Current study is aimed at investigation the impact of employee take home paid and fingerprint attendance on employee working discipline at the Office of Investment and One Stop Service, West Kalimantan Province. Current research is quantitative method approach with descriptive analysis. The sample used in this study amounted to 48 respondents.   The   data   collection   technique   used  a   questionnaire   with  a measurement scale using a Likert scale. Based on the T test and F test, employee take home paid (X1) has a partial effect and fingerprint attendance (X2) has a partial effect. And have a simultaneously affect on employee working discipline (Y). And based on the coefficient of determination, additional employee income and fingerprint attendance influenced about 77.8% on employee work discipline at the UPT Center for Science and Language Pontianak City,, while the other 22.2% were influenced by other factors not examined in this study.
Inverse MultiView. II. Microarcsecond Trigonometric Parallaxes for Southern Hemisphere 6.7 GHz Methanol Masers G232.62+00.99 and G323.74–00.26
Authors: Hyland L. J. , Reid M. J. , Orosz G. , Ellingsen S. P. , Weston S. D. , Kumar J. , Dodson R. , Rioja M. J. , Hankey W. J. , Yates-Jones P. M. , Natusch T. , Gulyaev S. , Menten K. M. , Brunthaler A.
Published: July 2023

We present the first results from the Southern Hemisphere Parallax Interferometric Radio Astrometry Legacy Survey: 10 μas accurate parallaxes and proper motions for two Southern Hemisphere 6.7 GHz methanol masers obtained using the inverse MultiView calibration method. Using an array of radio telescopes in Australia and New Zealand, we measured trigonometric parallaxes and proper motions for the masers associated with the star formation region G232.62+00.99 of π = 0.610 ± 0.011 mas, μ

x
= −2.266 ± 0.021 mas yr−1, and μ

y
= 2.249 ± 0.049 mas yr−1, which implies its distance to be d = 1.637 ± 0.029 kpc. These measurements represent an improvement in accuracy by more than a factor of 3 over the previous measurements obtained through Very Long Baseline Array observations of the 12 GHz methanol masers associated with this region. We also measure the trigonometric parallax and proper motion for G323.74–00.26 as π = 0.364 ± 0.009 mas, μ

x
= −3.239 ± 0.025 mas yr−1, and μ

y
= − 3.976 ± 0.039 mas yr−1, which implies a distance of d = 2.747 ± 0.068 kpc. These are the most accurate measurements of trigonometric parallax obtained for 6.7 GHz class II methanol masers to date. We confirm that G232.62+00.99 is in the Local Arm and find that G323.74–00.26 is in the Scutum–Centaurus arm. We also investigate the structure and internal dynamics of both masers.
Expanding-box Quasilinear Model of the Solar Wind
Authors: Seough J. , Yoon P. H. , Nariyuki Y. , Salem C.
Published: July 2023

The expanding-box model of the solar wind has been adopted in the literature within the context of magnetohydrodynamics, hybrid, and full particle-in-cell simulations to investigate the dynamic evolution of the solar wind. The present paper extends such a method to the framework of self-consistent quasilinear kinetic theory. It is shown that the expanding-box quasilinear methodology is largely equivalent to the inhomogeneous steady-state quasilinear model discussed earlier in the literature, but a distinction regarding the description of wave dynamics between the two approaches is also found. The expanding-box quasilinear formalism is further extended to include the effects of a spiraling solar-wind magnetic field as well as collisional age effects. The present finding shows that the expanding-box quasilinear approach and the steady-state global-kinetic models may be employed interchangeably in order to address other more complex problems associated with the solar-wind dynamics.
Formulating Compressive Strength of Dust Aggregates from Low to High Volume Filling Factors with Numerical Simulations
Authors: Tatsuuma Misako , Kataoka Akimasa , Okuzumi Satoshi , Tanaka Hidekazu
Published: July 2023

Compressive strength is a key to understanding the internal structure of dust aggregates in protoplanetary disks and their resultant bodies, such as comets and asteroids in the solar system. Previous work has modeled the compressive strength of highly porous dust aggregates with volume filling factors lower than 0.1. However, a comprehensive understanding of the compressive strength from low (<0.1) to high (>0.1) volume filling factors is lacking. In this paper, we investigate the compressive strength of dust aggregates by using aggregate compression simulations resolving constituent grains based on Johnson-Kendall-Roberts theory to formulate the compressive strength comprehensively. We perform a series of numerical simulations with moving periodic boundaries mimicking the compression behavior. As a result, we find that the compressive strength becomes sharply harder when the volume filling factor exceeds 0.1. We succeed in formulating the compressive strength comprehensively by taking into account the rolling motion of aggregates for low volume filling factors and the closest packing of aggregates for high volume filling factors. We also find that the dominant compression mechanisms for high volume filling factors are sliding and twisting motions, while rolling motion dominates for low volume filling factors. We confirm that our results are in good agreement with previous numerical studies. We suggest that our analytical formula is consistent with the previous experimental results if we assume the surface energy of silicate is ≃210 ± 90 mJ m−2. Now, we can apply our results to properties of small compact bodies, such as comets, asteroids, and pebbles.
Are Nonthermal Velocities in Active Region Coronal Loops Anisotropic?
Authors: Hahn Michael , Asgari-Targhi Mahboubeh , Savin Daniel Wolf
Published: July 2023

We have measured line widths in active region coronal loops in order to determine whether the nonthermal broadening is anisotropic with respect to the magnetic field direction. These nonthermal velocities are caused by unresolved fluid motions. Our analysis method combines spectroscopic data and a magnetic field extrapolation. We analyzed spectra from the Extreme Ultraviolet Imaging Spectrometer on Hinode. A differential emission measure analysis showed that many spectral lines that are commonly considered to be formed in the active region have a substantial contribution from the background quiet Sun. From these spectra we identified lines whose emission was dominated by the active region loops rather than background sources. Using these lines, we constructed maps of the nonthermal velocity. With data from the Helioseismic Magnetic Imager on the Solar Dynamics Observatory and the Coronal Modeling System nonlinear force-free magnetic field reconstruction code, we traced several of the magnetic field lines through the active region. Comparing the spectroscopic and magnetic data, we looked for correlations of the nonthermal velocity with the viewing angle between the line of sight and the magnetic field. We found that nonthermal velocities show a weak anticorrelation with the viewing angle. That is, the tendency is for the nonthermal velocity to be slightly larger in the parallel direction. This parallel broadening may be due to acoustic waves or unresolved parallel flows.
Tidal Truncation of Circumplanetary Disks Fails above a Critical Disk Aspect Ratio
Authors: Martin Rebecca G. , Armitage Philip J. , Lubow Stephen H. , Price Daniel J.
Published: July 2023

We use numerical simulations of circumplanetary disks to determine the boundary between disks that are radially truncated by the tidal potential and those where gas escapes the Hill sphere. We consider a model problem, in which a coplanar circumplanetary disk is resupplied with gas at an injection radius smaller than the Hill radius. We evolve the disk using the Phantom smoothed particle hydrodynamics code until a steady state is reached. We find that the most significant dependence of the truncation boundary is on the disk aspect ratio H/R. Circumplanetary disks are efficiently truncated for H/R ≲ 0.2. For H/R ≃ 0.3, up to about half of the injected mass, depending on the injection radius, flows outward through the decretion disk and escapes. As expected from analytic arguments, the conditions (H/R and Shakura–Sunyaev α) required for tidal truncation are independent of planet mass. A simulation with larger α = 0.1 shows stronger outflow than one with α = 0.01, but the dependence on transport efficiency is less important than variations of H/R. Our results suggest two distinct classes of circumplanetary disks: tidally truncated thin disks with dust-poor outer regions, and thicker actively decreting disks with enhanced dust-to-gas ratios. Applying our results to the PDS 70 c system, we predict a largely truncated circumplanetary disk, but it is possible that enough mass escapes to support an outward flow of dust that could explain the observed disk size.
Anomalous Flux Event in the TESS Sector 43 Light Curve of the White Dwarf Photometric Standard HZ 4 was Caused by a Passing Asteroid
Authors: Bell Keaton J. , Ardila David , Frymire Alexandra
Published: July 2023

Frymire & Ardila reported an anomalous flux variation in the Transiting Exoplanet Survey Satellite (TESS) Sector 43 light curve of the white dwarf HZ 4. We show that this flux variation was caused by the main-belt asteroid 4382 Stravinsky traversing the nearby TESS pixels, and it is therefore not a cause for concern regarding the continued use of HZ 4 as a photometric standard star.
Modeling the hourly consumption of electricity during period of power crisis
Authors: Gyamerah Samuel Asante , Agbi-Kaiser Henry Ofoe , Amankwah Keziah Ewura Adjoa , Anipa Patience , Bello Bright Arafat
Published: July 2023

In this paper, we capture the dynamic behavior of hourly consumption of electricity during the period of power crisis ("dumsor'' period) in Ghana using two-state Markov switching autoregressive (MS-AR) and autoregressive (AR) models. Hourly data between the periods of January 1, 2014 and December 31, 2014 was obtained from the Ghana Grid company and used for the study. Using different information criteria, the MS(2)-AR(4) is selected as the optimal model to describe the dynamic behavior of electricity consumption during periods of power crisis in Ghana. The parameters of the MS(2)-AR(4) model are then estimated using the expectation-maximization algorithm. From the results, the likelihood of staying under a low electricity consumption regime is estimated to be 87%. The expected duration for a low electricity consumption regime is 7.8 hours, and the high electricity consumption regime is expected to last 2.3 hours before switching to the low demand regime. The proposed model is robust as compared to the autoregressive model because it effectively captures the dynamics of electricity demand over time through the peaks and significant fluctuations in consumption patterns. Similarly, the model can identify distinct regime changes linked to electricity consumption during periods of power crises.
Civil Participation in the New Life
Authors: Sezgin Aslı , Yolcu Tuğba
Published: July 2023

This study aimed to analyze immigrant children's tendency to develop civic literacy skills as they have been rebuilding their lives since their immigration in the past decade, starting from 2011. Considered within the skills of the 21st century, civic literacy refers to certain dimensions of civic participation. This study was based on the interviews conducted with 10 immigrant children who were secondary school students continuing their education in Turkey. The texts they wrote after the content presented to them in the interviews were analyzed by document analysis method. The immigrant children's perceptions of civic participation and civic literacy, and the impact of the current education system on this perception, were evaluated through a document analysis form. As a consequence, it was aimed to present a critical evaluation of the social positions of those students participating in the research as concerns becoming a citizen of a new society, in which they are in the process of being integrated, as well as about sharing the same future and exercising the rights of citizenship.
Living in Limbo Zone
Authors: Ijaz Asif , Lindberg Frank
Published: July 2023

The aim of this chapter is to contribute with a novel understanding of how immigrants face acculturation-mediated conflicts while experiencing events in a host culture. The context of wedding events is chosen because it enables to study consequences of troubled acculturation when immigrants face ‘unfamiliar' rituals and social experiences in the host society. For doing this, the present study relies on the literature on acculturation theory, acculturation tensions, and role theory, the latter of which helps the researchers explain role distance conflicts and double bind situations that have been discovered in empirical data. The findings show four types of acculturation-mediated conflicts: (1) resisting host norms and values, (2) miscomprehending ritual practices, (3) disempowerment, and (4) trouble with role adjustment. The authors discuss how many of the immigrants end up in cultural clashes, or ‘limbo zone' role conflicts, that turn paradoxical because individuals face a situation that is difficult to continue and at the same time difficult to get away from.
Management of Client Loyalty at the Retail Point of Sale
Authors: Denga Edna Mngusughun , Ahmed Hafsat Sadiq
Published: July 2023

The cornerstone for success in retailing is to establish a compelling retail shopping experience, and identifying the appropriate technologies to support that experience is pivotal for sustaining a competitive edge. The retail industry is undergoing an evolution as a function of the informed customer, demographic shifts, evolving consumer tastes and preferences, internet commerce, and innovative retail formats. Modern retailers with contemporary service techniques are rapidly entering the market to appeal to customers with diverse interests and preferences. Retailers need to innovate and differentiate themselves in today's red ocean market. Consumers have grown in importance; thus, stores have to be adept at maintaining their existing customers while also identifying potential ones. Hence, the issue of customer loyalty comes into the picture. The retail industry is a fast-moving one, and retailers are always exploring novel methods to enhance their offerings. Installing retail POS systems allows retailers to boost customer experience, culminating in customer loyalty.
Metaverse and Digital Twins
Authors: Pratas Joaquim Monteiro
Published: July 2023

The purpose of this research is to assess the opportunity to increase retailers' profitability through metaverse stores, digital spaces, and digital twins. An exploratory methodology using Nike pioneer case studies and in-depth interviews with retail managers was used. The case studies analysis focused on the Nikeland store on Roblox and the Nike virtual store in Milan through Matterport 3D technology. Additionally, five retail managers were interviewed expressing their perceptions about the advantages, disadvantages and risks, and challenges and precautions in the implementation of metaverse stores and digital twins in their organizations. The findings demonstrate that these technologies have the potential to increase sales growth, market share, capital-to-labor ratio and promotion efforts, and therefore retailers' profitability. Moreover, the implementation can reduce inventory levels and operational costs improving the overall efficiency and profitability of retailers. The study also identified key measures to be considered when implementing these technologies.
Challenges and Opportunities for the Social Commerce
Authors: Correia Meireles Ana Cristina , Lima Ana Maria , Remondes Jorge
Published: July 2023

A new digital marketing trend is emerging, leveraged very much in part by the COVID-19 pandemic, which has accelerated and completely changed the e-commerce landscape, perhaps more than at any other time in history: social commerce. Online sales are no longer made solely and exclusively through online shops or e-commerce platforms but are now possible from social networks, which feature increasingly integrated and native shopping features, and features that leverage social commerce. Thus, a better understanding of this phenomenon becomes necessary, the emerging trends of the markets where this is already a reality, as well as the features that the big social commerce players contain, which this study sought to answer. Additionally, good practices likely to apply to business were identified. The present study, which used a qualitative methodology with recourse to the narrative literature review, reports and analysis of social networks, and direct observation of contents, results in a concrete proposal to boost the sales of companies on social networks.
Analyzing the Relationship Between Corporate Social Responsibility and Sustainable Performance
Authors: Falcó Javier Martínez , Sánchez-García Eduardo , Lajara Bartolomé Marco , Millan-Tudela Luis A.
Published: July 2023

This research aims to evaluate how corporate social responsibility (CSR) impacts sustainable performance (SP) of wineries, as well as the mediating role of organizational commitment (OC) and consumer satisfaction (CS) in this connection. Additionally, age, size, and membership of a protected designation of origin (PDO) are used as control variables to bolster the accuracy of the tested cause-effect relationships. A theoretical model is formulated and then tested by structural equation modeling (PLS-SEM) using primary data from a survey of 196 Spanish wineries collected between September 2022 and January 2023. Findings of the study demonstrate that CSR has a positive, significant effect on SP of wineries, as well as the mediating influence of OC and CS in this association. This work is invigorating for a few reasons. To start, it makes progress in the knowledge and comprehension of the correlation of CSR and SP of wineries. Furthermore, there are no prior studies researching OC and CS as measurement variables in the CSR-SP link in the wine context, providing new scientific knowledge.
Balanced Scorecard in Business Dynamic Environments
Authors: Gomes Jorge Vareda , Romão Mario
Published: July 2023

In the rapidly changing environments characterizing most industries today, organizations face intense competitive pressure to do things better, faster, and cheaper. The business environment of the 1990s has been subjected to rapid and accelerated change that creates more and more uncertainty and complexity. Most markets are becoming increasingly dynamic. Organizations can no longer rely on a traditional analytical approach to understand their industry or market, since that market is changing in rapid and unexpected ways. Despite its worldwide dissemination, balanced scorecard (BSC) has demonstrated inadequacy in certain circumstances. Some of the original advantages of the BSC can nowadays be interpreted as weaknesses. By using a case study, the authors suggest that in business dynamic environments the benefits management approach, by using the benefits dependency network, can help BSCs to guide and support the benefits achievement related with investments, in a complementary way.
Happiness Management in the Corporate Domain
Authors: Falcó Javier Martínez , Lajara Bartolomé Marco , Sánchez-García Eduardo , Millan-Tudela Luis A.
Published: July 2023

The research provides an up-to-date bibliometric analysis of literature surrounding happiness management in companies over a 22-year period. A PRISMA methodology is used to access the web of science core collection database for data collection and VosViewer to create network maps. The results showed a rapid increase in scientific production since 2017 and a preference for articles as the mode of publication. The business category was found to be the most frequent area of study, while Emerald, Springer, and Elsevier publishers were prominent in the publication of documents related to the topic. The significance of the study is threefold: an exploration of existing literature on happiness management in companies, checking the comprehensiveness of previous narrative and systematic reviews, and ensuring an updated narrative review of the literature.
Judgment Work
Authors: Myers Jonna , Ramsey Hank
Published: July 2023

This chapter explores the scholarship that addresses the relationship between artificial intelligence (AI) and strategic management. While technology offers organizations many unique benefits, scholars and practitioners question the limits of AI with regard to the adoption and dissemination of strategic managerial decisions. This chapter offers judgment work as an important competency during this Fourth Industrial Revolution (Industry 4.0) as it helps managers to differentiate between tasks that can be automated by AI and tasks that can be augmented by the strategic use of AI. Implications for business education are discussed as well as suggestions for future research.
Transforming Strategic Management Using Agile Methodologies
Authors: Kargas Antonios , Aretos Anastasios
Published: July 2023

The international business environment is characterized by high complexity while gaining a competitive advantage and achieving long-term sustainability is a hard–gained goal. A key in reaching that goal lies on flexible methodologies that affect strategic management. The chapter's aim is to research on aspects related with Scrum's implementation and productivity/quality achieved, where a need for constant research exists. Systematic literature review was conducted in order to choose the most relevant studies and to code the key words and themes that seem most important to address this relationship, while two interviews with Scrum's experts came to provide empirical information. The most important aspects for successful agile methodologies' adoption are presented, while results indicate that “adoption” and “perception” seem to be the most critical factors for its successful implementation. Moreover, a widespread extended misconception about agile methodologies is presented leading to hybrid situations in strategic management where both agile principles and hierarchical control are used.
A extinção da universidade do Distrito Federal (UDF/RJ)
Authors: Peres José Roberto Pereira
Published: July 2023

O objetivo central deste trabalho é compreender as tensões que provocaram a extinção da Universidade do Distrito Federal (UDF/RJ) e o fim de um projeto inovador de formação de professores de Artes, que acontecia no Instituto de Artes da referida universidade na década de 1930. O referencial teórico que norteia as reflexões desta pesquisa baseia-se nos trabalhos dos seguintes autores: Basbaum (1976), Fávero (2004), Lopes (2006, 2009) e Mendonça (2002). A metodologia consistiu em análise documental dos acervos das seguintes instituições: Programa de Estudos e Documentação Educação e Sociedade da UFRJ, Projeto Portinari da PUC-Rio, Fundação Casa de Rui Barbosa e Hemeroteca Digital da Biblioteca Nacional. A análise das fontes possibilitou confirmar que as práticas artísticas inovadoras que aconteciam no Instituto de Artes da Universidade do Distrito Federal (IA/UDF) promoviam a experimentação de novas técnicas e materiais, assim como contribuíam para a elaboração de obras que rompiam com o padrão da arte acadêmica. Isso resultava na representação do povo em suas diversas manifestações, provocando um grande incômodo nos setores conservadores, tanto no meio artístico quanto no meio político.
Failure Analysis of AISI H13 Shafts Used in Twin Screw Extruders during Fluoropolymer Compounding
Authors: Shrinivas Vijay , Arumugam Thillairajan
Published: July 2023

AISI H13 material finds wide use as screw shafts and screw elements in Twin Screw Extruders for Polymer Compounding applications owing to its high strength, excellent thermal shock resistance, high wear resistance and good fatigue strength. However, two AISI H13 shafts used in the Twin Screw Extruder supplied for fluoropolymer application experienced breakage after two years of service. Visual examination of broken shafts revealed deposits of processing material, rust marks and grooves at multiple locations on the shaft spline at the element to element butting zone. The location of breakage of the shaft was noted at Barrel No.5, which happens to be the vent zone of the extruder. The fracture surface was observed to be almost perpendicular to the rotating axis of the shaft. Macro-examination of the shafts showed abnormal wear at the groove areas and significant reduction in the diameter of the screw shafts with complete absence of spline in the zone adjacent to fracture. Hardness survey revealed values of 25-27 HRC that was 18-20 HRC lower than the hardness in supply condition. Microstructural examination on the failed shafts showed fine spheroidized carbides with ferrite in tempered martensitic matrix. SEM Analysis on samples from fracture surface revealed presence of multiple micro-voids and indicated coalescence of these voids. Based on the investigation & analyses it was inferred that the predominant mode of failure of the shafts had been “Corrosion Assisted Ductile Rupture” in elevated temperature operating conditions. Finally, recommendation to prevent occurrence of such failures has been proposed.
Tensile Strength Evaluation of FDM 3D-Printed Polymer Using Taguchi Methodology and Range Analysis
Authors: Espino Michaela T. , Tuazon Brian Jumaquio , Dizon John Ryan C.
Published: July 2023

Fused Deposition Modeling (FDM) is an Additive Manufacturing technology where a heated plastic filament will be placed on the bedplate layer by layer until the 3D object is printed. The mechanical properties of the ABS FDM 3D-printed parts are not yet determined or estimated prior printing. Hence, the goal of this study is to identify the optimum 3D printing parameters based on the tensile properties of ABS FDM 3D-printed polymer parts. Taguchi approach and Range Analysis were used in finding the optimum 3D printing parameters in which different parameters were considered to meet the requirements of the orthogonal arrays. Five pieces of 3D-printed dumbbell-shaped tensile specimen were prepared for each parameter. The tests followed the ASTM D638-14 standard. The result for the optimum 3D printing configuration of ABS FDM 3D-printed material were concluded as the values with the highest tensile strength.
Effect of Chromium Substitution on Microstructure and Magnetic Properties of La0.7Sr0.2Ba0.1Mn1-xCrxO3 (x = 0, 0.03, 0.05, 0.07, 0.1)
Authors: Munazat Dicky Rezky , Kurniawan Budhy , Aprilianto Trians , Manawan Maykel
Published: July 2023

Structure, morphology, and magnetic properties of perovskite La0.7Sr0.2Ba0.1Mn1-xCrxO3 (x = 0; 0.03; 0.05; 0.07 and 0.1) synthesized via sol-gel method have been studied. X-ray diffraction studies confirm the Rhombohedral structure with R-3c space groups for all samples. The magnetization measurements clearly show that magnetization decreases with increasing Cr substitution concentration. The partial substitution of Cr3+ in the Mn site weakens the ferromagnetic double exchange interaction of the Mn3+–O–Mn4+ bond. It is caused by the emergence of the Cr3+–O–Cr3+ antiferromagnetic interaction. As known, the structural parameters affect the magnetic properties of perovskite manganese materials in the double exchange interaction. As the Cr3+ concentration increases, the average Mn-O bond length also increases, and the average Mn-O-Mn bond angle decreases, which dramatically weakens the Mn3+–O–Mn4+ double exchange interaction.