bluuebunny/crossref_metadata_2025 huggingface dataset:
Using AI-generative tools in tertiary education: Reflections on their effectiveness in improving tertiary students’ English writing abilities
Authors: Cheng Ching Ho
Published: September 2024

Artificial intelligence (AI) tools have become a popular topic in the education field. Most of the schools in Hong Kong focus on how to properly use AI software to help students’ learning experience. As this is still a relatively new device, the stance for most of the schools in Hong Kong is skeptical. This study aims to find out whether AL-Generative tools, such as Chatgpt, can help to improve students’ English writing skills in university. Interviews were used to find out students and teachers’ opinions towards using AI in writing. The results indicate that students find AI tools convenient for learning writing skills, but teachers are concerned that the feedback and examples provided by AI are too general and ambiguous. This study provides some interesting opinions from students and teachers about their experience in using AI in learning and writing, and this helps us to understand more about how to use AI effectively in the education sector.
Introduction to the Special Issue: Select Papers Presented at the 2023 OLC Accelerate Conference and the 2024 OLC Innovate Conference
Authors: Moskal Patsy
Published: September 2024

Intro to the special issue
Introduction to Section III
Authors: Shea Peter
Published: September 2024

In addition to the two special sections in this third quarterly volume, this issue also contains 10 articles from our regular submission process. These articles cover a broad range of related themes such as online student retention, online faculty effectiveness, developing community, and some of the longer-term effects of the COVID pandemic on online students. This paper provides an integrated overview of these articles.
CEO GENDER AND FIRM PERFORMANCE: EVIDENCE FROM THE COVID-19 PANDEMIC
Authors: Koimisis Georgios , Giannikos Christos , Lou Jun
Published: September 2024

The COVID 19 pandemic precipitated an unprecedented deceleration of economic activities and a stock market crash. The unparalleled shock and the altered risk attitudes present a distinctive opportunity to examine whether the well-established concept of the "glass ceiling" is indicative of latent gender differentials in company performance. Utilizing US financial data, the study employs a range of methodologies to examine whether firms led by female CEOs exhibited the same performance as firms led by male CEOs during 2020-2021. Our empirical results confirm previous findings from the finance literature, as we neither find a systematic difference in returns to holding stock in female-led firms, nor a difference in accounting returns between female-led and male-headed firms.
Strengthening we-ness in working with intercultural couples.
Authors: Young Han
Published: September 2024

This article reports on a qualitative grounded theory study of how intercultural couples develop and nurture their relationships. Interviews were conducted with 33 individuals living in New Zealand who were part of heterosexual intercultural relationships where one person was Korean and the other was non-Korean. The findings indicated that intercultural couples work together to develop and nurture their relationships across three phases: (a) building a solid foundation, (b) striving for better relationships, and (c) embracing the relationship, culminating in a grounded theory referred to as strengthening we-ness. We argue that counsellors should understand the importance of strengthening we-ness when working with intercultural couples.
Addressing Imbalanced EEG Data for Improved Microsleep Detection: An ADASYN, FFT and LDA-Based Approach
Authors: Hasan Md Mahmudul , Khandaker Sayma , Sulaiman Norizam , Mahfuj Hossain Mirza , Islam Ashraful
Published: September 2024

Microsleep, brief lapses in consciousness lasting less than 15 seconds, are often accompanied by feelings of fatigue and are detectable through a deceleration in electroencephalogram (EEG) signal frequencies. Accurate identification of microsleep is critical for assessing driver alertness and preventing accidents. This paper introduces a novel approach to detecting driver microsleep by leveraging EEG signals and advanced machine learning techniques. The methodology begins with preprocessing raw EEG data to improve quality and balance, utilizing the ADASYN algorithm to address dataset imbalances. After preprocessing, features are extracted using Fast Fourier Transform (FFT), which provides a comprehensive frequency domain analysis of the EEG signals. For classification, Linear Discriminant Analysis (LDA) is employed to effectively distinguish between microsleep events and normal wakefulness based on the extracted features. The proposed framework was rigorously validated using a well-established publicly available EEG dataset, which included recordings from 76 healthy individuals. The validation results revealed a high testing accuracy of 92.71% in detecting microsleep episodes, demonstrating the effectiveness of the proposed approach. These results underscore the potential of combining EEG signal analysis with machine learning models for practical applications in monitoring driver alertness. The framework could significantly enhance driver safety by providing an effective tool for detecting microsleep and thereby reducing the risk of accidents caused by drowsy driving. This research highlights the promising application of advanced signal processing and machine learning techniques in the field of driver alertness monitoring.
Road’s mortality prediction for the most vulnerable users in the context of the COVID-19 pandemic in Santiago de Cali, Colombia
Authors: Murillo-Hoyos Jackeline , Muñoz Ribká Soracipa , Rodríguez Daniel Eduardo Guzmán , Herrera Sandra Catalina Correa , Prieto-Bohórquez Signed Esperanza , Molina Ciro Jaramillo
Published: September 2024

The purpose of this study is to predict the frequency of mortality from urban traffic injuries for the most vulnerable road users before, during and after the confinement caused by COVID-19 in Santiago de Cali, Colombia. Descriptive statistical methods were applied to the frequency of traffic crash frequency to identify vulnerable road users. Spatial georeferencing was carried out to analyze the distribution of road crashes in the three moments, before, during, and after confinement, subsequently, the behavior of the most vulnerable road users at those three moments was predicted within the framework of the probabilistic random walk. The statistical results showed that the most vulnerable road user was the cyclist, followed by motorcyclist, motorcycle passenger, and pedestrian. Spatial georeferencing between the years 2019 and 2020 showed a change in the behavior of the crash density, while in 2021 a trend like the distribution of 2019 was observed. The predictions of the daily crash frequencies of these road users in the three moments were very close to the reported crash frequency. The predictions were strengthened by considering a descriptive analysis of a range of values that may indicate the possibility of underreporting in cases registered in the city’s official agency. These results provide new elements for policy makers to develop and implement preventive measures, allocate emergency resources, analyze the establishment of policies, plans and strategies aimed at the prevention and control of crashes due to traffic injuries in the face of extraordinary situations such as the COVID-19 pandemic or other similar events.
Simplification analysis of labour policy and regulation as an effort to increase micro and small enterprises’ growth in Indonesia
Authors: Velentina Rouli Anita , Ernawati Ninin
Published: September 2024

This research aims to examine in more depth the changes resulting from the Job Creation Law, which impact the level of business friendliness in Indonesia, and how to analyze these changes to improve the business environment to be more conducive to carrying out business activities. This research uses normative legal research methods and is analytical descriptive research. There have been several changes since the emergence of the Job Creation Law, such as the establishment of a limited liability company. Changes to the Job Creation Law could improve the Indonesian economy. However, juridically, this regulation gives authority to the central government to manage micro and small businesses, contrary to the principle of decentralization, which prioritizes the provision of resources to local governments.
Patronage and low competency of members as causes of weak implementation of the functions of the village consultative body in realizing a self-governing community
Authors: Prianto Budhy , Suharnoko Dwi , Molyo Priyo Dari , Widayati Sri
Published: September 2024

Law Number 6 of 2014 concerning Villages mandates the Village Consultative Body (BPD) as a partner of the village government in empowering village communities to achieve self-governing communities. Referring to the Village Development Index (IDM) in Malang Regency, even though there are no villages classified as very underdeveloped or underdeveloped, there are still more than 61.6% (233 villages) classified as developing, while there are 33.1% (125 villages) classified as developed, and 5.3% (20 villages) are classified as independent. Departing from this phenomenon, this research aims to describe how the BPD functions are implemented in villages classified as developing in Malang Regency under the mandate of Law No. 6 of 2014. Using a qualitative approach, research data collection was carried out using depth-interview and focus group discussion (FGD) techniques. Data analysis uses the stages proposed by Cresswell. The research results indicate that the implementation of the functions and roles of BPD in the research object villages is less effective. Patronage and the low competence and capacity of the average BPD members, as a result of a less focused election process, minimal education, training, and technical guidance, and a very inadequate development budget, are the causes of the ineffective implementation of the roles and functions of BPD members. The ineffective function of the BPD breaks hopes for increased democratization and participation of village communities in efforts to achieve a self-governing community in Malang Regency.
Polycyclic Aromatic Hydrocarbons (PAHs) Contamination Levels in Some Commercial Olive Oils Sold on the Markets in Giresun, Türkiye
Authors: Basançelebi Onur
Published: September 2024

Olive oil is widely consumed worldwide and well-known for its health beneficial effects. However, polycyclic aromatic hydrocarbons (PAHs) contamination in olive oils has been a serious concern and knowledge regarding PAH concentrations in olive oils is scarce. The aim of this study was the determination and evaluation of PAH contamination levels in olive oils in the market. In this study, commercial olive oils (n=14) available in the markets of Giresun (Türkiye), including extra virgin and riviera olive oil samples, were investigated. Samples were analyzed by a gas chromatography unit coupled with a mass spectrometer. Significant amounts of PAHs were determined in all olive oil samples. The PAH contents of the samples varied between 0.04 µg kg-1 and 4637.13 µg kg-1 with the mean content of 264.61 µg kg-1. Regarding benzo[a]pyrene, 64.28% of the samples was incompatible with the EU requirements. None of the samples were compatible with the EU requirements in terms of PAH4 components (benzo[a]pyrene, benzo(a)anthracene, chrysene, and benzo[b]fluoranthene). Results showed that commercial olive oils studied in this research might contain PAHs categorized under potential carcinogens.
Emulsion Stability and Rheological Properties of Emulsions Prepared with Ozonized Hazelnut Oil
Authors: Uzun Karka Hicran , İbanoğlu Esra
Published: September 2024

In this study, physical and rheological characteristics of the emulsion stabilized with whey protein isolate (WPI) at a concentration of 0.25% (w/w) and containing ozone applicated hazelnut oil (OHO) were studied. The hazelnut oil was subjected to ozone gas exposure for durations of 1, 5, 30, 60, 180, and 360 min. The emulsions made with both control (HO) and OHO were analysed to assess emulsion properties. It was observed that as the duration of ozone application increased, the emulsion activity index (EAI) experienced a decrease. Specifically, ozone applications of 30, 60, and 180 min significantly reduced emulsion stability index (ESI). The creaming ratio of emulsions formulated with OHO for durations of 1, 5, 30, 60, and 180 min were found to be 23%, 20%, 18%, 16%, and 44%, respectively. Optical microscopy revealed that significant flocculated droplet formed in emulsions including OHO. The longer time the ozone application resulted that the emulsions exhibited more solid-like behaviour. Furthermore, differential scanning calorimeter (DSC) was utilized to assess the changes in the melting and cooling profiles of hazelnut oil after being applicated with ozone. An increase in ozone application duration led to the melting peaks broadening and shifting towards lower temperatures. Also, ozone application caused that the sharp exothermic crystallization shifted towards lower temperatures and become broader and less pronounced as the duration of the application increased.
Study on the efficiency of small-scale wind turbine with rotor adapted for low wind speeds
Authors: Strojny Piotr
Published: September 2024

This article aims to present the results of tunnel tests and field tests of small-scale horizontal-axis wind turbines. The article proposes a new concept of turbine rotor adapted to improve efficiency at low wind speeds. The methodology for calculating the rotor and generator is shown. The turbine construction solution is presented briefly, along with the technology for manufacturing turbine components and assembly. An analysis of the obtained results is also conducted.
Hedonismus nach dem Ende des Kapitalismus. Warum ein genügsames Leben lustvoll ist
Authors: Rother Wolfgang
Published: September 2024

Dass Kapitalismus und grenzenloses Wachstum in die ökonomische Krise (Ressourcen, Energie) und die ökologische Katastrophe (Klima) führen, ist eine Erkenntnis, die seit den 1970er Jahren diskutiert wird und die einen hedonistischen Lebensstil als obsolet, unangemessen und unverantwortlich, weil inkompatibel mit den Anforderungen der ökologischen Nachhaltigkeit erscheinen lassen. Müssen wir also, wie es Degrowth-Konzepte geltend machen, auf den Wohlstand, der uns ein angenehmes, lustvolles und glückliches Leben ermöglicht, verzichten? Wenn wir einsehen, dass Glück und Lust weder erstrebenswerte oder realisierbare Lebenszwecke (Freud) noch taugliche Motive für moralisch gutes Handeln (Kant) sind, wenn wir Verzicht als Gebot der Vernunft betrachten, werden wir kein Problem mit einem genügsamen Lebensstil haben. Da aber nicht vorausgesetzt werden kann, dass sich alle Menschen den Theorien Freuds oder Kants anschliessen möchten, verfolgt der vorliegende Beitrag eine andere Argumentationsstrategie: Es wird unter Rückgriff auf die Nikomachische Ethik des Aristoteles und auf Epikur, den Stammvater des Hedonismus, gezeigt, dass Verzicht und Genügsamkeit gar nicht im Widerspruch zum Lustprinzip stehen, sondern dass sie vielmehr ein lustvolles, erfülltes und gutes Leben erst ermöglichen.
Habitat Structure Impact on the Occurrence Preferences and Behaviour of the Endangered Species Hipparchia hermione (Lepidoptera, Nymphalidae) in Slovakia
Authors: Farkasová Sabína , Kalivoda Henrik , Langraf Vladimír , Holecová Milada
Published: September 2024

The aim of this study is to elaborate on the prior information about Hipparchia hermione ecology, examine its behaviour and find the habitat preferences of the species in specific study areas. The obtained results contribute to better management and conservation of the species and its habitats in Slovakia. Six types of behaviour were observed, with the exception of courtship dances, mating and perching. The most common types of behaviour observed were flight and food intake. The RDA analysis of behaviour and environmental variables resulted in a positive effect of free substrate and tall-herb vegetation on H. hermione abundance. The free substrate had a significant positive effect on all types of H. hermione behaviour. The results of the RDA analysis indicate butterflies’ shrub preference. The notion of shrubs’ presence having a positive effect on the representation of H. hermione is supported by another data set, according to which shrub vegetation provided ideal conditions for all types of observed behaviour. The abundance and diversity of nectaring plants did not have a statistically significant effect on species representation. Due to the environmental variables, the tree crowns’ significance plays a vital role. The average values are of 50%. The number of H. hermione individuals in the study areas increased with the growing number of tree trunks over 20 cm and heights over 3 m and the growing number of caterpillar host plants (Festuca ovina). The data show that Hipparchia hermione butterflies depend more on the spatial and structural arrangement of the forest than on abundance or diversity of the flora in the study areas.
Integral of Continuous Three Variable Functions
Authors: Endou Noboru , Shidama Yasunari
Published: September 2024

In this article we continue our proofs on integrals of continuous functions of three variables in Mizar. In fact, we use similar techniques as in the case of two variables: we deal with projections of continuous function, the continuity of three variable functions in general, aiming at pure real-valued functions (not necessarily extended real-valued functions), concluding with integrability and iterated integrals of continuous functions of three variables.
Embodying scenes of moral disorder: Bodily gestures as a site of signification in feminist TikTok activism
Authors: Sigurdardottir Heba , Rautajoki Hanna
Published: September 2024

Platformisation has facilitated the emergence of new rhetorical spaces where activists can creatively structure and present their political statements according to medium-specific affordances. In this article, we examine a group of activists on TikTok who topicalise gender-based violence and gender inequality through multimodal means of communication in short videos. We approached these videos as rhetorical arenas for communicating compelling messages with the aim of appealing to the audience. We used digital ethnography, multimodal discourse analysis, and approaches to the mediality of the body to conduct our investigation and analyses. Our results explicate how affective cues and bodily signals are put to rhetorical and political use in TikTok stories to pursue social change. That is, bodily performances stage interrelational positionings in a visual format, conveying affective evaluations and judgements about the state of the world and forming rhizomatic threads of messages to mobilise support and to affirm identification among the members of the movement.
Veiling as free choice or coercion: Banal religion, gender equality, and Swedish identity on Instagram
Authors: Lövheim Mia , Jensdotter Linnea
Published: September 2024

In this article, we analyse implicit connections between gender equality and particular forms of religion in Sweden, as expressed in political discourse and social media debates. Instagram posts responding to the Christian Democrats [Kristdemokraterna] political party's proposal to ban the wearing of veils in Swedish primary schools in 2021 were analysed through methods of co-occurrence analysis and feminist critical discourse analysis. By applying the concept of banal religion from mediatisation of religion theory, the results reveal how implicit connections between veiling as opposed to gender equality in the proposal turn into explicit debates on Instagram regarding what kind of religious practice is compatible with Swedish identity and values. This reveals the ambiguous nature of Instagram as a digital platform that may enhance hegemonic ideas of gender, ethnic, and religious identities, but that may also enable Muslim women to challenge understandings of Islam and gender equality in the public debate.
Fantasised and fantastical Nordic imaginaries: Contextualising Nordic life vlogs by East Asian YouTube vloggers
Authors: Lee Jin , Abidin Crystal
Published: September 2024

Nordic life vlogs are a popular genre among avid watchers of YouTube influencers across East Asia. The vlogs showcase “a slice of life” content, documenting the simple living, daily routines, beautiful landscapes, cultural festivals, and everyday norms of what it is like to live in the Nordic region. While there are many Nordic life vloggers, in this article, we focus on a subset: young immigrant women from Japan and South Korea living in the Nordics. By attending to the genre, content, and interactions between vloggers and viewers, we explore how female East Asian YouTube vloggers who have immigrated to Nordic countries construct fantasised and fantastical narratives around Nordic imaginaries. The discussion of multifaceted layers of Nordic imaginaries explains how Nordic life vlogs serve as a platform for young East Asian women to project their desire for a better life and cultivate subtle resilience at the juncture of postfeminism and postcolonialism.
Authors: Ramawati Anak Agung Istri Ira , Satrya I Gusti Bagus Honor
Published: September 2024

Competition in a company requires that every company must have strong Human Resources (HR). The human resources needed to run the company cannot be seen as a stand-alone part, but must be seen as a strong unit forming synergy and in this case the role of HR is very decisive. This study aims to analyze the effect of stress and motivation on job satisfaction of employees at Puritaman Department Center. This study used a sample of 34 employees. The method used in this study is a survey method with questionnaire techniques, interviews and observations with the statistical analysis tool Product and Service Solution (SPSS) 25.0 for Windows. The tests used in this research are descriptive analysis test, multiple linear regression test, and classical assumption test. The results showed that work stress had a negative and significant effect on job satisfaction at Puritaman Department Center. Work motivation has a positive and significant effect on job satisfaction at Puritaman Department Center. The implication of this research is to prove the Two Factor Theory and its relation to research variables. This study also shows the effect of stress and motivation on employee job satisfaction.
Complaints Speech Acts between Customer and Staff at Western Cafe
Authors: Putri Ni Kadek Melia , Dian Puspita Candra Komang
Published: September 2024

A complaint is an expression of dissatisfaction about an act, omission, decision, or service that expects of the feedback given by the user. This study focuses on an interaction between customer and server: Western Café In Canggu strongly conveys the interaction using speech act categories. The objective of this study is to ascertain the many classifications of speech acts employed within the context of interactions between restaurant customers and servers. The method and technique used to capture data for this study were qualitative analysis and note-taking. Furthermore, the data were analyzed by using theory: Searle’s theory of speech act (1969) and Austin (1962) is used to define and classify the categories of speech act  used  by the server and customer. The findings show from every interaction that guest and server made and expressing of directive and expressive. Directive point is the most common illocutionary act used in conversation that how make easier the hearer to understand what the speaker mean.
Kehormatan dari Shogun pada Seppuku dalam Kisah 47 Ronin
Authors: Hariandja Grace Junita Tiarida
Published: September 2024

The study aims to describe the reasons for seppuku as an honor given to the ronin in the story of the 47 Ronin. This research uses descriptive methods and a qualitative approach and uses reading and writing techniques to process data collected from excerpts from the story 47 Ronin written by John Allyn. Based on data findings, the seppuku carried out in this story was an honor given by the Shogun to the samurai because of their loyalty to their dead master even though the ronin had violated many existing rules. The Shogun granted this right because he felt that this was something that fulfilled his sense of justice. After seeing the struggle put up by the ronin and how sincerely they served their master, this moved the Shogun to give the ronin a respectful punishment. Also in the case of Lord Asano, the Shogun gave him the honor of seppuku considering Lord Asano's high rank and long service that had been passed down from his ancestors. This is all written in the story of the 47 Ronin explicitly and the author will discuss it in this research.
Analisis Idiom Bahasa Jepang dengan Unsur Hewan yang Hidup di Air
Authors: Indamatul Mustaqimah Siti Heriani , Yulita Della , Akmal Alif Maula
Published: September 2024

Penelitian ini bertujuan untuk mengetahui struktur pembentukan, makna leksikal dan makna idiomatikal pada idiom bahasa Jepang, beserta makna konotasi yang terdapat pada idiom dengan unsur hewan yang hidup di air. Metode yang digunakan dalam pengumpulan data adalah metode simak yang dilanjutkan dengan teknik catat. Sumber data yang digunakan adalah dari buku yang berjudul Kodansha’s Dictionary of Basic Japanese Idioms karya Garrison, dkk. tahun 2002. Data yang ditemukan dianalisis dengan menggunakan metode padan ekstralingual dan disajikan dengan metode informal. Penelitian ini menggunakan teori jenis makna menurut Chaer dan teori struktur pembentukan idiom menurut Akimoto. Hasil yang diperoleh dalam penelitian ini adalah terdapat 20 idiom berbahasa Jepang dengan unsur hewan yang hidup di air. Berdasarkan idiom-idiom tersebut ditemukan 8 idiom kata kerja, 11 idiom kata benda, dan 1 idiom kata sifat. Semua idiom yang ditemukan memiliki memiliki makna idiomatikal dan beberapa makna konotasi dengan 11 idiom berkonotasi negatif, 5 idiom berkonotasi positif, dan 4 idiom berkonotasi netral.
PENGARUH MODEL PJBL BERBANTUAN MEDIA QUIZIZZ TERHADAP HASIL BELAJAR BAHASA INDONESIA DI KELAS V SD
Authors: Wulandari Rizka Mei , Zumrotun Erna , Wiranti Dwiana Asih
Published: September 2024

The research was prompted by the limited diversity in the application of learning models and the inadequate use of instructional media, leading to unsatisfactory learning results for fifth-grade students at SDN Ngablak 01 Cluwak Pati. This study aimed to investigate the impact of the Problem-Based Learning (PJBL) paradigm, supported by Quizizz media, on the learning outcomes of Indonesian language in fifth-grade students at SDN Ngablak 01 Cluwak Pati. The research methodology utilized a quantitative approach, adopting an experimental procedure with a one-group pretest-posttest design. The population comprised 17 fifth-grade pupils at SDN Ngablak 01 Cluwak Pati. The sampling strategy employed was saturation sampling due to the small population size of less than 30 students, namely 17 fifth-grade kids. Consequently, all fifth-grade classes were included as the sample for this study. Information was gathered utilizing a 10-item multiple-choice assessment tool. The data analysis conducted using SPSS indicated that the utilization of PJBL, supported by Quizizz media, had a noteworthy impact on the academic achievements of fifth-grade students at SDN Ngablak 01 Cluwak Pati in relation to comprehending the primary concept of paragraphs. This effect was demonstrated by the statistical significance of the t-test, with a p-value of 0.00 < 0.05, showing that the alternative hypothesis (Ha) was accepted and the null hypothesis (H0) was rejected. Moreover, during the regression test, the obtained significance value was 0.000, which is less than 0.05. This indicates that there is a significant influence between variable X and variable Y.
Pengaruh LLingkungan di luar Sekolah Terhadap Karakter Disiplin Siswa Kelas III Sekolah Dasar
Authors: Nurmalia Laily , Susilahati Susilahati , Hartini Listiani Rita , Widiawati Hema , Sania Sania
Published: September 2024

Penelitian ini dilatarbelakangi oleh lingkungan di luar sekolah yang mempunyai kedudukan strategis sebagai modal utama pembangunan dan diharapkan dapat berperan sebagai penggerak, pengendali, mengarahkan dan meningkatkan karakter anak ke arah yang lebih baik. Karena sangat pantas bagi anak untuk meniru lingkungannya. Baik atau tidaknya karakter anak tergantung pada pendidikan yang diberikan oleh masyarakat. Berdasarkan hasil penelitian bahwa pengaruh lingkungan tempat tinggal dan lingkungan pergaulan sangat mempengaruhi sikap dan perilaku anak. Pergaulan yang buruk menimpa anak dengan cara berpikir yang menyimpang, penyebabnya juga kurangnya pengawasan orang tua, guru terhadap pergaulan anak sehari-hari. Tujuan penelitian ini adalah untuk mengukur pengaruh lingkungan komunitas sekolah terhadap pembentukan karakter siswa kelas III SDN Cinere 2. Penelitian ini dilakukan di kelas IIIA dan III B sebanyak 54 responden. Metode penelitian ini merupakan penelitian survei kuantitatif dengan teknik simple random sampling. Pengumpulan data penelitian menggunakan kuesioner (kuesioner) dalam bentuk kertas. Analisis regresi linier sederhana diperoleh nilai signifikansi sebesar 0,022 < 0,05, hal ini menyatakan bahwa variabel lingkungan masyarakat (X) berpengaruh terhadap variabel pembentukan karakter disiplin (Y). Uji signifikansi uji t lingkungan masyarakat terhadap pembentukan karakter disiplin sebesar 2,367 > 2,007 dikatakan terdapat pengaruh yang signifikan antara variabel independen lingkungan masyarakat terhadap variabel dependen karakter disiplin siswa. Uji hipotesis hasil R-Square sebesar 0,097 atau dapat dikatakan pengaruh lingkungan masyarakat (X) terhadap pembentukan karakter disiplin (Y) sebesar 9,7%. Dimana sisanya dipengaruhi oleh faktor lain.
Synthesis Of Ce/Cu/Nb Catalysts, by the One-Step Polymerization Method, Applied in the Selective Oxidation Reaction of Acetonitrile
Authors: Teixeira Thalita Andrade , Baston Eduardo Prado , Bellido Jorge David Alguiar
Published: September 2024

Objective: The objective of this study is to investigate the catalytic capacity of cerium, copper and niobium oxide catalysts in the oxidation reaction of acetonitrile, in order to test the catalytic behavior, conversion and selectivity of the catalysts; evaluate the different proportions of niobium used (0, 15, 30, 50 and 75% m.m) and compare the catalytic performance of the synthesized materials with other studies present in the literature.
 
Method: The catalysts were synthesized using the one-step polymerization method and were characterized using XRD and H2-TPR techniques. Then, they were applied in the acetonitrile oxidation reaction to be evaluated for conversion and selectivity.
 
Results and Discussion: The results obtained revealed that the catalysts played a significant role in the proposed reaction, obtaining good conversion and selectivity values, including the production of N2 as the majority.
 
Research Implications: Considering that the oxidation of acetonitrile generates polluting gases from nitrogen compounds, the research presents a method that produces an extremely low quantity of these pollutants. This method ensures better product quality, reduces energy consumption due to the lower reaction temperature and uses cheaper and more viable catalysts.
 
Originality/Value: This study contributes to the literature by being based on compounds not yet used together as catalysts and also for the proposed reaction. The relevance of the use of the catalyst is demonstrated through the results obtained, such as high conversions and selectivities to desirable products.
SISTEM PERPARKIRAN MOBIL BERPENGAMAN GANDA MENGGUNAKAN DETEKSI PLAT NOMOR DAN RADIO FREQUENCY IDENTIFICATION BERBASIS MIKROKONTROLER
Authors: Zhafiri  , Candra Henry , Sulaiman Susan , Agoes Suhartati
Published: September 2024

Sistem perparkiran pada umumnya masih menggunakan karcis atau pun kartu Radio Frequency Identification (RFID) sebagai langkah identifikasi pengguna. Hal tersebut dinilai masih kurang aman dengan menggunakan RFID sebagai proses identifikasi satu-satunya. Sedangkan proses identifikasi menjadi hal paling penting pada suatu sistem perparkiran. Maka dalam penelitian ini dirancang suatu pemodelan sistem perparkiran khusus dengan deteksi dan pengenalan citra plat nomor kendaraan menggunakan metode Canny Edge Detection dan Optical Character Recognition (OCR) dengan RFID pasif dengan menggunakan mikrokontroler Raspberry Pi 3 Model b+. Pemodelan ini menghasilkan akurasi sebesar 100% dengan jumlah percobaan sebanyak 90 kali dan variasi jarak sebesar 90 cm, 80 cm dan 70 cm. Pada hasil percobaan plat nomor DG 1487 KB pada pencahayaan 7360 lux yang dilakukan di siang hari pada pintu masuk dengan jarak 90 cm didapatkan waktu pemrosesan tercepat selama 1,0 detik sedangkan pada plat nomor DG 1671 KG pada pencahayaan 47 lux yang dilakukan di malam hari pada pintu keluar dengan jarak 70 cm didapatkan waktu pemrosesan terlama selama 8,4 detik
Komunikasi Virtual Antaranggota Kelompok Gamers Mobile Legend Poseidon
Authors: Yuditha Emmanuel Ronald , Savitri Setyo Utami Lusia
Published: September 2024

Mobile Legend is an online game in the Moba genre or Multiplayer Online Battle Arena where each player has to work together to win the game. Roles are the roles of each hero in Mobile Legends which are grouped based on their duties and functions in a game. Communication is an important factor in this game because in the game you have to have a strategy that must be carried out together, therefore teamwork is needed. Usually in the Mobile Legend game virtual communication and group communication are the main choices for players so they can carry out the strategies that have been prepared. The purpose of this research is to determine and describe virtual communication between groups within the Poseidon team. This research was conducted using a qualitative approach using the case study method. Data was obtained from interviews with four informants, observation, documentation and literature study. The research results show that communication is the most important thing in playing the Mobile Legend game and choosing the communication media to be used also has a very important role for gamers so they can communicate comfortably virtually. A team must have a leader who is the main figure in directing the players and maintaining communication so that there is no miscommunication and differences of opinion between the team.
 

Mobile Legend merupakan salah satu game online bergenre Moba atau Multiplayer Online Battle Arena di mana setiap pemain harus saling bekerja sama untuk memenangkan permainannya. Komunikasi menjadi faktor penting di dalam permainan ini karena dalam permainannya harus memiliki strategi yang harus dijalankan bersama, maka dari itu kerja sama tim diperlukan. Tujuan penelitian ini adalah untuk mendeskripsikan komunikasi virtual antaranggota kelompok di dalam tim Poseidon. Penelitian ini dilakukan dengan pendekatan kualitatif dengan metode studi kasus. Data diperoleh dari kegiatan wawancara dengan empat orang informan, observasi, dokumentasi, dan studi pustaka. Hasil penelitian menunjukkan bahwa komunikasi menjadi hal terpenting dalam bermain game Mobile Legend dan pemilihan media komunikasi yang akan digunakan juga memiliki peran yang sangat penting bagi para gamersagar dapat berkomunikasi virtual dengan nyaman. Di dalam sebuah tim harus memiliki seorang leader yang menjadi sosok utama dalam mengarahkan pemain dan menjaga komunikasi supaya tidak terjadi miskomunikasi dan perbedaan pendapat antartim.
Dinamika Pengaruh Komunikasi Persuasif terhadap Kepercayaan Nasabah dalam Konteks Industri Asuransi
Authors: Sofjan Stella , Erdiansyah Rezi
Published: September 2024

The use of persuasive communication is very much needed by insurance companies to rebuild the trust of insurance customers. In the context of business work, including marketing, advertising, product promotion, and also in the insurance industry. The purpose of this study is to determine and analyze the effect of persuasive communication on insurance customer trustResearchers use persuasive communication theory and consumer trust theory. The research approach applied is quantitative, and data is collected through the application of questionnaires. This study took a sample of 100 respondents, with the distribution of questionnaires conducted using google forms, with the condition that respondents are residents who use insurance products and aged 17-35 years. Data analysis using the program SPSS ver 26. The results of the study showed that persuasive communication has an influence on insurance customer trust as much as 83%. Persuasive communication in the insurance company environment is an important element in efforts to change the perception, mindset, and behavior of potential customers regarding insurance, especially to gain interest from those who were previously less interested.
Penggunaan komunikasi persuasif sangat dibutuhkan oleh perusahaan asuransi untuk membangun kembali kepercayaan nasabah asuransi. Dalam konteks pekerjaan bisnis, termasuk marketing, advertising, promosi produk, dan juga dalam industri asuransi. Tujuan penelitian ini adalah untuk mengetahui dan menganalisis pengaruh komunikasi persuasif terhadap kepercayaan nasabah asuransi. Peneliti menggunakan teori komunikasi persuasif dan teori kepercayaan konsumen. Pendekatan penelitian yang diterapkan adalah kuantitatif, dan data dikumpulkan melalui penerapan kuisioner. Penelitian ini mengambil sampel 100 responden, dengan penyebaran kuisioner yang dilakukan menggunakan google form, dengan syarat menjadi responden adalah populasi yang menggunakan produk asuransi dan berusia 17-35 tahun. Analisis data menggunakan program SPSS ver 26. Hasil dari penelitian menunjukkan bahwa komunikasi persuasif memiliki pengaruh terhadap kepercayaan nasabah asuransi sebanyak 83%. Komunikasi persuasif di lingkungan perusahaan asuransi merupakan elemen penting dalam usaha mengubah persepsi, pola pikir, dan perilaku calon nasabah terkait asuransi, terutama untuk mendapatkan minat dari mereka yang sebelumnya kurang tertarik.
Evaluación de la autorregulación comportamental: un estudio de validación

Authors: Garzón Umerenkova Angélica , De la Fuente Arias Jesús
Published: September 2024

Introducción.  La autorregulación es la capacidad para planear y manejar adecuadamente la propia conducta de manera flexible. Es predictora del bienestar, la salud, el rendimiento académico, entre otros. Se presenta la caracterización psicométrica del Cuestionario de Autorregulación-Abreviado (CAR-abr.) compuesto por 17 ítems. Un instrumento versátil, empleado exhaustivamente en diversos países y contextos profesionales como el educativo o el clínico.
Método.  Se realizó una validación de contenido del cuestionario para verificar su adecuación lingüística y cultural y, posteriormente, una aplicación a una muestra por conveniencia. Participaron 710 universitarios colombianos de 12 titulaciones, de 18 a 33 años (M =20.3, DE = 4.3), 31.5% hombres.
Resultados.  Los resultados indican un buen ajuste de los ítems al modelo Rasch, un adecuado funcionamiento de la escala Likert y evidencia de validez de constructo, aunque el cuestionario se beneficiaría de la inclusión de ítems de mayor dificultad. La confiabilidad fue de .84 para las personas y .98 para los ítems. La puntuación de autorregulación correlacionó en sentido positivo con el flourishing (.416** p<.01) y la salud mental (.372** p<.01), y en sentido negativo, con los malos hábitos (-.343** p<.01).
Discusión y conclusiones.  La prueba puede ser empleada en diversos contextos de medición y evaluación. Permite establecer el nivel de autorregulación con suficiente confiabilidad y evidencia de validez, de acuerdo a los resultados con la muestra empleada. Se discuten los posibles usos y limitaciones del CAR-abr. para la medición y evaluación psicológica.
Ground Vacuum Facility to Simulate Low Earth Orbit Plasma Environment
Authors: Wie-Addo Emmanuel Kofi Asuako , Ortega Jacob , Han Daoru
Published: September 2024

This paper presents a large vacuum facility (6-ft-diameter, 10-ft-long chamber) equipped with a magnetic filter-type low Earth orbit plasma source. A recommended operating envelope for the plasma source was established through single-point measurements by varying the discharge currents of the plasma source and the gas flow rates. A three-axis translation stage was fabricated and tested with 2D and 3D scans of the simulated plasma environment. The measured plasma density during this study was between [Formula: see text] for the electrons and [Formula: see text] for the ions, whereas the electron and ion temperatures ranged from 0.55 to 2.06 eV and 1 to 3 eV, respectively. The simulated plasma environment compares well with orbital equivalents, specifically the F layers of the ionosphere.
Treatment for the Singularity Problem in the Phase Segregation
Authors: Xiong Huajie , Wang Zhaoli , Kairen Xu , Yue Huaijun , Zhou Zhihong
Published: September 2024

In the Eulerian–Eulerian two-fluid model, comprising air and droplets, singularities often arise as the phase fraction of dispersed droplets approaches zero. The nonconservative momentum equations can address this issue, but it will lead to inaccurate solutions when encountering discontinuities. To tackle the singularity problem and ensure accurate solutions for the droplet field, a novel adaptive form of momentum equations is proposed. The adaptive form defaults to the conservative form and smoothly transitions to the phase-intensive form when the phase fraction falls below a critical value, specifically 1/1000 of the inlet. The LU-SGS algorithm, enhanced with the inner iteration step method, is employed for numerical solutions of the droplet field. Comparative analysis reveals that the discrepancy between the results obtained from the adaptive form and the conservative form is negligible, under 0.5‰. Notably, with larger Courant numbers, the conservative form diverges from waterless regions despite imposing the minimum phase fraction constraint. Conversely, the adaptive form consistently maintains a Courant number of five times or more, potentially exceeding a hundredfold in complex flows. Although the adaptive form moderately increases complexity and computational time for a single time step, the improvement of the maximum Courant number will bring significant computational efficiency advantages. Moreover, the adaptive form holds promise for application in various other multiphase flow scenarios.
Optimal Sparsity in Nonlinear Nonparametric Reduced Order Models for Transonic Aeroelastic Systems
Authors: Candon Michael , Hale Errol , Delgado-Gutiérrez Arturo , Marzocca Pier , Balajewicz Maciej
Published: September 2024

Machine learning and artificial intelligence algorithms typically require a large amount of data for training. This means that for nonlinear aeroelastic applications, where small training budgets are driven by the high computational burden associated with generating data, the usability of such methods has been limited to highly simplified aeroelastic systems. This paper presents a novel approach for the identification of optimized sparse higher-order polynomial-based aeroelastic reduced order models (ROMs) to significantly reduce the amount of training data needed without sacrificing fidelity. Several sparsity promoting algorithms are considered, including rigid sparsity, least absolute shrinkage and selection operator (LASSO) regression, and orthogonal matching pursuit (OMP). The study demonstrates that through OMP, it is possible to efficiently identify optimized [Formula: see text]-sparse nonlinear aerodynamic ROMs using only aerodynamic response information. This approach is exemplified in a three-dimensional aeroelastic stabilator model experiencing high-amplitude freeplay-induced limit cycles. The comparison shows excellent agreement between the ROM and the full-order aeroelastic response, including the ability to generalize to new freeplay and velocity index values, with online computational savings of several orders of magnitude. The development of an optimally sparse ROM extends previous higher-order polynomial-based ROM approaches for feasible application to complex three-dimensional nonlinear aeroelastic problems, without incurring significant computational burdens or loss of accuracy.
Numerical Investigation of Aero-Optical Distortions from High-Speed Turbulent Boundary Layers
Authors: Castillo Pedro , Gross Andreas , Miller Nathan E. , Lynch Kyle P. , Guildenbecher Daniel R. , Gordeyev Stanislav
Published: September 2024

Wall-modeled large-eddy simulations of turbulent boundary-layer flows over a flat plate at Mach 3.5, 7.87, and 13.64 were carried out, and the aero-optical distortions resulting from density fluctuations were investigated. The conditions for the Mach 3.5 case match those of a direct numerical simulation in the literature. The Mach 7.87 conditions are representative of the Hypersonic Wind Tunnel at Sandia National Laboratories, and the Mach 13.64 conditions match those of the Arnold Engineering Development Complex Hypervelocity Tunnel 9. The wall-modeled large-eddy simulations were validated using available experimental and DNS reference data. The normalized root-mean-square optical path difference for all three cases is in good agreement with respective data obtained from reference direct numerical simulations and experiments (within 1.53% for [Formula: see text], 1.25% for [Formula: see text], and 12% for [Formula: see text], compared to numerical data). Above [Formula: see text], the normalized path difference obtained from the simulations is above the value predicted by a semi-analytical relationship by Notre Dame University. With increasing Mach number, the bulk contribution to the total optical distortion shifts toward the boundary-layer edge. In addition, a proper orthogonal decomposition reveals that the nature of the dominant density fluctuations, which are located near the boundary-layer edge, changes from three-dimensional to two-dimensional. Understanding how the coherent structures contribute to the optical path difference may pave a way toward devising active flow control strategies geared toward a reduction of the optical path difference.
Energy management of the residential smart microgrid with optimal planning of the energy resources and demand side
Authors: Chammam Abdeljelil , Alkhazaleh Hamzah Ali , Altalbawy Farag M. A. , Ved Amit , Singh Ashish , Kumar Abhinav , Sapaev I.B. , Alanssari Ali Ihsan , Abosaoda Munther Kadhim , Romaina Y.S.
Published: September 2024

The study specifically aimed to model the optimal operation of these appliances based on their usage patterns, rather than relying on the capacity of demand flexibility in demand response (DR) and energy pricing. The modeling operation of the appliances is done using two-layer energy optimization. In this optimization, energy consumption by appliances is reshaped via DR and load shifting in first-layer optimization. Then, minimizing the consumption costs and consumers’ discomfort in the second layer is formulated with consideration of the optimized consumption from the first layer. The lp-metric method is employed to solve the proposed optimization in the GAMS software. Finally, the efficiency of the two-layer optimization is confirmed using testing proposed case studies in the numerical simulation.