bluuebunny/crossref_metadata_2025 huggingface dataset:
Formation of A Hardened Surface Layer Under Complex Laser Action on the Cutting Edge of Parts Made of Structural Carbon Steels
Authors: Minaev I. V. , Kutepov S. N. , Klementyev D. S. , Ageev E. V. , Zhurba D. V.
Published: July 2023

The purpose of the work was to study the effect of laser modification of the cutting edge on changes in the structure and mechanical properties of the surface layer of parts made of hot–rolled structural carbon steels of grades 20, 35, 45 using a fiber laser.Methods. Structural carbon steels of grades 20, 35, 45 were selected as the objects of the study. To study the effect of laser modification on changes in the structure and mechanical properties of machine parts using laser cutting, special samples were made in the form of plates with a thickness of 2 mm (st20 and st45) and 4 mm (st35). After gas laser cutting, laser modification of the Q-switch cutting edge was performed with a fiber pulsed laser.Results. The regularities of changes in the structure of the zone of gas-laser thermal exposure after laser treatment (cutting, modification) are revealed. It has been established that repeated laser treatment (laser modification) of the cutting edge does not lead to a change in the structural components and microhardness in the zone of gas-laser thermal effects obtained after laser cutting. It has been established that the nature of the microhardness change is the same for all the studied steel grades: the highest values are reached near the surface of gas-laser treatment and are, for example, for steel grade 35 470-560 HV, which is 3,2-3,9 times greater than the initial microhardness (145 HV). Thus, a hardened layer with increased wear resistance is formed on the surface of the part after laser treatment. It is shown that the use of laser surface modification as an additional operation in the manufacture of parts by laser cutting makes it possible to improve the quality (roughness) of the surface layer. At the same time, the greatest effect of reducing roughness is given by laser modification in three passes along the X-Y plane.Conclusion. The results obtained can be used in the creation of resource-saving material processing processes.
Gamification and Soft Skills Assessment in the Development of a Serious Game: Design and Feasibility Pilot Study
Authors: Altomari Luca , Altomari Natalia , Iazzolino Gianpaolo
Published: July 2023

Background

The advent of new technologies has had a profound impact on the labor market, transforming the way we work and interact with each other. With the rise of digital tools and platforms, gamification has emerged as a powerful technique for enhancing productivity and engagement in various fields, including human resource management. In particular, gamification has been found to be effective in developing and assessing soft skills, which play a critical role in determining the success of individuals, teams, and organizations.

Objective

We present a serious game that identifies the most sought-after skills in the job market and offers feedback, and we provide a set of guidelines for the creation of serious games.

Methods

We present the serious game Among the Office Criticality (AOC). The AOC game structure involves a set of sequence analysis techniques, which is known as process mining.

Results

The pilot study findings indicate that the game is both engaging and beneficial to subjects, suggesting that the results align with current theoretical perspectives. Furthermore, the study suggests that the obtained data can be extended to the broader population.

Conclusions

This study illustrates a serious game structured according to the needs of the labor market and developed to put the user at the center, using evaluation techniques consistent with the literature, with the aim of constituting an interdisciplinary approach suitable for adequately assessing users and creating value for them.
The Role of Large Language Models in Medical Education: Applications and Implications
Authors: Safranek Conrad W , Sidamon-Eristoff Anne Elizabeth , Gilson Aidan , Chartash David
Published: July 2023

Large language models (LLMs) such as ChatGPT have sparked extensive discourse within the medical education community, spurring both excitement and apprehension. Written from the perspective of medical students, this editorial offers insights gleaned through immersive interactions with ChatGPT, contextualized by ongoing research into the imminent role of LLMs in health care. Three distinct positive use cases for ChatGPT were identified: facilitating differential diagnosis brainstorming, providing interactive practice cases, and aiding in multiple-choice question review. These use cases can effectively help students learn foundational medical knowledge during the preclinical curriculum while reinforcing the learning of core Entrustable Professional Activities. Simultaneously, we highlight key limitations of LLMs in medical education, including their insufficient ability to teach the integration of contextual and external information, comprehend sensory and nonverbal cues, cultivate rapport and interpersonal interaction, and align with overarching medical education and patient care goals. Through interacting with LLMs to augment learning during medical school, students can gain an understanding of their strengths and weaknesses. This understanding will be pivotal as we navigate a health care landscape increasingly intertwined with LLMs and artificial intelligence.
Underestimated Factors Regarding the Use of Technology in Daily Practice of Long-Term Care: Qualitative Study Among Health Care Professionals (Preprint)
Authors: Groeneveld Sjors W M , den Ouden Marjolein E M , van Gemert-Pijnen J E W C , Verdaasdonk Rudolph M , van Os-Medendorp Harmieke
Published: July 2023

BACKGROUND

Increasing life expectancy is resulting in a growing demand for long-term care; however, there is a shortage of qualified health care professionals (HCPs) to deliver it. If used optimally, technology can provide a solution to this challenge. HCPs play an important role in the use of technology in long-term care. However, technology influences several core aspects of the work that HCPs do, and it is therefore important to have a good understanding of their viewpoint regarding the use of technology in daily practice of long-term care.

OBJECTIVE

The aim of this study was to identify the factors that HCPs consider as relevant for using technology in daily practice of long-term care.

METHODS

In this qualitative study, 11 focus groups were organized with 73 HCPs. The focus group discussions were guided by an innovative game, which was specifically developed for this study. The content of the game was categorized into 4 categories: health care technology and me; health care technology, the patient, and me; health care technology, the organization, and me; and facilitating conditions. The perspectives of HCPs about working with technology were discussed based on this game. The focus groups were recorded and transcribed, followed by an inductive thematic analysis using ATLAS.ti 9x (ATLAS.ti Scientific Software Development GmbH).

RESULTS

Overall, 2 main domain summaries were developed from the data: technology should improve the quality of care and acceptance and use of technology in care. The first factor indicates the need for tailored and personalized care and balance between human contact and technology. The second factor addresses several aspects regarding working with technology such as trusting technology, learning to work with technology, and collaboration with colleagues.

CONCLUSIONS

HCPs are motivated to use technology in daily practice of long-term care when it adds value to the quality of care and there is sufficient trust, expertise, and collaboration with colleagues. Their perspectives need to be considered as they play a crucial part in the successful use of technology, transcending their role as an actor in implementation. On the basis of the findings from this study, we recommend focusing on developing technology for situations where both efficiency and quality of care can be improved; redefining the roles of HCPs and the impact of technology hereon; involving HCPs in the design process of technology to enable them to link it to their daily practice; and creating ambassadors in care teams who are enthusiastic about working with technology and can support and train their colleagues.
Assessing How Risk Communication Surveillance Prompts COVID-19 Vaccine Acceptance Among Internet Users by Applying the Situational Theory of Problem Solving: Cross-sectional Study (Preprint)
Authors: Jin Qiang , Raza Syed Hassan , Yousaf Muhammad , Zaman Umer , Ogadimma Emenyeonu C , Shah Amjad Ali , Core Rachel , Malik Aqdas
Published: July 2023

BACKGROUND

The World Health Organization has recently raised concerns regarding the low number of people fully vaccinated against COVID-19. The low ratio of fully vaccinated people and the emergence of renewed infectious variants correspond to worsening public health. Global health managers have highlighted COVID-19 vaccine–related infodemics as a significant risk perception factor hindering mass vaccination campaigns.

OBJECTIVE

Given the ambiguous digital communication environment that has fostered infodemics, resource-limited nations struggle to boost public willingness to encourage people to fully vaccinate. Authorities have launched some risk communication–laden digital interventions in response to infodemics. However, the value of the risk communication strategies used to tackle infodemics needs to be evaluated. The current research using the tenets of the Situational Theory of Problem Solving is novel, as it explores the impending effects of risk communication strategies. The relationship between infodemic-induced risk perception of COVID-19 vaccine safety and risk communication actions to intensify willingness to be fully vaccinated was examined.

METHODS

This study used a cross-sectional research design vis-à-vis a nationally representative web-based survey. We collected data from 1946 internet users across Pakistan. Participants voluntarily participated in this research after completing the consent form and reading ethical permissions. Responses were received over 3 months, from May 2022 to July 2022.

RESULTS

The results delineated that infodemics positively affected risk perception. This realization pushed the public to engage in risky communicative actions through reliance on and searches for accurate information. Therefore, the prospect of managing infodemics through risk information exposure (eg, digital interventions) using the situational context could predict robust willingness to be fully vaccinated against COVID-19.

CONCLUSIONS

These pioneering results offer strategic considerations for health authorities to effectively manage the descending spiral of optimal protection against COVID-19. This research concludes that the likelihood of managing infodemics using situational context through exposure to relevant information could improve one’s knowledge of forfending and selection, which can lead to robust protection against COVID-19. Hence, more situation-specific information about the underlying problem (ie, the selection of an appropriate vaccine) can be made accessible through several official digital sources to achieve a more active public health response.
Comparing Explainable Machine Learning Approaches With Traditional Statistical Methods for Evaluating Stroke Risk Models: Retrospective Cohort Study (Preprint)
Authors: Lolak Sermkiat , Attia John , McKay Gareth J , Thakkinstian Ammarin
Published: July 2023

BACKGROUND

Stroke has multiple modifiable and nonmodifiable risk factors and represents a leading cause of death globally. Understanding the complex interplay of stroke risk factors is thus not only a scientific necessity but a critical step toward improving global health outcomes.

OBJECTIVE

We aim to assess the performance of explainable machine learning models in predicting stroke risk factors using real-world cohort data by comparing explainable machine learning models with conventional statistical methods.

METHODS

This retrospective cohort included high-risk patients from Ramathibodi Hospital in Thailand between January 2010 and December 2020. We compared the performance and explainability of logistic regression (LR), Cox proportional hazard, Bayesian network (BN), tree-augmented Naïve Bayes (TAN), extreme gradient boosting (XGBoost), and explainable boosting machine (EBM) models. We used multiple imputation by chained equations for missing data and discretized continuous variables as needed. Models were evaluated using C-statistics and F1-scores.

RESULTS

Out of 275,247 high-risk patients, 9659 (3.5%) experienced a stroke. XGBoost demonstrated the highest performance with a C-statistic of 0.89 and an F1-score of 0.80 followed by EBM and TAN with C-statistics of 0.87 and 0.83, respectively; LR and BN had similar C-statistics of 0.80. Significant factors associated with stroke included atrial fibrillation (AF), hypertension (HT), antiplatelets, HDL, and age. AF, HT, and antihypertensive medication were common significant factors across most models, with AF being the strongest factor in LR, XGBoost, BN, and TAN models.

CONCLUSIONS

Our study developed stroke prediction models to identify crucial predictive factors such as AF, HT, or systolic blood pressure or antihypertensive medication, anticoagulant medication, HDL, age, and statin use in high-risk patients. The explainable XGBoost was the best model in predicting stroke risk, followed by EBM.

CLINICALTRIAL
A Perspective on Crowdsourcing and Human-in-the-Loop Workflows in Precision Health (Preprint)
Authors: Washington Peter
Published: July 2023

UNSTRUCTURED

Modern machine learning approaches have led to performant diagnostic models for a variety of health conditions. Several machine learning approaches, such as decision trees and deep neural networks, can, in principle, approximate any function. However, this power can be considered to be both a gift and a curse, as the propensity toward overfitting is magnified when the input data are heterogeneous and high dimensional and the output class is highly nonlinear. This issue can especially plague diagnostic systems that predict behavioral and psychiatric conditions that are diagnosed with subjective criteria. An emerging solution to this issue is crowdsourcing, where crowd workers are paid to annotate complex behavioral features in return for monetary compensation or a gamified experience. These labels can then be used to derive a diagnosis, either directly or by using the labels as inputs to a diagnostic machine learning model. This viewpoint describes existing work in this emerging field and discusses ongoing challenges and opportunities with crowd-powered diagnostic systems, a nascent field of study. With the correct considerations, the addition of crowdsourcing to human-in-the-loop machine learning workflows for the prediction of complex and nuanced health conditions can accelerate screening, diagnostics, and ultimately access to care.
Praktik Self-Tracking di Media Sosial Pemuda pada Transisi Menuju Dunia Kerja
Authors: Hayati Mutiara Nur
Published: July 2023

This study explores the strategies and efforts that have been made against the risks of using social media for fresh graduate who are looking for job. These risks are obtained from personal historical data and surveillance by other parties, especially Human Resources. These strategies and efforts are carried out as individual goals in modifying employable identity or for getting a job. Therefore, the research questions are how fresh graduate treat personal data about themselves that are shared on social media and how digital self-tracking forms the relationship between digital technology and self-identity. Through a qualitative approach using digital ethnographic methods and self-tracking theory by Deborah Lupton, the authors attempt to answer the questions in this study by conducting interviews and observations on six informants who carry two identities, that is fresh graduate and job seekers. This study showed that the informants carried out two strategies on personal historical data: cleaning and displaying. Furthermore, when doing self-tracking, informants also establish relations with digital technology to produce negotiation related to the formation of the expected self-hood, which at the end of the study shows not only the goal of getting a job but also efforts for self-reflection, learning, and growing process.
Tres proyectos de identidad indígena en la provincia de Chiloé, Chile (siglos XXI-XVIII)
Authors: Catepillan Tomás
Published: July 2023

This article analyzes three understandings of indigenous identity in Chile’s Chiloé province using an approach that combines archive work, bibliographical material and conversations with relevant stakeholders. It proposes a study focused on the differences between three definitions of ‘indigenous’ or ‘indian’ in Chiloé: the ethnic invention of the veliches in the XXI century, the leftist Mapuchization in the first half of the XX century, and the monarchic corporatism of the Republic of Indians (república de indios) in the late XVIII century. These differences or mismatches reveal the interactive, unstable and circumstantial nature of any identity as well as the connections and global dimensions of social processes that are usually interpreted from a particularistic viewpoint that disregards history. This article does not set out to prove the misrepresentation of indigenous identity. Rather, it proposes that to assume its historicity is to highlight our creativity (both as a capacity and a need). In the same vein, such an assumption is an attractive means of freeing ourselves from the whirlwind of ethnic nationalism and conservative fiction, the self-exoticization and the folkloric view of multiculturalism.
A NORTH-SOUTH ECONOMIC GROWTH MODEL: THE ROLE OF INCOME DISTRIBUTION
Authors: Dias de Carvalho Luciano , Gabriel Luciano Ferreira
Published: July 2023

The main objective of this article is to present in a balance of payment constrained growth (BPCG) model the role of income distribution and technological progress in the growth pattern of a developing economy. For this purpose, an index of the quality of exports and the existence of distributive conflict in the labor market are taken into consideration. The technological progress of the South depends on income distribution and the technological gap. Based on this framework, four types of growth patterns —such as those explained in Fajnzylberg (2000)— are possible: 1) dynamic and disarticulated, 2) integrated and stagnant, 3) disarticulated and stagnant, and 4) dynamic with social equity. Several equilibrium possibilities (including multiple equilibria) were discussed. Furthermore, the South catching up conditions were highlighted.
Interpretación a nivel molecular del enlace de hidrógeno en el agua:
Authors: Pinto Cañón Gabriel
Published: July 2023

Se introduce la relevancia de la consideración de las ideas o concepciones alternativas, y su consecuencia en los errores conceptuales de los alumnos. Seguidamente, se explican los resultados alcanzados en una investigación realizada sobre su comprensión del enlace de hidrógeno, a nivel atómico-molecular, en el agua líquida. Para ello, se analizan las respuestas de alumnos de primer curso de Grado en Ingeniería Química y de Máster de Formación del Profesorado, al solicitarles que lo describieran, con ayuda de un dibujo o esquema, a partir de sus conocimientos adquiridos en cursos anteriores. No se encontraron diferencias significativas entre alumnos de las citadas titulaciones ni en los tres cursos académicos durante los que se desarrolló el estudio. Un 48% fue capaz de razonar aceptablemente la cuestión, y en el resto, se encontraron concepciones alternativas que implican aspectos como: considerar atracciones entre átomos de hidrógeno de distintas moléculas de H2O; entender que se refiere a los enlaces covalentes O-H de cada molécula de H2O; interpretar que cada átomo de H se une por enlace covalente a dos de O de sendas moléculas de H2O; y considerar formas moleculares extravagantes o ‘ingenuas’, entre otros. Finalmente, se describe cómo esta información es de utilidad para abordar la práctica educativa y, especialmente, el conocimiento didáctico del contenido.
Desigualdad de oportunidades en Nuevo León, México
Authors: Monroy-Gómez-Franco Luis , Vélez Grajales Roberto
Published: July 2023

En el presente artículo se utilizó una novedosa fuente de información (ESRU-EMOVI NL) para estimar, por primera vez, la cota inferior de la magnitud de la desigualdad de oportunidades de una entidad federativa mexicana. Usando el criterio ex-ante de desigualdad de oportunidades, se encontró una cota inferior que representa 35% de la desigualdad en recursos económicos en el estado. Al igual que a nivel nacional, los principales contribuyentes a la desigualdad de oportunidades en la entidad son: la desigualdad en los recursos económicos de origen y la educación de los padres. Sin embargo, en contraste con lo observado, para todo el país las desigualdades asociadas al tono de piel de las personas contribuyen con 5% de la desigualdad de oportunidades observada.
Effects of Pre-education Program Supporting Teaching Practicum on Teaching Performance Ability of Pre-service Elementary Teachers
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Ha Moon-sun , Sol Yang-hwan , Hwang Myung-hwan
Published: July 2023

Objectives The purpose of this study is to examine whether a pre-education program supporting teaching practicum is effective in improving the teaching performance ability of pre-service elementary teachers.
Methods To this end, a pre-education program supporting teaching practicum was conducted for a total of 55 students (experimental group: 34, control group: 21) at G University of Education, and then the difference between the pre- and post-test of teaching performance ability was verified.
Results As a result of the dependent sample t-test, the experimental group showed a statistically significant difference in the mean difference between pre- and post-teaching performance ability, but the control group did not. Next, as a result of conducting ANCOVA and MANCOVA, it was found that the level of teaching performance ability was significantly improved in the experimental group than in the control group.
Conclusions The pre-education program supporting teaching practicum in this study is a program that helps pre-service teachers improve their teaching performance ability and ultimately increases the effectiveness of teaching practicum.
A Case Study of Online Writing Class about Life Culture for Female Immigrants through Marriage
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Jeong Eun , Lee Yun Jung
Published: July 2023

Objectives The purpose of this study is to perform a case study of real-time online writing class for female immigrants through marriage in order to investigate the class patterns from the female immigrants perspective and to examine their cultural understanding and response by exploring the characteristics of online writing class on the topics of life and culture.
Methods As research participants, 11 female immigrants through marriage who had been taking the basic Korean language class at ** Multicultural Family Support Center in Gyeonggi-do were recruited. After 14 sessions of class, in-depth interviews were conducted based on a semi-structured questionnaire, and the data were analyzed with an analytic induction method.
Results First, the advantages of the real-time online writing class for female immigrants through marriage included location flexibility, time saving, and learning and taking care of children at the same time. On the other hand, difficulty in asking questions and keeping focused was answered as a disadvantage. Second, as for the characteristics of the real-time online class with the topics of life and culture, it provided grammatical knowledge using familiar topics of life and culture. Learning about life and culture in neighboring countries and gaining knowledge on a range of cultures piqued the students’ intellectual curiosity. Third, for the understanding of culture in the research subjects, they took a flexible attitude toward culture in the process of actively researching and sharing data from outside textbooks by thinking outside the standard ideas of other cultures. They showed a difference in the level of language proficiency and understanding of culture. Due to the limitations of the virtual platform, however, the direct experience was not available for the students.
Conclusions In the real-time online writing class, life and culture topics were familiar to the female immigrants. Therefore, a range of grammatical and linguistic applications was provided, and at the same time, the students were able to broaden their understanding of multicultural culture.
The Relationship between Intolerance of Uncertainty and Career Indecision: The Serial Mediating Effects of Self-Compassion and Fear of Negative Evaluation in Undergraduates
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Ha Young , KIM Na-Rae
Published: July 2023

Objectives The purpose of this study was to verify whether self-compassion and fear of negative evaluation were double-mediated in the relationship between intolerance of uncertainty and career indecision for college students. It was to apply the model of career adaptation of Savicaks(2013, 2020) to college students who are about to transition from school to work.
Methods A survey was conducted on intolerance of uncertainty, self-compassion, fear of negative evaluation, and career indecision for college students. Data from 353 participants were analyzed using SPSS 26.0 and AMOS 27.0.
Results A significant correlation was found between intolerance of uncertainty, self-compassion, fear of negative evaluation, and career indecision. And self-compassion and fear of negative evaluation serially mediated the relationship between Intolerance of uncertainty and career indecision. In other words, those who show less tolerance with uncertainty have less compassion on themselves, which makes career decisions difficult due to the fear that others will also negatively evaluate themselves.
Conclusions In the ever-changing era of IT and COVID-19, it means that resilience to uncertainty, self-compassion, and fear of negative evaluation are important in dealing with college students' career decision. Finally, the implications and limitations of this study were discussed.
Social Distance, Positioning, and Investment of an Arabic Student in a US Elementary ESL Classroom with Korean Peers
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Park Hyona
Published: July 2023

Objectives The aim of this study was to examine how an Arabic student formed social distance from his Korean peers and positioned himself in an Elementary ESL classroom in the United States, and how his social distance and positioning influenced his ESL learning and construction of investment. The guiding concepts of this study were Norton Peirce’s (1995) concept of investment, which also served as a theoretical framework, and Schumann’s (1976) concept of social distance.
Methods One Arabic student in the fifth grade and his ESL teacher participated as main informants in this study, and four Korean students were secondary participants. In this qualitative research, data sources included non- participant classroom observations and interviews with the main participants. Thematic coding served as an analytic framework.
Results It was found that as the Arabic student formed social distance from Korean students, he had difficulty with language learning, suggesting that if he formed greater social proximity, he would have a more supportive language learning environment. Also, although his present positioning (Kayi-Aydar, 2014) as needing help in the ESL classroom may suggest a negative language learning circumstance for the Arabic student, the social interaction and community involvement of getting that help may broaden his learning spectrum and construction of investment. However, it is important to keep in mind that young students’ social distance and positioning is not fixed but keeps evolving in relation to social power (Norton, 1997), which may influence construction of investment.
Conclusions Thus, the ESL teacher’s role is critical, particularly the ability to provide diverse language pedagogies that are applicable to students who are in foreign situations like that of the Arabic student and other students.
The mediating effect of Cognitive Reappraisal and Conflict Rrsolution Strategy between Stressful Life Events and Mid-Life Crisis
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Gil Yejin , Kim Yeonghee
Published: July 2023

Objectives The perpose of this study was mediating effect of cognitive reappraisal and Conflict Rrsolution strategy between stressful life events and mid-life crisis. Furthermore to investigate the sequential mediating effects of cognitive reappraisal and conflict resolution strategy between stressful life events and mid-life crisis.
Methods A total of 407 middle-aged men and women participated in the study and SPSS 21.0 is used to test between each factors. The collected date was analysed by descriptive statistics, correlation analysis, regression analysis and Standerd multiple regression analysis using SPSS(ver.21.0) to verify the moderated mediating effect.
Results The results of this study are summarized as follows. First we found the positive corelation among perceived stress of recent life events and mid-life crisis. Negative corelation between adaptive conflict resolution strategy and mid-life crisis however positive corelation among maladaptive conflict resolution strategy and mid-life crisis. second, it was confirmed that the cognitive reappraisal arising from perceived stress of recent life events and mid-life crisis was the partial mediation. Third, It was confirmed that the maladaptive conflict resolution strategy arising from perceived stress of recent life events and mid-life crisis was the partial mediation. Forth, it was found that cognitive reappraisal and adaptive conflict resolution strategy showed sequential mediating effects in the relationship between perceived stress of recent life events and mid-life crisis. Fifth, cognitive reappraisal and maladaptive conflict resolution strategy were sequentially mediated between perceived stress of recent life events and mid-life crisis.
Conclusions Based on these research results, The process of perceived stress of recent life events to mid-life crisis, not only improving cognitive reappraisal and adaptive conflict resolution strategy but also reducing maladaptive conflict resolution strategy will be effective intervention.
Hamiltonicity and Eulerianity of Some Bipartite Graphs Associated to Finite Groups
Authors: Qonita Niswah , Susanti Yeni
Published: July 2023

Let G be a finite group. Associate a simple undirected graph Γ_G with G, called bipartite graph associated to elements and cosets of subgroups of G, as follows : Take G ∪ S_G as the vertices of Γ_G, with S_G is the set of all subgroups of a group G and join two vertices a ∈ G and H ∈ S_G if and only if aH = Ha. In this paper, hamiltonicity and eulerianity of Γ_G for some finite groups G are studied. In particular, it is obtained that for any cyclic group G, Γ_G is hamiltonian if and only if |G| = 2 and Γ_G is eulerian if and only if |G| is even non-perfect square number. Also, we prove that Γ_Dn is eulerian if k is even and n = 2k and for some other cases of n, Γ_Dn is not eulerian.
Influence of the content of chromium in low-carbon bainitic-martensitic steels on the efficiency
Authors: Korotovskaya S. V. , Sych O. V. , Khlusova E. I. , Zabavicheva E. V.
Published: July 2023

The effect of chromium content on phase transformations in low-carbon high-strength steel for shipbuilding has been studied. Under industrial conditions, two rolled sheets 50 mm thick were manufactured from steel with a chromium content of 1.08% and 0.42% using hot rolling technology, followed by furnace hardening and high-temperature tempering, standard mechanical properties and performance characteristics were determined. With the help of optical and transmission electron microscopy, the structural features of steel were revealed.
Pengembangan Multimedia Interaktif Menggunakan Lectora Inspire pada Materi Pengendalian Hayati untuk Mata Kuliah Entomologi
Authors: Galih Permata Wella , Johari Asni , Sadikin Ali
Published: July 2023

Lectora Inspire learning media is a website-based learning media innovation that can be used to make presentations. This study aimed to develop interactive multimedia learning media using Lectora Inspire on biological control material for entomology courses to determine student responses and lecturer responses to the resulting multimedia learning media. This research was conducted on biology education students who took entomology elective courses (MKP) classes of 2017 and 2018. The trials were conducted on six (small group) and 14 (large group) students. This type of research is Research and Development (R&D) with the ADDIE model. Data collection instruments were validation sheets for material and media experts, lecturer interviews, and student and lecturer perception questionnaires. The results of the assessment of material experts are 95%, and media experts are 95%. The results of the small group trial were 87.8% in the very feasible category, and the large group was 87.3% very feasible. Based on the data analysis, it can be concluded that Lectora Inspire media on biological control material is suitable for use in learning.
Analisis Kemampuan Pemahaman Matematik Siswa SMP Dengan Materi Kubus Dan Balok
Authors: Fasya Rizal Fahmy , Ferdianto Ferry
Published: July 2023

Matematika merupakan salah satu bagian yang penting dalam ilmu pengetahuan. Apabila dilihat dari sudut pengklasifikasian bidang ilmu pengetahuan, matematika termasuk ke dalam ilmu-ilmu eksakta yang lebih memerlukan pemahaman dibandingkan hapalan. Adapun tujuan dari penelitian ini adalah untuk meninjau sejauh mana kemampuan pemahaman matematika siswa sekolah menengah pertama yang meliputi indikator menyatakan ulang konsep yang telah dipelajari, menerapkan rumus pada kasus matematika serta melaksanakan perhitungan rutin dan algoritmik. Jenis penelitian ini merupakan penelitian kuantitatif. Untuk populasi dari penelitian ini adalah seluruh siswa kelas VIII MTS PUI Banjaran dengan sampel penelitiannya yaitu 10 orang siswa kelas VIII. Teknik pengambilan sampel yang digunakan yaitu random sampling. Adapun instrumen pengumpulan data yang digunakan yaitu soal tes berbentuk uraian yang berjumlah lima soal. Untuk teknik analisis data yang digunakan yaitu statistik deskriptif. Hasil penelitian yang diperoleh menunjukkan bahwa pemahaman konsep siswa sebesar 30%. Hal ini dapat disimpulkan bahwa siswa masih kurang dalam kemampuan pemahaman konsep matematika.
Efektivitas Pembelajaran Kooperatif Terhadap Kemampuan Pemecahan Matematis Siswa SD: Metode Studi Literatur Review
Authors: Hijrilliawanni Dhea Rizqkhita , Khoirina Haninda Putri , Kuncoro Septian Zuhri , Nihmah Septiyani Zahrotun , Aditia Ismaya Erik , Fakhriyah Fina
Published: July 2023

Model pembelajaran kooperatif adalah model belajar secara berkelompok. Penelitan ini memiliki tujuan mereview artikel untuk mencari bukti secara efisien dan klinis dalam membutikan keefektivitasan pembelajaran kooperatif terhadap kemampuan pemecahan matematis siswa sd. Penelitian ini menggunakan metode SLR (Systematic Literature Review). Pengambilan sampel data dengan menganalisis 200 artikel dari publish of perish pada database google scholar kemudian disaring lagi menjadi 14 artikel. Dengan 14 artikel ini dilakukan penyaringan kembali sehingga menemukan 5 artikel untuk di teliti dengan model pembelajaran kooperatif tipe model TGT, STAD,TAPPS, Make A Match, dan Think Talk Write (TTW) mempengaruhi kemampuan pemecahan matematis kearah lebih baik dibandingkan dengan pembelajaran kelas kontrol dengan kemampuan pemecahan matematis kurang. Dengan pembelajaran kooperatif terhadap kemampuan pemecahan matematis ini dapat diaplikasikan untuk proses kegiatan belajar di sekolah untuk memecahkan permasalahan matematis.
Penerapan Model Problem Based Learning Untuk Meningkatkan Hasil Belajar IPA Siswa MTs Ma’arif Bakalan
Authors: Khasanah Uswatun , Fatkhurrohman Fatkhurrohman , Fatiatun Fatiatun
Published: July 2023

Latar belakang dalam penelitian ini ada pada pembelajaran IPA di kelas VII MTs Ma’arif Bakalan yang masih menerapkan pendekatan Teacher Centered Learning (TCL). Tujuan dari penelitian ini antara lain: (1) Untuk mengetahui penerapan model problem based learning dalam pembelajaran IPA siswa kelas VII MTs Ma’arif Bakalan. (2) Untuk mengetahui peningkatan hasil belajar IPA setelah diterapkannya model problem based learning pada siswa kelas VII MTs Ma’arif Bakalan. (3) Untuk mengetahui perbedaan hasil belajar IPA antara kelas yang menggunakan model problem based learning dengan kelas yang tidak menggunakan model problem based learning pada siswa kelas VII MTs Ma’arif Bakalan. Metode yang diterapkan pada penelitian ini ialah metode    eksperimen melalui model quasi eksperiment serta desain non equivalent control group. Populasi yang dipilih ialah siswa kelas VII. Sampel yang diambil yaitu kelas VII A dengan total 20 siswa serta VII B dengan total 20 siswa. Hasil Penelitian menunjukan bahwa  berdasarkan hasil posttest menggunakan uji N-Gain kelas eksperimen meningkat sebanyak 0,57 dan kelas kontrol didapat N-Gain sebanyak 0,23. Dengan ini telah terbukti adanya kenaikan hasil belajar IPA kelas eksperimen dengan menerapkan model problem based learning dengan kategori sedang. Terdapat selisih perbedaan antara hasil belajar IPA kelas dengan model problem based learning dan kelas tidak dengan model problem based learning. Terbukti dengan menggunakan uji-t yaitu Ho ditolak yang ditunjukkan dengan perolehan thitung = 4,69 > ttabel = 2,02 dengan taraf signifikan 5% dan thitung = 4,69 > ttabel = 2,71 dengan taraf signifikan 1% sehingga Ha diterima. Dari data tersebut bisa ditarik kesimpulan bahwasanya penerapan model PBL bisa meningkatkan hasil belajar IPA siswa kelas VII di MTs Ma’arif Bakalan tahun pelajaran 2022/2023.
ANALISIS KEMAMPUAN BERPIKIR LOGIS SISWA KELAS VIII MELALUI PERCOBAAN SEDERHANA PADA PELAJARAN IPA
Authors: Arifiya Nur
Published: July 2023

Penelitian ini bertujuan untuk menganalisis kemampuan berfikir logis siswa untuk mencari sebab akibat dan menemukan benang merah dari percobaan sederhana yang telah dilakukan.  Aktivitas siswa dalam berpikir logis yaitu berusaha menjelaskan apa yang telah diperoleh dan melatih siswa untuk melakukan aktifitas yang lebih luas dalam menarik kesimpulannya. Penelitian ini menggunakan metode penelitian kualitatif yang menghasilkan data deskriptif berupa kata-kata. Penelitian dilakukan di SMP Islam Bojonggede Bogor, peserta didik kelas VIII berjumlah 12 orang siswa. Peserta didik diberikan tugas percobaan sederhana untuk materi gelombang dan bunyi dengan menggunakan alat yang sederhana, percobaan ini dilakukan secara individu serta dibuat laporan tertulis masing-masing siswa dan secara kelompok dalam presentasinya. Berdasarkan hasil penelitian ini terlihat bahwa subjek yangmemiliki kemampuan lebih baik, jika focus dan motivasinya baik. Maka akan menghasilkan berpikir logis yang baik pula, namun jika kurang focus dan motivasinya tidak maksimal, maka kemampuan berpikir logisnya akan lebih rendah dengan subjek yang memiliki kemampuan dasarnya di bawah subjek tersebut.
Penerapan Model Jigsaw Bervisi SETS Untuk Meningkatkan Kemampuan Literasi Sains Siswa Kelas VII Mts Tanbihul Ghofiliin Bawang
Authors: Irvani Vivi , Nasokah Nasokah , Firdaus Firdaus
Published: July 2023

Penelitian ini bertujuan 1) Untuk mengetahui perbedaan kemampuan literasi sains siswa antara menggunakan model pembelajaran jigsaw bervisi SETS dengan model konvensional. 2) Untuk mengetahui seberapa besar peningkatan kemampuan literasi sains pelajaran ipa fisika siswa kelas VII dengan metode pembelajaran jigsaw bervisi SETS 3) bagaimana keterlaksanaan model pembelajaran Jigsaw bervisi SETS dapat meningkatkan kemampuan literasi sains pelajaran ipa fisika siswa kelas VII. Metode penelitian ini merupakan penelitian lapangan, pendekatan penelitian kuantitatif dengan jenis penelitian eksperimen. Populasi dalam penelitian ini adalah siswa kelas VII. Teknik pengambilan sampel dengan cara non random sampling. Sampel yang diambil adalah kelas VII G yang berjumlah 26 siswa dan VII H yang berjumlah 29 siswa. Hasil Penelitian menunjukan bahwa 1) terdapat perbedaan kemampuan literasi sains siswa antara menggunakan model pembelajaran jigsaw bervisi SETS dengan model konvensional . 2) adapun peningkatan kemampuan literasi sains siswa kelas VII dapat diperoleh nilai rata-rata pretest kelas eksperimen 6,762 dan posttest 8,055. Sedangkan nilai rata-rata kelas kontrol pretest 6,715 dan posttest 7,076. 3) keterlaksanaan pembelajaran model jigsaw bervisi SETS di MTs Tanbihul Ghofiliin terlaksana dengan baik. Siswa berpikir keras untuk bisa mengaitkan pengetahuan dengan gejala alam yang ada terkait dengan materi pemanasan global. Siswa mengamati objek di sekitar kelas, kemudian didiskusikan bersama dengan kelompok.
JAMBI MASA KOLONIALISME IMPERIALISME SEBAGAI SUMBER PEMBELAJARAN SEJARAH: STUDY KASUS SISTEM PEMERINTAHAN BELANDA TAHUN 1615-1942
Authors: Sholekhah Siti , Seprina Reka
Published: July 2023

Jambi merupakan salah satu wilayah yang tidak terlepas dari keinginin Belanda yang ingin menguasai Jambi seutuhnya dan menjadikan wilayah Jambi sebagai koloni di Asia Tenggara dengan menjadikan Jambi sebagai wilayah keresidenan, hal ini membawa Jambi mengalami perubahan dalam bidang pemerintahannya. Pemerintahan kolonial Belanda resmi menguasai Jambi ketika runtuhnya kesultanan Jambi, maka pada tahun 1906 berdiri keresidenan pertama di Jambi sehingga secara resmi Jambi dibawah pemerintahan kolonial Belanda. Penelitian ini dilakukan untuk mengkaji bagaimana sistem pemerintahan Belanda di Jambi yang dapat dijadikan sebagai sumber pembelajaran pada mata pelajaran sejarah. Penelitian ini termasuk ke dalam penelitian kualitatif dengan pendekatan deskriptif. Metode penelitian yang digunakan dalan penulisan artikel ini yaitu metode kualitatif deskriptif. Hasil penelitian ini menunjukkan bahwa sistem pemerintahan Belanda dapat dijadikan sumber pembelajaran khususnya sejarah. Sumber pelajaran memikili peranan yang sangat penting bagi peserta didik karena dengan menjadikan sistem pemerintahan Belanda sebagai sumber pembelajaran dapat menumbuhkan rasa cinta tanah air terhadap bangsa serta dengan belajar sejarah mereka akan mengenal sejarah yang terdapat dilingkungkan sekitarnya.
JAMBI MASA KOLONIALISME DAN IMPERIALISME SEBAGAI SUMBER PEMBELAJARAN SEJARAH: STUDY KASUS PERKEMBANGAN KOTA MODERN MUARO TEMBESI (1906-1942)
Authors: Wulandari Wiwit , Seprina Reka
Published: July 2023

Kota modern Muaro Tembesi merupakan suatu wilayah yang menjadi bagian kekuasaan Kolonial Belanda di Jambi. Belanda secara sah berhasil menguasai Muaro Tembesi setelah keruntuhan kesultanan Jambi dan menjadikan Muaro Tembesi bagian dari keresidenan Jambi dibawah pemerintahan kolonial Belanda tahun 1906. Di bawah kekuasaan kolonial Belanda Muaro Tembesi tumbuh dan berkembang menjadi kota modern pada masa itu. Muaro Tembesi yang dulunya merupakan pusat administrasi pemerintah Belanda kini dikenal sebagai wilayah yang banyak memiliki peninggalan bersejarah yang dibangun oleh Belanda. Penelitian ini dilakukan untuk menggali kembali bagaimana perkembangan kota modern Muaro Tembesi khususnya pada masa Kolonialisme dan Imperialisme Belanda. Metode penelitian yang digunakan oleh penulis dalam artikel ini adalah metode kualitatif deskriptif. Hasil penelitian ini menunjukkan bahwa kota modern di Muaro Tembesi peninggalan Belanda dapat dimanfaatkan sebagai sumber belajar sejarah pada mata pelajaran sejarah Indonesia dan sejarah peminatan. Peninggalan Belanda di kota modern Muaro Tembesi ini sangat memiliki peranan penting terhadap peserta didik karena dengan menjadikan kota modern peninggalan Belanda di Muaro Tembesi sebagai sumber belajar sejarah dapat meningkatkan perasaan cinta tanah air dan nasionalisme terhadap bangsa serta mereka akan lebih mengenal mengenai sejarah yang terdapat dilingkungan sekitarnya dan dapat melestarikannya untuk masa yang akan datang.
STUDY PERJUANGAN ABDUL WAHID VS BELANDA (1916) SEBAGAI BAHAN PEMBELAJARAN SEJARAH DI SMA NEGERI 4 MUARO JAMBI
Authors: Yuliana Yuliana , Seprina Reka
Published: July 2023

Kota Jambi merupakan salah satu wilayah yang tidak terlepas dari kekuasaan Kolonial Belanda. Belanda secara sah berhasil menguasai kota Jambi setelah keruntuhan kesultanan Jambi dan menjadikan kota Jambi sebagai pusat dari keresidenan Jambi dibawah pemerintahan kolonial Belanda tahun 1906. Di bawah kekuasaan kolonial Belanda, banyak kebijakan yang sangat memberatkan rakyat Jambi pada masa itu sehingga menimbulkan perlawanan dari bebagai pihak. Penelitian ini dilakukan untuk mengidentifikasi bagaimana study perjuangan Abdul Wahid dalam melawan kolonial Belanda khususnya pada masa Kolonialisme dan Imperialisme Belanda. Metode penelitian yang digunakan dalam penulisan artikel ini yaitu metode kualitatif deskriptif. Hasil penelitian ini menunjukkan bahwa study perjuangan Abdul Wahid dalam melawan Kolonial Belanda (1916) dapat dimanfaatkan sebagai bahan pembelajaran sejarah pada mata pelajaran sejarah Indonesia dan sejarah peminatan. Study perjuangan Abdul Wahid dalam melawan Kolonial Belanda ini sangat memiliki peranan penting terhadap peserta didik karena dengan menjadikan study perjuangan Abdul Wahid dalam melawan Kolonial Belanda sebagai bahan pembelajaran sejarah dapat meningkatkan perasaan cinta tanah air dan nasionalisme terhadap bangsa serta mereka akan lebih mengenal mengenai sejarah yang terdapat dilingkungan sekitarnya dan dapat melestarikannya untuk masa yang akan datang.
PERKEMBANGAN KOREAN CULTURE DI KOTA JAMBI MASA REFORMASI (2000-2021)
Authors: Al-Habro Akil , Alvian Ali Nur , Seprina Reka
Published: July 2023

Rumusan  masalah  dalam penelitian Perkembangan Korean Culture di Kota Jambi ini adalah Bagaimana Perkembangan Korean Culture Di Kota Jambi Masa Reformasi (2000-2021)”. Penelitian ini   bertujuan  untuk mendeskripsikan Perkembangan Korean Culture di Kota Jambi Masa Reformasi (2000-2021). Penelitian ini tergolong dalam penelitian Kualitatif dengan pendekatan histories. Metode yang digunakan dalam penelitian ini adalah metode sejarah yang melalui beberapa tahap yaitu: heuristik, kritik sumber,  interpretasi dan  historiografi.  Hasil  penelitian  menunjukkan  bahwa Korean Culture telah suskes berkembang di jambi sejak dimulainya Korean Wave yang masuk ke Indonesia yang kemudia menyebar keseluruh Indonesia termasuk jambi. Masuknya budaya Korea di Kota Jambi dengan pengenalan K-Drama ke Indonesia. Korean Wave dapat diterima oleh sebagian besar masyarakat Jambi, berhasil dengan K-Drama, memberi jalan terhadap berbagai produk-produk Korea lainnya seperti  K-Pop, K-Food, K-Style, Bahasa Korea, Teknologi Korea.