bluuebunny/crossref_metadata_2025 huggingface dataset:
The Impact of Magnetic Resonance Coupling in Electric Vehicle Power Transfer Systems
Authors: Pranesh B. , Babu Dr G. Suresh
Published: July 2024

Abstract: This research investigates the innovative use of Magnetic Resonance Coupling (MRC) in Electric Vehicle (EV) power transfer, focusing on its potential and challenges. Key objectives include understanding MRC's operational principles, optimizing efficiency, and tackling real-world EV charging issues. Essential components like coil design, resonance frequency tuning, and power control are covered, utilizing MATLAB and Simulink for performance simulation under various conditions. The impact of MRC on EV charging infrastructure is highlighted, emphasizing advancements in power transmission and efficiency. The findings promise to revolutionize EV charging, leading to more efficient, convenient, and sustainable power transfer methods.
Various Variants of Round Robin Scheduling Algorithm
Authors: Bhati Roshi , Thambi Rahul , Nerurkar Nikhil
Published: July 2024

Abstract: In order to use the computer processor efficiently, different scheduling algorithms are used to manage the executionof multiple processes. One popular algorithm is called Round Robin (RR), where each process is given a short amount of time to run on the processor before switching to the next process inthe queue. The length of this time period, called a time quantum, is important in determining how efficient the scheduling is. If the time quantum is too long, it can increase the time it takes for a process to respond. If it is too short, it can increase the amount of time the processor spends switching between processes instead of actually executing them. In this paper, we explore different variants of the RR algorithm and compare their performancein terms of waiting time, turnaround time, and the number of times the processor switches between processes.
Tribal Culture and Environment: An Analysis of Betul Region
Authors: Arya Vivek Kumar , Chauhan Sanjay Singh , Suryavanshi Arender Singh
Published: July 2024

सारांश: यह अÚययन मÚय Ĥदेश के बैतूल ¢ेğ कȧ जनजातीय संèकृ Ǔत और पया[वरण के बीच के जǑटल संबंधɉ का ͪवæलेषण करता है। बैतूल ¢ेğ कȧ जनजातीय जनसंÉया एक समृɮध सांèकृ Ǔतक धरोहर को संजोए हु एहै, िजसमɅउनकȧ जीवनशैलȣ, रȣǓत-ǐरवाज, और धाͧम[क माÛयताएं शाͧमल हɇ। यह सांèकृ Ǔतक धरोहर èथानीय पया[वरण के साथ गहराई सेजुड़ी हु ईहै, जो जनजाǓतयɉ के जीवन के ͪवͧभÛन पहलुओं पर Ĥभाव डालती है। अÚययन मɅपाया गया हैͩक बैतूल कȧ जनजातीय संèकृ Ǔत èथानीय पया[वरणीय संसाधनɉ के सतत उपयोग पर आधाǐरत है। वन, जल İोत, और कृ ͪष भूͧम जैसी Ĥाकृ Ǔतक संसाधनɉ का समुͬचत उपयोग जनजाǓतयɉ कȧ दैǓनक जीवनचया[ और सांèकृ Ǔतक परंपराओं मɅ अͧभÛन Ǿप सेशाͧमल है। इसके अलावा, जनजाǓतयɉ ɮवारा अपनाई गई पारंपǐरक कृ ͪष पɮधǓतयांऔर औषधीय पौधɉ का £ान पया[वरण के संर¢ण मɅमह×वपूण[ भूͧमका Ǔनभातेहɇ। अÚययन मɅयह भी उजागर ͩकया गया हैͩक बाहरȣ कारकɉ, जैसेͩक औɮयोͬगकȧकरण और शहरȣकरण, नेजनजातीय जीवन और पया[वरण पर नकारा×मक Ĥभाव डाला है। इसके पǐरणामèवǾप, Ĥाकृ Ǔतक संसाधनɉ का ¢य और जनजातीय परंपराओंका ıास हो रहा है। इन चुनौǓतयɉ के बावजूद, जनजाǓतयɉ ɮवारा अपनाई गई सामुदाǓयक Ĥथाएंऔर èथानीय पया[वरणीय Ĥबंधन Ĥणालȣ इस ¢ेğ केसतत ͪवकास मɅसहायक हो सकती हɇ। अंततः, यह अÚययन बैतूल ¢ेğ मɅजनजातीय संèकृ Ǔत और पया[वरण के बीच के पारèपǐरक संबंधɉ को समझनेका Ĥयास करता है, िजससेनीǓतगत Ǔनमा[ण और ͪवकास योजनाओं मɅसमावेशी Ǻिçटकोण अपनानेमɅ सहायता ͧमल सके । इस Ĥकार, यह न के वल जनजातीय समुदायɉ कȧ सांèकृ Ǔतक धरोहर कȧ सुर¢ा मɅसहायक होगा, बिãक èथानीय पया[वरण केसंर¢ण मɅभी मह×वपूण[योगदान देगा।
Korean adolescents’ sports apparel consumption: Quality attributes, purchase intention, and online word of mouth
Authors: Kwon Kwan Bae , Chung Taerin
Published: July 2024

A significant challenge in the sports apparel market of South Korea is comprehending adolescents, who exhibit distinct consumption behavior, as a major consumer demographic. Thus, we systematically analyzed the pathways connecting adolescents’ perception of the quality attributes
of sports apparel, purchase intention, and online word of mouth. We conducted a survey involving 254 students from three schools in South Korea. The findings showed that among the perceived attributes of sports apparel brands, quality demonstrated a positive impact on adolescents’ purchase
intention. Further, purchase intention exerted a favorable influence on online word of mouth. Our findings offer insight into the consumer behavior of adolescents in the sports apparel realm.
Influence of entrepreneurship curriculum experience on entrepreneurial intention
Authors: Yang Liyan , Mu Xuan , Xu Yiming
Published: July 2024

We used social cognitive career theory to investigate the influence of college students’ entrepreneurship curriculum experience on their entrepreneurial intention, and constructed a theoretical model to explain its mechanism. We collected data from 293 Chinese college students
by distributing questionnaires. Results of structural equation modeling demonstrated that entrepreneurship curriculum experience was positively related to entrepreneurial intention, with entrepreneurial self‐efficacy and outcome expectation entrepreneurship acting as mediators. Entrepreneurial
self‐efficacy played the more significant mediating role of the two. In addition, we demonstrated through an exploratory factor analysis that gender had a close correlation with the influence of entrepreneurship curriculum experience on entrepreneurial intention, such that men scored
significantly higher than women did on the dimensions of outcome expectation entrepreneurship and entrepreneurial intention. Implications of the findings are discussed.
Physical exercise and college students’ mental health: Chain mediating effects of social‐emotional competency and peer relationships
Authors: Liu Yanying , Feng Qingkun , Tong Yao
Published: July 2024

Physical exercise plays an important role in promoting college students’ mental health, but the mechanism of the effect of physical exercise on mental health is still under investigation. We conducted a survey with 1,168 Chinese college students using stratified cluster random
sampling. Physical exercise, social‐emotional competency, peer relationships, and mental health were assessed by using standard scales. Physical exercise was found to be positively correlated with mental health. Social‐emotional competency and peer relationships had both independent
and chain mediating effects on the link between physical exercise and mental health. These results reveal the mechanism of the relationship between physical exercise and mental health, and provide a preliminary basis for studying the causal relationship between them. Our findings also provide
practical insights for intervention in and promotion of college students’ mental health.
Catastrophic effects of bullying on school belonging
Authors: Sideridis Georgios , Alghamdi Mohammed
Published: July 2024

Our aim was to understand students’ sense of school belonging as a function of their engagement with academics and their experiences of bullying. Due to the complex pattern of relationships, we applied linear and nonlinear models. Participants were 4,778 fourth graders from Saudi
Arabia from the Progress in International Reading Literacy Study 2021 cohort. Data were analyzed using linear modeling as well as the cusp catastrophe. The results fully supported the premises of the cusp catastrophe model, in that level of bullying, in principle, had a negative impact on
the development of school belonging, but once the level of bullying crossed a critical threshold, students’ sense of belonging became unpredictable and chaotic. Previous empirical studies found that the cusp model has significant predictive validity. We can conclude that bullying may
act as a moderating factor that distorts relationships such as that between student engagement and school belonging.
Impact of brand image on the brand experience of consumers in China: Brand loyalty as a mediator
Authors: Nie Qingqing , Zeng Qiang
Published: July 2024

We investigated the impact of brand image on brand loyalty, and assessed the mediating role of brand experience in this relationship. The sample comprised 439 consumers in China. The results showed there was a significant positive correlation between brand image and brand loyalty. Additionally,
brand experience played a mediating role in this relationship. Our research findings contribute to better understanding of the relationships between brand image, brand loyalty, and brand experience among consumers in China. These discoveries also offer practical insights for business operators
seeking to enhance consumer brand loyalty. Implications and directions for future research are discussed.
Customer satisfaction mediates the relationship between in‐store music and stores’ brand equity
Authors: Cui Yuhua , Cao Rui
Published: July 2024

One option for improving store appeal is leveraging the power of in‐store music. This study explored the relationship between in‐store music and stores’ brand equity, with a particular focus on the mediating effect of customer satisfaction. We administered a paper‐based
survey to a sample of 268 customers of four Korean apparel stores situated in the northeast region of China, where Korean music was utilized to attract customers. Data analysis was conducted using structural equation modeling. The findings revealed a positive and direct association between
a favorable perception of in‐store music and stores’ brand equity. Moreover, customer satisfaction played a significant mediating role in this relationship. These findings, which shed light on how instore music can enhance customer satisfaction and promote stores’ brand
equity, will be particularly useful for retailers.
Charismatic leadership influences employees’ improvisation ability: Harmonious passion as a mediator and job insecurity as a moderator
Authors: Jia Qiong , Wang Shan , Wang Guanlin
Published: July 2024

Improvisation ability has become an important competency for employees to adapt to dynamic, volatile work environments. However, the effect of charismatic leadership style on the improvisation ability of employees is yet to be revealed. We used self‐determination theory and conservation
of resources theory to explore the effect of charismatic leadership on employees’ improvisation ability, with job insecurity as a moderator and harmonious passion as a mediator. Our goal was to enrich research on leadership styles shaping employee behavior and employee competencies.
We collected 267 valid questionnaires through the Amazon Mechanical Turk platform, and conducted model testing using SPSS 25.0. Results of empirical analysis showed that charismatic leadership positively affected employees’ improvisation ability. Employees’ harmonious work passion
mediated the effect of charismatic leadership on employees’ improvisation abilities, and job insecurity played a moderating role in enhancing the positive effect of charismatic leadership on employees’ improvisation ability. We discuss the practical implications for how organizations
can improve employees’ improvisation ability in a dynamic and changing internal and external environment.
Exercise self‐efficacy and aggressive behavior in college students: Interpersonal trust and prosocial behavior as chain mediators
Authors: Ma Lina , Wu Li , Li Jing , Lin Jiangfeng
Published: July 2024

This study examined the relationship between exercise self‐efficacy and aggressive behavior in college students, with interpersonal trust and prosocial behavior as mediators. We conducted a survey of 1,571 college students. The results were as follows: (a) exercise self‐efficacy
was significantly and negatively related to aggression, and the direct path of exercise self‐efficacy to aggressive behavior was significant; (b) exercise self‐efficacy positively predicted interpersonal trust and prosocial behavior, while interpersonal trust significantly and
positively predicted prosocial behavior, and prosocial behavior significantly predicted aggressive behavior; and (c) interpersonal trust and prosocial behavior played a significant mediating role in the relationship between exercise self‐efficacy and aggressive behavior. These findings
have important practical significance as guidance for reducing aggressive behavior in college students.
Student‐faculty interaction and students’ psychological well‐being: The mediating role of resilience
Authors: Yu Wenjuan , Zhou Yi
Published: July 2024

Despite the growing interest in identifying psychological strengths that contribute to students’ psychological well‐being, the underlying mechanisms that students deploy specifically during college remain poorly understood. To address this gap, we conducted a cross-sectional
survey to investigate the mediating role of resilience in the relationship between student‐faculty interaction and psychological well‐being among college students. Participants comprised 224 Chinese college students who completed self-report questionnaires. The results obtained
from structural equation modelling indicated that resilience partially mediated the association between student‐faculty interaction and college students’ psychological well‐being. These findings contribute to understanding of the potential mechanism underlying the link
between student‐faculty interaction and the psychological well‐being of college students, and provide new insight into potential strategies for strengthening these capabilities.
Psychometric properties of the Range and Differentiation of Emotional Experience Scale among Chinese teachers
Authors: Cao Ying , Xu Yong , Zhu Leiye , Wang Haibin
Published: July 2024

The Range and Differentiation of Emotional Experience Scale (RDEES) is a useful assessment of individual differences in emotional complexity. We recruited 721 Chinese primary and middle school teachers to examine the psychometric properties of the RDEES for use with this population.
The results supported a two-factor model, comprising the range of emotional experience and the differentiation of emotional experience. The Chinese version of the RDEES showed a significant correlation with the Chinese version of the Emotional Intelligence Scale. Internal consistency coefficients
ranged from .58–86 and test‐retest reliability ranged from .59â–“.66. Therefore, the Chinese version of the RDEES can be used for measuring emotional complexity in Chinese primary and middle school teachers.
Effect of temporal landmarks on consumers’ preference for attribute alignability: The mediating role of creative self-efficacy
Authors: Sun Jingran , Duan Yuting , Zhao Zheng , Chen Wenbei
Published: July 2024

In the face of a rapidly changing consumer market, companies strive to innovate their products by either adopting a strategy of enhancement of attributes or focusing on uniqueness. Using the structural alignment model, we conducted two studies to investigate the influence of temporal
landmarks on consumers’ diagnosticity of product attributes and the mediating role of creative self-efficacy in this link. Results indicated that consumers relied more on nonalignable (vs. alignable) attributes to evaluate a product when a start (vs. end) temporal landmark was activated.
These findings have implications for marketing theory and companies’ product-communication strategies.
Editors’ Newsroom: Why our integrity as researchers matters
Authors: Segal Keren , Cheyne Alexandra
Published: July 2024

In this edition of Editors’ Newsroom, Dr. Keren Segal joins Managing Editor, Alexandra Cheyne, to discuss research integrity: why it matters and how to protect it.
Herbal Medicines for the Improvement of Immune Function in Patients with Cancer: A Protocol for Systematic Review and Meta-Analysis
Authors: Cho Young-Min , Jang Soobin , Ko Mi Mi , Joo Han-eum , Yoo Hwa-Seung , Jeong Mi-Kyung
Published: July 2024

Objectives: Patients with cancer eventually fail to respond to therapy when malignant cells develop effective ways to evade immunosurveillance. Conventional cancer treatments, such as radiation therapy and chemotherapy, aim to cure the disease or prolong the patient’s life. However, the toxicity and side effects of conventional treatments limit their efficacy. Herbal medicine is a typical complementary and integrative form of medicine for cancer treatment in Asia. This protocol evaluates the effectiveness of herbal medicines in improving the immune function of patients with cancer.Methods: The following electronic databases will be searched: MEDLINE via PubMed, EMBASE via Elsevier, Cochrane Central Register of Controlled Trials, China National Knowledge Infrastructure (CNKI), and Korean databases including Regional Information Sharing Systems (RISS), National Digital Science Library (NDSL), and Oriental Medicine Advanced Searching Integrated System (OASIS). Additionally, prospective randomized controlled trials that evaluate the effectiveness of herbal medicines on immune function in patients with cancer will be included in this review. All outcomes related to the immune function of patients with cancer (e.g., CD3, CD4, CD8, CD4/CD8 ratio, CD19 (B cells), dendritic cells (CD11), CD56 (NK cells), and macrophages) will be included in this review.Results: This review is expected to provide data on the effectiveness of herbal medicines on improving immune functions in patients with cancers.Conclusion: This systematic review will help patients and clinicians establish new management options for cancer treatment.
Cold Hypersensitivity and Sleep Quality: A Cross-sectional Community-based Study
Authors: Park Ki-Hyun , Lee Siwoo , Bae Kwang-Ho
Published: July 2024

Background: Cold hypersensitivity (CH) and sleep disorders are not limited to patients with specific diseases, as they are also commonly observed in the general population. The objective of this study was to investigate the relationship between CH and sleep quality.Methods: This cross-sectional study analyzed data from a cohort of 5,052 individuals living in South Korea. Based on the results of a questionnaire on CH, the participants were classified into four groups: non-CH, CH in the hands (CHH), CH in the feet (CHF), and CH in the hands and feet (CHHF). Sleep quality was evaluated using the Pittsburgh Sleep Quality Index (PSQI). Multiple regression was used for groupwise comparisons of total PSQI scores and the scores for each component, and logistic regression was used to find the odds ratios of being a “poor sleeper” (PSQI≥8.5).Results: The CHF and CHHF groups showed significantly higher scores than the non-CH group on the overall PSQI as well as on the following sleep components: subjective sleep quality, sleep latency, habitual sleep efficiency, sleep disturbance, and sleep medication use. The odds ratios for being a “poor sleeper” were significant in the CHF (1.84; CI=1.38-2.43) and CHHF groups (1.54; CI=1.25-1.89), but the CHH group did not show any difference from the non-CH group. We identified a correlation between CH in the feet and poor sleep quality.Conclusions: These findings help to elucidate the relationship between sleep and CH and highlight the need to clarify the underlying mechanism.
Analysis of Clinical Features and Treatment of Patients Presenting Dyspepsia Related to COVID-19: Retrospective Chart Review
Authors: Jeong Nahyun , Yoon Chae-Rim , Choi Su-Hyun , Jeong Dahee , Sim Yoohyun , Jeong Hae-in , Ha Na-Yeon , Kim Jinsung
Published: July 2024

Objectives: The main purpose of this study is to investigate the clinical characteristics of patients complaining of indigestion after COVID-19 infection (CI) or COVID-19 vaccination (CV) and to confirm the effectiveness and safety of Korean medical treatment.Methods: We retrospectively collected and investigated the medical records of 39 patients admitted to the Kyung Hee University Korean Medicine Hospital with a chief complaint of dyspepsia from January 1, 2020 to February 29, 2024 who reported the onset or significant exacerbation of dyspepsia after CV or CI. Patients were divided into vaccination and infection groups, and their demographic characteristics, Ryodoraku results, presenting symptoms, traditional Korean medicine treatments, and treatment outcomes were analyzed.Results: When comparing the groups with dyspepsia after CV and after CI, it was observed that the CI group had significantly lower average body weight, and the measurements of LH6, LF1, and LF6 in the Ryodoraku test were significantly lower. Additionally, compared to the CV group, the CI group showed significantly more abdominal distension, nausea, and abdominal pain. Significant relief of upper gastrointestinal symptoms was observed in both the CV and CI groups after treatment. No adverse reactions were observed during the course of treatment.Conclusion: The CI group tended to complain more severely of various dyspeptic symptoms and had a tendency to lower body weight than the CV group, as was also reflected in the results of the Ryodoraku test. Korean medical treatment can be effective and safe in treating these patients.
A Study on Cheng Guopeng (程國彭)’s Understanding of Shanghan Disease (傷寒病) Through Yixuexinwu (醫學心悟)
Authors: Jeon Chan-Yong
Published: July 2024

Objective and Methods: This study examined Cheng Guopeng (程國彭)’s understanding of Shanghan Disease (傷寒病) through , created tables based on this, and these tables were compared with ’s table on Six Meridian Pattern Identification (六經辨證).Results and Conclusion:1.  and  were mostly similar regarding the pathology and the Six Meridian Pattern Identification of Shanghan Disease. However,  selected terms that encompass internal medical diseases rather than terms that refer only to infectious diseases.
2. About Taiyang meridian disease (太陽 經病),  recognized the existence of Wen bing (溫病) and Re bing (熱病), but did not regard them as True Shanghan Disease (正傷寒), and differentially diagnosed them as Similar Shanghan Disease (類傷寒).
3. About Yangming meridian disease (陽明 經病),  understood this as a meridian transmitted heat-syndrome in the interior (傳經 裏熱證), and created a new Radix Puerariae Decoction (葛根湯). This prescription has the same name as the , but it has a different drug composition and indications.
4. About three-In meridian disease (3陰 經病),  always divided it into two categories: meridian transmitted heat-syndrome in the interior (傳經 裏熱證) and meridian stroked cold-syndrome in the interior (直中 裏寒證). However,  described Taiin disease (太陰病) as Spleen-stomach deficiency cold-syndrome (脾胃虛寒證). This means that meridian transmitted heat-syndrome in the interior (傳經 裏熱證) does not exist among Taiin disease.
A Patient with Dyspnea, Chest Pain and Fatigue due to Angina Pectoris Treated with Saengmaeg-san-hap-Bojungikgi-tang-gami : A Case Report
Authors: Park Do-yeon , Moon Hyang-ran , Noh Hui-jeong
Published: July 2024

Objectives: This case report describes good clinical progress in a patient with symptoms related to angina pectoris treated with a herbal medication.Methods: The 66-year-old male patient hospitalized in Chonnam National University Hospital (CNUH) in May 2020 for symptoms of dyspnea and chest pain was diagnosed with angina pectoris, medicated, underwent PCI in August 2020, and continued to take the medicine prescribed at CNUH during hospitalization. Korean medical treatments, including herbal medicines (Saengmaeg-san-hap-Bojungikgi-tang-gami, Yeonggyechulgam-tang), acupuncture, and cupping therapy were administered for 22 days. Symptom severity was assessed with a daily visual analog scale (VAS) for dyspnea and chest pain and standard deviation of NN (SDNN) score of heart rate variability.Results: Post-treatment, severity of dyspnea, chest pain, and fatigue reduced from VAS 7 to VAS 2, VAS 6 to VAS 1, and VAS 7 to VAS 1, respectively. The SDNN score improved from 16.474 ms to 23.270 ms. There were no side effects from Korean medicine treatment.Conclusion: Traditional Korean treatment could effectively treat symptoms related to angina pectoris.
A Case Report of Complex Korean Medicine Treatment Including Modified Gamiguibi-tang in a Paraneoplastic Cerebellar Degeneration Patient with Dysarthria and Weakness of Distal Extremity
Authors: Kang Ji-hyeon , Kim Seo-hyun , Kim Chae-eun , Won Hee-ju , Baek Kyungmin
Published: July 2024

Objectives: This study investigated the treatment response to Korean medicine of a paraneoplastic cerebellar degeneration (PCD) patient with dysarthria and weakness of distal extremity.Case presentation: A 53-year-old female diagnosed with PCD complained of dysarthria and weakness of distal extremity. During 32-day hospitalization, she was treated with Korean medicine, namely, herbal medicine (modified Gamiguibi-tang), acupuncture (15 minutes twice a day at CV23, HT7, LI4, LR3, ST36, SP6, GB20, TE17, PC6, GV20, Ex-HN1, GV24 etc.), moxibustion, and cupping, combined with Western medicine (prednisolone, azathioprine) and physical therapy. Post-treatment, the patient global assessment (PGA) score of dysarthria fell from 100 to 60; grasp power rose from 15 kg to 19 kg and 13 kg to 17 kg in the right and left hands, respectively; and the 5-level EQ-5D version (EQ-5D-5L), EQ visual analogue scale (EQ-VAS), and Beck depression inventory (BDI-II) scores changed from 10 to 8, 0 to 80, and 34 to 7 respectively. Follow-up visits continued for about a month after discharge, improvement in symptoms maintained, and there were no significant side effects.Conclusions: Given the lack of standard treatment for PCD, Korean medicine can be tried clinically for the treatment of PCD patients with dysarthria and weakness of distal extremity. However, further studies with control groups are needed.
A Correlation of Interleukin-6 of Pancreatic Cancer Patients and Cancer Progression: Case Series
Authors: Joo Han-eum , Cho Young-min , Kim Jun-yeol , Park Jung-hyang , Kim Soo-jin , Yoon Hae-chang , Cho Jung-hyo
Published: July 2024

Objectives: To report a correlation of IL-6 of pancreatic cancer and cancer progression in three pancreatic cancer patients.Method: Three pancreatic cancer patients were monitored for changes in IL-6 levels, tumor markers (CEA, CA19-9), and clinical outcomes over their treatment period.Results: Patient 1’s IL-6 levels rose with liver metastasis and tumor progression, coinciding with increases in tumor markers. Patient 2’s IL-6 levels remained elevated during chemotherapy, correlating with tumor growth. Patient 3’s IL-6 levels spiked prior to cancer progression.Conclusion: Elevated IL-6 levels were observed in advancing pancreatic cancer patients, suggesting IL-6 as a potential biomarker for monitoring cancer progression in pancreatic cancer. Regular IL-6 monitoring could improve prognostic evaluations and treatment strategies.
A Case Report of Korean Medical Treatment for an Adult with Cyclic Vomiting Syndrome Analyzed by Electrogastrography and Subjective Evaluation Scale
Authors: Jeong Dahee , Yoon Chae-Rim , Choi Su-Hyun , Jeong Nahyun , Sim Yoohyun , Jeong Hae-in , Ha Na-Yeon , Kim Jinsung
Published: July 2024

Objectives: This case study reports the effectiveness of Korean medical treatment in a patient with cyclic vomiting syndrome.Methods: A 29-year-old female Korean patient with cyclic vomiting syndrome received acupuncture, electroacupuncture, herbal medicine, and moxibustion for 2 weeks in hospital. Changes in symptoms were evaluated using the Gastrointestinal Symptom Rating Scale (GSRS), Visual Analog Scale (VAS), Index for Nausea, Vomiting, and Retching (INVR), Nausea Severity Scale (NSS), Nepean Dyspepsia Index-Korean version (NDI-K), quality of life using the Functional Dyspepsia Related Quality of Life questionnaire (FD-QoL), and gastric motility using electrogastrography (EGG).Results: Post-treatment, the patient showed high satisfaction and improvement in symptoms of nausea and vomiting. The following changes were observed in scores: GSRS: 23 to 19; VAS of nausea: 88 to 95; VAS of dyspepsia: 95 to 12; INVR: 13 to 1; NSS: 17 to 5; NDI-K: 107 to 78; and FD-QoL 84 to 27. We also found positive results in Channel 3 of EGG parameters, implying the improvement of gastric motility disorder.Conclusion: Korean medical treatment can be a therapeutic option for cyclic vomiting syndrome.
Consensual qualitative study on the experiences of high school students who participated in a student-led life respect education program
Authors: Woo Jee-Hyang , Park Seung-Min , Shin Hye-Jung ,   Korean Association For Learner-Centered Curriculum And Instruction
Published: July 2024

Objectives This study developed an alternative program that could overcome the limitations of existing life-respect education and then analyzed the experiences of students who participated in the program using qualitative research methods.
Methods A student-led life respect education program based on Flipped Learning and Problem Based Learning was developed and implemented for 450 high school students in Seoul. Qualitative data (satisfaction survey open-ended questions, written interviews, group interviews, impression sharing activities, etc.) were collected from 190 general students and 33 student instructors participating in education at two high schools. The collected data were analyzed using a consensual qualitative research method to examine the meaning and context of the students' experiences.
Results The meaning of the experiences of general students who participated in education can be condensed and expressed as ‘education to think and communicate together from the perspective of youth.’ In addition, the meaning of the experience of the student instructors who led the education can be said to be ‘learning to explain, learning more deeply, one stone and two birds.’ This can be understood in the context of the ‘Learning Pyramid’, a schema that defines efficient learning methods.
Conclusions We propose to improve educational effectiveness through exploration of learning strategies for life-respecting education, and limitations of the study and future research tasks were presented.
An Autoethnography on the Self-Differentiation Experience of a Middle-Aged Married Woman
Authors: Heo Yun-jeong , Kim Myeung-chan ,   Korean Association For Learner-Centered Curriculum And Instruction
Published: July 2024

Objectives The purposes of my story is to examine the marital life of a middle-aged woman from the perspective of self-differentiation on a reflective manner.
Methods To descrive the marital life of middle-aged married woman from the perpective of self-differentiation, I employed autoethnography. I critically described the oppressive experiences I experienced while living as a middle-aged woman based on the concept of self-differentiation. For this purpose, memory data, recall data, interview data, etc. were analyzed and described.
Results As a middle-aged married woman, my early marital life was in an undifferentiated state. Initially, I was undifferentiated from my parents, and I had not attained autonomy and independence in my relationship with my husband. The crises I faced in my marital life served as catalysts for self-differentiation, gradually experiencing it through emotional and financial independence. As a result, I found resolution to marital crises and discovered new meanings.
Conclusions My story serves as a meaningful case in counseling, demonstrating the significance and value of self-differentiation in marital life.
Effects of Functional Cognitive Gait in using the Sports Rhythm Training on Gait Pattern and Cognitive Function in the Trends of Children with Developmental Disabilities
Authors: Park Jeong-Min , Park Jea-Sung ,   Korean Association For Learner-Centered Curriculum And Instruction
Published: July 2024

Objectives The purpose of this study was to help neurological disorders seen of the trends of children with developmental disabilities and improve their quality of life by investigating the functional cognitive gait in using the sports rhythm training on gait pattern and cognitive function in trends of children with developmental disabilities.
Methods In order to achieve the purpose of this study, 39 trends of children with developmental disabilities at N located in K city, were selected at random and allocated 13 trends of children with developmental disabilities each for the Non Exercise group (NEG), Deficient Exercise group(DEG), Over Exercise group (OEG) and measured kinematic gait pattern and cognitive function before and after the experiment. The data obtained from this study were analyzed using the SPSS 26.0 statistical program the two-way repeated measures ANOVA and Bonferroni post-hoc test was performed.
Results The conclusions obtained through this study were as follows. First, as a result of analyzing the change of gait pattern to functional cognitive gait in using the sports rhythm training program, there were significantly improved in velocity, cadence, step length, stride length in OEG compared with NEG and DEG after 24 weeks. Second, as a result of analyzing the change of cognitive function according to functional cognitive gait in using the sports rhythm training, there were significantly improved in body part, number display, movement, operation in OEG compared with NEG and DEG after 24 weeks.
Conclusions As conclusions, this study confirmed that the functional cognitive gait in using the sports rhythm training program could improve the gait pattern and cognitive function in the trends of children with developmental disabilities.
Research on performance analysis of extra-curricular program based on core competencies: Focusing on S University writing clinic satisfaction analysis
Authors: Bang Young-Sim , Jeon Young-Ok , Song In-Seong ,   Korean Association For Learner-Centered Curriculum And Instruction
Published: July 2024

Objectives The purpose of this study is to determine the impact of extra-curricular program on strengthening core competencies of universities, based on the results of a satisfaction survey of the writing clinic using competency-based survey questions. In addition, this study seeks to present problems and improvement plans in the performance analysis of the current competency-based extra-curricular program.
Methods For this purpose, a satisfaction survey was analyzed among S University students who participated in the writing clinic. The S University writing clinic is a program linked to the university writing class called , and is an individual instruction course that helps students taking the class write academic writing. Satisfaction surveys prior to 2022 were not linked to university core competencies, so it was not possible to measure the impact of extracurricular program on improving core competencies. For this reason, we developed questions linked to S University's core competencies and conducted a satisfaction survey in the second semester of 2022. After finding problems and revising the questions, we conducted and analyzed a satisfaction survey in the first and second semesters of 2023.
Results The results of the satisfaction survey showed that the writing clinic was helpful in cultivating all of S University’s core competencies, and among them, the cultivation scores for ‘competence in practicing ethics’ and ‘competence in exploring professional knowledge’ were high. This result is understood to be a phenomenon that occurred because the target was ‘academic writing’, which was an assignment in the  class, and was influenced by the type of writing that was the target of the writing clinic and the instructors’ inspection points during the clinic process.
Conclusions As a result of analyzing the case of S University, it is clear that extra-curricular program contribute to cultivating the university’s core competencies, but it is problematic to uniformly apply the core competencies set by the university to all programs. Therefore, it is suggested to apply it selectively, focusing on competencies with high suitability. In addition, how to link the university's core competencies and writing competencies and introduce them into performance management will be a future task.
Transformations in the sanitation sector in the State of Rio de Janeiro: neoliberalism and regulatory changes
Authors: Tavares Érica , Souza Juliana Santos Alves de , Ribeiro Carlos Frederico Rangel de Almeida
Published: July 2024

This article analyzes the reconfiguration of water supply services provided to municipalities across the State of Rio de Janeiro. It seeks to examines how advancements in the neoliberalization of Brazil's basic sanitation sector have contributed to a fragmentation in the provision of services and to the emergence of uneven geographies on a regional scale. This will be conducted through the lens of policy experimentation, particularly after the approval of Law 14.026/2020. The study is based on an approach concerning the commodification of public services within the context of neoliberalism, marked by a complex reformulation of regulatory mechanisms. The methodology combines an analysis of secondary data, documentary research, and thematic mapping. The results reveal that the management of sanitation services is increasingly guided by market logic, with the experimentation of controversial regulatory mechanisms that have exacerbated fragmentation and deepened territorial inequality.
Avaliação de desenho dos incentivos fiscais federais para o desenvolvimento regional
Authors: Portugal Rodrigo
Published: July 2024

Os incentivos fiscais são utilizados como instrumentos de políticas de desenvolvimento regional desde os anos 1960 e têm se mostrado mecanismos resilientes ao tempo. Nesse sentido, o artigo faz uma avaliação sobre o desenho dos incentivos fiscais federais com vistas à redução das desigualdades regionais, utilizando como método uma análise histórico-institucional do instrumento. Os resultados revelaram modificações na lógica original e uma desvinculação normativa relevante dos diagnósticos atuais em relação aos incentivos fiscais, transformando-os em um mecanismo estanque no tempo e dificultando avaliações de sua eficácia e efetividade.
Magnetic plasma filamentary structures in the spectrum of α2-dynamos
Authors: Garcia de Andrade L. C. ,   Departamento de Física Teórica-IF, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524 Cep 20550-003, Maracanã, Rio de Janeiro, RJ, Brasil
Published: July 2024

Previously, Kinney et al. [4] have investigated plasma filamentary structure dynamics. Recently, Wilkin et al. [5] have shown that the kinetic energy spectrum of magnetic structures in small-scale dynamos is predominantly filamentary. Kirilov et al. [6] found that the use of boundary values of the mean-field isotropic helical turbulent α2-dynamo could determine the morphology of dynamo instability. In this paper, a filamentary structure of magnetic fields in Frenet frame diffusive media is shown to lead to kinematic chaotic dynamo in a 3D Euclidean space E3. In 2D, in agreement with the Zeldovich anti-dynamo theorem, no dynamo action spectrum is either found, or a slow dynamo action is found. Curvature and diffusion effects are encoded in the matrix representation of the α2-dynamo operator. Instead of the principal scalar curvatures κ1 and κ2 of the surface of structures, only one scalar curvature κ is needed to determine the dynamos spectra. The filament thickness increases with the scalar curvature, as in solar physics. Refs 18.
Numerical simulation of the influence of geometric parameters on a spherical magnetohydrodynamic attitude controller
Authors: Zhou Anleu , Gu Youlin , Liu Chaozhen , Liang Qinghua , Wang Shigang
Published: July 2024

In this paper, a novel magnetohydrodynamic attitude adjustment method is proposed, which only uses a spherical magnetohydrodynamic attitude controller for three-axis attitude adjustment. The electromagnetic field equations and fluid flow equations are simultaneously solved using a finite volume method. The purpose of the simulation is to analyze the influences of changing parameters of geometric design of the proposed mechanism on the magnetic field distribution, flow field distribution, angular momentum, and output torque. Also, the influences of different numbers of poles and slots on the magnetic field distribution, flow field distribution, and attitude adjustment parameters are studied. It was found that the magnetic induction intensity, fluid velocity, angular momentum, and torque produced by the electromagnetic actuator with 4 poles and 24 slots are almost the largest in the proposed mechanism. Therefore, 4 poles and 24 slots are selected as the design parameter of the electromagnetic actuator. Furthermore, the magnetic field distribution, flow field distribution, angular momentum, and the output torque in four different fluid domains are studied. It was found that the angular momentum increases with the increase in the range of flow field. However, for a certain range of flow, the increase in angular momentum is minimum. In addition, the output torque produced by the fluid does not change basically with the flow field range. According to the numerical results, a combination of pole and slot numbers and the range of flow field are proposed for the physical design of the proposed mechanism. Note that this study can provide a reference for the optimal design of the proposed mechanism. Key words: Magnetohydrodynamic, fluid momentum controller, numerical simulation, angular momentum, output torque. Tables 3, Figs 20, Refs 22.
Technical framework for studying thermomagnetic convection in an extended closed loop
Authors: Koskov M.
Published: July 2024

The focus of this paper is a technical framework for studying thermomagnetic convection of ferrofluids in an extended closed loop that is a thin tube of circular cross-section. In the experiment, a short vertical section of the loop exposed to a nonuniform external magnetic field was heated. The remaining part of the loop was blown with a stream of thermostatic air to provide a constant heat transfer coefficient and an exponential temperature distribution along the tube. The damping decrement of the temperature perturbation was used to get information about the axial heat flux. Test experiments were performed with a colloidal solution of magnetite in moderately concentrated kerosene. It is shown that for Rayleigh numbers of the order of 103, the thermomagnetic convection mechanism causes a triple increase in heat transfer. Tables 1, Figs 8, Refs 16.
Effect of polydispersity on magnetoviscous properties of ferrofluids
Authors: Zubarev A. Yu. , Iskakova L. Yu.
Published: July 2024

The paper deals with a theoretical study of the magnetoviscous effect in polydisperse ferrofluids. A two-fractional model of colloid consisting of relatively large and small particles is studied. The model is based on the idea that the magnetoviscous effect is determined by chain-like aggregates formed by large particles. The effect of the small particle fraction is determined by two factors: (i) the magnetic interaction between large and small particles, which leads to a reduction of the chain length and weakening of the fluid magnetoviscosity, (ii) the steric interaction between small and large particles, which enlarges the chain length, therefore, enhances this effect. The resulting effect is determined by the ratio of the sizes of large and small particles. Figs 2, Refs 17.
Numerical simulation of tidal synchronization of the large-scale circulation in Rayleigh--Bénard convection with aspect ratio 1
Authors: Röhrborn S. , Jüstel P. , Galindo V. , Stefani F. , Stepanov R.
Published: July 2024

A possible explanation for the apparent phase stability of the 11.07-year Schwabe cycle of the solar dynamo was the subject of a series of recent papers [1-3]. The synchronization of the helicity of an instability with the azimuthal wavenumber m = 1 by a tidal m = 2 perturbation played a key role here. To analyze this type of interaction in a paradigmatic setup, we study a thermally driven Rayleigh-Bénard convection of a liquid metal under the influence of a tide-like electromagnetic forcing. As shown previously, the time-modulation of this forcing emerges as a peak frequency in the m = 2 mode of the radial flow velocity component. In this paper, we present new numerical results on the interplay between the large-scale circulation of a Rayleigh-Bénard convection flow and the time modulated electromagnetic forcing. Key words: Magnetohydrodynamics, Rayleigh-Bénard convection, liquid metal flow, electromagnetic forcing, CFD. Figs 7, Refs 10.
Comparison of numerical and experimental results on melt electrovortex flow driven by direct current supplied over top and bottom electrodes
Authors: Pavlovs S. , Jakovičs A. , Ivochkin Yu. , Chudnovsky A.
Published: July 2024

The present paper details a comparison of experimental and computational results for the electrovortex flow of mercury in cylindrical and semi-cylindrical vessels, which is driven by the direct electrical current supplied over top and bottom non-submerged electrodes. The time-averaged velocity of liquid metal computed using the LES model of turbulence qualitatively and quantitatively agrees with the measured profiles of the axial velocity for a cylindrical experimental setup. For a semi-cylindrical setup which represents possible ``cold'' physical modelling of MHD devices, the observed flow patterns at the free surface and the computed flow patterns also agree qualitatively. Tables 1, Figs 7, Refs 9.
Computational study of the aspect ratio effect on liquid metal flow in a rectangular duct with and without magnetic field
Authors: Tigrine Z. , Lecheheb S. , Bouabdallah A. , Mokhtari F. , Kharicha A.
Published: July 2024

We present a numerical investigation of the three-dimensional geometry effect on liquid metal flows in a rectangular duct subject to a transverse magnetic field using miniature cylinders immersed in fluid. Simulations are performed by means of a numerical method based on the finite volume method. The considered liquid metal is the 17Li83Pb eutectic alloy evolving in a rectangular channel. The influence of forced convection and magnetic field is studied. Streamwise counter rotating vortices are created in a spanwise direction by small devices intended for controlling the secondary flow near the wall region. It is found that the mushroom structure dominates in the flow at a low Reynolds number Reh ≤ 272. With a large Reynolds number, the flow regime is unstable downstream the duct showing horseshoe vortex patterns. By increasing the aspect ratio of the rectangular duct, the onset of steady streaks is delayed. Key words: Magnetohydrodynamics, liquid metal, numerical simulations, aspect ratio. Tables 1, Figs 8, Refs 26.
Magnetic fin for heat transfer enhancement in liquid metal duct flow
Authors: Solano-Olivares Verónica , Cuevas Sergio , Figueroa Aldo
Published: July 2024

The use of fins in heat exchangers is one of the most common procedures to promote heat transfer enhancement. Here, we explore numerically the effect of a non-intrusive electromagnetic method, namely, a magnetic fin, to enhance heat transfer in a liquid metal duct flow. The idea is to place a small-size magnet externally to the duct but close to a heated wall so that the Lorentz force created in the fluid by the interaction of the induced electric currents and the localized magnetic field brakes the liquid metal flow creating vorticity and improving the convective heat transfer. Thus, the action of the localized Lorentz force (i.e. the magnetic fin) is analogous to the surface force created by a solid fin. Focusing the attention on how the laminar bulk flow affected by the presence of a magnetic fin influences the heat transfer on a heated sidewall in a wide interval of Hartmann numbers (0 ≤ Ha ≤ 550) for fixed Reynolds numbers (Re = 500,1000,1500), a two-dimensional numerical approximation is implemented. Optimal values for heat transfer enhancement of the interaction parameter N = Ha2/Re and magnet-wall separation are determined as well as the percentage increment of heat transfer due to the presence of the magnetic fin. Figs 6, Refs 9.