bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengelolaan Kampung Pecinan Sudiroprajan Sebagai Daya Tarik Wisata Budaya Di Surakarta
Authors: Pradipta Made Prasta Yostitia , Satiti Emmelia Nadira
Published: October 2024

Sudiroprajan Chinatown has tourist attractions that can support cultural tourism attractions in Surakarta City. With multi-ethnic acculturation in terms of annual celebrations to the special foods available in Sudiroprajan Chinatown Village. However, due to the pandemic the Sudiroprajan Pokdarwis was no longer active and resulted in the paralysis of the tourist attraction icon in Sudiroprajan Chinatown Village. The purpose of this study is to find out what attractions exist in Sudiroprajan Chinatown Village and then to analyze the inhibiting factors for the development of tourist attractions and come up with some suggestions so that they can attract tourists to visit. To get the data in this research is to do direct observation, documentation, and direct interview with the Head of Pokdarwis Sudiroprajan and look for literature studies related to the research problem. The results obtained are many tourist attractions in the form of the Kali Pepe and Grebeg Sudiro river crossings. See the Lion Dance and various culinary delights. The obstacles found were regarding inconsistent management due to the large number of youth volunteers who have their own busy lives and finally the Covid-19 virus. Further research is suggested to expand the attraction of cultural tourism around the Surakarta City area.
Persepsi Generasi Z Terhadap Pariwisata Berkelanjutan Pada Destinasi Budaya: Studi Kasus Borobudur
Authors: Kurniasari Kenyo Kharisma , Gauh Perdana Bonifasius Endo , Sukaca Putra Rayhan Alfiano , Iban Carlos
Published: October 2024

Generasi Z merupakan generasi yang berpengaruh dalam industri pariwisata. Di masa kini, perilaku mereka dapat mempengaruhi preferensi perjalanan dan persepsi dalam mendukung pengembangan pariwisata berkelanjutan. Generasi ini juga dianggap sebagai generasi yang lebih sadar akan pelestarian lingkungan, sehingga persepsi akan upaya pelestarian lingkungan dan penerapan praktik pariwisata berkelanjutan di suatu destinasi dapat dapat meningkatkan persepsi positif destinasi tersebut. Selain itu, di masa mendatang mereka akan berpartisipasi aktif sebagai pemangku kepentingan pariwisata. Dengan memperhitungkan faktor-faktor yang mempengaruhi dan mengambil langkah-langkah yang sesuai, Destinasi Borobudur dapat memperkuat daya tariknya sebagai tujuan wisata budaya dan mengambil langkah strategis untuk peningkatan upaya pengembangan pariwisata berkelanjutan. Untuk itu, penelitian ini berusaha untuk menungkap faktor yang mempengaruhi persepsi Generasi Z terhadap keberhaasilan penerapan pariwisata berkelanjutan di Destinasi Borobudur. Data didapatkan dengan metode mixed-methods dengan instrumen kuisioner yang dilanjutkan dengan wawancara FGD. Hasil dari penelitian ini ditemukan bahwa destinasi Borobudur telah dianggap memberikan dampaik positif bagi industri pariwisata dalam hal peningkatan benefit ekonomi bagi masyarakat sekitar, ikut membantu pelestarian budaya, dan berkontribusi dalam mendukung inklusifitas dengan pemberdayaan perempuan. Namun, strategi pelestarian lingkungan masih dipandang kurang diupayakan, dan pemangku kepentingan di sekitar destinasi perlu untuk menyusun strategi yang lebih baik dalam menjaga keamanan wisatawan pada destinasi.
REVEALING POSTTRAUMATIC GROWTH, IDENTITY AND GLOBAL INFLUENCE IN DEMI LOVATO: DANCING WITH THE DEVIL DOCUMENTARY
Authors: Wijaya Clara Andita Dwi Putri , Munjid Achmad
Published: October 2024

As a singer and an actress, Demi Lovato has fame which can influence her fans globally. Further, with the mental health, addiction, and trauma issues, she gains positive changes in her life that affect and encourage her fans as well. The object of this study is Demi Lovato: Dancing with the Devil documentary series. This study reveals Lovato’s posttraumatic growth that influences her identity and global influence. The narratives, captured clips, posts, and previous research are used as the data in this study. This study uses the theory of posttraumatic growth and new media for data interpretation. The findings show that Lovato’s posttraumatic growth consists of five domains: personal strength, relations to others, new possibilities, appreciation of life, and spiritual and existential changes. Moreover, her posttraumatic growth also leads her to discover her identity as a non–binary person and bring positive impacts to her fans around the world and the non-binary community. Therefore, as a new media form, the Dancing with the Devil documentary series successfully delivers Lovato’s stories and struggles to people worldwide, especially her fans.
UNDERSTANDING PEOPLE’S PERCEPTIONS OF TESLA
Authors: Putri Elin Eprilin Fitrian Miela , Susilastuti Dewi H.
Published: October 2024

This research presents society's perceptions of Tesla through comments from the videos on their official YouTube channel. This research is focused on the perceptions of society through comments sections from four different videos. This research uses Poststructuralism as an approach that is supported by deconstruction theory by Derrida. From the deconstruction theory, this research employs the concept of difference to find out about many perceptions of Tesla in society. This research applies a qualitative descriptive technique, in which the author reports and analyses existing data. The data is taken from the comment section of four different videos from Tesla’s YouTube channel. From analyzing the data relating to the theory, it is found that Tesla has several perceptions in society which are that Tesla is a high-tech innovation, Tesla is environmentally friendly, Tesla is expensive, Tesla is high-maintainable, and Tesla is a family car. These new perspectives show that the car has been accepted into society and plays a significant role in society.
Construction and Validation of a Prognostic Prediction Model for Gastric Mucinous Adenocarcinoma Based on the SEER Database
Authors: Yan Peng , Jin Zhiliang
Published: October 2024

This study focused on the development and validation of a prognostic model to predict overall survival (OS) in patients with gastric mucinous adenocarcinoma (GMA), utilizing data from the SEER database. A cohort of 537 GMA patients was analyzed to identify factors affecting survival, using both univariate and multivariate Cox regression analyses on demographic and clinicopathological variables. The analysis led to the creation of a nomogram model. Findings revealed that TNM staging and the administration of radiotherapy or chemotherapy were significant factors impacting survival outcomes. Specifically, patients at stages T4, N3, and M1 faced a notably higher mortality risk, while those who received radiotherapy and chemotherapy experienced a significant reduction in mortality risk. The model's performance, as indicated by C-indices of 0.73 in the training set and 0.66 in the validation set, suggests robust predictive capability. The area under the curve (AUC) analysis confirmed high accuracy in predicting 1-year, 3-year, and 5-year survival rates, and calibration curves displayed strong agreement between predicted and actual outcomes. Decision curve analysis (DCA) demonstrated that the model exhibited significant clinical utility across various thresholds. Overall, this study presents a reliable prognostic tool for individualized risk stratification and clinical treatment in GMA patients. Future work should focus on enhancing the model by incorporating molecular biological data to increase its predictive accuracy and applicability.
ADAPTIVE COMPLEX FILTERS BASED TRANSMITTER IQ IMBALANCE REJECTION
Authors: Jovanović Borisav , Milenković Srđan
Published: October 2024

This paper presents an efficient method for compensation of frequency-dependent (FD) transmitter In-phase Quadrature (IQ) imbalance. Proposed method compensates imbalance by exploiting indirect learning architecture (ILA) and complex filters whose coefficients are determined in an iterative process. Compensation performance is assessed after the method has been implemented in a Software Defined Radio (SDR) platform, capable of transmitting modulations at different central frequencies. Measured results demonstrate that the imbalance related images are reduced down to the noise floor. After applying the proposed IQ imbalance correction method, the transmitter image rejection ratio (IRR) is increased by 15dB in the case of an SDR transmitter operating at central frequency of 1.7 GHz. The ADC/DAC sampling rate is 61.44MS/s, while the signal bandwidth, for which the compensation is performed, is 30.72MHz. The advantage of the proposed method is low complexity in terms of a reduced number of coefficients. The method is generic and can be utilized for IQ imbalance compensation when wideband signals are transmitted.
REFLEXIVITY OF LINEAR n-NORMED SPACE WITH RESPECT TO b-LINEAR FUNCTIONAL
Authors: Ghosh Prasenjit , Samanta Tapas K.
Published: October 2024

In this paper, we discuss various consequences of Hahn-Banach theorem for bounded b-linear functional in linear n-normed space and describe the notion of re exivity of linear n-normed space with respect to bounded b-linear functional. The concepts of strong convergence and weak convergence of a sequence of vectors with respect to bounded b-linear functionals in linear n-normed space have been introduced and some of their properties are being discussed.
NONLOCAL BOUNDARY VALUE PROBLEM OF NONLINEAR FRACTIONAL DIFFERENTIAL EQUATION ON THE HALF-LINE
Authors: Ghendir Aoun Abdellatif
Published: October 2024

This paper aims to investigate a class for nonlocal fractional boundary value problem on an infinite interval due to its importance in provide a powerful tool for mathematical modeling of complex phenomena in science. New existence results are acquired for the given problem by using the Krasnosel’skii’s fixed point theorem. Moreover, sufficient conditions are obtained as well as a modified compactness criterion that guarantees the existence of at least one solution. In addition, an illustrative example is given in the final part of the paper.
Enhancing the electrochemical performance of next-generation 5 V class Li-ion batteries using LiPF6/LiBOB mixed salt electrolyte
Authors: Sudaryanto  , Salsabila N. , Salsabila A. A. , Fachrudin A. C. , Sari P. A. K. , Lestariningsih T. , Priyono S. , Yulianti E. , Nursanto E. B. , Karunawan J.
Published: October 2024

Modification of LiPF6-based electrolytes by simply combining two lithium salts to obtain a mixed electrolyte has been demonstrated as a potential strategy for the next-generation 5 V class lithium-ion battery, hindered by electrolyte decomposition and transition metal dissolution. In this study, LiPF6/LiBOB mixed salt electrolyte with different LiBOB content (10% and 20%) in EC/DEC/DMC at a ratio of 1:1:1 (v/v) was tested in the high-voltage LiNi0.5Mn1.5O4 (LNMO) cathode to optimize their electrochemical performances. The mixed salt electrolyte performed higher ionic conductivity and better stability window than the baseline LiPF6 electrolyte. A series of electrochemical measurements, including EIS, CV, and CD, are performed in the half-cell configuration with Li-metal. LiPF6 electrolytes with 10% LiBOB showed higher discharge capacity up to 133.5 mAh g-1, better cycle stability up to 1C, and remained stable after 25 cycles. The improved performance of the mixed salt electrolyte can be attributed to the surface-forming ability of LiBOB in providing a stable (Cathode-Electrolyte Interface (CEI) layer. In our finding, the synergistic effect between LiPF6 and LiBOB has a certain optimal ratio in which the higher ratio of up to 20% tends to decrease the overall electrochemical performance of the high-voltage LNMO cathode.
BCI-based real-time processing for implementing deep learning frameworks using motor imagery paradigms
Authors: Gomez-Rivera Y. A. , Cardona-Álvarez Y. , Gomez-Morales O. W. , Alvarez-Meza A. M. , Castellanos-Domínguez G.
Published: October 2024

As a cognitive process, motor imagery (MI) includes mentally simulating motor actions in the absence of physical movement. It has a variety of uses, including assistive technologies, medical diagnostics, and rehabilitation. MI paradigms are utilized in conjunction with brain-computer interfaces (BCI), which use electroencephalographic recordings (EEG) because of their high temporal resolution, cheap cost, portability, and non-invasiveness. BCIs apply MI paradigms by directly connecting the human brain to a computer. However, because scalp readings are non-stationary and non-linear, real-time processing of EEG signals is challenging. Furthermore, in order to minimize the impact of outside noise and artifacts, clinical MI methods must be implemented under carefully monitored laboratory conditions. A deep learning model-based approach is shown for analyzing EEG data and giving real-time feedback to a brain-computer interface. Generally, the system's design is portable and low-cost, allowing the MI paradigm to perform under poorly regulated sampling conditions.
Design an on-grid PV system to supply electricity to a school in Babil city using PVsyst software
Authors: Al Sarhan F. F.
Published: October 2024

The world attention is increasingly directed towards solar energy, particularly in countries of high solar radiation rates such as Iraq, due to the limitation of fossil fuel resources and the high pollution rates associated with using them. Engineers and researchers utilize different techniques in order to design the photovoltaic systems with low cost and high performance. This research aims at designing an optimal on-grid PV system to feed a school, located at Babel, Iraq using PVsyst program. The PVsyst methodology includes defining the geographical location of the project, determining the demand electrical load, selecting the type of the PV system components, and finally running the simulation. Detailed results, including the produced energy, loses diagram, economic and environmental evaluations can be obtained. The results show that a PV system comprising of 90 (450 Wp) panels and 3 (12 kWac) inverters on an area of 198 m2 can produce a net output energy at 70.23 MWh. The economic evaluation show that the project cost can be recovered within less than 10 years, and a net positive gain up to 20,000 USD can be attained during the 25 years project lifetime. A huge carbon emission equal to 1279.6 tCo2 can be saved as a result of this PV system installation. There is an obvious need to invest in solar energy for economic and environmental considerations. The main drawback of PV systems installations is the high capital cost. Using commercial packages, particularly PVsyst program, can significantly contributes toward optimizing the system design and hence reducing the project cost.
AI in Soil Health Monitoring: A Data-Driven Approach
Authors: Jana Sunit , Chatterjee Deepshikha , Pal Nikita , Pal Koushik , Roy Kaushik , Bashak Surajit
Published: October 2024

Abstract: The sustainability of ecosystems and agricultural productivity depend on healthy soil. However, conventional techniques for evaluating soil health are sometimes time-consuming, labor-intensive, and restricted in their geographic reach. New opportunities for scalable, real-time soil health monitoring have been made possible by recent developments in artificial intelligence (AI) and data-driven methodologies. This study examines a thorough AI-powered system for tracking soil health, emphasizing methods for data collection, processing, and predictive modeling. AI models can provide precise forecasts of soil characteristics, health indicators, and possible crop yields by combining data from multiple sources, such as remote sensing, soil sensors, and historical data. This study offers a comprehensive analysis of recent AI applications in soil health monitoring and suggests a reliable, scalable approach intended to incorporate diverse data sources, guaranteeing precise and effective soil health assessment.
Sharia Internal Control towards Organizational Commitment: Implementation and its’ Implication
Authors: Azis Abdul
Published: October 2024

This study aimed to investigate the correlation between organizational commitment, organizational culture, ownership structure, good corporate governance and internal sharia control. The participants of the study consisted of 244 active employees working as leaders at the Surgical Department of Andi Makkasau Hospital, Parepare. The Partial Least Square (PLS) path modelling was used in data analysi. Employees who have high organizational commitment and can implement internal sharia control in doing their work will have better performance. This can help reduce the rate of employee turnover and increasing employee attendance rates and also become intellectual property in the field of Islamic economics.
The Effect of Some Biological Fungicides and Liquid Organic Fertilizers on Sigatoka Disease on ‘Mas’ Banana Plants (Musa acuminata Colla)
Authors: Kharisma Anugerah Iffanda , Indratmi Dian , Ikhwan Ali
Published: October 2024

Banana (Musa acuminata Colla) is a tropical fruit with great economic potential and export prospects. According to the Directorate General of Horticulture, Ministry of Agriculture, banana production from 2009 to 2014 fluctuated due to attacks by Plant Destruction Organisms (PDO), particularly Sigatoka disease caused by the fungus Mycosphaerella musciola. This study investigated biological agents like Trichoderma sp. and Gliocladium sp., along with liquid organic fertilizers, to control the disease without synthetic fungicides.The research, conducted at the University of Muhammadiyah Malang, used a split-plot design with two factors: biological pesticides (Tricogreen, Natural Glio, Trico-G) and liquid organic fertilizers (rabbit urine POC, shrimp shell MOL, banana hump MOL). The experiment had nine treatment combinations with three plant samples each. Results showed that biological pesticides significantly reduced Sigatoka disease intensity, with the J3P3 treatment (Trico-G and Banana Hump MOL) achieving the lowest infection rate of 29.55%, reducing disease intensity by 70.45%. Liquid organic fertilizers also improved plant growth, increasing leaf number and leaf area. This indicates that biological agents and organic fertilizers effectively manage Sigatoka disease and promote healthy banana plant growth.
Development of a Peace Education Model Based on the Lives of Learners
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, SON SeoJeong , CHOI Jungui
Published: October 2024

Objectives This study aims to develop the model of a peace education that would enable learners to create and expand peace in their actual lives.
Methods Based on the Groome’s educational approach, ‘life to Faith and Faith to Life,’ this research has developed a peace education model, designed programs, and conducted action research. I conducted a peace education pro-gram every week for the second semester of 2022 with 128 first-year students at a High School, a formal educa-tion site. Then, I implemented another peace education program in the first half of 2023 hosted by a Peace Center, a non-formal educational site, combining three sessions of real-time remote education and a peace camp for 2 nights and 3 days.
Results I derived the 9R model by analyzing participants’ experiences and meanings through class observation and interviews. The elements of the 9R model are Round, Remind, Relate, Refer, Reason, Reflect, Revive, Request, and Recreate. By connecting these elements to the movement of education, one can recognize “current life (Round-Remind-Relate)”, internalize “deep knowledge(Refer-Reason-Reflect)”, and integrate “moving-forward life (Revive-Request-Recreate).”
Conclusions With this process, peace can be actualized in the lives of learners. Hence I argue if the 9R model can be integrated into various educational fields, it will be possible to build a culture of peace that revives lives in soci-eties that are seeking peace.
A Phenomenological Study on Experience of Using Generative AI by University Students
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Noh YangJin , Park Dongseong
Published: October 2024

Objectives This study aims to explore the direction of Generative AI literacy education through the exploration of college students' experiences using Generative AI.
Methods For this purpose, written and face-to-face in-depth interviews were conducted with 12 university stu-dents (5 male students and 7 female students) and analyzed by applying Colaizzi's phenomenological method, which consists of seven steps to explore the nature of common experiences rather than the individual participants.
Results As a result of analyzing the interview data, 5 semantic themes and 14 sub-themes were derived under the essence of the experience called ‘co-evolution’. The five semantic themes consist of ‘getting to know new media’, ‘useful but dangerous existence’, ‘sharing roles with Generative AI’, ‘adapting to changes in the learning environment’, and ‘seeking a life that coexists with Generative AI’. The 14 semantic themes consisted of ‘matching up with Generative AI’, ‘creating my own method of using prompts’, ‘limitation of inanimate object’, ‘repeating unnecessary learning activities’, ‘incomplete learning assistant’, ‘my own tutor’, ‘reducing learning time’, ‘setting my own scope of use’, ‘another team member’, ‘passive new media user’, ‘recognition of reality and acceptance of new media’, ‘improving the competence to use Generative AI’, ‘selecting Generative AI according to the purpose of use’, and ‘competition with the human-specific domain’.
Conclusions The discussion points on the direction of Generative AI literacy education for university students are as follows. First, it provides education in which prompts can be effectively input. Second, it provides guidelines so that the Generative AI can be used as an auxiliary tool rather than the main tool for learning. Third, it provides education on the characteristics of the Generative AI. Fourth, it enhances education on usage ethics.
Study on primary and secondary school integrated volunteer activities of Rover Scouts: Exploring the potential of Rover Scout system as educational volunteer activities
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Jung Hyung-Soo
Published: October 2024

Objectives This study aims to explore the potential of the Rover Scout program as an educational volunteer activity by analyzing the experiences of university students who are Rover Scouts affiliated with the Korea Scout Association. These students participated in volunteer activities, guiding students during school field trips in ele-mentary and secondary schools.
Methods To achieve this, a qualitative case study was conducted on the volunteer activities of university students who are Rover Scouts. These activities were carried out in collaboration with elementary and secondary schools under the jurisdiction of a local educational office (both entities are anonymized as A Association and A Educational Office, respectively). In-depth interviews and participant observations were conducted with five university stu-dents and graduates who voluntarily continued to perform over 100 hours of volunteer work for more than a year, even after fulfilling their graduation requirements.
Results The participants gained diverse experiences in guiding students during activities outside the classroom, which were often in unstable environments. Due to the systematic volunteer management system centered around A Association, the participants were able to sustain their volunteer activities for an extended period, which enhanced their understanding of students and nurtured their aspirations to become teachers. However, they also faced challenges, such as a lack of support from their universities and the absence of clear boundaries regarding the role of Rover Scouts in volunteer work.
Conclusions The Rover Scout activities, as analyzed in this study, were consistent with the purposes and content of educational volunteer activities. Moreover, these activities contributed to developing essential skills and expe-riences, such as knowledge related to organizing field trips and managing student behavior, which are crucial for teachers but difficult to acquire through traditional teacher training programs. Based on these findings, the study suggests implications for improving university volunteer programs and the Rover Scout system to enhance the quality of volunteer activities.
Changes and tasks in non-face-to-face counseling service operation: Focusing on domestic sites
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Hwang Yong-yeon , Lee Young-sun
Published: October 2024

Objectives This study aims to identify operational changes and challenges in the development of non-face- to-face counseling by comparing the past and present usage of contactless counseling in the context of the rapid increase in the use of contactless counseling due to the spread of COVID-19 and the development of information technology.
Methods For comparison with the past, we used the survey methodology from a previous study (Kim, Kye-hyun, & Lim, Eun-mi, 2000) and analyzed 113 counseling sites, including five items (‘service target’, ‘service operator’, ‘counseling method’, ‘counseling content’, and ‘usage fee’) and two additional items (‘counselor’s expertise’ and ‘guidance on using non-face-to-face counseling’) as survey indicators.
Results First, we found that counseling methods, which were limited in the early days of non-face-to-face coun-seling, are now being diversified through the development of technology and the expansion of media use. Second, we observed a new way of connecting counselors by establishing platforms for non-face-to-face counseling at large portal sites and private counseling organizations, not limited to the free services provided by public in-stitutions in the past. Third, although guidance for non-face-to-face counseling is currently provided, there is a lack of information on the expertise and confidentiality of counselors.
Conclusions This study aims to identify the current status of non-face-to-face counseling in Korea by comparing the past and present operation status of non-face-to-face counseling in Korea, and to identify development tasks. It is expected to provide various implications on the need to strengthen the awareness, professionalism, and eth-ical considerations of non-face-to-face counseling.
Analysis of Teaching a Midpoint of  Textbooks according to the 2015 Revised Curriculum
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Heo Nam Gu
Published: October 2024

Objectives The purpose of this study is to analyze whether to introduce coordinates that midpoint on the line seg-ment and the learning contents that show different description methods of the  textbooks according to the 2015 revised curriculum.
Methods To do this, seven  textbooks according to the 2015 revised curriculum were analyzed.
Results First, only three of seven  textbooks introduce the coordinates of the midpoint of the line segment. Two of these were introduced in the coordinate plane, and the other one was provided to the auxil-iary space as a hint to solve the equation problem of the circle. Second, three of the seven  textbooks presented a problem to be solved using the coordinates of the midpoint of the line segment. In the equation of the straight line, it is presented as a problem of finding a perpendicular bisector of a line segment, and in the equation of the circle, it was presented as a problem of finding an equation of a circle given both end points of the diameter. Third, the method of describing the contents of the symmetric movement about the straight line    was different depending on whether or not it was introduced into the coordinates of the center.
Conclusions Changes in the curriculum due to the nature of the mathematics subject not only affect the teaching and learning methods of that part, but also the teaching methods of other parts. Therefore, it is necessary to con-tinuously study the learning contents and changes in teaching and learning materials such as textbooks according to changes in the curriculum.
The Mediating Effect of Lifelong Education Participation in the Relationship Between Baby Boomers Social Capital and Quality of life
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Hwang Seongdong , Choi Woongyong , Lee Yunju
Published: October 2024

Objectives The purpose of this study was to establish counseling intervention strategies that can increase social capital and lifelong education participation of baby boomers in career education and career counseling sites, and to provide various basic data to improve quality of life.
Methods For this purpose, 112 responses were received and analyzed through an online survey from October 8 to 15, 2023, targeting baby boomers (born between 1955 and 1963) living in the Daegu and Gyeongbuk regions. For the collected data, reliability analysis, descriptive statistics, correlation analysis, and regression analysis were conducted for each variable using the SPSS 23.0 statistical program, and the Sobel Test was conducted to analyze statistical significance.
Results First, baby boomers social capital was found to have a significant positive effect on quality of life. Second, baby boomers social capital was found to have a positive effect on lifelong education participation. Third, baby boomers lifelong education participation was found to have a positive effect on quality of life. Fourth, lifelong edu-cation participation was found to mediate the relationship between baby boomers social capital and quality of life.
Conclusions The results of this study show that in order to improve the quality of life of baby boomers, it is neces-sary to recognize the need for social capital and lifelong education and to develop and implement education and counseling programs that can provide systematic help.
Early Childhood Teachers’ Perception, Implementation and Demands of Value Education
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kang Yun-ju , Hwang In-ae
Published: October 2024

Objectives In this study, we examined early childhood teachers' perceptions of value education and explored the implementation of value education in early childhood education institutions, and explored demands for value edu-cation improvement.
Methods For this purpose, from May 21 to August 5, 2023, a total of 20 individual interviews were conducted twice per person for 10 teachers in kindergartens and daycare centers in Seoul and Gyeonggi for 4~5 year olds, and researcher journals, research participants journals, and other data were collected and analyzed.
Results Early childhood teachers’ perception of value education was divided into ‘education to create a foundation for behavior’, ‘education for forming the right personality’, and ‘essential education for living together’. Also, early childhood teachers' value education implementation was divided into ‘reading values i n play and daily life,’ ‘informing various values through value activities,’ ‘transmitting value through modeling,’ and ‘continuing value education with family.’. In addition, the demands for improving value education for early childhood teachers were divided into ‘activation of value understanding education for teachers,’, ‘support for value education implementation materials for young children’, ‘providing a place for communication between teachers to share value education ex-periences’, and “support for improving parents’ and society’s perception of value education.”
Conclusions This study is meaningful in that it understood how early childhood teachers perceive value education, how they implement value education, what their needs to improving value education by exploring early childhood teachers' perception, implementation, and demands of value education. Through this, it is expected to be provided as basic data to understand the practical measures of early childhood teachers for early childhood value education and prepare support measures for more effective value education implementation.
The impact on Play Teaching Efficacy of Early Childhood Teachers' Self-Esteem and Expertise Awareness
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Kab Soon , Kim Eung Ja
Published: October 2024

Objectives The purpose of this study was to analyze the impact on play teaching efficacy of early childhood teach-ers’ self-esteem and expertise awareness.
Methods The survey target was one hundred twenty-nine early childhood teachers in Seoul and Gyeonggi-do. Cronbach Coefficient was calculated to test reliability of the survey questionnaires for the collected data, and Pearson’s Ratio Correlation Analysis was applied to perceive the relationship among early childhood teachers’ self-esteem, expertise awareness, and play teaching efficacy. Multiple Regression Analysis implemented to see the impact on play teaching efficacy of early childhood teachers’ self-esteem and expertise awareness.
Results First, there was significant static correlation in between early childhood teachers’ self-esteem and ex-pertise awareness. Second, only the teachers’ expertise awareness showed as the meaningful static predictor in the impact on play teaching efficacy of early childhood teachers’ self-esteem and expertise awareness. These re-sults mean that the play teaching efficacy is proportional to the level of expertise awareness. Upon analyzing sub-factors, the self-esteem and expertise awareness, and the only expertise awareness are presented as the significant predictors of the play teaching efficacy and the expectation about play teaching result respectively.
Conclusions This study would provide a basic data to develop the program for enhancing early childhood teachers’ play teaching efficacy.
Evolving Concepts of Technology Education Curriculum in Pre-service Teachers: A Case Study at C University
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lim Yunjin , Kim Boyoung
Published: October 2024

Objectives This study aims to identify the process of pre-service technology teachers' understanding of the cur-riculum through the formation and change of pre-service technology teachers' conceptions of the technology curriculum.
Methods A total of 94 pre-service technology teachers taking the ‘Technology Curriculum’ course were surveyed to collect their conceptions of the technology curriculum before and after the course. The number of pre-service technology teachers studied was 48 in 2022 and 46 in 2023. The collected concepts were analyzed for frequency, centrality, clustering groups, structural hole, and ego network analysis using semantic network analysis.
Results Before taking the course, pre-service technology teachers recognized the concept of achieving ‘educational goals’ as the main concept. In addition, it was possible to apply curriculum-related contents after the class, and changes in concepts occurred in curriculum-related specialized contents. In addition, it was possible to apply cur-riculum-related contents after the class, and changes in concepts occurred in curriculum-related specialized contents. In addition, it was possible to confirm that concepts were expanded and differentiated in terms of curric-ulum design and operation from the perspective of technical subjects teachers after the class.
Conclusions Through this study, the concept of curriculum was materialized, and it can be used as a basis for fu-ture curriculum revision through changes to a cohesive conceptual structure and influence relationships with major curriculum variables.
Profiling English Abilities of Korean 5th Graders with and without Developmental Dyslexia
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Sodam , Pae Soyeong
Published: October 2024

Objectives Most Korean students learn English as a second language from 3rd grade in public school curriculum. Despite receiving the same instruction in schools, there are concerns about the individual differences in English abilities among Korean students. Students with developmental dyslexia, who have difficulties in reading and writ-ing in their native language, also struggle with reading and writing in English. This study aimed to confirm the strengths and weaknesses of students through individual profiling of English abilties.
Methods This study focused on two typical development students(TD who are A and B) and two developmental dyslexic students(DD who are C and D) in 5th grade. We developed the tests to profile English abilities, focusing on word reading, word writing, vocabulary, and meta-linguistic awareness abilities.
Results In word reading and word writing, the TD showed higher performance than DD. In vocabulary, A, B, and C showed similar high performance, while D showed lower performance. In meta-linguistic awareness abilities, including phonological awareness(PA), syntactic awareness(SA), and orthographical awareness(OA), TD showed high performance in all abilities. Among the DD, C had weaknesses in SA compared to PA and OA, while D showed weaknesses in all abilities.
Conclusions This study highlights the profiling of diverse English abilities among four 5th grade students. While DD showed different profiles in this study, they commonly demonstrated lower performance in reading and writing compared to TD, as well as lower metalinguistic awareness. It suggests that DD may require individualized educa-tion plan(IEP) based on their strengths and weaknesses.
Creation and Sharing System of Polycentric Curriculum as a Future School Curriculum Framework
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Jeong Young-keun , Min Yong-seong , Lee Keun-ho
Published: October 2024

Objectives This study recognizes the need to explore a school curriculum system that responds to the changes brought about by the future hyper-connected networks, artificial intelligence era, and intelligent information society. As an alternative to the traditional Research, Development, and Dissemination (RDD) system of curricu-lum, we investigated the creation and sharing system of a polycentric curriculum.
Methods To achieve the research objectives, we conducted two rounds of Delphi surveys with 50 education ex-perts, based on scenario construction for the future school curriculum system. Additionally, we carried out a per-ception survey targeting a total of 3,409 participants, including students, parents, teachers, and educational professionals. This was complemented by a semantic network analysis.
Results The results of the first and second rounds of Delphi surveys with experts confirmed seven scenarios re-lated to the development and creation of future curricula. There was a high response rate of agreement on the an-ticipated scenarios related to curriculum development and creation in response to societal changes. Additionally, the semantic network analysis revealed that keywords such as individual student curricula, online networks, con-vergence and fusion curricula, online open markets, and digital and artificial intelligence technologies best repre-sent the characteristics of future curriculum development and creation.
Conclusions In a future hyper-connected network society built on the integration of advanced digital information and artificial intelligence technologies, the traditional curriculum research, development, and dissemination sys-tem will transition to a polycentric curriculum creation and sharing system. Consequently, future curricula will be based on connected networks, establishing a unified system that will activate network-based curricula. This net-work curriculum system will form an educational ecosystem centered around educational stakeholders, function-ing through connected networks like a living organism.
Analysis of the Literature Education Content in the Australian National Language Curriculum Based on the Understanding by Design Framework
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee EunHong
Published: October 2024

Objectives This study aims to identify the advantages and limitations that may arise when the Understanding by Design (UbD) framework is fully implemented in the literature domain of the Korean language curriculum by analyzing the educational content of the literature domain in the Australian national language curriculum based on the UbD framework.
Methods For this purpose, I selected educational content combined with performance verbs related to understanding (explanation, interpretation, application, perspective, empathy, self-knowledge) provided by the UbD framework from the literature domain of the Australian national language curriculum (version 9.0). The selected content was then analyzed according to sub-domains of literature and types of understanding.
Results In terms of sub-domains, cognitive activities were distributed as educational content, focusing on the exploration of literature represented in socio-cultural and historical contexts (), engagement and response to literature (), multifaceted exploration of literary forms (), and the transfer of literary knowledge (). Regarding types of understanding, the content was designed to ‘explain’ the reasons and methods of appreciating literature, ‘interpret’ by attributing value to understanding literature, ‘apply’ literary knowledge appropriately in new contexts, form ‘perspectives’ by relationally expanding and refining understanding of literature, and develop ‘self-knowledge’ by reflecting on personal understanding of literature.
Conclusions The advantage of this approach is that it allows for a meta-understanding of literature by using literature phenomena as the organizing principle of literature education content and promotes the formation of a knowledge repertoire for transfer based on conditional knowledge. However, a limitation is that literature education activities tend to be biased towards the generalization of knowledge.
ASAM LEMAK BERBASIS MINYAK SAWIT DAN MINYAK INTI SAWIT: PROSES PRODUKSI DAN STABILITAS WARNA
Authors: Hasibuan Hasrul Abdi , Anshari Muhammad , Erlangga Habibi Nasution M.
Published: October 2024

Asam lemak merupakan salah satu produk oleokimia yang dapat dihasilkan melalui proses hidrolisis minyak atau lemak. Di industri oleokimia di Indonesia, proses produksi asam lemak umumnya dilakukan dalam kolom splitting menggunakan air berlebih pada suhu dan tekanan tinggi. Minyak sawit, minyak inti sawit dan fraksi-fraksinya baik dalam bentuk crude maupun refined bleached deodorized (RBD) dapat digunakan sebagai bahan baku untuk produksi asam lemak. Karakteristik produk asam lemak dari proses splitting (split fatty acid) dari crude dan RBD oil meliputi komposisi asam lemak, bilangan asam, bilangan penyabunan, bilangan iod dan bentuk fisik adalah relatif sama. Pada perdagangannya, split fatty acid dari CPO dan CPKO dikenakan pungutan ekspor dengan pos tarif ex 3823.19.90, dimana kategori produk split fatty acid dari CPO atau CPKO adalah color Lovibon 5 ¼ “cell dengan nilai red (R) ≥ 3. Kategori warna tersebut akan sulit digunakan untuk membedakan bahan baku produk split fatty acid dari RBD oil yang memiliki warna R ≥ 3, karena banyak faktor yang memengaruhi warna dari split fatty acid. Produksi asam lemak melalui proses splitting diharapkan menghasilkan produk dengan nilai derajat splitting > 98%. Warna asam lemak sangat dipengaruhi oleh suhu pemanasan, adanya senyawa minor yang terdegradasi, asam lemak jenuh, asam lemak tak jenuh dan asam lemak rantai pendek, serta kontaminasi dari material tangka dan pipa.
KEPUTUSAN KONSUMEN MEMBELI KECAMBAH KELAPA SAWIT PUSAT PENELITIAN KELAPA SAWIT
Authors: Silaban Burju , Amalia Rizki , Nurkhoiry Ratnawati , Prima Sani Nasution Zulfi
Published: October 2024

Pusat Penelitian Kelapa Sawit (PPKS) merupakan produsen penghasil kecambah kelapa sawit varietas unggul. Beberapa varietas unggul PPKS yang telah dihasilkan menyebabkan perbedaan perilaku konsumen dalam pengambilan keputusan pembelian. Penelitian ini bertujuan untuk mengetahui proses pengambilan keputusan petani dalam membeli kecambah kelapa sawit PPKS. Metode yang digunakan adalah analisis deskriptif, dengan jumlah sampel sebanyak 44 sampel. Hasil analisis menunjukkan bahwa motivasi petani menanam kelapa sawit yaitu untuk memperoleh keuntungan (66%), dan petani menyatakan sangat penting menggunakan kecambah berkualitas. Petani mengetahui kecambah kelapa sawit PPKS dari media sosial PPKS (39%) dan keluarga (23%), serta informasi yang paling penting diketahui adalah kualitas kecambah (66%). Atribut yang paling dipertimbangkan petani dalam membeli kecambah kelapa sawit PPKS adalah potensi TBS, harga, kemudahan akses dan pelayanan (45%). Pada tahap keputusan membeli, petani terlebih dahulu merencanakan pembelian kecambah, dan keputusan membeli yang disengaja dari diri sendiri (84%). Pembelian dilakukan dengan cara datang langsung ke kantor PPKS (51%), dan varietas yang paling banyak dibeli adalah varietas turunan Yangambi (48%) dan varietas Dumpy (27%). Petani yang melakukan pembelian kecambah PPKS (98%) puas, dan akan melakukan pembelian ulang (100%). Selanjutnya apabila harga naik, petani akan tetap membeli (91%), dan jika kecambah yang diinginkan tidak tersedia, petani akan menunggu ketersedian varietas tersebut (48%). Petani juga menyatakan akan merekomendasikan kecambah PPKS kekonsumen lainnya.
PENGEMBANGAN METODE ANALISA KADAR KLORIN PADA CRUDE PALM OIL MENGGUNAKAN ARGENTOMETRI
Authors: Abdi Hasibuan Hasrul , Harly Perdana Intan , Erlangga Habibi Nasution Muhammad
Published: October 2024

Crude Palm Oil (CPO) memiliki peran penting sebagai bahan baku dalam industri pangan dan non-pangan. Produk turunan CPO sebagai produk pangan dihadapkan pada isu kandungan senyawa 3- monokloropropanadiol ester (3-MCPDE) sebagai kontaminan yang berpotensi merugikan kesehatan manusia. Senyawa 3-MCPDE terbentuk karena adanya prekursor berupa senyawa klorin dan asilgliserol parsial yang dipicu oleh pemanasan CPO pada suhu tinggi yaitu selama proses rafinasi. Senyawa klorin yang terkandung pada CPO dapat berasal dari tandan buah segar (TBS), air yang digunakan pada pengolahan TBS di pabrik kelapa sawit (PKS) dan bleaching earth untuk proses pemucatan pada rafinasi CPO. Dalam pemenuhan standar keamanan pangan untuk mengatasi potensi resiko kesehatan, diharapkan PKS menghasilkan CPO dengan senyawa klorin yang rendah. Untuk itu, penentuan klorin pada CPO perlu dikembangkan dan saat ini telah banyak alat-alat modern yang digunakan untuk menganalisis klorin dengan hasil yang optimal. Namun demikian, metode penentuan kadar klorin secara sederhana yang akurat juga perlu dikembangkan untuk memudahkan praktisi laboratorium di PKS dalam menganalisis kadar klorin pada CPO. Penelitian ini dilakukan untuk mengembangkan metode analisa dalam penentuan kadar klorin pada CPO menggunakan metode argentometri dan dibandingkan dengan alat chloridometer. Hasil penelitian menunjukkan bahwa metode argentometri memberikan kadar klorin yang lebih mendekati kadar klorin yang sebenarnya yang ditambahkan pada CPO (0 – 25 ppm) dengan koefisien korelasi (R2) sebesar 0,9985. Uji perolehan kembali (% recovery) klorin pada konsentrasi 0,5 – 100 ppm diperoleh nilai sebesar 81,5 – 116,8%.
Gibson – Ashby equation for cellular materials based on triply periodic minimal surfaces
Authors: Shevchenko V. Ya. , Oryshchenko A. S. , Balabanov S. V. , Sychev M. M. , Pavlova E. A.
Published: October 2024

The paper presents experimental data on the physical and mechanical properties of cellular materials with the geometry of triply periodic minimal surfaces (TPMS). It has been established that the dependence of the strength and Young’s modulus on the relative density of materials with the TPMS geometry corresponds to the Gibson – Ashby equation with a fairly high accuracy. Such materials are superior in mechanical properties to classical cellular materials and have high isotropy of mechanical properties.