bluuebunny/crossref_metadata_2025 huggingface dataset:
Water consumption behaviour and the use of technology among households in Durban, South Africa
Authors: Ngcobo Mbuso , Murwirapachena Genius , Reddy Maliga
Published: April 2023

Freshwater resources remain under constant pressure due to population growth, economic development, and changing weather patterns. Water supply utilities generally struggle to keep up with the growing demand for freshwater resources and consequently adopt demand management policies to address supply challenges. As water consumers, households can play a major role in water conservation. This paper examines the impact of biographic characteristics on water consumption behaviour and the adoption of water-efficient technologies in the city of Durban, South Africa. Probit regression models are estimated using survey data collected from 300 household heads sampled across the city. Among other results, the study finds income as the most consistent determinant of water consumption behaviours and the adoption of water-efficient technologies. Furthermore, the level of education was also found to be a consistent determinant of the adoption and installation of water-efficient technologies. These results are significant and serve to guide water utilities when implementing demand management water policies.
Modelling future flood events under climate change scenarios in the Pungwe River Basin
Authors: Paulo Mavaringana Moises de Jesus , Gumindoga Webster , Kileshye Onema Jean-Marie , Makurira Hodson
Published: April 2023

This study sought to project future changes in hydroclimatic variables and to establish how climate change affects flood inundation extent in the Pungwe River Basin. Climate ensembles of 10 Regional Climate Models from the CORDEX project were selected. The historical rainfall and temperature time series and the downscaled climate data were input into the HBV model to generate streamflow for the 2022–2099 period. Flood extents for 50-, 100-and 1,000-year return periods were predicted using the HEC-RAS hydraulic model. By 2070, annual rainfall at all nine studied meteorological stations is predicted to reduce by a maximum of 61%. Temperature is expected to increase up to 1.5% over the same period. By the 2070s, simulations from HBV revealed that the peak flows for the Pungwe River Basin will increase by up to 100% and decrease by approximately 57% as projected by the model ensemble. The analyses also show that by 2070 climate change may cause a minimum of 2,784.4 km2 and a maximum of 8,235.6 km2 of flood extension. These results are essential for decision-making on flood hazard mapping and early warning systems, prompting a pathway for sustainable development.
Key factors impacting treatment efficiency in actual copper mineral processing wastewater by ozonation
Authors: Sun Shukai , Lu Miaoqiang , Wei Qihang , Chen Jincheng , Wu Renya , Feng Fei , Wei Linsheng
Published: April 2023

Ozone advanced oxidation has been widely used in water treatment, but little research has been reported on the application of ozone to difficult-to-degrade mineral wastewater. In this paper, the effect of ozonation application in the treatment of copper mineral processing wastewater, which is difficult to be effectively treated by traditional processes due to its complex composition, was investigated. The effects of ozonation time, ozone concentration, temperature and pH on the degradation of organic compounds in the wastewater by ozonation were researched. It was found that the chemical oxygen demand (COD) of the wastewater could be reduced by 83.02% by ozonation under optimal treatment conditions. In addition, the mechanism of ozone degradation of the difficult-to-degrade wastewater was studied, and the reasons for the fluctuating variations of COD and ammonia nitrogen during ozonation treatment were explained.
Tandem high-dose chemotherapy and autologous hematopoietic stem cell transplantation in pediatric patients with high-risk neuroblastoma: single-center experience
Authors: Kulyova S. A. , Abadjeva A. A. , Mikhailova E. A. , Kulyov M. A. , Fedukova Yu. G. , Khabarova R. I.
Published: April 2023

Currently, the use high doses chemotherapy (HDC) supported by autologous peripheral blood stem cells in consolidation is a necessary therapeutic option in patients with high-risk neuroblastoma (NB). Conditioning regimens and schemes of HDC remain the subject of debate. 

In recent years, the evidence base of the advantages of tandem myeloablative procedures in comparison with single-transplantation has been actively accumulated in clinical practice. This article presents our own experience of tandem-transplantation with stem cell rescue in the N.N. Petrov National Medical Research Centre of Oncology (Saint-Petersburg) in four patients with initially stratified high-risk group NB; two of them were NMYC amplified. Tandem consolidation included TC ([T]hiotepa, [C]yclophosphamide) and CEM ([C]arboplatin, [E]toposide, [M]elphalan) regimens. The acceptable toxicity of the tandem-transplantation is proved.
Modern methods of therapy in the development of life-threatening complications in a patient after repeated allogeneic hematopoietic stem cell transplantation: review of the literature and clinical case
Authors: Sergeenko K. A. , Machneva E. B. , Aliev T. Z. , Kostareva I. O. , Valiev T. T. , Kiselevskiy M. V. , Vlasenko R. Ya. , Kirgizov K. I. , Varfolomeeva S. R.
Published: April 2023

There is no doubt that allogeneic hematopoietic stem cell transplantation (allo-HSCT) is one of the most effective treatments for many serious diseases. However, despite significant progress, allo-HSCT is still associated with a high rate of complications and mortality in the posttransplant period due to the toxicity of conditioning regimens, infectious and immune conditions. Acute complications such as endothelial injury, acute and chronic graft-versus-host disease (GVHD) remain the main causes of mortality after allo-HSCT. In our clinical case, we demonstrated an example of the development of such life-threatening complications as transplant-associated thrombotic microangiopathy and GVHD in a patient after repeated allo-HSCT, as well as the successful relief of these complications by modern therapeutic methods, including the introduction of closely related donor mesenchymal stem cells and the complement blocker eculizumab.
Diseño y construcción de bóvedas tabicadas
Authors: Morales Guzmán Carlos César
Published: April 2023

La siguiente investigación se llevó a cabo para demostrar la técnica geométrica y constructiva de las bóvedas tabicadas, con el fin de promover este sistema tecnificado que tiene propiedades de alta resistencia. Esto dependerá de la forma y de la técnica constructiva aplicada. Se tiene como objetivo desarrollar cubiertas escalas que enseñen la viabilidad de las cubiertas para los espacios arquitectónicos, debido a su bajo costo y facilidad de construcción, concluyendo con un resultado de una metodología de diseño que puede generar una variedad de formas y acabados excepcionales, que se le puede otorgar al espacio arquitectónico.
An Overview of Chatbot-Based Mobile Mental Health Apps: Insights From App Description and User Reviews
Authors: Haque M D Romael , Rubya Sabirat
Published: April 2023

Background

Chatbots are an emerging technology that show potential for mental health care apps to enable effective and practical evidence-based therapies. As this technology is still relatively new, little is known about recently developed apps and their characteristics and effectiveness.

Objective

In this study, we aimed to provide an overview of the commercially available popular mental health chatbots and how they are perceived by users.

Methods

We conducted an exploratory observation of 10 apps that offer support and treatment for a variety of mental health concerns with a built-in chatbot feature and qualitatively analyzed 3621 consumer reviews from the Google Play Store and 2624 consumer reviews from the Apple App Store.

Results

We found that although chatbots’ personalized, humanlike interactions were positively received by users, improper responses and assumptions about the personalities of users led to a loss of interest. As chatbots are always accessible and convenient, users can become overly attached to them and prefer them over interacting with friends and family. Furthermore, a chatbot may offer crisis care whenever the user needs it because of its 24/7 availability, but even recently developed chatbots lack the understanding of properly identifying a crisis. Chatbots considered in this study fostered a judgment-free environment and helped users feel more comfortable sharing sensitive information.

Conclusions

Our findings suggest that chatbots have great potential to offer social and psychological support in situations where real-world human interaction, such as connecting to friends or family members or seeking professional support, is not preferred or possible to achieve. However, there are several restrictions and limitations that these chatbots must establish according to the level of service they offer. Too much reliance on technology can pose risks, such as isolation and insufficient assistance during times of crisis. Recommendations for customization and balanced persuasion to inform the design of effective chatbots for mental health support have been outlined based on the insights of our findings.
Pathophysiology of the coagulation system in general heat injury (scientific and literary review)
Authors: Kravets O.V. , Yekhalov V.V. , Sedinkin V.A. , Bagunina O.O.
Published: April 2023

General unintentional overheating of the body (heat stroke) is a severe life-threatening condition that causes thousands of deaths worldwide every year due to climate changes. Coagulation disorders associated with general heat injury are a determining factor in the course and prognosis of the pathological condition. Coagulopathy is a pathophysiological process that is activated as a result of a systemic inflammatory reaction the basis of which is a destabilized external primary protection of the body against hyperthermia and negative changes in the vascular endothelium. Based on the data of foreign authors and their own clinical experience, the authors were able to highlight certain features and patterns of the development of coagulopathies in thermal trauma.
Current challenges of intensive care in children affected by the war in Ukraine
Authors: Filyk O.V.
Published: April 2023

Background. Treatment of children with combat injuries due to the war in Ukraine requires intensive care and high professionalism. The purpose of study was to demonstrate the experience of providing intensive care to children affected by the war in Ukraine and to discuss the implementation of international standards for providing medical aid to such patients at the stages of evacuation from the war zone. Materials and methods. We have examined and provided intensive care to 15 children aged 1 month — 18 years old with combat injuries due to hostilities in Ukraine. Literature search was performed in PubMed databases using the keywords “combat trauma in children, “blast injuries in children”, “intensive care of children with tertiary peritonitis”, “acute and chronic pain”, “acute psychiatric disorders in children”, “sepsis and septic shock in children”, “multiresistant nosocomial infections”. Results. The main clinical problems of people affected by hostilities were: acute and chronic pain, acute psychiatric disorders (psychosis, hallucinatory syndrome, agitation), sepsis and colonization by multiresistant nosocomial pathogens, especially if a patient was previously treated in the intensive care unit for more than 2 weeks (pneumonia, wound infections), gastrointestinal failure syndrome, gastroparesis, tertiary peritonitis, nutrient deficiency, prolonged mechanical ventilation and difficulty weaning from it. All patients received multidisciplinary care. Conclusions. Thus, our experience of treating children requiring intensive care after war injuries indicates that such patients have a combination of many clinical problems already known to clinicians, which are typical for both long-term intensive care patients, and those with severe injuries.
Green synthesis, characterization and antibacterial activity of iron oxide nanoparticles derived fromSolanum nigrum leaf extract
Authors:   Faculty of Science, Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Tamilnadu- 608002, India, Rashmi Sulthana M. , Shenbagam Madhavan Dr. M. ,   Assistant Professor, Faculty of Science, Department of Biochemistry and Biotechnology, Annamalai University, Annamalainagar, Tamilnadu- 608002, India
Published: April 2023

In order to create iron nanoparticles, extract from Solanum nigrum was used. By using UV/Vis absorptionspectroscopy, X-ray diffraction spectroscopy, and SEM examination, the produced iron nanoparticles were identified. Iron oxide nanoparticles exhibit a distinctive absorption peak in the UV/Vis spectrum between 200 and 300 nm. Theaverage particle size of magnetite nanoparticles, as determined by the X-ray diffraction method, was found to be 24.1nm. By using the well diffusion method, it was discovered that the synthetic iron nanoparticles have antibacterial action against harmful bacteria such Staphylococcus aureus, Streptococcus pyogenes, Escherichia coli, and Klebsiellapneumoniae. This biosynthetic method has been discovered to be economical, environmentally benign, and promisingfor use in a variety of fields. Keywords: Iron nanoparticles, Solanum nigrum, antibacterial activity
Evaluation of Antimicrobial-producing Actinomycetes Isolated from Regions in Baghdad City
Authors: Najm Balqees Yahya , Khallel Sarab Hussein , Majeed Hala Mahmmed
Published: April 2023

In this study, we examined 25 actinomycete strains isolated from soil samples collected from different agricultural locations in Baghdad City, Iraq. These isolates were tentatively identified on the basis of their chalky, leathery, waxy, and mucoid colonies. Identifications were confirmed using slide culture techniques and observing the substrate and aerial mycelia and the arrangement of spore chains. Ten of the isolates were established to have antimicrobial-producing activity. To further confirm these isolates as actinomycetes, we performed molecular analyses using 16S rDNA, for which we obtained a characteristic single band of approximately 1500 bp. A selected isolate was studied for its antimicrobial activity against gram-positive and gram-negative bacteria, and we also examined the influence of factors such as carbohydrate sources (glucose, maltose, sucrose, lactose, and starch), and different concentrations of (NH4)2SO4 as a nitrogen source, on antimicrobial production.
Pink Pigmented Facultative Methylotrophs (PPFMs): Potential Bioinoculants for Sustainable Crop Production
Authors: Nysanth N.S. , Rajan S. Anu , Sivapriya S.L. , Anith K.N.
Published: April 2023

Bacteria belonging to the genus Methylobacterium, popularly known as pink pigmented facultative methylotrophic (PPFM) bacteria, are well known for their distinct ability to use single-carbon compounds like methanol, formate and formaldehyde, and also a variety of multi-carbon substrates lacking carbon-carbon bonds. These bacterial groups are ubiquitously distributed, especially in phyllosphere and rhizosphere, and their occurrence have been reported in more than 100 species of plants so far. PPFMs have profound influence on soil fertility, crop growth and yield. The ability for phosphate acquisition, nitrogen fixation, iron chelation and phytohormone production indicate the possibility of developing them as promising biofertilizer candidates. In addition, many of them possess biocontrol activity against several phytopathogens. PPFMs induce several physiological changes in plants, making the plants more resistant to biotic and abiotic stress. They can therefore be promising alternatives to conventional chemical inputs in sustainable agricultural systems.
Tyre Pressure Monitoring System with Compressor
Authors: Purohit Gouthami , Shetty Deepthi , P K Samskruthi , Dsouza Blessinta , K Yajnesh
Published: April 2023

Abstract: Around 15 million two-wheelers are sold annually in India, where one in three homes has a two-wheeler. The country produces 20 million units of two-wheelers annually. Severe underinflation can result in mechanical and thermal stress brought on by overheating, which can very quickly cause the tyre to blow out. Failures of this nature may result in dangers and mishaps that jeopardise not only the rider but also those around him or her. Under-inflated tyres cause tread separation and tyre failure, resulting in 40,000 accidents, 33,000 injuries, and over 700 fatalities each year, according to average country estimates. However, when taking into account India's population, these figures may soar due to a high number of people owning more 2- wheelers, having less time to physically check, and being unable to routinely get their cars inspected at a repair facility. Without the riders' knowledge, the aforementioned issues will occur more frequently. This project focuses on designing and creating a direct tyre pressure monitoring system (TPMS), which uses a pressure sensor to measure air pressure taken straight from the tyre. The rider does not need to get out of his vehicle and manually pump air into his tyres when the TPMS detects a reduced tyre pressure because the TPMS and the compressor unit are working together to supply the air to the tyre. Energy is provided to the gadget either by a dynamo or a backup battery. To ensure consistency and accuracy in reporting the pressure and providing enough air to the tyre, the key components must be calibrated. Although there are numerous challenges and constraints, this prototype is a promising product for use in the real world.
An Overview on Electric Switching Circuit for the Safety of Electrical System
Authors: Dhenge Kirti , Petkar Priyanka B , Kothe Rajat S , Gaidhane Rohan Z
Published: April 2023

Abstract: The regulating and monitoring of circuit breakers using internet of things (IoT) is the topic of this study. Circuit breakers are a crucial component of the power system and play a significant role in the generation and transmission of electricity. When this action needs to be done online, maintaining reliable operation and monitoring of the high voltage circuit breakers is a significant problem. This paper outlines the design of an electrical equipment online monitoring and diagnosis system that collects, transmits, and processes data regarding the equipment under observation. The system is created with an interface on top of which various local and system applications can be recorded. The Microcontroller near the circuit breaker section will continuously communicate all the parameters of the circuit breaker to control room and it will be shown on screen of computer. Additionally, following a C.B trip, it sends a signal to the GSM module so that only registered numbers can get text messages with fault descriptions thanks to GSM.
Detection of Cancer Using Boosting Tech Web App
Authors: Girish Mareedu , Satish Madasu , Hemanth Thota
Published: April 2023

bstract: The early detection and prognosis of a cancer type have turned into a major requirement, as it facilitates successive medical treatment of patients. The machine learning field has shown greater potential in applications such as disease prediction and drug response prediction. Input is obtained in the form of an image for cancer prediction. Output results are acquired instantly in real time. We will be using CNN methodology. The existing systems are simple and effective but are extremely vulnerable to impact. Moreover, state-of-the-art methods work on just one algorithm which makes it less accurate and more time-consuming. We propose an end-end web application that predicts cancer using distinct techniques related to deep learning... The Advantages of the proposed system are that it could be the very first-of-its-kind, cost efficient, and highly accurate application that provides complete and accurate cancer prediction. The proposed application is highly applicable in the classification, and diagnosis of cancer and tumor diseases and is expected to become more important in medical practice shortly
The Relationship Between Job Satisfaction and Work Motivation in IT Industry
Authors: Tiwari Richa , Gupta Vivek , Razeen Mohamed , Aghin Mohamed , Gourisaria Harsh , Agarwal Shivam
Published: April 2023

Abstract: This research paper investigates the relationship between job satisfaction and work motivation. The paper examines existing literature on the topic, outlining various theories and studies that highlight the importance of job satisfaction and work motivation in enhancing employee performance and overall job satisfaction. The paper also explores the various factors that contribute to job satisfaction and work motivation, including job security, organizational culture, and opportunities for career growth. The study was done through online surveys to collect data from a sample of employees in IT industry. The findings suggest a strong positive correlation between job satisfaction and work motivation, highlighting the need for employers to create a conducive work environment that promotes job satisfaction and work motivation. The paper concludes with recommendations for employers on strategies for enhancing job satisfaction and work motivation among their employees. Work motivation and Job satisfaction is a study of a organizational behaviour among the employees. Both these aspects positively influences the employees and their commitment towards the organization . This specific research has been conducted among IT professionals and studied their working culture moreover ,to study the correlation between job satisfaction and job motivation . The data was gathered from more than 100 individuals who are working in IT based organizations located in Bengaluru. The study is motivated by the increasing demand for IT professionals in today's job market, and the need for organizations to understand how to effectively motivate and retain their skilled employees in the industry. The study is a descriptive analysis based out of rationale in existing literature on work motivation and job satisfaction. Primary data collected through a survey of IT professionals and tested the factors and their interdependence for motivation and job satisfaction. The results of the study indicate a positive correlation between work motivation and job satisfaction among IT professionals. The study also identifies several key motivational factors that have significantly impacted employees in job satisfaction, career advancement, work flexibility, and recognition for good performance. The implications of the study for organizations seeking to motivate and retain their IT professionals are discussed, as well as directions for future research in this area
Design Parameters of Automatic Drilling & Tapping Machine
Authors: Vaidya V. B. , Dukhi Akshay , Meshram Chirag , Chaudhray Hemant , Gurve Mayank , Rangari Sahil
Published: April 2023

Abstract: This paper focuses on design of machine which can perform drilling and tapping processes together with the help of automation in order to improves production, reduce time for manufacturing and manufacture economically on a bigger scale. In regular drilling process which is the most common way to put a hole in metal or other materials, for precise hole location, good finish and accurate size automatic drilling machine is required. To cut threads on hole accurately along with the drilling process we using drill cum tapping bit. Tapping operation required to rotate the spindle in both clockwise and counter clockwise direction. So, we have made bevel gear arrangement for reversal of the spindle and also worm and worm gear is used for speed reduction as drilling requires high RPM and tapping requires low RPM to perform the drill and internal threads.
Influence of Positive Psychological Capital on Career Identity of First Year Nursing Students: The Mediating Effect of Self-esteem and Major Satisfaction
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Mi Jung , Kim Moon Ok
Published: April 2023

Objectives This study aimed to explore the mediating effect of self-esteem and major satisfaction on the relationship between positive psychological capital and career identification among first year nursing students.
Methods Data were collected through questionnaires administered to 165 first year nursing students belonging to three universities located in G city and J province, from June 20 to July 4, 2022. The SPSS/23.0 program was used to analyze the data with descriptive statistics, an independent t-test, ANOVA, Pearson’s correlation coefficient, multiple regression, and a Sobel test.
Results The career identification was significantly correlated with positive psychological capital(r=.41, p<.001), Self-esteem(r=.45, p<.001), and major satisfaction(r=.49, p<.001). Self-esteem(z=3.42, p<.001) and major satisfaction(z=5.75, p<.001) mediated the relationship between positive psychological capital and career identification. Among the general characteristics, career identity showed significant differences in age and motivation to apply for the nursing department.
Conclusions Therefore, in order to improve the career identity of first year nursing students, who will become nurses in the future, it is necessary to improve positive psychological capital, build self-esteem, and increase major satisfaction.
Exploring the possibility of educational use of Metaverse: Focusing on Gangwon-do
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee JungPyo
Published: April 2023

Objectives This study was conducted to give policy implications to local educational institutions by exploring the possibility of educational utilization of the Metaverse.
Methods To this end, individual and group interviews were conducted over 13 sessions with teachers and experts who were interested in and competent in Metaverse and Edutech, based on the interview guidelines. Data were coded for newly created concepts and categories within the initial categories using simple valence analysis.
Results The concepts revealed from the collected data were classified into 20 generational categories through a process of comparison and analysis by referring to the initial categories such as metaverse basic recognition, categories available for educational use, and improving foundation for educational use.
Conclusions The results are as follows. first, the concept and type of the current Metaverse are unclear, so it should be recognized as the degree of addition of a new educational method that is limitedly regulated according to educational purposes. Second, in order to use Metaverse educationally, infrastructure needs to be created, and efforts to strengthen teachers' capabilities are requested. Third, it is necessary to prepare strategies for cooperation and linkage with universities and other educational institutions that have met the basic conditions inside and outside in G region.
Middle-aged Korean Students’ English Learning (De)Motivation: A Mixed-Methods Investigation
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Cho MiJin , Kim Tae-Young
Published: April 2023

Objectives This study investigates the second language (L2) learning motivation of middle-aged learners in South Korea on 1) the differences in the L2 learning motivation on L2 learning participation, L2 learning duration, and age as individual factors and 2) the motivators and demotivators of L2 learners with a mixed-methods based on Dörnyei’s (2005, 2009) L2 Motivational Self System.
Methods A 5-point Likert-scale questionnaire on 124 Korean adults (30-60 ages) was conducted, including L2 learners (n=41) and non-learners (n=83) from Seoul, Incheon Metropolitan, and Gyeonggi Province using quantitative methods. Middle-aged five L2 learners and five non-learners were interviewed one-on-one in semi-structured interviews with the explanatory sequential design to investigate L2 learners’ motivators and demotivators of L2 learning qualitatively.
Results In the quantitative method, self-actualization, ideal L2 self, and instrumentality were significantly meaningful for L2 learners. In the qualitative method, L2 learners’ motivators were categorized into 1) instrumentality for self-actualization, and 2) human factors to keep self-esteem in L2 learning experience. Demotivators were classified into 1) inconsiderate comments from family and close people, 2) negative self-attribution, and 3) limited L2 learning environment and social support.
Conclusions The results revealed that the external environment where the L2 learner belongs significantly impacts the L2 Motivational Self System of middle-aged Korean learners. Furthermore, Korean middle-aged learners’ L2 Motivational Self System can be affected by how L2 learners perceive the process of their L2 learning experiences.
The experiences of Laban Movement Analysis (LMA) on Middle-aged Women
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Kim Yu Jung , Choi Hyang Ok , Lim Eun Mi
Published: April 2023

Objectives The purposes of this study were to specifically understand the experiences of middle-aged women who participated in the Laban Movement Analysis (LMA).
Methods The goal of the activity body awareness through movement and physical expression through effort. A total of 10 LMA activity organized and conducted on 4 middle-aged women. Data collection consisted of interviews, observations, researcher's notes, SNS data, videos, and field notes. The interviews were recorded, and the recorded files were transcribed and converted into Korean files, and data analysis was performed in the fourth step of Giorgi's analysis method.
Results As a result of the analysis of the phenomenology research method, it was possible to classify into 9 categories and 27 subcategories in 4 areas of cognitive experience, emotional experience, physical experience, and relational experience. 3 categories and 9 subcategories in the cognitive experience domain, 2 categories and 6 subcategories in the emotional experience domain, 2 categories and 6 subcategories in the somatic experience domain, and 2 categories and 6 subcategories in the relational experience domain. appeared as a category. The three categories of cognitive experience were classified as understanding one's situation, having the will to overcome through a change in thinking, giving meaning to movement and seeing oneself objectively. It was classified as clearly felt in the body, comfortable in the mind and pleasant emotions. The two categories of physical experience were divided into relief of pain and lightening of the heavy body, and the two categories of relationship experience were divided into recognition of one's behavior patterns in relationships and changes in relationships.
Conclusions Based on the results of the study, the implications of middle-aged women's LMA participation experience and the limitations of the study were discussed.
A Longitudinal Analysis of Transitional Relationship between Latent classes of Mother’s Controlling Child-rearing Behavior, Children’s Executive Function Difficulties and Internalizing/Externalizing Problems
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Heo Moonyung , Kim Choonkyung
Published: April 2023

Objectives The purposes of this study were to identify latent classes according to the trajectory of changes in mothers' controlling controlling child-rearing behavior in infancy, executive function difficulties in early school age, and internalizing and externalizing problem behaviors in school age, and to identify the transition patterns between latent classes for finding interventions to prevent and reduce problem behaviors.
Methods 860 mothers and children's data taken from Panel Study on Korean Children's 4th to 12th years were analyzed. For the analyses of this study, SPSS Statistics 23.0 and Mplus 8.7 were used, and latent growth model(LGM), growth mixture model(GMM), sequential-process growth mixture model(SP-GMM) were used as statistical analysis models.
Results First, as a result of GMM, 3 latent classes for the mother's controlling child-rearing behavior, 5 latent classes for the executive function difficulties in children's early school age were found. Also, 4 latent classes for the internalizing problems in the school age of children and 3 latent classes for the externalizing problems in the school age of children were found. Second, result of SP-GMM showed that, there were high probability of transition from the latent class for high level of mother's controlling child-rearing behavior with child in infancy to the latent class for high level of executive function difficulties in children's early school age through the latent classes for high level of internalizing/externalizing problems in children's the school age.
Conclusions In order to prevent internalizing and externalizing problem behaviors in school-age children, it is necessary to reduce and prevent executive function difficulties in early school-age children, and for prevention the executive function difficulties, interventions that reduce the mother's controlling child-rearing behavior in infancy can be helpful. In addition, this study suggests that it is more effective to implement different interventions for each latent class than to do the same intervention for all childten in order to reduce children's executive function difficulties and prevent internalizing and externalizing problem behaviors.
A Study on the Perception of Effectiveness of Education Using Tablet PC and Laptop PC in Middle and High schools
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Kyu-nyo , Park Ki-moon , Hwang Ju-young
Published: April 2023

Objectives This study is aimed at investing and analyzing the actual use of smart device, environmental improvement points, educational effectiveness, and relative suitability for educational use, according to the paradigm shift of distance learning and smart learning due to COVID-19.
Methods This research is for secondary school teachers, and 151 copies were received and analyzed. Statistical analysis calculated descriptive statistics, t-test, and AHP techniques. The conclusion is as follows.
Results First, secondary school teachers have two types, tablet PC and laptop PC, and they answered that they need a lot of smart devices to implement face-to-face classes, online/offline-linked classes and teachers’ work. To this end, they highly demanded improvements such as securing (supporting) one device per student and faculty, building high-speed wireless network infrastructure, providing various educational Apps and high-quality content, and controlling and managing students’ devices (SW). Second, the educational effectiveness of using smart devices was highest in learning motivation and satisfaction (M=4.25), followed by thinking ability (M=4.18) and learning ability (M=4.12). With an average of 4 points, there was no statistically significant difference between school levels, showing a positive perception. Third, with regard to educational utilization of smart devices, as smart learning prolongs, and as the frequency, number of hours, and difficulty increase in student participatory teaching/learning and process-oriented evaluation activities, it was evaluated that a laptop PC that can be used for teachers’ class-related work is more suitable than a tablet PC.
Conclusions In the post-Covid-19 era, it is necessary to prepare a plan to introduce low-end smart devices to secondary schools, and smart device usage training course and relevant education should be strengthened in smart device user training, operation of training centered on utilization cases of co-curriculum, and training for secondary school pre-service teachers.
A Study on How to Design Secondary Music Class Using Digital Media
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Bolim
Published: April 2023

Objectives The purpose of this study is to examine the types of digital media that can be used in the secondary music education field, discuss music class design strategies, and then present a teaching and learning guidance plan to find out how actual classes that apply them can be implemented.
Methods Therefore, the types of digital media that can be effectively used in the secondary music education field were divided into 11 categories and considered, and pedagogical strategies for designing music classes to maintain the essence of the music curriculum while actively using digital media were examined. And lastly, I drew a blueprint for secondary music class design using digital media by presenting a lesson plan for ‘The Nutcracker Suite’ and ‘Daechwita’, which are loaded in secondary textbooks.
Results The results of this study are six in total. Music education using digital arouses learners' interest, provides scaffolding to improve musical literacy, and expands digital literacy. The point is that it is important to integrate the design and the process, to study the textbook faithfully, and to secure the connection to learning. In addition, the points to be considered while expanding the digital element to secondary music classes include preventing learners from losing concentration in online classes, securing the safety of realistic content for learners' health, maintaining the essence of music subjects, and changing the educational field that has been changed by science and technology. It is necessary to think about the role of teachers.
Conclusions It is necessary to think about the role of teachers. If a music class design plan using digital is actively carried out by reading the current trend, music education for secondary students will more actively permeate into their lives, leading to true understanding and enjoyment.
A Study on the Validation of Component Factors of the Assessment Tool for Parental Perception for Respecting their Children’s Rights
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lim Seung-ryol , Choi Jung-hee , Kim Yun-mee , Jeon Bang-sil
Published: April 2023

Objectives The purpose of this study is to statistically verify the components of the assessment tool that can recognize the perception of respect for children's rights of parents and to verify reliability.
Methods To conduct the research, To this end, first, preliminary questions were constructed through literature review and focus group interview (FGI). Second, the content validity was verified by conducting an expert review and a an understanding survey on parents, and questions on parents' perception of respect for children's rights were extracted. Third, Third, In order to verify the assessment tool, exploratory factor analysis, confirmatory factor analysis, and reliability were obtained based on the responses of 531 parents.
Results The final questions of the scale were composed through exploratory factor analysis and confirmatory factor analysis processes. The final model fit index is TLI=.900, CFI=.905, RMSEA=.047. Based on this, a total of 49 items and 5 foctors were composed as the final question of parental perception on respect for children's rights. The right to be protected from danger and guaranteed one's rights, the right to receive safe living and information, the right to create an appropriate growth environment and make self-determination, the right to freedom of expression, and the right to participate in social relations and decision-making in a safe growth environment. The overall reliability was .972, and the reliability of each sub-factor was .791~.922.
Conclusions First, The research results show appropriate reliability and validity of the measure of parents' perception of respect for children's rights. Second, the parental perception scale of respect for children's rights developed in this study is expected to be used as an opportunity to confirm parents' perception of respect for children's rights.
Research Trends on Non-suicidal Self-Injury in Online Space
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Yoo Ha Nul
Published: April 2023

Objectives The purposes of this study is to analyze domestic and foreign research trends, achievements, and limitations on non-suicidal self-injury (NSSI) in the online space, and to seek the therapeutic intervention methods and the direction of future NSSI research.
Methods First, a search was conducted with the keywords ‘non-suicide self-injury’ in the academic portal sites RISS, ScienceOn, ScienceDirect, and Google SCHOLAR. Secondary search was conducted within the results with the keywords ‘internet’, ‘online’, and ‘social media’. Based on the search results, 22 papers were selected through a review process to exclude researcher bias, excluding papers that did not meet the purpose of the study. Papers classified in terms of research trends by country, characteristics of research subjects, and research methodologies, and the research results were classified into protective factors, risk factors, and treatment and prevention intervention methods by referring to the analysis framework of previous studies.
Results Research on non-suicide self-harm in the online space was the most conducted in Canada, and the subject of the study was NSSI-related contents. For the methods, there were 7 quantitative studies and 15 qualitative studies. As for the research topic, NSSI related activities in online space were the most common. Risk factors in online NSSI-related studies were summarized as validation, acquisition of information related to non-suicidal self-injury, satisfaction of interest, negative effects of online communication, effects of homogeneous groups, and trigger functions. And the protective factors were relief of non-suicidal self-injury impulses, cessation of behavior, use as a tool for recovery, acquisition of emotional support, promotion of hope for recovery, window for requesting help, and acquisition of information for helping others. As for the treatment and prevention intervention, the necessity of understanding and utilizing the specificity of the online space in the counseling and prevention education scene and efforts at the online platform were mentioned.
Conclusions Based on the research results, therapeutic intervention and prevention methods for NSSI activities in online space were proposed, and direction for follow-up studies were suggested.
Effect of learning self-efficacy of Chinese calligraphy students on innovative behavior
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Jaewoo , Xu Haoran , Xie Guoquan
Published: April 2023

Objectives This study attempted to investigate the effect of learning self-efficacy on innovative behavior in Chinese calligraphy students.
Methods For the study, a survey was conducted on 213 students for a total of six weeks from the end of October to mid-December 2022 with college students majoring in 4-year calligraphy in A City, Hanam Province, China. To verify the research hypothesis, frequency analysis, exploratory factor analysis, reliability analysis, and correlation analysis were conducted using SPSS Statistics 22. And independent sample t-test and one-way ANOVA were conducted to find out the differences in variables according to general characteristics, and regression analysis was conducted to verify hypotheses through the concept of measurement.
Results TAs a result of the old study, first, it was found that there was a significant difference in the gender of college students majoring in calligraphy. Second, it was found that learning self-efficacy and difficulty preference had a positive (+) effect on creative thinking ability. Third, it was found that learning self-efficacy had a positive (+) effect on empathy ability. Fourth, it was found that learning self-efficacy and difficulty preference had a positive (+) effect on adaptation efforts. Therefore, it was found that learning self-efficacy had a partial effect on innovation behavior.
Conclusions TSince learning self-efficacy and innovation behavior perceived by Chinese calligraphy college students have a partial influence, it suggests that various educational support systems should be developed in universities that can improve learning self-efficacy and innovation behavior.
The Effects of PBL Based Early childhood Safety Education class on Pre-service Early Childhood Teacher's Self-efficiency, Leaning Attitudes and Major commitment
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Yim Yeun-ja , Kim Doolee
Published: April 2023

Objectives This study aimed to investigate the effect of preservice early childhood teachers on cooperative self- efficacy, learning attitude, and major commitment before and after early childhood safety education course applying problem-based learning methods.
Methods To examine this purpose, the problem-based learning design was applied to the early childhood safety education course in the 1st semester of 2022. We examined the differences in cooperative self-efficiency, learning attitudes and major commitment at the beginning and the end of the course were examined for 20 students. The collected data were analyzed by paired t-test with SPSS 24.0 program.
Results The results of this study preservice early childhood teacher cooperative self-efficiency(t=-4.832, p<.001), learning attitudes(t=-4.445 p<.001), major commitment(t=-4.338 p<.001) after application of problem-based learning safety education in early childhood class showed a significant effect. In other words, it could be inferred that the early childhood safety education course itself, which applied problem-based learning (PBL), was a direct factor in improving the cooperative self-efficacy, learning attitude, and major commitment of preservice early childhood education teachers.
Conclusions Therefore, it suggests that the problem-based learning in early childhood safety education is the meaningful teaching method to improve the cooperative self-efficiency, learning attitudes and major commitment of preservice early childhood teachers.
A Study on Middle-aged Office Workers' Perception of Social Participation after Retirement: Focusing on the Q Methodology
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lim Yeonje , Kim Yucheon
Published: April 2023

Objectives This study attempted to examine the subjectivity of social participation after retirement as perceived by middle-aged office workers using the Q methodology.
Methods The Q research methodology was used to study individual subjective perception, and for this purpose, a total of 215 Q groups were formed through literature research review and in-depth interviews to collect Q groups. Finally, 40 Q samples were selected, and Q samples were classified for a total of 31 P samples.
Results As a result of data analysis using the QUANL program, recognition of social participation is as follows. Type 1 is ‘Social Contribution Pursuing Type’, Type 2 is ‘Affluent Life Pursuit Type’, Type 3 is ‘Economic Security Pursuing Type’, Type 4 is ‘Life Value Pursuing Type’. It was identified and classified into relational, active, economic, and value dimensions.
Conclusions This study can be said to have highlighted the meaning of social participation by examining various types of perceptions about social participation by middle-aged office workers after retirement. The results of this study are expected to contribute to improving the quality of life of middle-aged office workers after retirement.