bluuebunny/crossref_metadata_2025 huggingface dataset:
THE ROLE OF PEOPLE'S BUSINESS CREDIT (KUR) IN THE DEVELOPMENT OF MICRO, SMALL AND MEDIUM ENTERPRISES (MSMEs), (CASE STUDY ON CURRENT DRINKING MSMES IN THE SOUTH JAKARTA REGION)
Authors: Khafifah Aura , Sebayang Karuniana Dianta , Mukhtar Saparuddin
Published: October 2024

Micro, Small and Medium Enterprises (MSMEs) are an important part of the economy of a country or a region, Indonesia is no exception. Business in the beverage sector does not always complement the food business. The place or location of this research is the contemporary beverage MSMEs in the South Jakarta area. The research was carried out for two months starting from February 2022 to March 2022 which was carried out in stages. In compiling the report, it was concluded that the financing of KUR funds from BRI for the contemporary beverage MSMEs in the South Jakarta area was indeed very effective. The current drink sellers admitted that after getting KUR funds from BRI, their business grew, starting from the turnover they got to the required infrastructure. This is because the financing of KUR funds from BRI does not only provide assistance in the form of funds but also monitors the development of each of these MSME businesses, so that MSME entrepreneurs feel very helped. The role of KUR financing in the development of contemporary beverage MSMEs in the South Jakarta area with this financing can increase business productivity, especially for MSME businesses in Tebet, South Jakarta. This shows that KUR funds provided by BRI can have a positive effect on the development of MSMEs, this can be seen from the initial profits and profits after receiving KUR funds always increase so that MSME entrepreneurs feel very helped. The role of KUR financing in the development of contemporary beverage MSMEs in the South Jakarta area with this financing can increase business productivity, especially for MSME businesses in Tebet, South Jakarta. This shows that KUR funds provided by BRI can have a positive effect on the development of MSMEs, this can be seen from the initial profits and profits after receiving KUR funds always increase so that MSME entrepreneurs feel very helped. The role of KUR financing in the development of contemporary beverage MSMEs in the South Jakarta area with this financing can increase business
THE INFLUENCE OF TEACHERS' SKILLS USING ICT AND TEACHER'S TEACHING STYLE ON STUDENTS' LEARNING OUTCOMES OF SMKN 46 JAKARTA USING BLENDED LEARNING
Authors: Ardika Dzikrika Bunga
Published: October 2024

This study aims to determine the effect of teacher skills in using ICT and teacher teaching styles on student learning outcomes at SMKN 46 Jakarta. The results of this study are: (1) There is a significant positive effect between teachers' skills in using ICT on learning outcomes indicated by the value of  t_count 2,846 > t_table 1,98397; (2) There is a significant positive effect between the teacher's teaching style on learning outcomes as indicated by the value of t_count 2,983 > t_table 1,98397; (3) There is a significant positive effect between the skills of teachers in using ICT and the teaching style of teachers on learning outcomes as indicated by the value of nilai f_count 42,2 > f_table 3,09. The multiple correlation coefficient is 0.677 and the coefficient of determination is 0.447 or 58.7%, the variable teacher skills in using ICT and the teacher's teaching style affect student learning outcomes simultaneously and the rest is influenced by other factors studied
THE INFLUENCE OF ENTREPRENEURSHIP KNOWLEDGE, SELF-EFFICIENCY AND FAMILY ENVIRONMENT ON INTEREST IN ENTREPRENEURSHIP, STUDENTS OF THE FACULTY OF SOCIAL SCIENCES, JAKARTA STATE UNIVERSITY
Authors: Mardta Rendy , Usman Osly , Adha Maulana Amirul
Published: October 2024

This study aims to: 1) determine the effect of entrepreneurial knowledge on entrepreneurial interest; (2) regarding the effect of self-efficacy on the interest in entrepreneurship; (3) the family environment on the interest in entrepreneurship and (4) the influence of entrepreneurial knowledge, self-efficacy and the family environment on the interest in entrepreneurship. The population in this study were 207 students of the Faculty of Social Sciences, Jakarta State University, class of 2017 and 2018. In this research instrument, researchers used quantitative methods, as many as 136 respondents. data collection using a questionnaire. Data is processed using SPSS. The results of the research instrument show that entrepreneurial knowledge, self-efficacy and family environment have a significant effect on interest in entrepreneurship.
ANALYSIS OF FACTORS AFFECTING THE APPROVAL OF MICRO, SMALL AND MEDIUM ENTERPRISES CREDIT APPLICATIONS AT PEER TO PEER LENDING FINANCING INSTITUTIONS DURING THE COVID-19 PERIOD
Authors: Savitri Aziza , Nikensari Sri Indah , Suparno
Published: October 2024

MSMEs are one of the boosters of the Indonesian economy because they are considered to have a large contribution to economic growth. However, since the emergence of the COVID-19 virus, of course, it has an impact on MSMEs, in 2020 the economic growth figure shows a figure of minus 5.3 percent and there are 37,000 MSMEs affected by COVID-19, so the obstacle faced by MSMEs is the need for capital to rise in the midst of the COVID-19 pandemic. The purpose of this study is to find out what factors influence the approval of MSMEcredit applications to peer to peer lending institutions during the COVID-19 period. The method used is probit regression analysis with the IBM SPSS Statistics 25 application. The independent variables used in the study were the amount of loan, length of business andcredit period.The results of this study found that the loan amount and credit period have a negative and insignificant influence on the approval of credit applications, while the length of business has a positive and significant influence on the approval of credit applications.
THE INFLUENCE OF SOCIAL SUPPORT AND ACADEMIC SELF-EFFICACY ON ACADEMIC ADJUSTMENT OF CLASS X BUSINESS MANAGEMENT STUDENT AT SMKN 48 JAKARTA
Authors: Siti Nikmaturofiqoh  , Yohana Corry , Fidhyallah Nadya Fadillah
Published: October 2024

The purpose of this study was to see how social support and academic self-efficacy influence the academic adjustment of students in class X Business Management (SMKN 48 Jakarta). The research method used is a survey method with a quantitative approach. Students from class X Business Management SMKN 48 Jakarta served as the population in this study, with a sample size of 120 students. The data analysis technique used was multiple linear regression analysis using the IBM SPSS version 25 application. The first test performed was the validity and reliability test of the instrument, with the results of the validity test of p-value 0.000 <0.05 and the results of the reliability test being a Cronbach's alpha value of 0.902 . The second test is the classic assumption test; all the data in this study pass the classic assumption test. The next test, namely multiple linear regression analysis, obtained the equation Y = 14.456 + 0.226 X1 + 0.237 X2. The next test, namely the hypothesis test with the t test, obtained a significance value of 0.000 <0.05 and the f test had a significance value of 0.000 <0.05. The result of this research is that all hypotheses can be accepted.
THE INFLUENCE OF TECHNOLOGY USE, LEARNING INDEPENDENCE, AND STUDENT ACTIVITY ON ECONOMIC LEARNING OUTCOMES IN THE COVID-19 PANDEMIC TIME AT SMA NEGERI 9 BOGOR
Authors: Fira Shafira , Wibowo Agus , Pratama Aditya
Published: October 2024

This study aims to determine the effect of the use of technology, independent learning, and the activeness of students on learning outcomes both partially and simultaneously. In particular, this study uses a quantitative research method with a survey method using a questionnaire. The data analysis technique used in this study is multiple regression analysis. The research sample was 179 students, Based on the results of the study, the use of technology, independent learning, and student activity have an influence on learning outcomes. In the t-test the use of technology in learning partially has a positive and significant effect on the economics learning outcomes of class XI IPS students at SMA Negeri 9 Bogor with a tcount of 8.349 . greater than t table which is equal to 1.973 (tcount > ttable ), learning independence in learning partially has a positive and significant effect on the economics learning outcomes of class XI IPS students at SMA Negeri 9 Bogor with a tcount of 7.696. is greater than ttable which is equal to 1.973 (tcount > ttable ), and student activity in learning partially has a positive and significant effect on the economics learning outcomes of class XI IPS students at SMA Negeri 9 Bogor by having tcount 6.647. greater than t table which is equal to 1.973 (tcount > ttable ).
FACTORS INFLUENCING THE PERFORMANCE OF VOCATIONAL HIGH SCHOOL TEACHERS IN BEKASI
Authors: Astria Tita , Hidayat Nurdin , Wolor Christian Wiradendi
Published: October 2024

Tujuan dari penelitian ini adalah untuk menganalisis faktor-faktor yang memengaruhi kinerja guru sekolah menengah kejuruan di Bekasi. Teknik pengambilan sampel yang digunakan adalah purposive sampling. Metode penelitian yang digunakan adalah metode survey dengan pendekatan kuantitatif. Sampel dalam penelitian ini adalah guru sekolah menengah kejuruan di Bekasi yang memiliki masa kerja lebih dari 2 tahun. Total sampel yang digunakan adalah 202 responden. Dalam mengelolah dan menganalisis data menggunakan SPSS dan Structural  Equation Model (SEM) AMOS. Hasil penelitian ini menunjukkan, (1) Tidak ada pengaruh positif dan signifikan antara motivasi terhadap kinerja guru, (2) Terdapat pengaruh positif dan signifikan antara motivasi terhadap kepuasan kerja, (3) Terdapat pengaruh positif dan signifikan antara kecerdasan emosional terhadap kepuasan kerja, (4) Tidak ada pengaruh positif dan signifikan antara kecerdasan emosioanal terhadap kinerja guru, (5) Terdapat pengaruh positif dan signifikan antara kepuasan kerja terhadap kinerja guru, (6) Terdapat pengaruh positif dan signifikan antara motivasi terhadap kinerja guru melalui kepuasan kerja, (7) Tidak ada pengaruh positif dan signifikan antara kecerdasan emosioanal terhadap kinerja guru melalui kepuasan kerja.
THE INFLUENCE OF PRACTICE FIELD EXPERIENCE (PPL) AND INTEREST IN BECOMING A TEACHER ON TEACHER READINESS IN STUDENTS OF MUHAMMADIYAH UNIVERSITY PROF. Dr. HAMKA
Authors: Aryani Yenni , Purwana Dedi , Marsofiyati
Published: October 2024

This study aims to determine the effect of Field Experience Practice (PPL) and interest in becoming a teacher on readiness to become a teacher for students of the 2017 English Education Study Program, Muhammadiyah University Prof. Dr. Hamka. This research was conducted for 4 months starting from September 2021 to December 2021. The method used in this research is a survey method. The respondent selection technique used Proportional Stratified Random Sampling so that a sample of 147 respondents was obtained from students of the 2017 English Education Study Program, Universitas Muhammadiyah Prof. Dr. Hamka. Data collection was carried out through distributing questionnaires using a Likert scale and also using secondary data in the form of student PPL results. Based on the results of the research conducted, it was found that Field Experience Practice (PPL) had a positive and significant effect on Readiness to Become a Teacher. Interest in becoming a teacher has a positive and significant effect on readiness to become a teacher. In accordance with the research hypothesis.
THE INFLUENCE OF SELF EFFICACY AND SOFT SKILLS ON WORK READINESS IN STUDENTS OF THE FACULTY OF ECONOMICS, UNIVERSITAS NEGERI JAKARTA
Authors: Dila Syifa Farah , Wolor Christian Wiradendi , Adha Maulana Amirul
Published: October 2024

Readiness to work is the overall condition of the individual which includes physical mental maturity and experience as well as the willingness and ability to carry out a job or activity. Readiness can be influenced by several factors, namely internal factors and external factors. This research was conducted to determine the effect of self efficacy and soft skills on work readiness in students of the Faculty of Economics, Universitas Negeri Jakarta 2019 by using a quantitative approach and survey methods. The sample in this study amounted to 139 students who were taken using a purposive sampling technique and calculated using the slovin formula. The instrument used was a Likert scale and data analysis using SEM PLS 4. The results showed that the self-efficacy construct had a t-statistic value of 4.135 greater than 1.96, and a p-value of 0.000 less than 0.05. The soft skill construct has a 1-statistic value of 0.2776 which is greater than 1.96, and a p-value of 0.049 which is less than 0.05. The F-Square value of the self efficacy variable to the hit readiness variable is 0.378, starting from the F-Square of saciable soft skills to diving work readiness 2.31. This shows that self-efficacy and soft skills have a positive influence on the work readiness of Economics students at Universitas Negeri Jakarta 2019.
EXPLORING SERVICE QUALITY, DIGITAL MARKETING, CONSUMER SATISFACTION AND LOYALTY: A DESCRIPTIVE STUDY
Authors: Paquita Shiva Silvia , Usman Osly , Adha Maulana Amirul , Ansar Rudy
Published: October 2024

The purpose of this study is to determine the level of service quality, digital marketing, consumer satisfaction, and consumer loyalty Shoppe in Jakarta. The research method used in this study is a survey method with the distribution of questionnaires through google forms. The population in this study is consumers who have done online shopping at the Shopee marketplace who live in Jakarta and for the research sample taken as many as 166 respondents, this number was obtained from calculations based on the recommendations of Hair et al. The results of the descriptive analysis of this study showed that the service quality variable had the largest mean value with a score of 3.970 and the lowest value with a score of 3.367. Furthermore, the digital marketing variable has the largest mean value with a score of 3,777 and the lowest value with a score of 3,488. Furthermore, the consumer satisfaction variable has the largest mean value with a score of 3.711 and the lowest value with a score of 3.506. And the consumer loyalty variable has the largest mean value with a score of 3.657 and the lowest value with a score of 3.313.
CREATIVITY AND RISK-TAKING PROPENSITY FACTORS IN ENCOURAGING ENTREPRENEURIAL INTENTIONS AMONG HIGH SCHOOL STUDENTS
Authors: Hidayah Shofiyatul , Wibowo Agus , Mukhtar Saparuddin , Kundriyah Kundriyah
Published: October 2024

The low level of entrepreneurship in Indonesia is caused by a lack of skills among aspiring entrepreneurs. So, concrete steps are needed to improve entrepreneurial skills in the community. One of them is through education, by instilling entrepreneurial intentions since sitting in school. This study was conducted to determine the influence between creativity and risk-taking tendencies on entrepreneurial intentions of SMAN 68 Jakarta students in the Pancasila Student Profile Strengthening Project (P5) entrepreneurship program. The research method used is quantitative research method. The population used in this study were all X-grade students consisting of 275 students with a sample size of 164 students. Research hypothesis testing was carried out using the Structural Equation Model (SEM) approach based on Partial Least Square (PLS) version 4.0.2. The results showed that creativity has a positive and significant influence on entrepreneurial intention, risk-taking tendency has a positive and significant influence on entrepreneurial intention, creativity has a positive and significant influence on risk-taking tendency, and risk-taking tendency has a mediating role in the relationship of creativity to entrepreneurial intention.  Researchers provide an understanding of the factors that can increase entrepreneurial intentions, namely creativity and risk-taking tendencies, in P5 entrepreneurship activities in schools.
ANALYSIS OF THE FACTORS AFFECTING THE PERFORMANCE OF INDONESIAN EQUITY FUNDS IN 2019-2022
Authors: Setiawan Dito , Mukhtar Saparuddin , Zahra Siti Fatimah
Published: October 2024

The fund manager's approach to managing mutual funds has an impact on the performance of the funds. The performance of mutual funds, which rise annually, is a good indicator of fund managers' ability to manage them effectively. The goal of this research is to ascertain how fund cash flow, market timing ability, and stock selection ability affect equity fund performance from 2019 to 2022. Applying the technique of purposive sampling, this research sample consists of 17 equity funds products chosen based on the research criteria. The research makes use of the prospectus of equity mutual fund products from 2019 to 2022, interest rates, Composite Stock Price Index (IHSG), and Net Asset Value (NAV) of mutual funds every month. The study used panel data regression method with Common Effect Model (CEM) approach. The results of the study show that stock selection ability and fund cash flow have a positive and significant effect on the performance of equity mutual funds. Meanwhile, market timing ability has a positive but insignificant effect on the equity funds performance for the 2019-2022 period.
THE EFFECT OF LOCAL GOVERNMENT EXPENDITURE ON DEVELOPMENT INEQUALITY WITHIN AND OUTSIDE JAVA ISLAND
Authors: Margaretta  , Iranto Dicky , Nikensari Sri Indah
Published: October 2024

This study aims to determine the effect of local government spending on infrastructure, education and health sectors on development inequality in Java and the Eastern Region. This research uses a quantitative approach, using panel data consisting of 18 provinces over a period of five years (2017-2021). The data analysis involves three main steps: (1) testing the model using the Chow test, Hausman test, and Lagrange multiplier test; (2) conducting classical assumption tests including normality, multicollinearity, and heteroscedasticity tests; and (3) performing hypothesis testing using t-test, F-test, and determination coefficient (R²) test. Research results shows that spending in the infrastructure sector has a negative impact on development gaps. Every 1% increase in local government spending on infrastructure can reduce the development gap by 1%. On the other hand, spending in the education sector has a positive and significant impact, where a 1% increase in spending will increase the development gap by 1%. Expenditures in the health sector do not have a significant impact on the development gap between Java Island and the Eastern Region.
DEVELOPMENT OF GOOGLE SITES-BASED LEARNING MEDIA ON RETAIL BUSINESS MANAGEMENT MATERIAL
Authors: Anggraini Wati , Faslah Roni , Fidhyallah Nadya Fadillah
Published: October 2024

This research aims to find out the feasibility of developing Google Sites-based learning media in class XI retail business management material. This research was conducted using the research and development (R&D) method at Tamansiswa 1 Vocational High School Jakarta. The data analysis technique used is expert validation testing. Validation tests will be enforced by media experts, material experts and teachers. The media expert validation test results in stage I got a percentage of 94%, and in stage II got a percentage of 96% which can be categorized as very valid and very feasible. The material expert validation test in stage I got a percentage of 60%, and in stage II got a percentage of 82% which can be categorized as valid and feasible. The validation test by teachers obtained a percentage of 92% which can be categorized as very valid and very feasible. In small group trials conducted on 10 students, the results showed a percentage of 84.4% which was categorized as valid and feasible. The results of this research and development show that Google Sites-based learning media is declared feasible and can be used in the learning process.
VIRTUAL REALITY DEVELOPMENT IN AN EFFORT TO IMPROVE THE READINESS OF OFFICE ADMINISTRATION EDUCATION STUDENTS TO FACE TEACHING SKILLS PRACTICE
Authors: Sari Wulan Kartika , Usman Osly , Febriantina Susan
Published: October 2024

This research was conducted with the aim of determining the level of feasibility and practicality of Virtual Reality learning media in teaching and learning strategy courses on microteaching material. This research uses the Research and Development (RnD) method with the ADDIE (Analysis, Design, Implementation, Evaluation) development model. The research subjects consisted of 1 material expert and 1 media expert as well as 10 6th semester students of the Office Administration Education Study Program, Faculty of Economics, Universitas Negeri Jakarta. The data collection technique uses a questionnaire with a 1-5 Likert scale. Data analysis techniques were carried out using expert validation tests and practicality tests. Based on validation tests carried out by 1 material expert and 1 media expert, the average percentage result was 94.5%, which means the category was very feasible. Based on the results of practicality tests for small and large groups, an average percentage score of 95% was obtained in the very practical category. Therefore, the results of the research and development that have been carried out are declared very feasible and very practical and can be used in learning activities.
DEVELOPMENT OF WORDWALL LEARNING EVALUATION ON CONSUMER BEHAVIOR MATERIAL
Authors: Murdianningsih Asri Rahayu , Faslah Roni , Fidhyallah Nadya Fadillah
Published: October 2024

This study aims to assess the validity of the development of wordwall-based learning evaluation in business communication subjects with consumer behavior material for class X retail business at Vocational High School Tamansiswa 1 Jakarta. This study uses Research and Development (RnD) using the ADDIE development model. Thus, the analysis, design, development, and implementation stages are the first stages carried out in the research and development of this learning evaluation. The results of this study are the results of the media expert validation analysis which gives a percentage of 84% in the very valid group. In addition, 80% of the results in the valid category come from the material expert validation analysis. Furthermore, based on the validation results by the teacher, the figure was 80%, which is also in the valid category. The results of the small group trial by students showed a figure of 82% which falls into the very valid category. This percentage shows the validity and feasibility of using wordwall-based learning evaluation as a learning assessment in the classroom.
Analisis Butir Situasional Judgement Test Kompetensi Kepemimpinan Karyawan BUMN dengan Rasch Model
Authors: Kusuma Ni Ketut Laksmi , Hakim Mohammad Abdul
Published: October 2024

Asesmen kompetensi SDM memiliki peran krusial dalam organisasi, khusunya pada PT X, sebuah BUMN di sektor transportasi Indonesia. PT X mengembangkan tes kompetensi kepemimpinan melalui Situational Judgement Test (SJT), diharapkan dapat secara objektif mengukur kompetensi dengan skenario pekerjaan realistis. Penelitian ini melibatkan 2.368 karyawan PT X dari kelompok jabatan level 1. Analisis butir dilakukan pada 48 aitem yang mengukur 7 kompetensi kepemimpinan pada level kompetensi 1, dengan tujuan meningkatkan mutu tes melalui perbaikan atau penghapusan butir yang tidak sesuai. Ditemukan bahwa sebanyak 15 aitem dijawab >50% responden, sedangkan 33 aitem dijawab benar oleh <50% responden. Meskipun sebagian besar aitem memiliki tingkat kesukaran yang baik (-2 ≥ b ≥ +2), beberapa aitem seperti DLE 1.3.3, DLE 1.2.2, dan DEX 1.2.2 yang memiliki tingkat kesukaran kurang baik. Pengukuran paling akurat ditemukan pada beberapa aitem, seperti SOR 1.2.1, SOR 1.3.1, SOR 1.1.1, dan SOR 1.1.2, sementara DEX 1.2.2 menunjukkan pengukuran yang kurang akurat. Evaluasi kecocokan (Infit & Outfit) pada seluruh aitem menunjukkan nilai yang sesuai (0,5 – 1,5) dengan kompetensi yang diukur, menegaskan keandalan tes. Wright Map menunjukkan kompetensi DEX mampu mengukur keseluruhan abilitas; kompetensi DLE mampu memotret abilitas responden rata-rata hingga tinggi; kompetensi Strategic Orientation (SOR), Developing Organizational Capabilities (DOC), dan Leading Change (LCH) memotret abilitas rata-rata; kompetensi Global Business Savvy (GBS) dan Managing Diversity (MDI) memotret abilitas pada tingkat rata-rata dan di bawah rata-rata. Penelitian ini menyimpulkan bahwa tes SJT ini memiliki kualitas butir yang baik dan dapat diandalkan untuk asesmen kompetensi PT X secara berkelanjuta.
Peran Regulasi Emosi dalam Perilaku Mencari Bantuan pada Korban Kekerasan dalam Pacaran
Authors: Sy Vinna Ramadhany , Medellu Gita Irianda Rizkyani , Kusumawardhani Sri Juwita
Published: October 2024

The stage of early adulthood in human development is to establish romantic relationships with the opposite sex. Therefore, having a romantic relationship is important for individuals at that age. Out of these four types of violence, emotional violence is the one that cannot be seen in real life, and even the victims don't really feel that what they are experiencing is a form of emotional violence. In emotional violence, the perpetrator will play a role by manipulating the victim, so that the victim does not even realize what he is experiencing, but gradually the impact of the violence is felt in everyday life. Meanwhile, the position of victims who are manipulated and unaware of the violence they experience, makes them feel that their perception of the situation they are experiencing is unrealistic, victims usually do not recognize or recognize emotional violence, and they develop coping mechanisms such as denial and minimize the violence they experience. With this condition it is difficult for victims to seek help for what they are experiencing. There are predictors that can influence the behavior of seeking help, including the regulation of the victim's emotions, the intensity of the search for help itself, and so on. In order to seek help from a manipulative, emotionally abusive state, the victim must have trust in others. Conditions that are astonishing and difficult to understand and believe are like victims of natural emotional abuse, forcing them to only want to open up to people they truly trust.
Evaluation of the Competency and Skills Needs for Seaplane Maintenance in Pilot Education at the Indonesian Pilot Academy Banyuwangi
Authors: Prayitno Hadi , Sunardi  , Mubarok Ahmad , Setyo Demmy , Hariadi Setyo
Published: October 2024

This research assesses the competency and skill requirements for Seaplane aircraft maintenance in the pilot education program at the Indonesian Pilot Academy Banyuwangi. Utilizing qualitative methods, including in-depth interviews and direct observation, the study involves students and teachers in the pilot education program. Analysis reveals crucial competencies for students, encompassing a profound understanding of Seaplane aircraft systems, adept problem-solving during operations, and the capacity for quick and precise decision-making. Special skills, such as adaptability to complex working conditions and meticulousness in maintenance procedures, are also deemed essential. The research identifies alignment between the academy's curriculum and Seaplane aircraft maintenance needs, yet highlights specific areas requiring enhancement. The study recommends strengthening the curriculum and teaching methods to better address competency and skill needs. Implementing these recommendations is anticipated to elevate the quality of graduates, ensuring they are well-equipped to meet the challenges of Seaplane aircraft maintenance in the aviation industry.
The Effect of a Flipped Classroom Didactic Curriculum on Orthopaedic In-Training Examination Scores for a Resident Cohort
Authors: Cherney Steven M. , Barnes C. Lowry , Blasier R. Dale , Bracey John W. , Montgomery Corey O.
Published: October 2024

Introduction:

There is little research on the efficacy of flipped classroom (FC) models of learning in formal orthopaedic didactic curricula. The primary aim of this study was to compare resident Orthopaedic In-Training Examination (OITE) scores before and after implementation of an FC curriculum at a single academic institution.

Methods:

An FC didactic model consisting of 3 hour-long weekly sessions focusing on highly tested topics was implemented for the start of the 2021 to 2022 academic year. The curriculum was based on the Orthobullets PASS curriculum. The OITE scores were measured 3 years before and 3 years after the implementation of the novel curriculum.

Results:

Mean in-training scores as a program against national peers increased from the 29th percentile precurriculum implementation to 75th percentile postcurriculum implementation (p < 0.001).

Conclusion:

At a single academic institution, average OITE scores increased significantly after implementation of an FC model. Consideration should be given to changing traditional lecture-based curricula to models that more effectively engage resident learners.

Level of Evidence:

Level III: Retrospective Cohort Study. See Instructions for Authors for a complete description of levels of evidence.
Dinuclear titanium on TS-1 for propylene epoxidation at alkaline condition
Authors: Kwak Ja Hun , Kim Kwang Hyun , Kim Taehyeon , Kim Haneul , Lim June Sung , Ko Myohwa , Jin Wonjoo , Seo Kwanyong , Joo Sang Hoon , Cho Sung June , Jang Ji-Wook
Published: October 2024

Propylene epoxidation is an important industrial process, but current techniques have shown adverse environmental impacts.1-3 Recently, the eco-friendly photo-electro-heterogeneous catalytic production of propylene oxide (PO) has been reported using in situ generated H2O2 and a zeolite catalyst (titanium silicalite-1, TS-1).4 However, the PO production rate was too low due to the low solar H2O2 production rate. In this work, we recorded high solar H2O2 production rate required for the practical PO production for first time. However, TS-1 exhibits low activity in the presence of alkali metal ions under alkaline condition, which are crucial for efficient solar H2O2 production. Herein, we hydrothermally synthesize a TS-1 catalyst containing dinuclear titanium sites and Ti–O–Ti bonds and show that it efficiently promotes propylene epoxidation under alkaline conditions (pH 11). The results of density functional theory (DFT) calculations and instrumental analyses reveal that the dinuclear titanium sites are active for propylene epoxidation and synergistically interact with alkali metals ions to prevent hydrolysis of PO to propylene glycol. Thus, our work demonstrates the superiority of the developed catalytic system over its predecessors, paving the way for the use of TS-1 in other partial oxidation reactions and the development of novel environmentally benign chemical processes.
The Identification of Guessing Patterns in Progress Testing as a Machine Learning Classification Problem
Authors: Atanet Iván Roselló , Sehy Victoria , Sieg Miriam , März Maren
Published: October 2024

The detection of guessing patterns in low-stakes progress testing could naturally be understood as a statistical classification problem where test takers are assigned to groups according to probabilities given by a machine learning model. However, the relevant literature on this topic does not include many examples where this approach is discussed; to date, the strategies applied to tackle this problem have been mostly based either on rapid response counting or the detection of unusual answer patterns.
On the basis of 14,897 participations in the Progress Test Medizin test – which takes place twice a year since 1999 in selected medical schools of Germany, Austria and Switzerland - we formulated the identification of guessing patterns as a binary classification problem. Next, we compared the performance of a logistic regression algorithm in this setup to that of the nonparametric person-fit indices included in R´s PerFit package. Finally, we determined probability thresholds based on the values of the logistic regression functions obtained from the algorithm.
The logistic regression algorithm included in Python´s Scikit-Learn reached ROC-AUC scores of 0.886 to 0.903 depending on the dataset, while the 11 person-fit indices analysed returned ROC-AUC scores of 0.548 to 0.761.
Datasets based on aggregate scores yielded better results than those were the sets of answers to every item were considered as individual features. The best results were reached with a feature set containing only two parameters (self-monitoring accuracy and number of answered questions); considering the amount of time spent on the test did not lead to any performance improvement.
Based on the values of the logistic regression function generated by the applied algorithm, it is possible to establish thresholds above which there is at least a 90% chance of having guessed most answers.
In this setting, logistic regression clearly outperformed non-parametric person-fit indices in the task of identifying guessing patterns. We attribute this result to the greater flexibility of machine learning methods, which makes them more adaptable to diverse test environments than person-fit indices.
Effect of controlled drying on the properties of cellulose ester films synthesized in Novel Ionic Liquid [mTBNH][OAc]
Authors: Kattamanchi Tanuj , Kallakas Heikko , Tarasova Elvira , Alao Percy Festus , Mere Arvo , Krumme Andres , Kers Jaan
Published: October 2024

Cellulose, as a sustainable raw material, holds a promising future as a thermoplastic material. This work focused on fabricating cellulose ester thin films by using both controlled vacuum oven drying and conventional oven drying by the evaporation induced phase separation method (EIPS). A novel distillable ionic liquid (IL) 5-Methyl-1,5,7-triaza-bicyclo- [4.3.0]non-6-enium acetate [mTBNH][OAc]with high dissolving capability of cellulose along with dimethylsulfoxide (DMSO) as a co-solvent are used. The drying methods were compared to investigate their influence on the Cellulose ester films morphological and wettability properties. Based on the results, with increasing the drying rate in the vacuum oven the films have a smoother surface (with CP having 2.14nm RMS value) than the other samples, also indicating higher contact angles of 124 for CP under vacuum drying conditions with denser films.
Mapping benthic biodiversity variables of coral reefs using spatial interpolation of circular plot sampling
Authors: Broudic Léo , Pinault Mathieu , Claud Romain , Bajjouk Touria , Rungassamy Tévamie , Nikolic Natacha , Crochelet Estelle , Mazé Camille , Bergerot Benjamin
Published: October 2024

The spatialisation of essential biodiversity variables is a crucial step in assessing the health of coral reefs. However, few studies propose a comprehensive method for a large-scale assessment, such as coral reefs around Reunion Island. This requires a trade-off between the area, the study time, and the number of sampled stations needed to achieve spatial interpolations at an acceptable human and financial cost. We estimated nine sighting benthic biodiversity variables through visual assessments conducted in 2,599 circular plots per 100 m², distributed in two zones (reef flat, outer slope) and 14 habitats present across four sites (fringing reefs) on Reunion Island. A stratified sampling plan that is homogeneous within zones and differentiate between zones is appropriate, particularly for the study of a reef at several spatial scales (site, zone, habitat). We first demonstrated that the sampling effort enabled statistical discrimination and spatialisation of the nine benthic biodiversity variables within all the landscape units. Subsequently, we investigated the reliability limits of the spatial models by reducing the sampling effort of an increasing proportion of stations using bootstrap resampling. Results showed that station densities of 0.5 to 1.2 stations.ha− 1 (outer slopes) and 1.5 to 4.3 stations.ha− 1 (reef flats) provide very satisfactory to excellent spatialisation of the essential biodiversity variables. Depending on the objectives, the resolution and the available resources, our method allows an estimation of the trade-off between required information for mapping benthic biodiversity variables of coral reefs using spatial interpolation and sampling effort.
An innovative approach to the multidisciplinary treatment of uninsured breast cancer patients
Authors: Nodora Jesse N. , Gilbert Jacqueline A. , Martinez Maria Elena , Arslan Waqas , Reyes Trevin , Dover John A. , Ramos Gilbert A. , Komenaka Ian G. , Hitchon Hebert D , Komenaka Ian K.
Published: October 2024

Purpose
A significant proportion of many populations remain uninsured. The aim of the study was to assess differences in breast cancer outcomes before and after the implementation of an innovative approach to the multidisciplinary treatment of uninsured breast cancer patients.
Methods
Retrospective review was performed of patients seen at a safety net hospital from January 2000 to December 2020. Beginning July 2006 an innovative approach was implemented to lower patient costs to facilitate care of uninsured patients.
Results
The study included 1,797 patients, 661 patients before the changes (BCS), 1,136 patients after implementation of the new cost saving approach (ACS). The mean age was 53 years. The majority were uninsured (56%) or insured by Medicaid (31%). Only 18% underwent screening mammography.
The ACS group had a higher rate of breast conservation (75% vs 47%, p < 0.001). A higher percentage of the ACS group received adjuvant therapy: Chemotherapy (91% vs 70%, p < 0.001), Radiation therapy (91% vs 70%, p < 0.001), and initiated endocrine therapy (87% vs 67%, p < 0.001). After follow up of 8 years, these changes resulted in lower ipsilateral breast tumor recurrence (2% vs 16%, p < 0.001) and chest wall recurrence (5% versus 8%) and improvement in overall survival (90% vs 81%, p < 0.001).
Conclusion
Peer reviewed literature is replete of studies documenting disparities in breast cancer treatment. The current study describes a successful cost limiting method which takes advantage of existing financial assistance programs to improve care in uninsured patients.
The resonant Raman response of confined carbyne is solely driven by anharmonic interactions
Authors: Parth Emil , Corradini Andrea , Cui Weili , Romanin Davide , Schuster Christin , Freytag Clara , Shi Lei , Yanagi Kazuhiro , Calandra Matteo , Pichler Thomas
Published: October 2024

The resonant Raman response is due to electronic and vibrational excitations.
Interestingly, the resonant Raman fingerprint of confined carbyne is highly unconventional and comes concomitant to several new features which can neither be assigned to the hosting tube, nor to the linear carbon chain a.k.a carbyne. This identifies the tube-chain system as a true hybrid structure in which the spectrum is usually driven by strong modifications in the electronic excitations via charge transfer. Surprisingly, we show that the electronic structure results from those of the two isolated systems and the large spectral modifications are solely due to the strong anharmonic interactions between the tube and the chain.
Our work establishes confined carbyne as the ideal test system to probe strong anharmonicity in one dimension and its huge implications on the resonant Raman response.
Pore pressure prediction based on elastic parameters derived from seismic prestack multiwave inversion
Authors: Dou Yutan , Li Fei , Wang Yonggang , Zhang Mengbo , Du Guanghong , Liu Feng
Published: October 2024

Pore pressure prediction is one of the major geological tasks related to oil and gas exploration and development. In this research, highly accurate elastic parameters, such as P- and S-wave impedance and density from seismic prestack multiwave joint inversion, are obtained and then innovatively converted to the burial depth domain. Moreover, based on the formation pressure measurements of wells with acoustic full-waveform logging data, a second-order polynomial is applied for △H/H and H via the least-square method. Finally, the pore pressure is calculated using the modified Liu’s pore pressure model. The pore pressure prediction method, which incorporates accurately calculated elastic parameters, S-wave impedance, and density, is found to have a higher prediction accuracy than methods based solely on P-wave impedance; it also provides enhanced resolution for pore pressure prediction in thin reservoirs. The presented method is particularly suitable for tight gas fields.
Simulation of Piezoelectric Inkjet Printing Using Fluid Structural Interaction
Authors: Shin Dong Yeol , Jeong Jaebum , Jeong Woo Jin , Jang Seok Hwan , Kang Sung Wook , Kang Kyung-Tae , Kim Jun Young
Published: October 2024

As inkjet printers have recently been used to manufacture organic/quantum dot light-emitting diode displays, stable ink drops and control have become important during the printing process. This paper proposes a combination simulation of Ansys Fluent and Ansys Mechanical to find the conditions of stable ink droplets. To confirm the feasibility of the simulation, a jetting simulation of Newtonian fluids with practically constant viscosity was performed, and the results were compared with experimental results. Next, we performed a simulation of commercial non-Newtonian ink whose viscosity changed with a change in shear rate and compared the results with the experimental results. The experimental and simulation outcomes differed under the same voltage conditions. The study findings show that inkjet simulation can be employed not only to find stable drop conditions but also to observe changes in pressure in the inkjet nozzle.
The Effect of Ankle Floss Band Application on Football Players:Serial Group Design Study
Authors: KOC Harun Mete , Aracı Ayca , BALTACI Gul
Published: October 2024

Background:This study aimed to assess the effectiveness of ankle dorsiflexion exercises with floss bands on balance, proprioception, and physical performance in football players.
Methods:A serial group design was used.The study group(SG)(n=36) received floss band application, followed by a 72-hour rest,while the control group (CG)(n=36) received foam sponge bandage application.Both groups performed identical exercises.Measurements were taken before and after bandaging and exercises.Ankle dorsiflexion range of motion (DF-ROM) was evaluated using the weight-bearing lunge test,static balance was assessed via a smartphone application,dynamic balance was measured with the Y-balance test,and proprioception was tested with the joint position sense test.Jump performance was evaluated through the triple hop test.
Results:Intra-group evaluations showed significant improvements in ankle DF-ROM,static and dynamic balance,proprioception, and jump performance in the SG (p < 0.05),while the CG only showed significant improvement in the Y-balance test (p < 0.05).Comparatively, the SG exhibited significantly higher DF-ROM than the CG (p < 0.05).Effect sizes indicated greater post-test improvements in static balance, dynamic balance, proprioception, and the triple hop test for the SG.
Conclusions:Integrating floss band training into football players' training or rehabilitation may enhance athletic performance and motor control.
Trial Registration: The study protocol was approved by the Ethics Committee of Alanya Alaaddin Keykubat University, Non-Interventional Clinical Research Ethics Committee on October 10, 2023, with decision number 2023/01, and was conducted in accordance with the principles set forth in the Declaration of Helsinki. The study was registered at www.ClinicalTrials.gov (identifier: NCT06491277).
Impact of endometrial thickness alteration in response to progesterone administration on neonatal outcomes in frozen embryo transfer cycles: analysis of 6331 singleton newborns
Authors: Ye Jing , Zhang Jie , Du Tong , Yu Sha , Zhu Yanwen , Gao Hongyuan , Liu Yali , Chen Qiuju , Kuang Yanping
Published: October 2024

Background
To assess the impact of progesterone-induced changes in endometrial thickness (EMT) on singleton infant outcomes during frozen-thawed embryo transfer (FET) cycles.
Methods
This retrospective observational study included a total of 6331 singleton live births resulting from frozen-thawed Day 3 embryo transfer. Endometrial thickness (EMT) was assessed using transvaginal ultrasound one day prior to progesterone administration and on the day of frozen embryo transfer (FET) to examine any variations in EMT. The study population comprised 6331 women, who were categorized into three groups based on changes in EMT: the EMT increase group, the EMT decrease group, and the EMT stable group. The primary outcomes investigated in this study were mean birthweight, low birthweight (LBW), and small-for-gestational age (SGA). A multivariable linear regression analysis was performed to explore the association between changes in EMT following progesterone administration and newborns' birthweight.
Results
Despite any fluctuations in EMT levels on the day of FET compared to one day prior to progesterone administration, there were no statistically significant differences observed in the absolute mean birthweight of singletons among the three groups (3355.30 ± 502.69 vs. 3351.30 ± 474.79 vs. 3344.26 ± 514.54, P = 0.753). In comparison to the stable EMT group, the decreased EMT group had incidences of LBW and SGA in term infants at 1.1% (adjusted odds ratio [aOR]: 1.645, 95% confidence interval [CI]: 0.818–3.307) and 2.7% (aOR: 1.141, 95% CI:0.783–1.662), respectively; however, there was no significant association between the increased EMT group and risks of LBW (aOR: 1.310, 95% CI:0.723–2.375) or SGA (aOR:0.912, 95% CI:0.660–1.261). The multiple linear regression analysis revealed that both gestational age and infant gender exerted significant influences on singleton birthweight, while any alteration in endometrial thickness subsequent to progesterone administration did not yield a statistically significant impact on singleton birthweight.
Conclusions
The extent of EMT may exhibit variability, either increasing, decreasing, or remaining stable on the day of frozen embryo transfer (FET) compared to one day prior to progesterone administration. However, it is important to note that changes in EMT following progesterone administration do not demonstrate an independent association with adverse perinatal outcomes in term infants during FET cycles.
Thyroidectomy Without Drainage: Safe Practice or Risky Decision? - A Retrospective study of 1213 patients
Authors: Yu Yong Zhi , Cui Shi Peng , Yu Bin
Published: October 2024

Background: Drainage application remains a controversial topic and growing research has demonstrated that drainage following thyroidectomy is unnecessary. This study is aimed to determine the role of drainage after thyroidectomy and whether no drainage use is practical.
Methods: We retrospectively reviewed patients who underwent thyroidectomy at The First Affiliated Hospital of Soochow University were reviewed retrospectively. The patients were classified into two groups according to the drainage use or not. Postoperative complications, including hematoma, seroma, recurrent laryngeal nerve injury, hypoparathyroidism, wound infection, respiratory obstruction, and reoperation were compared between the two groups. Patients’ pain scores and length of hospital stay were also assessed.
Results: The study included 1,213 patients with no deaths in either group. No statistically significant differences were found in the postoperative complications between the two groups, except for recurrent laryngeal nerve injury (p=0.038). Patients in Group 2 (non-drained) experienced significantly fewer laryngeal nerve injuries than those in Group 1 (drained). Patients in group 2 (non-drained) had significantly lower numerical rating scale (NRS) scores (p<0.001) and a shorter length of hospital stay (p<0.001).
Conclusion: No drainage use has been indicated as safe and effective for patients who undergo thyroidectomy. Drainage following thyroidectomy is not a practical procedure.