bluuebunny/crossref_metadata_2025 huggingface dataset:
Pengaruh Penggunaan Youtube Terhadap Kemampuan Literasi Numerasi Pada Anak Usia Dini Kelompok B
Authors: Resti Retno Sari  , Icam Sutisna  , Waode Eti Hardiyanti
Published: February 2024

The study findings revealed that a sample size of 20 children indicated a significant difference in the average scores between the pretest and posttest of numeracy literacy skills. This indicated an influence of YouTube usage in enhancing the children's early numeracy literacy skills. The statistical analysis of the pretest scores revealed that the initial numeracy literacy ability was 19.1 (19.1%) of the total score, which amounted to 8. The posttest value of children's numeracy literacy results in an average score of 28.25 (28.25%) of a total score of 8, with the one-sample Kolmogorov-Smirnov test data normality test with a pretest significance value of 0.099 > 0.05, and a posttest significance value of 0.200 > 0.05, and the results of the t-test obtained a value of ￼ 23.719, while the value of  at (x) = 0.05 is 2.093 if  23.719 > 2.093, then Ho is rejected, and Ha is accepted. Meaning that there is an influence of the use of YouTube media on numeracy literacy skills in group B early childhood at TK State Pembina Botumoito Kindergarten. The utilization of YouTube as an alternative solution is suggested to address the challenges faced by learners.

 

The study findings revealed that a sample size of 20 children indicated a significant difference in the average scores between the pretest and posttest of numeracy literacy skills. This indicated an influence of YouTube usage in enhancing the children's early numeracy literacy skills. The statistical analysis of the pretest scores revealed that the initial numeracy literacy ability was 19.1 (19.1%) of the total score, which amounted to 8. The posttest value of children's numeracy literacy results in an average score of 28.25 (28.25%) of a total score of 8, with the one-sample Kolmogorov-Smirnov test data normality test with a pretest significance value of 0.099 > 0.05, and a posttest significance value of 0.200 > 0.05, and the results of the t-test obtained a value of ￼ 23.719, while the value of  at (x) = 0.05 is 2.093 if  23.719 > 2.093, then Ho is rejected, and Ha is accepted. Meaning that there is an influence of the use of YouTube media on numeracy literacy skills in group B early childhood at TK State Pembina Botumoito Kindergarten. The utilization of YouTube as an alternative solution is suggested to address the challenges faced by learners.
Online Trust Determinants, Consumer Perception, and Purchase Intent in Saudi E-Commerce: Exploring Determinants and Evidence
Authors: Helmi Majed , Alharthi Sager , Habib Sufyan
Published: February 2024

This study aimed to explore the growing use of the internet as a commercial sales channel, emphasising the pivotal role of trust in online consumer relationships. This research focused on Saudi e-commerce platforms (e.g. Amazon.sa, Noon, Namshi, and Shein), due to their remarkable growth over previous years, by investigating the effect of consumer trust on online purchase intentions. The study surveyed 449 Saudi online shoppers, using a structural equation model to analyse the factors that determine online trust (perceived information quality, company competency, security, and online consumer reviews) and their influence on consumer online trust and perceived risk. The results revealed significant relationships between consumer online trust and perceived information quality, company competency, and security, challenging expectations regarding the link between online consumer reviews and consumer online trust. Surprisingly, online consumer reviews primarily influenced perceived risk rather than consumer online trust, impacting purchase intention to a limited extent. The research underscores the substantial influence of consumer online trust on perceived risk and purchase intention, offering micro perspectives on online consumer behaviour. By identifying key influences, including information quality and security, this study provides theoretical and managerial insights for e-commerce platforms, guiding the development of responsible online channels.
KEYWORDS
company competency, consumer reviews, e-commerce antecedents, information quality, perceived security, Saudi consumers
Pengaruh pertumbuhan dan produksi jagung manis (Zea mays saccharata Sturt) terhadap pengujian berbagai varietas dan jenis urine
Authors: Wartono Wartono , Novianto Novianto , Astuti Istiqomah Dwi
Published: February 2024

Nilai gizi yang banyak pada jagung manis sehingga menyebabkan meningkatnya permintaan pasar cukup tinggi.  Penelitian ini bertujuan agar dapat menganalisis interaksi varietas jagung manis yang unggul dan jenis urine hewan yang terbaik.  Percobaan ini telah dilakukan di Kelurahan Taba Jemekeh Kecamatan Lubuklinggau Timur I Kota Lubuklinggau dengan elevasi 114 mdpl. Percobaan dilaksanakan dari bulan Maret 2021 sampai bulan Mei 2021. Percobaan ini diterapkan melalui metode Rancangan Acak Kelompok (RAK) faktorial meliputi 2 faktor perlakuan, dengan faktor pertama pengujian 3 taraf perlakuan varietas jagung manis yaitu : V1 = Bonanza, V2 = Talenta, V3 = Sweet Boy dan faktor kedua 3 taraf perlakuan jenis biourine U1 = Sapi, U2 = Kambing, U3 = Kerbau, dan menghasilkan 9 kombinasi  setiap unit percobaan dengan 3 kali pengulangan dan terdapat 27 unit uji coba terdiri dari 3 percontoh.  Hasil percobaan menunjukkan  kombinasi perlakuan antara varietas jagung manis Bonanza F1 dan aplikasi urine sapi (V1U1) memberikan respon pertumbuhan dan produksi terbaik dan pemberian biourine ternak secara tunggal pada parameter tinggi tanaman, jumlah daun, panjang akar, panjang tongkol, berat tongkol per batang dan kadar gula memberi respon sangat nyata.
Pengaruh substitusi sari buah tomat (Lycopersicum esculentum Mill) terhadap karakteristik soyghurt kedelai hitam (Glycine soja L Merrit)
Authors: Ningrumsari Ida , Saputra Asep Cahya , Herlinawati Lina
Published: February 2024

Salah satu upaya dalam memanfaatkan kedelai hitam dan tomat yaitu dibuat menjadi produk soyghurt kedelai hitam tomat. Tujuan percobaan ini yaitu untuk memperoleh imbangan sari buah tomat yang terbaik terhadap pH, vitamin C, dan total bakteri asam laktat pada karakteristik soyghurt kedelai hitam serta untuk memperoleh tingkat kesukaan masyarakat terhadap karakteristik soyghurt kedelai hitam tomat. Rancangan penelitian memakai RAL non faktorial dengan empat perlakuan dan enam kali pengulangan. Data yang sudah terhimpun dianalisis memakai analisis variansi (ANOVA), jika ada perbedaan yang signifikan maka akan  diteruskan dengan uji jarak berganda Duncan. Hasil penelitian menunjukkan bahwasanya pH terbaik pada perlakuan 15% sebesar 4,67, vitamin C terbaik pada perlakuan 15% sebesar 0,00107 IU dan total BAL terbaik pada perlakuan 15% sebesar 62,50 x 1011 CFU serta pengujian organoleptik terbaik rasa pada perlakuan 5% dengan tingkat kesukaan biasa, sedangkan untuk warna aroma dan tekstur pada perlakuan 15% dengan tingkat kesukaan biasa.
Perbandingan efektifitas pretreatment ozonolisis dan hydrothermal pressure dalam meningkatkan kandungan tanin dan kafein ekstrak kulit biji kakao (Theobroma cacao L.)
Authors: Utama Duhita D , Djali Mohammad , Cahyana Yana , Ajijah Melia Siti
Published: February 2024

Kulit biji kakao, yang sering dianggap sebagai limbah dalam proses produksi cokelat, mengandung senyawa-senyawa bioaktif seperti tanin dan kafein. Guna mempermudah ekstraksi senyawa-senyawa bioaktif tersebut, diperlukan metode pretreatment delignifikasi seperti ozonolisis dan hydrothermal pressure. Tujuan dari penelitian ini adalah untuk membandingkan efektivitas metode ozonolisis dan hydrothermal pressure dalam meningkatkan perolehan senyawa tanin dan kafein pada ekstrak kulit biji kakao. Pada metode pretreatment ozonolisis menggunakan alat ozonizer, sedangkan pada metode hydrothermal pressure menggunakan alat autoklaf Sementara ekstraksi yang dilakukan yaitu dengan metode maserasi. Metode analisis data yang digunakan yaitu Rancangan Acak Kelompok (RAK) yang diuji dengan Analisis Varian (ANOVA) serta dilanjutkan Duncan Multiple Range Test (DMRT). Hasil penelitian ini menunjukkan bahwa perlakuan pretreatment ozonolisis dan hydrothermal pressure sebelum proses ekstraksi terbukti meningkatkan perolehan senyawa bioaktif ekstrak kulit biji kakao. Metode pretreatment tersebut menunjukkan pengaruh positif terhadap perolehan senyawa total tanin dan aktivitas antioksidan, sedangkan pada senyawa kafein tidak menunjukkan pengaruh nyata. Metode pretreatment ozonolisis menunjukkan hasil terbaik dalam meningkatkan perolehan kadar kafein sebesar 49,79% yaitu menjadi sebanyak 1,083 mg/g. sementara metode pretreatment hydrothermal pressure memberikan hasil terbaik dalam meningkatkan perolehan total tanin sebesar 55,19% yaitu menjadi sebanyak 9,42 mg/g. Selain itu diketahui juga bahwa semakin tinggi konsentrasi tanin, semakin tinggi pula nilai aktivitas antioksidan yang dihasilkan.
Pembuatan telur tinggi kalium menggunakan metode dan jenis telur yang berbeda
Authors: Hufail Ibnu , Achyadi Nana Sutisna , Effendi Supli
Published: February 2024

The purpose of this research was to determine the characteristics of high potassium eggs based on different methods and types of eggs. The design that used in this research was a Randomized Block Design (RBD) with a factorial pattern on 2×3 with four replication. The experimental design was carried out in one stage, making high potassium eggs based on using different methodes and types of eggs. The different methodes were varied into dressing method (a1) and immersion method (a2). The types of eggs were varied into purebred chicken eggs (b1), duck eggs (b2), and native chicken eggs (b3). The high potassium eggs were analyzed for potassium content, water content, and organoleptic tests for taste and texture. The results of statistical analysis showed that the manufacturing method factor has a significant effect on the high potassium texture. The type of egg factor has a significant effect on water content, potassium content, and organoleptic effects on taste and texture. The interaction between two of then has no real effect. The characteristics of high potassium eggs b1 (purebred chicken eggs): potassium content 0.0191 mg and water content 31.5731%, The characteristics of high potassium eggs b2 (duck eggs) is potassium content 0.0241 mg and water content 37.0951%. The characteristics of high potassium eggs b3 (native chicken eggs) is potassium content 0.0191 mg and water content 34.1851%. The selected sample a2 (the immersion method) with b2 (the duck egg). The characteristics of high potassium eggs a2b2 is potassium content 0.0241 mg, water content 37.0951%, taste 2.8331 (somewhat dislike) and texture 3.871 (somewhat like).
Method for named entities linking with concepts of the Wikidata knowledge base
Authors:   Saint-Petrsburg Federal research center of the Russian academy of sciences, Teslya Nikolay N. , Shutiuk Vsevolod D. ,   LLC TINKOFF INVESTMENT TECHNOLOGIES, Zharkov Vladislav M. ,   Saint-Petrsburg Federal research center of the Russian academy of sciences, Vityazev Arseny P. ,   Saint-Petrsburg Federal research center of the Russian academy of sciences, Sipovsky Georgiy V. ,   Saint-Petrsburg Federal research center of the Russian academy of sciences
Published: February 2024

The paper presents a method for automatically linking named entities in Russian-language texts with concepts from the Wikidata knowledge base. It is based on the use of named entity search tools with subsequent semantic analysis of the correspondence of the found entity to the concept in the knowledge base. The resulting links can later be used to form a linked corpus of texts in any subject area. The difference between the presented method and existing ones is the analysis of both the named entity itself, its attributes, as well as associated words without the use of machine learning methods. This approach allows to increase the accuracy of searching for a corresponding concept in the knowledge base and eliminates the need to constantly retrain the neural network model to recognize new entities added to the knowledge base.
Logical analysis of data and knowledge without using an axiomatic approach
Authors:   Institute for Problems in Mechanical Engineering of the Russian Academy of Sciences, Kulik Boris A.
Published: February 2024

Logical analysis of data and knowledge is required not only in artificial intelligence systems, but also in mathematical proofs. This work shows the difficulties of logical analysis caused by the indisputable application of the formal axiomatic approach adopted at the turn of the XIX and XX centuries as the only theoretical basis of modern logic and the foundations of mathematics. In this approach, the main role is played by the axioms and methods of syntactic analysis, which underlie predicate calculus. Instead of set theory, we propose to use more simple algebra of sets as a theoretical basis of such a logic, for which the substantiation of the basic laws does not require axioms. A new approach to logical analysis based on the laws of set algebra is considered. Some advantages of this approach are shown, and a list of unresolved problems is provided.
Ranking assessment of the popularity of publications for online social media monitoring
Authors:   Putilov Institute for Informatics and Mathematical Modeling of the Kola Science Centre of the Russian Academy of Sciences, Shishaev Maxim G. , Dikovitsky Vladimir V. ,   Putilov Institute for Informatics and Mathematical Modeling of the Kola Science Centre of the Russian Academy of Sciences
Published: February 2024

The paper examines the possibility of using various methods for generating ranking estimates of the popularity of messages in online social media. Using experimental data collected from the VKontakte network as an example, it is shown that using quantitative indicators of likes, reposts and comments as the basis for an ranking assessment of popularity gives an equivalent result. The need to use popularity metrics, normalized by the number of views or the size of the community audience, is noted when analyzing several online communities at the same time.
Reasoning with temporal constraints
Authors:   Putilov Institute for Informatics and Mathematical Modeling of the Kola Science Centre of the Russian Academy of Sciences, Zuenko Aleksandr A. , Fridman Olga V. ,   Putilov Institute for Informatics and Mathematical Modeling of the Kola Science Centre of the Russian Academy of Sciences
Published: February 2024

The work deals with the organization of temporal reasoning basing on constraint satisfaction methods. The definition of the constraint satisfaction problem and the notion of constraint consistency are given. The possibilities of epresentation of a planning problem as an interval constraint network are considered. As a mathematical apparatus for the formalization of temporal reasining, the Allen’s interval algebra is described, which main operations are composition and the intersection of temporal relations. A path consistency algorithm is given that implements one of the types of local consistency on interval constraint network and uses computations based on operations of interval algebra. An example of the application of this algorithm is presented. In the conclusion the prospects for the development of methods of temporal reasoning are considered.
Features of uncertainty and risk assessment in safety management of the Northern sea route critical infrastructures
Authors:   Putilov Institute for Informatics and Mathematical Modeling of the Kola Science Centre of the Russian Academy of Sciences, Yakovlev Sergey Yu. , Shemyakin Alexey S. ,   Putilov Institute for Informatics and Mathematical Modeling of the Kola Science Centre of the Russian Academy of Sciences
Published: February 2024

The main focus of the work is on the issues of managing the safety of the socio-economic and transport and logistics infrastructures of the Arctic zone and the Northern Sea Route. Current development trends affecting assessments of uncertainty and risk are considered. It is proposed that plans and prospects for project implementation be assessed from the point of view of their vulnerability and feasibility. Such reflective analysis should be “built into” the safety management information system. Proper consideration of uncertainty and risk is intended to help improve the viability of critical infrastructures.
Numerical modeling of the spectrum of hydrogen thermal desorption
Authors:   Institute of Applied Mathematical Research of the Karelian Research Centre of the Russian Academy of Sciences, Zaika Yury V. , Kostikova Ekaterina K. ,   Institute of Applied Mathematical Research of the Karelian Research Centre of the Russian Academy of Sciences
Published: February 2024

The spectra of thermal desorption of hydrogen isotopes from structural materials was studied using mathematical models. Of interest is the identification of the causes and "driving forces" of a physicochemical nature corresponding to each peak and subsequent parametric identification in accordance with the accepted physically based model. The analysis of various mathematical models for two-peak spectra of metallic materials and the results of numerical modeling in Scilab software are presented.
Synthesis of 2,2-difluoro-1,3-diketone and 2,2-difluoro-1,3-ketoester derivatives using fluorine gas
Authors: Hampton Alexander S , Hodgson David R W , McDougald Graham , Wang Linhua , Sandford Graham
Published: February 2024

Solutions of 1,3-diketones and 1,3-ketoester derivatives react with fluorine to give the corresponding 2,2-difluoro-1,3-dicarbonyl derivatives in the presence of quinuclidine. Quinuclidine reacts with fluorine in situ to generate a fluoride ion that facilitates limiting enolization processes, and an electrophilic N–F fluorinating agent that is reactive towards neutral enol species.
Membagun Usaha Secara Digital / Online
Authors: Sallaby Achmat Fikri , Kanedi Indra , Siswanto Siswanto , Handayani Setiaji Ayu , Puspaningrum Endah
Published: February 2024

Based on reviews of the implementation of Community Service activities held in Hamlet II, Harapan Village, Pondok Kelapa District, Central Bengkulu Regency, residents are enthusiastic about understanding more about building digital/online businesses. Very big impact. So it is hoped that in the future these residents will be willing to implement and interact with each other to build digital businesses such as using e-business and e-commerce applications in Harpan Village, Pondok Coconut District, Central Bengkulu Regency, and be able to compete with the ability to guarantee that e-business meets the three key characteristics required. in any business transaction, validation, integrity and privacy encourage the adoption of digital technology which reduces cost efficiency and competition. This can be seen from the many questions asked by residents during the activity.
Edukasi Teknologi Bioflok Ikan Lele Sebagai Upaya Meningkatkan Gizi Siswa Pondok Pesantren Darul Khuldi
Authors: Meiwinda Eka Rizki , Almaniar Siska , Hasibuan Rahmawaty , Adawiyah Arabiatul , Kesuma R Zicky Chandra
Published: February 2024

Islamic boarding schools currently have many activities, apart from teaching and learning activities but also utilize other activities such as in the agricultural, plantation and fisheries sectors in order to utilize school land and as an effort to meet students' food needs. Catfish Biofloc Technology Education is one method used to teach students about how to cultivate fish in biofloc ponds. With this cultivation, it is hoped that it will become an additional source of income for the school. This service was carried out at the Darul Khuldi Islamic Boarding School, Ogan Komering Ulu Regency. Community service method carried out through education regarding raising catfish in biofloc ponds. Ultimately, with this activity, it is hoped that it will function as a food security program and increase sources of income for Islamic boarding schools.
Penguatan Program Latihan Bagi Pelatih Dan Atlet Pada Pekan Olahraga Pelajar Daerah (POPDA) Bolabasket Di Kabupaten Kepahiang
Authors: Anggara Deffri , Suwarni Suwarni , Perdima Feby Elra , Jantino Dwi , Saputra Nanda
Published: February 2024

Saat ini bola basket merupakan cabang olahraga yang sangat digemari oleh banyak kalangan termasuk dikalangan sekolah. Hal ini dapat dilihat dari banyaknya kegiatan kejuaraan bola basket tingkat SMP dan SMA yang diselengarakan pada tingkat sekolah di Provinsi Bengkulu umumnya dan Kabupaten Kepahiang khususnya. Kegiatan ini dilaksanakan secara langsung (tatap muka) dengan pesertanya yaitu pelatih dan atlet POPDA Kepahiang. Selain dikemas dalam bentuk sosialisasi, kegiatan ini juga dilengkapi dengan kegiatan turun langsung ke lapangan dan mempraktekkan teknik bolabasket. Kegiatan pengabdian di POPDA Kepahiang ini memiliki manfaat yang besar bagi pengurus POPDA tersebut dalam mengembangkan potensi atlet-atlet. Selain teknik yang semakin diasah juga pemberian program latihan.
Pelatihan Pengembangan Motivasi Terhadap Atlet Muda Bolabasket Kabupaten Kepahiang
Authors: Perdima Feby Elra , Suwarni Suwarni , Anggara Deffri , Jantino Dwi , Saputra Nanda
Published: February 2024

Bolabasket adalah sebuah olahraga permainan yang sederhana. Inti dan rahasia permainan bolabasket adalah melakukan hal-hal yang sederhana dengan sebaik-baiknya. Bolabasket adalah salah satu olahraga paling populer di dunia. Atlet muda menjadi sorotan baik bagi pengurus maupun pelatih karena mereka merupakan penerus-penerus atlet senior, sehingga mereka sangat perlu diperhatikan untuk tercapainya prestasi yang tinggi bagi mereka. Kegiatan ini dilaksanakan secara langsung (tatap muka) dengan pesertanya yaitu pelatih dan atlet muda bolabasket Kepahiang. Kegiatannya berbentuk pelatihan motivasi bagi atlet muda bolabasket Kepahiang. Kegiatan pengabdian pada atlet muda bolabasket Kepahiang ini memiliki manfaat yang besar bagi atlet, pelatih dan pengurus PERBASI Kepahiang tersebut dalam mengembangkan potensi atlet-atlet. Selain teknik yang semakin diasah juga pemberian motivasi.
Sosialisasi Peningkatan Minat Mahasiswa Dalam Mengikuti Kegiatan Ekstrakurikuler Sepakbola Unived Bengkulu
Authors: Apriansyah Dolly , Syaputra Roni , Personi Megi , Rahmalia Khotimah , Paulinsia Liza
Published: February 2024

Sepakbola Indonesia memiliki induk organisasi yaitu Persatuan Sepakbola Seluruh Indonesia (PSSI) organisasi ini memiliki tujuan meningkatkan prestasi di cabang olahraga sepakbola dengan mengadakan kejuaraan dan kompetisi antar klub sepakbola. Permainan sepakbola merupakan cabang olahraga yang populer dan merakyat semua golongan dapat melakukan dan menikmati sepakbola, kemenangan ditentukan oleh selisih gol yang masuk gawang lawan. Kegiatan ini dilaksanakan secara langsung (tatap muka) dengan pesertanya yaitu mahasiswa estrakurikuler sepakbola. Selain dikemas dalam bentuk diskusi dan sosialisasi, kegiatan ini juga dilengkapi dengan kegiatan tanya jawab mengenai pembinaan atlet. Berdasarkan capaian hasil kegiatan, dapat disimpulkan bahwa kegiatan pengabdian di estrakurikuler sepakbola ini memiliki manfaat yang besar bagi mahasiswa tersebut dalam mengembangkan pengetahuan mengenai peningkatan minat. Untuk Prodi Pendidikan Jasmani sendiri, selain sebagai salah satu perwujudan tridharma perguruan tinggi di masyarakat, kegiatan ini juga adalah sebagai salah satu wadah bagi tim dosen untuk menyalurkan ilmu yang dimiliki untuk masyarakat melalui sosialisasi peningkatan minat bermaiin sepakbola.
Pelatihan Pembelajaran Teknik Dasar Renang Berbasis Rekreasi Yang Ada Di Tais Kabupaten Seluma
Authors: Ertanto Dody , Putra Dwingki Marta , Sumantri Ajis
Published: February 2024

In Seluma Regency there is a club that was founded on July 28 2023, where the club is called the SPC Swimming Club, which happened to be founded by a lecturer at Dehasen University, namely Dwingki Marta Putra. The SPC Swimming Club was founded with the aim of advancing Seluma Regency's human resources, especially in swimming sports, because in swimming sports, Seluma Regency can be said to be lagging behind other districts. This can be seen when there are swimming tournaments or championships held in both districts and cities, there are no representatives of swimming athletes from Seluma, therefore the SPC Swimming Club was established so that human resources in Seluma Regency can compete. Where the SPC Swimming Club itself has 35 students, the majority of whom are elementary school students, meaning that with the existence of the SPC Swimming Club many children are enthusiastic about taking part in the training.
Mitigating Attentional Bias: The Impact of Perceived Social Self-Efficacy in Individuals with MMO Games Addiction Tendency
Authors:   The Korean Data Analysis Society, l l , l l
Published: February 2024

Low self-efficacy in interpersonal relationships, linked to MMO game addiction, worsens the inclination towards addiction as individuals seek social interaction within the game, leading to attentional bias towards game stimuli. This study aimed to investigate if manipulating perceived social self-efficacy levels could reduce attentional bias in MMO game addiction compared to non-addictive gamers. 503 undergraduates participated, including the MMO addiction group (n=60) and the control group (n=60), identified through the Korean version of the Internet Game Disorder Scale. Participants were divided into high and low perceived social self-efficacy conditions through false feedback. Dot probe tasks assessed attentional bias changes before and after manipulated feedback using a “social intelligence test.” The attentional bias score, initially higher in the addiction group, decreased after intervention with increased social self-efficacy. No significant changes were observed in control groups and the addiction group with decreased social self-efficacy. These findings confirm that boosting perceived social self-efficacy in MMO addiction can reduce attentional bias towards game stimuli, suggesting crucial interventions for alleviating addictive behaviors.
A Comparison of Uncertainty Quantification of Deep Learning models for Time Series
Authors:   The Korean Data Analysis Society, Yoon Young-In , Jeong Hye-Young
Published: February 2024

With the advancement of artificial intelligence, machine learning, and deep learning, their applications in various industries, particularly finance, have increased. However, interpreting predictions from deep learning models poses challenges, especially in finance where result interpretation is important. This study aims to determine the uncertainty of stable deep learning models, despite changes in the model like dropout, to establish standards for reliable models and identify those detecting anomal data through model uncertainty. In the experiment, the traditional statistical model ARIMA and deep learning models mainly used for time series analysis, CNN, LSTM, MLP, and CNN-LSTM. Uncertainty was measured from a Bayesian perspective using MC Dropout. The experimental results confirmed that deep learning models performed better than statistical models for various patterns of time series data. It was observed that, even if the performance was not the best, LSTM based models exhibited low uncertainty, indicating stability. Consequently, this study highlights the importance of considering uncertainty along with accuracy in model selection. Moreover, it was confirmed that models with higher uncertainty are suitable for anomaly detection, making CNN based models particularly fitting for this purpose.
Topic Analysis of Leading Economic Journals in Korea and the United States
Authors:   The Korean Data Analysis Society, Kim Taewan , Kang Changwan
Published: February 2024

American Economic Review in the United States and the Korean Journal of Economic Studies in Korea are both leading academic journals representing their respective countries in the field of economics. Founded in 1911 by the American Economic Association, American Economic Review, the monthly published journal is renowned as the most prestigious journal in the field of economics. On the other hand, the Korean Journal of Economic Studies, initiated by the Korean Economic Association in 1953, holds the longest tradition and authority in the field of economics in South Korea. In this study, we analyzed recent economic trends by examining abstracts published in the past three years, using these two countries' representative economic journals. The analysis involved web scraping 53 Korean abstracts (the Korean Journal of Economic Studies) and 320 English abstracts (American Economic Review) from 2021 to 2023, acquired from the online journal websites of both countries. To facilitate the interpretation of topic analysis, we applied selected topic-specific association rules to derive more refined insights. The results of the analysis revealed that the Korean journal encompasses seven topics, whereas the American journal covers five topics. The interpretation of these topics indicated that household income and regional economic themes are prevalent in the Korean Journal of Economic Studies, while topics related to the labor market and general equilibrium models are prominent in the American Economic Review.
An Analysis on the Dynamic Changes of Korean Housing Prices
Authors:   The Korean Data Analysis Society, Ko Dong-Woo , Yoon Seong-Min
Published: February 2024

Housing is one of the essential goods that determine the conditions of life. However, housing prices fluctuate widely depending on macroeconomic conditions, making it an important research topic. This study analyzes the dynamic changes in quarterly housing prices from 2006 to 2023, using GARCH model, Granger causality test, and vector error correction model(VECM). The main finding are as follows. First, there are inertial feedback effects in house price changes. Second, there is clustering and long-run persistence in the dynamics of house price volatility. Third, we find significant effects of housing loans on the demand side and housing construction permits and unsold housing units on the supply side on house prices. Housing loans have a positive effect in the short run, while housing supply variables such as housing construction permits and the number of unsold housing units have a negative effect in the long run. These results of our analysis suggest that the housing market follows the market principle that the role of housing supply and demand works well, and that housing prices have inertial characteristics with spikes and crashes depending on the economic environment. Housing policy-makers need to take these findings into account when formulating housing policies.
An Analysis of Global General Insurance Industry' Growth, Profitability and Safety Performance
Authors:   The Korean Data Analysis Society, Jeong JungYoung
Published: February 2024

The objective of this paper is to provide a theorectical and empirical frame work to asses the tradeoffs among three fundamental objectives: profitability, growth, and safety in global general insurance indusry (USA, Japan and Korea). Our financial performance analysis relies on panel data of global general insurance industry for the years from 2010 to 2019 by using key financial variables. A quantitative evaluation of three countries genneral insurers' financial growth, profitability and saferty areas is carried out. The financial evaluation is done in the growth, profitability and safety factors including premium and capital increse ratio, underwriting and investment income, leverage and solvency ratio. The results show that there are no key differences among three impact areas: impact of general insurance growth on profitability, profitability on saferty, safety on growth in three countries. Also, the results suggest that the impact of safety on profitability and growth is a positive and significant relationship and emphasize the need to jointly consider growth, profitability, and safety when evaluating general insurers financial performance. Therefore, global general insurance indusry has to strive to strengthen financial soundness through growth and profitability because underwriting profit and growth depend on the level of safety.
Factors related to depression in older adults : Focusing on leisure activity and social contact
Authors:   The Korean Data Analysis Society, Park Jeong Hye
Published: February 2024

The purpose of this study is to identify the factors related to the risk of depression in single-person households aged 65 or older and the elderly married couples, focusing on leisure activities and social contact factors. For this study, the data of 7,595 people selected according to the criteria for selecting subjects for this study were analyzed out of 10,097 participants in the 2020 Survey of the Elderly conducted by the Ministry of Health and Welfare and the Institute for Health and Social Affairs. For data analysis, frequency and percentage, mean and standard deviation, chi^2-test, independent sample T-test, and dichotomous logistic regression analysis were performed using the IBM SPSS Statistics Version 23.0 program. As a result, the risk of depression was statistically significantly lower in the case of leisure activities regardless of type than in the case of no leisure activities, and watching performances and sports games, and static entertainment activities were the most related factors to the risk of low depression. On the other hand, the frequency of meetings with children was not a significant factor related to the risk of depression, and frequent phone calls were a significant factor related to the risk of low depression. Meeting friends more than twice a week was a significant association factor with the low risk of depression, but phone calls with friends more than twice a week increased the risk of depression by 1.70 times. Therefore, in order to reduce the depression of the elderly in the increasing number of single-person or married households, it is necessary to encourage them to participate in any leisure activities and come up with measures to maintain social contact.
Psycho-social factors affecting on happiness of single-person households : focusing on the difference of life cycle
Authors:   The Korean Data Analysis Society, Kwon Taeyeon
Published: February 2024

This study examined the level of happiness and verified the effect of psycho-social factors on happiness of single person households by life cycle. Data from the Wave 2 of the Korean Happiness Study was used. The final sample for the analyses included data from 1,452 adults aged 20 or older who responded as a single-person household and multiple regression analyses were conducted for each life cycle of youth, middle age, and old age. The main results of this study are as follows. The happiness level of all single-person households was found to be average and decreased from youth to old age. In particular, the level of happiness in middle-aged and old age was found to be relatively low compared to youth. In addition, psychosocial factors affecting the happiness of single-person households were different by the life cycle. Satisfaction with standard of living, satisfaction with future stability, depression and social support were common predictive factors that affected the happiness of single-person households in all life cycles. On the other hand, only a sense of safety in youth, trust in others, social equality, self-rated health status, and stress in middle-aged age, and volunteer activities and satisfaction with neighborhood environment and community belonging in old age were the only new predictive factors that affected the happiness of single-person households. Based on this, policy and practical implications for improving the happiness of single-person households were suggested.
Sampling design for Rice, Red bean, Perilla seeds and Peanut cultivated Farms survey
Authors:   The Korean Data Analysis Society, Son Chang Kyoon , Hong Ki Hak , Lee Gi Sung
Published: February 2024

In this paper, as part of the Rural Development Administration's “Statistical Research on Cultivation Status by Crop Breed for Development of Consumer-Customized Breed Support Technology,” which is being carried out from 2022, we focused on the scientific estimation of statistics related to the cultivation area and households engaged in cultivating four food crops including rice, red beans, perilla seeds, and peanuts. In the 2023 survey, we deal with four major crops among the total of 15 subjects, which are considered key food crops. By the 2022 agricultural management database (DB) as the population, we selected major cultivation areas based on the scale of cultivation households for each crop. For each crop, we distinguished between the entire stratum and the sample stratum concerning the cultivation area. The sample size, approximately 1,500 households, was allocated using proportional allocation, Neyman allocation, and, notably, employing a power allocation method that ensured stable expected target error values for each stratum, known as power allocation. Subsequently, for the calculation of crop-specific statistics, we conducted a weight adjustment based on the population of households in the database. The results include estimates for the total and average quantities for each crop and variety.
Comparative analysis of survival rates by major cancer types in Busan using Frailty models
Authors:   The Korean Data Analysis Society, Jang Seung-hye , Kwon Ki-Ryong , Noh Maeng-seok
Published: February 2024

Although the cancer treatment rate has been very high due to the development of modern medicine, the cancer mortality rate in Korea is continuously increasing, and in particular, the cancer death rate in Busan is higher than other regions. In this paper, survival analysis by cancer type was performed on the six major cancer patients in the country using data from cancer patients registered in Busan from 2000 to 2019. For a accurate analysis at small area, a frailty model considering administrative dong as a random effect was fitted. In addition, considering the shortcomings that it is difficult to properly reflect the recent trend due to the fact that many people diagnosed a long time ago, the data were analyzed with the year effect into four periods, and differences by period, cancer type, sex, age, and stage were identified. As a result of fitting the Frailty model with the fixed effect of year, sex, age, and stage as the fixed effect and the variable effect of administrative wards, the heterogeneity between administrative wards was significant. As a result of classifying by period and analyzing recent trends, it was confirmed that the risk of death was generally lower in the second half than in the first half.
A Forward Approach for Sufficient Dimension Reduction in Binary Classification for Large-scale Data
Authors:   The Korean Data Analysis Society, Kang Jongkyeong , Park Seunghwan , Bang Sungwan
Published: February 2024

Sufficient dimension reduction, aimed at finding a lower-dimensional subspace in explanatory variables that contains response variable information, typically relies on inverse-based methodologies. These methods are easy to implement but often require linear or constant variance conditions. To address these limitations, techniques for forwardly estimating the central subspace have been developed. In particular, methods utilizing the Reproducing Kernel Hilbert Space have gained attention, but their use in analyzing large datasets is limited due to the characteristics of the kernel space. In this paper, we study a novel forward approach for sufficient dimension reduction in binomial classification of large-scale data. We propose a method that employs a divide-and-conquer technique to split data into subsets, then independently perform dimension reduction on each subset before synthesizing them into a final model. It was shown that when the number of partitions of data was appropriately selected, the loss in prediction accuracy was not significant compared to the existing method, while being efficient in terms of storage space and calculation cost. In addition, simulations in various models showed superior prediction accuracy than other inverse-based techniques. The utility of the proposed method was confirmed through the real data analysis.
Pelatihan B2SA (Beragam, Bergizi, Seimbang, dan Aman) Bagi Pengelola Makanan (Catering) Boarding School Kota Bandung
Authors: Marini Sri , Karnita Ita , Aditya Wahyono Surya , Supriadi Geri , Rabasari Sara , Rosmiati Rima , Wahyudin Ahmad , Galtieri Yudha
Published: February 2024

Pengelolaan makanan (catering) boarding school yang baik menjamin kecukupan gizi para siswa. Tantangan saat ini adalah bagaimana memenuhi makanan yang beragam, bergizi, seimbang dan aman (B2SA) yang tengah diusung dan menjadi program Dinas Ketahanan pangan dan Pertanian (DKPP) Kota Bandung. Kegiatan pengabdian masyarakat ini bertujuan untuk memberikan pengetahuan baik secara teori maupun praktikal kepada para pengelola makanan (catering) boarding school kota Bandung. Materi Pelatihan dipilih berdasarkan kebutuhan dari pengelola dapur pondok pesantren yang ada di Bandung, terutama dalam pengolahan makanan yang beragam, bergizi seimbang dan aman. Metode kegiatan pengabdian ini adalah melalui penyuluhan, demo dan praktik. Peserta kegiatan pengabdian masyarakat ini berjumlah 35 orang pengelola makanan boarding school di kota Bandung. Langkah awal dilakukan koordinasi dengan DKPP sebagai mitra pelaksana pengabdian masyarakat, juga koordinasi dengan sasaran pengabdian sebelum dilaksanakan kegiatan pelatihan. Luaran program kemitraan masyarakat ini adalah meningkatnya pemahaman para pengelola makanan boarding school di kota Bandung mengenai pengolahan makanan yang beragam, bergizi, seimbang, dan aman.
Sosialisasi Jenis Cedera dan Cara Penangannya Pada cabang Olahraga Beladiri Atlet PPLP Provinsi Sulawesi Selatan
Authors: Suyudi Imam , Sahabuddin  , H Herman
Published: February 2024

Tujuan kegiatan pengabdian masyarakat ini adalah untuk membantu para atlet dan pelatih bela diri dalam memberikan pemahaman tentang jenis cedera dan cara penangannyasecara teoritis dan praktis baik saat melakukan latihan maupun pada saat mengikuti kejuaraan. Pengabdian kepada masyarakat ini dilaksanakan di Makassar PPLP Sulawesi Selatan. Materi yang disampaikan pada kegiatan ini adalah jenis cedera dan cara penanganannya secara teori da praktek. Hasil pelaksanaan kegiatan pengabdian kepada masyarakat ini adalah menghasilkan atlet dan pelatih yang dapat mengetahui jenis-jenis cedera dan cara penanggulangannya secara dini. Sosialisasi ini sangat membantu para atlet dan pelatih bela diri dalam mempraktekkannya.
SOSIALISASI METODE PEMBELAJARAN BERMAIN DILUAR RUANGAN ANAK USIA DINI: Pengabdian Kepada Masyarakat
Authors: Supriady Andy , Trisari Schiff Nancy , Kurnia Dedi , Budiman Ali , Sulistiadinata Heru , Ahmad Karisman Vicki , Febria Friskawati Gita , Hadyansah Diky
Published: February 2024

Bermain di luar ruangan, khususnya akan memberikan kesempatan belajar dan berkembang yang unik dalam pendidikan anak usia dini. Bermain di luar ruangan penting bagi anak-anak dalam hal perkembangan fisik, perkembangan kognitif, perkembangan sosial dan emosional, serta pembelajaran akademis. Dengan berpartisipasi dalam aktivitas fisik yang kompleks dan menghabiskan lebih banyak waktu bermain di luar ruangan akan terkait dengan kesiapan sekolah. Pengabdian ini bertujuan agar guru-guru mengetahui   apa-apa   saja   metode pembelajaran yang   dapat digunakan   didalam   proses   pengembangan   motorik kasar anak.   PKM   ini dilaksanakan di TK Nurul Aulia Cimahi dikuti oleh 4 orang guru dan 15 siswa/siswi. Kegiatan  ini  dilaksanakan  dalam  4  sesi  dimana  sesi satu merupakan sosialisasi program outdoor play, sesi kedua dan ketiga implementasi program, dan sesi ke empat evaluasi program. Hasil kegiatan PKM ini menjadi data hasil tes keterampilan motorik kasar siswa/siswi sebagai responden, serta menjadi rekomendasi dan rujukan sekolah dan guru untuk memberikan metode pembelajaran yang dapat menunjang perkembagan anak usia dini dengan menggunakan program luar ruangan (outdoor play).
Percepción del paciente sobre el cuidado humanizado de Enfermería
Authors: Flores Romo Ana Gabriela , Laura Berenice Zorrilla Martinez , Araujo Espino Roxana , Reveles Caldera Eduardo , Trejo Ortíz Perla María , Calderon Ibarra Alejandro
Published: February 2024

Objetivo: Describir la percepción que tienen los usuarios del cuidado humanizado que brinda el personal de enfermería en un hospital público en México. Método: Se llevó a cabo un estudio de tipo descriptivo transversal en el que se incluyeron a 52 usuarios admitidos en áreas de cuidados intensivos, traumatología y ortopedia, medicina interna y cirugía, con un muestreo no probabilístico a disponibilidad, para recolectar la información se usó la escala PCHE 3ra versión, el estudio se apegó a lo dispuesto por el tratado de Helsinki. Los datos fueron vaciados y analizados en el programa estadístico SPSS para Windows versión 23. Resultados: El PCHE 3er versión obtuvo un alfa 0.980, predomino el sexo masculino con un 51.9%, el estado civil casado con un 65.4% y con escolaridad de primaria con un 48.1%, en cuanto al cuidado humanizado se encontró que el profesional de enfermería siempre otorga un cuidado humanizado percibido en un 63.5%. Conclusiones: Los pacientes que participaron en el presente estudio no perciben un cuidado humanizado en su totalidad, lo que genera áreas de oportunidad para mejorar la atención.
Two Sides of Social Media: an Assistance on Youth Using Social Media In Tuban District
Authors: Hidayati Niswatin Nurul
Published: February 2024

The aim of the assistance was to explore the multifaceted role of assistance programs dedicated to guiding and supporting youth in their use of social media in Tuban District, especially in Montong Sub District. As adolescents and young adults increasingly turn to online platforms for communication, information sharing, and identity formation, the need for constructive guidance becomes paramount. Recognizing the transformative potential of social media in the lives of the youth, this article aims to shed light on initiatives aimed at providing assistance and mentorship. The mentoring method used was in the form of seminars and practical sessions. Based on the mentoring program conducted for the youth in the Montong Sub District Tuban District, it can be concluded that internet usage has been massively adopted by the youth. However, this usage is not yet fully harnessed for the benefit of both individuals and institutions in their respective workplaces. Additionally, it can be said that through this seminar, the youth gained insights into various aspects, ranging from utilizing social media for branding to obtaining more information about the internet and its economic impact, the positive and negative aspects of social media, and social media ethics. A suggestion from the author is the hope that similar activities can continue to be implemented continuously. Furthermore, it is advisable to incorporate more in-depth digital literacy aspects in subsequent activities