bluuebunny/crossref_metadata_2025 huggingface dataset:
Analisis Sistem Pakar Dengan Metode Forward Chaining untuk Pengenalan Jenis Kulit Wajah pada Manusia
Authors: Sulindawaty Sulindawaty , Fahmi Hasanul
Published: March 2024

Wajah merupakan hal utama yang menjadi perhatian maupun daya tarik bagi sesorang dalam berpenampilan. Kulit wajah yang sehat dan bersih menjadi hal yang sangat didambakan oleh manusia. Keberagaman produk kosmetik serta praktik kecantikan menjadi salah satu yang sangat diminati untuk memberikan solusi kesehatan dan kecantikan kulit wajah. Untuk mempermudah setiap orang dalam mengenali jenis kulit wajah, dapat diterapkan sistem pakar dengan menggunakan metode forward chaining. Sistem Pakar dapat memberikan solusi dalam menganalisis jenis kulit wajah karena pada sistem ini data yang diperoleh dari para pakar secara langsusng. Forward chaining digunakan untuk menelusuri jenis kulit wajah berdasarkan penalaran atau pelacakan suatu data dari fakta-fakta yang diperoleh untuk mendapatkan kesimpulan. Dari pengujian yang dilakukan dalam penelitian ini menunjukkan nilai akurasi sebesar 83,3% yang menunjukkan hasil sesuai dengan diagnosa pakar. Hasil penelitian ini menunjukan bahwa sistem pakar dengan menerapkan metode backward chaining efektif dalam menghasilkan informasi untuk mengetahui jenis kulit wajah pada manusia sehingga dapat melakukan perawatan maupun memilih jenis kosmetik yang sesuai.
Penerapan Algoritma Certainty Factor dalam Diagnosa Penyakit Guillain-Barre Syndrome
Authors: Indra Angkat Chairul , Marzuki Sianturi Ismail , Hartono Sinambela Sugi , Sitorus Zulham , Khairul Khairul
Published: March 2024

Gangguan neurologis, seperti Guillain-Barre Syndrome (GBS), terjadi akibat disfungsi otak atau sistem saraf manusia, dengan dampak yang dapat merugikan pertumbuhan anak dari segi psikologis dan fisik. Gejala bervariasi tergantung pada bagian otak atau sistem saraf yang terpengaruh, terjadi pada berbagai rentang usia, mulai dari bayi hingga usia dewasa. GBS, penyakit sistem saraf tepi, dapat muncul pada berbagai kelompok usia dan disebabkan oleh peradangan yang merusak lapisan mielin saraf pada motor neuron serta melibatkan kelainan autoimun pada beberapa individu yang terkena. Infeksi terkait GBS dapat disebabkan oleh bakteri Campylobacter pylori yang dapat dideteksi melalui pemeriksaan laboratorium. Meskipun sangat langka, hanya sekitar 1 dari 100.000 orang yang mengalami gangguan sistem saraf akibat penyakit ini. Gejala GBS mencakup kram otot, parestesia, kesulitan menelan, kesulitan bernafas, kehilangan respons motorik, peningkatan denyut nadi, gangguan pencernaan, kelebihan keringat, dan ketidakstabilan tekanan darah. Untuk memfasilitasi diagnosa penyakit ini, disarankan penggunaan sistem pakar yang dapat memberikan keputusan melalui analisis masalah dengan menerapkan metode atau algoritma tertentu, termasuk algoritma certainty factor. Hal ini diharapkan dapat meningkatkan efisiensi dan objektivitas dalam proses diagnosa penyakit GBS tanpa memerlukan pertemuan langsung antara dokter dan pasien. Penelitian ini bertujuan untuk mengidentifikasi jenis penyakit berdasarkan gejala atau keluhan pasien melalui penerapan certainty factor. Hasil diagnosa menunjukkan persentase tingkat keyakinan sebesar 99.7%, memberikan kontribusi dalam penyediaan diagnosis yang cepat, efisien, dan objektif, mengurangi ketergantungan pada pertemuan langsung antara dokter atau pakar dengan pasien.
Pengembangan Aplikasi Berbasis Web untuk Penambangan Pola Asosiasi Menggunakan Metode Apriori
Authors: Andriani Fitri , Sihombing Volvo , Putra Juledi Angga
Published: March 2024

Penelitian ini bertujuan untuk mengembangkan sebuah aplikasi berbasis web untuk penambangan pola asosiasi menggunakan metode Apriori. Metode Apriori adalah salah satu algoritma yang digunakan dalam analisis data untuk menemukan pola asosiasi antara item-item dalam data transaksional. Aplikasi ini dirancang untuk memudahkan pengguna dalam menganalisis data mereka dan mengidentifikasi hubungan antara item-item dalam transaksi mereka tanpa perlu instalasi perangkat lunak tambahan di komputerLangkah-langkah pengembangan aplikasi mencakup perencanaan dan perancangan aplikasi, pengumpulan dan pemrosesan data transaksional, implementasi algoritma Apriori, pembuatan antarmuka pengguna web yang intuitif, penyimpanan hasil analisis dalam basis data, serta langkah-langkah keamanan dan optimisasi kinerja. Aplikasi ini juga akan memberikan panduan pengguna dan pelatihan bagi mereka yang ingin memahami cara menggunakan algoritma Apriori untuk analisis pola asosiasi. Selain itu, aplikasi ini akan memperhatikan keamanan data, terutama jika data yang digunakan adalah data sensitif. Hal ini mencakup otentikasi pengguna dan enkripsi data untuk melindungi privasi dan keamanan informasi pengguna. Hasil penelitian ini diharapkan dapat membantu analis data, peneliti, dan bisnis untuk mengidentifikasi pola asosiasi yang relevan dalam data transaksional mereka, yang pada gilirannya dapat digunakan untuk pengambilan keputusan yang lebih baik dan pengembangan strategi bisnis yang lebih efektif. Aplikasi ini dapat digunakan di berbagai bidang, termasuk e-commerce, analisis pelanggan, dan manajemen rantai pasokan.
Penentuan Faktor-Faktor yang Mempengaruhi Kepuasan Pelanggan dengan Menggunakan Algoritma C4.5
Authors: Purba Hardiman , Putra Juledi Angga , Rasyid Munthe Ibnu
Published: March 2024

Kepuasan pelanggan menjadi fokus utama dalam industri yang semakin kompetitif. Penelitian ini bertujuan untuk menentukan faktor-faktor yang memiliki dampak signifikan terhadap kepuasan pelanggan menggunakan pendekatan algoritma C4.5, sebuah algoritma pembelajaran mesin untuk membangun pohon keputusan. Data survei kepuasan pelanggan dari berbagai sektor industri digunakan sebagai basis analisis. Metodologi penelitian melibatkan pengumpulan data melalui survei daring yang mencakup berbagai variabel yang mungkin mempengaruhi kepuasan pelanggan. Selanjutnya, algoritma C4.5 diterapkan untuk mengidentifikasi dan mengukur signifikansi faktor-faktor tersebut. Hasil analisis memberikan pemahaman yang mendalam tentang faktor-faktor yang paling berpengaruh terhadap tingkat kepuasan pelanggan. Dalam temuan penelitian, beberapa faktor utama yang memengaruhi kepuasan pelanggan berhasil diidentifikasi dan dianalisis. Hasil ini memberikan pandangan yang berharga bagi perusahaan dalam mengarahkan upaya perbaikan layanan dan pengembangan strategi yang lebih efektif. Penelitian ini juga membahas aplikabilitas algoritma C4.5 dalam menganalisis data survei kepuasan pelanggan, menunjukkan potensi algoritma ini sebagai alat yang efektif untuk mendukung pengambilan keputusan berbasis data di berbagai sektor industri. Kesimpulannya, penelitian ini memberikan kontribusi penting dalam memahami dan meningkatkan kepuasan pelanggan melalui pendekatan analitik yang canggih.
Memodelkan Proses Bisnis Pembayaran Transaksi Terpadu berbasis Digital
Authors: Kartini Kartini , Malabay Malabay , Simorangkir Holder
Published: March 2024

PengusahaX (penulis tidak diizinkan menyebutkan nama) memiliki 19 toko di beberapa market places. Data penulis dapat saat  wawancara. Setiap tokonya menjual barang-barang berbeda-beda.  PengusahaX sudah tidak punya waktu untuk memantau kelokasi bisnisnya beroperasi dan sudah dipercayakan sepenuhnya kepada karyawan menjalankanya. sistem penggajian karyawanya, bagi hasil, bila penjualan besar, maka mendapatkan upah yang besar pula. Customers yang belanja pada tokonya masih mengunakan uang tunai. Owner toko menerima  laporan jumlah transaksi penjualan perhari dan perminggu via email dalam format Excel. Laporan yang diterima selalu dia hitung ulang, dan ada terdapat ketidaksesuaian dengan perhitungannya (ada sedikit kurang), meskipun tidak semua toko. Masalah ini sering terjadi, dan belum teratasi saat ini. Metode yang digunakan dalam memodelkan proses bisnis pembayaran transaksi terpadu ini Unified Modelling Language, dan menggunakan kaidah paradigma Prototype. Penulis mengasumsikan toko-toko sebagai resellers pada market pelaces. Untuk mendapatkan data jumlah transaksi perhari dan perminggu pada setiap toko, penulis menambahkan fitur databse disetiap toko. Hasil penelitian berupa rancangan aplikasi pembayaran transaksi terpadu berbasis digital. Tujuanya untuk menghilangkan pembayaran tunai, dan menggantinya dengan pembayaran nontunai.
Rancang Bangun Sistem Informasi Inventaris menggunakan Metode Prototype pada SMK Muhamnmadiyah 3 Pekanbaru
Authors: Putri Febyana , Koko Aryanto , Yayuri Amanda
Published: March 2024

SMK Muhammadiyah 3 adalah sebuah sekolah menengah kejuruan yang terletak di kota Pekanbaru. Tentunya, sekolah ini memiliki tujuan untuk mempersiapkan siswa nya agar menjadi tenaga kerja yang berkompeten dan siap untuk memasuki dunia kerja sesuai dengan bidang kejuruan yang telah dipilih. Untuk menunjang keberhasilan dari harapan yang ingin dicapai oleh sekolah, pastinya sekolah memerlukan SDM yang tercukupi, salah satu nya fasilitas yang tercukupi. Di SMK Muhammadiyah 3, terdapat beberapa sistem yang masih belum terpenuhi atau belum terdigitalisasi, seperti pencatatan inventaris barang di ruang jurusan. Penelitian ini bertujuan untuk membantu staf sarana dan prasarana dalam mengelola informasi mengenai data barang, jumlah barang, serta pembuatan laporan berbasis website dengan menggunakan Framework Laravel, bahasa pemrograman PHP, dan MYSQL sebagai database, untuk membangun sistem yang akan dikembangkan. Metode pengembangan prototype digunakan dalam penelitian ini untuk membantu dalam tahapan menyelesaikan permasalahan sehingga dibangun lah sebuah Sistem Informasi Inventaris. Sistem yang telah dibuat melalui tahap pengujian sistem dengan metode black box testing dan terbukti berjalan dengan baik. Hasil dari penelitian ini adalah sistem informasi inventaris barang diruang jurusan berbasis website di SMK Muhammadiyah 3 guna untuk di implementasikan di sekolah.
Analisis Sentimen Pengguna X Indonesia Terkait Kendaraan Listrik Menggunakan IndoBERT
Authors: Merdiansah Roni , Siska Siska , Ali Ridha Azhari
Published: March 2024

Penggunaan kendaraan listrik semakin menjadi perhatian utama dalam upaya mengurangi dampak negatif terhadap lingkungan. Dalam konteks Indonesia, analisis sentimen terhadap kendaraan listrik menjadi penting untuk memahami pandangan dan opini masyarakat terkait teknologi ramah lingkungan ini. Penelitian ini menggunakan metode IndoBERT untuk menganalisis sentimen pengguna X di Indonesia terhadap kendaraan listrik, dengan membandingkan kinerja model yang dilatih dengan dan tanpa data dari IndoNLU. Dua model berbeda dievaluasi menggunakan metrik evaluasi standar seperti akurasi, presisi, recall, dan F1-score. Tujuan penelitian ini adalah untuk mengidentifikasi dan memahami sentimen pengguna platform X terkait kendaraan listrik di Indonesia, serta untuk mengevaluasi kinerja model IndoBERT dalam memprediksi sentimen tersebut. Metode yang digunakan meliputi scraping data dari platform X, preprocessing data, labeling data, eksplorasi data, pemodelan, dan evaluasi. Hasil penelitian menunjukkan bahwa model yang dilatih dengan data IndoNLU memberikan kinerja yang lebih baik dalam memprediksi sentimen pada teks tweet, serta lebih konsisten dalam setiap epoch. Selain itu, model tersebut juga menunjukkan kemampuan yang lebih baik dalam memahami konteks teks, yang tercermin dalam uji coba teks baru. Dengan demikian, penelitian ini memberikan kontribusi penting dalam pemahaman terhadap pandangan masyarakat terkait kendaraan listrik di Indonesia. Hasilnya dapat digunakan sebagai dasar untuk pengembangan kebijakan, strategi pemasaran, dan pengembangan teknologi kendaraan listrik yang lebih ramah lingkungan di Indonesia.
Penerapan Data Mining Dalam Menentukan Tingkat Kedisiplinan Karyawan Perhotelan Menggunakan Algoritma K-Means Clustering
Authors: Marpaung Preddy , Febrian Ibnu , Putri Widia
Published: March 2024

Perhotelan merupakan salah satu bisnis usaha di bidang paruwisata. Salah satu perhotelan yang ada di Deli Serdang adalah Hotel Halay. Dimana selama ini dalam menentukan tingkat kedisplinan karyawannya hanya melalui observasi dan tafsiran manager, sehingga kurang efektif dan kurang professional dalam menentukan kedisplinan karyawannya. Tujuan dalam menentukan tingkat kedisiplinan karyawan adalah untuk meningkatkan pelayanan terbaik kepada pelanggan melalui para karyawan, sehinga dibuat penilaian tingkat kedisplinan kepada karyawannya untuk diberikan penghargaan dan pembinaan kepada karyawan yang kurang disiplin. Penentuan tingkat kedisplinan di tentukan ke dalam 3 cluster yaitu Sangat Baik (C1), Baik (C2), dan Cukup (C3). Algortitma yang diterapkan adalah algoritma k-meas clustering. Dimana hasil dari penerapan algoritma ini dari 10 karyawaman dapat mengasilkan Sangat Baik (C1) sebanyak 6 data, Baik (C2) sebanyak 2 data, dan Cukup (C3) sebanyak 2 data.  Sehingga dengan adanya hasil yang didapat, bisa membantu pihak  pehotelan untuk mengevaluasi para karyawannya setiap efisode.
Estimating cost efficiency and sources of inefficiency in paddy farming: A study in Vietnam’s Mekong Delta
Authors: Ho Phuc Trong , Hung Pham Xuan , Hoang Lieu Thi , Phuong Nguyen TM
Published: March 2024

The misuse of chemical fertilizers, pesticides and herbicides in rice cultivation is leading to low-quality outputs, high production costs, health issues and environmental problems (e.g., degraded soil quality, water pollution and increasing greenhouse gases). The efficient use of production inputs would be a feasible way to mitigate these issues. This paper employed a true random-effects model to measure cost efficiency and investigate the factors affecting cost inefficiency among Vietnamese rice producers. This study used the surveyed data of 350 rice households collected in the Mekong Delta, Vietnam. The findings of this research show that the mean cost efficiency score is 0.92 with a wide variation (0.26 – 0.99). This study indicates that there is still potential for inefficient rice producers to save production costs by improving their cost inefficiency. The study also reveals a positive relationship between cost inefficiency and farm size, natural disasters and rice diseases. This suggests that as farms grow, natural disasters and rice diseases become more prevalent and rice producers become increasingly incapable of managing input costs. This study suggests that supportive policies should focus on improving rice farmers’ skills to manage production inputs and deal with rice diseases and natural disasters to minimize rice production costs.
Analyzing the role of Facebook-based e-portfolio on motivation and performance in English as a second language learning
Authors: Chen Zhuo , Ramzan Muhammad
Published: March 2024

This study investigates the role of Facebook posts as online triggers for English as a Second Language (ESL) learner’ motivation and performance. The study explores the motivational dynamics of how Facebook language influences learning in the community by   exploring the interconnectedness of emotional linguistic strategies. A mixed-methods approach was adopted to collect Facebook posts and open coding and thematic coding techniques were employed to analyze the data. The participants were administered pre- and post-tests to collect their performance outcomes for t-tests. The findings reveal that Facebook posts about learning English as a second language (L2) provide primary motivation for learners and promote their performance. These posts are triggers for their L2 understanding and enhance their language learning motivation and performance. Their affirmation and agreement, sharing of personal experiences and testimonials, reflection, seeking advice and guidance work as projectors in the motivational strategies of ESL learners. Furthermore, motivation is facilitated by the use of attractive Facebook posts. Additionally, practical implications highlight the importance of creating supportive and engaging language learning environments. Further research is recommended to explore motivational dynamics in different digital contexts and platforms.
KEBIJAKAN PERIZINAN DI DAERAH PASCA PUTUSAN MAHKAMAH KONSTITUSI NOMOR 91/PUU-XVIII/2020
Authors: Bagus Moh , Nurmila Sari Helga
Published: March 2024

Penelitian ini bertujuan untuk menjawab dua problematika utama, yakni: Pelaksanaan perizinan berusaha di daerah pasca diundangkanya Undang-Undang Nomor 11 Tahun 2021 tentang Cipta Kerja dan Menakar politik hukum nasional terkait perizinan berusaha di daerah pasca diterbitkanya putusan Mahkamah Konstitusi Nomor: 91/PUU/XVIII/2020 serta memberikan rule model kebijakan yang dapat diambil oleh pemerintah daerah. Penelitian ini menggunakan metode penelitian hukum normatif (normative legal research) melalui pendekatan kasus (case approach) dan pendekatan perundang-undangan (statute approach). Hasil penelitian manyatakan bahwa pelaksanaan perizinan di daerah pasca keberlakuan UU Cipta Kerja mengikuti ketentuan dalam PP No. 5 Tahun 2021 dan PP No. 6 Tahun 2021. Perizinan dengan rezim UU Cipta Kerja berpangkal pada pendekatan berbasis risiko (risk based approach) dengan 4 (empat) kualifikasi risiko, yakni: risiko rendah, risiko menengah rendah, risiko menengah tinggi dan risiko tinggi. Secara politik hukum nasional dengan adanya Immendagri No. 68 Tahun 2021, maka daerah tetap mempedomani dan melaksanakan ketentuan UU Cipta Kerja beserta peraturan pelaksananya.
PENYELESAIAN PERKARA CAROK DALAM PERSPEKTIF HUKUM ADAT MASYARAKAT MADURA
Authors: Fathorrahim  , M. Sholehuddin
Published: March 2024

Budaya carok sebagai upaya penyelesaian sengketa di Madura yang menggunakan kekerasan memiliki arti yang berbeda bagi masyarakat umum dan masyarakat Madura. Bagi masyarakat Madura, carok merupakan pemulihan harga diri yang berhubungan dengan harta, tahta, dan wanita. Sedangkan, bagi masyarakat umum, tindakan ini tidak bisa dibenarkan karena merupakan tindakan main hakim sendiri dan bertentangan dengan hukum pidana yang berlaku. Penelitian ini dilakukan dengan tujuan mengetahui nilai-nilai budaya carok dan sejauh mana hukum pidana Indonesia dapat mengakomodir nilai-nilai budaya carok tersebut. Metode penelitian yang digunakan adalah penelitian empiris dngan pendekatan kualitatif. Hasil penelitian menunjukkan bahwa hukum negara mendominasi semua penyelesaian perkara carok berdasarkan prosedur dan proses yang bersifat baku dan formal, sedangkan kontruksi penyelesaian perkara carok didasarkan pada lima hal, yaitu: menghidupkan kembali nilai-nilai musyawarah, harus melibatkan kiai, eksistensi bejing tengka sebagai partner kiai dalam upaya penyelesaian perkara carok, pemberian uang untuk tahlilan dan kelangsungan hidup keluarga korban, serta eksistensi hukum negara yang menjustifikasi penyelesaian perkara carok yang dilakukan oleh kiai dan Bejing Tengka.
Bloom with a BLOOM (a computer model of a loom)
Authors: Andreev Tsvetelin
Published: March 2024

This article describes a computer model of a loom and a case study of a 10-year old child using the model to weave a real rug. The application of the model for weaving a real rug, the accompanying experiments and the involvement of the participants: the child, the master weaver, the parent and the teacher, show how technology can be used in such a manner as to make learning by doing and sharing its results happen in harmony with the ideas behind the STEAM education.
Проблемно-ориентиран подход при изучаване на прогресии
Authors: Вецева Евгения
Published: March 2024

В статията се анализират основни схващания за реализацията на проблемност при обучението по математика с цел повишаване на интереса и мотивацията на учащите, както и активизиране на творческите им способности. Предлагат се идеи за прилагане на проблемност при изучаване на прогресии. Включени са разнообразни примери за организиране на вътрешнопредметни и междупредметни връзки, нестандартни и творчески задачи, задачи от тип ребуси, задачи свързани с логическа организация на твърденията и пр., основна цел на които е да изграждат у учениците желание и умения за самостоятелно придобиване на знания.
Дидактически модели за въвеждане на основни понятия от комбинаториката
Authors: Георгиева Десислава
Published: March 2024

Предложени са две методически разработки на уводни теми от комбинаториката за общообразователна подготовка в училищния курс по математика. Демонстрира се въвеждане на понятията събиране и умножение на вероятности, пермутация, вариация и комбинация. Акцентира се на подпомогнато, осъзнато, индуктивно достигане до изводи и формули.
ABIES − лесен увод в професионалното програмиране
Authors: Папазов Явор
Published: March 2024

Въпреки значителния напредък в достъпността на образователните инструменти за преподаване на програмиране и компютърни науки през последните десетилетия, повечето от тези инструменти се опитват да адаптират процеса на програмиране, за да отговаря по-добре на обучението, като използват езици и платформи, които не се използват в индустриални условия (със забележителното изключение на Python) – Basic, Pascal, Logo и Scratch са някои от приложимите примери за езици за програмиране с доказана образователна стойност, които обаче не намират приложение в разработването на търговски, научен или държавен софтуер.
Изкуствен интелект − Логическо програмиране на Пролог
Authors: Стоянов Станимир , Табакова-Комсалова Венета
Published: March 2024

Предложеният курс запознава слушателите с необходимостта за изучаване и развитие на умения за работа с изкуствен интелект (ИИ) и адаптиране на образователната система по съответния начин. Разглеждат се основните подходи за представяне и обработка на знания, необходими за разработка на интелигентни системи във всички сфери на съвременния свят. Прави се преглед на знанията и уменията, които ще придобият участниците в курса. За практическите занимания се използва езикът за програмиране Пролог, който напоследък се радва на възроден интерес и е подходящ за работа с ”класическия изкуствен интелект“.
Design patterns over SOLID and GRASP principles in real projects
Authors: Damyanov Daniel , Hristov Atanas , Varbanov Zlatko
Published: March 2024

Design patterns (models) are repeatable and reusable constructions and solutions for common situations and problems to improve the quality of software systems. SOLID and GRASP are sets of design principles that are used in object-oriented software development. In this work we consider these solutions and principles and compare their (possibly combined) usage in diﬀerent cases.
A pilot conceptualisation of the data space ecosystems for cultural heritage
Authors: Sotirova-Valkova Kalina
Published: March 2024

The digital heritage sector is among the nine common European data spaces out- lined in the EU Data Act: Health, Industrial, Agriculture, Finance, Mobility, Green Deal, Energy, Public Administration, and Skills. The data space concept is complex, and being linked with the data ecosystem brings together methodologies and techniques from numerous domains: artiﬁcial intelligence (AI), text/data mining, data visualisation, mapping, image analysis, audio analysis, network analysis, and rights management. There is a need for clarifying data terminology in use for the GLAM ﬁeld and transferable methodology to strengthen its’ ongoing dataﬁcation and digital skill set. The paper oﬀers a comprehensive literature review (incl. EU Data (space) policy documents) on data spaces and data ecosystems aimed at (1) formulating the main challenges in data collection, data processing, and data maturity for heritage-related information systems and (2) justiﬁcation of the necessary mindset and digital skill set change for a mature museum. General conclusions are made as well as rec- ommendations for the Bulgarian GLAM sector.
Embedded assessment throughout the problem-based learning – a path to authentic learning experiences
Authors: Kirilova Borislava
Published: March 2024

This article examines the beneﬁts and challenges associated with Problem-Based Learning (PBL) as a teaching and assessment tool, a constructivist approach that promotes a more pragmatic and student-centered mode of assessment. A tangible illustration of the proposed assessment tool is presented. The study aims to analyze diﬀerent aspects of mathematical competence in line with the European Commission Framework for Lifelong Learning, such as critical thinking, practical application in authentic problems, and more eﬀective knowledge acquisition. Data were collected through direct classroom observations, open-ended questionnaires, surveys, and personal interviews. The methodology was applied to a sample of 60 students from American College of Soﬁa (ACS) who participated in project work instead of conventional testing. The results of the study revealed that assessing students’ progress through problem-based tasks not only enhances the development of students’ mathematical competencies compared to traditional methods, but also fosters lifelong learning skills.However, this approach requires a more signiﬁcant time commitment compared to tra- ditional testing.
Използване на изкуствен интелект – етични норми и приложение в подготовката на бъдещите учители
Authors: Павлова Наталия , Марчев Драгомир
Published: March 2024

Навлизането на изкуствения интелект в бита и работната сфера на масовия потребител предизвиква необходимостта от поставяне на рамки в използването му. Това е особено важно в областта на образованието, където възпитателният аспект е от ключово значение. В дадената работа са засегнати някои морално- етични въпроси при цитиране на съдържание, генерирано с помощта на изкуствен интелект. Представен е модел за справяне с плагиатството, при подпомагане на работата на студентите чрез използване на чатботове с изкуствен интелект.Дадени са примери за генериране и цитиране.
220 години от рождението на Карл Густав Якоб Якоб
Authors: Попиванов Петър
Published: March 2024

През 2024 г. отбелязваме 220-ия юбилей на великия немски математика К. Г. Якоби. В настоящата статия предлагаме кратки биографични бележки и фор- мулираме в 12 точки основните му постижения в областта на математическия анализ, механиката, вариационното смятане и др.
Kolmogorov, stochastics in Bulgaria, and probabilistic problems with unexpected solutions
Authors: Stoyanov Jordan M.
Published: March 2024

In this talk, I am going to share with the readers my memories of personal meetings with Andrey Nikolaevich Kolmogorov (1903–1987), the content of our conversations, and the fruitful consequences. The reader is familiar with, or could read, the timely prepared recent comprehensive paper [34], presented by N.M. Yanev at the 52nd Spring Conference of the UBM. Included here are several new details about Andrey Nikolaevich and the great inﬂuence of the Moscow Probability School on the development of Stochastics in Bulgaria. I have used MathSciNet and introduced the ‘Kolmogorov number’, a ‘collaboration distance’ between a mathematician and Kolmogorov, with a focus on Bulgarian stochasticians. I am writing about Kolmogorov’s approach to doing mathematics in general and the role of counterexamples. Discussed are two speciﬁc probabilistic problems which, according to him, are with most unusual solutions, ‘Skitovich-Darmois theorem’ and ‘Plackett problem’. Several related short stories and not well-known facts are presented.
Investigating the high-impact deformation behavior of induced-nano precipitation hardened in718 alloy
Authors: ONOVO Harrison Okechukwu , BODUDE Muideen Adebayo , ESEZOBOR David Ehigie , AKANO Thaddeus Tochukwu
Published: March 2024

Superalloys are the preferred materials for modern high-rotational complex components due to their exceptional ability to maintain critical properties such as strength, oxidation/corrosion resistance, even under extreme temperatures and dynamic impacts. This study investigates the dynamic impact response of nanoprecipitation-hardened 718 alloy (NPH-718 alloy) under various loading conditions. The wrought nickel-based NPH-718 alloy was transformed into a nanostructured state through a precise heat treatment process involving controlled cooling rates (28℃∙s‒1 to 30℃∙s‒1). A mechanical compression test, leading to failure, was employed to assess the alloy's ability to withstand dynamic impacts. The compressive dynamic behavior of the alloy at high strain rates (4000 s‒1 to 7500 s‒1) and temperatures ranging from ‒180℃ to 750℃ was evaluated using a custom-built direct impact Hopkinson pressure bar apparatus. The flow data obtained for NPH-718 alloy exhibited sensitivity to thermally activated processes. Consequently, as the temperature increased at a constant high loading rate, both flow stress and adiabatic effect increased. Conversely, at a constant deformation temperature, the flow characteristics exhibited an increase as the loading rate decreased. This study establishes key trends in the flow stress, adiabatic effect, temperature, and the strain rate sensitivities of NPH-718 alloy, offering valuable insights for design and performance evaluation purposes. It underscores the significant influence of temperature and strain rate on the flow behavior of NPH-718 alloy, further solidifying its reliability in demanding applications.
Bilateral transposed and impacted upper canines: case report
Authors: Bernardino Raíssa Marielly Parente , Gandini Marcia Regina Elisa Aparecida Schiavon , Gandini Alyssa Schiavon , Menezes Carolina Carmo de , Gandini Junior Luiz Gonzaga
Published: March 2024

The aim of the study was to report, through a clinical case, the treatment of bilaterally impacted upper canines. A 9-year-old patient presented with prolonged retention of deciduous canines. Radiographic analysis revealed bilateral and horizontally impacted canines. After extraction of the deciduous teeth and access to the impacted canines, a transpalatal bar associated with a cantilever was used for traction without compromising neighboring teeth. Due to the location and complexity of the case, the upper canines underwent transposition with the first premolars. The lower arch was aligned and exhibited diastemas, which were treated with elastomeric chains and bull loops for space closure. The treatment goals were achieved with excellence in aesthetics, function, and healthy periodontal conditions
Modelo para caracterização de séries de preços baseado em osciladores harmônicos acoplados
Authors: Oliveira Monique Rafaella Anunciação de , Magalhães Arthur Rodrigo Bosco de , Raad Lucélia Viviane Vaz
Published: March 2024

Um modelo baseado nas equações diferenciais que descrevem a dinâmica de um sistema físico composto por dois osciladores acoplados é apresentado para caracterizar séries de preços. A partir da discretização de tais equações, encontramos um modelo vetorial autorregressivo (VAR) de segunda ordem. Avaliamos o modelo nas séries de fechamento diários de duas ações relevantes do índice Ibovespa. A estacionariedade de tais séries foi averiguada pelo teste de Dickey-Fuller. Graficamente, verificamos que os resíduos resultantes da aplicação das séries no modelo não apresentam nenhum tipo de padrão.
Análise de viabilidade técnica e econômica para implantação de aerogerador em propriedades rurais de Cascavel, Londrina e Palmas-PR
Authors: Gnoatto Henrique , Sakata Rafael Dors , Souza Samuel Nelson Melegari
Published: March 2024

O Brasil apresenta recursos naturais favoráveis à exploração de energias limpas, tais como a eólica. O aumento do consumo e a crescente pressão política e ambiental para um desenvolvimento sustentável, tem feito com que o planejamento para as matrizes energéticas seja mais rigoroso quanto à utilização de fontes alternativas de energia. Este trabalho teve por objetivo o estudo de viabilidade técnica e econômica para a implantação de turbinas eólicas em propriedades rurais nas cidades de Cascavel, Londrina e Palmas, todas situadas no Estado do Paraná. As regiões para estudo foram escolhidas devido à localização geográfica e foram definidos três modelos de propriedades rurais, levando em consideração o consumo diário de energia elétrica. A implantação de aerogeradores mostrou-se tecnicamente viável nas propriedades rurais das cidades de Cascavel e Palmas, e inviável nas propriedades rurais de Londrina. Porém, todos os cenários da pesquisa foram considerados inviáveis economicamente.
Barreiras na adesão terapêutica de indivíduos em uso de anticoagulantes orais: protocolo de revisão de escopo
Authors: Queiroz Xênia Sheila Barbosa Aguiar , Lira Ana Luisa Brandão de Carvalho , Queiroz Hamon Edward Oliveira , Oliveira Simone Helena dos Santos , Sodré Nataly Lins , Santos Isabel Cristina Ramos Vieira , Bezerra Simone Maria Muniz da Silva
Published: March 2024

Para que novas estratégias sejam realizadas como auxílio na adesão ao tratamento com anticoagulantes oral, é necessário identificar as principais barreiras que dificultam essa adesão, para que então, esse novo método seja executado de forma a contribuir para o cuidado, por fornecer benefícios para mudanças na sua abordagem. Objetiva-se apresentar  um  protocolo  de  revisão  de  escopo  voltado  a mapear  na  literatura científica as principais barreiras para adesão ao tratamento medicamentoso em indivíduos que fazem uso de anticoagulantes oral. Trata-se de um Protocolo de revisão de escopo conduzido a partir da metodologia Joanna Briggs Institute (JBI), com utilização da extensão do checklist  PRISMA-ScR. A busca será realizada nas bases de dados LILACS, BDENF, CINAHAL, MEDLINE e PUBMED e literatura cinzenta. Os critérios de seleção serão baseados nos elementos da estratégia PCC (P –População: C: Conceito; C -Contexto). As  etapas  de  busca,  seleção  e  extração  de  dados  serão realizadas por dois revisores e em caso de divergência, um terceiro revisor será consultado. A seleção dos artigos será através do software Rayyan. Serão incluídos estudos sem restrição  de  idioma ou  de  acesso. Os  resultados possibilitarão identificar as principais barreiras para adesão ao tratamento medicamentoso em indivíduos que fazem uso de anticoagulantes oral e poderão auxiliar no mapeamento de melhores estratégias, como construção de instrumentos que auxiliem nesse gerenciamento trazendo melhores resultados na saúde do paciente que faz uso de anticoagulante oral.
The impact of college students' achievement motivation on subjective well-being: Self-efficacy as a mediating variable
Authors: He Yu Qing , Tang Fang Gui
Published: March 2024

Purpose: The purpose of this study is to analyze the factors affecting college students' subjective well-being and the relationship between research achievement motivation, self-efficacy  and emotional well-being among college students.

Design/Methodology/Approach: 1,082 students were selected from 10 universities in Guangxi Province using a convenience sampling method. Questionnaires were administered based on achievement motivation, self-efficacy   and subjective well-being scales. The data were analyzed using SPSS 24.0 and AMOS 22.0.

Findings: College students' achievement motivation has a significant positive effect on emotional well-being. Self-efficacy acts as a mediator in the relationship between achievement motivation and subjective well-being.

Conclusion: Achievement motivation can stimulate positive actions and efforts in college students enabling them to face challenges and difficulties more confidently. Approving activities and increased confidence enhance students' self-efficacy  improving their subjective well-being.

Research Limitations The interpretation of study results and inferences is constrained in sampling because of the time and expertise of the researchers.

Practical Implications: It is possible to effectively improve college students' subjective well-being by focusing on the development of achievement motivation, self-efficacy and social support.

Contribution to the Literature: This study further clarifies the influence of achievement motivation on subjective well-being and the mechanism of self-efficacy which is a supplement to the current research in this field at the same time. It also helps to enrich and perfect the research on achievement motivation, self-efficacy and subjective well-being of college students.
DIVERSITY OF H2A HISTONES AND THEIR IMPLICATIONS FOR NUCLEOSOME STRUCTURAL PROPERTIES
Authors: SINGH-PALCHEVSKAIA L. , SHAYTAN A.K.
Published: March 2024

Histone proteins are key epigenetic factors, which play an important role in chromatin dynamics and gene activity regulation. They are divided into two broad classes: canonical histones and their variants. Canonical histones are expressed mainly during the S-phase of the cell cycle, as they are involved in DNA packaging during cell division. Histone variants are histone genes that are expressed and regulate chromatin dynamics throughout the cell cycle. Due to the functional and species diversity, various families of histone variants are distinguished. Some proteins may diff er slightly from canonical histones, while others, on the contrary, may have many important structural and functional features that aff ect nucleosome stability and chromatin dynamics. In order to assess the variability of the H2A histone family and their role in nucleosome structure, we performed a bioinformatic analysis of the amino acid sequences of the H2A histone family. The clustering performed by the UPGMA method made it possible to reveal two main subfamilies of H2A proteins: short H2A and other H2A variants demonstrating highly conserved amino acid sequences. We also constructed and analyzed multiple alignments for various H2A histone subfamilies. It is important to note that the proteins of the short H2A subfamily are not only the least conserved within the H2A family, but also have features that signifi cantly aff ect the structural properties of the nucleosome. In addition, we performed a phylogenetic analysis of short H2A, which resulted in the identifi cation and characterization of individual clades on the phylogenetic tree for the variants H2A.B, H2A.P, H2A.Q, H2A.L.
KERATINOLYTIC POTENTIAL OF MICROMYCETE ASPERGILLUS CLAVATUS VKPM F-1593 AND COMPARISON OF ITS ENZYMES WITH THE COMMERCIAL KERATINASE PREPARATION
Authors: TIMORSHINA S.N. , POPOVA E.A. , KULESHOVA K.I. , AKYOL A.K. , OSMOLOVSKIY A.A.
Published: March 2024

Animal husbandry is a rapidly developing branch of agriculture, increasing the volume of production annually, and keratin-containing waste (feathers, bristles) make up the majority of all waste from this industry. The development of methods of environmentally friendly processing of such waste to obtain valuable resources (amino acids and oligopeptides) is an important mission of modern science, including biotechnology. One of the ways to dispose of animal husbandry waste that meets modern trends in the development of a green economy is the use of microorganisms and their enzymes. The possibility of obtaining keratinolytic enzymes of Aspergillus clavatus VKPM F-1593 under deep conditions with various sources of nitrogen and carbon, including with the growth of the producer on animal waste, was studied. The highest target activity (96.1 E) was achieved using mixed carbon and nitrogen sources: inorganic - sodium nitrate, easily digestible organic - fi sh meal hydrolysate and hard-toreach organic - ground chicken feather. Varying the content of various substrates in the composition of fermentation media allowed not only to regulate the level of proteolytic activity, but also to reach the peak of producer activity on diff erent days of cultivation. The specifi c keratinase activity of A. clavatus VKPM F-1593 (pI 9.3) to various protein substrates with the activity of a commercial proteinase K. Both enzymes showed a similar level of activity regarding most of the substrates used. However, protease A. clavatus VKPM F-1593 has a greater overall proteolytic activity, which confi rms the prospects of this culture for biodegradation of animal waste
HE EFFECT OF PROBENECID ON α-1-ADRENOCEPTOR STIMULATION INDUCED PROARRHYTHMIC CONDUCTION IN THE ATRIOVENTRICULAR NODE OF RAT HEART
Authors: VORONINA Y.A. , KUZMIN V.S.
Published: March 2024

Cardiac tissue contains adrenergic receptors (AR) not only of the beta type, but also of the alpha type (α-AR). Both types of ARs play signifi cant role in regulation of cardiomyocytes electrophysiology in diff erent parts of the heart, including the atrioventricular node (AVN). An augmentation of α1-AR mediated component of adrenergic signaling results in impaired conduction of excitation in the heart and onset of various rhythm disturbances including AVNassociated arrhythmias. The activation of α1-AR facilitates anionic transmembrane transport causing electrophysiological changes in myocytes. Current study is aimed to the investigation of the eff ects of anion/chloride blockade on α1-AR-mediated proarrhythmic alteration of AVN functioning. Functional characteristics of AVN including AVN conduction time, AVN refractoriness and the AVN conduction alterations were examined via recording of surface electrograms in Langendorff -perfused isolated rat heart (Wistar, 250 ± 30 g). Phenylephrine was used as α1-AR agonist. Probenecid demonstrating anion/chloride transmembrane conductance blocking activity was used to modify Phe-induced α1-AR-mediated eff ects in AVN. The activation of α1-AR by Phe results in a signifi cant increase in the duration of AV intervals (N = 10, p < 0.001) and eff ective refractory period (ERP) in the AVN (by 9.8% ± 1.2%, n = 10, p < 0.001). Also, Phe induces AV-blocks of conduction and oscillations in atrioventricular delay (N = 10) at the stimulation rates close to ERP. Probenecid signifi cantly reduces the magnitude of AVD oscillations during non-stationary conduction in the AV node. In addition, probenecid attenuates ERP prolongation caused by Phe (107 ± 4 ms, N = 6) and 114.2 ± 5.35 ms (N = 10) in presence of only Phe and Phe with probenecid, respectively, returning its values toward typical for normal conditions. In conclusion, probenecid maintains physiological mode of AVN conduction when α1-AR are stimulated. This also suggests that chloride ion channels and anion carriers may contribute to the α1-AR-mediated AVN arrhythmias.
OLIGORIBONUCLEOTIDE-CONTAINING NANOCOMPLEXES BASED ON AMINOPROPYLSILANOL NANOPARTICLES AS EFFECTIVE INHIBITORS OF INFLUENZA A VIRUS REPLICATION
Authors: REPKOVA M.N. , MAZURKOV O.YU. , FILIPPOVA E.I. , PROCENKO M.A. , MAZURKOVA N.A. , CHELOBANOV B.P. , LEVINA A.S. , ZARYTOVA V.F.
Published: March 2024

Titanium dioxide or aminopropylsilanol nanoparticles were shown to be effective vehicles for delivering oligodeoxyribonucleotides and deoxyribozymes to cells to affect target nucleic acids. In this paper, the proposed principle of the delivery has been implemented in relation to oligoribonucleotides (ORN), components of short interfering RNAs (siRNAs). It has been shown that the obtained ORN-containing nanocomplexes (Si~NH2 ⋅ ORN) based on aminopropylsilanol nanoparticles penetrate eukaryotic cells. These nanocomplexes have been investigated as agents for suppressing the replication of influenza A virus (IAV) in the cellular system. It has been shown that the ORN strands targeted to (+)RNA and (-)RNA of the IAV 5th segment reduces the titer of the virus by 99.7% and 98.4%, respectively. Thus, oligoribonucleotides in the Si~NH2 ⋅ ORN nanocomplexes effectively inhibit the replication of the influenza A virus.
Bioinformatic Analysis Strategy in Restriction Enzyme Selection for Indonesian Panulirus homarus Identification by PCR-RFLP
Authors: Indriatmoko Indriatmoko , Pancoro Adi
Published: March 2024

The spiny lobster (Panulirus homarus) is a valuable fishery commodity in Indonesia, particularly in its juvenile life form. However, identifying the early life forms of the spiny lobster can be challenging, as it exhibits similar morphological features compared to the juveniles of other Panilurid lobsters. Molecular-based identification, specifically DNA sequencing, is the best method for species identification, but it requires advanced instruments and is costly. An alternative method is proposed here, using the PCR-RFLP technique, which is low-cost, rapid, and has standard instrumentation requirements. The challenge with this method is selecting the appropriate restriction enzyme to determine the targeted species’ identity. This study proposes using the REfind (https://github.com/indriatmoko07/REfind), R package to select the best restriction enzyme for identifying P. homarus, applicable to other species. The bioinformatics workflow used in this study successfully identified BseSI or BmgI as the most suitable restriction enzymes among 739 restriction enzymes to differentiate P. homarus from other Panilurid species. This result was validated by employing a wet lab test using the BseSI enzyme and successfully validated the bioinformatics result. These findings may be useful for biologists in conducting various studies that require rapid, low-cost, and identification of specific species in the future.
Londres 38: La importancia de la visibilización del patrimonio cultural para el “no olvido”
Authors: Acevedo García Martha Patricia , Lykaris Carreño E. Alexandra
Published: March 2024

La casona ubicada en la calle Londres 38 en Santiago de Chile, representa la importancia de la lucha por la recuperación de espacios que permitan ser puntos de encuentro para el derecho a la memoria. Londres 38 visibiliza los crímenes de lesa humanidad (desaparición forzada, asesinato, tortura) cometidos durante la dictadura encabezada por Pinochet; un lugar polisémico, redimido por víctimas y colectivos que lograron recuperarlo como un Monumento Histórico parte del Patrimonio Cultural. Hoy se posiciona como un Espacio de Memorias al reabrir sus puertas en pro al derecho a la verdad, exigir el “no olvido” y para que “nunca más” se vuelvan a cometer este tipo de delitos. En este artículo presentamos en perspectiva analítica y contextual una discusión sobre la necesidad de promover la notoriedad de este patrimonio cultural chileno y su papel como espacio de memoria. Entre las conclusiones, destacamos tres tipos de funciones oriundas de su papel de «hacer ver» a saber: 1) su función histórica, como retrato del proceso histórico dictatorial; 2) su función política, como símbolo de resistencia; y, 3) su función educativa en el sentido profundo de la promoción de la vida en comunidad en contrapartida del individualismo.
Evaluation of the UNESCO-Associated Schools Project Network (ASPNet) in Teacher Education Institutions in the Philippines
Authors: Nava Lolita H. , Ochave Jesus A. , Romero Rene C. , Ruscoe Rita B. , Mabunga Ronald Allan S.
Published: March 2024

In preparation for the UNESCO ASPNet 50th Anniversary in 2003, a Global Review on the UNESCO ASPnet was conducted by a team of independent external evaluators from the Center for International Education and Research School of Education, University of Birmingham, United Kingdom in cooperation with UNESCO. The aforecited study sought to:
1. reinforce ASPnet's role in the 21st century particularly to improve the quality of education;
2. strengthen the four pillars of learning as advocated by the International Commission on Education; and
3. elaborate an ASPnet Medium-Term Strategy and the Plan of Action 2004-2008. An integral part of the review was a special study "Challenges Facing Formal Education at the Dawn of the 21st Century and the Enhanced Role of the UNESCO Associated Schools Project Network in Meeting Them" conducted by invited Faculties of Education/Teacher Training Institutions. The results of the study were discussed in the International Congress of Associated Schools Project Network in Auckland, New Zealand in August 2003. The UNESCO ASPnet based in Paris, France had invited the Philippine Normal University of Manila to collaborate and conduct a National Review of UNESCO ASPnet in the Philippines. After forming a research team from PNU, and holding a series of meetings and consultations, it was decided that a conference involving 12 Teacher Education Institutions (TEIs) active in ASPnet would present papers and explore recommendations through focus discussion. Dubbed as "UNESCO-ASPNet STAKEHOLDER'S FORUM", it was held from March 11-12, 2003 at the Library Conference Room, Philippine Normal University. In conducting the review, due attention was paid to three main documents: i) ASPNet Practical Manual; ii) Dakar Framework for Action - Education For All and in particular goal number six concerning quality education and the regional strategy included in this document concerning the region; and iii) the Report of the International Commission on Education for the 21st Century.