bluuebunny/crossref_metadata_2025 huggingface dataset:
Ensino de Biologia em Cursos Pré-Vestibulares Comunitários: uma revisão bibliográfica
Authors: Messina Luana Servo Benevides , Santos Maria Cristina Ferreira dos
Published: October 2024

Os cursos pré-vestibulares comunitários, sociais e populares são iniciativas que visam proporcionar oportunidades para pessoas de diversas origens sociais para o ingresso no ensino superior. Esse artigo trata do ensino de Biologia em cursos pré-vestibulares comunitários no estado do Rio de Janeiro, com o objetivo de identificar temáticas e materiais didáticos utilizados por docentes destes cursos. A pesquisa adotou uma abordagem qualitativa, analisando produções acadêmicas entre 2012 e 2023, publicadas nas Atas do ENPEC, Anais do ENEBIO e no Catálogo de Teses e Dissertações da CAPES. No levantamento foram localizados 12 trabalhos, dos quais foram selecionados sete, que relacionam o ensino de Biologia a temáticas e materiais didáticos. A análise dessas publicações apontou que os professores de Biologia desses cursos utilizavam uma variedade de materiais didáticos, incluindo apostilas, livros didáticos, mapas, vídeos, slides, coleções, modelos didáticos e artigos sobre experimentos em laboratório. Quanto às temáticas abordadas, estas estavam relacionadas aos conhecimentos exigidos no Exame Nacional do Ensino Médio (ENEM) nos últimos anos e ao cotidiano dos alunos. A utilização de diferentes materiais didáticos buscava tornar o ensino de Biologia mais atrativo para os estudantes, ao mesmo tempo em que os preparava para os exames vestibulares.
Panorama do uso da cultura Maker na revista Química Nova na Escola: uma revisão de literatura
Authors: Mendes Isabela Fernanda Marques Soares , Teodoro Paulo Vitor
Published: October 2024

As metodologias ativas constituem um campo promissor de discussão dentro das escolas de Educação Básica. O uso delas propõem a participação ativa dos(as) estudantes no processo de ensino-aprendizagem, por meio de um arcabouço de estratégias didático-pedagógicas, tais como: sala de aula invertida, aprendizagem baseada em projetos e em problemas, gamificação, rotação por estação de aprendizagem e a cultura maker. Nesse sentido, este texto objetiva apresentar uma análise dos textos publicados nos 45 volumes da revista Química Nova na Escola, de 1995 a maio de 2023, identificando as produções que abordam dimensões teórico-práticas do uso de metodologias ativas no ensino de Ciências/Química, especialmente na perspectiva da cultura maker. Verificamos que de todos os textos publicados até maio de 2023, aproximadamente 6,4% tratam sobre o uso de metodologias ativas, no contexto de jogos e estudos de casos, mas não foi identificado nenhum artigo sobre a cultura maker. Percebemos que o uso de novas metodologias de ensino está presente nas salas de aulas, mas ainda é pouco explorado nas pesquisas que se enveredam sobre a Educação em Química.
O uso do software PhyPhox em atividades experimentais de Ciências
Authors: Pastorio Dioni Paulo
Published: October 2024

Neste trabalho, apresenta-se uma discussão sobre a evolução das Tecnologias Digitais de Informação e Comunicação (TDIC) na sociedade contemporânea, partindo de uma comparação entre a comunicação humana em diferentes fases históricas, a fim de justificar a importância da reflexão e utilização das TDIC para dentro da escola e em especial dos processos de ensino e aprendizagem. A literatura da área de Ensino aponta que as TDIC se apresentam como ferramentas de interesse do professor em sua prática profissional, uma vez que são instrumentos próximos da realidade dos estudantes que adentram a educação básica brasileira. Partindo dessa premissa, busca-se ainda fomentar o diálogo entre a utilização das TDIC como instrumentos culturais, utilizando o referencial histórico-cultural de Vigotski. Por fim, discute-se a apresenta-se um software enquanto recurso didático para atividades didáticas experimentais investigativas, o qual tem potencial para o desenvolvimento das Funções Psicológicas Superiores.
Deep Learning for Predictive Analytics in Indian Agriculture: A Case Study of Crop Yield Prediction
Authors: Dr. Suresh Patil,
Published: October 2024

Predictive analytics, powered by deep learning, is transforming Indian agriculture by improving crop yield prediction and resource management. This paper presents a deep learning-based model that leverages Convolutional Neural Networks (CNN) and Long Short-Term Memory (LSTM) networks to predict crop yields in various Indian agro-climatic zones. By incorporating weather data, soil health information, and historical crop yield data, the model aims to provide farmers with accurate, timely insights for better decision-making. The study also highlights the challenges of data collection in rural India, the need for region-specific models, and the socio-economic benefits of AI-driven agricultural solutions.
Blockchain and AI Integration for Enhancing Cloud Security in Indian Enterprises
Authors: Dr. Vishal Chandra
Published: October 2024

This paper investigates the integration of Blockchain technology and Artificial Intelligence (AI) to enhance cloud security in Indian enterprises. The study explores how Blockchain’s decentralized nature can secure cloud infrastructures, while AI models such as anomaly detection and reinforcement learning provide real-time threat monitoring and mitigation. By analyzing case studies from Indian companies in sectors like IT, finance, and healthcare, the paper showcases the practical benefits of combining Blockchain with AI for enhancing data security, reducing vulnerabilities, and improving regulatory compliance.
AI-Enhanced Supply Chain Optimization: A Study of Indian E-Commerce Sector
Authors: Dr. Pooja Verma
Published: October 2024

This paper investigates the role of Artificial Intelligence (AI) in optimizing supply chains in India's rapidly growing e-commerce sector. AI-powered algorithms such as Machine Learning (ML) and Reinforcement Learning (RL) are increasingly being deployed to enhance supply chain efficiency by predicting demand, optimizing inventory, and improving last-mile delivery. The study analyzes the performance of AI models like Decision Trees, Random Forest, and Deep Q-Networks (DQN) in supply chain management, focusing on real-time decision-making capabilities and cost reduction. Case studies from leading Indian e-commerce companies, including Flipkart and Amazon India, are presented to demonstrate the impact of AI on reducing operational inefficiencies and improving customer satisfaction. The research also explores the challenges of implementing AI in supply chain operations in India, including data integration issues, infrastructure limitations, and workforce adaptation to AI technologies. Finally, the paper discusses future trends in AI-driven supply chain management, such as autonomous vehicles and drone deliveries, which hold immense potential in the Indian context.
Deep Reinforcement Learning for Smart Traffic Management in Indian Cities
Authors: Dr. Arjun Rao
Published: October 2024

Indian cities are plagued by traffic congestion, leading to significant economic and environmental costs. This paper explores the application of Deep Reinforcement Learning (DRL) to develop smart traffic management systems capable of optimizing traffic flow in real-time. The study evaluates the performance of DRL algorithms such as Deep Q-Networks (DQN) and Proximal Policy Optimization (PPO) in managing traffic signals, routing vehicles, and reducing congestion in cities like Delhi, Mumbai, and Bangalore. The research utilizes traffic simulation models that integrate DRL with real-time traffic data from sensors and cameras. Case studies from smart traffic management pilot projects in Indian cities are presented to highlight the effectiveness of these systems in reducing travel time, fuel consumption, and air pollution. The paper also discusses the challenges of deploying DRL-based traffic management systems in India, including infrastructure limitations, data accuracy, and scalability. Additionally, the ethical implications of using AI for traffic management, such as privacy concerns and algorithmic bias, are considered
Mujeres en el ejecutivo
Authors: Fernández Poncela Anna María
Published: October 2024

Tras varios años en los cuales pocas mujeres se postularon a la presidencia, y prácticamente ninguna por formaciones políticas con posibilidades de victoria, en las elecciones del 2024 hay dos.           
En el poder ejecutivo, además de la figura presidencial están las secretarías que componen el gabinete. En este espacio también ha habido poca presencia de las mujeres, en el mundo y en México. En la legislación, prácticas e incluso estudio sobre mujeres y política, parece haber sido más favorecido el poder legislativo que los acercamientos a los gabinetes presidenciales.
Aquí se pasa revista a la composición por género de los gabinetes según datos internacionales y para América Latina, y se profundiza en los gabinetes en la historia de México y en la actualidad. Se aborda también el caso de las gobernadoras. Es una aproximación panorámica, cuantitativa y también reflexiva, que tiene lugar a través de bibliografía e información documental.
Como hallazgo es posible afirmar que el poder ejecutivo es un ámbito con reducida participación de mujeres en el mundo, no obstante, en algunos países como el caso mexicano, en los últimos años ha habido un aumento significativo, fruto de la época, las luchas históricas de las mujeres, y las legislaciones favorables en la actualidad.
JUS COGENS NO CONTEXTO DA PANDEMIA ORIUNDA DA COVID-19: uma análise hipotética da consideração do direito à saúde
Authors: Enes Wilson Machado
Published: October 2024

O presente artigo tem por objetivo a análise da possibilidade de consideração do direito à saúde como um jus cogens no cenário da pandemia oriunda da Covid-19. Nesse sentido, o texto objetiva a descrição da criação do conceito de jus cogens e de direito à saúde, a análise deste nas Constituições de países anteriormente selecionados e a comparação com as políticas de Estado adotadas em um contexto de contenção à proliferação do vírus nesses países. O propósito, portanto, é responder se, diante desse pragmático, o direito à saúde poderia ser encarado como um jus cogens.
REFERÊNCIAS E IMPLICAÇÕES ÉTICO-POLÍTICAS DO PENSAMENTO DOUTRINÁRIO NA PROFISSIONALIZAÇÃO DO SERVIÇO SOCIAL NO BRASIL
Authors: De Sá Juan
Published: October 2024

O presente artigo discute a influência do humanismo cristão na gênese da profissão de Serviço Social no Brasil, a partir dos desdobramentos do Movimento de Reação Católica e as suas principais referências teórico-metodológicas. Trata-se de uma análise qualitativa dos fundamentos do pensamento conservador na profissão e suas respectivas implicações ético-políticas nas respostas dadas às expressões da “questão social”, a partir de uma pesquisa bibliográfica. Apreendeu-se que ocorre uma refuncionalização das práticas caritativas e filantrópicas e do ideal humanista cristão durante o processo de profissionalização, com base na relação de continuidade coexistente com a relação de ruptura, apresentadas por Netto (2011). Um projeto estrutural foi endossado pela Igreja Católica, empenhada teórica e praticamente num projeto de recuperação de sua influência ideológica medieval, disseminando elementos de influência doutrinária na formação dos primeiros assistentes sociais que possuem rebatimentos no serviço social até a atualidade.
LEADING FACTORS FOR FAILING THE QUALIFYING EXAMINATION AMONG CRIMINOLOGY STUDENTS IN CAVITE STATE UNIVERSITY-BACOOR CITY CAMPUS: BASIS FOR INTERVENTION PROGRAM
Authors: Shawn Michael B. Aldea  , Arman C. Maribojo  , James E. Dalis  , Jimmy M. Caltino
Published: October 2024

This study aims to assess the leading factors for failing the qualifying examinations among criminology students at Cavite State University- Bacoor City Campus to serve as a basis for an intervention program. Quantitative methods were used in this study, it emphasized object measurements and statistical, mathematical, or numerical analysis of data collected through polls, questionnaires, and surveys, or by manipulating pre-existing statistical data and generalizing it across groups of people or to explain a particular phenomenon. Specifically, the descriptive survey method was used in this study to facilitate the investigation of social phenomena through gathering of opinion, observation and perception. Hence, the leading factors for failing the qualifying examination among criminology students in Cavite State University – Bacoor City Campus in terms of the following variables in terms of Inadequate study, Unable to understand Subject Matter, Insufficient Review, Previous Failures in Academic Subjects, Weak Strategies.
KEYWORDS: Qualifying Examination of Criminology Students, Inadequate study, Unable to understand Subject Matter, Insufficient Review, Previous Failures in Academic Subjects, Weak Strategies
ANALISIS KEMAMPUAN LITERASI MATEMATIKA DALAM MENYELESAIKAN SOAL CERITA DITINJAU DARI GAYA BELAJAR
Authors: Si Ayu Yogi Iswari  , I Gusti Ayu Putu Arya Wulandari  , I Made Dharma Atmaja
Published: October 2024

Kemampuan Literasi Matematika merupakan kemampuan seseorang dalam merumuskan, menggunakan dan menafsirkan matematika dalam berbagai konteks, termasuk di dalamnya bernalar secara matematis dalam menjelaskan serta memprediksi fenomena. Kemampuan literasi matematika sangat penting dimiliki oleh siswa karena dapat membantu siswa untuk memahami peran atau kegunaan matematika dalam kehidupan sehari-hari dan membuat penilaian serta keputusan secara rasional dan logis. Penelitian ini  merupakan  penelitian  deskriptif  kualitatif  yang  bertujuan untuk menganalisis kemampuan literasi matematika siswa dalam menyelesaikan soal cerita SPLDV yang ditinjau dari gaya belajar masing-masing siswa.  Subjek penelitian  ini  yaitu  siswa  kelas  IX A SMP Negeri 14 Denpasar yang berjumlah 30 orang siswa. Adapun sampel penelitian menggunakan teknik purposive sampling sehingga jumlah sampel yang digunakan dalam penelitian ini berjumlah 3 orang siswa. Teknik pengumpulan data yang digunakan yaitu pengisian angket gaya belajar, tes kemampuan literasi menggunakan soal cerita SPLDV dan wawancara. Data dianalisis secara deskriptif untuk menggambarkan hasil tes literasi matematika siswa. Hasil penelitian menunjukkan bahwa  Subjek Gaya belajar visual dengan persentase 40 % bisa melewati seluruh proses dalam menyelesaikan masalah matematika, mulai dari memahami permasalahan, menerapkan konsep matematika, hingga menafsirkan hasil matematika.Subjek yeng memiliki gaya belajar auditorial dengan persentase 30 % mampu melewati satu fase literasi yaitu merumuskan konsep matematika dengan baik. Sedangkan Kemampuan literasi matematika siswa dengan gaya belajar kinestetik dengan persentase 30 % dalam menyelesaikan soal cerita SPLDV dikategorikan cukup karena melalui 2 fase literasi matematika yaitu merumuskan masalah matematika dan menggunakan konsep matematika dalam penyelesaian masalah.
ANALISIS SIKAP MAHASISWA CALON GURU TERHADAP KONSERVASI MANGROVE SEBAGAI SUMBER BELAJAR
Authors: Della Rahmadani  , Dewa Ayu Sri Ratnani  , Ni Wayan Ekayanti
Published: October 2024

Sikap mahasiswa calon guru memiliki peranan yang penting bagi keberadaan konservasi magrove, terutama di Hutan Tahura Ngurah Rai Bali.  Tujuan dari penelitian ini untuk menganalisis sikap mahasiswa calon guru terhadap konservasi magrove sebagai sumber belajar. Penelitian dilaksanakan pada bulan Februari hingga Juni 2022. Tempat penelitian dilaksanakan di Fakultas Keguruan dan Ilmu Pendidikan Universitas Mahasaraswati Denpasar secara daring (dalam jaringan) dengan membagikan link google form yang disebar melalui aplikasi whatsapp.  Jenis penelitian ini adalah penelitian kualitatif dengan mengadopsi model Miles and Huberman. Apabila jawaban yang diwawancarai setelah dianalisis belum memuaskan, maka peneliti akan melanjutkan pertanyaan lagi sampai dianggap kredibel. Hasil penelitian angket sikap menunjukkan bahwa perbedaan selisih persentase sikap kognitif, afektif dan behaviour  memiliki rentang nilai 78,00 % - 81,23%, dimana sikap kognitif dan behaviour  memiliki kategori sangat baik karena mahasiswa calon guru memiliki pengetahuan yang kreatif dan dapat diterapkan melalui perilaku sehari-hari. Sikap afektif memiliki kategori baik karena mahasiswa calon guru memiliki rasa peduli terhadap konservasi magrove. Simpulan dari penelitian ini adalah sikap kognitif dan behaviour  memiliki kategori sama yaitu sangat baik karena mahasiswa calon guru memiliki pengetahuan yang kreatif dan dapat diterapkan melalui perilaku sehari-hari. Sedangkan sikap afektif memiliki kategori baik, karena mahasiswa calon guru memiliki rasa peduli terhadap konservasi magrove.
PENERAPAN PROBLEM-BASED LEARNING UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS MATERI HEREDITAS SISWA SMA
Authors: Sang Putu Kaler Surata  , I Wayan Mardikayasa  , Helmalinda Taus
Published: October 2024

Penelitian ini bertujuan untuk meningkatkan kemampuan berpikir kritis siswa pada mata pelajaran Biologi khususnya hereditas manusia melalui penerapan Problem-Based Learning (PBL). Penelitian ini menggunakan metode Penelitian Tindakan Kelas (PTK) selama dua siklus yang melibatkan 25 siswa kelas XII MIA 1 SMA N 1 SOA. Data dikumpulkan melalui pretest, posttest, dan observasi. Hasil penelitian menunjukkan adanya peningkatan yang signifikan pada kemampuan berpikir kritis siswa setelah penerapan PBL, dengan rata-rata nilai posttest yang semakin meningkat pada setiap siklusnya. PBL terbukti efektif dalam memotivasi siswa dan meningkatkan keterlibatan mereka dalam belajar. Kesimpulannya, PBL dapat diandalkan sebagai metode pengajaran untuk meningkatkan kemampuan analisis pada materi pelajaran yang kompleks. Studi ini merekomendasikan penggunaan PBL yang lebih luas dan berkelanjutan dalam pendidikan biologi.
CONTEXTUAL DISTANCE TEACHING TO IMPROVE TOURIST DRIVERS' ENGLISH LANGUAGE EXPRESSION
Authors: Wardana I Ketut
Published: October 2024

This study aimed to assess the effectiveness of Contextual Distance Teaching (CDT) in improving driver’s English language expression and enhancing motivation, while also evaluating its significant influence on their English proficiency. Utilizing an action research approach conducted via the WhatsApp online platform, this study engaged 10 tourist drivers associated with the Bali Transport group, aged between 22 and 50. The study comprised two cycles, each consisting of three sessions. Data collection involved administering tests and questionnaires, including pretest, post-test 1, and post-test 2. Analysis was conducted using descriptive statistics and paired sample t-tests. The initial findings indicate that CDT effectively enhances the language expression of drivers in service-related contexts. The average pretest score, initially categorized as "poor" at 39, improved to 65 in post-test 1 and further increased to 75.8 in post-test 2, now categorized as "fair.", The main score of the questionnaire was 4.4 of 0-5 Likert scale implying the drivers had positive motivation and perception on the strategy apllied. The second statistic finding indicated a significant difference in the mean between the pre-test (Sig. and the post-test 1 (0.000 < 0.05) and post-test 2 (0.000 < 0.05). This study suggests that the implementation of CBT has a positive influence on reducing the number of language expression errors made by drivers as adult learners, leading to better English proficiency.
Hubungan Pengetahuan Ibu Nifas terhadap Perawatan Luka Perineum
Authors: Tridiyawati Feva
Published: October 2024

Menurut WHO tahun 2013 AKI di USA yaitu 28 per 100.000 KH, AKI di negeria yaitu 560 per 100.000 KH, di India 190 per 100.000 KH, di Malaysia 29 per 100.000 KH. Menurut SDKI angka kematian ibu AKI 90% akibat komplikasi selama kehamilan, persalinan, dan nifas. Luka perineum yang tidak ditangani dengan baik akan menimbulkan komplikasi, seperti kehilangan darah karena melakukan episiotomy terlalu dini. Infeksi terkontaminasi dengan urine dan feses, dispareunia, dan hematoma lokal yang menyebabkan infeksi. Berdasarkan studi pendahuluan yang di lakukan di Puksesmas Duren Sawit didapatkan 40% ibu dengan pengetahuan kurang tentang penyembuhan luka perineum. Untuk mengetahui hubungan pengetahuan ibu nifas terhadap perawatan luka perineum di puskesmas duren sawit. Metode Penelitian yang di gunakan adalah deskriptif. Populasi dalam penelitian ini adalah seluruh ibu nifas yang datang di puskesmas duren sawit Jakarta pada bulan Mei 2015 dengan jumlah sampel sebanyak 33 orang. Berdasarkan hasil penelitian hubungan pengetahaun ibu nifas terhadap perawatan luka perineum di puskesmas duren sawit tahun 2017 adalah dengan pengetahuan ibu nifas menunjukan hasil uji statistic chi-square diperoleh nilai p. 0,001 (p.value < 0,05 ) yang berarti Ho ditolak dan Ha diterima artinya ada hubungan yang bermakna antara perawatan luka perineum dengan pengetahuan ibu nifas. Dari hasil penelitian menunjukan adanya hubungan yang bermakna anatar pengetahuan ibu nifas terhadap perawatan luka perineum. Di mohon untuk petugas kesehatan agar lebih meningkatkan penyuluhan dan konseling terhadap perwatan luka perineum dan dampak yang terjadi jika tidak melakukan perawatan luka perineum.
Más allá del Tecovirimat: La búsqueda de nuevos tratamientos para la viruela del simio
Authors: Aguilar-Gamboa Franklin Rómulo
Published: October 2024

Tecovirimat es un fármaco antiviral promisorio para el tratamiento de la viruela del mono. Aunque no está aprobado específicamente para esta enfermedad, se está utilizando en Estados Unidos, Canadá, el Reino Unido y partes de Europa para casos graves o de alto riesgo a través de protocolos de investigación. Su mecanismo de acción implica bloquear la interacción de la proteína VP37 viral con proteínas celulares necesarias para la salida del virus. Las vacunas contra la viruela también se usan contra el virus del mono por su similitud genética, destacando JYNNEOS y ACAM2000. No obstante, se requieren más estudios para determinar la eficacia y optimizar las dosis del Tecovirimat, considerando que su uso dirigido podría generar diversificación genética en el virus. La evidencia sugiere que el uso dirigido de fármacos y vacunas aunado al patrón actual de distribución de casos principalmente en la población de hombres que tienen sexo con hombres ejerce una fuerte presión selectiva, por lo que es crucial contar con múltiples alternativas terapéuticas y de prevención para hacer frente a la evolución viral y garantizar el control a largo plazo.
Lophomonas sp. patógeno infrecuente en aspirado traqueal y lavado broncoalveolar humano
Authors: Toro-Bernal Berardo Julián
Published: October 2024

En humanos, es una enfermedad parasitaria poco frecuente, encontrándose principalmente en el tracto respiratorio, senos paranasales y vías urinarias principalmente de pacientes inmunosuprimidos. El diagnóstico se establece por la identificación del protozoo en muestras como aspirados traqueales o lavados broncoalveolares mediante la observación microscópica en el examen directo o mediante técnicas moleculares. Cabe destacar que se debe realizar una diferenciación entre el microorganismo con las células epiteliales bronquiales ciliadas por sus características similares en forma, disposición de cilios y núcleos; lo que facilita su confusión en las muestras en fresco. El parásito presenta diferencias en movimiento y forma de los cilios en comparación con las células. La tinción de Leifson ayuda a distinguir la forma columnar, núcleos rojos con citoplasma azul y los cilios de las células epiteliales bronquiales y permite distinguirlas del protozoo.
Regeneración pulmonar: un futuro esperanzador
Authors: Coaguila-Cusicanqui Luis Angel , Navarro-Avellaneda Jennifer Smith , Peralta Santa-Cruz Miguel Alonso
Published: October 2024

La regeneración pulmonar es un proceso vital mediante el cual los pulmonesrestauran su estructura y función trassufrir daños. Este proceso es esencial no solo para la recuperación de lesiones agudas, como las causadas por infecciones severas, sino también para la preservación a largo plazo de la función respiratoria. Las células madre y células progenitoras son producidas para reparar y reemplazar tejidos dañados, lo que asegura que los pulmones continúen realizando su función esencial de intercambio de gases. La regeneración pulmonar es un área de gran interés científico debido a su potencial para mejorar la calidad de vida de millones de personas afectadas por enfermedades pulmonares agudas y crónicas.
Hamiltonians of Bipartite Walks
Authors: Chen Qiuting , Godsil Chris , Sobchuk Mariia , Zhan Hanmeng
Published: October 2024

In this paper, we introduce a discrete quantum walk model called bipartite walks. Bipartite walks include many known discrete quantum walk models, like Grover’s walks, vertex-face walks. For the transition matrix of a quantum walk, there is a Hamiltonian associated with it. We will study the Hamiltonians of the bipartite walks. Let $S$ be a skew-symmetric matrix. We are mainly interested in the Hamiltonians of the form $iS$. We show that the Hamiltonian can be written as $iS$ if and only if the adjacency matrix of the bipartite graph is invertible. We show that Grover’s walks and vertex-face walks are special cases of bipartite walks. Via the Hamiltonians, phenomena of bipartite walks lead to phenomena of continuous walks. We show in detail how we use bipartite walks on paths to construct universal perfect state transfer in continuous walks.
Random Generation of Subgroups of the Modular Group with a Fixed Isomorphism Type
Authors: Bassino Frédérique , Nicaud Cyril , Weil Pascal
Published: October 2024

We show how to efficiently count and generate uniformly at random finitely generated subgroups of the modular group $\textsf{PSL}(2,\mathbb{Z})$ of a given isomorphism type. The method to achieve these results relies on a natural map of independent interest, which associates with any finitely generated subgroup of $\textsf{PSL}(2,\mathbb{Z})$ a graph which we call its silhouette, and which can be interpreted as a conjugacy class of free finite index subgroups of $\textsf{PSL}(2,\mathbb{Z})$.
The Bright Side of Simple Heuristics for the TSP
Authors: Frieze Alan , Pegden Wesley
Published: October 2024

The greedy and nearest-neighbor TSP heuristics can both have $\log n$ approximation factors from optimal in worst case, even just for $n$ points in Euclidean space. In this note, we show that this approximation factor is only realized when the optimal tour is unusually short. In particular, for points from any fixed $d$-Ahlfor's regular metric space (which includes any $d$-manifold like the $d$-cube $[0,1]^d$ in the case $d$ is an integer but also fractals of dimension $d$ when $d$ is real-valued), our results imply that the greedy and nearest-neighbor heuristics have additive errors from optimal on the order of the optimal tour length through random points in the same space, for $d>1$.
Combinatorics of $(m,n)$-Word Lattices
Authors: Mühle Henri
Published: October 2024

We study the $(m,n)$-word lattices recently introduced by V. Pilaud and D. Poliakova in their study of generalized Hochschild polytopes. We prove that these lattices are extremal and constructable by interval doublings. Moreover, we describe further combinatorial properties of these lattices, such as their cardinality, their canonical join representations and their Galois graphs.
Estimation of production rate distribution by overhaul periods of the wells
Authors:   Oil-Gas Scientifik Research Project Institute, Azerbaijan Republic, Ahmadov I.Z. , Taghiyeva S.E. ,   Oil-Gas Scientifik Research Project Institute, Azerbaijan Republic
Published: October 2024

This article examines the issues of the distribution of production capacity over the actual intervals of the overhaul period of the wells under consideration. Production rates and overhaul intervals of wells are the main technical and economic indicators which are of great importance for increasing production and improving the efficiency of well stock operation in general, especially at the late stages of field development. On the basis of actual field data ranges of oil and water flow rates and values of overhaul period of wells of Balakhany-Sabunchu-Ramana field have been analyzed. Plots of distribution of flow rates and relative total production for all actual intervals of overhaul period were plotted. Mathematical models of distribution of production indicators by overhaul of wells have been obtained with the help of computer program. The results of the research allow to reveal regularities and to estimate production capacity of the considered well stock under the given operating conditions.
10.37474/0365-8554/2024-03-19-22
Authors:   Azerbaijan State University Oil and Industry, Gasanova N.A.
Published: October 2024

The article considers the application of mathematical methods in studying the influence of individual regime parameters (specific pressure, pressing, holding time and pressing temperature) on the quality of manufactured parts. At the same time, plastic parts made of various materials used in oilfield equipment (covers, oil deflectors, gearboxes, pumping units, pump housing covers, etc.) were used as experimental objects for experiments. Optimal modes are recommended for use in the production of plastic parts for oilfield equipment. The study of the joint effect of all technological parameters on the accuracy of manufacturing individual elements of plastic parts is a complex task, and its solution, as for smooth plastic parts, is possible only with the use of mathematical modeling.
Preparation of monoalkyl (C8-C12) phenol-formaldehyde oligomers functionalized with imidazolines based on acids isolated from soybean oil and polyamines
Authors:   Institute of Petrochemical Processes of Azerbaijan Republic, Abdullayeva N.R. , Amiraslanova M.N. ,   Institute of Petrochemical Processes of Azerbaijan Republic, Aliyeva L.I. ,   Institute of Petrochemical Processes of Azerbaijan Republic, Rustamov R.A. ,   Institute of Petrochemical Processes of Azerbaijan Republic, Ahmadbayova S.F. ,   Institute of Petrochemical Processes of Azerbaijan Republic, Aliyeva Sh.R. ,   Institute of Petrochemical Processes of Azerbaijan Republic, Isayeva P.E. ,   Institute of Petrochemical Processes of Azerbaijan Republic
Published: October 2024

Research has been carried out on the synthesis of phenol-formaldehyde oligomers modified with nitrogen-containing organic compounds for the purpose of their use as anti-corrosion additives in mineral oils. Compared to organic acids obtained by multi-stage transformations, the production of nitrogenous compounds based on fatty acids of plant origin implements the use of more reliable sources of raw materials based on natural resources. In order to expand the range of these compounds, the synthesis of phenol-formaldehyde oligomers modified with imidazolines based on fatty acids isolated from soybean oil and polyamines was carried out. In order to ensure the complete solubility of phenolic compounds in mineral oils, monoalkylphenols containing C8-C12 alkyl groups in the para position were used. The structure of monoalkyl (C8-C12) phenol-formaldehyde oligomers functionalized with imidazolines was studied in comparison with the initial components in the wave frequency range of 600–4000 cm-1 on a LUMOS “BRUKER” IR Fourier microscope made in Germany. The structure and physicochemical parameters of the obtained products were determined. Research on the use of synthesized compounds as anticorrosion additives for mineral oils was continued, satisfactory results were obtained.
Increasing the efficiency of ventilation of the Gadir mine
Authors:   “Geotechnological Problems of Oil, Gas and Chemistry” SRI, Azerbaijan Republic, Ismayilov R.T.
Published: October 2024

The article is dedicated to the study of effective ventilation of underground mines on the example of the Gadir mine. As is known, the lack of effective ventilation in underground mines makes mining operations difficult and poses a threat to miners’ health. Therefore, it is necessary to pay special attention to the effectiv ventilation of underground mine workings. The Gadir deposit, located in the territory of the Republic of Azerbaijan, is of great strategic importance. Development of the deposit is carried out by the underground method. The article provides brief information about the mine, and describes the methods of ventilation of the mine workings of the Gadir mine. The effect of natural draft on the ventilation of the mine is described, and also the consumption of electricity for ventilation of underground mine workings, and overcoming aerodynamic resistance is calculated. Finally, the results were discussed. It has been determined that a natural draft has a positive effect on ventilation is winter period. Also, it has been determined that the consumption of electricity to overcome the aerodynamic resistance of underground mine workings is insignificant.
Study of electric field influence on adsorption and desorption of water soluble surface-active matters
Authors:   Institute of Oil and Gas of Azerbaijan Republic, Allakhverdiyeva R.G.
Published: October 2024

This article focuses on electric filed influence on dynamic adsorption and desorption of different class water soluble surface-active matters (SAM). Non-iogenic alphend, cation-active dmabah and anionic-active sulfonic acid are used as SAM. It has been defined the permanent current passing through solutions of these SAM doesn’t influence on value of their interphase tension on border with hydrocarbon liquid. It has been determined adsorption activity of SAM on surface of quartz adsorbent depends upon current type. Presence of permanent current value of maximum alphenol adsorption decreases while influence of alternating current on model increases adsorption. Maximum adsorption of cation-active SAM on adsorbent surface can be observed by presence of permanent current and its minimum value – by lack of electric filed. In case of anionic-active sulfonic acid field of alternating and permanent current provides growth of adsorption value. Desorbtion of molecule of non-ionogenic and anionic-active SAM increases under condition of permanent and alternating current while molecules of cation-active – practically never change.
Time and mechanism of formation of mud volcanoes in the South Caspian basin according to seismic data
Authors:   Institute of Oil and Gas of Azerbaijan Republic, Yusubov N.P. , Guliyev I.S. ,   National Academy of Sciences of Azerbaijan, I. Soto Juan ,   University of Texas in Austin, USA
Published: October 2024

There are 277 mud volcanoes located in the South Caspian basin and the Apsheron-Gobustan periclinal trough and the Lower Kura depression that open to it. On land there are 177 mud volcanic structures, from which steam, water, mud, gas and oil are constantly erupting at approximately 500 points. Mud volcanoes located in the Caspian Sea (about 100) also play an important role in the degassing (mainly methane) of the sedimentary layer of the earth’s crust. Based on the results of geological and geophysical research, it has been established that almost all mud volcanoes discovered on the territory of Azerbaijan are associated with hydrocarbon deposits. In the Oligocene – Lower Miocene, mainly in the Maikop time, a thick clayey stratum (Maikop) - source rocks – accumulated in the South Caspian depression. At the end of the Miocene, there was a sharp drop in erosion levels in this basin. As a result of the activity of several river systems (Pleo-Volga, Paleo-Kura, Paleo-Pirsagat, Paleo-Amu Darya) over the Maikop clay deposits, a system of alternating layers of low and high density was formed with a total thickness of sediments of eight kilometers or more. The Maikop clay formations buried under this multilayer system, possessing the properties of a non-Newtonian fluid, created intrusions in the overlying environment, which at subsequent stages of development of the sedimentation basin became eruptive channels of mud volcanoes. The results of research using 3D seismic data made it possible to identify the mechanism of formation of mud volcanism, which, according to the authors, is associated with the migration of hydrocarbons from oil and gas source rocks to reservoir rocks, with the channels of mud volcanoes being considered as the main migration routes. Geological interpretation of seismic data shows that the formation of mud volcanoes in the South Caspian basin supposedly began from the beginning of the Miocene and continued in parallel during subsequent periods of development of the sedimentation basin. As the thickness of the sedimentary cover increased, mud volcanoes periodically became active.
Optically active components of oil from the deepwater Gunashli field
Authors:   Institute of Petrochemical Processes of Azerbaijan Republic, Mammadbayli E.H.
Published: October 2024

The article presents the results of study of deep-water Gunashli oil’s optically active components. Oil is separated into 50 oC fractions, after studying the physicochemical properties of the resulting fractions, they are dearomatized by liquid chromatographic adsorption, as well as polar and non-polar solvents. The physicochemical properties, optical activity and chiroptic properties were studied, as well as the structural composition of the obtained naphthene-paraffin hydrocarbons was studied by IR spectroscopic analysis. The highest properties of optical activity are observed in naphthene-paraffin hydrocarbons, which boil away in the temperature range of 400–450 oC. The obtained results are very important in the selection of petroleum components, obtaining their narrow fractions, as well as the identification or isolation of optically active substances.
Efikasi Diri Akademik dan Tingkat Stres pada Mahasiswa Peserta Merdeka Belajar Kampus Merdeka
Authors: Annisa Julia Zulkarnain Gani  , Narastri Insan Utami
Published: October 2024

Education is an essential part of an individual's life, and a significant initiative is the freedom of learning independent campus program. This government policy grants students the freedom to study outside their major for three semesters. However, this freedom has led to various issues, causing stress among participating students. One factor that can help address this stress is academic self-efficacy. This study aims to investigate the relationship between academic self-efficacy and stress levels among students in the among students participating in the freedom of learning independent campus. The hypothesis proposed is that there is a negative relationship between academic self-efficacy and stress levels. The study involves 156 students participating in the program. Data collection used an academic self-efficacy scale and a stress level scale. The data analysis technique used is the Pearson correlation. Based on the data analysis, the correlation coefficient (rxy) = -0.609 (p < 0.05) was obtained. The results indicate a negative relationship between academic self-efficacy and stress levels. From the calculation of the coefficient of determination (R2), it is found that academic self-efficacy contributes 37.1% to stress levels. Meanwhile, 62.9% of the factors influencing stress levels in students are due to other factors
Trombosis de vena epigástrica con extensión a vena escrotal: reporte de caso
Authors: Camelo Pardo Gianmarco , Rivero Rodríguez Wilmer , Delgado Caballero Silvia Patricia , Pinzón Vargas Sebastián , Bueno Prato Nancy Karol
Published: October 2024

Se presenta el caso de un paciente masculino sin antecedentes patológicos de importancia clínica con dolor abdominal irradiado a región genital, a quien se le realizó un diagnóstico incidental por ecografía Doppler de trombosis venosa espontánea en la vena epigástrica, con extensión a la vena escrotal. Posteriormente, requirió tratamiento anticoagulante. La enfermedad tromboembólica es una patología con complicaciones cardiovasculares. Su etiología es multifactorial y la ecografía Doppler fue el método diagnóstico de elección. En este reporte se presenta un paciente sin antecedentes de importancia, con cuadro de dolor abdominal inespecífico y hallazgos de trombosis en la vena epigástrica, con extensión a vena escrotal. Se realizaron estudios complementarios con valores de anticoagulante lúpico altos, lo cual permite incluir esta patología en el diagnóstico diferencial del dolor abdominal.
Digital Drone Education in Sarawak: Enhancing STEM Learning through Hands-on Training for School Students
Authors: Sze San Nah , Phang Piau , Tiong Wei King , Chiew Kang Leng , Wee Bui Lin , Goh Say Leng , Abu Bakar Sofia Akmal , Hardi Richki
Published: October 2024

In Sarawak, concerns about low STEM enrolment, digital inclusivity gaps for rural children, and the transition from digital consumption to digital creation led to the introduction of the Drone Education Program. Participants began with foundational drone operation training, advancing to capturing images and videos. Subsequently, they were acquainted with elementary photo and video editing techniques, enabling them to enhance their drone-generated content. The aim of this research is to gauge the impact of the Drone Education Program on refining drone operations, bolstering digital editing competencies, and stimulating STEM engagement in students. In our methodology, we employed tailored pre- and post-surveys for evaluation, and younger students provided feedback via an emoji-based survey. Further analytical methods encompassed non-parametric tests, Exploratory Factor Analysis (EFA), and linear mixed-effect modelling. Results indicated significant post-intervention improvements in the targeted skills. The EFA grouped 21 Likert items into five distinct learning domains. Notable insights include district-wise variances in learning outcomes and the influential role of gender. The initiative showcases promise in confronting Sarawak's educational barriers, championing digital inclusivity, and preparing a digitally proficient generation.
Implementation of Technology in Cash Waqf: A Structured Literature Review
Authors: Hasbulah Muhamad Husni , Shuib Mohd Sollehudin , Asni Fathullah , Ahmad Khalilullah Amin , Hashom Hasrul , Mustafa Wan Azani , Syamsuri
Published: October 2024

This structured literature review focuses on the implementation of technology in the context of cash waqf. The issue under consideration pertains to the necessity of conducting a thorough evaluation and integration of current scholarly investigations on the utilization of technology in the context of cash waqf. To address this, a systematic approach is employed, involving the collection and synthesis of relevant articles obtained from three databases (SCOPUS, ECONBIZ, and Mendeley). The findings of this study demonstrate the diverse methods in which technology is being incorporated into the cash waqf sector, encompassing digital platforms that facilitate donations as well as the utilization of cutting-edge financial instruments such as blockchain. The synthesis of the existing literature highlights the potential of technology to bring about significant improvements in the efficiency, transparency, and scope of cash waqf programs. In summary, this comprehensive analysis sheds light on the dynamic progression of cash waqf by examining its relationship with technology. It provides valuable perspectives on present patterns and potential avenues for further investigation and advancement in the crucial convergence of Islamic finance and contemporary technology.
Bibliometric Computational Mapping Analysis of Publications on Virtual Reality Technology and Fashion Industry Using Vosviewer
Authors: Pawitan Zakiah , Pradja Barra Purnama , Taswadi Taswadi , Fetrianggi Ramadita , Argani Palupi
Published: October 2024

This study examines the evolution of the fashion industry in virtual reality research through a bibliometric approach with computational mapping analysis using VOSviewer. Article data is taken from the Google Scholar database using a reference management application and sorts only journal articles that are analyzed. Article titles and abstracts are used to guide the search process with reference to the keywords "Fashion Design" and "Virtual Reality". It found 989 articles that were considered relevant. The study period used as study material is Google Scholar indexed articles for the last 5 years (2019 to 2023). The results showed that by using fashion design and virtual reality as keywords resulted in 3 big terms that showed the biggest area that has been researched, the terms are: fashion industry, model, and reality technology. The term "fashion industry" is associated with 38 links with a total link strength of 81. The term "reality technology" has 42 links with a total link strength of 125 and the term "art" has 25 links with a total link strength of 60. The results of the analysis of the development of the fashion industry and virtual reality publications in the last 5 years show a progressive increase. In 2020-2022, it increased sharply from 159 in 2020 to a very popular 322 articles in 2022. The year 2023, although only running for half a year, has shown a figure of more than half of 2022. The results of the investigation show that there are still great opportunities for exploration of smart textile and smart fashion-themed research, especially when it comes to virtual technology.
Quantum Entanglement in Nonlinear Coupler with Raman Process
Authors: M. A. Ibrahim Abdel-Baset , Mohd Hanapi Mohd Syafiq , Alrub Ahmad Musleh , Choudhury Pankaj Kumar
Published: October 2024

This paper examines the possible quantum entanglement generated in a coupler system consisting of two waveguides, where one waveguide is nonlinear and Raman-active, while the other waveguide only undergoes linear processes. The analytical-perturbative method is employed to investigate the production of entangled states in the given system. The Hillery-Zubairy criterion is employed to examine the possible quantum entanglement between the two fundamental pump modes propagating in both waveguides. We explore the generation of quantum entanglement under different initial conditions and critical design parameters. The simulation results suggest a continuous entanglement that remains until a particular distance of interaction is reached. As the linear coupling parameter increases, the relationship between the maximum reachable distance for entanglement and the degree of entanglement becomes more complex. The study reveals that entanglement experiences significant fluctuations when there is a substantial frequency mismatch between the modes.
Evaluating the Horizon of Renewable Power: A Comprehensive Review of Floating Photovoltaic Systems' Performance and Technologies
Authors: Mohd Yusop Zulkifli , Ibrahim Siti Atirah , Daud Muhamad Zalani , Suyono Hadi
Published: October 2024

This detailed review underscores the significant potential of floating photovoltaic (FPV) systems in fostering a sustainable energy future. It evaluates the efficiencies, applications, and environmental impacts of different FPV technologies, illustrating that FPVs are a feasible solution to the global energy crisis. The review particularly highlights hybrid FPV systems, which excel in maximizing energy production while minimizing ecological impacts. It advocates for the adoption and continuous improvement of FPV technologies, emphasizing that FPVs provide a way to meet rising global energy demands and align with the imperative for environmentally sustainable energy solutions.