bluuebunny/crossref_metadata_2025 huggingface dataset:
The Effect of Environmental, Social, & Governance (ESG) Disclosure and Tax Avoidance on Cost of Capital with Firm Size as a Moderating Variable
Authors: Faisal Pradana Ades
Published: October 2024

The purpose of this study is to examine the effect of Environmental, Social, and Governance (ESG) disclosure and tax avoidance on the cost of capital, with firm size serving as a moderating variable. The population of this study consists of all companies listed on the Indonesia Stock Exchange (IDX) that have been included in the SRI-KEHATI index at least once, focusing on the 2018-2021 period. The sample was obtained through a purposive sampling method, and a total of 121 companies were included in the analysis. The results of the study show that ESG disclosure has a negative effect on the cost of capital, indicating that companies with better ESG practices can reduce their cost of capital. Conversely, tax avoidance was found to have a positive effect on the cost of capital, suggesting that companies engaging in tax avoidance face higher costs of capital due to the perceived risks or uncertainties related to their tax practices. Additionally, firm size was found to strengthen the relationship between ESG disclosure and tax avoidance on the cost of capital, indicating that larger firms experience more pronounced effects of ESG practices and tax strategies on their capital costs. This research contributes to the understanding of how ESG disclosure and tax strategies influence financing costs, especially for larger firms in the Indonesian market.
Deciphering Corporate Financial Metamorphosis: A Comprehensive Analysis of Corporate Financial Performances Pre and Post Acquisition
Authors: Rafikawaty Rafikawaty , Hertina Dede
Published: October 2024

This study aims to analyze potential differences in the financial performance of acquiring companies before and after acquisitions, focusing on Liquidity Ratios (Current Ratio and Quick Ratio), Profitability Ratios (Return on Assets Ratio and Net Profit Margin Ratio), Solvency Ratios (Debt to Equity Ratio and Debt to Assets Ratio), Activity Ratio (Total Assets Turnover Ratio and Fixed Assets Turnover Ratio), and Market Ratio (Earning per Share Ratio and Price Earnings Ratio). The research methodology involves a Quantitative Descriptive and Comparative approach, along with an Event Study comparing the financial performance of companies three years before and after the acquisition. Statistical tests, including Sample Paired t-Test and Wilcoxon Signed Rank Test, were conducted using the EViews application on seven acquiring companies listed on the IDX from 2017 to 2023. The findings indicate a significant difference in the company's financial performance before and after the acquisition, specifically in terms of Return on Assets, while the other financial ratios showed no significant differences before and after the acquisition is conducted. The implications of this study are expected to provide in-depth knowledge about the significance of differences in the company's financial performance before and after the acquisition, which will serve as a basis for decision making for investors and public in general.
Relationship between Bitcoin and ASEAN 6 foreign exchange rate markets
Authors:   University of Finance and Marketing, Vietnam, Ngô Thái Hưng , Lê Vũ Ngọc Nga , Trần Tiến Thảo Nguyên , Nguyễn Thị Ngọc Châu , Huỳnh Ngọc Mỹ Hương , Lâm Thanh Thủy
Published: October 2024

This study highlights the nexus between Bitcoin and foreign exchange markets in ASEAN 6 countries, including Vietnam, Thailand, Singapore, Indonesia, Malaysia, and Philippines, from 2018 to 2023, utilizing the spillover index and the spectral Granger causality test. The findings indicate that Bitcoin and the foreign exchange markets co-moved over time, and the connectedness between the markets increased significantly during the COVID 19 pandemic, the European energy crisis, and global inflation in 2023. The total spillover index reaches 13.4%, suggesting the connection between market returns is relatively low. Indonesia, Thailand, Vietnam, and Thailand are receivers, while Bitcoin, Malaysia, the Philippines, and Singapore are transmitters. The results of the Granger test illustrate that there exists a one-way causality running from Bitcoin to Malaysia, Vietnam, Thailand, from the Philippines to Bitcoin, and a two-way association between Indonesia and Bitcoin in the medium and long term and Singapore and Bitcoin in the long term. These results are valuable information for investors, stakeholders, and policymakers to stabilize the foreign exchange market.
The impact of the cash conversion cycle on profitability in listed enterprises in Vietnam
Authors:   Hanoi University of Industry, Nguyễn Thị Xuân Hồng
Published: October 2024

The cash conversion cycle is one of the indicators used to evaluate the efficiency of working capital management in the enterprise. This article researches the impact of the cash conversion cycle on business profitability. The article collected unbalanced data on the financial statements of 1,531 listed enterprises in Vietnam in the period 2015 2022. The author used the generalized least squares method (GLS) to test the impact of the cash conversion cycle and some control variables on the profitability of listed enterprises. The results show that the cash conversion cycle affects all three profitability indicators in an inversely proportional direction; some control variables affect profitability indicators in different directions and at different levels of significance. Based on the results, the author had some recommendations to shorten the inventory turnover time, receivables turnover time and manage the payable well, therefore, improving profitability in listed enterprises in Vietnam.
The impact of perceived risk on tourists' social word-of-mouth regarding Nha Trang as a destination: The mediating role of destination image and satisfaction
Authors:   HCMC University of Industry and Trade, Trần Thị Xuân Viên , Hà Nam Khánh Giao , Tạ Văn Thành ,   Vietnam Aviation Academy,   University of Finance-Marketing
Published: October 2024

The study analyzes the impact of perceived risk on tourists' social word-of-mouth regarding the Nha Trang tourist destination, while also examining the mediating role of destination image and tourist satisfaction. A qualitative research method was used to assess the appropriateness of the measurement scale. Subsequently, hypotheses were tested using a quantitative research method with a sample size of 520, collected through quota and snowball sampling methods. The research findings reveal that: (1) Perceived risk negatively affects destination image; (2) Destination image positively influences tourist satisfaction; (3) Tourist satisfaction and Destination image positively influence social media word of mouth. Additionally, the results highlight the mediating role of destination image in the relationship between perceived risk and tourist satisfaction, as well as the mediating role of tourist satisfaction in the relationship between destination image and social media word of mouth. These findings provide both theoretical and practical contributions to enhancing the understanding of perceived risk, destination image, satisfaction, and tourists' social media word of mouth.
Discussion on the legal aspect of letter of credit transactions and recommendations for Vietnam
Authors:   Banking Academy of Vietnam, Nguyễn Văn Tiến
Published: October 2024

Foreign economic activities in general, foreign trading and international payment activities in particular, are regulated by a complex system of legal documents, including both the national and international legal system. To avoid disputes and risks arising in letter of credit (LC) transactions, the involved parties must thoroughly understand the legal substance of all the relevant regulating documents, in which the most important one is the international trading rules and guidelines issued by the International Chamber of Commerce (ICC). As these ICC documents are not mandatory and do not include sanctions for handling disputes, this article will discuss deeply on the legal substance of these documents with a focus on issues relating to LC transactions, aiming to provide recommendations for involved parties.
Remote Work and Job Satisfaction: A Case Study of IT Professionals
Authors: Usama Saleem  , Nouman Aamir Khan
Published: October 2024

This study aims to assess the impact of remote work on employee performance, focusing on various parameters such as company provided autonomy, supportive organizational culture for working from home, communication, and self-discipline. Rapid technological changes necessitate that organizations foster a culture promoting new sustainable development strategies amid global competition. The primary purpose of this study is to examine the role of remote work in the job performance of employees in the IT industry. To achieve this, a quantitative study was conducted using a systematic questionnaire distributed to employees working in the IT industry in Pakistan via a web-based data collection system using Google Forms. A sample of 238 respondents was collected and used for data analysis from employees working in IT organizations in major cities of Pakistan. The acquired data was used to perform descriptive and statistical analysis in SPSS software. The results revealed that remote work positively influences job performance. The study also discusses theoretical and practical implications and future recommendations in the context of Pakistan.
Entrevista a Jessica Narváez Ruiz · Gestora social y cultural de la comuidad Evitar. Representante del grupo de "Jóvenes Progreso y Futuro de Evitar" (JOPROFUMEV)
Authors: Vallim Aline , Mahecha Quintero Carolina
Published: October 2024

Esta entrevista fue realizada en Evitar, un municipio del departamento de Bolívar en Colombia, el 21 de agosto de 2022
Entrevista a Omar Olvera Calderón y Hugo Morales Zendejas
Authors: Prieto Olivares Diego
Published: October 2024

Esta entrevista fue realizada en la ciudad de Toulouse, Francia, el 23 de julio de 2023 en el marco del Work Package 3. Los entrevistados, Omar Olvera Calderón y Hugo Morales Zendejas, son los encargados de crear, escribir, componer y poner en escena la comedia musical de TransMigrARTS.
La fotografía como mediadora · Experiencia con jóvenes migrantes en Madrid
Authors: Córdoba Triana Adriana , Laforgue Thierry , SV Flys Elena
Published: October 2024

Este texto tiene como propósito poner en evidencia las acciones que se realizaron a partir de los intereses que emergieron con un grupo de adolescentes y jóvenes durante la implementación de un prototipo de taller en el marco del WP4 del proyecto TransMigrARTS. Esta experiencia relata lo vivenciado por las personas co-implementadoras con una población migrante que retó de manera permanente el espacio de taller a causa de su interés por asuntos diferentes a los juegos escénicos. Por este motivo, se le dio un giro a las actividades propuestas en el prototipo: “Confiando en el otro y en el grupo: un espacio seguro y de acogida”, cuyo objetivo era afianzar las interacciones entre quienes integran un grupo, promoviendo el trabajo en equipo y la confianza.
Transformation-Induced Plasticity In Additively Manufactured Tool Steel
Authors: Eskandari Sabzi Hossein , Hamilton Andrew , Hao Xinjiang , Rivera-Díaz-del-Castillo Pedro E.J.
Published: October 2024

There are significant challenges in the additive manufacturing (AM) of high-performance steels susceptible to transformation-induced plasticity (TRIP) effect. This is a mechanically-induced martensitic transformation of retained austenite distributed in a ferritic or martensitic matrix. Austenite stabilisation and retention at room temperature is of paramount significance to promote TRIP. It was discovered that austenite could be effectively retained due to carbide precipitation during AM. The ultimate tensile strength then increases significantly as a result of this metastable austenite's gradual transformation into ε-martensite under straining, while exhibiting a high yield strength. The partitioning of stress and strain, which is constantly changing as the hard martensite forms, is the cause of this rise, as revealed by microscopy techniques and X-ray diffraction.
Study of the Influence of the Porosity of Stellite 6 Powder on the Microstructure and Wear Properties of Coatings Processed by Laser Cladding Technology
Authors: Azpeleta María , Alvarez Piera , Ortiz Igor , Arizmendiarrieta Asier , Montoya-Zapata Diego
Published: October 2024

In the context of large-scale parts manufacturing with laser cladding technology, the quality of the raw material conditions the quality of the coatings produced using this technology. The existing literature lists the different quality problems that occur in the process of laser cladding technology or focuses on the characterization of the powder feedstock. However, the relationship between the quality of the powder metal and the final properties of the manufactured parts has been poorly studied. Moreover, there is a need of defining permissible ranges of the measured variables (e.g., porosity and N content) that guarantee high quality parts. As a response to such a shortcoming, in this paper, we study the influence of the porosity of Stellite 6 powder on the microstructure and wear properties of laser cladding coatings. We compare two batches from two different suppliers with a noticeable difference in porosity level. We manufactured 3 prisms with each batch under the same processing conditions. The results of our experiments show that the powder with a higher level of porosity generates coatings with higher levels of porosity. These results demonstrate that the porosity of the raw material influences the quality, microstructure, mechanical performance and wear properties of the final part. These results also emphasize the need for common quality standards on the powder feedstock produced by different suppliers.
Lessons Learnt - Development Of Additive Manufacturing For Soft Magnetic Electric Motor Components
Authors: Lindroos T. , Kinos T. , Antikainen A. , Riipinen T. , Manninen A. , Bertinetti A. , Odden J. O. , Pippuri-Mäkeläinen J.
Published: October 2024

Clean and smart electrification is at the core of the European Green Deal since it is definitively a key option for society’s decarbonization and for tackling climate change. The electrification transformation of processes and mobility is creating an unparalleled demand for components like electric machines. This, concurrently, is causing a huge push towards higher efficiencies and power densities, lighter weights, and customized solutions for electric machines, meaning that innovation in the field is required to fulfil future demands. Additive Manufacturing (AM) is seen as an enabler in producing components for novel electric machine architectures with designs and performance unattainable with conventional manufacturing. In this study we summarize development of Laser Powder Bed Fusion route for soft magnetic electric motor components starting from tailoring of soft magnetic material for L-PBF process and ending to demonstration of electric motor stator and rotor components. The paper highlights our findings and challenges to tackle. The effect of alloying elements, L-PBF parameters, and post-processing routines on magnetic performance are discussed
Modelling Surface Densification Rolling of Powder Metal Gears
Authors: Scholzen Philipp , Andersson Michael
Published: October 2024

The powder metallurgical (PM) process chain is a great opportunity for gear manufacturing regarding both material and energy consumption when compared to the conventional gear production. However, the remaining porosity after pressing and sintering results in a lower load capacity of the tooth flank and tooth root. Therefore, PM gears for high performance applications are surface densified to increase the density of the surface of the tooth. \n This paper presents a new general approach of modelling the surface densification rolling process of PM gears. Using the finite element analysis, the material behavior, geometry, and process kinematics are modelled. The method leads to a prediction of the densification profile as well as geometry and can be used as a tool to optimize the rolling process. The results are evaluated and discussed in relation to the process parameters and material behavior.
Comprehensive Review of DC-DC Converters for PV Connected Grid System
Authors: R Siva Nagini
Published: October 2024

Renewable Energy Systems (RES) harness natural sources like sunlight, wind, and water to generate sustainable power. They decrease dependency on fossil fuels and minimize greenhouse gas emissions, promoting environmental sustainability and energy security. Photovoltaic (PV) systems are a prominent application of renewable energy, converting sunlight directly into electricity. However, the efficiency of PV systems adversely affected by varying environmental conditions and climatic changes, leading to fluctuations in voltage output. To address these challenges and optimize energy extraction, the integration of DC-DC converters into PV system is essential. In this paper an exhaustive review of various DC-DC converters technologies used in PV connected grid systems, including SEPIC converter, Buck boost converter, Boost converter, and CUK converter. Every converter plays a crucial role in managing and stabilizing voltage levels by adjusting the output voltage to meet the needs of the grid or load. A comparative analysis of recent research highlights various methodologies for enhancing converter performance. The review includes studies on ultra gain converters, Fourth order boost DC-DC converter (FBDC), high step up interleaved converters, and Quasi Z source converters. Each approach presents unique benefits and challenges, reflecting ongoing efforts to optimize DC-DC conversion in PV systems. The paper concludes with insights into the future direction of converter technologies and their role in enhance the stability and efficiency of PV connected systems.
HD-REGNET: Heart Disease Prediction Using REGNET in Image Processing
Authors: R Suhasini , G Jini mol
Published: October 2024

Abnormal functionality of the heart due to any cause is known as heart disease. It primarily affects older persons. Every year, almost six out of ten persons diagnosed with heart diseases are above the age of 65. In this paper a novel HD RegNet have been proposed for heart disease prediction using CXR images. Initial the input CXR images are pre processed using Adaptive Gaussian Star Filtering. Then the pre processed images are subjected into RegNet for extracting the features. The best features are selected using Tyrannosaurus optimization Algorithm. Finally the normal and abnormal classes of heart diseases classified utilizing the Deep Neural Network (DNN). The CHD dataset are utilized to evaluate the performance of the developed work interms of performance metrics such as accuracy, recall and precision. The proposed HD RegNet attains an accuracy rate of 99.53% in the normal class and 99.37% in the abnormal class. It achieves an overall accuracy rate 0.37%, 0.52% and 0.75% compared to the existing methods such as RFRF ILM [12], LU Net [17] and CNN & Bi LSTM [18] respectively.
Revolutionizing Palm Print Recognition with Advanced Sift-Based Feature Analysis Techniques
Authors: C Anitha Mary
Published: October 2024

Palm print recognition has emerged as a robust biometric authentication method due to its distinctiveness and reliability. This paper explores the revolution in palm print recognition driven by advanced feature analysis techniques, focusing on the integration of sophisticated preprocessing and feature extraction and classification methods. Effective palm print recognition relies heavily on preprocessing technique such as noise reduction, contrast enhancement, and image filtering. Thus, this study emphasize the role of Gabor filter excel in image processing by effectively capturing spatial frequency and orientation information. The paper highlights the use of Local Ternary Patterns (LTrP) and Local Modified Ternary Patterns (LMTrP) to enhance the accuracy and robustness of feature extraction in palm print matching and identification. Additionally, the Scale Invariant Feature Transform (SIFT) used to further strengthens the system by providing further enhancing the reliability and rotation. Moreover, this paper implemented by using python programming language. Overall, this work provides insights into their combined impact on the accuracy and reliability of palm print recognition systems, marking a significant advancement in biometric authentication technology.
Welche Mutter, welcher Schutz?
Authors: Böcker Julia
Published: October 2024

Bei Fehlgeburten besteht derzeit kein Anspruch auf gesetzlichen Mutterschutz. Viele fordern deshalb einen gestaffelten Mutterschutz, zuletzt auch mit einer (unzulässigen) Verfassungsbeschwerde. Aus soziologischer Perspektive gehe ich im Folgenden diskursiven Implikationen dieser Forderung nach. Ein Mutterschutz nach Fehlgeburt würde Betroffenen auch symbolisch den Status einer Mutter verleihen. Was sich viele trauernde Eltern wünschen, könnte allerdings fundamentalistische Diskurse zum „Schutz des ungeborenen Lebens“ bestärken, deren Akteure das Recht auf selbstbestimmte Abtreibung einschränken möchten.
Nine Months Into Chaos
Authors: Guerrero Salgado Efrén
Published: October 2024

Ecuador is nine months away from the chaotic events of 9 January 2024: attacks and the seizure of a live newscast by members of organized crime, the consequent declaration of an “internal armed conflict” by the Presidency and the designation of 22 organized crime groups as “military targets”. This social and political process which has transformed the country is not yet fully understood and merits reflection on several key aspects of this ongoing dynamic.
Implementación del Aprendizaje Basado en Proyectos (ABP) en la Educación Universitaria: Impacto en la Motivación, el Rendimiento Académico y el Bienestar Psicológico de los Estudiantes
Authors: Mendoza Bajaña Viviana Paola , Rada Cevallos María Gabriela , Hernández Daza Oscar Andrés , López Cevallos Bolivar Alejandro
Published: October 2024

El Aprendizaje Basado en Proyectos (ABP) emerge como una metodología pedagógica innovadora en la educación universitaria, promoviendo la participación activa de los estudiantes en la resolución de problemas reales. Este enfoque fomenta competencias clave como el pensamiento crítico, el trabajo en equipo y la capacidad de aplicar la teoría en situaciones prácticas, superando los métodos tradicionales centrados en la memorización. En el ámbito universitario, el ABP no solo mejora la motivación estudiantil, sino que también impacta positivamente en el rendimiento académico y el bienestar psicológico de los estudiantes.  A través de la investigación cualitativa y la revisión documental en plataformas académicas como Scopus y SciELO, este artículo analiza estudios previos que examinan el impacto del ABP. Los hallazgos destacan que los estudiantes involucrados en ABP muestran un mayor compromiso intrínseco y una comprensión más profunda de los conceptos, lo que se traduce en un mejor rendimiento en evaluaciones. Además, la metodología permite reducir el estrés académico, promoviendo un entorno de aprendizaje más saludable. Esta investigación refuerza la efectividad del ABP como herramienta educativa integral, alineada con las demandas del siglo XXI, que facilita el desarrollo de competencias esenciales para la vida profesional.
STRATEGI PREGINA ART & SHOWBIZ DIBALIK KESUKSESAN ACARA PEMUTERAN BAY FESTIVAL TAHUN 2022
Authors: Gumelar Gabriel Ishanty , Aryanto Agustinus Sani , Laksmi Desak Made Suarti
Published: October 2024

Tulisan ini secara umum ditulis dengan tujuan untuk membahas strategi atau tata kelola Pregina Art & Showbiz dalam menyelenggarakan acara Pemuteran Bay Festival Tahun 2022. Selain itu, ada juga tujuan lainnya yaitu mengetahui parameter acara bisa terbilang sukses dan mengetahui kenapa Pregina Art & Showbiz bisa dipercaya oleh Kementerian Pariwisata atau Pemerintahan dalam mengadakan acara-acara besar contohnya Pemuteran Bay Festival sendiri. Dalam mencapai tujuan, penulis menggunakan metode kualitatif sebagai metode penelitiannya. Metode ini menekankan pada analisis dan bersifat deskriptif analsis. Teknik pengumpulan data yang dipakai dalam metode kualitatif adalah teknik participant observation, dokumentasi, dan wawancara. Setelah melakukan  pengumpulan data, yang dapat disimpulkan oleh peneliti adalah strategi atau tata kelola Pregina Art & Showbiz mempunyai 4 tahapan, yaitu tahap perencanaan, tahap pengorganisasian, tahap pengarahan, dan tahap pengendalian. Dari tahapan-tahapan ini, bisa dilihat bahwa dalam menyelenggarakan acara Pregina Art & Showbiz sangat terstruktur, detail, dan matang sehingga setiap acara dapat berakhir dengan sukses. Kesuksesan ini juga dibantu karena adanya dukungan dan bantuan dari banyak pihak/relasi.
KOMPOSISI KARAWITAN “ATMA PRASANGSA”
Authors: Putra I Gede Mahendra Adi , Juni Saptono , Sujayanthi Ni Wayan Masyuni
Published: October 2024

Atma Prasangsa merupakan proses perjalanan roh atau jiwa dari semasa seseorang masih hidup hingga mencapai moksa. Dalam kehidupan sehari-hari, penata menghubungkan arti dari Atma Prasangsa tersebut dengan pengalaman pribadi penata yang kehilangan seorang kakek yang bernama I Wayan Ngarda. Melihat fenomena tersebut, penata mengangkat Atma Prasangsa untuk dijadikan sebuah judul komposisi karawitan dalam bentuk tabuh kreasi. Karena keterbatasan alat dan pendukung dari pihak mitra yang diakibatkan kerena even Pesta Kesenian Bali, maka penata memutuskan untuk melakukan peminjaman gamelan Angklung sebagai media ungkap dalam garapan ini di Banjar Kayutulang Canggu. Karya Atma Prasangsa ini bertujuan sebagai penghormatan untuk almarhum dari kakek penata sendiri. Gamelan Angklung tergolong gamelan yang berlaras selendro empat nada. Garapan ini menggunakan struktur bagian-bagian dan diputuskan menggunakan lima bagian. Adapun penonjolan yang penata buat untuk memfokuskan ide penata kedalam garapan yaitu pada bagian dua dan bagian keempat yang dimana bagian tersebut menggambarkan kesedihan dan mengikhlaskan kepergian dari kakek penata sendiri. Durasi dari keseluruhan garapan ini berkisar 12 menit. Semoga dengan adanya garapan ini masyarakat bisa mengikuti pembaharuan dalam seni karawitan khususnya pada gamelan Angklung.
PEMILIHAN LAGU PADA PEMBELAJARAN VOKAL ANAK-ANAK
Authors: Ariswanto Elthon Oktavian , Irawan Ricky , Laksmi Desak Made Suarti
Published: October 2024

The activity program MBKM or Independent Campus Learning guides students in implementing a learning process according to their deepened interest and knowledge through observation or field practice in the Teaching Assistance program. In the Teaching Assistance program, a specific music learning takes place, particularly vocal instruments or singing. Vocal learning is conducted at the Amabile Music Studio, which focuses or selecting song materials for children. The objective of this learning is to understand the process of selecting song materials for children, how techniques or applied to the learned song materials, and what challenges arise in the process of selecting song materials. The inclusion of this topic in writing is intended to inform the wider community about the process of implementing vocal learning, especially in preparing learning materials. The methods used in this writing are observation, assessment, and interviews with informants. The results of this learning include the process of preparing teaching materials, the development and application of students singing techniques, and the learning process from the song materials provided by the instructor.
INPUT, PROSES, OUTPUT PEMBUATAN MUSIK BUMPER
Authors: Luthfiansyah Muhammad Raihan Luthfiansyah , Wiyati Wahyu Sri , Ardini Ni Wayan
Published: October 2024

Bumper is an opening animation in a television program, serving as a short animation to depict the identity of a show or institution. Every TV program typically features a bumper to showcase its identity. During the internship in the MBKM 2023 program at Bali TV, I had the opportunity to create bumper music for the quiz show "Kuis Pakis Bali." I am grateful for this opportunity as it allows me to channel my passion for music and apply the knowledge gained in previous semesters to craft the bumper music for the "Kuis Pakis Bali" program. The process involved several stages: introduction, observation, music creation, and mixing/mastering. The introduction stage involved discussing the music bumper with Bali TV. The observation stage included analyzing existing bumper videos to create the musical accompaniment. In the music creation stage, I began composing the music for the bumper. Lastly, in the mixing and mastering stage, I merged the video and music, refining the sound to achieve balance and a pleasant listening experience.
Hemostatic Ability of Thermosensitive Biologically Active Gelatin-Alginate Hydrogels Modified with Humic Acids and Impregnated with Aminocaproic Acid
Authors: Miroshnichenko Denis , Lebedeva Katerina , Lebedev Vladimir , Cherkashina Аnna , Petrushenko Sergey , Hrubnyk Ihor , Yudina Yulia , Bogoyavlenska Olena , Klochko Natalja , Lysenko Liudmyla , Miroshnychenko Mykhailo
Published: October 2024

The article studies the hemostatic ability of thermosensitive biopolymer hydrogels containing 14% by weight of gelatin and 6.4% by weight of sodium alginate, impregnated with a hemostatic agent aminocaproic acid ~0.2 g/ml, with the addition of humic acids with antioxidant, antibacterial, fungicidal and anti-inflammatory properties. Modification of hydrogels with humic acids slightly increases viscosity, but maintains the gel-sol transition temperature close to the physiological temperature of about 37 °C, which allows them to melt on human skin or inside a wound, ensuring the delivery of aminocaproic acid. SEM images showed that the developed hydrogels have a layered internal morphology, which is improved due to better swelling of the hydrogels contained humic acids, which promotes the dissolution of aminocaproic acid inside the hydrogels and its subsequent rapid delivery to the bleeding site when applying a hydrogel dressing. It has been experimentally established that the concentration of humic acids in hydrogels of no more than 5 wt.% promotes blood clotting due to the entry of aminocaproic acid into it from the hydrogels. The aminocaproic acid delivered at physiological temperature from these hydrogels can shorten the blood clotting time to the lower limit of the normal clotting time range. The clotting time of the hydrogel with 5 wt.% humic acid is only 95 s, which confirms its particularly effective hemostatic ability.
Начални страници, съдържание и автори
Authors: ГСУ.ИФ.
Published: October 2024

Том 106 е посветен на отбелязването на няколко важни годишнини от миналото на Исторически факултет на Софийския университет: 134 години университетски четения по история; 102 години катедра Археология; 50 години самостоятелен ИФ; 70 години професионално архивно образование, 20 години специалност Архивистика и документалистика в СУ. Уводната статия на проф. М. Маркова, декан на ИФ прави кратък съдържателен преглед на историята на факултета, на неговите приноси към развитието на българското историческо познание и образование, така и към българистиката изобщо. Също уводна, в английски текст, е статията на проф. Х. Хепнер, насочена обаче към бъдещето на историческата наука. В рубриката статии и студии са изложени хронологически и тематично текстове на разнообразни теми: за развитието на специалността Архивистиката и документалистика от проф. Ан. Нейкова; относно кадровите проблеми на ИФ от проф. Л. Огнянов; д-р К. Мукарзел публикува статия върху демона Ламащу от древното Двуречие; д-р Тархан разглежда техники за предсказване от Древна Месопотамия. Няколко статии са посветени на проблеми от балканската и българската история в периода на Средновековието и Българското възраждане: относно българските изследвания на византийската история от проф. П. Шрайнер; ранната османска история през текст на Никола Сагундино от проф. Ив. Попова и Пиротските спомоществователи през XIX от проф. Н. Манолова-Николова. Внимание заслужават още четирите статии от тематиката на новата и съвременна обща история: за Варгас и "жълтата заплаха" от д-р Б. Митева; за САЩ и планът "Маршал" от доц. Б. Стоянов; за проблемите на Аржентина в края на 80-те и началото на 90-те години на ХХ век от доц. Г. Алексиева и "мисията невъзможна" от д-р Ив. Николова. Последните две статии в броя се отнасят до важни въпроси от държавната политика за обучението по история в V-ти клас от доц. Г. Якимов и относно значението на интеркултурното музейно образование от проф. М. Маркова и д-р Ел. Витанова. В края на т. 106 са изложени данни за авторите по реда на публикуваните статии.
Византийските изследвания в България и Историческият факултет на Софийския университет
Authors: Шрайнер Петер , Фингарова Галина
Published: October 2024

Държавната територия на днешната Българска империя винаги е принадлежала към източната част на Великата римска империя след разделянето на империята през 395 г., а след падането на Западната римска империя - към Източната римска (Византийска) империя, преди да получи първата си политическа независимост в края на VII в. Близостта до Византийската империя определя характера на българската държава през всички векове. Така че двата международни конгреса за византийски изследвания - през 1934 г. и 2011 г. - се проведоха в известен смисъл на византийска почва. На първия от двата конгреса присъстват 167 учени и са изнесени 105 лекции, а през 2011 г. има 1500 участници и почти 800 лекции. Първият конгрес все още е под патронажа на царя, а председател на конгреса е Васил Златарски. През 2011 г. президентът на държавата поема патронажа, а Васил Гюзелев и Аксиния Джурова си поделят задачата да председателстват конгреса. Историческият факултет поема организацията и влиза в ролята на пазител на българо-византийската традиция.
Варгас и „жълтата заплаха"
Authors: Митева Боряна
Published: October 2024

Епохата на Варгас е един от най-трудните периоди за японската общност в Бразилия. Всъщност Бразилия не прави изключение от останалите страни в Западното полукълбо, заляти от пропагандата на „жълтата опасност“ и антияпонското законодателство преди Втората световна война. Повърхностно е обаче да се смята, че Бразилия просто следва „тенденциите“ в региона, наложени от Съединените щати и следвани от съседите ѝ в Южна Америка. Ескалацията на антияпонските настроения се коренят не само в установения антидемократичен националистически режим, поставящ чужденците в неизгодно положение. Тази статия ще се опита да допринесе за разбирането на характера и причините за антияпонските настроения в Бразилия, като допълни съществуващата историография с анализ на фактори като расистката и ксенофобска основа, на която стъпва Варгас, и цялостната му визия за развитието на страната, негативните последици от Голямата депресия, сблъсъка на бразилския и японския национализъм. Основната цел на изследването е да обясни дали антиимигрантските мерки, въведени през 30-те години на ХХ век, се ограничават до управлението на Варгас, дали са насочени конкретно към японските имигранти, дали се коренят само в политическата пропаганда, или имат сериозни основания.
Карлос Саул Менем и проблемът с аржентинската армия в края на 80-те и началото на 90-те години на ХХ век
Authors: Алексиева Гергана
Published: October 2024

Армиите в Латинска Америка са силно политизирани институции, които често се намесват в управлението на съответните държави. Аржентинската армия не прави изключение от тази тенденция. Тя не може да приеме демократичния път, по който страната пое през 80-те години на ХХ век, и най-вече факта, че е преследвана за нарушаването на човешките права по време на т.нар. мръсна война (1976-1983 г.). На няколко пъти по време на мандата на президента Раул Алфонсин (1983 - 1989 г.) така наречените „боядисани лица“ организират бунтове. Тази тенденция продължава и при втория демократично избран президент Карлос Саул Менем, който трябва да се справи с този проблем. До средата на 90-те години на ХХ в. той успява да се справи с това начинание чрез редица мерки и реформи.
Техники за предсказване в Древна Месопотамия. Преосмисляне на понятията и процеса на гадаене
Authors: Тархан Зозан
Published: October 2024

В настоящото изследване се разглеждат гадателските техники в Древна Месопотамия, източниците, основните характеристики на някои определени практики, поводите, при които са се провеждали, както и експертите, които са ги извършвали. В статията е засегната темата за разграничаването на съвременните термини; някои от тях са преразгледани, съответно са аргументирани нови идеи и прозрения. По отношение на гадателския процес са разгледани конкретни проблеми, за които са предложени възможни решения и отговори.
Strategic Cost Management Practices and Performance of Ghanaian Public Higher Education Institutions
Authors: Ayam Justice Ray Achoanya
Published: October 2024

Higher education in Ghana struggles with transparency and reliability in cost determination, especially in public higher education institutions (PHEIs). Existing cost accounting methods tailored to funding and regulatory compliance often fall short in capturing all measurable outputs and lack the standardised reporting frameworks seen in developed countries. This article examines current strategic cost management practices in Ghanaian PHEIs, drawing data from the Ghana Ministry of Education, academic databases, and reports from the World Bank and UNESCO Institute for Statistics. The findings reveal the need for the country’s PHEIs to adopt transparent financial reporting and improve cost structures. Innovative cost management practices and a culture of fiscal prudence are necessary to ensure financial sustainability and operational efficiency. Policy interventions are recommended to develop a unified, international best practice-aligned cost accounting framework for all PHEIs in Ghana.
Perceptions of the Appropriateness of the Procedures to Develop Quality Assurance Mechanisms to Foster Tanzanian Universities’ Compliance
Authors: Mrema Daudi , Ndayambaje Irénée , Ntawiha Philothère , Ndabaga Eugene
Published: October 2024

Contemporary external and internal quality assurance structures employ participatory procedures to design quality assurance mechanisms that promote universities’ compliance. Tanzania is among the countries that have adopted such measures to promote key stakeholders’ acceptance and implementation. This study explored Tanzanian stakeholders’ perceptions of the appropriateness of the procedures that guide the development of national and institutional quality assurance mechanisms to foster universities’ compliance. Data were gathered from 46 participants across four universities by means of interviews, focus group discussions and documentary review. The data were analysed using content analysis. The analysis revealed that some key stakeholders did not make sufficient input into existing quality assurance mechanisms, resulting in non-compliance among universities, academics and students. Recommendations are offered to increase key stakeholders’ involvement and thus enhance compliance.
Internationalisation at Home
Authors: Opeto Bonny , Onen David
Published: October 2024

This article presents a comparative analysis of internationalisation efforts at Makerere University in Uganda and the University of Nairobi in Kenya, with a focus on internationalisation at home (IaH). It examines various aspects of IaH, including institutional commitment, policies, leadership, curriculum, funding, student enrolment and collaborative networks. Motivated by concerns about the limited internationalisation initiatives in East African universities, these universities were selected as case studies due to their historical ties and flagship status in their countries. Utilising documentary analysis and literature review methodologies, data were collected from policy documents, statistical records and updates from the universities’ websites and relevant educational bodies. The study found that both institutions have made notable progress in internationalising their environments through IaH, although the extent varies. The findings reveal comparable efforts but highlight the need for enhanced institutional commitment, improved policies, strengthened leadership, innovative curricula, optimal funding, diverse enrolment strategies and robust partnerships to advance IaH and overall internationalisation in East African higher education.
Francesco Massa and Maureen Attali (Eds.). Shared Religious Sites in Late Antiquity: Negotiating Cultural and Ritual Identities in the Eastern Roman Empire
Authors: Urbano Arthur P.
Published: October 2024

No abstract is available.
THE USING OF GAS CHROMATOGRAPHY FOR INVESTIGATION OF HYDROCARBON PYROLYTIC DEPOSITION ON MODIFIED NATURAL GRAPHITE
Authors: Khaskov Maxim A. , Naumova Veronika A. , Karaeva Aida R. , Mordkovich Vladimir Z.
Published: October 2024

One of the most popular technologies for electrical energy storage currently remains lithium-ion batteries (LIB), in which various carbon materials can act as the active anode material, in particular natural graphite, characterized by stable electrochemical characteristics during repeated cycling of charging/discharging processes. The paper discusses the use of gas chromatography to optimize the conditions for the pyrolytic deposition of hydrocarbons onto modified (spheroidized) natural graphite, which is carried out to significantly improve the Coulomb efficiency of these carbon materials when used in LIBs. It was shown that the analysis of gases released from the pyrolysis reactor by gas chromatography makes it possible to choose carbon-containing precursors and the conditions of their pyrolytic heterophase decomposition for the formation of a uniform film of pyrolytic carbon on the surface of modified (spherolized) natural graphite. The using of gas chromatography in the analysis of released gases also makes it possible to minimize the processes of homophase pyrolytic decomposition of a carbon-containing precursor, leading to the formation of separate carbon phases, which can be characterized by extremely low values of reversible capacity for lithium. Analysis of the ratios of product concentrations during pyrolysis allows us to conclude that the pyrolysis mechanism remains unchanged throughout the entire duration of the process. It was shown that the profile of changes in the hydrogen content in the gas mixture coming from the reactor of the pyrolytic decomposition of carbon-containing precursors correlates with the trend of changes in the specific surface area of spheroidized graphite samples. The results obtained suggest that in the case of the unchanged mechanism of pyrolytic decomposition of a carbon-containing precursor, its unchanging concentration and the heterophasic nature of pyrodecomposition, analysis of the profile of changes in the hydrogen content emanating from the reactor can be used to select optimal conditions for pyrodeposition. For example, it can be used to select the pyrolysis duration necessary to saturate structural defects in the graphite matrix, the presence of which can lead to high irreversible capacity during the first cycles of lithium interclaring and deintercalation.
For citation:
Khaskov M.A., Naumova V.A., Karaeva A.R., Mordkovich V.Z. The using of gas chromatography for investigation of hydrocarbon pyrolytic deposition on modified natural graphite. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2024. V. 67. N 10. P. 65-72. DOI: 10.6060/ivkkt.20246710.13y.
INTERPLANAR DISTANCES IN DIAMOND DEFORMED AS A RESULT OF MECHANOCHEMICAL TREATMENT
Authors: Gordeeva Tatyana A. , Kulnitskiy Boris A. , Ovsyannikov Danila A. , Popov Mikhail Yu. , Blank Vladimir D.
Published: October 2024

Deformation processes in materials affect structure and properties, so they are of interest to researchers. High-resolution transmission electron microscopy and X-ray analysis techniques are used to study deformation in crystalline materials. In this work, diamond particles with sizes ranging from 2 to 15 nm processed in a planetary mill were studied. Analysis of the structure showed a change in the interplanar distances in the particles: the d111 = 0.206 nm characteristic of diamond increased to 0.220 nm. Such lattice expansion is not characteristic of point defects and can be associated only with the breaking of interatomic bonds. The study aims to investigate the deformation mechanisms of diamond under high mechanical stresses, which has implications for potential applications. Carbon-based materials such as diamond have high strength and hardness due to covalent bonds. At temperatures below the Debye temperature diamond is almost immune to dislocation plasticity, making it one of the strongest materials. Plastic deformation of diamond can occur both under the influence of cyclic loading and under the influence of shear stresses, which opens up new prospects for its use in various fields of science and technology. When diamond nanoparticles are processed in a planetary mill, a process of transition of a metastable phase (which diamond is) to a thermodynamically stable state - graphite - is observed. This transition occurs by accumulation of defects in the diamond structure, formation of twins, onions and deformation bands. All this testifies to the complex nature of plastic deformation in diamond.
For citation:
Gordeeva T.A., Kulnitskiy B.A., Ovsyannikov D.A., Popov M.Yu., Blank V.D. Interplanar distances in diamond deformed as a result of mechanochemical treatment. ChemChemTech [Izv. Vyssh. Uchebn. Zaved. Khim. Khim. Tekhnol.]. 2024. V. 67. N 10. P. 49-54. DOI: 10.6060/ivkkt.20246710.2y.