bluuebunny/crossref_metadata_2025 huggingface dataset:
Regulação da IA e seu impacto nas políticas e práticas de concorrência na América Latina
Authors: Athayde Amanda , de Medeiros Vergara Sofia
Published: December 2024

This article seeks to analyze Artificial Intelligence (AI) regulation initiatives in Latin American countries - Argentina, Brazil, Colombia, Costa Rica, Mexico and Peru -, focusing on the potential effects and impacts of AI on competition. In this sense, we seek to answer whether there is a concern about competition expressed in the regulatory initiatives of these countries and how this concern is addressed. The research involves bibliographic review and qualitative and comparative analysis of official documents, such as bills and political guidelines. The study identifies theoretical pro- and anti-competitive effects associated with AI, establishing the basis for what will be observed in the comparative research. What can be seen is that these effects are addressed tangentially in the regulatory initiatives studied, with greater emphasis on transparency and explainability. In general, Latin American AI regulations show greater concern for the individual sphere, valuing the protection of fundamental rights and the ethical use of technology. The analysis also reveals that the objectives of regulators and antitrust authorities in Latin America may differ from the traditional standards of countries in the Global North, such as the United States and Europe.
Mitigação dos princípios cambiários pelos títulos de crédito escriturais
Authors: Bichara Mendonça Saulo , Rodrigues Thomazelli Daniel
Published: December 2024

The present study presents the theme of scriptural credit bonds based on a reinterpretation of the principles of credit bonds, notably Cartularity, Documentability and Functional Equivalence, considering their electronic circulation system. The regulation of exchange rate circulation is scrutinized in a written manner, instrumentalized by technologies, despite the mismatch between the legislative tool, technological evolution and the apparent conflict between the aforementioned principles of credit bonds. The aim is to verify whether the demand of the economic agents involved in the exchange rate relationship is effectively being met; confirming or refuting the negative premise posed to the questions whether such principles were suppressed, as well as whether the circulation of credit securities in book-entry form justifies a possible revocation of the guidelines that regulate the issuance of certificated securities. Inquiring into the hypotheses characterized by the negative nature of the inquiries, in the end, it appears that there was no suppression of the circulation of credit securities in written form nor the revocation of the determinations that regulate the issuance of certificates of exchange securities.
The use of minimally invasive biomarkers in the management of glioblastoma
Authors:   , Muller Bark Juliana
Published: December 2024

Glioblastoma is the most aggressive type of brain tumour in adults. Tissue biopsy is the gold standard technique to confirm glioblastoma diagnosis and obtain information about patients' prognoses. However, this approach is highly invasive. This thesis investigated minimally invasive alternatives to tissue biopsy. This work explored biomarkers found in blood and saliva of glioblastoma patients, namely circulating tumour cells, circulating tumour DNA, extracellular vesicles and metabolites, and their utility as prognostic biomarkers.
Women in Ecuador: the required scapegoat
Authors: Maffei Michelle
Published: December 2024

Introducción. El concepto de chivo expiatorio, es un concepto amplio para adoptar ya que se asocia con algo desconocido o algo malvado que se debe erradicar por medio de la coerción, debido a que es una amenaza. Sin embargo, la idea principal del concepto de chivo expiatorio es que este produce un miedo existencial, el cual se extrapola como un a priori o una base, para la construcción de la identidad nacional. El chivo expiatorio es requerido para construir los círculos cálidos en el Estado-Nación, es decir que los conceptos de amenaza e identidad son mutuamente constitutivos más no excluyentes. En Ecuador, uno de los grupos que históricamente han sido coercionadas son las mujeres. Objetivo & Metodología. Por lo tanto, este artículo cualitativo argumentará que las mujeres cisgénero actualmente Ecuador las usa como el chivo expiatorio para la construcción de identidad nacional. Resultados. Durante la pandemia de COVID 19 las tendencias de coerción hacia las mujeres cisgénero incrementó pese a las políticas públicas que sancionan la violencia contra las mujeres nacionalmente. Discusión & Conclusiones. Por otro lado, el artículo explora como la sociedad ecuatoriana sanciona a las mujeres cisgénero, los chivos expiatorios, por medio de estándares/roles sociales que fomentan la construcción de la identidad. Ecuador tiene leyes de paridad vigentes que aún no se llegan a concretar como por ejemplo la representación igualitaria en la política nacional, la disminución de la violencia contra las mujeres, e el desempleo femenino durante y después de la pandemia. Todo esto se da debido a que el chivo expiatorio no solo es la causa de los problemas, sino que también son la solución del problema de la sociedad. Por ende, la necesidad de mantener una violencia sostenible a las mujeres, que se ve en las pocas leyes de protección hacia las mujeres.
El cuerpo vivido y el enfoque simple. Una lectura fenomenológica de la identidad personal
Authors: Franck Juan Francisco , García Pablo Emanuel
Published: December 2024

El artículo aporta elementos fenomenológicos para reforzar algunas afirmaciones del enfoque simple en el contexto del debate sobre la identidad personal. Para esto se describe, en primer lugar, la propuesta de Geoffrey Madell y se introduce la noción fenomenológica del cuerpo propio (Leib). En segundo lugar, se muestra cómo la reducción vital propuesta por Francisco Leocata evita una posible interpretación inmanentista de la fenomenología, y favorece el desarrollo de una noción encarnada del yo y la posibilidad de entender el mundo como traspasado por la subjetividad. Este desarrollo será el fundamento para mostrar, en tercer lugar, cómo la fenomenología de los vínculos personales y de la narración también pueden aportar a la cuestión de la identidad personal.
La libertad metafísica del Dasein según la temprana interpretación heideggeriana del Freiheitsschrift de Schelling
Authors: Velázquez González Juan
Published: December 2024

La libertad es el concepto fundamental de la “metafísica del Dasein”, que Heidegger desarrolló a finales de los años 20 en continuidad con la ontología fundamental de Ser y tiempo, y que se articula junto a otros dos conceptos: trascendencia y fundamento de la existencia. En ese periodo Heidegger realizó sobre el tratado de la libertad (Freiheitsschrift) de Schelling una temprana y positiva interpretación, diluida en sus relecturas posteriores y más críticas de la obra. Según la tesis de este trabajo, gracias a esta temprana lectura de la concepción de la libertad en Schelling, al hilo de la idea de libertad en la filosofía práctica kantiana, superando el poso idealista-trascendental del Freiheitsschrift, y descubriendo en él la prefiguración de la “diferencia ontológica” y de la “temporalidad” del Dasein, Heidegger formula el sentido metafísico y último de la esencia de la existencia, cuya posibilidad de ser es la libertad.
Frontiers in Medical Illustration
Authors: Luks Francois , Suk Ian , Ford Ni-Ka , Boiselle Phillip M.
Published: December 2024

Netter’s oeuvre has been the go-to reference for generations of anatomy students and practitioners. His ability to depict diseases through the experience of everyday people makes his illustrations relatable, albeit largely focused on the white middle-class. While this he may have been a product of his era, we now recognize how a lack of representation in medical illustration leads to health disparities. An inclusive approach to visual communication promotes empathy, cultural humility, humanism – all qualities that make for better doctors.
Implementation of the 2013 Curriculum in Integrated Thematic Learning in Elementary Schools: Strategies, Challenges, and its Impact on Learning
Authors: Rafli Muhamad , Yusuf Yusni Arni , Astuti Dita Mega , Nopita Meri
Published: December 2024

Dengan metode pengajaran saat ini yang dilakukan oleh guru cenderung membuat Pelajaran membosankan karena suasana proses pembelajaran tidak menarik dan cenderung peserta didik sulit untuk fokus pada proses pembelajaran, sama halnya yang terjadi di Madrasah Ibtidayah 3 Kota Palembang. Peserta didik cenderung bosan dan gaduh pada pembelajaran tersebut, sehingga peneliti mencari alternatif lain untuk meningkatkan keaktifan pada peserta didik. Dalam proses pembelajaran yaitu dengan Educaplay. Penerapan ini bertujuan untuk meningkatkan keaktifan peserta didik pada tingkat Sekolah Dasar. Subjek dalam penerapan ini adalah siswa kelas 2 di Madrasah Ibtidayah Kota Palembang.
Enhancing the Aroma and Sensory Profiles of Decaffeinated Coffee: A Review.
Authors: A Afriliana , Jayus Jayus , h Diniyah , D Purbasari , T Lindriati ,   Department of Agricultural Product Technology, Faculty of Agriculture Technology, University of Jember, Indonesia, N Nazir ,   Department of Processing Agricultural Product Technology, Faculty of Agriculture Technology, Andalas University, Indonesia, J Kusnadi ,   Department of Biotechnology, Faculty of Agriculture Technology, Brawijaya University, Indonesia, H Harada ,   Department of Life and Environmental Science, Prefectural University of Hiroshima, Japan
Published: December 2024

The purpose of this review paper is to describe research
related to improving the aroma and sensory properties
of decaffeinated coffee. These studies underscore the
intricate interplay between brewing methods, chemical
transformations, and sensory outcomes in decaffeinated
coffee. The methods used are as follows: Aroma Compound
Recovery, smell-blocking technology, and the use of artificial
aroma compounds. Future technology for enhancement
of decaffeinated coffee aroma is through the identification
of how the roasting process and the brewing technique
significantly influence the concentration of volatile
compounds in coffee brews. the transformation of these
compounds during roasting and the subsequent extraction
during brewing are critical for the development of the coffee’s
aroma. This understanding is vital for the coffee industry, as
aroma plays a pivotal role in consumer preference and overall
sensory experience. The conclusion is that the exploration of
decaffeinated coffee aroma has yielded significant findings
that underscore the complex interplay between processing
methods and aromatic compounds. interdisciplinary
approaches that combine chemistry, sensory analysis, and
consumer behavior can provide deeper insights into the
relationship between aroma and consumer preferences,
ultimately guiding the development of more appealing
decaffeinated coffee products.
Highlights of the theory of responsibility and liability of the people's elected representatives
Authors: Donos Victor
Published: December 2024

The issue of the legal status of the people's elected representatives has now become extremely topical, especially starting from the fact that its content includes a legal and a political element, this has a specific impact on the institution of liability of these subjects of law. The article contains a study dedicated to the status of elected representatives of the people in order to identify the forms of legal responsibility that each category of people is liable to. As a result, the following categories of elected representatives of the people are identified: the head of state, deputies, mayors, local and district councillors, who are also liable to such forms of legal liability as: criminal, contravention, civil, disciplinary and constitutional.
How Meta Learning Enhances Reinforcement Learning in AI
Authors: Kosaraju Deekshitha
Published: December 2024

Meta learning or the concept of "learning to learn" has become increasingly popular in the realm of intelligence with a focus on reinforcement learning (RL). Traditionally faced with hurdles related to efficiency and adaptability when encountering environments or tasks. However, by incorporating meta learning into RL approaches... Agents are equipped not to grasp individual tasks but also to apply their knowledge to novel tasks, with limited data and exploration. This article delves into the ways in which meta learning boosts reinforcement learning by enhancing adaptability and efficiency in handling samples effectively while also improving generalization capabilities of the system at large. We will delve into the principles of both meta learning and RL and touch upon the hurdles faced by traditional reinforcement learning methods while highlighting how meta learning offers fresh and effective solutions. Furthermore, we will explore the reaching implications of this synergy across various fields such as robotics and healthcare along with autonomous systems which sets the stage for developing AI systems that are more flexible and adept, at various tasks. The article showcases the groundbreaking possibilities of merging meta learning with reinforcement learning in theory and real-world applications using illustrations and real-life scenarios.

Keywords: Meta-learning, Reinforcement Learning, Adaptation, Generalization, Sample Efficiency, Artificial Intelligence, Deep Learning, Robotics, Autonomous Systems, Machine Learning
Sickle Cell Anemia Treatment and Advancement Toward Cure Through Stem Cell Therapy: A Comprehensive Review
Authors: Lee Heather Y. , Colson Charles B. , McNamara Meghan K. , Cordell Mark B.
Published: December 2024

Sickle Cell Anemia is one diagnosis under a larger umbrella of hemoglobinopathy diseases known as Sickle Cell Disease. In this review, we will evaluate not just curative measures toward Sickle Cell Anemia, but also the potential for stem cell transplantation with respect to Sickle Cell Disease. The goal of this review article is to examine the current treatment options available for patients with Sickle Cell Anemia and the potential use of stem cell therapy as a cure. This team of authors considers the benefits and disadvantages associated with various aspects of stem cell transplantation including types of stem cell transplantations, patient age, pre and post-transplantation care, genetic variations in stem cells, and areas of future research. Stem cell therapy is an important development to aid patients suffering from Sickle Cell Disease, but access to donors, patient safety, ethical considerations, and accessibility of treatment need further evaluation for it to become the clinical standard of care.
Evaluating the Performances of Robust Logistic Regression Models in the Presence of Outliers
Authors: I. I. Hafiza, , M. Abdulmalik, , U. F. Salisu, , K. I. Balansana, , D. Abdulazeez, , N. H. Danrimi,
Published: December 2024

Logistic regression models are widely used in the field of medical and behavioral sciences. These models are used to describe the effect of explanatory variables on a binary response variable. The maximum likelihood estimator (MLE) is commonly used to estimate the parameters of logistic regression models due to its efficiency under a parametric model. However, evidence has shown that the MLE is highly sensitive to outlying observations which might affect the parameter estimates. Robust methods are put forward to rectify this problem. This paper investigated the robustness of GM-Mallows and GM-Schweppes as an alternative to the commonly used ordinary logistic regression model in the presence of outliers. The study used a Monte Carlos Simulation, by generating a logistic regression model with Five independent normally distributed covariates. 5% of outliers was contaminated to the data on sample sizes 50, 200 and 400 respectively. The results showed that the GM-Mallows estimator perform best across all metrics having the lowest AIC, BIC, MSE and MAE except for n=50. This suggests that the robust methods, especially GM-Mallows, provide more reliable estimates in the presence of outliers. The finding suggests that if there is presence of outliers’ GM-Mallows appears to be the top choice, where the GM-Schweppes offers a middle ground, providing some robustness with perhaps less extreme adjustments. The ordinary logistic regression might be preferred if simplicity and interpretability are prioritized, and there's confidence that outliers are not a significant issue in the data.
A Novel Data Handling Technique for Wine Quality Analysis using ML Techniques
Authors: Tigga Onima , Pal Jaya , Mustafi Debjani
Published: December 2024

In this era, wine is a regularly redeemed beverage, and industries are seeing increased sales due to product quality certification. This research aims to identify key wine characteristics that contribute to significant outcomes through the application of machine learning classification techniques, specifically Random Forest (RF), Decision Tree (DT) and Multi-Layer Perceptron (MLP), using white and red wine datasets sourced from the UCI Machine Learning repository. This research aims to develop a multiclass classification model using machine learning (ML) to accurately assess the quality of a balanced wine dataset comprising both white and red wines. The dataset is balanced by random oversampling to avoid biases in ML techniques for the majority class obtained by the imbalanced multiclass dataset (IMD). Furthermore, we apply a Yeo-Jhonson transformation (YJT) to the datasets to reduce skewness. We validated the ML algorithm's result using a 10-fold cross-validation approach and found that RF yielded the highest overall accuracy of 93.14%, within a range of 75% to 94%. We have observed that the proposed approach for balanced white wine dataset accuracy is 93.14% using RF, 90.83% using DT, and 75.49% using MLP. Similarly, for the balanced red wine dataset, accuracy is 89.36% using RF, 85.36% using DT, and 78.00% using MLP. The proposed approach improves accuracy by RF 23%, DT 30%, and MLP 21% for the white wine dataset. Similarly, accuracy by RF remained the same, DT 10%, and MLP 22% is improved in the red wine dataset. Additionally, the proposed approach's RF, DT, and MLP yield mean squared error (MSE) values of 0.080, 0.151, and 0.443 for the white wine dataset and 0.143, 0.221, and 0.396 for the red wine dataset. We also observed that the RF accuracy for the proposed technique is the highest among all specified classifiers for white and red wine datasets, respectively.
Real-Time Soil Nutrient Monitoring Using NPK Sensors: Enhancing Precision Agriculture
Authors: Adhikary Rahul , Choudhury Suvra Jyoti , Shankar Tanmoy
Published: December 2024

Prediction of various parameters in the agriculture field using sensors is a significant topic nowadays. However, in many scenarios, the sensor data does not accurately detect the real parameter(/s) in the agriculture field. The sensor data may vary due to various external factors, whereas the real parameters don’t vary too much for a particular agriculture field. The present work introduces a modified neural network approach to predict real agricultural parameters from sensor data with accuracy caused by several external factors and demonstrates enhanced predictive accuracy and adaptability. The neural network takes the sensor data as input in various weather conditions and tries to find out the original real parameters of that sensor data. The real-time sensor data was collected from multiple agricultural sites. The results demonstrated high predictive accuracy, with the neural network outperforming traditional statistical methods in forecasting soil moisture and other vital variables. Additionally, the model’s ability to generalize across different environmental conditions enhances its applicability in various crop management scenarios. The study concludes that neural networks hold significant potential for improving the efficiency of smart agriculture systems by providing timely, data driven insights for farmers and agronomists. Further research will explore the integration of deep learning models and edge computing to enhance scalability and realtime responsiveness in field applications. The aforementioned research highlights the significance of NPK sensors in sustainable farming methods, namely in enabling accurate nutrient management via real-time data.
Role of Digital Entrepreneurship in Social Empowerment of Women Entrepreneurs in India: An Empirical Study
Authors: Shelly Verma, Divyanshu Pandey, Harvinder Kaur, Appasaba LV
Published: December 2024

Digital entrepreneurship has emerged as a transformative force that offers numerous opportunities for the social empowerment of women in India. The study explores the way the digital platforms and technologies allow women entrepreneurs to overcome barriers like “limited access to markets, financial resources, and socio-cultural restrictions.” Women are now creating ground-breaking business models, accessing wider audiences, and achieving financial independence with the help of digital tools. It is seen that digital entrepreneurship enhances economic participation and also fosters confidence, skill development, and societal recognition for women. Government initiatives and policies are there to support female entrepreneurship. There are some challenges also like digital literacy gaps, inadequate infrastructure in rural areas, and gender biases. Previous studies show that training programs, mentorship, and improved internet access amplify the role of digital entrepreneurship in bridging gender disparities. The study suggests for collaborative ecosystem that have full control on full potential of digital platforms that empowers women entrepreneurs in India. A sample of 203 women entrepreneurs from different entrepreneurial sectors were surveyed know the factors that determines different Role of Digital Entrepreneurship in Social Empowerment of Women Entrepreneurs and found that Breaking Barriers, Skill Development, Financial Independence and Community Building are the factors that shows different role of Digital Entrepreneurship in Social Empowerment of Women Entrepreneurs.
CAT6 Yerel Ağ Bağlantısı Kablolarının (LAN) Üretim Parametrelerinin Taguchi Yöntemi ile Optimizasyonu
Authors: Hartomacıoğlu Selim , Mutlu Kamil , Dizman Kerem , Dağdelen Dilek , Çalışkan Sibel
Published: December 2024

Yerel Ağ Bağlantısı (Local Area Network), Endüstri 4.0 dijitalleşen dünyada hızla kullanımı artan bir bağlantı türüdür. Bu bağlantı türünde kullanılan kabloların üretiminde kalite karakteristikleri ürünün kullanımı aşamasında önemli parametrelerdir. Yapılan bu çalışmada, CAT 6 kablosunun üretim hattına yönelik bir optimizasyon çalışması yapılmıştır. Optimizasyon çalışmasında hat hızı, tavlama akımı ve ısı profilleri giriş parametresi olarak, çekme mukavemeti ve % uzama ise çıkış parametresi olarak kullanılmıştır. Bakır çapı, kapasite ve damar çapı üretim esnasında online olarak ölçülmüş, çekme testi işlemi ise üretim sonrası numuneler üzerinden gerçekleştirilmiş ve standart içinde olduğu tespit edilmiştir. Yapılan Taguchi optimizasyonu işleminde, çekme mukavemeti açısından incelendiği zaman hat hızının etkisinin çok fazla olduğu, sonrasında ısı profillerinin ve en düşük etkiye ise tavlama akımının olduğu tespit edilmiştir. Sonuç olarak hat hızının mevcut kullanımının 800 m/dak hızdan 900 m/dak hıza çıkartılmasının üretim hızında %5.8’lik bir artış sağlayacağı, yıllık seri üretim açısından bakıldığı zaman üretim kapasitesi arttırımı için çok önemli bir avantaj sağlayacağı tespit edilmiştir.
Multi-Objective Optimization of Dry Sliding Wear in Cryogenically Treated High-Performance AISI 9310 Steel: An Integrated Approach Using Grey Relational Analysis and Taguchi Method
Authors: Altaş Emre
Published: December 2024

AISI 9310 steel is widely used in the aerospace and defense industries due to its superior mechanical properties and corrosion resistance. This study introduces a novel approach by investigating the effects of both shallow (SCT) and deep (DCT) cryogenic treatments on the wear resistance and surface properties of AISI 9310 steel. An integrated methodology that combines Grey Relational Analysis and the Taguchi method for optimization was applied. Wear performance was evaluated using a ball-on-disc tribometer in dry sliding wear tests, revealing significant improvements. The results show that the hardness of the samples processed with DCT increased by 30%, while their volume loss decreased by 14%. In samples processed with SCT, hardness increased by 12%, with a corresponding 7% reduction in volume loss. Furthermore, the friction coefficient improved by 9% in DCT samples and by 5% in SCT samples. As the load increased, volume loss increased by 16% (from 3400 mm³ to 3950 mm³), while the friction coefficient decreased by 11% (from 0.448 μ to 0.498 μ). ANOVA analyses indicated that cryogenic treatment had the greatest effect on both volume loss and the friction coefficient. Regression analysis revealed an excellent model fit, with R2 values of 97.63% for volume loss and 99.42% for the friction coefficient. These findings suggest that cryogenic treatments significantly enhance the wear resistance of AISI 9310 steel and improve performance under varying load conditions. Additionally, they highlight the critical role of cryogenic processes in extending the service life of materials used in industrial environments, providing valuable insights for future engineering applications.
AA 2024-T3 Malzemelere Uygulanan Soğuk Şekillendirmenin T8 Isıl İşlemine Olan Etkilerinin İncelenmesi
Authors: Mermer Erdem , Çinici Hanifi
Published: December 2024

Havacılık ve uzay endüstrisinde alüminyum alaşımlarının kullanımı önemli bir yer tutmaktadır. Bu malzemelerden AA2024 alaşımı, özellikle uçakların ana gövde ve kirişlerinde, bağlantı ve perçin malzemelerinde kullanılmaktadır. Bu alaşımların ısıl işlem uygulanmamış haliyle mukavemetleri düşük olduğu için, soğuk şekillendirme ve ısıl işlem prosesleri ile malzemelere mukavemet kazandırılmaktadır. Bu çalışmada, AA2024-T3 malzemelere oda sıcaklığında 30°, 45°, 60°, 75° ve 90°’lik açılarında soğuk şekillendirme yapılıp, T8 ısıl işlem koşuluna getirmek amacıyla ısıl işlem uygulanmıştır. Malzemelerin özellikleri hem T3 ısıl işlem koşulunda hem de ısıl işlem sonrası T8 koşulunda incelenmiştir. Alaşımların mikroyapıları hem optik hem de taramalı elektron mikroskopları ile incelenmiştir. Ayrıca, alaşımların mikrosertlik ve elektriksel iletkenlik özelliklerindeki değişimleri de araştırılmıştır. Form işlemi yapılmış T3 malzemelerde form açısı arttıkça ortalama tane boyutunda artış meydana gelmiştir. Ayrıca, sertlik değerlerinde de bir miktar artış sağlanmıştır. T8 ısıl işlem koşulundaki malzemelerde yapılan analizlerde ise form açısından bağımsız homojen tane boyutları ve yüksek sertlik değerleri elde edilmiştir. T8 ısıl işlem koşulundaki mikroyapı analizlerinde tanelerde ikizlenme yapılarının oluştuğu gözlenmiştir.
S-Cam Fiber Takviyeli Polimer Kompozitlerin Delinmesinde İşleme Parametrelerinin Etkilerinin Deneysel Olarak İncelenmesi
Authors: Kaya Zafer , Mumcu Hakan , Koyunbakan Murat
Published: December 2024

Fiber takviyeli kompozit malzemeler günümüz endüstrisinin vazgeçilmez malzemeleri arasına girmiştir. Bu malzemeler üretim süreçleri sonrasında tek başlarına ya da montaj yoluyla çoklu olarak kullanılırlar. Montajlı olarak çalışacakları yapı içerisinde üzerine matkaplar ile açılan delikler vasıtasıyla sökülebilir ya da sökülemez olarak birleştirilirler. Bu çalışmada, S-cam fiber takviyeli polimer kompozit malzemenin farklı kesme parametreleri ve farklı çaplardaki ağaç matkapları kullanılarak delinmesi sonucunda oluşan delik kalitesi ve kesme parametrelerinin etkisi araştırılmıştır. Delik kalitesini tanımlamak için delaminasyon ve yüzey pürüzlülüğü (Ra) incelenerek değerlendirilmiştir. Taguchi metodu kullanılarak kesme parametrelerinin delaminasyon ve yüzey pürüzlülüğü üzerindeki ilişkileri analiz edilmiş ve varyans analizi yapılmıştır. Yapılan analizler ile giriş ve çıkış delaminasyon faktörleri için en önemli etken parametre matkap çapı olarak tespit edilmiştir. En düşük yüzey pürüzlülüğü 10 mm çapında matkapla, 40 mm/dak ilerlemede ve 1000 devir/dak devir sayısında yapılan deneylerde ölçülmüştür.
Investigation of Joinability Of 25% Recycled Al6016 Sheets By Friction Stir Butt Welding At Different Tool Rpm
Authors: Kirdemir Halil , Yakupoğlu Cihan , Varol Faruk , Apay Serkan
Published: December 2024

In this study, 25% recycled 2 mm thick Al6016 sheets used in the production of automotive body and chassis parts were used. They were joined in the butt position using different tool speeds on the mold milling machine. The tool tip was selected as 2379 quality steel and the surface hardness was increased to 62-64 HRC. The sinking tip was designed as a conical geometry. In the joints, 400 mm/min welding progress speed, 1.8 mm tool tip immersion depth, 15 mm shoulder width and 90o tool inclination angle were kept constant. The rotation speed of the stirring tip was determined as 600 rpm, 1200 rpm, 1800 rpm, 2400 rpm, 3000 rpm, 3600 rpm as variable parameters. Heat inputs were calculated according to variable speeds. Samples taken from the welded joint with the friction stir method were examined with tensile, bending and hardness tests. Macro and micro images were examined and the fracture surfaces were compared. While the highest tensile strength at 400 mm/min feed speed was determined as 214 MPa at 1800 rpm and the lowest value was determined as 83 MPa at 600 rpm, no fracture was observed at 2400 and 3000 rpm as a result of the bending test and it was successful. The highest results of the hardness values of the joint area were measured as 97.4 Hv at 600 rpm rotation speed. It was determined that penetration occurred in the macro structure at all rpm speeds. When the micro images were examined, it was seen that the grain structure thinned from the base metal to the joint area.
Optimization of Overcut in EDM of Mirrax Steel Using Copper Alloyed Electrodes
Authors: Yaman Sefa , Kalyon Ali
Published: December 2024

In this study, the optimization of overcut in electrical discharge machining (EDM) processes, with a focus on the effects of various process parameters on machining performance, particularly when challenging materials such as Mirrax steel are investigated. A Taguchi-based experimental design was employed to systematically analyze three distinct copper-based alloy electrodes; CuCoNiBe, CuNi2SiCr, and CuCr1Zr under varying discharge currents (6 A, 12 A, 25 A), pulse on-times (50 μs, 100 μs, 200 μs), and pulse off-times (200 μs, 400 μs, 800 μs). It was found that overcut is significantly influenced by the electrode type, discharge current, and pulse duration, with the CuCoNiBe electrode exhibiting the highest overcut values. Analysis of Variance (ANOVA) was conducted to confirm the significant contributions of these parameters to overcut variability. This research contributes to a deeper understanding of the interplay between EDM parameters, in advanced manufacturing applications.
The Impact of Complexity and Ambiguity of Accounting Disclosures on Corporate Cash Holdings
Authors: Sotiropoulou Virginia , Tzelepis Dimitris
Published: December 2024

This work aims to investigate the association of complex and vague information of accounting disclosures with firms’ cash holdings policy. The sample includes firm year observations from the annual reports of U.S. firms (10-Ks) for the period 1999 to 2016. Financial data obtained from the Compustat/Center for Research in Security Prices (CRSP) database are merged with qualitative data from textual analysis of the reports. The main finding of the study indicates that companies with complex and ambiguous reports tend to retain a higher level of cash to overcome the higher cost of raising external capital. This is in line with the agency motive and the precautionary motive theories from the cash holdings literature. The results of this research work provide further knowledge to researchers, managers, financial analysts, and investors as they contribute to the deeper analysis and comprehension of corporate cash holdings policy shedding the light on its association with accounting information quality. This work contributes to two growing strands of accounting literature: cash holdings literature and literature on the quality of corporate disclosures. Specifically, it adds empirical evidence to research questions that are not widely examined in the relevant literature, expanding the range of measures of complexity and ambiguity of accounting information that are used.
Unveiling the Green Truth: How Transparent Are Malaysian Manufacturing Companies About Their Carbon Footprint
Authors: Ibrahim Khairunnisa , Jais Mohamad , Md Isa Abu Hassan , Jaffary Muhammad Adzlan Syah Ahmad
Published: December 2024

Environmental sustainability has become a key concern for businesses worldwide, with expectations that they take responsibility for their carbon emissions and environmental effects. Reducing carbon emissions is critical for businesses due to companies' regulatory pressures and market expectations. Malaysia increased its mitigation ambition with an unconditional target to cut carbon intensity against GDP by 45% by 2030 compared to 2005 levels. This study aims to evaluate the extent of carbon footprint disclosure among manufacturing companies in Malaysia. Companies listed in Bursa Malaysia were chosen as the sample data in this study. The result of content analysis, approximately 18.97%, 269 of respondents are willing to disclose their carbon footprint information, suggesting a relatively low level of carbon footprint reporting. The policymakers should provide incentives for investment in green technology and enact strict regulations to encourage more companies to engage in carbon reporting.
Nebraska: Bruce Springsteen’s Traditional Singer-Songwriter Neoclassical Pivot
Authors: Allen Stephen Arthur
Published: December 2024

This article seeks to explore and enrich the reader/listener’s comprehension of Nebraska as the moment Bruce Springsteen embodies the singer-songwriter he was originally signed to be, while simultaneously going beyond it—but with an unexpected difference. In Nebraska Springsteen recognizes a process whereby he can make and remake “legitimate” public acoustic versions of his bigger E Street Band arrangements that appear to redefine “era,” establishing a more or less invisible “prehistoric” neoclassical acoustic strata threading through his entire output—the complete acoustic songs and versions as a collection. As such, he becomes an imaginary new kind of American artist, one who writes songs both in and from the acoustic Dust Bowl era of the 1930s and in full-band (E Street) contemporary arrangements. In short, all his songs can now live a double life as both “historic” and “present.”
Nebraska Then and Now
Authors: Lee Richard
Published: December 2024

Bruce Springsteen’s Nebraska captured a side of America that pop culture was ignoring in 1982. The songs tell stories of people who struggle to survive in a world of haves and have-nots. Forty years later, Americans still struggle to survive, and the gap between the haves and the have-nots has grown wider. This article posits that the America Springsteen describes in Nebraska is much like today’s America. The article also suggests that hidden beneath Nebraska’s themes of hopelessness and despair is a sense of resiliency that characterized America long before 1982 and continues to do so today.
Aunt Sári’s Letter: How a Young Woman Saw (and Did Not See) the Holocaust and the Siege of Budapest
Authors: von Klimó Árpád
Published: December 2024

Presented here is the translation of a letter written in Budapest in November 1944, shortly before the beginning of the siege of the Hungarian capital by Soviet and Romanian troops. The letter describes the everyday struggles of a middle-class Christian family, the (naive?) ideas of a 21-year-old woman who worked at the Hungarian Supreme Court, and how she witnessed the Holocaust and the war.
Operetta, Cabaret Songs, and Coffeehouse Gypsy Music between Elite and Popular Culture
Authors: Vari Alexander
Published: December 2024

This review essay discusses recent works on Hungarian popular culture. It connects books published in Hungarian with secondary literature in English and German. It contextualizes the topic from a broader perspective while also highlighting how the reviewed works contribute to the acquisition of new knowledge about the coming into being and the changing shapes of Hungarian popular culture between the nineteenth and the mid-twentieth centuries.
Best Practices for Including Students With Visual Impairment in KFL Classrooms
Authors: Lee Ji-Yeon
Published: December 2024

This article discusses best practices for including a blind student in a college Korean as a Foreign Language (KFL) classroom. First, it surveys theories of language acquisition for people with visual impairment (VI) and reviews previous research on foreign language teaching and learning for students with VI. Second, it delves into (a) anticipatory adjustments made by the school; (b) assistive technology used by the blind student; and (c) modifications and accommodations implemented by the Korean instructor. These include alternative forms of quizzes and exams, modified assignments, classroom activities, and frequent check-ins to address the student’s needs and progress. Finally, the article reviews the implications of the study and suggests recommendations for effective practices in teaching KFL to students with VI.
Inheritance Tax Avoidance Through the Family Firm
Authors: Micó-Millán Isabel
Published: December 2024

This paper demonstrates that family firms act as vehicles for inheritance tax avoidance among wealthy individuals. By leveraging a major tax reform in Catalonia, which widened the tax rate differential between tax-favored and non-tax-favored assets, I study asset-shifting responses to the change in inheritance taxation. To identify causal effects, I use the universe of inheritance tax returns and a difference-in-difference design comparing wealthy descendants to other wealthy heirs who were minimally affected by the policy change. After the tax reform, wealthy descendants inherit substantially more wealth through tax-favored assets. This effect is driven entirely by the top 0.5% of descendants, whose inheritances strongly shift towards equity in family firms. This change in the composition of inheritances is consistent with wealthy testators transferring assets to their firms as capital contributions before their passing. My estimates suggest that Catalonia forgoes 27% of current inheritance and gift tax revenues due to the reclassification of private wealth as business wealth via family firms.
Ocular manifestations and treatment course of monkeypox virus in two males with acquired immunodeficiency syndrome
Authors: Hopkins Nikolas , Tang Anthony , Hilliard Grant , Liu Jillian , Louie Emily , Gloria Kwak Hakyong , Partal Andreea
Published: December 2024

Introduction: Mpox (formerly monkeypox) is a previously endemic virus that has become a global concern.

Case Report: In this case series, we present two cases of ocular mpox in men with acquired immunodeficiency syndrome (AIDS), highlighting their clinical presentation, diagnosis, and management. Treatment involved the use of antiviral medications, tecovirimat and ganciclovir, based on limited existing data and recommendations from the Center for Disease Control (CDC).

Conclusion: These cases highlight the variability in presentation among AIDS patients with extensive corneal and conjunctival involvement and the potential for immune reconstitution inflammatory syndrome upon re-initiation of anti-retroviral therapy during active mpox infection. These cases emphasize the importance of early recognition, involvement of ophthalmology, and a multidisciplinary approach to prevent vision-threatening complications.
Analisis Faktor-Faktor Yang Mempengaruhi Tax Avoidence
Authors: Hasanah Neneng
Published: December 2024

This research aims to examine the factors that influence Tax Avoidance, That Factors Are Transfer Pricing and Sales Growth. This research is a type of quantitative research using secondary data. The sample in this research was 91 Property and Real Estate companies listed on the Indonesia Stock Exchange in 2019 - 2022. The method used was purposive sampling. Based on the purposive sampling method, the number of samples in this study was 28 selected companies. The research period was 4 years, so the resulting data was 112 samples. Hypothesis testing uses panel data testing with the help of the Eviews version 10 program. The panel data analysis model chosen in this research is the Random Effect Model. Based on the results of the partial test (t test) it can be seen that the Transfer Pricing and Sales Growth variables have no effect on Tax Avoidance.
Investigation of the effects of laser power and gas pressure on the top and bottom HAZ widths in AISI 1040 steels
Authors: Adin Mehmet Şükrü
Published: December 2024

In this research, AISI 1040 steels, which are extensively used in different manufacturing industries, were used as workpieces to better comprehend the influences of laser beam cutting parameters on workpieces. In this context, such parameters as laser power, gas pressure and cutting speed were established as variable parameters. In present research, unlike the investigations available in the literature, the workpieces that started to be cut in a straight line were stopped 3 mm before the end of the cutting process. Thus, it could be possible to both see and investigate the top and bottom HAZ (Heat Affected Zone) widths occurring just outside the workpieces. Within the scope of the research, especially the top and bottom HAZ widths occurring in workpieces cut with a different method were investigated. At the gas pressure of 0.7 Bar, considering the largest and smallest bottom HAZ width values, it was studied out that the largest bottom HAZ width value (9.23 mm) was 32.83% larger than the smallest bottom HAZ width value (6.95 mm). On the other side, considering the largest and smallest top HAZ width values, it was studied out that the largest top HAZ width value (5.33 mm) was 71.39% larger than the smallest top HAZ width value (3.11 mm). At 1.4 Bar gas pressure, considering the largest and smallest bottom HAZ width values, it was found that the largest bottom HAZ width value (11.47 mm) was 28.19% larger than the smallest bottom HAZ width value (8.95 mm). On the other side, considering the largest and smallest top HAZ width values, it was studied out that the largest top HAZ width value (6.79 mm) was 42.95% larger than the smallest top HAZ width value (4.75 mm). Additionally, considering the largest and smallest average HAZ width values based on gas pressure of 0.7 Bar and 1.4 Bar, it was found that the largest the average HAZ width values were 33.29% and 44.75% larger than the smallest the average HAZ width values, respectively.
Farklı serbest yağ asidi oranlarına sahip yağlardan elde edilen biyodizel yakıtlarının, dizel motorlardaki kullanılabilirliğinin kimyasal özellikler açısından değerlendirilmesi
Authors: Uyar Mahmut
Published: December 2024

Bu deneysel çalışmada, düşük ve yüksek serbest yağ asit (SYA) içeriğine sahip iki farklı yağdan biyodizel üretimi gerçekleştirilmiştir. Üretilen yakıtların fiziksel ve kimyasal özellikleri incelenerek, dizel bir motorda kullanılabilirliğinin kimyasal laboratuvar sonuçları kapsamındaki yorumlanması amaçlanmıştır. Kanola ve atık bitkisel yağın SYA oranlarının sırasıyla %3,8 ve %15,05 oranlarında olduğu tespit edilmiştir. Atık Bitkisel yağın SYA oranının %5'in üzerinde olması sebebiyle transesterifikasyon reaksiyonu öncesinde, asidik ön nötralleştirme işlemine tabi tutulmuştur. Yağın asit reaksiyonuna maruz kalmasının ve üretim prosesindeki farklılığın motor performansına etkisi incelenmiştir. İnceleme sonucunda, asit nötralleştirmesine tabi tutularak 2 aşamalı olarak üretilen biyodizel yakıtının diğer yakıta kıyasla; Yoğunluk değerinde %2.4, Viskozite değerinde %6.3, Isıl değerinde %4.5 ve Setan sayısında %5.55 oranlarında bir azalmaya sebebiyet verdiği tespit edilmiştir. Bu azalmanın temel sebebi ise, SYA oranı yüksek olan atık bitkisel yağa, asit katalizörlü ön işlem uygulanmış olması neticesinde, reaksiyon aşamasında uzun zincirli kimyasal bağ yapısına sahip hidrokarbonların kırılma (kraking) olarak tabir edilen parçalanma reaksiyonuna maruz kalmış olması olarak yorumlanmıştır. Elde edilen tüm yakıt numunelerinin TS-EN 14214 normundaki değerlerde olduğu ve sorunsuz bir şekilde dizel motorlarda kullanılabileceği sonucuna ulaşılmıştır.
The Denotative and Connotative Meaning in Happier Song Lyrics by Olivia Rodrigo
Authors: Nurjanah Mila Siti , Nirwana Ria
Published: December 2024

This study aims to determine the denotative, connotative and mythological meanings contained in the object of research, namely the lyrics of the song ‘Happier’ by Olivia Rodrigo. The main theory used in this research is the semiotic theory of Roland Barthes. The method used in this research is a qualitative method with a descriptive interpretive approach. Data collection techniques are document studies by obtaining data from various sources relevant to the research. The results showed that the lyrics of the songs studied contained denotative, connotative and mythological meanings in them. The denotative meaning conveyed by the song creator in the lyrics of the song ‘Happier’, namely the main character’s wish for her ex-boyfriend that he can be happy with his new girlfriend, but not as happy as when he was with her. Then the connotative meaning contained in the lyrics of this song is the main character has not been able to let go of her ex-boyfriend with another woman. She also hopes that her ex-lover will always remember her. While the mythology contained in the lyrics of this song is that a woman doesn’t easily forget the past and hard to move on from a love relationship, because women prefer to use feelings rather than thinks.Keywords: song lyrics, semiotic, denotative, connotative, mythology
STUDENTS' PERCEPTION TOWARDS THE USE OF GOOGLE FORM IN ENGLISH ONLINE LEARNING
Authors: Rahmawati Selindah , Nurchaerani Meiyanti
Published: December 2024

Due to covid-19 there has been a change from traditional learning to online learning methods. Common obstacles in online learning are lack of internet packages, causing poor internet connections and special obstacles such as lack of understanding of learning materials, lack of focus and difficulty in carrying out tasks. For that we need media that can affect learning, especially learning English. One of the media that is easy to use for learning English is Google Form. Because the use of the media is relatively new, so the researcher wants to know how students perceive in using Google Form for students' English learning. This study used a qualitative narrative research design. The data collection in this study are using questionnaire interview. The results of the study revealed that students had positive perceptions of the perceived usefulness factor, the ease of use factor, the use intention factor, and the attitude factor towards learning. The result is that students have a positive impact on the use of Google Form.