bluuebunny/crossref_metadata_2025_split huggingface dataset:
Various Metallography Techniques for Microstructure Analysis of Ni-Based Superalloys
Authors: Belan Juraj , Uhríčik Milan , Mikolajčík Martin , Šurdová Zuzana 
Published: January 2025

Abstract
The Ni-based superalloys are known for the number of phases presented in alloy microstructure. Depending on alloying elements, phases such as austenitic FCC gamma matrix, L12 gamma prime, DO22 gamma double prime, BCT delta phase, and MC or M23C6 (or M6C) carbides have occurred. With these microstructure components’ variety, the usual optical microscopy analysis is not satisfactory many times. For a better understanding of how single structures affect the lifetime of Ni-based superalloys components (turbine blades or turbine discs) and how they are changing during their operation load is SEM a very powerful tool. Two different types of superalloys were used for experimental evaluation. The first were cast superalloys ZhS6K and IN 738. Both cast superalloys in bar form were subjected to additional heat treatment at 800°C for 10 and 15 hours followed by air-cooling. The influence of gamma prime phase morphology changes on alloy lifetime and Vickers hardness were evaluated by SEM coherent testing grid methods. The second was wrought superalloy IN 718 and Nimonic 80A in bar form to present the various grain size evaluation techniques according to ASTM E112 standards. Various analyses were employed (SEM fractography, BSE observation, EDS mapping, etc.) for microstructure evaluation. The main goal is to show how effective light microscopy and SEM on Ni-based superalloy analysis are when microstructure change evaluation is needed.
Consideraciones sociales en proyectos de ingeniería
Authors: Villegas Rodríguez Luis Carlos 
Published: January 2025

En Colombia, los proyectos de ingeniería han incorporado en su diseño, construcción y operación, la interlocución con disciplinas diferentes de las ingenierías, tales como las ciencias naturales, inicialmente, y las ciencias sociales, de manera posterior. Dicho proceso ha incidido en la manera como los proyectos se relacionan con los territorios y en como las empresas abordan los problemas más críticos, en medio de los cuales desarrollan su operación. Los determinantes de dicha inclusión han sido las grandes transformaciones ecológicas y sociales originadas por los mismos proyectos en los territorios, la deficiente gestión de los impactos, la protesta social organizada con alcance de paros cívicos en las regiones en las cuales se construyen y operan los proyectos y, en los últimos veinte años, la exacerbación de los riesgos ocasionados por el conflicto armado.
Algunas empresas, logran realizar una progresiva lectura de las obras de infraestructura y de su relación con los territorios, como un problema complejo y dan pasos para la construcción de interdisciplinariedad al interior de los equipos a cargo de las obras. Es una confluencia que se construye a partir de la vinculación de profesionales de las ciencias naturales y sociales, que logran diferentes niveles de articulación con grupos de ingeniería, dominantes en las empresas de construcción de infraestructura.
Este proceso permite nuevas lecturas del territorio y en algunas ocasiones avanza hasta propiciar diálogos en contextos de búsqueda de reconocimiento de las comunidades, de gestión de impactos de las obras, de concertación en torno a medidas de manejo, de retribución con compensaciones para la población, de respeto a los derechos humanos y, aún de acción colaborativa en la construcción de paz, a través de la promoción y apoyo a los Programas de Desarrollo y Paz (PDP), creados a partir de la iniciativa del padre Francisco De Roux en el Magdalena Medio en 1995 (De Roux, 1999).
Se trata de pocas empresas, y de un proceso con grandes incertidumbres, pero por su importancia es un referente para otras empresas y para los PDP que son, a su vez, fundamentales para la construcción de paz.
ФОЛЬКЛОРНІ МАРКЕРИ В ГАЛИЦЬКОМУ ПРЕСОВОМУ ПОЛІ КІНЦЯ ХІХ СТ.
Authors: КОМАРИЦЯ Мар'яна 
Published: January 2025

Осердям аналізу статті є фольклорні маркери в галицькій пресі кінця ХІХ ст. Поняття «маркери» трактується як умовно окреслені форми різнопланового використання фольклорних матеріалів у пресі: записи пісень та обрядів, переспіви, теоретичні розвідки, інформаційно-хронікальні замітки, некрологи. Джерельна база дослідження – публікації в часописах «Зоря», «Дїло», «Житє і Слово», «Правда», «Основа». Найбільший за обсягом пласт пресового контенту – це фольклорні записи з Галичини, Буковини, Закарпаття (Угорської Руси) й Наддніпрянщини, що увиразнюють тогочасне розуміння єдності нації крізь мистецьку призму, а залучення до процесу збирання студентів і ґімназистів засвідчує суспільну вагу справи, зокрема її освітній фактор. Контроверсійність питання власності записів народнопоетичних скарбів висвітлене на основі публікацій часописів «Дїло» (о. Никифор Лещишак та Іван Франко) та «Житє і Слово» (Михайло Драгоманов і Порфирій Мартинович). Фольклорне підґрунтя оригінальних літературних текстів візуалізують твори Федора Зарицького, Уляни Кравченко, Миколи Устияновича, Володимира Шашкевича. У ґрунтовній студії І. Франка про колядки в «Ділі» простежене історичне, релігійне та літературне підґрунтя їх творення, а в розвідці Ватрослава Ягича про символ Дунаю у журналі «Правда» – ментальні відмінності між народними (українськими та російськими) текстами. Системний аналіз фольклористичних розвідок у пресі кінця ХІХ ст. є підґрунтям для компаративних паралелей: науковий діалог засвідчив можливість різновекторної інтерпретації та вихід фольклористичних студій на новий методологічний рівень. Музична складова народнопоетичної спадщини представлена розвідками Анатоля Вахнянина, Порфирія Бажанського й Лева Сапогівського, які увиразнює цікавий коментар Захера Мазоха щодо коломийки. Стаття «Украінські пісні на московських жорнах» («Житє і Слово)» актуальна у контексті численних фактів привласнення інтелектуального доробку українських авторів. Аналіз хронікальних матеріалів та некрологів, у яких зазвичай згадувалась діяльність на ниві збереження та популяризації фольклору, засвідчує унікальність та цінність цієї праці.
DYNAMICS OF MINERAL ELEMENT CONTENT IN MANDIBULAR BONE TISSUE OF EXPERIMENTAL ANIMALS DURING THE HEALING OF AN ARTIFICIAL DEFECT FILLED WITH OCTACALCIUM PHOSPHATE
Authors: Chelpanova Ilona , Masna Zoryana , Ambarova Nataliya 
Published: January 2025

Introduction: The problem of bone trauma and restoration of bone integrity with defects of various localization, shape and size is particularly relevant today.
Objective: To determine the features of post-traumatic dynamics of the mineral elements content in the bone tissue of the mandible using octacalciumphosphate.
Materials and Methods: The study was conducted on 65 sexually mature male rabbits weighing 2.5-3.0 kg, aged 6-7 months which were divided into 3 groups (20 rabbits each): Group I - control - the bone tissue defect healed under a blood clot; Group II - the defect was filled with native octacalciumphosphate (OCP-N); Group III - the defect was filled with octacalciumphosphate with chitosan and ampicillin (OCP-N-Chitosan-Ampicillin). Five intact animals were used to study the normal mineral composition of the rabbit mandibular bone tissue (MBT). The content of five mineral elements was determined using atomic absorption and emission spectral analysis. Data was carried out after 7, 14, 21, 28, 35, 56, and 84 days.
Results: It was established that the calcium and phosphorus content in the MBT were lower than in the control, but higher than normal. Magnesium and sodium levels with OCP-N were similar to controls, while with OCP-N-Chitosan-Ampicillin, they returned to normal. Sodium levels were higher than controls. Sodium levels were higher than the first control group data. Magnesium levels, while using OCP-N were higher than the parameters for intact animals and first control group throughout the entire experiment. While using the OCP-N-Chitosan-Ampicillin material they were higher than the first control group. The potassium content throughout the experiment in both experimental groups was lower than data of first control group. However, when using OCP-N material on day 84, the studied parameter remains significantly lower than in intact animals; with OCP-N-Chitosan-Ampicillin it returns to normal values.
Conclusions: The mineral composition of bone tissue undergoes significant changes following a bone-destructive injury, characterized by a substantial increase in calcium, phosphorus, and magnesium levels. The dynamics of sodium and potassium content are less pronounced. When the bone defect is filled with the osteoconductive material OCP-N-Chitosan-Ampicillin, the levels of calcium, phosphorus, magnesium, sodium, and potassium return to normal values by the 84th day after injury
A rare case of brain metastatic malignant melanoma coexisting with black colored dura mater: Management in low-resource setting
Authors: Blegur Irvan Yosua , Malelak Elric Brahm , Argie Donny , Hietingwati Syebenhezer Epatah 
Published: January 2025

Background:
Brain metastases significantly contribute to morbidity and mortality in individuals with cancer, with melanoma exhibiting a high propensity for central nervous system dissemination. Early recognition and diagnosis are crucial, especially in low-resource settings where access to advanced diagnostics and treatment may be limited.

Case Description:
We present the case of a 63-year-old male with a history of metastatic melanoma who presented with progressive neurological deficits. Imaging revealed a solitary brain metastasis in the cerebellopontine angle, further complicated by diffuse melanotic infiltration of the dura mater. The patient underwent surgical resection of the cerebellopontine angle mass, and histopathological examination confirmed metastatic melanoma.

Conclusion:
This case highlights the importance of considering metastatic disease in the differential diagnosis of cancer patients presenting with neurological symptoms, even in atypical locations. The presence of dural melanosis underscores the aggressive nature of melanoma and the need for comprehensive evaluation. This case emphasizes the need for prompt diagnosis and management to optimize patient outcomes, particularly in resource-constrained environments.
Exploring efficacy: A comprehensive review of extended transsphenoidal approach in anterior skull base meningiomas
Authors: Palavani Lucca B. , Mitre Lucas Pari , Nogueira Bernardo Vieira , Honorato Fabiana , Ferreira Marcio Yuri , Farias Carlos Alexandre , Ribeiro Paulo Victor Zattar , Banderali Isabela Vilas , Brenner Leonardo O. , Gomes Fernando Cotrim , Gomes Gisele Lúcia Canto , Ribeiro Filipe Virgilio , Bertani Raphael , Landeiro Jose Alberto 
Published: January 2025

Background:
Anterior skull base meningiomas can cause significant symptoms such as mass effect and neuropsychological decline, necessitating surgical resection. The endoscopic extended transnasal approach has emerged as a minimally invasive alternative to craniotomy, offering a means to address these tumors despite challenges due to the proximity of critical neurovascular structures and the high risk of complications such as cerebrospinal fluid (CSF) leaks. This systematic review and meta-analysis evaluate the safety and efficacy of extended transsphenoidal techniques in anterior skull base meningiomas.

Methods:
This study followed Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and the Cochrane Handbook. A search was performed in Medline, Embase, Cochrane, and Ovid. Eligible studies included those (1) in English, (2) with patients having anterior skull base meningiomas, and (3) who underwent endoscopic surgical management. Endpoints included CSF leak, length of stay, complications, and mortality.

Results:
The analysis included data from 23 studies involving 573 patients with a median age of 54.77 (range 39.5–67.3) years. Approximately 71% of participants were female. The mean length of stay was 7.50 days (95% confidence interval [CI]: 6.64–8.47). The overall complication rate was 35% (95% CI: 0.22–0.49), with minor complications also occurring in 6% of cases (95% CI: 0.02–0.10). Major complications were reported in 20% of cases (95% CI: 0.10–0.30). The CSF leak rate was 7% (95% CI: 0.04–0.10).

Conclusion:
In the setting of complex anatomical challenges and inherent risks, the technique showed a moderate complication rate and length of hospital stay. This method demonstrated lower CSF leak and complication rates compared to previously published studies from the past decade.
Stereotactic radiosurgery versus whole-brain radiotherapy for intracranial metastases: A systematic review and meta-analysis
Authors: Alrasheed Abdulrahim Saleh , Aleid Abdulsalam Mohammed , Alharbi Reema Ahmed , Alamer Maryam Ali , Alomran Kawthar Abdullah , Bin Maan Sarah Abdullah , Almalki Sami Fadhel 
Published: January 2025

Background:
Brain metastasis has a negative influence on the morbidity and mortality of cancer patients. Conventionally, whole-brain radiotherapy (WBRT) was favored as the standard treatment for brain metastases. However, it has been linked to a significant decline in neuro-cognitive function and poor quality of life. Stereotactic radiosurgery (SRS) has recently gained prominence as an alternative modality, considering that it provides targeted high-dose radiation while minimizing adverse effects. This study evaluates the efficacy and safety of SRS versus WBRT in patients with intracranial metastases.

Methods:
According to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses statement, through July 2024, we searched PubMed, Scopus, and Web of Science for articles comparing WBRT and SRS in patients with intracranial metastases. Outcomes included local and distant recurrence, leptomeningeal disease (LMD), and survival. We also used a random-effect model to perform a meta-analysis.

Results:
The findings revealed no significant differences in local (risk ratio [RR] = 0.70, 95% confidence interval [CI] [0.46, 1.06]) or distant recurrence rates (RR = 0.83, 95% CI [0.54, 1.28], P = 0.41) between WBRT and SRS. However, SRS was associated with a greater risk of post-radiation LMD (hazard ratio [HR] = 3.09, 95% CI [1.47, 6.49], P = 0.003). Survival rates at 1 year (RR = 1.03, 95% CI [0.83, 1.29], P = 0.76) and 5 years (RR = 0.89, 95% CI [0.39, 2.04], P = 0.78) demonstrated no significant differences.

Conclusion:
SRS and WBRT exhibited similar recurrence rates and overall survival (OS) at 1 and 5 years, with WBRT being more effective in managing post-radiation LMD. SRS patients, on the other hand, had longer OS when measured in months.
English as a Medium of Instruction in non-English Subject; Exploring the Students’ Language Proficiency
Authors: Asshofiah Khodijah 
Published: January 2025

In facing the current era of globalization, it is necessary to implement an application that supports students to improve their English proficiency. The research problems are how is the implementation of EMI in non English subject and how is the students’ class language proficiency situation during joining the EMI-based class? The writers used the descriptive qualitative case study method. The subject of the research were students at Maahad Tahfiz Al-Qur'an Darul Falah Selangor, Malaysia. The instruments were field observation, interviews, questionnaires. The research findings and discussion are highlight the dual role of EMI in improving English language proficiency while facilitating content mastery, despite challenges such as code-switching and students' varying levels of self-confidence. EMI improved language skills; its effectiveness depends on strategies tailored to support students' diverse needs. The conclusion are EMI improved language skills; its effectiveness depends on strategies tailored to support students' diverse needs. These insights contribute to optimizing EMI practices and advancing education policies that align with global academic demands. The integration of language and subject knowledge through EMI prepares students for academic success and equips them with the linguistic and cognitive skills. The recommendation are further researchin the other scope of EMI is needed to explore the long-term impact of EMI on students' academic performance and language proficiency, particularly in diverse educational contexts to serve as a valuable tool for promoting inclusive and effective educational environment.
Synthesis, characterization and cytotoxicity analyzes of novel AB-Type Amphiphilic Block Copolymers
Authors: Mısır Murat 
Published: January 2025

AB-type novel amphiphilic poly(L-lactide)-block-(N-isopropylacrylamide) (PLLA-b-PNIPAM) and poly(L-lactide)-block-(N-vinyl-pyrrolidone) (PLLA-b-PNVP), diblock copolymers were synthesized through the combined use of ring-opening polymerization (ROP) and controlled/living radical polymerization (CRP) techniques. (PLLA-b-PNIPAM) block copolymer was prepared via combination of ROP and atom transfer radical polymerization (ATRP) using the novel PLLA-based ATRP macroinitiator. (PLLA-b-PNVP) block copolymer was synthesized via combination of ROP and reversible addition-fragmentation chain transfer (RAFT) polymerization using the PLLA-based RAFT macro chain transfer agent (CTA). For this purpose, at first 2,4-difluorobenzyl alcohol (1) was used to initiate the ROP of (L-LA) using tin(II) 2-ethylhexanoate Sn(Oct)2 as a catalyst at 120 ℃ for synthesis of PLLA-OH (2). Secondly, bromoester end-functionalized PLLA-based ATRP macroinitiator (3) was synthesized by esterification of hydroxyl end group of (2). The first block copolymer, (PLLA-b-PNIPAM) (5), was synthesized by ATRP of NIPAM using (3) in presence of copper(I) chloride/tris[2-(dimethylamino)ethyl]amine (CuCl/Me6TREN) as catalyst system in DMF/water at 25 °C. For the synthesis step of second block copolymer, at first PLLA macro chain transfer agent (CTA) (4) was then synthesized via substitution reaction of (3) with potassium ethyl xanthogenate (KEX) and finally PLLA-b-PNVP (6) diblock copolymer was prepared via RAFT polymerization of NVP using (4). The molecular structures of novel polymers (2-6) were elucidated by spectroscopic (FTIR and 1H NMR) methods. In the application phase of this study, the effectiveness of copolymers was examined on cervical cancer cells. Cytotoxicity effects were evaluated in vitro on HeLa cell lines.
Real-Time Identification of Yarn Irregularities on DTY Machine Through Vibration Monitoring
Authors: Sutanto Agus , Kurnia Deni , Fakhrurroja Hanif , Roni Wibowo Nanang 
Published: January 2025

This paper presents an innovative real-time monitoring system for detecting yarn irregularities during the draw texturing process in DTY machine. The system uses advanced sensors to continuously measure vibration signals, which are then analyzed for anomalies. The system incorporates advanced sensors, controllers, and embedded software for monitoring the vibrations produced during the draw texturing process. Fast Fourier Transform (FFT) in LabVIEW converts these vibration signals into their frequency-domain representation. This helps identify anomalies that could indicate potential yarn irregularities. The results from the sensor data clearly indicate that amplitude values serve as a reliable measure for detecting yarn irregularities. For normal spindles, the amplitude ranges from 10.9 to 12.2 m/s², while abnormal spindles show significantly higher values, between 31.9 and 44.3 m/s². This distinction facilitates real-time classification of yarn quality. The system's ability to identify these amplitude variations promptly can significantly reduce waste and enhance quality control. Future developments will focus on integrating an intelligent early warning system that alerts operators immediately upon detecting irregularities, enabling quicker interventions and minimizing downtime.
KAJIAN HUBUNGAN PENGGUNAAN OBAT ANTITUBERKULOSIS FASE AWAL TERHADAP KADAR SGOT-SGPT PADA PASIEN TBC PARU DI RSUD PASAR REBO JAKARTA
Authors: Sari Dini Permata , Andriani Vevi 
Published: January 2025

Tuberkulosis (TBC) paru merupakan suatu penyakit infeksi serius yang disebabkan oleh Mycobacterium tuberculosis. Obat anti tuberkulosis (OAT) sangat penting dalam pengobatan TBC, namun dapat menyebabkan hepatotoksisitas yang ditunjukkan oleh peningkatan kadar enzim hati seperti SGOT (AST) dan SGPT (ALT). Penelitian ini bertujuan untuk mengetahui hubungan penggunaan OAT fase awal terhadap kadar SGOT dan SGPT pasien TBC paru di RSUD Pasar Rebo Jakarta. Metode penelitian ini observasional analitik dengan menggunakan desain cross-sectional dengan data retrospektif dari rekam medis 43 pasien yang memenuhi kriteria inklusi pada bulan Januari-Maret 2024. Populasi terdiri dari pasien TBC paru, dengan sampel dipilih melalui purposive sampling. Variabel penelitian meliputi karakteristik demografi, kadar SGOT, dan SGPT. Data dikumpulkan menggunakan e-rekam medis dan dianalisis dengan metode statistik SPSS. Hasil studi ini mengungkapkan bahwa mayoritas pasien adalah jenis kelamin laki-laki, terhitung 58,2% dari total sampel. OAT fase awal yang paling banyak digunakan adalah kombinasi dosis tetap (KDT) yang digunakan oleh 81,4% pasien. Kadar SGOT normal diamati pada 65,1% pasien, dan kadar SGPT normal pada 81,4% pasien. Kesimpulan dari penelitian ini adalah peningkatan kadar SGPT dan SGOT akibat obat Anti Tuberkulosis (OAT) tidak terjadi pada semua pasien, namun secara kualitatif efek pemberian obat anti tuberkulosis meningkatkan kadar SGPT dan SGPT. Temuan ini menunjukkan bahwa meskipun OAT fase awal umumnya aman digunakan, pemantauan fungsi hati sangat penting dilakukan.
PENGARUH PEMBERIAN MADU MURNI TERHADA PENURUNAN FREKUENSI DIARE PADA ANAK DI RSUD Drs. H. ABU HANIFAH
Authors: Septi Arienda 
Published: January 2025

Diare merupakan kondisi buang air besar yang sering dan encer dengan frekuensi 3 kali atau lebih dalam sehari. pada tahun 2023 kasus diare di Bangka Tengah sebanyak 5704 orang. Kehilangan cairan dan elektrolit yang tidak digantikan dengan cairan yang baru akan menjadi dehidrasi. Untuk menurunkan frekuensi diare dapat menggunakan farmakoterapi dan nonfarmakoterapi atau terapi komplementer, salah satu terapi komplementer yang dapat digunakan yaitu dengan pemberian madu. Penelitian ini untuk mengetahui perubahan frekuensi BAB saat sebelum diberikan madu dan sesudah diberikan madu pada anak balita yang sedang mengalami diare Di RSUD Drs. H. Abu Hanifah. Penelitian ini dilakukan dengan menggunakan desain metode kuantitatif dengan desain penelitian Pre Experimen dengan Pretest dan Postest with control group. Dengan uji wilcokxon berupa univariat dan bivariat. Populasi pada penelitian ini adalah pasien diare anak di RSUD Drs. H. Abu Hanifah. Jumlah sampel ygdigunakan dalam penelitian ini ada 32 orang yang di bagi menjadi 2 kelompok (16 orang kelompok intervensi dan 16 orang kelompok kontrol). Hasil penelitian ini diketahui ada pengaruh rata-rata frekuensi diare dari 4.44 menjadi 1.81 setelah pemberian perlakuan. Hasil Analisa data menunjukkan terdapat perbedaan yang signifikan pada frekuensi diare kelompok intervensi p-value yaitu 0,000 (p-value < 0,05) dan klompok kontrol p-value yaitu 0,0000 (p-value < 0,05). Saran dari peneliti ini adalah agar madu murni dapat dijadikan terapi non farmakologi untuk menurunkan diare pada anak.