bluuebunny/crossref_metadata_2025_split huggingface dataset:
Полупромышленные испытания схемы получения серебра из сбросных растворов регенерации ионообменной смолы
Authors: Sanakulov K. , Ergashev U.A. , Polvanov S.K. 
Published: July 2024

Sorption technology using anion exchange resin is used in the processing of gold-bearing ores of the Muruntau deposit. Studies have shown that despite the high selectivity for gold, silver and other associated non-ferrous metals, which are valuable from the point of view of the integrated use of mineral raw materials, are sorbed to some extent by ion-exchange resin. Studies have shown that it is possible in principle to extract silver from acidic waste solutions by precipitation using various precipitating reagents. This article presents the results of semi-industrial tests of the scheme for obtaining silver from waste solutions of ion exchange resin regeneration. The final product was a silver ingot with a metal content of 87,7%. In the future, anodes can be cast from the resulting silver ingot and 99,99% silver can be obtained by electrochemical method.
При переработке золотосодержащих руд месторождения «Мурунтау» применяется сорбционная технология с использованием анионообменной смолы. Исследования показали, что несмотря на высокую селективность по золоту, ионообменной смолой в некоторой степени сорбируются серебро и другие попутные цветные металлы, имеющие ценность с точки зрения комплексного использования минерального сырья. Исследования показали принципиальную возможность извлечения серебра со сбросных кислых растворов путем осаждения с применением разных реагентов-осадителей. В данной статье приведены результаты полупромышленных испытаний схемы получения серебра из сбросных растворов регенерации ионообменной смолы. Конечным продуктом явился слиток серебра с содержанием 87,7% металла. В дальнейшем из полученного серебряного слитка можно отлить аноды и электрохимическим методом получить серебро высшей пробы 99,99%.
Combine «Achpolymetall» – the founder of the «paste backfill»
Authors: Крупник Л.А. 
Published: July 2024

В статье изложены сведения о разработке технологии приготовления «пастовой закладки» – закладки высокой плотности с явно выраженными тиксотропными свойствами. Такая закладка впервые была разработана и внедрена научными сотрудниками Казахского политехнического института и работниками комбината «Ачполиметалл». «Пастовая закладка» на основе хвостов флотации с высоким содержанием оксида кальция позволила получить закладочные смеси с соотношением T:Ж = 80:20 с подвижностью 12-14 см, которая сохранилась в течение всего времени транспортирования. После укладки смесь быстро загустевала практически без усадки. Проектная прочность искусственного массива 1,5…2 МПа достигалась в короткие сроки при расходе цемента в 1,5…2 разы ниже, чем на других рудниках.
The article presents information about the development of technology for the preparation of «paste backfill» – backfill of high density with pronounced thixotropic properties. Such a backfill was first developed and implemented by the researchers of the Kazakh Polytechnic Institute and the workers of the Achpolimetal plant. «Paste backfill» based on flotation tailings with a high content of calcium oxide made it possible to obtain backfill mixtures with a ratio of S:L = 80:20 with a mobility of 12-14 cm, which was preserved throughout the entire transportation time. After laying the mixture quickly thickened with little or no shrinkage. The design strength of the artificial massif 1.5...2 MPa was achieved in a short time at a cement consumption 1.5...2 times lower than in other mines.
Corrosion Behavior of Cu-Ni-Fe-Mn-Cr Alloy in 3.5 wt% NaCl Solution
Authors: Li Shifang , Xiao Zhu , Fang Mei , Xie Haofeng , Peng Lijun 
Published: July 2024

A novel Cu-10Ni-1.7Fe-0.5Mn-0.2Cr alloy was fabricated and exposed to a neutral 3.5 wt% NaCl solution for various days. The corrosion performance, corrosion film, and corrosion mode of the alloy were investigated in detail. The results suggested that the average corrosion rate reduced from 0.082 mm/a for 1-d immersion sample to 0.037 mm/a for 30-d immersion sample. The reduction in corrosion rate was mainly attributed to the progressive thickness and densification of the corrosion film, leading to increasing the resistance of the corrosion film with the prolonged exposure time. Low-valent oxides and chlorinated compounds were generated over the 1-d immersion sample surface, while high-valent oxides and hydroxide compounds were developed over the 30-d immersion sample surface. The mature corrosion film typically composed of Cu2O, CuO, Cu2(OH)3Cl, γ-FeOOH, MnO2, and Cr2O3. Eventually, the alloys suffered from selective corrosion and intergranular corrosion after a long exposure time in NaCl solution.
Pengembangan media pembelajaran “BEJU” berbasis web melalui pendekatan saintifik untuk meningkatkan kemampuan berpikir kritis siswa
Authors: Achmad Alfaridzih  , Hakim Muchammad Miftakhul , Asyhadi Lutfia , Larantuka Tjie Yan Sufi Dewa Tapa , Rif’ati Mila 
Published: July 2024

enelitian dan pengembangan ini bertujuan untuk menghasilkan media pembelajaran BEJU sebagai media pembelajaran yang memuat materi mempertahankan kejujuran pada mata pelajaran PAI kelas VII SMP, khususnya. Pengembangan media digunakan sebagai alternatif dalam mengembangkan media berbasis teknologi informasi dan internet. Penelitian dan pengembangan ini menggunakan model Sugiyono yang sudah melalui modifikasi antara lain, (1) potensi dan masalah, (2) pengumpulan data, (3) desain produk, (4) validasi desain, (5) revisi desain, (6) uji coba produk, (7) revisi produk, (8) uji coba pemakaian, (9) revisi produk, (10) produk akhir. Berdasarkan hasil uji validitas dan uji coba produk kepada peserta didik ditemukan bahwa media pembelajaran BEJU dikategorikan sangat efektif untuk diimplementasikan menjadi media pembelajaran PAI
EFEKTIVITAS MODEL STAD DENGAN TGT UNTUK MENINGKATKAN HASIL BELAJAR DAN SIKAP KEBHINEKAAN GLOBAL DI SEKOLAH DASAR
Authors: Salma Anisa  , Endang Indarini  
Published: July 2024

Jenis penelitian ini adalah eksperimen kuasi. Penelitian ini bertujuan untuk menganalisis langkah-langkah model STAD, menganalisis langkah-langkah model TGT serta tujuan utamanya untuk membuktikan tingkat efektifitas antara model STAD dan TGT dalam meningkatkan hasil belajar dan sikap kebhinekaan global di Sekolah Dasar. Hasil penelitian pada hasil belajar yakni t hitung>t tabel menunjukkan hasil sebesar 3,094>2,049. Dari hasil uji beda (t-test) diketahui bahwa nilai sig (2-tailed) sebesar 0,004, (0,004<0,05). Kemudian pada hasil sikap kebhinekaan global didapat t hitung>t tabel yakni sebesar 2,785>2,049. Dari hasil uji beda (t-test) diketahui bahwa nilai sig (2-tailed) sebesar 0,009, (0,009<0,05). Adapun nilai rata-rata hasil belajar posttest pada kelompok eksperimen yang menggunakan model STAD adalah 79,20, sedangkan pada kelompok kontrol yang menggunakan model TGT sebesar 86,89. Selain itu rata-rata skor penilaian kuesioner sikap kebhinekaan global pada kelompok eksperimen 38,17 sedangkan kelompok kontrol 43,28. Dengan demikian model TGT lebih efektif dalam meningkatkan hasil belajar dan sikap kebhinekaan global di Sekolah Dasar.
THE IMPACT OF AI ON INTERNAL AUDITING: TRANSFORMING PRACTICES AND ENSURING COMPLIANCE
Authors: Beatrice Oyinkansola Adelakun  
Published: July 2024

Artificial Intelligence (AI) is revolutionizing internal auditing by transforming traditional practices and enhancing compliance mechanisms. This abstract explores the multifaceted impact of AI on internal auditing, highlighting key advancements in efficiency, accuracy, risk management, and regulatory adherence. AI technologies, particularly machine learning and advanced data analytics, are enhancing the capabilities of internal auditors to analyze large volumes of data swiftly and with greater precision. Traditional internal auditing methods, often constrained by manual processes and sampling techniques, are being supplanted by AI-driven approaches that offer comprehensive analysis and real-time insights. This shift enables auditors to identify anomalies, fraud, and operational inefficiencies more effectively, thereby improving the overall accuracy and reliability of audit outcomes. One of the significant benefits of AI in internal auditing is its ability to automate routine and repetitive tasks. By leveraging AI, auditors can focus on higher-value activities, such as strategic risk assessment and decision-making, thus enhancing the overall productivity of the audit function. Furthermore, AI-driven tools can continuously monitor financial transactions and operational processes, providing real-time alerts and insights that help in early detection of potential issues and proactive risk management. AI also plays a crucial role in ensuring compliance with regulatory standards. By integrating AI systems with compliance frameworks, organizations can automate the tracking and reporting of compliance-related activities. This not only reduces the risk of human error but also ensures that organizations stay updated with evolving regulatory requirements. AI’s ability to process and analyze regulatory texts enables organizations to swiftly adapt to new compliance mandates, thereby mitigating the risk of non-compliance penalties. However, the integration of AI into internal auditing is not without challenges. Ensuring data quality and integrity is paramount, as AI systems rely on accurate data inputs to function effectively. Additionally, the "black box" nature of some AI algorithms can pose transparency issues, making it difficult for auditors to explain how specific conclusions were reached. Addressing algorithmic biases and maintaining auditor expertise in AI technologies are also critical considerations. In conclusion, AI is significantly transforming internal auditing practices by enhancing efficiency, accuracy, and compliance. While the benefits are substantial, careful management of data quality, transparency, and algorithmic biases is essential to fully realize the potential of AI in internal auditing.
Keywords: Impact, Ai, Internal Auditing, Transforming Practices, Ensuring Compliance.
PENGARUH KUALITAS PRODUK DAN CITRA MEREK TERHADAP KEPUTUSAN PEMBELIAN LAMPU HANNOCHS DI TOKO SAMARINDA INDAH
Authors: Kevin Kevin , Mahendra A , Yuliana Yuliana 
Published: July 2024

Keputusan pembelian adalah bentuk keputusan yang diambil oleh customer mengenai preferensi suka atau tidak sukanya suatu produk dalam serangkaian pilihan, pelanggan beli produk ini berdasarkan kebutuhan mereka. Kualitas produk yaitu keunggulan sebuah produk dalam menjalankan perannya. Sedangkan citra merek merupakan gambaran keyakinan konsumen akan suatu brand yang tertanam dalam bentuk asosiasi atau terkait dengan ingatan konsumen. Perumusan masalah pada penelitian ini, “Apakah ada pengaruh kualitas produk dan citra merek terhadap keputusan pembelian lampu hannochs di Toko Samarinda Indah”. Tujuan yang ingin dicapai dalam penelitian ini adalah untuk mengetahui pengaruh kualitas produk dan citra merek terhadap keputusan pembelian Lampu Hannochs di Toko Samarinda Indah. Metode penelitian yang digunakan kuantitatif asosiatif hubungan kausal. Jumlah responden/sampel sebanyak 85 pembeli lampu hannochs dari populasi konsumen yang pernah membeli lampu hannochs dengan teknik pengambilan sampel adalah accidental sampling. Besar pengaruh kualitas produk dan citra merek terhadap keputusan pembelian dapat dilihat pada hasil uji determinasi (R2) secara persentase adalah sebesar 69%. Dengan hasil koefisien determinasi ini maka dapat disimpulkan bahwa keputusan pembelian Lampu Hannochs di Toko Samarinda Indah sebesar 69% dipengaruhi kualitas produk dan citra merek, sedangkan sisanya 31% merupakan sumbangan faktor lain yang dapat dijelaskan oleh variabel lain.
Exploring the Effects of Mathematics Laboratory Usage on students’ Skills Development: A Case of Selected Public Secondary Schools in Musanze District, Rwanda
Authors: Ngayubwiko Alphonse , Andala Hesbon Opiyo 
Published: July 2024

The aim of this study was to explore how the use of mathematics laboratories affects the development of mathematics skills in learners from selected public secondary schools in Musanze District, Rwanda. Adopting constructivism theory, the study utilized a descriptive research design and a mixed-methods approach to collect both quantitative and qualitative data from surveys, interviews, and classroom observations, respectively. The study randomly sampled 348 learners and 16 mathematics teachers from the targeted population of 2679 participants. In relation to students' standardized test scores and teacher assessments, the analysis examined the frequency of lab use, lab activities, resource quality, and teacher training. Findings from quantitative data revealed positive correlations between lab usage and skill development across all measures. The frequency of lab use and teacher training were particularly strong predictors of improved performance. The results show that how often teachers use the lab (B =.122, p <.001) and their training and support (B =.150, p =.010) have a big effect on their evaluations, which means that these things have a positive effect on evaluations. In contrast, the types of lab activities and the quality of lab resources have no significant impact. These findings suggest that enhancing lab use frequency and providing robust training and support for teachers are crucial for improving teacher assessments. Interview results show that hands-on activities significantly boost critical thinking and the real-world application of mathematical concepts. From classroom observations, the study revealed remarkable discrepancies in student participation and resource availability between day and boarding schools. The findings suggest that the school administration should incorporate lab activities into the curriculum, enhance the frequency of lab use, and facilitate continuous teacher training by providing sufficient resources. Teachers should integrate engaging lab activities to strengthen theoretical concepts and encourage active learning. Students are urged to actively participate in lab sessions and look for help when necessary. These results help us understand how mathematics laboratories can improve learning outcomes in Rwandan secondary schools.
SEARCH FOR STABLE STRUCTURES FOR THE NICKEL-SULFUR SYSTEM AND COMPARISON WITH THE IRON-SULFUR SYSTEM
Authors: Bazarbek A. B. , Akylbekova A. D. , Kissabekova A. A. , Nogai A. A. , Akilbekov A. T. 
Published: July 2024

The core of the Earth consists mainly of iron and nickel, forming an iron-nickel alloy. At the same time, sulfur is one of the potential candidates for the role of a light element in the inner core. To date, many theoretical studies have been conducted by quantum chemical modeling to search for intermediate compositions and structures in systems such as Fe-C, Fe-H, Fe-O, Fe-Si, Fe-S and Fe-P up to pressures of 400 GPa.Despite extensive research on the iron-light element systems, to date no mineralogical model of the Earth's core has been created that fully corresponds to the observed seismological data. A possible reason for this discrepancy may be insufficient consideration of the influence of the core's key alloying element, nickel. Theoretical studies for the nickel-light element system at high pressures have not been sufficiently carried out. Therefore, it is necessary to conduct more in-depth studies of these binary systems in order to further study and identify possible intermediates in triple Fe-Ni-S systems.
English Teachers’ Perceptions of the Importance of Essential Components and Early Grade Reading Instruction
Authors: Yisihak Endrias , Damtew Abebe 
Published: July 2024

This study examines English teachers’ perceptions of the importance of essential components and early grade reading instruction: Ethiopian context. To this end, the researchers chose a descriptive research design of quantitative-qualitative approaches. Twenty (20) randomly selected primary schools were the sources of data; 125 primary school English teachers of Hawassa City Administration filled in a questionnaire. Among the twenty schools, two were selected randomly and interviews were conducted with six English teachers of grades one to three (1-3). The quantitative data analysis was done by using software for data analysis (SPSS Version 25.0), descriptive statistics. The data gathered through semi-structured interview were analyzed descriptively in words. The results have shown that participant teachers were not practicing the strategies appropriate for literacy instruction although they have positive perceptions of importance of the critical components of early grade reading instruction. Therefore, it is strongly recommended that teacher preparation programs should reconsider the level of emphasis placed on early grade reading instruction, and practice focused trainings should be given to Ethiopian lower grades English teachers on early grade reading instruction and assessment.
Satisfacción del estudiantado en la formación profesional del área Ciencia, Tecnología y Medio Ambiente
Authors: Castillo Martínez Jamill , Artola García Javier Osmar 
Published: July 2024

La Universidad de las Regiones Autónomas de la Costa Caribe Nicaragüense (URACCAN) es una institución comprometida con la excelencia académica. En este sentido, llevó a cabo una investigación sobre la satisfacción de los estudiantes en relación a la formación profesional en el área de Ciencia, Tecnología y Medio Ambiente, específicamente en el Recinto Las Minas y sus extensiones en el Caribe Norte de Nicaragua.
Las dimensiones evaluadas fueron; nivel de satisfacción con la gestión de la coordinación sobre su formación profesional, planificación y desarrollo de las asignaturas con relación a su perfil profesional, labor docente en la calidad de su formación profesional y planificación y desarrollo de las prácticas en su formación profesional, a través de un estudio mixto con escala Likert y entrevistas grupales a profundidad.
Los principales hallazgos demuestran que, el 68.66% del estudiantado muestra satisfacción de manera general con la gestión de la coordinación. Por su parte, la carrera Medicina Veterinaria presenta la mayor satisfacción con 89.99% y la carrera Ingeniería Agroforestal la de menor satisfacción con 59.95%. Sobre la planificación y desarrollo de las asignaturas en función del perfil profesional la satisfacción general del estudiantado es del 75.33%, siendo la carrera de Medicina Veterinaria la mayor satisfecha con 96.02% e Ingeniería Agroforestal con la menor satisfacción de 69.58%.
El 86.96% del estudiantado, está satisfecho con la labor del profesorado con relación al desarrollo de las practicas, el 71.83% del estudiantado está satisfecho con el desarrollo de las prácticas en su carrera, sin embargo, la carrera de Ingeniería Agroforestal alcanza el 49.8%.
Standardization and Reproducibility of Dynamic Stress Testing for Occult Pelvic Ring Instability
Authors: Lee Adam Keith , Marecek Geoffrey Scott , Collinge Cory Alan 
Published: July 2024

Introduction:
Examination under anesthesia (EUA) (stress fluoroscopy) is commonly done after pelvic ring injury to identify occult instability because unstable disruptions may displace causing morbidity. The force applied during EUA for these injuries has not been standardized. The purpose of this study was to examine the forces used during the EUA by experienced orthopaedic trauma pelvic surgeons.

Methods:
Orthopaedic traumatologists performed simulated EUA on a cadaver at two North American pelvis and acetabular courses using internal rotation (IR), external rotation, and push-pull maneuvers while wearing a handheld dynamometer to measure force. All surgeons used a comparable method, and each performed EUA multiple times. Maximum forces were measured in Newton (N).

Results:
Eighteen surgeons participated. Four had been practicing for <5 years, six for 5 to 10 years, six for 11 to 20 years, and two for >20 years. Surgeons applied a force ranging from 40.4 to 374.9 N during IR, 72.9 to 338.4 N during external rotation, and 25 to 323 N during push-pull, with notable variability seen between surgeons. Three surgeons (18%) had >50-N variability on serial trials of a single EUA maneuver (IR).

Discussion:
This is the first study evaluating the forces applied during pelvic EUA used to assess ring stability. Notable variability existed among surgeons performing EUA and in serial examinations by the same surgeon. Additional study is needed to standardize the displacement measured and threshold for instability that guides management.
Diversity on the American Academy of Orthopaedic Surgeons National Meeting Podium: Changes Over Two Decades
Authors: Samineni Aneesh , Tornetta Paul 
Published: July 2024

Background:
There has been an increase in diversity initiatives regarding selecting speakers for the American Academy of Orthopaedic Surgeons (AAOS) annual meeting and courses. The purpose of this study was to determine the percentage of female or underrepresented minority (URM) speakers for instructional course lectures (ICLs) and AAOS courses over the past 2 decades including a surrogate for expertise.

Methods:
For 2002, 2012, and 2022, the academic and demographic information of speakers and the number of publications at the time of their speaking role were obtained and compared by sex and URM status. Owing to the unequal sample sizes between male versus female cohorts and URM versus non-URM cohorts, the Welch t-test was used.

Results:
The percentage of ICL and AAOS course speakers who were female increased over time (ICL, AAOS courses): 2002 (2.6%, 3.3%), 2012 (3.9%, 6.3%), and 2022 (11.8%, 15.5%) (P < 0.001, P < 0.001). The percentage of female AAOS fellows in these years was 2.9%, 4.7%, and 7.4%, respectively. For ICLs and AAOS course speakers, female presenters had fewer publications than male counterparts (ICL, AAOS courses): 2002 (P < 0.001, P = 0.048), 2012 (P = 0.003, P < 0.001), and 2022 (P < 0.001, P < 0.001). For ICLs in 2022, URM speakers had a similar number of publications compared with non-URM speakers. In 2022, URMs comprised 6.9% of ICL speakers and 4% of AAOS fellows. For 2022 ICLs, there were no significant differences in academic institution, position, or region when compared by sex or URM status. For AAOS courses, the percentage of URM speakers increased over time: 2002 (1.1%), 2012 (4.5%), and 2022 (8.6%). For AAOS courses, URM presenters had similar publications compared with non-URM presenters in 2002 and 2022 but less in 2012 (P = 0.027).

Discussion:
The percentage of women and URMs presenting ICLs and AAOS courses has increased over the past 2 decades and exceeded the percentage they represent in the AAOS by over 50%. The female cohort has fewer publications, on average, than the male cohort for all years evaluated, indicating no institutional bias against female speakers.