bluuebunny/crossref_metadata_2025_split huggingface dataset:
Use of Biogas in Gas Turbines for the Production of Heat and Electricity
Authors: Chernousenko Olga , Vlasenko Olga 
Published: December 2024

In the modern developed countries of the world, the main part of the extracted fuel and energy resources is spent on the production of electricity and heat of low and medium potential. In Ukraine, the biomethane production potential is estimated at 7.8 billion m3/year, which is 25 % of the current natural gas consumption in the country. The infrastructure of Ukraine is ready for transportation and energy use of biomethane, as biomethane is a complete analogue of natural gas. When storing organic waste ("bio-waste") – for example, the organic part of household waste - biogas, a mixture of methane and carbon dioxide, is released. This gas is a high-quality fuel for gas engines or gas turbines - just like methane gas produced from biomass in sewage treatment plants. Biogas can replace fossil fuels and is also characterized by its CO2 neutrality. Biogas can be burned on-site with little to no processing to heat buildings and power boilers or even the reactor itself. Biogas can be used for combined heat and power generation, can be simply converted to electricity using an internal combustion engine, fuel cells or gas turbine, with the resulting electricity being used on-site or sold into the electricity grid. Taking into account the advantages of using biogas, as well as the price policy for natural gas, the study carried out a calculation of the thermal scheme of the state district power plant. Natural gas is used as the main fuel, biogas was chosen for comparison. The specific heat of combustion of biogas is almost half that of natural gas. When operating on biogas, the efficiency of a gas turbine installation is 8.5 % lower, and that of a steam-gas installation is 7.5 % lower than on natural gas. Since 1000 m³ of natural gas is equivalent to 1,00 m³ of biogas, a biogas accounting factor has been introduced. On the basis of the relevant research, conclusions were drawn regarding the use of biogas as an alternative to natural gas. The relevance of the use of biogas for the production of heat and electricity is to provide a promising source of electricity and reduce carbon dioxide emissions.
Development of Evernoted Learning Media Center as Learning Innovation and Assistive Technology for People with Disabilities
Authors: Novarianto Riski Agung , Utami Prihma , Bashofi Ferdinan , Rahadian Septa , Setiani Puspita Pebri , Firdausi Faizah Ulumi , Sunuyeko Nurcholis 
Published: December 2024

The development of Evernoted Learning Media Center aims to introduce inclusive learning innovations for people with disabilities. This study presents the design and implementation of an Evernoted-based learning platform with accessibility features. Employing the Research and Development (R&D) method, a need analysis was initially conducted through interviews with teachers and principals at three Special Needs Schools (SLB/Sekolah Luar Biasa) in Malang City. The analysis results were used to design an appropriate Evernoted Learning Media Center design. The platform incorporates accessibility features, including alternative text, contrast settings, and layer readers. Findings revealed that Evernoted could be configured into an effective learning medium, offering flexibility, personalization, and ease of users access with various types of disabilities, especially deaf people. The analysis results demonstrated that Evernoted Learning Media Center could be an effective alternative for meeting the varied learning needs of students with disabilities, particularly deaf people, through two versions: an augmented reality (AR)-based Android application and a virtual tour-based website. Validation results indicated the platform’s feasibility at 83.17%, categorizing it as very feasible to be tested on students with disabilities.
Development of Mobile Exam Application to Prevent Student Exam Cheating on High School Computational Thinking Informatics Materials
Authors: Tiarani Mukhamad Khasan , Rejekiningsih Triana , Sumaryati Sri 
Published: December 2024

This study aims to develop a mobile-exam application to prevent cheating during online exams in high school computational thinking. The research follows the 4D development model (Define, Design, Develop, Disseminate) and collects data through questionnaires, observations, pre-test and post-test in control and experimental classes. Sample included 72 respondents divided into control and experimental classes. The analysis involves descriptive and statistical methods to compare test result and cheating frequencies. Result indicate that the use of the mobile exam app significantly decreases cheating occurrences compared to traditional methods. The number of cheating incidents decreased from 20 in the control classes to 5 in the experimental classes, demonstrating the application's effectiveness in promoting academic integrity. Furthermore, the experimental class using the app shows improvement in post-test by 13 points compared to a 5-point increase in the control classes, demonstrating that the app not only prevents cheating but also enhances student learning outcomes. This app contributes to promoting academic integrity in online education settings, offering an innovative solution for improving exam security and student performance.
Quality-of-life scale machine learning approach to predict immunotherapy response in patients with advanced non-small cell lung cancer
Authors: Shen Juanyan , Ma Junliang , Chen Shaolin , Jin Su-Han , Xu Junzhu , Li Qisha , Zhang Chi , Tian Xiaojing , chen Xiaofei , Wang Haitao , Tan Fangya , Hecht Markus , Frey Benjamin , Gaipl Udo S. , Ma Hu , Zhou Jian-Guo 
Published: December 2024

Abstract

Background
Despite immune checkpoint inhibitors(ICIs) significantly improves clinical outcomes in patients with advanced non-small cell lung cancer (NSCLC), disease progression is inevitable. A diverse patient-reported Quality-of-life(QoL) scale attempts to predict outcomes for aNSCLC patients received atezolizumab using machine learning.
Materials and Methods
This study analysized the association between baseline QoL and clinical outcome in aNSCLC patients received atezolizumab in 4 randomized clinical trials: the IMpower150 study (discovery cohort), the BIRCH, OAK and POPLAR study (validation cohorts). We identified quality of life subtypes (QoLS) by consensus clustering in the discovery cohort and predicted them in external validated cohorts.
Results
We identified QoLS1 and QoLS2 via consensus clustering in the discovery cohort. Compared with QoLS2, patients in QoLS1 had a significantly longer median OS(13.14 vs. 21.42 months, hazard ratio [HR] 2.07 [1.64–2.62]; p < 0.0001) and PFS(5.7 vs. 8.3 months, HR 1.70 [1.42–2.04]; p < 0.0001), and higher clinical benefit rates( 68% vs 57% ,p = 0.0027) with 6, 12 and 24-month time-dependent AUC of 0.61, 0.6 and 0.53 for OS, respectively. We observed similar favorable trends for OS (p < 0.0001) for predicted QoLS1 in the external cohorts using the PAM algorithm. Additionally, QoLS1 served as a strong predictive biomarkers for atezolizumab (ICI)-treated aNSCLC patients in comparison with chemotherapy (non-ICI)-treated patients regarding OS in both the IMpower150 trial (QoLS1: HR ICI vs. non−ICI = 1.30, p = 0.04; QoLS2: HR ICI vs. non−ICI = 1.21, p = 0.2) and the OAK + POPLAR trials (QoLS1: HR ICI vs. non−ICI = 1.27, p = 0.007; QoLS2: HR ICI vs. non−ICI = 1.21, p = 0.07).
Conclusions
Our study demonstrated the potential of integrative machine learning in effectively analyzing QoL and predicting clinical outcomes in aNSCLC patients undergoing atezolizumab immunotherapy.
Poisson Network SIR Epidemic Model
Authors: Wairimu Josephine , Gothard Andrew , Rempala Grzegorz 
Published: December 2024

Abstract

We extend the classical Susceptible-Infected-Recovered (SIR) model to a network-based framework in which node degrees follow a Poisson distribution. This extension incorporates an additional parameter representing the mean node degree, allowing for the inclusion of heterogeneity in contact patterns. Using this enhanced model, we analyze epidemic data from the 2018-20 Ebola outbreak in the Democratic Republic of the Congo, employing a survival approach combined with the Hamiltonian Monte Carlo method. Our results suggest that network-based models can more effectively capture the heterogeneity of epidemic dynamics compared to traditional compartmental models, without introducing unduly overcomplicated compartmental framework.
“Funny” Edge of Ageism – Representations of Old People in Domestic Humour
Authors: Banić Grubišić Ana , Milosavljević Ljubica , Ajduk Marija 
Published: December 2024

The central topic of the paper is the humoristic production during the COVID-19 pandemic. The chief focus is on the main representations of the eldest members of the society during this dramatic period, when they were declared to be the most endangered, but also the ones who endanger others by their vulnerability. The research was limited to the first year of the critical period, when the state of emergency was declared, from March 15th to May 6th 2020, with the aim to observe the phenomenon of old age in the local humoristic discourse from the synchronic perspective. In this manner, it was possible to map the different ways of making jokes on old age.
The analytic material, on the basis of which the conclusions were drawn, included both the traditional and contemporary modes of humour in which the elder people are the main actors. It was thus possible to discern which characteristics and actions are ascribed to the elder in the traditional, verbal jokes, as well as in the contemporary multi-media humoristic contents. The material included the oral jokes on the elder (verbal jokes on “grandmas and grandpas” on the Internet) as well as Internet memes with the theme of the old age, that appeared and circulated in Serbia during the period under analysis. The paper aims to contribute to the understanding of the particular forms of making jokes in the key of the so-called fourth ageism, linked to the most endangered old members, both in terms of health and social factors, in the society characterized by the wide-ranging paternalism.
W poszukiwaniu źródeł inspiracji dla pomników nagrobnych na cmentarzach warszawskich
Authors: Wiraszka Marta 
Published: December 2024

Przedmiotem analizy formalno-ikonograficznej jest pięć pomników nagrobnych upamiętniających komisarza ekonomicznego Siedleckiej Izby Skarbowej Stanisława Wrońskiego (zm. 24 XI 1874, lat 48), prezydenta m. Warszawy Kazimierza Woydę (zm. 15 V 1877, lat 65), dyrektora kancelarii Izby Obrachunkowej Aleksandra Ławrynowicza (zm. 2 V 1879, lat 70), znajdujące się na cmentarzu Powązkowskim, oraz Wilhelma Thiela, majstra piekarskiego (zm. 20 IX 1882, lat 43) i małżonków Huhle, Elżbiety (zm. 17 V 1841, lat 49) i Jana Piotra (zm. 27 I 1847, lat 61), pochowanych na cmentarzu ewangelicko-augsburskim przy ul. Młynarskiej w Warszawie. Pierwowzorem dla tych nagrobków były projekty wirtemberskich architektów Wilhelma Bäumera (1829–1895) i Conrada Dollingera (1840–1925) opublikowane w „Gewerbehalle” – czasopiśmie poświęconemu różnym gałęziom przemysłu artystycznego, którego założycielami i pierwszymi redaktorami byli architekt Wilhelm Bäumer i rysownik Julius Schnorr. Miesięcznik ten drukowany był w Stuttgarcie przez wydawnictwo J. Engelhorna w latach 1863–1893.
Financial Self-Efficacy Research: A Systematic Bibliometric Mapping (1994-2023)
Authors: Jisa Babu  , G. Velmurugan  
Published: December 2024

Financial self-efficacy portrays the confidence of an individual in prudent financial decision-making. The study aims to conduct a comprehensive bibliometric and systematic mapping analysis across three transformative decades from 1994 to 2023, revealing the evolving phases of financial self-efficacy. The study has systematically filtered data from the Scopus database using PRISMA guidelines. The study retrieved 201 articles after data extraction, refining, and filtration processes. The study aims to explore the research output of scholarly shifts, geographical contributions and thematic development of articles on financial self-efficacy by identifying the prominent research gaps in the studies. It also reveals an exponential growth in financial efficacy since 2018. The growth has persisted notably in countries like the United States, Malaysia and India. The findings provide a comprehensive overview of financial self-efficacy research, informing future research directions and policy development. The study contributors have transferred innovative insights into the core research areas of financial behaviour, literacy, and psychological mechanisms. Despite this progress, the study has found knowledge gaps in Fintech and long-term financial education programs in the emerging era. This review study reveals a complex interplay among the unexplored avenues that demand scholarly attention. The study identifies these research frontiers and provides a strategic roadmap for academicians, policymakers, and practitioners committed to enhancing financial well-being.
Comparison of Da Vinci XI and Da Vinci SI Surgical Systems in Robot-Assisted Radical Prostatectomy
Authors: Papoyan A. O. , Urmantsev M. F. , Pavlov V. N. 
Published: December 2024

Introduction. Robot-assisted radical prostatectomy is considered to be the “gold standard” for the radical treatment of prostate cancer, achieving excellent oncological outcomes with a low incidence of complications.Aim. To analyze and compare the efficiency of Da Vinci Xi and Da Vinci Si surgical systems applied in performing robot-assisted radical prostatectomy. Materials and methods. 165 patients were divided into two groups: Xi-group (n = 77) and Si-group (n = 88). The perioperative characteristics and oncological outcomes were analyzed and compared.Results. The demographic, clinical, and oncological characteristics of the two patient groups appeared similar and comparable. Interventions involving the preservation of the neurovascular bundle, the pelvic fascia, and the puboprostatic ligament were performed using Xi system significantly more often. The surgery duration was significantly shorter in the Xi-group. The postoperative recovery time and the incidence of postoperative complications appeared to be identical across both groups. No differences were revealed in the rates of positive surgical margins or biochemical recurrence.Discussion. Reasons behind the reduced operative time were considered as follows: first, the docking of the Xi system is more user-friendly, resulting in decreased docking time; second, the operational efficiency of the Xi system had been enhanced, thereby leading to reduced workflow times; third, a number of collisions between robotic arms was significantly lower during the procedure, which accelerates the surgical process.Conclusion. A robot-assisted radical prostatectomy performed by an experienced professional, using the Da Vinci Xi or Da Vinci Si surgical systems, appears to be safe and feasible without an increased risk of serious complications. However, the Xi system ensures better perioperative outcomes with comparable oncological results.
Implantation Antimicrobial Prophylaxis In General and Military Field Surgery
Authors: Plechev V. V. , Timerbulatov M. V. , Sufiyarov I. F. 
Published: December 2024

Introduction. Surgical site infections of the postoperative period are well recognized as one of the most pressing issues in modern surgery. Surgical site infections significantly complicate the postoperative course, necessitates costly treatment, and may require additional surgical interventions, thereby extending hospital stays and adversely impacting quality of life of the patients. The suture material can facilitate the adhesion of microorganisms to its surface; thus, it is considered as one of the important factors contributing to the development of surgical site infections.Aim. To evaluate and compare the clinical experience of applying the Abaktolat suture material featuring an antimicrobial coating used during surgical interventions.Materials and methods. A retrospective randomized study was conducted involving 49287 patients who were treated across five various medical institutions primarily for abdominal pathologies. The Abaktolat suture material was applied in 25749 patients, of whom 15626 (60.7%) underwent emergency surgeries, while 10123 (39.3%) underwent elective procedures. The second group included 23538 patients who received standard suture material.Results and discussion. The study demonstrated a statistically significant reduction in the incidence of postoperative infectious complications during emergency surgeries by more than four times (RR 4.23, 95% CI (4.08–4.96), p < 0.0001), and almost by two times during elective surgeries (RR 1.96, 95% CI (1.62–2.37), p < 0.0001) in the group that received Abaktolat, compared to those receiving standard suture materials. In addition, the average length of hospital stay was reduced by 21.6% (2.6 days).Conclusion. Thus, the use of the Abaktolat suture material is a justified method for the prevention of surgical site infections, particularly in emergency surgery settings. This approach significantly reduces the incidence of infectious complications during the postoperative period, enhances the overall quality of recovery, and leads to substantial financial savings in the treatment of surgical patients.
Clinical Case of Posterior Reversible Encephalopathy Syndrome in a Female Patient Undergoing Surgery for Rectal Cancer
Authors: Geraskinа M. M. , Galitsynа A. B. , Shuvaev V. A. , Gosteva S. S. 
Published: December 2024

Introduction. Posterior reversible encephalopathy syndrome (PRES) refers to a relatively obscure syndrome with unclear pathogenesis, leading to patient disability, occurring in 58% of cases against a background of arterial hypertension. Clinical manifestations include cephalalgia, epileptic seizures, and visual disturbances, potentially culminating in complete blindness. The clinical case represents a rare life-threatening condition that may pose challenges for an attending physician regarding the appropriate therapeutic strategy.Aim. To demonstrate the occurrence of posterior reversible encephalopathy syndrome during an anterior resection of the rectum, as well as to discuss the correct therapeutic strategy.Materials and methods. A 63-year-old female patient with a history of chronic arterial hypertension was admitted for surgical intervention due to rectal cancer. The operation was performed under general anesthesia and marked by unstable hemodynamics, with blood pressure rising to 160/100 mmHg. After awakening, the patient exhibited loss of vision and coordination disturbances, accompanied by uncontrolled arterial hypertension, with blood pressure rising to 182/130 mmHg. Magnetic resonance imaging revealed areas of hyperintense signal bilaterally in the occipital lobes without signs of diffusion restriction. The neurological deficits were managed through a comprehensive therapeutic regimen, utilizing nootropics, antioxidants, and antihypoxic agents, in conjunction with appropriate antihypertensive treatment. Vision was restored within two weeks.Results and discussion. The management of posterior reversible encephalopathy syndrome following a hypertensive crisis during surgical intervention should encompass etiological treatment, alongside correction of neurological symptoms utilizing relevant pharmacological agents. An appropriate and timely treatment obtains high potential to resolve the syndrome.Conclusion. Posterior reversible encephalopathy syndrome may develop in patients with a history of arterial hypertension and manifest as a sudden onset of hemodynamic instability during and after surgical intervention, potentially leading to cortical blindness. In such cases, antihypertensive therapy, in conjunction with corrective medications, is advisable.
Acute Pancreatitis (A Clinical Case)
Authors: Khripun A. I. , Alimov A. N. , Orlov S. Yu. , Chelyapina T. P. 
Published: December 2024

ntroduction. The diagnosis of acute pancreatitis poses no significant difficulties. Nonetheless, accurately predicting the potential severity of the disease during its early stages remains a challenge with existing diagnostic methods. Delayed diagnosis of pancreatic necrosis and the late initiation of intensive therapy contribute to a more severe disease course.Materials and methods. The paper presents a case of recurrent choledocholithiasis as a complicating factor in acute biliary pancreatitis in a 58-year-old woman. A standardized technique of endoscopic ultrasound allowed for the timely identification of signs indicative of developing pancreatic necrosis, enabling the prevention of its progression through papillary sphincterotomy, choledocholithotripsy, and pancreatic stenting.Results and discussion. Endosonographic features of pancreatic necrosis are visualizable in the early stages of acute pancreatitis. Changes such as Wirsung duct dilation and hypoechoic lesions in the pancreatic parenchyma provide grounds for pancreatic duct stenting with an expected clinical efficacy. The performance of endoscopic retrograde interventions in acute pancreatitis, including pancreatic stenting in particular, can halt the progression of pancreatic necrosis and contribute to a more rapid clinical and laboratory recovery.Conclusion. The presented case demonstrates the high informativeness and effectiveness of endoscopic methods in the early diagnosis and treatment of acute biliary pancreatitis.
Implementasi Sistem ERP Modul Pos Dan Manajemen Karyawan di KB/TK Alfath Malang
Authors: Apriyani Meyti Eka , Hamdana Elok Nur , Pamenang M. Unggul , Pramudhita Agung Nugroho , Aji Deddy Kusbianto Purwoko , Zuraida Vit 
Published: December 2024

Pengabdian masyarakat ini dilaksanakan untuk mengatasi berbagai permasalahan yang dihadapi oleh TK Alfath, khususnya dalam hal kebutuhan akan sistem Point of Sale (POS) dan modul employee untuk manajemen administrasi yang lebih baik. Melalui program ini, dilakukan pendampingan kepada guru KB/TK Alfath selaku pemegang proses kegiatan. Selain itu, program ini juga mengembangkan dan implementasi sistem POS serta modul employee. Integrasi antara POS dan Employee memiliki potensi besar untuk memudahkan pengelolaan persediaan, pemesanan barang, dan manajemen sumber daya manusia. Integrasi antara POS dan Employee akan menciptakan sistem yang terpadu, memungkinkan pemantauan yang lebih akurat terhadap pemesanan produk yang dibutuhkan dan manajemen karyawan yang lebih efisien.
Tujuan dari program ini adalah untuk meningkatkan kualitas manajemen serta meningkatkan efisiensi operasional sekolah. Hasil dari program ini diharapkan dapat memberikan kontribusi positif terhadap peningkatan kualitas pendidikan di TK Alfath serta membantu dalam mengatasi berbagai permasalahan yang dihadapi.