bluuebunny/crossref_metadata_2025_split huggingface dataset:
FUNCTIONAL OUTCOME OF PATIENTS WITH OSTEOARTHRITIS KNEE TREATED BY INTRAARTICULAR INJECTIONS OF PLATELET-RICH PLASMA
Authors: VIKAS KUNTWAD  , PRAMOD PRALHAD TUPE  , AMOL WAGH  
Published: December 2023

Objectives: The aims and objectives of the study are (1) to assess pain relief and functional outcome in knee osteoarthritis (OA) cases treated by intra-articular injection of platelet-rich plasma (PRP) and (2) to study the complication in patients treated by intra-articular injection of PRP.
Methods: This was a prospective study conducted in the department of orthopedics of a tertiary care medical institute. 60 patients with Grade 2 and Grade 3 OA of knee were included in this study on the basis of a pre-defined inclusion and exclusion criteria. All patients were treated by intra-articular injection of PRP. Patients were followed up for 6 months. During follow-up visits, assessment of severity of pain and functional outcome was done by Visual Analog Scale (VAS) Score and Japanese Orthopedic Association (JOA) Score. Patients were also assessed for complications. p<0.05 was taken as statistically significant.
Results: Out of 60 studied cases, there was a female preponderance with a M: F ratio of 1:0.62. The mean age of affected cases was found to be 65.84±11.86 years and mean duration of symptoms was found to be 2.52±1.26 years. Majority of the patients were either overweight (45.00%) or obese (36.67%) and only 11 (18.33%) patients had a healthy weight. 38 (63.33%) patients were having Grade 3 OA whereas 22 (36.67%) patients were having Grade 2 OA. There was a significant reduction in pain and significant functional improvement at the time of final follow-up as compared to VAS and JOA scores at the time of presentation (p<0.0001). Complications were seen in any of the cases.
Conclusion: Patients with Grade 2 and Grade 3 OA of knee treated by intra-articular injection of PRP show excellent outcome in terms of pain relief and functional outcome with no significant complications.
Transurethral versus open enucleation of the prostate in Sweden – a retrospective comparative cohort study
Authors: Bohlok Jessica , Söderberg Rajne , Patschan Oliver 
Published: December 2023

Objective: To investigate if treatment with transurethral enucleation of the prostate (TUEP) during the learning curve is as efficient and safe in the short term as transvesical open prostate enucleation (OPE), in patients with benign prostatic obstruction (BPO) > 80 ml in a population in Sweden.
Methods: 54 patients with ultrasound verified BPO > 80 ml and indication for surgery underwent TUEP or OPE between 2013 and 2019. Peri- and postoperative outcome variables regarding voiding efficiency and morbidity from 20 OPE at Skåne University Hospital (SUS) and from the first 34 TUEP performed at SUS and Ystad Hospital were retrospectively assembled. Follow-up data from the first 6 postoperative months were collected by chart review.
Results: Intraoperative bleeding during TUEP was less than in OPE (225 ml vs. 1,000 ml). TUEP took longer surgery time than OPE (210 vs. 150 min.). Within 30 days postoperatively, bleeding occurred less often after TUEP (23% vs. 40%), requiring one fourth of the blood transfusions given after OPE. After TUEP, patients had shorter hospitalisation (3 days vs. 7 days) and catheterisation time (3 days vs. 12 days). During the 6-month follow-up period, incontinence and UTI defined as symtomatic significant bacteriuria (urinary culture) were observed as main complications after TUEP and OPE. Functional outcome data availability (International Prostate Symptom Score [IPSS] questionnaire, uroflowmetry, residual urine) were limited.
Conclusions: Treatment with TUEP during the learning curve led to less bleeding, shorter hospitalisation- and catheterisation time than treatment with OPE. However, surgery time was shorter with OPE. There were no major differences between the groups concerning mid-term functional outcomes, with the reservation of an inconsistent follow-up.
Wear Reduction in Heavily Loaded Units of Transport Vehicles
Authors: Demyanov A. A. , Shcherbakov I. N. 
Published: December 2023

Introduction. The pivot assembly provides connection between the rotating and non-rotating parts of machines and mechanisms such as cranes, excavators, trailers, railway rolling stocks. In relation to rolling stock, it connects the load-carrying part of the car with the bogie and is one of the most critical and wear-out friction units. Its technical condition affects the intensity and form of wear of the surfaces themselves, the amount of resistance to rotation of the bogie when the car moves in curved sections of the track, the amplitude of the lateral rocking of the car, the intensity of wear of the wheel flanges and, as a consequence, the safety of operation of the rolling stock as a whole. Until now, periodic grease is used for this unit, which, even with a short mileage, manages to be squeezed out of the contact zones and, thereby, creates conditions for the predominance of dry friction. Until now, various proposals to solve this problem have not found application in mass production for a number of reasons, and therefore the search for ways to reduce wear in the pivot assembly of cars is still relevant. This study proposes a solution to this problem that does not require structural changes to the pivot assembly itself. The aim of this work was to develop a technologically advanced anti-friction coating with good adhesion, which will be applied to the surface of a replaceable disk installed between the rubbing surfaces of the pivot assembly during scheduled repairs of the car chassis. This approach will reduce the friction force and wear rate in the unit when lubrication shortage occurs due to squeezing out of the grease. Materials and Methods. Antifriction characteristics of the developed coating was observed on a friction machine providing specific loads on the test sample up to 5000 N and a sliding speed from 0.13 m/s. The samples were examined by scanning electron microscopy (FEI Quanta 200 microscope). SEM images were acquired in a back-scattered electron (BSE) mode using a semiconductor detector. To analyze the elemental composition of beam samples, an energy dispersive spectrometer (EDAX Element EDS system) was used. Results. A three-layer functional phosphorus-containing composite coating of the surfaces of the unit was developed, which made it possible to significantly reduce the coefficient of friction and, as a consequence, the intensity of wear of the pivot unit surface during dry friction. The optimal conditions for obtaining composite coating layers were determined. The influence of the thickness of each layer and the conditions for its production on its functional characteristics was studied. Discussion and Conclusion. The proposed solution is manufacturable and, with appropriate adaptation, can be used to reduce wear in any open pivot assembly without radically changing its design. The methods for producing coating layers are accessible and technologically advanced for serial use.
Analysis of Water Consumption during Fire Extinguishing at Objects of Different Functional Fire Hazard Classes
Authors: Kondashov A. A. , Bobrinev E. V. , Udavtsova E. Yu. , Ryumina S. I. 
Published: December 2023

Introduction. Fire-fighting water supply systems play a primary role in ensuring effective fire extinguishing. Many researchers both in our country and abroad have considered the requirements for fire-fighting water supply and problematic issues in this area. At the same time, in order to update the requirements for fire-fighting water supply, it is necessary to study the actual water consumption on fires, taking into account the characteristics of fire objects. The aim of this research was to analyze the water consumption for outdoor firefighting depending on the characteristics of the fire object and compare the actual water consumption with the requirements of regulatory documents on fire safety. Methods and Materials. The authors used statistical data on fires in the Russian Federation for 2019–2021 from the federal state information system "Federal Database "Fires". Methods of statistical data analysis and classification of statistical data were used to determine the actual water consumption for outdoor firefighting, depending on the class of functional fire hazard of the fire object. Visualization of the obtained results was performed by the method of graphical representation of data in the form of histograms and pie charts. Results. The analysis showed that the highest average water consumption was required for objects of the functional fire hazard class F1.2 "hotels, dormitories (with the exception of apartment-type dormitories), dormitory buildings of sanatoriums and rest homes of general type, campsites" — 10.7 l/s. For apartment buildings, the highest average water consumption was required to extinguish fires that had arisen in the attic — 10 l/s and in the garret — 9.2 l/s. Discussion and Conclusion. The results of the analysis can be used to clarify the requirements for water consumption for outdoor firefighting, depending on the functional fire hazard class of the object and the number of floors of buildings. In order to meet these requirements, regular monitoring of fire-fighting water supply systems is required, as well as timely maintenance and repair of external and internal fire-fighting water supply systems.
Simulation Modeling of the Process of Accident Risk Realization during Stripping Operations at an Open-Pit Coal Mine
Authors: Kovalev M. A. , Moskvichev V. V. 
Published: December 2023

Introduction. The need to increase the level of comprehensive safety, reduce accident and injury rates, minimize the risk of failures, accidents and catastrophes determines the relevance of research on the relationship of elements of the "human–machine–environment" (H–M–E) system during open-pit mining. One of the most effective mechanisms for studying the functional characteristics of the H–M–E system of a coal mine is to conduct simulation modeling in order to identify problematic situations that trigger accidents with catastrophic consequences and injury to personnel. Simulation modeling of a technological process involves constructing a model of a real system and setting up computational experiments to describe the behavior of the system and evaluate various strategies that ensure its functioning. The aim of the research was to adapt simulation modeling technologies to solve the problem of complex safety during open-pit mining. Within the framework of the study, the task was to determine the elements that made the greatest contribution to the implementation of risks in the H–M–E system during stripping operations at a coal mine. The simulated subsystems were "human", "machine", "environment", and "weather conditions". Materials and Methods. Stripping process was considered in the ARIS eEPC (extended Event Driven Process Chain) methodology as a business process linking a set of subprocesses and/or business operations. To build a simulation model in the AnyLogic software environment, the business process of stripping works in ARIS eEPC notation was described by a graph representing a structure consisting of objects and connections between them. This approach allowed us to structure the sequence of events and operations and determine alternative outcomes that arose during stripping operations. Results. As part of the research, a method was developed for translating the formal model of the stripping business process in ARIS eEPC notation into a combined simulation model of AnyLogic. Based on the developed method, a series of machine experiments was carried out. The elements influencing the realization of the risk of accidents in the H–M–E system of a coal mine were determined. Discussion and Conclusion. For the first time in the domestic practice of research of the H–M–E system, simulation modeling technologies have received an application for the analysis of complex safety indicators during open-pit mining. According to the simulation experiment results, it was found that the main influence on the decrease in the reliability of the "machine" subsystem was exerted by the human factor, which, together with the psychophysiological properties of a person, enhanced the development of the domino effect when implementing various types of risks. The presented results and experimental approbation of simulation modeling technology can have advanced use in the analysis of complex technical systems safety, taking into account the influence of human and man-made factors.
PENGARUH DESENTRALISASI FISKAL DAN TENAGA KERJA BERIJAZAH SMA TERHADAP PEREKONOMIAN KABUPATEN KOTA PROVINSI LAMPUNG
Authors: Rahman Taufiqur , Supaijo Supaijo 
Published: December 2023

Abstrak

Desentralisasi fiskal dan pertumbuhan ekonomi merupakan dua bahasan utama yang terus menjadi pembahasan. Kedua topik ini seperti tidak habis diteliti mengingat hubungan penting antara keduanya. Hubungan tersebut lebih spesifik diteliti dalam ranah ekonomi yaitu apakah desentralisasi fiskal berpengaruh positif ataukah berpengaruh negatif terhadap pertumbuhan ekonomi. Memang dari berbagai penelitian mengenai desentralisasi fiskal dan pertumbuhan ekonomi yang telah dilakukan sebelumnya terdapat hasil yang berbeda. Penelitian ini bertujuan untuk menganalisis pengaruh desentralisasi fiskal dan tenaga kerja berijazah SMA terhadap pertumbuhan ekonomi Kabupaten dan Kota di Provinsi Lampung secara parsial dan keseluruhan.
Data yang digunakan dalam penelitian adalah data sekunder dari 3 daerah di Provinsi Lampung periode 2016-2020. Pengujian hipotesis dilakukan dengan metode Analisis Regresi Data Panel dengan menggunakan program Eviews 10.0 untuk menganalisis pengaruh Desentralisasi Fiskal dan Tenaga Kerja Berijazah SMA terhadap Pertumbuhan Ekonomi Kabupaten dan Kota di Provinsi Lampung. Uji yang digunakan adalah uji Chow, uji Hausman, uji t dan uji F.
Hasil Uji Chow menunjukkan bahwa metode fixed effect lebih baik dari metode common effect yang digunakan dalam penelitian ini. Hasil Uji Hausman menunjukkan bahwa metode random effect lebih baik digunakan daripada metode fixed effect dalam penelitian ini sehingga model yang digunakan adalah random effect . Analisis data menunjukkan bahwa Desentralisasi Fiskal sisi Pengeluaran dan Tenaga Kerja berijazah SMA secara bersama berpengaruh positif dan signifikan terhadap Pertumbuhan Ekonomi Kabupaten dan Kota di Provinsi Lampung. Secara parsial, Desentralisasi Fiskal sisi Pengeluaran, dan Tenaga Kerja berpengaruh positif dan signifikan terhadap Pertumbuhan Ekonomi Kabupaten dan Kota di Provinsi Lampung.

Kata Kunci : Desentralisasi Fiskal, Tenaga Kerja, Pertumbuhan Ekonomi, dan Data Panel.
Noninvasive evaluation of dynamic microvascular dysfunction in ischemia and no obstructive coronary artery disease patients with suspected vasospasm
Authors: Dikic Ana Djordjevic , Dedic Srdjan , Jovanovic Ivana , Boskovic Nikola , Giga Vojislav , Nedeljkovic Ivana , Tesic Milorad , Aleksandric Srdjan , Cortigiani Lauro , Ciampi Quirino , Picano Eugenio 
Published: December 2023

Introduction
In patients with ischemia and no obstructive coronary artery disease (INOCA), a dynamic coronary microvascular dysfunction (CMD) is frequent but difficult to capture by noninvasive means.

The aim
of our study was to assess dynamic CMD in INOCA patients with stress echocardiography after vasoconstrictive and vasodilator stimuli.

Methods
In this prospective single-center study, we have enrolled 40 INOCA patients (age 56.3 ± 13 years, 32 women). All participants underwent stress echocardiography with hyperventilation (HYP), followed by supine bicycle exercise (HYP+EXE) and adenosine (ADO). Stress echocardiography included an assessment of regional wall motion abnormality (RWMA) and coronary flow velocity (CFV) in the distal left anterior descending (LAD) coronary artery.

Results
HYP induced a 30% increase in rate pressure product (rest = 10 244 ± 2353 vs. HYP = 13 214 ± 3266 mmHg x bpm, P < 0.001) accompanied by a paradoxical reduction in CFV (HYP< rest) in 21 patients (52%). HYP alone was less effective than HYP+EXE in inducing anginal pain (6/40, 15% vs. 10/40, 25%, P = 0.046), ST segment changes (6/40, 15% vs. 24/40, 60%, P < 0.001), and RWMA (6/40, 15% vs. 13/40, 32.5%, P = 0.008). ADO-induced vasodilation was preserved (≥2.0) in all patients.

Conclusion
In patients with INOCA, a coronary vasoconstriction after HYP is common, in absence of structural CMD detectable with ADO. HYP+EXE test represents a more powerful ischemia inducer than HYP alone. Stress echocardiography with LAD-CFV may allow the noninvasive assessment of dynamic and structural coronary microcirculation during stress.
Neutron Reflectometry Study of Transformer Oil-Based Magnetic Fluid Under Electric Field
Authors: Karpets Maksym , Rajňák Michal , Timko Milan , Kopčanský Peter , Petrenko Viktor , Gapon Igor , Kosiachkin Yehor 
Published: December 2023

Abstract
This paper is focused on characterization of magnetic fluids (MFs) and experimental investigation of interfacial structural changes in transformer oil-based magnetic fluids (TOMFs) under the influence of electric field. Recently, such nanodielectric fluids have been proposed to be used as transformer liquid insulation as the addition of particles seeks to improve the dielectric and thermal properties of the base liquids. Ferrofluids typically respond to electric and magnetic fields and can be easy manipulated by such external fields. By mean of neutron reflectometry (NR), we show impact of the electric field intensity on magnetic nanoparticle aggregates in a dilute (1.8 vol %.) classical ferrofluid.
Comparative Study of Different MPPT Methods of a Boost Chopper of PV Generator
Authors: Bouri Sihem , Mekkaoui Oussama-Abdelfettah , Mamem Anes Mohammed 
Published: December 2023

Abstract
In this article, we focus on improving the performance and efficiency of photovoltaic systems. The main objective is to study and compare the performance of different MPPT methods, and to find the most efficient method (in terms of convergence speed, the MPP point where the oscillation is reduced), so that the generator of maximum power supplied by the photovoltaic can be extracted.. The main points involved in this research are: Modeling of the photovoltaic system Simulation of four MPPT algorithms. The simulation results are obtained using simulink in matlab.
Simulation and Laboratory Model of Small Hydropower Plant
Authors: Olexa Richard , Fedor Pavol 
Published: December 2023

Abstract
This paper is dedicated to the description of all our research done so far in the field of simulation of small hydropower plants as well as in creating a functional laboratory model based on the proposed simulation models. Comparing to the common structures, we propose some different approaches in modelling parts of the small hydropower plants, e.g. fuzzy model of the hydraulic turbine efficiency. Moreover, this simulation model is created directly for the small hydropower plants, thus it simplifies parts, that are commonly used in other scientific papers and simulate the phenomenon connected to the big scale hydropower plants structure and physical description. As a necessary step in the process of creation of universal laboratory model of a small hydropower plant that should be used for design and tuning purposes of new approaches of controlling such systems, we discuss the research and development phase that led to the final construction of the depicted laboratory model.
Number-Theoretic Transform with Constant Time Computation for Embedded Post-Quantum Cryptography
Authors: Kupcová Eva , Drutarovský Miloš 
Published: December 2023

Abstract
In this article, we describe the principles and advantages of using the Number-Theoretic Transform (NTT) in post-quantum cryptography. We deal with usages of NTT in post-quantum algorithms included in the competition announced by the National Institute of Standards and Technology. Attention is paid to the fast multiplication of polynomials using NTT and negacyclic convolution. We also focus on the existing implementation of NTT and its modifications to analyze the effectiveness of individual modifications. Separate attention is paid to the Constant Time implementation of NTT because the constant computation time of the transformation decreases a possibility of side channel attack. We describe measurements performed on OS Linux Ubuntu 20.04 LTS environment in Linux kernel mode, with the highest attention to the measurement executed on a microcontroller with an ARM 32-bit core. Measurements performed on microcontroller units are done using 32-bit and 16-bit arithmetic to demonstrate how to achieve constant computation time of the transformation. We present the results and analysis of measurements performed using modified implementations.
A Tag-Based Solution for Safer Parallel STL Usage
Authors: Barth Benjámin , Szalay Richárd , Porkoláb Zoltán 
Published: December 2023

Abstract
The continuous evolution of programming languages creates a challenge not only for the compiler implementers but also for the regular developers. The C++17 standard introduced the Parallel STL library, a parallel extension of the original and fundamental Standard Template Library (STL) with the promise to achieve safe, efficient, and scalable parallel programming in an easy way. While the syntax remained familiar, the new parallel algorithms introduced additional requirements, which are often ignored even by experienced programmers. In this paper, we investigate the root cause of the misuse of the Parallel STL. We carried out a classroom experiment to measure the programmers’ behaviour when programming using the Parallel STL and found that the major issue is not that their code would be erroneous, but the lack of awareness of the semantic requirements of parallel functors. While a fully automatic detection of erroneous constructs is computationally infeasible to achieve, we introduce a framework with which the developer will be able to indicate – axiomatically, based on absolute trust – that an operation has “safe” properties required by the algorithms. We implemented a prototype of the proposed framework to demonstrate its usability and effectiveness.
A Prototype of a Domain-Specific Modeling Language for Formal Specification of a Human Worker
Authors: Antanasijević Dajana , Ristić Sonja , Vještica Marko , Stefanović Darko , Dimitrieski Vladimir , Pisarić Milan 
Published: December 2023

Abstract
The application of innovative technologies that foster smart production resources’ interconnectivity alongside the virtual space that facilities to support process simulation makes the technology factor become the center of Industry 4.0. The production process modeling and simulation can be used to facilitate flexibility and automation of a shop floor. In our previous research, we have created a Domain-Specific Modeling Language (DSML) named MultiProLan, aiming to create production process models suitable for the automatic generation of executable code that enables the automatic execution of production processes. As the next step, we have proposed research on a DSML language aimed at Industry 4.0 human worker modeling. Industry 4.0 still considers workers as a cost, while favoring technological aspects over the workers’ wellbeing. Industry 5.0 complements Industry 4.0, focusing on a human-centric approach that puts core human needs and interests at the top of production processes. Based on our research proposal, here we present a blueprint of the HResModLan DSML prototype aimed at the formal specification of a human worker within Industry 5.0. Presented abstract and concrete syntaxes of the language are tested on a case study of a furniture factory to demonstrate whether they are a good base for the further development of the HResModLan language.