bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reliability of Towel Test for Elbow Flexion Assessment in Brachial Plexus Birth Palsy
Authors: Jerome J. Terrence Jose , Vanathi S. , Prabu G. Ramesh , Thirumagal K. 
Published: August 2021

AbstractBackground and Objectives The towel test is a reliable and straightforward technique to find elbow flexion in brachial plexus birth palsy. This study evaluates the role and reliability of towel test in children at 6 and 9 months of age.Materials and Methods We conducted the towel test in 30 consecutive children at 6 and 9 months of their ages between 2015 and 2020. We recorded the results along with the side involved in these children and the mother’s handedness. Based on the results of towel tests, we did a statistical correlation.Results Sixteen of the 30 children were boys. Twelve of the 30 children had left-side involvement. Four mothers were left handed. Four (13%) infants (male = 3; female = 1) had false-negative towel test at 6 and 9 months. There is a significant correlation between the left-hand mother’s and infant who had false-negative towel test (p < 0.01)Conclusion The towel test is reliable and straightforward to assess the elbow flexion at 6 and 9 months. It can be falsely negative in 13% of children because of handedness. Mother’s handedness is crucial and should be recorded during the children assessment. Alternate tests will further evaluate the elbow flexion in such false-negative towel-tested brachial plexus birth palsy children.
Platelet P2Y12 Receptor Deletion or Pharmacological Inhibition does not Protect Mice from Sepsis or Septic Shock
Authors: Rabouel Yannick , Magnenat Stéphanie , Delabranche Xavier , Gachet Christian , Hechler Beatrice 
Published: August 2021

Abstract
Introduction Platelets are increasingly appreciated as key effectors during sepsis, raising the question of the usefulness of antiplatelet drugs to treat patients with sepsis.
Objective Evaluate the potential contribution of the platelet P2Y12 receptor in the pathogenesis of polymicrobial-induced sepsis and septic shock in mice.
Methods The effects of P2Y12 inhibition using clopidogrel treatment and of platelet-specific deletion of the P2Y12 receptor in mice were examined in two severity grades of cecal ligation and puncture (CLP) leading to mild sepsis or septic shock.
Results Twenty hours after induction of the high grade CLP, clopidogrel- and vehicle-treated mice displayed a similar 30% decrease in mean arterial blood pressure (MAP) characteristic of shock. Septic shock-induced thrombocytopenia was not modified by clopidogrel treatment. Plasma concentrations of inflammatory cytokines and myeloperoxidase (MPO) were similarly increased in clopidogrel- and vehicle-treated mice, indicating comparable increase in systemic inflammation. Thrombin-antithrombin (TAT) complexes and the extent of organ damage were also similar. In mild-grade CLP, clopidogrel- and vehicle-treated mice did not display a significant decrease in MAP, while thrombocytopenia and plasma concentrations of TNFα, IL6, IL10, MPO, TAT and organ damage reached similar levels in both groups, although lower than those reached in the high grade CLP. Similarly, mice with platelet-specific deletion of the P2Y12 receptor were not protected from CLP-induced sepsis or septic shock.
Conclusion The platelet P2Y12 receptor does not contribute to the pathogenesis of sepsis or septic shock in mice, suggesting that P2Y12 receptor antagonists may not be beneficial in patients with sepsis or septic shock.
Quantitative Electroencephalogram in Pediatric Intensive Care Unit in Three Different Clinical Scenarios
Authors: Yetimakman Ayse Filiz , Kiral Eylem 
Published: August 2021

AbstractAlthough clinical judgement and sedation scales are primarily used in intensive care units (ICUs) to manage sedation, adjunctive data are needed to direct therapy with sedative and hypnotic agents to prevent side effects and long-term sequelae. In this case report, we described three cases where we used quantitative electroencephalogram (qEEG) data in a pediatric ICU (PICU); to manage these specific clinical situations and to identify the limitations of the qEEG data, two patients were admitted for post–cardiac arrest care and the third was admitted for status epilepticus. In post–cardiac arrest patients, qEEG was mainly used for monitoring depth of sedation and drug titration. Unnecessary use of high-drug doses was prevented, and monitoring also helped to guide clinical intervention for the management of seizure activity. In the patient with status epilepticus, qEEG data on burst suppression and depth of sedation were used. In this report, we describe three different cases where we used qEEG data in a PICU, to give insight on the use of data in specific clinical situations and to describe the limitations of the qEEG data monitoring system.
It matters to be in good hands: the relationship between good governance and pandemic spread inferred from cross-country COVID-19 data
Authors: Nabin Munirul H. , Chowdhury Mohammad Tarequl Hasan , Bhattacharya Sukanto 
Published: August 2021

AbstractThis study examines the relationship between good governance and pandemic control using month-wise COVID-19 pandemic data within a time window from April to September 2020. The study argues that countries with better governance are more capable of adopting and implementing appropriate policies and that such governments are considered more trustworthy by their people. Combined, these factors enable such countries to better control a pandemic like COVID-19. Using several measures of good governance and two measures of pandemic spread, namely the COVID-19 positive rate and the COVID-19 growth rate, this paper tests its argument econometrically in a sample of 185 countries. The results show the existence of a significant inverse relationship between all measures of good governance, and the COVID-19 positive and growth rates. The significant inverse relationship largely persists even after controlling for continent-fixed effects and a host of geographic, demographic, and socio-economic factors. This indicates the presence of a strong systemic linkage between quality of governance and pandemic control. The findings empirically strengthen the argument of eminent medical historians concerning the importance of effective governmental intervention for epidemic control. The study reveals that the quality of governance is a key factor in a country’s success in pandemic management and encourages further investigation.
Variation in negation in Seto
Authors: Lindström Liina , Pilvik Maarja-Liisa , Plado Helen 
Published: August 2021

AbstractSeto is an exceptional language in the Uralic family due to its systematic use of postverbal negation, although preverbal and double negation marking are also used. Postverbal negation is still the most frequent and unmarked pattern occurring in about 74% of negative clauses in Seto. This paper analyzes variation between pre- and postverbal negation in East Seto (spoken in present-day Russia), based on data gathered during fieldwork trips in 2010–2013. By applying quantitative methods that are used in variationist studies (regression modelling, conditional inference trees, and random forests), we determine the variables affecting the choice between pre- and postverbal negation. Marked preverbal negation occurs more likely with first and third person, cognition verbs, and present tense, all of which are often used in fixed expressions likeI don’t know. We also found a strong structural persistence effect in the data and remarkable differences between individual speakers.
Size-specific dose estimates (SSDEs) for computed tomography and influencing factors on it: a systematic review
Authors: Satharasinghe D M , Jeyasugiththan J , Wanninayake W M N M B , Pallewatte A S 
Published: August 2021

Abstract
The actual dose received during a computed tomography (CT) examination depends on both the patient size and the radiation output of the scanner. To represent the actual patient morphometry, a new radiation dose metric named size-specific dose estimates (SSDEs) was developed by the American Association of Physicists in Medicine in 2011. The purpose of this article is to review the SSDE concept and the factors influencing it. Moreover, the appropriate methodology of SSDE determination and the application of SSDE as a diagnostic reference-level quantity is critically analyzed based on the data available in the literature. It is expected that this review could potentially increase awareness among CT users of the effective utilization of SSDE as a tool to aid in the optimization of radiation dose in CT.
Formalization of risk analysis in software products for calculating the effectiveness of investment projects
Authors: Zhichkin K , Nosov V , Zhichkina L , Aydinov H , Arefiev I , Cherepova T , Kuznetsova I 
Published: August 2021

Abstract
Simulation is the process of transforming real processes in a mathematical form using computer technology. The main type of quantitative risk analysis is the calculation of stability analyzes, among which there is main type - sensitivity analysis (analysis of overall project sustainability). The purpose of the study is to improve the methodology for formalized risk assessment in the simulation of investment projects. It includes the following tasks: -analysis of existing approaches to risk assessment in simulation; - identification of the problems of calculating the level of risk in the simulation models of investment projects; -improvement of existing software products for calculating the effectiveness of investment projects. Sensitivity analysis finds out the reaction of the project to changes in its main parameters. One-way sensitivity analysis, implemented in almost all software products, provides limited information. Therefore, it is proposed to supplement the possibilities of programs by introducing a two-way sensitivity analysis into the structure of the section to study the effect on the result of simultaneous changes in two significant environmental factors. The calculation results will be presented in tabular and graphical form to expand the analysis capabilities. On the graph, by separating the zone with negative values and marking it with a contrasting color, the zone with unacceptable values (which correspond to ineffective design options) is very clearly visible.
Formation of a system providing automated technological processes
Authors: Ermakova A M , Oznobikhina L A 
Published: August 2021

Abstract
The presented work analyzes the physical and technological processes occurring at different levels of enterprise functioning. The results obtained allowed the authors to form a system that would allow managing technological processes at various stages of production. The automated system “Vesta” was taken as a basis, which provides a stable technological and physical process. The authors describe the process of functioning of this system and new opportunities that open up for the successful functioning of physical and technological regional processes.
Big data: some ways to solve the problems of higher education
Authors: Denisova O A , Kunsbaeva G A , Chiglintsiva A S 
Published: August 2021

Abstract
The article deals with issues related to the transition to digitalization of higher professional education, as well as with the widespread use of distance education technologies. The analysis of methods for monitoring the quality of education of university students is carried out. There are five types of data that require the application of big data analysis methods: personal data; data on the interaction of students with and between e-learning systems; data on the effectiveness of educational material; administrative data; forecasts. To solve a number of problems, we propose the use of Education Data Mining technology, which will allow us to design digital education management systems based on data and ways to systematize them for making organizational, pedagogical and managerial decisions. The analysis of educational data is based on the prediction of models, the identification of learning structures, and the identification of relationships. The possible ways of developing the individual trajectory of a student studying at the university, his further caree.
The use of modeling in the teaching of geometry and graphic disciplines at the University
Authors: Vanshina Ekaterina A , Shevchenko Olga N , Malikova Olga N , Staselko Oksana L , Shusharina Irina V 
Published: August 2021

Abstract
1. Introduction: In connection with the introduction of new Federal state educational standards of higher education (FSES) to teachers of geometry graphic departments there was a problem with the revision of the contents and methodology of teaching disciplines “descriptive geometry”, “Engineering and computer graphics”, foundations of engineering education aimed at formation of basic knowledge for studying of the subsequent disciplines used graphic representation of information. The analysis of special literature has indicated that, despite the significant number of scientific publications on the research topic, the use of modeling in teaching geometric-graphic disciplines requires separate research. 2. Materials and methods: Study and analysis of scientific, educational and special literature on the research topic, comparison, systematization, synthesis, generalization. 3. Results: To implement modern teaching methods in the educational process in the geometric-graphic disciplines, the author applied the functionality of the system KOMPAS-3D and developed by: electronic slides based on the modeling included in the evaluation funds for engineering and computer graphics; set a clear three-dimensional (3D) models of twenty-assemblies products intended for assignments on practical and laboratory lessons on the computer in the system KOMPAS-3D to create an Assembly and working drawings; set of individual tasks designed to practical assignments on the computer in this system to create 2D-models of assemblies (Assembly drawings) and 2D models details (working drawings), associated with their three-dimensional models. 4. Discussion and Conclusions: Design and creation of didactic materials based on three-dimensional and flat modeling tools, methods and algorithms of computer graphics in the system KOMPAS-3D, their use in teaching geometric-graphic disciplines, the inclusion in the evaluation funds on descriptive geometry, engineering and computer graphics, contributes to the introduction of active learning methods to optimize the educational process of teaching of geometry and graphic disciplines.
Computer technologies in the education of mechanical engineers
Authors: Panasenko A N 
Published: August 2021

Abstract
The paper shows an example of using an algorithm for studying the mechanism by analytical methods in the process of teaching students the basics of the theory of mechanisms and machines. This method is also applicable for cam and gear mechanisms. The algorithm is based on an object-oriented approach and represents the mechanism as a set of objects of two types: links and kinematic pairs. The objects of the mechanism are characterized by matrices: functions of position, incidence, inertial characteristics, and active force action. The algorithm allows you to write the result of the analysis of the mechanism in a closed form and implement it in the framework of a mathematical package.
Decision Trees-based Anomaly Detection in Computer Assessment Results
Authors: Panasov V L , Nechitaylo N M 
Published: August 2021

Abstract
A survey of the current software in the area of computer assessments of students at a university is done. This work shows ways to improve quality of computer assessments and educational management. It suggests options to build a computer system for detecting anomalous assessment results of individual students and entire disciplines. This information could then be used to amend lectures and instructional material or management and better intercommunication to students. This work suggests feature sets for the analysis of student assessment results and demonstrates their availability in the current university software. After surveying known artificial intelligence systems this work proves the choice of decision trees for this problem. It suggests methods and algorithms to improve positive prediction rate of decision trees based on ideas of bootstrap method. A software tool was developed that implements the suggested algorithms.
Educational digital tools for university level under climate change and COVID-19
Authors: Abramov V M , Tatarnikova T M , Sikarev I A , Shilin M B , Chusov A N 
Published: August 2021

Abstract
Paper considers educational digital tools development results for university level within geo-information management paradigm during Industry 4.0 era under climate change and COVID-19. While research, authors used modern web-technologies for educational platforms design. Recently, the ways of geo-information support for environmental economics have distinct features of digitalization with new concepts in data obtaining and presenting. In paper, preference is given to the use of open online platforms, which integrate heterogeneous hardware and software resources with the use of web-technologies in distributed networks and wide application of cloud services. There are considered examples of presented digital tools using. The presented research results have significant scientific novelty can be used in training and educational purposes at university level, including the preparation of Master’s programs.
Effects of Thermal Annealing on the Electrical Properties and Stability of Pt Thin Film Resistors with Ti and PtxOy Interlayers
Authors: Pang Yawen , Zhang Congchun , Lei Peng , Wang Yusen , Lv Zhenjie 
Published: August 2021

Abstract
Influences of annealing temperature on microstructure, electrical properties, stability, and film adhesion of Pt thin film resistors with Ti interlayer and PtxOy interlayer were investigated and compared. Pt thin films were deposited on Al2O3 substrates with Ti interlayer and PtxOy interlayer, respectively. Two resistors showed different microstructures after annealing. Pt/PtxOy film resistor owed more stable resistance value and larger temperature coefficient of resistance (TCR) than those of Pt/Ti film resistor. Annealed Pt/Ti film resistor exhibited poor stability than Pt/PtxOy film resistor and the stability became worse with increasing annealing temperature. In addition, the film adhesion of two resistors was discussed.
Preparation and Performance Evaluation of Non-Sticky Wheel Emulsified Asphalt
Authors: Wang Jia , Zhang Lu , Zhang Dongliang , Lu Huali 
Published: August 2021

Abstract
The existing emulsified asphalt has the defect of adhesion to construction vehicle tires, which leads to the failure of interlayer adhesion. From the softening point of improving the evaporation residue of emulsified asphalt, Non-sticky wheel emulsified asphalt was prepared with different matrix asphalt, modifier and modifier dose. Combined with the standard viscosity, storage stability and evaporation residue of emulsified asphalt, the technical properties of Non-sticky wheel emulsified asphalt were analyzed. The viscosity wheel performance of Non-sticky wheel emulsified asphalt was tested by viscosity wheel performance test. Compared with ordinary emulsified asphalt and SBR modified emulsified asphalt sold in the market, its non-stick wheel effect is significant under the condition of 60°C, which has good engineering practical application value.
The Influence of Laser Power and Butt Gap on the Droplet Transfer and Weld Formation of Laser Arc Hybrid Welding
Authors: Jing Haohao , Ye Xin , Hou Xiaoqi , Qian Xiaoyan , Zhang Peilei , Yu Zhishui , Wu Di , Fu Kunjun 
Published: August 2021

Abstract
In this study, an 8mm thick AH36 steel plate was welded using laser + MAG hybrid welding technology. The results show that when the laser power is low, the droplet transition form is droplet transition, the droplet size is larger, and the transition frequency is low. As the laser power increases, the form of droplet transition is jet transition, the droplet size is small, and the transition frequency is high. When the laser power is low, the undercut phenomenon of the weld is serious. With the increase of the laser power, the undercut phenomenon of the weld is improved. Besides, the weld width and welding seam reinforcement will also increase. Laser-arc hybrid welding has a certain gap adaptability. When the laser power is 10KW, the weld profile of 0mm welding gap and 1mm welding gap are basically the same. Properly reducing the laser power is conducive to the larger welding assembly gap of laser arc hybrid welding.
Application of Scanning Electron Microscopy in Metal Material Detection
Authors: Yu Ting , Zhong Fengping , Zhang Fang , Ying Chenkai , Geng Guihong 
Published: August 2021

Abstract
Scanning electron microscopy (SEM) plays a very important role in the process of microstructure, fracture analysis, qualitative and quantitative analysis of micro-area composition, microstructure analysis and so on. With the rapid development of material science and technology, various industries also put forward higher and higher requirements on the technical level of testing. Based on the development background of Scanning Electron Microscopy (SEM), this paper introduces the application of scanning electron microscope in the observation of metal microstructure. Mainly about the characteristics of scanning electron microscope to continuous zooming, equipped with advantages of backscatter diffractometer, large depth of field, is advantageous to the samples from the macroscopic characteristics by combining with the analysis of microstructure, and quantitative analysis to test samples, also can research the fracture morphology of the sample, the recrystallization organization, grain orientation and texture characteristics, etc.
Human Vehicle Dynamics Coupling of Miniature Electric Vehicle Roll Stability: Effects of Driver Weight, Wheel Base and Track Width
Authors: Luo Shuang 
Published: August 2021

Abstract
As a continuation of the previous research, influences of human vehicle dynamics coupling (HVDC) on miniature electric vehicle (MEV) roll stability are studied by varying driver weight, wheel base and track width. A multi-body dynamics model is developed for the human-vehicle system by ADAMS/Car software considering driver’s dynamics and is validated theoretically. Simulation results show that the MEV roll stability is decreased by the HVDC; the influences become greater with an increase in the proportion of the driver weight to curb weight of the MEV in both time and frequency domain; with the decrease of wheel base, the differences caused by the HVDC exhibit an increasing trend in the maximum value and overshoot; and the differences in the steady stable roll angle and phase lag at 0.6 Hz indicate an increasing tendency with the decrease of track width.
Study on Lubrication Performance of Composites Water-Lubricated Stern Bearing
Authors: Liu Changjiang , Gao Gengyuan , Gu Xiaomei , Zhang Fei 
Published: August 2021

Abstract
Stern bearings are the main supporting part of ship stern shafts. Water-lubricated stern bearings have the advantages of compact structure, easy maintenance, no waste and no pollution, and. Water-lubricated stern bearing materials are generally non-metallic materials, which are easy to produce elastic deformation when working. Based on this, fiber resin matrix composite materials are selected as water-lubricated stern bearing materials, and the Fluid-Structure interaction numerical method is used to research the lubrication performance of water-lubricated stern bearings, which is verified by the test with water-lubricated stern bearing rig. The effect of rotating speed on the performance of water-lubricated stern bearing under different loads is studied in this paper. The results provide technical and theoretical basis for the study of water-lubricated stern bearings.