bluuebunny/crossref_metadata_2025 huggingface dataset:
Identifying a Deferiprone–Resveratrol Hybrid as an Effective Lipophilic Anti-Plasmodial Agent
Authors: Maneekesorn Supawadee , Chuljerm Hataichanok , Koonyosying Pimpisid , Uthaipibull Chairat , Ma Yongmin , Srichairatanakool Somdet
Published: July 2021

Malaria i a serious health problem caused by Plasmodium spp. that can be treated by an anti-folate pyrimethamine (PYR) drug. Deferiprone (DFP) is an oral iron chelator used for the treatment of iron overload and has been recognized for its potential anti-malarial activity. Deferiprone–resveratrol hybrids (DFP-RVT) have been synthesized to present therapeutic efficacy at a level which is superior to DFP. We have focused on determining the lipophilicity, toxicity and inhibitory effects on P. falciparum growth and the iron-chelating activity of labile iron pools (LIPs) by DFP-RVT. According to our findings, DFP-RVT was more lipophilic than DFP (p < 0.05) and nontoxic to blood mononuclear cells. Potency for the inhibition of P. falciparum was PYR > DFP-RVT > DFP in the 3D7 strain (IC50 = 0.05, 16.82 and 47.67 µM, respectively) and DFP-RVT > DFP > PYR in the K1 strain (IC50 = 13.38, 42.02 and 105.61 µM, respectively). The combined treatment of DFP-RVT with PYR additionally enhanced the PYR activity in both strains. DFP-RVT dose-dependently lowered LIP levels in PRBCs and was observed to be more effective than DFP at equal concentrations. Thus, the DFP-RVT hybrid should be considered a candidate as an adjuvant anti-malarial drug through the deprivation of cellular iron.
The Activating Effect of Strong Acid for Pd-Catalyzed Directed C–H Activation by Concerted Metalation-Deprotonation Mechanism
Authors: Jiang Heming , Sun Tian-Yu
Published: July 2021

A computational study on the origin of the activating effect for Pd-catalyzed directed C–H activation by the concerted metalation-deprotonation (CMD) mechanism is conducted. DFT calculations indicate that strong acids can make Pd catalysts coordinate with directing groups (DGs) of the substrates more strongly and lower the C–H activation energy barrier. For the CMD mechanism, the electrophilicity of the Pd center and the basicity of the corresponding acid ligand for deprotonating the C–H bond are vital to the overall C–H activation energy barrier. Furthermore, this rule might disclose the role of some additives for C–H activation.
Comprehensive Characterisation of the Ketoprofen-β-Cyclodextrin Inclusion Complex Using X-ray Techniques and NMR Spectroscopy
Authors: Betlejewska-Kielak Katarzyna , Bednarek Elżbieta , Budzianowski Armand , Michalska Katarzyna , Maurin Jan K.
Published: July 2021

Racemic ketoprofen (KP) and β-cyclodextrin (β-CD) powder samples from co-precipitation (1), evaporation (2), and heating-under-reflux (3) were analysed using X-ray techniques and nuclear magnetic resonance (NMR) spectroscopy. On the basis of NMR studies carried out in an aqueous solution, it was found that in the samples obtained by methods 1 and 2, there were large excesses of β-CD in relation to KP, 10 and 75 times, respectively, while the sample obtained by method 3 contained equimolar amounts of β-CD and KP. NMR results indicated that KP/β-CD inclusion complexes were formed and the estimated binding constants were approximately 2400 M−1, showing that KP is quite strongly associated with β-CD. On the other hand, the X-ray single-crystal technique in the solid state revealed that the (S)-KP/β-CD inclusion complex with a stoichiometry of 2:2 was obtained as a result of heating-under-reflux, for which the crystal and molecular structure were examined. Among the methods used for the preparation of the KP/β-CD complex, only method 3 is suitable.
Observing Thermal Conditions of Historic Buildings through Earth Observation Data and Big Data Engine
Authors: Agapiou Athos , Lysandrou Vasiliki
Published: July 2021

This study combines satellite observation, cloud platforms, and geographical information systems (GIS) to investigate at a macro-scale level of observation the thermal conditions of two historic clusters in Cyprus, namely in Limassol and Strovolos municipalities. The two case studies share different environmental and climatic conditions. The former site is coastal, the last a hinterland, and they both contain historic buildings with similar building materials and techniques. For the needs of the study, more than 140 Landsat 7 ETM+ and 8 LDCM images were processed at the Google Earth Engine big data cloud platform to investigate the thermal conditions of the two historic clusters over the period 2013–2020. The multi-temporal thermal analysis included the calibration of all images to provide land surface temperature (LST) products at a 100 m spatial resolution. Moreover, to investigate anomalies related to possible land cover changes of the area, two indices were extracted from the satellite images, the normalised difference vegetation index (NDVI) and the normalised difference build index (NDBI). Anticipated results include the macro-scale identification of multi-temporal changes, diachronic changes, the establishment of change patterns based on seasonality and location, occurring in large clusters of historic buildings.
Empirical Stochastic Model of Multi-GNSS Measurements
Authors: Prochniewicz Dominik , Wezka Kinga , Kozuchowska Joanna
Published: July 2021

The stochastic model, together with the functional model, form the mathematical model of observation that enables the estimation of the unknown parameters. In Global Navigation Satellite Systems (GNSS), the stochastic model is an especially important element as it affects not only the accuracy of the positioning model solution, but also the reliability of the carrier-phase ambiguity resolution (AR). In this paper, we study in detail the stochastic modeling problem for Multi-GNSS positioning models, for which the standard approach used so far was to adopt stochastic parameters from the Global Positioning System (GPS). The aim of this work is to develop an individual, empirical stochastic model for each signal and each satellite block for GPS, GLONASS, Galileo and BeiDou systems. The realistic stochastic model is created in the form of a fully populated variance-covariance (VC) matrix that takes into account, in addition to the Carrier-to-Noise density Ratio (C/N0)-dependent variance function, also the cross- and time-correlations between the observations. The weekly measurements from a zero-length and very short baseline are utilized to derive stochastic parameters. The impact on the AR and solution accuracy is analyzed for different positioning scenarios using the modified Kalman Filter. Comparing the positioning results obtained for the created model with respect to the results for the standard elevation-dependent model allows to conclude that the individual empirical stochastic model increases the accuracy of positioning solution and the efficiency of AR. The optimal solution is achieved for four-system Multi-GNSS solution using fully populated empirical model individual for satellite blocks, which provides a 2% increase in the effectiveness of the AR (up to 100%), an increase in the number of solutions with errors below 5 mm by 37% and a reduction in the maximum error by 6 mm compared to the Multi-GNSS solution using the elevation-dependent model with neglected measurements correlations.
Filtering Biomechanical Signals in Movement Analysis
Authors: Crenna Francesco , Rossi Giovanni Battista , Berardengo Marta
Published: July 2021

Biomechanical analysis of human movement is based on dynamic measurements of reference points on the subject’s body and orientation measurements of body segments. Collected data include positions’ measurement, in a three-dimensional space. Signal enhancement by proper filtering is often recommended. Velocity and acceleration signal must be obtained from position/angular measurement records, needing numerical processing effort. In this paper, we propose a comparative filtering method study procedure, based on measurement uncertainty related parameters’ set, based upon simulated and experimental signals. The final aim is to propose guidelines to optimize dynamic biomechanical measurement, considering the measurement uncertainty contribution due to the processing method. Performance of the considered methods are examined and compared with an analytical signal, considering both stationary and transient conditions. Finally, four experimental test cases are evaluated at best filtering conditions for measurement uncertainty contributions.
Recognizing and Counting Freehand Exercises Using Ubiquitous Cellular Signals
Authors: Teng Guanlong , Xu Yue , Hong Feng , Qi Jianbo , Jiang Ruobing , Liu Chao , Guo Zhongwen
Published: July 2021

Freehand exercises help improve physical fitness without any requirements for devices or places. Existing fitness assistant systems are typically restricted to wearable devices or exercising at specific positions, compromising the ubiquitous availability of freehand exercises. In this paper, we develop MobiFit, a contactless freehand exercise assistant using just one cellular signal receiver placed on the ground. MobiFit passively monitors the ubiquitous cellular signals sent by the base station, which frees users from the space constraints and deployment overheads and provides accurate repetition counting, exercise type recognition and workout quality assessment without any attachments to the human body. The design of MobiFit faces new challenges of the uncertainties not only on cellular signal payloads but also on signal propagations because the sender (base station) is beyond the control of MobiFit and located far away. To tackle these challenges, we conducted experimental studies to observe the received cellular signal sequence during freehand exercises. Based on the observations, we constructed the analytic model of the received signals. Guided by the insights derived from the analytic model, MobiFit segments out every repetition and rest interval from one exercise session through spectrogram analysis and extracts low-frequency features from each repetition for type recognition. Extensive experiments were conducted in both indoor and outdoor environments, which collected 22,960 exercise repetitions performed by ten volunteers over six months. The results confirm that MobiFit achieves high counting accuracy of 98.6%, high recognition accuracy of 94.1% and low repetition duration estimation error within 0.3 s. Besides, the experiments show that MobiFit works both indoors and outdoors and supports multiple users exercising together.
Asbestos Detection with Fluorescence Microscopy Images and Deep Learning
Authors: Cai Changjie , Nishimura Tomoki , Hwang Jooyeon , Hu Xiao-Ming , Kuroda Akio
Published: July 2021

Fluorescent probes can be used to detect various types of asbestos (serpentine and amphibole groups); however, the fiber counting using our previously developed software was not accurate for samples with low fiber concentration. Machine learning-based techniques (e.g., deep learning) for image analysis, particularly Convolutional Neural Networks (CNN), have been widely applied to many areas. The objectives of this study were to (1) create a database of a wide-range asbestos concentration (0–50 fibers/liter) fluorescence microscopy (FM) images in the laboratory; and (2) determine the applicability of the state-of-the-art object detection CNN model, YOLOv4, to accurately detect asbestos. We captured the fluorescence microscopy images containing asbestos and labeled the individual asbestos in the images. We trained the YOLOv4 model with the labeled images using one GTX 1660 Ti Graphics Processing Unit (GPU). Our results demonstrated the exceptional capacity of the YOLOv4 model to learn the fluorescent asbestos morphologies. The mean average precision at a threshold of 0.5 (mAP@0.5) was 96.1% ± 0.4%, using the National Institute for Occupational Safety and Health (NIOSH) fiber counting Method 7400 as a reference method. Compared to our previous counting software (Intec/HU), the YOLOv4 achieved higher accuracy (0.997 vs. 0.979), particularly much higher precision (0.898 vs. 0.418), recall (0.898 vs. 0.780) and F-1 score (0.898 vs. 0.544). In addition, the YOLOv4 performed much better for low fiber concentration samples (<15 fibers/liter) compared to Intec/HU. Therefore, the FM method coupled with YOLOv4 is remarkable in detecting asbestos fibers and differentiating them from other non-asbestos particles.
Intelligibility of Haptic Signals in Vehicle Information Systems
Authors: Shin Jong-Gyu , Kim Sang-Ho
Published: July 2021

Objective: The purpose of this study was to verify changes in a driver’s emotions through the physical characteristics of haptic signals. This is to improve the performance of drivers by designing haptic signals with emotional semantics. Background: Currently, drivers receive a variety of information through intelligent systems installed in their vehicles. Because this is mainly achieved through visual and auditory channels, an excessive amount of information is provided to drivers, which increases the amount of information and cognitive load that they must accept. This, in turn, can reduce driving safety. It is, therefore, necessary to develop a haptic signal, a sensory channel that has not been widely used in in-vehicle information systems. Methods: The experiment was performed to collect a driver’s emotions according to the haptic signal in a driving simulator. Haptic signals were designed by various frequencies and accelerations, and driver emotions were collected through Kansei engineering techniques and analyzed through factor analysis. To verify intelligibility, haptic signals were compared and evaluated based on response time, response rate, and amount of transmitted information. Results: The final determined emotional map consisted of dangerousness and urgency. Based on the emotional map, four emotional semantic haptic signals were designed. It was confirmed that these four signals displayed higher performance than the discriminability haptic signal in terms of response time, response rate, and amount of transmitted information. Conclusions: Using emotional maps, it is possible to design haptic signals that can be applied to various driving situations. These maps may also assist in securing design guidelines for haptic signals that apply to in-vehicle information systems.
Multi-Robot 2.5D Localization and Mapping Using a Monte Carlo Algorithm on a Multi-Level Surface
Authors: Rosas-Cervantes Vinicio Alejandro , Hoang Quoc-Dong , Lee Soon-Geul , Choi Jae-Hwan
Published: July 2021

Most indoor environments have wheelchair adaptations or ramps, providing an opportunity for mobile robots to navigate sloped areas avoiding steps. These indoor environments with integrated sloped areas are divided into different levels. The multi-level areas represent a challenge for mobile robot navigation due to the sudden change in reference sensors as visual, inertial, or laser scan instruments. Using multiple cooperative robots is advantageous for mapping and localization since they permit rapid exploration of the environment and provide higher redundancy than using a single robot. This study proposes a multi-robot localization using two robots (leader and follower) to perform a fast and robust environment exploration on multi-level areas. The leader robot is equipped with a 3D LIDAR for 2.5D mapping and a Kinect camera for RGB image acquisition. Using 3D LIDAR, the leader robot obtains information for particle localization, with particles sampled from the walls and obstacle tangents. We employ a convolutional neural network on the RGB images for multi-level area detection. Once the leader robot detects a multi-level area, it generates a path and sends a notification to the follower robot to go into the detected location. The follower robot utilizes a 2D LIDAR to explore the boundaries of the even areas and generate a 2D map using an extension of the iterative closest point. The 2D map is utilized as a re-localization resource in case of failure of the leader robot.
A Method of Codec Comparison and Selection for Good Quality Video Transmission Over Limited-Bandwidth Networks
Authors: Klink Janusz
Published: July 2021

Finding a proper balance between video quality and the required bandwidth is an important issue, especially in networks of limited capacity. The problem of comparing the efficiency of video codecs and choosing the most suitable one in a specific situation has become very important. This paper proposes a method of comparing video codecs while also taking into account objective quality assessment metrics. The author shows the process of preparing video footage, assessing its quality, determining the rate–distortion curves, and calculating the bitrate saving for pairs of examined codecs. Thanks to the use of the spline interpolation method, the obtained results are better than those previously presented in the literature, and more resistant to the quality metric used.
Compression-Aware Aggregation and Energy-Aware Routing in IoT–Fog-Enabled Forest Environment
Authors: Swaminathan Srividhya , Sankaranarayanan Suresh , Kozlov Sergei , Rodrigues Joel J. P. C.
Published: July 2021

Forest fire monitoring is very much needed for protecting the forest from any kind of disaster or anomaly leading to the destruction of the forest. Now, with the advent of Internet of Things (IoT), a good amount of research has been done on energy consumption, coverage, and other issues. These works did not focus on forest fire management. The IoT-enabled environment is made up of low power lossy networks (LLNs). For improving the performance of routing protocol in forest fire management, energy-efficient routing protocol for low power lossy networks (E-RPL) was developed where residual power was used as an objective function towards calculating the rank of the parent node to form the destination-oriented directed acyclic graph (DODAG). The challenge in E-RPL is the scalability of the network resulting in a long end-to-end delay and less packet delivery. Additionally, the energy of sensor nodes increased with different transmission range. So, for obviating the above-mentioned drawbacks in E-RPL, compressed data aggregation and energy-based RPL routing (CAA-ERPL) is proposed. The CAA-ERPL is compared with E-RPL, and the performance is analyzed resulting in reduced packet transfer delay, less energy consumption, and increased packet delivery ratio for 10, 20, 30, 40, and 50 nodes. This has been evaluated using a Contiki Cooja simulator.
A Smart City Economy Supported by Service Level Agreements: A Conceptual Study into the Waste Management Domain
Authors: Peoples Cathryn , Kulkarni Parag , Rabbani Kashif , Moore Adrian , Zoualfaghari Mohammad , Ullah Israr
Published: July 2021

The full potential of smart cities is not yet realized, and opportunities continue to exist in relation to the business models which govern service provision in cities. In saying this, we make reference to the waste services made available by councils across cities in the United Kingdom (UK). In the UK, smart waste management (SWM) continues to exist as a service trialed across designated cities, and schemes are not yet universally deployed. This therefore exists as a business model which might be improved so that wider roll-out and uptake may be encouraged. In this paper, we present a proposal of how to revise SWM services through integrating the Internet service provider (ISP) into the relationship alongside home and business customers and the city council. The goal of this model is to give customers the opportunity for a more dynamic and flexible service. Furthermore, it will introduce benefits for all parties, in the sense of more satisfied home and business owners, ISPs with a larger customer base and greater profits, and city councils with optimized expenses. We propose that this is achieved using personalized and flexible SLAs. A proof-of-concept model is presented in this paper, through which we demonstrate that the cost to customers can be optimized when they interact with the SWM scheme in the recommended ways.
Factors Influencing Students’ Behavior and Attitude towards Online Education during COVID-19
Authors: Boca Gratiela Dana
Published: July 2021

Universities around the world have faced a new pandemic, forcing the closure of campuses that are now conducting educational activities on online platforms. The paper presents a survey about students behavior and attitudes towards online education in the pandemic period from the Technical University of Cluj Napoca, Romania. A group of 300 students participated. The questionnaire was structured in four parts to determine student’s individual characteristics, student’s needs, students’ knowledge in using virtual platforms and students’ quality preferences for online education. The students said that online education in a pandemic situation is beneficial for 78% of them. A total of 41.7% percent of students appreciated the teachers’ teaching skills and the quality of online courses since the beginning of the pandemic, and 18.7% percent of the students appreciated the additional online materials for study to support their education. However, students found online education stressful, but preferred online assessment for evaluation. This pandemic has led to the new stage of Education 4.0, online education, and the need to harmonize methods of education with the requirements of new generations.
Postmodern culturological context of the theory of evolution of Сh. Darwin: criticism of modern stereotypes
Authors: Khrabrov I.
Published: July 2021

Сurrent postmodern cultural situation is largely based on social Darwinism. Radical materialism stimulates the usurpation of the theory of evolution exclusively atheistic worldview that in addition to economic and political reasons, ultimately led the company to the crisis of inter-religious relations. In the article an attempt is made criticism of the classical theory of evolution and the social Darwinian installation of a total of conditionality person, with the latest discoveries in the field of neuroscience and information theory, in order of departure from the “vulgar, primitive understanding of secularism” spoken of by the President of Russia V.V. Putin.
Culture as a factor of national security
Authors: Kostina A. V.
Published: July 2021

The paper shows that the provision on the system-forming role of culture in society is one of the main ideas that for a number of years have been postulated and argued by participants in the International Likhachev Scientific Readings, organized annually at the St. Petersburg Humanitarian University of Trade Unions. This idea of culture defines virtually the entire problem field of these conferences, being directly correlated with the problems of dialogue of cultures, cultural identity, sociocultural dynamics in its linear evolutionary and nonlinearly critical manifestations of global crises. Such culture-centrism seems to be not only true in essence, but extremely fruitful as a line of research.
The concept of the inevitability of fate in apocalyptic predictive stories
Authors: Takazov F. M.
Published: July 2021

This paper discusses the folklore texts of Ossetians with stories that reflect apocalyptic motifs in the predictions. Apocalyptic motives are semantically close to plots with a motive for the inevitability and inevitability of death. Predictions are then perceived as real predictions, when they come true, and in essence the tales of the fulfilled predictions come close to the tales of the inevitability, inevitability of fate.
A new type of drilling rig powered by the Meissner effect
Authors: Koryagina O. M. , Erastova E. S. , Skvortsova T. V.
Published: July 2021

The article considers the use of the quantum levitation property of a superconductor for the modernization of a new type of drilling rig system. The diagrams of the propulsion system of the rig, on the basis of which conclusions are made about the profitability and economic efficiency of the drilling rig, are provided. The use of the quantum levitation effect can be rationally used in drilling rigs, increasing the efficiency by 9%.
Topic of the issue: Determination of the processing error during face milling of flat surfaces
Authors: Kiselev V.L. , Pronin A. S.
Published: July 2021

Using the finite element method and CAD SolidWorks Simulation, the relationship between the geometric parameters of workpieces and the error in processing flat surfaces of levers caused by elastic deformations of the workpiece due to the application of holding force is established. In this paper, we developed a method for determining the error of processing flat surfaces that occurs from fixing, compiled a model for determining the error by the finite element method, and calculated the error of processing flat surfaces that occurs from fixing for workpieces with different geometric parameters. As a result of the study, the relationship between the value of the center distance of workpieces and the error in processing flat surfaces of levers caused by elastic deformations of the workpiece due to the application of holding forces was determined.
Investigation of the possibility of entering the market of electron beam equipment of new manufacturers
Authors: Ilyin V.E. , Ganina G.E.
Published: July 2021

The article is devoted to the study of the possibility of appearance and development of new manufacturers of electron beam equipment on the market. In the research process, the current relevance of electron beam equipment was emphasized; the varieties of equipment, their cost and the scope were determined in general; the criteria of recognition of the enterprises as potential consumers of electron beam equipment were formulated; the search of potential clients was conducted. As a result of the work, the identified potential consumers were evaluated according to several criteria, and the industry assessment of the market was carried out. The results of this work will be useful for companies engaged in or planning to start manufacturing electron beam equipment in the Russian Federation.
Experience in using pumping equipment to solve non-standard technical problems
Authors: Yablochko S. V.
Published: July 2021

NTE shares its experience in solving complex and non-standard technical problems that arise when working with pumping equipment. When selecting equipment, problems in the design of pumps are identified. It is important to ensure a low cavitation margin, otherwise the pump unit will not work or will be unstable. The real task set by one of the clients and the decision made by NTE on its implementation are presented.
Management practice: ontology, structure, content
Authors: Gerasimov Boris , Gerasimov Kirill
Published: July 2021

There is a need to present the results of a search study in the field of management science ontology to highlight its practical attributes. The study of domestic and foreign developments in the field of management of economic systems, management based on system, process and functional approaches allowed us to identify, form and describe the attributes of management practice. At the same time, materials on the structuring, classification and use of management activities from various points of view were used. Based on these generalizations, the interaction of attributes of the management practice of processes and objects in social and economic environments was established. The structure and content of the practice section of management ontology are presented and its relationship with other sections of management science is shown. This research is valuable for research, educational, social and educational activities of processes and objects of economic systems of various types and forms of ownership.
Application of green financing of green economy in Russia
Authors: Nikonorov S. , Tyaglov S. , Sitkina K.
Published: July 2021

In our study, from a theoretical and practical standpoint, the directions of green financing in various elements of the green economy were analyzed. In Russia, by the beginning of 2015, the portfolio of investment projects in the field of renewable energy sources amounted to more than 100 billion rubles. Until 2025, the Ministry of Natural Resources intends to attract about 3.5 trillion rubles in the development of renewable energy sources. In January 2019, the national project «Ecology» was approved in Russia, where 19.9% is government funding, the rest is a great potential for the development of green financing for all 11 Federal Projects, especially BAT. The article presents successful green finance projects in Russia and abroad.
MOTIF DAN KEPUASAN MAHASISWA ILMU KOMUNIKASI UNJ ANGKATAN 2019 DALAM MENGGUNAKAN MEDIA SOSIAL INSTAGARAM
Authors: Firdausi Tasya Indah , Putri K. Y.S.
Published: July 2021

Social media has various types and of course, has different functions and ways of working. Someone uses social media, of course, because there is something they are looking for (motive), and everyone has different motives for using social media, and this is influenced by 4 indicators, namely, information, social interactionl, entertainment, and personal identity. Instagram is a place where you can easily share photos, videos, and interact with other people through online networks. This study uses a quantitative approach with 45 samples and uses a random sampling technique. The data was collected by distributing questionnaires in the form of google form. The data analysis technique used was coding (Likert scale), testing the validity and reliability using SPSS version 21, and calculating the average (mean). From the results obtained, it shows that the motive of information is the motive most sought by students in using Instagram, social satisfaction is the highest satisfaction obtained by students in using Instagram. And the value of the biggest gap between motive and satisfaction is the information indicator.
Tomromma i titteskåpet
Authors: Myren-Svelstad Per Esben
Published: July 2021

Recension av Gunn, Olivia Noble. 2020. Empty Nurseries, Queer Occupants: Reproduction and the Future in Ibsen’s Late Plays. New York & London: Routledge. (193 sider)
INVESTIGATION AND ANALYSIS OF EMERGENCY SITUATIONS ON THE PERMANENT HIGHWAYS
Authors: Drapalyuk Mikhail , Zelikov Vladimir , Denisov Gennadiy , Zlobina N. , Zelikova Natal'ya
Published: July 2021

The statistics of road traffic accidents in general on federal and forest roads of the Russian Federation, as well as with the participation of large wild animals, have been considered. An analysis of the number of incidents reported in various official sources of information has been made. Significant underestimation of the main accident rates was noted, especially with the participation of wild animals on forest roads. The features of the investigation and examination of accidents involving pedestrians and wild animals, taking into account the requirements of the RF Traffic Rules, are described. Deficiencies in the requirements of the RF Traffic Rules have been identified. Possible variants of hazardous traffic situations on forest road sections have been considered. A deterministic analysis of possible variants of a vehicle collision with a wild animal has been carried out. The speed of movement of a vehicle on an emergency-dangerous section of the road has been determined, which allows the driver to timely apply emergency braking to prevent a collision with an animal. Additions to the Traffic Rules of the Russian Federation have been proposed, aimed at ensuring safety on emergency-hazardous sections of highways and forest roads
TO ASSESSMENT OF THE VALUE OF DYNAMIC LOAD OF FORESTRY MACHINES FROM THE INSTALLATION PLACE OF ITS SAFETY DEVICES
Authors: Scheblykin Pavel , Borodin Nikolay , Borovikov R.
Published: July 2021

An integral part of the drive elements of machines in forestry are devices that ensure their protection against breakdowns during overloads. Safety devices can be installed on various parts of the kinematic chain of the machine drive elements: at the beginning, at the end or in the middle, and can also be built into the working unit (body). It is most advisable to install fuses closer to the end of the drive lines of the kinematic chain of the machine. If torque safety devices are installed at the beginning or in the middle of the drive, they are not in the overload zone (more often, overload occurs next to the working unit or directly on it). Under these conditions, the drive links of the kinematic chain are subject to overloads of various magnitudes. With distance from the place of occurrence of overload, the value of the value of the dynamic moment decreases due to elastic deformations and friction losses in the drive links of the machine. Consequently, there is a breakdown or destruction of parts and components of the drive, and the fuse itself does not work. Thus, in this article, using a calculated mathematical model of the actuation process of safety devices using a computer, calculations were carried out to determine the values of dynamic loads and an assessment was given in the case of installing a fuse at the beginning and at the end of the kinematic chain of the machine drive
Inna Narppathu Iniyavai Narpathu Kurum Vaazhviyal Nerigal
Authors: M Chitra Manogari
Published: July 2021

This article, entitled Inna Narppathu Iniyavai Narpathu, is the face of the innumerable ideas and philosophies necessary for the development of human society. It is an undeniable fact that the human race is supported by rich literature. The small introduction of the books should be set up and learn education in life and learn education in life, as the society that leads to the welfare of the land, the fact that the man is characterized by the fact that the man is cultivating the ground and The progressive of a society is a mistake of being configured based on the individual discipline and realizing that life is a mistake and the human race is a human race to describe the unity of the human race and describing the unity of another. The purpose of the article is to realize that the literary ideas of the human race is given literature.
Pengaruh Penggunaan Metode Outdoor Study dengan Memanfaatkan Lingkungan Terhadap Hasil Belajar IPA pada Murid Sekolah Dasar
Authors: Ulfah Maria , Nasrah Nasrah
Published: July 2021

This type of research is a pre-experimental research in the form of One Group PreTest Post Test Design which is an experiment in which implementation only involves one class as an experimental class that aims to determine the effect of the use of outdoor study methods by utilizing the environment as a learning resource for learning outcomes of science in class students IV SD Inpres Bontomanai, Tamalate District, Makassar City. The subjects of the study population were Grade IV students of SD Inpres Bontomanai consisting of 2 classes with randomly selected samples (random classes) so that Class IV A. . Whereas the posttest obtained an average score of 66.94. Based on the results of inferential statistical analysis using the t test it is known that the tcount obtained was 4.41. Degrees of freedom (d.b) = 20-1 = 19 with a significance level of 0.05 obtained ttable = 2.09. So, tcount> ttable or 4.41> 2.09, then Ho is rejected and Ha is accepted. This means that the use of outdoor study methods by utilizing the environment as a learning resource affects the learning outcomes of science in class IV A students of SD Inpres Bontomanai, Tamalate District, Makassar City.
A Usability Model for Software Development Processes and Practices
Authors:   , Fontdevila Diego
Published: July 2021

La usabilidad caracteriza buenas interacciones entre las personas y sus procesos y prácticas. Promueve la satisfacción y crea entornos seguros para la innovación. Los principios de usabilidad como el feedback y la tolerancia a errores están presentes en muchos conceptos de ingeniería de software, como los procesos iterativos y las revisiones de pares. El propósito de la investigación realizada para esta Tesis es traer el concepto de usabilidad de prácticas y procesos a la ingeniería de software. Para lograr este objetivo, y dada la falta de modelos de calidad de procesos enfocados en la usabilidad, un Modelo de Usabilidad de Prácticas y Procesos (UMP) ha sido creado, refinado y evaluado, siguiendo el marco Desing Science Research. UMP ha sido efectivamente aplicado a Scrum, Test Driven Development (TDD), Integración Continua, Behaviour Driven Development (BDD) y el método Visual Milestone Planning (VMP). UMP fue diseñado para ayudar a practicantes, coaches, consultores, docentes e investigadores. Para evaluar UMP se realizaron varios estudios empíricos: una evaluación de expertos inicial para determinar su factibilidad; un focus group para obtener feedback sobre las características y métricas de UMP; dos estudios de confiabilidad, un estudio de acuerdo entre evaluadores sobre Scrum y un estudio de confiabilidad entre evaluadores sobre TDD-BDD; y dos estudios para evaluar la utilidad de UMP, un estudio de caso sobre la aplicación de UMP al método VMP, y un cuasi-experimento de campo en el cual un equipo de desarrollo en la industria aplicó UMP para mejorar su práctica de BDD. Los resultados de los estudios de utilidad muestran que los usuarios consideran a UMP útil, y 37 evaluaciones independientes por expertos fueron realizadas sobre procesos y prácticas del mundo real. Las contribuciones de esta tesis incluyen: UMP con sus características y métricas, el proceso de evaluación de UMP, el conocimiento creado sobre la confiabilidad y utilidad de UMP a través de los estudios empíricos, y los perfiles que caracterizan la usabilidad de prácticas y procesos de amplio uso actual en la industria como Scrum, Integración Continua, TDD y BDD, obtenidos a través de la aplicación de UMP.
Application of Artificial Intelligence Algorithms to Control the Use of Flood-prone Areas
Authors:   K.A. Kurganovich, A.V. Shalikovskiy, M.A. Bosov, D.V. Kochev
Published: July 2021

This article examines the possibility of using artificial intelligence tools to analyze the use of territories prone to flooding during floods. A modern system for monitoring the economic use of flood-prone areas should be based on the use of Earth remote sensing data. The analysis of satellite images, being a laborious task, can be automated through the use of specially trained convolutional neural networks of semantic segmentation based on the algorithm proposed in this article. In this work, on the previously identified flooding zones, using remote sensing data, development objects are automatically determined (segmented) for different times and, by combining information at different times, an assessment of the intensity of this construction in the inter-flood period is made. To form a training sample, a survey of several settlements in the Trans-Baikal Territory was carried out using unmanned aerial vehicles. The neural network was configured using the Python language and the PyTorch library. To select the best convolutional neural network configuration, various combinations of architectures and encoder types were tested for performance and accuracy. The best result in terms of speed and accuracy was shown by the U-Net architecture, built using a convolutional neural network with an SE-ResNeXt50 encoder. According to satellite images of high spatial resolution for the Aginskoye village of Trans-Baikal Kray, a development map was drawn in the flood hazardous area in 2013 and 2019. The objects of development in the period between floods were identified. The results of the study can make it possible to consider a number of important factors when planning the rational use of flood-prone areas in order to improve the quality of life in the region. The obtained maps of the development of flood-prone zones of a large spatial scale are planned to be recommended in the work of state authorities in the field of water resources protection and elimination of natural disasters.
EFFECTIVENESS OF THE LEARNING MODULE FOR THE BALAGHAH SUBJECT AT HIGHER LEARNING INSTITUTES IN MALAYSIA
Authors: Abdul Rahman Mohamad Syukri , Daoh Muhammad , Ghazali Ahmad Redzaudin , Ismail Mohamad Rofian , Mohd Pisol Mohd Izzuddin , Salahuddin Nurfida’iy
Published: July 2021

Balaghah is one of the main components in Arabic literature and it is mandatory for every student of the Arabic language at any learning institution to learn it either as a major or minor subject, compulsory or elective. In addition, learning Balaghah is also a crucial element in the process of mastering the Arabic language. However, students’ inability to master this subject has become an issue due to the absence of a specific Balaghah module prepared for them. Therefore, this study aims to identify the features of a learning module for the Balaghah subject at the Institutes of Higher Learning in Malaysia, evaluate the effectiveness of the learning module, and propose features and framework of the module based on the research findings. The findings of the study show that students’ ability to master the knowledge of Balaghah is at a low level and this is due to the approach, strategy, and teaching method that is not so effective and suitable for students of Public Higher Learning Institutions. In line with that, a Balaghah module has to be developed and introduced in order to create coordination for this subject among the Institute of Higher Learning in Malaysia. This is because there are many Institutes of Higher Learning that do not have a specific module for the Balaghah subject. This directly creates a vacuum in the teaching of Balaghah itself. Besides that, an effective teaching approach has to be planned and reorganized so that the teaching and learning objective of Balaghah can be achieved.
Методи і аналітичні умови адаптації надання ресурсів користувачам хмарних обчислень
Authors: Матов О. Я.
Published: July 2021

Розглянуто питання подальшого розвитку засад створення адаптивних інфраструктур хмарних обчислень, здатних динамічно адаптуватися до вимог користувачів та діючих особливостей і змін умов функціонування. Розроблено методи та аналітичні умови адаптації надання ресурсів користувачам хмарних обчислень. Ці умови надають можливість розробляти технологію (механізми та алгоритми) використання адаптивної дисципліни (порядку) надання обчислювальних ресурсів користувачам. У свою чергу, це дозволяє забезпечувати часові вимоги різних користувачів на отримання своєчасних результатів обчислень чи найбільш ефективно використовувати наявні ресурси хмарних обчислень. Це є актуальним для систем реального масштабу часу і, в першу чергу, для спеціальних інформаційних систем, що побудовані із використанням приватних хмар, і може бути критичним при обмежених обчислювальних ресурсах хмарних обчислень.
TOKSISITAS AKUT DEKOK DAUN KERSEN (Muntingia calabura) MENGGUNAKAN METODE BSLT (Brine Shrimp Lethality Test)
Authors: Fatimah Rosa , Santoso Bilal S A
Published: July 2021

ABSTRACT Kersen (Muntingia calabura) leaf   is a kersen plant parts are usually processed by the community into traditional medicine in the form of a drink by boiling. The boiling process that is too long allows the secondary metabolite compounds contained in kersen leaf to be damaged or reduced, therefore it is necessary to do a screening test of secondary metabolites of decoction of kersen leaf, besides plants containing secondary metabolites can be toxic, so that testing needs to be done components of chemical compounds that have toxic activity. The aims of this study was to know the minimum concentration of acute toxic and component of decoction of kersen leaf. Toxicity testing was carried out using the BSLT method (Brine shrimp lethality test) with test animals using Artemia salina Leach larvae in each treatment with various concentrations of 250 mg L-1, mg L-1, 500 mg L-1, 1000 mg L-1, 1500 mg L-1, 2000 mg L-1, 25000 mg L-1 and replication 3 times. The results of screening secondary metabolites were flavonoides, tannins, and alkaloids. The results of the acute toxicity test showed the LC50 value was 621.25 mg L-1. Key word: Kersen Leaf, decoction, toxicity, BSLT ABSTRAKDaun kersen (Muntingia calabura) merupakan bagian tanaman kersen yang biasanya diolah oleh masyarakat menjadi obat tradisional dalam bentuk minuman dengan cara direbus. Proses perebusan yang terlalu lama memungkinkan senyawa metabolit sekunder yang terdapat pada daun kersen menjadi rusak atau berkurang maka dari itu perlu dilakukan uji skrining senyawa metabolit sekunder pada daun rebusan daun kersen selain itu tanaman yang mengandung senyawa metabolit sekunder dapat bersifat toksik, sehingga perlu dilakukan pengujian mengenai komponen senyawa kimia yang memiliki aktivitas toksik. Tujuan penelitian ini untuk mengetahui konsentrasi minimum dari rebusan daun kersen yang bersifat toksik. Pengujian toksisitas dilakukan menggunakan metode BSLT dengan hewan uji menggunakan larva Artemia salina Leach pada masing-masing perlakuan dengan variasi konsentrasi yaitu 250 mg L-1, mg L-1, 500 mg L-1,1000 mg L-1, 1500 mg L-1, 2000 mg L-1, 25000 mg L-1 dan dilakukan replikasi sebanyak 3 kali. Dari hasil skrining metabolit sekunder diketahui bhawa rebusan daun kersen memilki senyawa metabolit sekunder flavonid, tanin, dan alkaloid. Hasil uji toksisitas menunjukkan bahwa rebusan daun kersen dapat memberikan efek toksik akut pada hewan uji dengan nilai LC50 sebesar 621,25 mg L-1. Kata Kunci: Daun kersen, Rebusan, toksisitas, BSLT
Ideologia de gênero: possibilidades de análise a partir de uma revisão de literatura
Authors: Barzotto Carlos Eduardo
Published: July 2021

Resumo: Este artigo tem como objetivo mapear o debate acadêmico acerca do sintagma “ideologia de gênero”, enfatizando as relações de poder que ele estabelece na sociedade, a partir de uma revisão de literatura sobre o assunto. Tal necessidade se expressa pela enorme profusão de sentidos atribuídos à “ideologia de gênero” na arena pública, sobretudo nos debates educacionais. A partir da discussão teórico-metodológica, foram selecionados, lidos e sistematizados setenta e quatro materiais acadêmicos que tematizam a questão. Por conta da sistematização realizada, argumenta-se aqui que os estudos brasileiros sobre “ideologia de gênero” têm uma maior proximidade com os estudos educacionais quando comparados às outras produções localizadas. Além disso, também se argumenta nesse artigo que o movimento antigênero que se expressa através da difusão do sintagma “ideologia de gênero” tem buscado disputar sentidos e significados sobre os conceitos de “gênero” e “sexualidade” a partir da construção de uma retórica pretensamente científica que une oportunamente Biologia e do Direito. Tal retórica é considerada aqui como um dos muitos passos responsáveis pela deslegitimação dos estudos de gênero e sexualidade na arena pública, bem como pelo ataque à escola pública e à liberdade de ensino.
Palavras-chave: Ideologia de Gênero. Estudos de Gênero. Revisão de Literatura.