bluuebunny/crossref_metadata_2025 huggingface dataset:
Neural Networks Incorporating Dictionaries for Chinese Word Segmentation
Authors: Zhang Qi , Liu Xiaoyu , Fu Jinlan
Published: November 2022

In recent years, deep neural networks have achieved significant success in Chinese word segmentation and many other natural language processing tasks. Most of these algorithms are end-to-end trainable systems and can effectively process and learn from large scale labeled datasets. However, these methods typically lack the capability of processing rare words and data whose domains are different from training data. Previous statistical methods have demonstrated that human knowledge can provide valuable information for handling rare cases and domain shifting problems. In this paper, we seek to address the problem of incorporating dictionaries into neural networks for the Chinese word segmentation task. Two different methods that extend the bi-directional long short-term memory neural network are proposed to perform the task. To evaluate the performance of the proposed methods, state-of-the-art supervised models based methods and domain adaptation approaches are compared with our methods on nine datasets from different domains. The experimental results demonstrate that the proposed methods can achieve better performance than other state-of-the-art neural network methods and domain adaptation approaches in most cases.
Zero-Resource Neural Machine Translation with Multi-Agent Communication Game
Authors: Chen Yun , Liu Yang , Li Victor
Published: November 2022

While end-to-end neural machine translation (NMT) has achieved notable success in the past years in translating a handful of resource-rich language pairs, it still suffers from the data scarcity problem for low-resource language pairs and domains. To tackle this problem, we propose an interactive multimodal framework for zero-resource neural machine translation. Instead of being passively exposed to large amounts of parallel corpora, our learners (implemented as encoder-decoder architecture) engage in cooperative image description games, and thus develop their own image captioning or neural machine translation model from the need to communicate in order to succeed at the game. Experimental results on the IAPR-TC12 and Multi30K datasets show that the proposed learning mechanism significantly improves over the state-of-the-art methods.
End-to-End Quantum-like Language Models with Application to Question Answering
Authors: Zhang Peng , Niu Jiabin , Su Zhan , Wang Benyou , Ma Liqun , Song Dawei
Published: November 2022

Language Modeling (LM) is a fundamental research topic in a range of areas. Recently, inspired by quantum theory, a novel Quantum Language Model (QLM) has been proposed for Information Retrieval (IR). In this paper, we aim to broaden the theoretical and practical basis of QLM. We develop a Neural Network based Quantum-like Language Model (NNQLM) and apply it to Question Answering. Specifically, based on word embeddings, we design a new density matrix, which represents a sentence (e.g., a question or an answer) and encodes a mixture of semantic subspaces. Such a density matrix, together with a joint representation of the question and the answer, can be integrated into neural network architectures (e.g., 2-dimensional convolutional neural networks). Experiments on the TREC-QA and WIKIQA datasets have verified the effectiveness of our proposed models.
Sistemas de ecuaciones: método de Gauss
Authors:   Universidad Cooperativa de Colombia, López Hernández Lina Shirley
Published: November 2022

Esta nota de clase se desarrolla en el marco del curso de álgebra lineal. En esta se resolverá un ejercicio de contexto, modelado por un sistema de ecuaciones mxn y resuelto por el método de Gauss. Debido al impacto negativo que tuvo la pandemia en los procesos de enseñanza-aprendizaje en todos los niveles educativos, se hace necesario hacer énfasis en conceptos previos, tales como: ecuación, ecuaciones lineales, modelación de ecuaciones lineales, entre otros. Lo anterior con el fin de que el estudiante logre establecer una ilación entre el concepto de ecuación y la resolución de sistemas por el método planteado. El procedimiento matemático se evidenciará paso a paso, se validará en una segunda nota, usando el método de determinantes y este a su vez se validará usando el programa de Microsoft Excel. Se toma como último validador este programa debido a que es una herramienta de fácil uso y que se encuentra al alcance de los estudiantes. Sumado a que es un software de uso común en el ámbito laboral, independientemente del campo de acción. Al final de la nota, se proponen una serie de ejercicios de contexto para que el estudiante afiance los conceptos, los procedimientos, el análisis y la interpretación de la información. Dado que el procedimiento matemático es casi un paso a paso, la interpretación de la información es inherente a cada situación.
Azadirachtine maruz kalan Achroia grisella (Fabricius, 1794) (Lepidoptera: Pyralidae) larvalarında ölüm oranı, gelişim biyolojisi ve hücresel bağışıklık tepkileri
Authors: ER Aylin
Published: November 2022

Azadirachtin, obtained from neem trees, can be a robust alternative to synthetic pesticides for the control of agricultural pests with no resistance problems. Azadirachtin-induced influences on mortality, life history traits and cellular immunity indicators of the lesser wax moth Achroia grisella (Fabricius, 1794) (Lepidoptera: Pyralidae) were evaluated. The experiments were conducted under controlled laboratory conditions at Balıkesir University. The topical application of azadirachtin gave an LD50 of 0.02 mg/ml whereas the PD50 (deaths without pupation) was 0.05 mg/ml. The prolongation of the larval stage and adult emergence time was significantly increased at 0.05 mg/ml and 0.1 mg/ml while the duration of the pupal stage was only significant at 0.1 mg/ml. Adult emergence ratios and longevity were reduced at all doses. Topical application of azadirachtin caused a marked decrease in the number of circulating hemocyte counts and spreading ability 24 and 48 h after treatment, however, the variations in plasmatocyte and granulocyte counts were not significant. Although azadirachtin has potential effects in the control of A. grisella, its effects on biological control agents such as parasitoids and predators must be determined to recommend its safe use in agroecosystems.
Wo(man) with the Serpent Hair: An Assessment of the Validity of Globalization and Glocalization Framework in the Study of Roman Britain through Romano-British Sculpture of the Gorgon
Authors: Peer Chelsea
Published: November 2022

Versluys (2014, 2015) proposed a way of looking at the visual material culture of the Roman Mediterranean through the lens of globalization. Can this approach to globalization apply to the visual material culture of Great Britain in the Roman period if we make an effort to view the ‘Roman’ and ‘Celtic’ not a separate ‘cultural containers’ (Versluys, 2014: 149) but as one container, continuously creating a new visual culture? I will explore this question by considering Romano-British sculptures depicting the Gorgon and asking: How does the visual language differ from Classical examples? Is the subject matter used in a new way or context than, or the same as, in Roman examples and if so, how? 
Análisis de la política pública de discapacidad en relación con los cuidadores : Colombia, 2013-2017.
Authors: Bacca Angie Lizeth , Sabogal Jaime Eduardo , Arrivillaga Marcela
Published: November 2022

Objetivo: Analizar la política pública de discapacidad en Colombia en relación con los cuidadores. Método: Este estudio consistió en un análisis de política pública, de tipo retrospectivo y descriptivo. Se tomaron como fuentes de información todos los documentos oficiales, de carácter nacional, en el periodo comprendido entre 2013 y 2017. Se realizó un inventario de normas: políticas, leyes, actos administrativos reglamentarios o concordantes con la política de discapacidad. Se realizó una lectura sistemática, organizando los contenidos en tres categorías a priori: normas en relación con la política de discapacidad y el derecho a la salud, vacíos referidos a los cuidadores en cuanto a las acciones dirigidas a ellos, y dinámicas de familiarización de la atención de personas con discapacidad. Resultados: Los hallazgos mostraron un total de 16 normas que expresan la relación entre discapacidad y derecho a la salud. El 64% de ellas refieren acciones dirigidas a los cuidadores, el 53% tienen contenidos en relación con las dinámicas de familiarización del cuidado, y 36% muestran vacíos en cuanto a los cuidadores de personas con discapacidad. Conclusiones: desde la perspectiva de derecho a la salud, el cuidado se concibe como un servicio asistencial, sin reconocimiento y participación del cuidador. Si bien en algunas de las normas revisadas se tiene en cuenta el papel del cuidador, en la mayoría de ellas se familiariza el rol del cuidado limitándolo al ámbito privado, además de invisibilizar la importancia del cuidador en el proceso de participación social y política de las personas con discapacidad.
Protest injuries: A situational analysis of injurious protests in Gauteng
Authors: Richardson Pascal , Swart Lu-Anne , Govender Rajen , Seedat Mohamed
Published: November 2022

In this article, we investigate contextual and situational circumstances of protest events that record injurious outcomes for civilians and examine how these differ from protests which do not record such outcomes. Using the IRIS database, we examine how contextual factors, including protest period, protest location, type of protest, reason for protest, and situational factors, such as damage to property, arrests and police response contribute to civilian injury. Using multiple logistic regression analysis, it was found that: 1) protest-related injuries were more frequent during the late-2000s than the 2010-15 period; 2) protest location was not a significant predictor of protest injury; 3) protests which recorded arrests and damage to property were more likely to report injurious outcomes; and 4) the addition of an aggressive police response was significant in determining protestor injury outcomes. Our findings have implications for public policing strategies, highlighting the role of different modalities of police response in the mitigation or escalation of violence at protest events.
Knowledge of extension officers on pest management in Horticulture in Thulamela Local Municipality in Vhembe District of Limpopo Province
Authors: Thovhogi R. , Zwane E.M. , Van Niekerk J.
Published: November 2022

This paper focuses on the knowledge of the extension officers on pest management in horticulture in Thulamela municipality - Vhembe district. The study was conducted among 31 extension officers who were selected based on their speciality for dealing with crop production issues in the Thulamela municipality.  The study revealed that most of the respondents had some shortcomings in different areas of their expertise such as limited knowledge of different pest management strategies (e.g. cultural control, biological control, and Integrated Pest Management). The majority (71%) of the respondents chose chemicals as a way for controlling pests, this is a cause of concern as it depicts their limited knowledge of other control methods (e.g. cultural, Integrated Pest Management, and biological) that are used to control pests. A small number of only 3.2% of the respondents knew the role that is played by natural enemies (biological control) in the management of pests. The study had the following recommendations, firstly, there is a need for agricultural extension officers to be regularly trained on pest management so that they can be up to date with new technology on plant protection issues. Secondly, there is a strong need to train agricultural extension officers on how to conduct pest surveillance, this will enable them to detect and manage pests on time.
Knowledge, attitudes and practices of emergency care practitioners in the management of common dental emergencies in the eThekwini District, KwaZulu-Natal.
Authors: Reddy Lucy , Moodley Ilana , Muslim Tufayl Ahmed
Published: November 2022

It is essential to provide timeous and appropriate treatment in cases of dental emergencies. First responders such as Emergency Care Practitioners (ECPs) usually provide this prehospital care. The successful management of casualties experiencing common dental emergencies is dependent on two fundamental factors; the first responder's knowledge and ability to render the appropriate level and standard of medical care, and secondly, the time that expires between the onset of the incident and the initiation of definitive emergency medical treatment. Delayed or inappropriate management can have long term physiological and psychological effects.This was an exploratory and descriptive study, using quantitative and qualitative methods to determine the knowledge and attitudes of Emergency Care Practitioners of the eThekwini District of KwaZulu-Natal, South Africa, in the management of dental emergencies.The results revealed that Emergency Care Practitioners had inadequate knowledge, training, and understanding of the management of common dental emeregncies by ECPs. There was limited initial training, with a significant portion of the participants (44.9%, p 0.233) having not received any training at all in the management of orofacial traumas, and with a significant majority (78.3%, < 0.001) having no further education and training. Most ECPs indicated a desire to receive such training. This study indicated that ECPs lacked confidence in managing dental emergencies, which highlighted a need for specific dental awareness and training programs to further empower ECPs in the management of such emergencies.
Pre-empting and preventing iatrogenic oral trauma: A case report
Authors: Sykes Leanne , Gray Bruce , Mostert Vanessa , Du Plessis Francois
Published: November 2022

In keeping with the principles of autonomy, beneficence, and non-maleficence, no dental treatment shouldbbe commenced prior to carrying out all the requisite preparatory stages. This includes a thorough initial assessment, establishing an accurate diagnosis, drawing up a list of possible treatment options, presenting these to the patient, and allowing them to make an autonomous and educated decision. This should be followed with the formulation of a structured and carefully considered treatment plan.This case illustrates a case of iatrogenically induced damage suffered by a patient where unplanned treatment was carried out with no consideration of the possible immediate, short term or long terms outcomes. It stresses the need for dentists to consider and pre-empt the consequences of their treatment (or lack there-of) and formulate the best possible plan for each patient. It also needs to be stressed that the proposed management plan must be informed by the principle of ‘shared decision making’ wherein the patient assumes part of the responsibility and accountability in the decisions taken. The ultimate aim of any plan must be to promote the best possible outcome for the patient (beneficence), and as far as possible prevent iatrogenically induced harm (non maleficence).
An evidence-based guide to occlusion and articulation. Part 7: Guidelines for mechanical articulator use; conclusions and a note on complexity
Authors: Owen CP
Published: November 2022

Although this is essentially a review, it has not been written in the passive, third-person style normally associated with scientific writing, as it is intended to be thought-provoking and, hopefully, educational. It has therefore been written in more of a conversational style, and is aimed at students, dentists and dental technicians who are receptive to a slightly different view of occlusion and articulation, based on evidence. Occlusion is a topic that has become a kind of archaic minefield of conflicting ideas, propositions, and above all, solutions, most of which are based on a complete lack of understanding of the evolution and development of teeth, and by extension, of clinically objective evidence. That in itself is a statement of conflict (and perhaps even heretical), but it is by way of warning that this guide is not going to be much like anything you will find in standard text-books of dentistry or dental technology. It is, rather, an attempt to help you navigate through what you will read elsewhere, in the hope that eventually you will find an understanding that you can live with. It will appear as a sequential series in 7 Parts.
Anatomic and Physiologic Properties and Clinical Manifestations ofVestibulo-Autonomic Reflexes
Authors: Lee Ju-Young , Choi Jeong-Yoon
Published: November 2022

The vestibular nervous system senses linear and angular acceleration upon the head during postural change and generates vestibular nerve activity changes. The autonomic nervous system regulates involuntary physiologic processes throughout the peripheral and central nervous systems. The vestibular and autonomic systems interplay throughout several brain regions to maintain homeostasis during the postural changes, called vestibulo-autonomic reflex. In this review, we first contemplated the anatomic and physiologic properties of vestibulo-autonomic reflex, focusing on the relationship between vestibular and cardiovascular systems and between the vestibular and respiratory systems and the role of the brainstem and cerebellum on the vestibulo-autonomic reflex. Then, we summarized the autonomic dysfunction reported in patients with various vestibular disorders, such as acute unilateral vestibulopathy, benign paroxysmal positional vertigo, Meniere’s disease, and persistent perceptual postural dizziness. Finally, we described the mechanism of autonomic manifestation in vestibular disorders in detail using the recently proposed mechanism of vestibular syncope integrating the vestibular system, brainstem and cerebellum, and autonomic system functions.
Ceftriaxone- and Cephalexin-Induced Acute Reversible Encephalopathy
Authors: Yoon Soo Ji , Kim Paul , Jang Soo Im , Choi Seulgi , Kim Kwang Ki , Kim Hang-Rai
Published: November 2022

Cephalosporin is widely used in clinical practice due to its broad anti-bacterial activity. However, some serious side effects have been reported. Here, we report a 79-year-old male who repeatedly experienced toxic encephalopathy after consecutive administration of third and first generation cephalosporins. This case demonstrated that various type of cephalosporin may cause toxic encephalopathy and emphasized the importance of staying vigilance for the rare but potentially curable side effects of one of the most widely prescribed antibiotics.
DNA extraction for long-read sequencing of bacteria v1
Authors: Sim Eby
Published: November 2022

Utilisation of long-read sequencing can reliably generate complete bacterial genomes. Here, we present a DNA extraction method which introduces minor modifications to the DNeasy® UltraClean® Microbial Kit (Qiagen) to generate DNA suitable for long-read sequencing. When sequenced, the extracted DNA should yield median read lengths greater than 7 kb. In addition, this protocol uses cultures growing on solid media as a starting point which will be useful for laboratories that do not routinely use liquid cultures.
MTT assay on 96 well plate v1
Authors: Ayu Permanasari Adita
Published: November 2022

MTT assay to measure viability cells
Passage cells v1
Authors: Ayu Permanasari Adita
Published: November 2022

Passage Cells
Human Emotions in Narrative: Interventions of Fear in R. Chudamani’s Short Fictions
Authors: Anish K. , Priya N.S Vishnu
Published: November 2022

Chudamani is one of the inconspicuous writers in Indian literature who is gradually gaining prominence in the recent past. Chudamani’s works are powerful and sensitive unveiling the reality of human beings in society and their psychological aspects. This research article aims to analyse a novella and three short stories of R. Chudamani and inquires about the human emotions especially fear portrayed in those stories. The major focus of the article is on the novella, Yamini, and the minor focus is on the three short stories: “A Knock at the Door”, “The Strands of the Void” and “Drought”. Yamini is the story of a girl Yamini, who is forced into the institution of marriage. “A Knock at the Door” is the narrative of two widows who safeguard their sister’s son from his father. “The Strands of the Void” explores the system of dowry in Indian society. “Drought” is the story of a married woman who tries to escape from the torments of her husband.  This paper also scrutinizes the fear in the protagonists and the central characters in the above works.  It also inspects how fear transmogrifies the characters in different situations.
Rhetorical Devices and Humor by Jordanian Social Media Users During COVID-19 Pandemic (June 2022)
Authors: Al-Qudah Mahmoud A. , Hait Shereen M. Abu
Published: November 2022

The current study examines the deployment of the rhetorical strategies found in 25 jokes that are used by Jordanian social media users after the emergence of COVID- 19 during the months of March until September in the year 2020. The data were purposively selected from different social media, like Facebook and WhatsApp. The study analyzed how the rhetorical strategies are used in jokes to generate humor, depending on the context of humor. Therefore, the present study analyzed the corpus qualitatively, and it adopted Berger’s rhetorical techniques (1993) that deal with language and logic for analysis purposes. The findings of the present research indicated that a collection of rhetorical strategies were utilized to highlight several political, social, and psychological themes that were prominent in the Jordanian society during the COVID-19 pandemic. These rhetorical strategies were employed to enact humor. According to the results of the study, Jordanian social media users develop humor by employing strategies such as satire, pun, irony, exaggeration, definition, ignorance, rigidity, disappointment, allusion, and absurdity in an attempt to cause laughter.
Conversational Code-Switching Among Thai Teenage Multilingual Gamers: A Sequential Analysis
Authors: Umpornpun Achiraya , Mongkolhutthi Preechaya
Published: November 2022

Using the pragmatic approach to code-switching studies, this paper presents a case study of how a group of Thai multilingual teenagers employ code-switching to organise their discourse while gaming. Auer’s method of sequential analysis was used to reveal the ways participants used code-switching to negotiate the language for interaction and to organise conversational tasks. Participants were found to have used both participant-related and discourse-related code-switching in their interactions with one another. Analysis of these instances of code-switching suggests that code-switching is used as an additional resource by multilingual teenagers to achieve particular conversation goals in interaction, and that multilingualism is a linguistic and interactive resource that is unique to those that are able to communicate in more than one language.
Structure and Analysis of Properties of Basic Comb Filters for Automatic Systems
Authors: Babochkin M. A. , Balarev D. A. , Kolosov O. S.
Published: November 2022

The paper considers the issues of using comb filters (CF), known in radio engineering, as an alternative to continuous corrective filters, when they are implemented in controllers in automatic control systems. The convenience of their implementation in controllers is associated with the organization of a fixed number of sample passes in the processed signal. In this paper, the properties of two types of comb filters of the first order are highlighted and studied in detail: a high-frequency filter and a proportional (forming) filter. The characteristics of these filters are taken as a basis for the implementation of more complex characteristics of corrective devices in combination with numerical integration algorithms. The analysis of the properties of CF was carried out in the frequency domain. It is shown that the initial sections of the frequency characteristics of the CF at certain filter parameters coincide well with the continuous analogues of such devices. It is these areas of frequency characteristics, limited by the cutoff frequency of the open system, that determine the coincidence of static and dynamic properties of the synthesized system. It is shown that CF reduces on 30 % the level of the standard deviation (RMS) of uniformly distributed white noise at the filter output. The decrease in the level of RMS occurs due to the presence of periodically recurring dips in the amplitude-frequency response (frequency response) of filters forming a so-called comb. Due to the fact that the filters in question "cut out" harmonics in the output signal spectrum that are multiples of the inverse of the total duration of the transmitted reference intervals, then a special choice of this duration can not only reduce the level of the random signal at the CF output, but at the same time significantly reduce the level of regular interference, if it is present. Such filters can be simultaneously used as amplitude modulated signal demodulators.
Technological assessment of processes of water-coal fuel combustion of brown coal of Kara-Keche deposit of Kyrgyz Republic
Authors:   Siberian State Industrial University, Murko V.I. , Bukhmirov V.V. ,   Ivanovo State Power Engineering University, Bushuev E.N. ,   Ivanovo State Power Engineering University, Dzhundubaev A.K. ,   Research Institute of Energy and Economics, Ministry of Energy of the Kyrgyz Republic, Sultanaliev M.S. ,   Research Institute of Energy and Economics, Ministry of Energy of the Kyrgyz Republic, Temlyantseva E.N. ,   Siberian State Industrial University
Published: November 2022

Brown coals are valuable natural resource. Brown coals of the Kara-Keche deposit are most of all ready for industrial development in the Kyrgyz Republic. To solve the problems of effective development of brown coal of this deposit, it is necessary to study the issues of direct combustion of water-coal fuel (WCF) without thermal stabilization of the flame with additional sources of heat release. Experimental studies of WCF combustion have been conducted at the experimental industrial technological stand of Siberian State Industrial University, Novokuznetsk city. Structural-rheological and thermal characteristics of a pilot batch of brown coal of the Kara-Keche deposit, as well as data on the organization of efficient combustion of WCF, have been obtained. Brown coal of the Kara-Keche deposit meets the requirements of pipeline transportation and direct combustion in the furnaces of boilers of thermal power plants and boiler houses. The resulted water-coal fuel of brown coal is effectively burned in a vortex adiabatic furnace and the combustion process is like the combustion of WCF of hard coals of “G” type.
Improving the efficiency of fly ash reinjection in grate stoker of boiler
Authors:   Ivanovo State Power Engineering University, Gorshenin S.D. , Shuvalov S.I. ,   Ivanovo State Power Engineering University, Zinovieva E.V. ,   Ivanovo State Power Engineering University, Kokulin l.A. ,   Ivanovo State Power Engineering University
Published: November 2022

A significant disadvantage of grate stokers is great carbon loss. To reduce these losses, the ash caught in the flue is returned to the furnace for afterburning. The effectiveness of this measure depends on the thermal characteristics of coal, the size of the pieces of coal and ash, the degree of carbon elimination, and the design features of the combustion chamber. Normative techniques to calculate and design grate stokers do not consider the features of coal combustion with ash return. Thus, it is relevant to develop the models that describe the creation of ash flows in the boiler path depending on its design, properties and dispersed composition of the burned coal and the aerodynamics of the combustion chamber. Mathematic simulation of the processes of particle size classification has been carried out to describe the creation of ash mass flows on the grate and in the convection chamber. To evaluate the parameters of mathematical models, simulation modeling of gas dynamics of flue gases in the combustion chamber has been carried out with SolidWorks software. The authors have developed a mathematical model and the method to identify its parameters. It allows us to obtain quantitative estimates of the economic efficiency of boilers with grate firing of coal. Thus, a computer program has been developed. The authors have used the program and the Neryungri brown coal to burn in the KV-TS-30-150 boiler. The results have shown that carbon loss without fly ash reinjection is 11,27 %. Introduction of fly-coke return unit reduces the loss up to 10,45 %. It is established that elimination of slit windows in the rotary baffle will lead to a change of the trajectories of ash particles and carbon losses reduction up to 10,17 %. Limiting the maximum size of coal pieces to 50 mm will lead to a more noticeable increase of boiler efficiency. The calculations have showed that in case the value of the carbon burn out factor equals 0,935, the carbon loss when the system of fly ash reinjection is turned off, its commissioning and, in addition, an increase of the gas density of the rotary screen will be 4 ,88%, 4,44% and 4,3% respectively. In case of a more careful assessment of the burnout factor at the level of 0,9, the carbon loss will be 7,51%, 6,87% and 6,65% respectively. The developed mathematical model makes it possible to evaluate the effect of the operation of the fly ash reinjection unit on the efficiency of the operation of a boiler with a grate stoker. Validation of a model for adequacy and for accuracy increase can be carried out after field testing of the boiler equipment.
Remote earth fault location at 6–10 kV cable line using its models
Authors:   Ivanovo State Power Engineering University, Saveliev V.A. , Filatova G.A. ,   Ivanovo State Power Engineering University, Shadrikova T.Y. ,   Ivanovo State Power Engineering University, Tyutikov V.V. ,   Ivanovo State Power Engineering University, Shuin V.A. ,   Ivanovo State Power Engineering University
Published: November 2022

As a rule, electrical values of the transient process that occurs during insulation breakdown are considered to determine the fault location in case of short-term self-eliminating and arc intermittent single-phase earth faults in distribution cable networks of 6–10 kV. The known methods for remote earth fault location based on monitoring the parameters of transient currents and voltages, do not always provide sufficient accuracy to determine the fault location. It is due to the influence of various random factors (the value of the total capacitive current that depends on the network operation mode, the moment the fault occurs, etc.). Thus, the task to improve the accuracy of the remote fault location algorithm under the influence of these factors, as well as the speed to determine the fault location is relevant. Considering the complexity of transient processes in case of single-phase earth faults in 6–10 kV cable networks, simulation in Matlab software package is carried out to study the effectiveness of the algorithm of the operation of a device for remote earth fault location based on the above method. A method to determine remotely the location of an earth fault is proposed. It makes possible to ensure sufficient accuracy and speed based on the analysis of the factors that affect the measurement accuracy and in-depth studies on simulation models of 6–10 kV cable networks in Matlab. It is shown that the total effect of various factors that distort the measurement in case of remote fault location using a controlled line model can cause errors in measuring the distance up to the point of the fault equals to 10–15 % with close earth faults (about hundreds of meters away the busbars of the power source) and no more than 5–10 % at the distances a few kilometers away. The method to determine remotely the fault location using the models of a controlled transmission line provides an increase in the accuracy and speed of measuring the distance to the earth fault location in 6–10 kV cable networks. It is more promising to apply when one develops devices for remote earth fault location.
Mathematical model of position master unit of electric drive and development of its software
Authors:   LLC R&D Company “Rubicon – Innovation” (Smolensk), Polyuschenkov I.S.
Published: November 2022

Various computational algorithms to perform automatic control of motion are widely used in microprocessor control systems of electric drives. The requirements for such algorithms are the minimum execution time, the minimum amount of calculations, the compactness of the software, the convergence in the statics and dynamics of the control system. It ensures the stability and accuracy of coordinates control. The above-mentioned issues are applicable to the computational algorithm to develop a S-shaped trajectory of the electric drive by the position master unit. The position master unit based on the well-known mathematical model has some disadvantages that limit its use. They are incorrect calculation of the trajectory depending on the speed, acceleration, and sampling interval, as well as the self-oscillatory processes in case of the output and intermediate coordinates. As a result, it leads to a decrease of the accuracy of the electric drive control. Despite the standard solutions, such position master unit require improvement. In this regard, upgrading such a position master unit is relevant. The aim of upgrading is to eliminate these shortcomings by introducing corrective calculations and logical sequences that transfer the position master unit into a stable state as soon as it reaches a given value of the output coordinate. To control the motion of the electric drive when we develop a mathematical model and software based on it, it is necessary to use computational algorithms and numerical methods of calculation that are the least costly in terms of execution time. A modernized mathematical model of the S-shaped trajectory of position master unit is proposed. Restrictions of the parameters of this master unit have been eliminated. They may lead to incorrect path generation, as well as self-oscillations of the output and intermediate coordinates during the path generation, which reduces the accuracy of the electric drive control and cause vibration and noise. The software of the modernized position master unit, in comparison with its original form, does not contain cumbersome arithmetic that is costly in terms of execution time. The software has been successfully implemented into the microprocessor control system of the electric drive. At the same time, it is necessary to observe a time-stable execution of computational sequences and to consider the influence of the values of the numerical parameters used in the calculations.
Development of the Spectrophotometric Method for the Determination of Atorvastatin Calcium in Tablets by using Bromophenol Blue
Authors:   I. Horbachevsky Ternopil National Medical University, Shulyak N. , Protsyk S. ,   I. Horbachevsky Ternopil National Medical University, Kuche T. ,   I. Horbachevsky Ternopil National Medical University, Kryskiw L. ,   I. Horbachevsky Ternopil National Medical University, Poliak O. ,   I. Horbachevsky Ternopil National Medical University, Mosula L. ,   I. Horbachevsky Ternopil National Medical University, Logoyda L. ,   I. Horbachevsky Ternopil National Medical University
Published: November 2022

A simple, rapid, and inexpensive spectrophotometric method for the determination of atorvastatin calcium in tablets has been developed. It requires only one reagent (BPB) and suitable for routine pharmaceutical analysis with less sophisticated equipment. The procedure for atorvastatin determination is based on its interaction with bromophenol blue (BPB) in medium of organic solvent. As a result of the reaction, the intensity of the band of the doubly ionized form of the BPB with a maximum at 595 nm increases. The maximum analytical signal is observed in a solution of methanol, chloroform, or acetonitrile, while ethanol and ethyl acetate turned out to be unsuitable. The optimal concentration of BPB is 4.12·10-4 M. To study the stability, the absorbance of the obtained solution was measured under optimal conditions for 45 min. The stoichiometric ratio of components in the resulting associate, determined by the method of continuous variations, is 1:1. The calibration graph is linear in the range from 4.1 to 33 μmol/L. The calculated LOD and LOQ values were 1.36 μmol/L and 4.13 μmol/L, respectively. The systematic error of the method is statistically insignificant in the whole range of calibration graph. The developed method was successfully applied for the determination of atorvastatin in tablets.
An Overview of Environmental Scalability and Security in Hybrid Cloud Infrastructure Designs
Authors: Achar Sandesh
Published: November 2022

The practice of using IT resources via the internet with pay-as-you-go pricing is known as cloud computing. The cloud computing market has grown dramatically in the last few years. Most companies are transmitting from on-premises data centers to cloud computing. You can use the cloud as an alternative to purchasing and maintaining computer hardware and software. You can spend time, energy, or money doing everything yourself. This paper presents an overview of the architecture, scalability, economics, consistency-availability-partition, transactions, and security of cloud-based system designs. This study assesses the current cloud development ecosystem using various criteria.
La influencia del conflicto social y la licencia social para operar sobre el valor de la empresa
Authors: McDonald Robert , Matos Reyes Nancy , Rivera Camino Jaime
Published: November 2022

A partir de información empírica del sector minero del Perú, se propone un modelo que relaciona el conflicto social, la licencia social para operar, y el valor de las empresas extractivas para contribuir a la comprensión de la dinámica socioempresarial del sector extractivo. Las variables que se utiliza en el modelo son el precio de las acciones mineras, el registro oficial de los conflictos, y las licencias sociales. Por medio de una regresión lineal multivariada, se encuentra que el incremento de los conflictos sociales disminuye el valor de las empresas, y que la licencia social para operar tiene un efecto positivo sobre esta variable; además, modera el impacto del conflicto en el valor de la empresa. El estudio confirma empíricamente las relaciones sociales y económicas entre empresas extractivas y comunidades, y orienta a directivos, políticos y autoridades sobre acciones para prevenir conflictos. También contribuye a cerrar la brecha de estudios empíricos en países con menor nivel de desarrollo.
Resiliencia del emprendimiento en México. Los casos de las crisis económicas del COVID-19 y subprime
Authors: Saavedra Leyva Rafael Eduardo , Martínez Sidón Gilberto , Osorio Novela Germán
Published: November 2022

El objetivo del artículo fue analizar la resiliencia del emprendimiento mexicano ante contextos de las crisis económicas 2020 y 2008. Se aplicó la técnica de descomposición de ciclo y tendencia de Hodrick-Prescott sobre el producto interno bruto, con el fin de determinar el periodo de caída y recuperación de la actividad económica. Además, se calcularon indicadores de recuperación y resistencia sobre el emprendimiento para determinar el grado de resiliencia. Los resultados muestran que el emprendimiento fue resiliente en aproximadamente el 16% de las entidades mexicanas ante la crisis sanitaria, caracterizadas por una importante resistencia y recuperación, mientras que en la crisis subprime fue del 25%.
Urban Policy Of Frederick II
Authors:   Saratov State University, Nagodkina S. A.
Published: November 2022

The article examines urban policy of Prussian king Frederick II and determines the direction of his actions. The author makes a conclusion that the main components of Frederick’s II policy were attraction of immigrants-professionals to the city and fire-safety security.
Saratov’s Urban Space Development in 1953–1985 Years of the Ordinary Man’s Eyes
Authors:   Saratov State University, Gumenyuk A. A.
Published: November 2022

In this article the reconstruction’s plan in Saratov in 1950 and 1974 years was analyzed. The author has given main attention of the ordinary townspeople’s opinion about Saratov’s reconstruction. Materials on the data of the local press, an interview and the archives were prepared.
Ultrasound Guided Erector Spinae Plane Block with Ozone & Corticosteroid for the Management of Discogenic Back Pain: A Case Report
Authors: Inklebarger James , A Mehrez , O Mehrez , T Rimbault , T Joshi , A Akhtar , N Galanis , J Michael , G Gyer , K Whitehouse
Published: November 2022

Lumbar fluoroscopic or CT-guided intra-discal ozone injections with or without corticosteroid, have reportedly been a successful back pain-sciatica treatment. Ozone may also enhance the longevity of corticosteroid anti-inflammatory effects. However, growing evidence that the mere act of needle puncturing the intervertebral disc may inadvertently set off an annular degenerative cascade taking several years to manifest, has prompted a search for less invasive yet effective alternatives. Ultrasound Guided (USG) Erector spinae plane (ESPB) blocks may offer a relatively safer, less technically challenging alternative to intra-discal ozone injection by means of diffusing ozone through tissues into the gas-permeable annulus, rather than injecting ozone into the disc itself. ESPB is a relatively new procedure and its use with ozone in DLBP management has not yet been described in the literature.  This paper details the management of a 40-year-old male chef suffering from disabling low back pain and unilateral lower limb radiculopathy using an ESBP with Ozone-corticosteroid, with rapid-sustained pain relief, and restoration of sustained work-ADL function on 6 months follow up.
Detección de pistas aéreas ilegales en imágenes digitales empleado técnicas de inteligencia artificial
Authors: Erazo Yánez Carlos Patricio , Navarrete Cedillo Gabriela Alexandra
Published: November 2022

El Ecuador es considerado un país de tránsito de actividades de narcotráfico y contrabando; siendo una problemática existente actual en la frontera norte y costera del territorio nacional, para estas actividades ilegales se utilizan pistas aéreas no autorizadas donde se transportan sustancias sujetas a fiscalización, dinero, armas, municiones y explosivos. 

La investigación se basará en diseñar y desarrollar una metodología de uso mediante técnicas de inteligencia artificial, para el análisis y procesamiento de las imágenes que serán obtenidas de las misiones de reconocimiento que realicen los aviones de la Fuerza Aérea Ecuatoriana. Para el reconocimiento de pistas aéreas clandestinas se utilizarán el método de detección de objetos basado en aprendizaje profundo Yolo y técnicas de segmentación.
Seguridad en los contextos de amenaza biológica
Authors: Cerón Rincón Alejandra , Rico Venegas Yuber
Published: November 2022

Ante el nuevo panorama mundial enmarcado en la amenaza biológica producida por el virus de la COVID-19, los marcos de análisis de seguridad provistos por las ciencias sociales deben expandir su interés a la comprensión del cambio estructural que puede afrontar el nuevo orden social y político, así como a los sistemas de producción alrededor del mundo. Así las cosas, dentro del ámbito de los riesgos globales y locales se comienza a reconocer la preponderancia de las amenazas biológicas en su contexto y, por tanto, la imperiosa necesidad de ahondar en una mirada interdisciplinar al problema. El resultado de este nuevo marco de investigaciones deberá fundamentarse en los adelantos y las propuestas novedosas en cuanto a las técnicas de investigación social se refiere, en especial las que construyen su interpretación del significado de acuerdo con sus contextos.
El sistema de defensa aeroespacial brasileño y la estrategia de defensa nacional
Authors: Hadmann Jasper Flavio Neri
Published: November 2022

El artículo analiza los cambios que ocurrieron dentro del Sistema Brasileño de Defensa Aeroespacial (SISDABRA), con miras a la Política Nacional de Defensa y a la Estrategia Nacional de Defensa en el periodo 2008-2020. La Estrategia Nacional de Defensa del 2008 establecía cambios en las Fuerzas Armadas, teniendo en cuenta el Comando Brasileño de Defensa Aeroespacial (COMDABRA), a cargo de liderar e integrar equipos y medios de vigilancia y comunicaciones para el control del espacio aéreo. Esa visión resultó en cambios en la Fuerza Aérea, pero no en la forma visualizada por este documento en el 2008, ya que, en la estructura implementada originalmente, hay dos sistemas que trabajan juntos: sisdabra y el Sistema Brasileño de Control del Espacio Aéreo (SISCEAB). Ambos sistemas se mantuvieron con sus conceptos originales: el sisceab es el administrador de infraestructura y el comando aeroespacial es actualmente responsable de la defensa aeroespacial. Se utilizaron las técnicas de investigación bibliográfica y documental, teniendo como referente teórico la teoría general de sistemas y las que tratan los conceptos de seguridad y defensa, debido a la integración de la defensa aérea con el control de tránsito. La reorganización de la Fuerza Aérea no se produjo en la forma prevista en la Estrategia Nacional de Defensa del 2008, a pesar de que la reorganización de las Fuerzas Armadas era uno de los objetivos de este documento.
Reconfiguraciones territoriales en la costa atlántica bonaerense: cruces entre cambio demográfico y bienestar
Authors: Parracone Leandro Agustin , Ares Sofía Estela
Published: November 2022

En Argentina, desde principios del siglo XX es notoria la concentración poblacional en áreas urbanas, multiplicándose los problemas derivados de la aglomeración. En este marco, algunas pequeñas localidades han adquirido otros roles. En consecuencia, suman a la prestación de servicios agropecuarios o actividades recreativo-turísticas y de segunda residencia, funciones para la residencia permanente. Con frecuencia su crecimiento se hace sin planificación, abarcando territorios con escasa infraestructura y servicios. Estos déficits se compensarían en la vida cotidiana con los beneficios de residir en áreas calificadas como seguras, verdes o tranquilas. De esta forma, se propone analizar de forma diacrónica y transversal la dinámica demográfica (1991-2010) y el bienestar de la población (2001-2010), así como su vinculación en General Pueyrredon y Mar Chiquita (provincia de Buenos Aires, Argentina). El enfoque metodológico es cuantitativo basado en el análisis de datos censales, con uso de técnicas estadísticas y sistemas de información geográfica. Los resultados obtenidos permiten indicar que los cambios se han acelerado desde la década de 1990 en aquellas localizaciones con mayor atractivo para la población. Asimismo, este proceso no produjo deterioros generalizados en el bienestar, situación que ha presentado mayoritariamente escasas variaciones, pero con distinciones según el tamaño demográfico de los poblados.