bluuebunny/crossref_metadata_2025_split huggingface dataset:
Self-reported bleeding gums and oral hygiene habitsin rural areas of Peshawar
Authors: Gilani Syed Imran , khan Abdul Adil , Jan Noman , Haroon Haseeb , Ali Shadman 
Published: June 2023

More than half of Pakistan’s population resides in rural areas with lower average incomes than urban areas. Oral health issues are more prevalent in populations with lower economic status and are more prone to have periodontal problems. A cross-sectional study of the adult population of rural area chosen from among those present at the time of data collection. Sampling Technique was non-probability. A self-administered interview-based questionnaire concerning oral health behavior and attitudes. 56% of the participants reported bleeding from their gums, 51.6% had perceived halitosis and a majority, 78%, indicated that their teeth needed cleaning. Regarding the frequency of brushing, the majority (41.2%) cleaned their teeth once daily. The majority (36%) used Miswak followed by Soft Brushes (32%) as their preferred cleaning tool. 38% of the participating populous used their brush till it became useless 38%.The association of bleeding from gums with Type of brush, perceived halitosis and how often the participants changed their brush was found to be statistically significant. An association between halitosis and how a brush was changed was found to be statistically significant. The people of Pishtakhara Bala had a poor oral health status and while a part of the population practices oral hygiene maintenance, more than half of the population had bleeding gums and halitosis.
Presencialidade a Qualquer Distância: A Atualização do Virtual em Tempos de Práticas de Ensino Emergencial
Authors: Dias Vanina , Rodrigues Ione Aparecida Neto 
Published: June 2023

Esse artigo relata uma pesquisa desenvolvida com docentes do ensino superior durante o período da pandemia da Covid-19 questionando de que forma tais docentes fizeram a transposição das aulas presenciais para aulas remotas. Tomou-se como norteadores os conceitos de presencialidade (ou presença social) desenvolvido por Biocca (1997) e virtualidade desenvolvido por Deleuze e Guattari (1995) além de Levy (2003). Os depoimentos foram colhidos através de um formulário online, enviado pelo Google Forms, no mês de maio de 2020. Responderam ao formulário 57 professores. A partir da análise de conteúdo proposta por Bardin (2011) elegeu-se as seguintes categorias: as interfaces humanas presentes no processo de mediação; interfaces artificiais como suporte ao processo de aprendizagem. À luz dessas categorias, percebeu-se que 30% do conteúdo dos depoimentos dados pelos professores diz respeito ao uso de interfaces artificiais e 70% relacionam-se às interfaces humanas. E ainda, quer seja de educação remota, à distância, ou online, apesar de professores e estudantes estarem fisicamente em outros espaços, o uso das tecnologias virtuais aumentam, significativamente, o poder de contato e comunicação. Nesse sentido, a tecnologia torna-se um modo potente que pode conduzir a aprendizagem.

Palavras-chave: Ensino remoto emergencial. Virtualidade. Presencialidade.
Educação a Distância na Pandemia Covid-19: o Que Dizem os Licenciandos em Ciências Biológicas do Polo Magé/RJ sobre essa Experiência?
Authors: Castro Adriel Alexsander Monteiro de , Lacerda Fátima Kzam , Saba Celly Cristina Alves do Nascimento 
Published: June 2023

Este trabalho tem como objetivo relatar a opinião dos estudantes do curso semipresencial de ciências biológicas do Polo Magé pertencente ao Consórcio CEDERJ no que se refere às práticas educativas vivenciadas na pandemia no ano de 2020. Para isso foram utilizados dois questionários digitais disponibilizados aos licenciandos com perguntas divididas em três blocos: identificação, questões sociais e formação acadêmica. Os resultados obtidos evidenciam que as modificações metodológicas introduzidas durante o período de pandemia representaram um grande desafio para os estudantes do curso, culminando em um árduo processo de adaptação ao longo dos dois semestres letivos de 2020, especialmente no que se refere aos processos avaliativos. Por fim, cabe ressaltar a importância das pesquisas realizadas nos e com os laboratórios de educação a distância, principalmente quando essa se apresenta como importante ferramenta na busca por contornar os problemas educacionais emergentes na contemporaneidade.

Palavras-chave: Teoria ator-rede. Distanciamento social. Formação de professores. Ensino de Biologia.
As Pautas da Formação nos Constructos da Pesquisa-Formação na Cibercultura
Authors: Gusmão Rogério , Barreto Denise Aparecida Brito , Eugênio Benedito Gonçalves 
Published: June 2023

Em termos heurísticos e formacionais, a modalidade da pesquisa-formação estabelece em seus princípios as pautas da formação como premissa inarredável para uma estruturação consistente, clara e coesa, devendo, portanto, compor todos os constructos da pesquisa (MACEDO, 2021). Neste sentido, este artigo reflete os desdobramentos de um estudo maior, baseado na Revisão Sistemática de Literatura (RLS), composta por seis teses e doze dissertações orientadas ou coorientadas por Edméa Oliveira dos Santos. Seguindo as proposições da análise de conteúdo (BARDIN, 2016), o presente estudo objetiva analisar como as pesquisas abordam as pautas da formação em seus constructos de pesquisa, através da categoria “formação” e suas possíveis variações em unidades de registro. Por efeito, os resultados revelam que 39% dos trabalhos investigados não evidenciam a formação em seus constructos, alertando-nos para a vigilância na apropriação das tratativas metodológicas basilares (não somente na pesquisa-formação), uma vez que é na metodologia que se inaugura o rigor (ainda que outro) necessário para a cientificidade das pesquisas educacionais.

Palavras-chave: Cibercultura. Pesquisa-formação. Revisão sistemática.
ВИСОКОШВИДКІСНИЙ РУХ, ЯК ЗАСІБ ЗАБЕЗПЕЧЕННЯ ЯКІСНОГО ПЕРЕВІЗНОГО ПРОЦЕСУ В СУЧАСНИХ УМОВАХ
Authors: Каличева Н. Є. , Соломніков І. В. , Кузьменко М. В. 
Published: June 2023

Стаття присвячена дослідженню питань забезпечення якісного перевірного процесу шляхом запровадження високошвидкісного руху. На даний час вітчизняні транспортні підприємства працюють у несприятливих економічних умовах, які перешкоджають їхньому ефективному функціонуванню. Відзначено, що забезпечення швидкісного залізничного сполучення має певні технічні особливості, тому для його реалізації повинні бути дотримані відповідні умови, а саме мають бути встановлені об'єкти технічного регулювання, розроблені вимоги безпеки, визначені способи оцінки відповідності інфраструктури та рухомого складу тощо. Особливістю реалізації швидкісного руху на сучасних залізницях є можливість використання високошвидкісних послуг на наявній інфраструктурі та звичайних послуг на високошвидкісній інфраструктурі. Тож необхідно звернути увагу на вдосконалення колійного комплексу шляхом впровадження нових технологічних рішень, особливо при ремонті колій.
MAIN PRIORITIY AREAS AND PROBLEMS OF UKRZALIZNYTSIA’S DIGITALIZATION
Authors: Nazarenko I. L. , Hoppman M. McKay 
Published: June 2023

In this paper we have outlined the main priority areas in digitalization of Ukrzaliznytsia according to the ones stated by the Community of European Railway and Infrastructure Companies in Vienna declaration, and also analyzed the current situation regarding digitalization in Ukrainian railway transport in each of these areas. The priority areas are Smart technical operations, Smart infrastructure, Smart freight and passenger transport, Smart ticketing, and Smart human resources. There are a few projects implemented by Ukrzaliznytsia (such as tracking rolling stock in real time with the help of the Internet of things, digital ticket, updating the automated "Monthly Plan" system, creating an electronic client's office, modernizing the customer service call center, etc.) and several ones which are in progress. Smart human resources appeared to be the less developed area in which there are no relevant projects, only regular professional development courses provided once in 4 years. Therefore we suggested digitalization of HR departments so that their specialists will be able to deal with great amount of employees’ documents more efficiently and therefore, boost effectiveness of dealing with personnel. Moreover, it might bring to life a shift to transparency, e.g. transparent application and recruitment process, transparent remuneration and feedback. But we should admit that a great problem connected with nepotism and corruption makes aforementioned shift highly unlikely and this is an urgent problem to cope with. Also, we have identified main problems impeding digitalization in Ukrzaliznytsia with the help of a cause-effect diagram (Ishikawa diagram). They appeared to be caused by financial factors (lack of investments), human factors (ineffective staff motivation and manager’s reluctance to change), technical factors (insufficient technical level of fixed asset) and organizational factors (no system approach to digitalization). To our mind, the crucial one that should be solved first is manager’s reluctance to change (due to corruption and outdated mindsets). It explains the absence of official Strategy or Programme of digitalization in Ukrzaliznytsia and consequently, a relevant department in its structure. Should this great obstacle be overcome, others will be solvable, especially with the help of European railways, as it is promised in Vienna Declaration on commitment to support Ukrainian Railways. The results obtained in the paper can be used in further research in this realm, particularly in working out Strategy of digitalization for Ukrzaliznystia.
ЕКОНОМІЧНА БЕЗПЕКА ПІДПРИЄМСТВА. ТЕОРЕТИЧЕСКИЙ АСПЕКТ
Authors: Воловельская І. В. , Шемшур М. , Кирильченко C. 
Published: June 2023

Сьогодні одним із стратегічних пріоритетів будь-якого підприємства є забезпечення його сталого розвитку, що неможливо без дотримання балансу між його витратами (як матеріальними, так і моральними і часовими) і прибутком (також як матеріальним, так і моральним). А для цього необхідне створення комплексної системи безпеки підприємства, яка з одного боку базувалася на сучасних принципах розвитку суспільства, а з іншого враховувала потреби самого підприємства. Слід зазначити, що вітчизняні підприємства не є конкурентами на світових ринках. Це пов'язано в першу чергу з тим, що Україна практично не підтримує вітчизняних підприємців, не сприяє розвитку науки і в той час, як інші країни ґрунтуються на інноваційному шляху розвитку, залишається лише сировинною державою. В умовах, коли підприємства змушені розвиватися «на свій страх і ризик» і не мають практично ніякої підтримки з боку держави, повинні досить швидко і мобільно реагувати на зміни на внутрішньому і зовнішніх ринках, але при цьому мають досить розвинений кадровий і ресурсний потенціал, єдиним виходом, на наш погляд є створення комплексної системи економічної безпеки, за допомогою якої стало б можливо скористатися наявними перевагами для вирішення існуючих проблем. Сучасний стан світової соціально-економічної системи піднімає достатню кількість важко вирішуваних і практично непрогнозованих ситуацій. Наслідки розвитку таких сценаріїв призводять до виявлення абсолютно нового сенсу поняття безпеки як на глобальному, так і на локальному рівнях. Актуальними стають розгляд таких факторів економічної безпеки підприємства як психологічний, релігійний, моральний.
A pathway to In-Memory Computing driven Wellness Digital Twin utilizing Remote Patient Monitoring System (WDT-RPMS)
Authors: Kishore Kumar Kadari  , Ali Shiri Sichani  , Wilfrido  Moreno  
Published: June 2023

With fast-paced digital transformation, precision medicine has been an essential part to elevate the conscience of healthcare with respect to the biopsychosocial model with the help of Remote Patient Monitoring Systems. Digital twins have been successful in many industries, in healthcare, it can optimize the wellness of the human body to improve physical and mental wellness including the non-diagnosed diseased populations and rural populations.
In this paper, we discuss the challenges in terms of computing to implement a complex system called Wellness Digital Twin-based Remote Patient Monitoring System following Model-Based Systems Engineering (MBSE), we present the definition, needs of the digital twin in the context of wellness and healthcare, a feasibility study followed by a concept of operations. Subsequently, we present the requirements and architecture including In-memory computing, (Emerging NonVolatile Memories, memristive devices) that will enhance sensing, analytics, and levers of action.
An 8-bit TDC implemented with two nested Johnson counters
Authors: Jonathan  Santiago-Fernandez  , Alejandro  Diaz-Sanchez  , Gregorio  Zamora-Mejia  , Jose Miguel  Rocha-Perez  
Published: June 2023

This work presents a Time-to-Digital Converter implemented using two nested Johnson counters and suitable for time-lapse measurement applications. The proposed structure is composed of two 4-bit nested counters, two digital-logic control networks, two registers and a single decoder. Semi-dynamic logic was used for the decoder to reduce its power consumption. The system has a standard digital output and is powered by a 1.8 V supply with a total power consumption of 32.4 mW. A prototype was fabricated using a TSMC 180 nm CMOS technology. The proposed structure uses a 508 µm x 225 µm area. In addition, this TDC has a standard deviation of 0.78 LSB with a fixed input time interval operating at a frequency of 1 MHz. The proposed structure shows good performance results and repeatability for continuous conversion conditions, these results are attributed to the simplicity of the system and the use of counters with minimum gate delay as the main elements for the TDC.
COMPARISON OF OPTIMIZATION STRATEGIES AND ESTIMATION TECHNIQUES FOR RADIO NETWORK PLANNING AND OPTIMIZATION PROBLEMS
Authors: Prokopets Volodymyr , Globa Larysa 
Published: June 2023

Background. Radio network planning is one of the main phases of the cellular network lifecycle, as it determines capital and operating costs and allows system performance evaluation at any given time. An accurate and comprehensive analysis of existing network statistics is necessary for proper cell planning during network expansion. These statistics are collected throughout the life cycle of the cellular network and usually have certain imperfections (heterogeneity of statistics, which have different densities in different parts of the search space, up to the presence of significant voids, etc.) The system describing the functioning of the radio network can be represented as a black box because its internal processes are too complex to be defined by mathematical functions. This determines the need to use appropriate tools.
Objective. The purpose of the paper is to create a toolkit that allows finding the proper relationships between network parameters to define target values that will help to build an effective network plan in terms of performance and costs for its creation and operation. The tools should be able to work efficiently using the minimum set of available statistical data, as well as taking into account their imperfections.
Methods. Mathematical estimation and optimization methods are used, namely Ordinary Least Squares, Ridge Regression, Lasso, Elastic-net, LARS lasso, Bayesian Ridge Regression, Automatic Relevance Determination, Stochastic gradient descent, Theil-Sen estimator, Huber Regression, Quantile regression, Polynomial regression. We consider 12 estimation methods in combination with two optimization strategies. Additionally, the method of partial analysis of the search space with different number of configurations is considered.
Results. A software package using the Python programming language has been created, which contains a practical implementation of all the considered estimation and optimization methods, as well as tools for evaluating arbitrary configurations of the software package (benchmark) and visualizing the results. The best estimation method is Ordinary Least Squares for finding the optimal configuration of the statistical parameters of the 4G radio network to maximize the download speed. To obtain satisfactory results, it is enough to consider 25 initial and 250 estimated points - a larger number of points will not significantly increase prediction accuracy.
Conclusions. The results indicate the possibility of using the created software package for radio network planning tasks. Further research is aimed at expanding the created software package's functionality and considering additional estimation methods and optimization strategies.
Keywords: radio network planning; radio network optimization; cellular networks; estimation techniques; optimization strategies; big data; 2G; 3G; 4G; CQI; capacity.
THE PROGRAM FOR ASSESSING THE CONNECTIVITY OF NODES OF WIRELESS EPISODIC NETWORKS UNDER THE CONDITION OF USING UAVS
Authors: Sushin Ihor , Lysenko Olexandr , Valuiskyi Stanislav 
Published: June 2023

Background. Based on analytical mathematical models, the duration of connectivity of mobile subscribers (nodes) (MS) of a wireless episodic network (WEN, consisting of MS and UAV) was investigated in conditions of direct radio visibility and considering the relaying.
Objective. The purpose of the work is to find methodological approaches to ensure the connectivity of WSN nodes, which is a necessary condition for obtaining information from WSN in the absence of communication infrastructure.Methods. Simulation modelling based on MAPLE 14 software package and analytical calculation methods are used.
Results. It is shown that the duration of connectivity is directly proportional to the size of the coverage area and inversely proportional to the movement speed of nodes. The mobility nature (scenario) of nodes also affects the duration of connectivity. The simulation of the nodes' movement was carried out under 4 scenarios: "march", "incoherent", "random wandering in the field" and "random wandering in the city". The largest values of the connectivity duration correspond to the third scenario, and the smallest - to the second (with a fixed radius of the coverage area and the movement speed of nodes). Thus, the average connectivity duration of the UAV-pedestrian connection in the event of an "incoherent" will be about 36 minutes, and the UAV-car connection - about 5 minutes.
Conclusions. The system and functional parameters of the networks, which were obtained as a result of the research, will form the basis of the initial data and limitations of the mathematical model, and will also make it possible to determine the initial placement of the UAV network at the planning stage.
ESTIMATION OF POTENTIAL PARAMETERS FOR 5G MOBILE NETWORKS RADIOCHANNELS
Authors: Berezovsky Igor , Noskov Vyacheslav 
Published: June 2023

Background. Deploying of 5G mobile networks opens up wide opportunities for the development of IoT, high-speed access to Internet services, industrial automation, telemedicine and other modern services. Peak transmission rate, latency, and spectral efficiency are important indicators for network performance. These indicators are primarily determined by the 5G-NR radio subsystem, which is built using modern technologies such as OFDM, interference-resistant LDPC coding and massive MIMO antenna systems. In addition, frames and time-frequency resource distribution in 5G-NR are improved for both Downlink and Uplink. All of these are described in various 3GPPP documents, but to evaluate these indicators, it is necessary to create an appropriate methodology and perform calculations.
Objective. The purpose of the research is to create a methodology and estimate the potential values of peak transmission rate, latency and spectral efficiency of 5G-NR radio channels.
Method. Analytical calculation methods based on recommendations and source data of 3GPP documents are used.
Results. Analytical studies show that 5G-NR radio channels can potentially provide a peak transmission up to 37 Gbps, latency less than 0.5ms, and spectral efficiency up to 46 bps/Hz rate in the Downlink direction using 50 MHz FR1 frequency band, QAM256 modulation and MIMO 8 x 8-antenna system.
Conclusions. The researched 5G-NR radio channels efficiency indicators meet current and future services requirements.
BUILDING MINIMUM SPANNING TREES BY LIMITED NUMBER OF NODES OVER TRIANGULATED SET OF INITIAL NODES
Authors: Romanuke Vadim 
Published: June 2023

Background. The common purpose of modelling and using minimum spanning trees is to ensure efficient coverage. In many tasks of designing efficient telecommunication networks, the number of network nodes is usually limited. In terms of rational allocation, there are more possible locations than factually active tools to be settled to those locations.
Objective. Given an initial set of planar nodes, the problem is to build a minimum spanning tree connecting a given number of the nodes, which can be less than the cardinality of the initial set. The root node is primarily assigned, but it can be changed if needed.
Methods. To obtain a set of edges, a Delaunay triangulation is performed over the initial set of nodes. Distances between every pair of the nodes in respective edges are calculated. These distances being the lengths of the respective edges are used as graph weights, and a minimum spanning tree is built over this graph.
Results. The problem always has a solution if the desired number of nodes (the number of available recipient nodes) is equal to the number of initially given nodes. If the desired number is lesser, the maximal edge length is found and the edges of the maximal length are excluded while the number of minimum spanning tree nodes is greater than the desired number of nodes.
Conclusions. To build a minimum spanning tree by a limited number of nodes it is suggested to use the Delaunay triangulation and an iterative procedure in order to meet the desired number of nodes. Planar nodes of an initial set are triangulated, whereupon the edge lengths are used as weights of a graph. The iterations to reduce nodes are done only if there are redundant nodes. When failed, the root node must be changed before the desired number of nodes is changed.
A Novel 2.5D Deep Network Inversion of Gravity Anomalies to Estimate Basement Topography
Authors: Ashena Zahra , Kabirzadeh Hojjat , Kim Jeong Woo , Wang Xin , Ali Mohammed 
Published: June 2023

Summary
A novel 2.5D intelligent gravity inversion technique has been developed to estimate basement topography. A deep neural network (DNN) is used to address the fundamental nonuniqueness and nonlinearity flaws of geophysical inversions. The training data set is simulated by adopting a new technique. Using parallel computing algorithms, thousands of forward models of the subsurface with their corresponding gravity anomalies are simulated in a few minutes. Each forward model randomly selects the values of its parameter from a set of predefined ranges based on the geological and structural characteristics of the target area. A DNN model is trained based on the simulated data set to conduct the nonlinear inverse mapping of gravity anomalies to basement topography in offshore Abu Dhabi, United Arab Emirates. The performance of the trained model is assessed by making predictions on noise-free and noise-contaminated gravity data. Eventually, the DNN inversion model is used to estimate the basement topography using pseudogravity anomalies. The results show the depth of the basement is between 7.4 km and 9.3 km over the Ghasha hydrocarbon reservoir. This paper is the 2.5D and improved version of the research (SPE-211800-MS) recently presented and published in the Abu Dhabi International Petroleum Exhibition & Conference (31 October–3 November 2022) proceedings.