bluuebunny/crossref_metadata_2025 huggingface dataset:
Retrospective Analysis of Complications from Prostate Cancer among Nigerians
Authors: Raphael Dr. John E. , Abhulimen Dr. Victor
Published: March 2022

Background: Prostate cancer (PCa) may be asymptomatic at an early stage and may run an indolent course that requires minimal or no treatment. Early diagnosis through screening reduces the rate of advanced diseases. Whereas, in the western countries where screening is more prevalent, many presents early with a chance for curative treatment. In Africa, late presentation is often the case with palliative treatment sadly the only choice. Objective: To evaluate the associated complications in patients with prostate cancer and assess the Gleason’s grade as a risk factor for complications observed in patients with prostate cancer, in Port Harcourt, Rivers, Nigeria. Method and Methodology: This was a retrospective study carried out over ten years, between January 2011 and December 2020. All patients with histologically confirmed prostate cancer who presented to the University of Port Harcourt Teaching Hospital, Sophia clinic, and Rosivylle clinic were evaluated. The folders were retrieved and their age, presenting complaints, skeletal survey, and biopsy reports were evaluated. Patients with incomplete records were excluded from the study. These data were collated using Microsoft Excel 2016 version and they were analyzed using SPSS version 20. Results: There were 335 patients with PCa with a mean age of 68.71year. The commonest complication was urinary symptoms observed in 192 with urine retention 119(35.5%) and nephropathy 73(21.8%). The spine was the commonest site of bone spread observed in 160(47.8%) followed by the femur 62(18.5%). Anaemia was the next common. There was an association between age, presence of urinary symptoms, and bone involvement with the Gleason’s Grade. However, there was a strong association of the overall presence of complications with Gleason’s score. Conclusion: Men with prostate cancer tend to present with advanced disease in Port Harcourt. The most common presentation was lower urinary tract symptoms followed by low back pain. Complications are associated with high Gleason’s grade cancers. Screening may aid in early diagnosis and cure of the disease especially for men of African descent.
Body Mass Index and Body Fat Percentage for the Assessment of Obesity-Induced Abnormalities in Dynamic Lung Volumes
Authors: V Ashraf O , Merghani Tarig H , Alawad Azza O
Published: March 2022

The body mass index (BMI) is commonly used in the assessment of obesity and overweight; however, its use in the diagnosis of adverse effects of obesity is questioned. This study aims to explore the agreement between the BMI and the calculated body fat percentage (BF%) in detecting obesity-induced ventilatory abnormalities. We carried out a cross-sectional study on a random sample of 150 healthy male students, aged 17 to 25, with a mean age of 20.8 ± 2.6 years. We measured the BMI, BF%, and pulmonary function of each participant. The students were classified into overweight-obese and normal groups based on the BMI and the BF% results. The Chi-square test was performed to analyze differences between the groups. About one-fifth of all participants had a fat mass ≥ 20%, among which 90% fulfilled the BMI definition of overweight and obesity (p < 0.05). The comparison between the two BF% groups showed that 20% of the overweight-obese group had a significant reduction in FEV1 (p= 0.025, Relative Risk= 3.00, 95% Confidence Interval= 1.13-7.99), and 23% of them had a significant reduction in FVC (p= 0.012, Relative Risk= 3.11, 95% Confidence Interval= 1.26-7.68). The changes in FEV1/FVC were statistically insignificant. The effects of the BMI categories on the dynamic lung volumes were statistically insignificant. The direct estimation of BF% is better than the calculation of BMI in the diagnosis of obesity-induced abnormalities in lung function. The use of BMI as an indicator of obesity in population health studies should be avoided.
Trauma nurses’ Role and Emergency Management skills at Tertiary Care Hospital, Lahore
Authors: Akhtar Zubaida , Khan Mehdi Hayat , Noureen Shazia , Jamila Jamila , Shahzadi Asifa
Published: March 2022

Background: Practicing in trauma unit can strengthen nurses’ knowledge about the association of past trauma and the impact of trauma on the patient’s current mental illness. An aim of this debate is to avoid potentially re-traumatizing a patient during their episode of care. This educational discussion can provide nurses with content that describes the interplay of neurological, biological, psychological, and social effects of trauma that may reduce the likelihood of re-traumatization. Although multidisciplinary environments, the translation into clinical practice by nurses working in emergency departments (EDs) is unknown. However, before ED nurses can begin to practice, they must first be provided with meaningful and specific education about their role. Therefore, the aim of this debate was to evaluate the role and emergency management skills of ED nurses. Methods: This debate was conducted as exploratory research with a descriptive study design. Quantitative data were collected with an 18-item pre-education and post-education questionnaire. Results: A total of 34 ED nurses participated in this education discussion. There was meaningful change (p < 0.01, r ≥ 0.35) in 9 of the 18-items after discussion. The debate was based on the perceived effectiveness to evaluate the role and emergency management skills of ED nurses. Conclusion: Emergency department nurses became more informed of the interplay of trauma on an individual’s mental health. However, providing care to trauma patients in an ED setting was a considerable challenge primarily due to time constraints relative to the day-to-day. ED environment and rapid turnover of patients with potentially multiple and complex presentations. Despite this, nurses played a good role to reduce the likelihood of re-traumatization.
O periplo accidentado da contratación de emerxencia
Authors: Heredero del Campo Carlos
Published: March 2022

La contratación pública es una efectiva herramienta al servicio de las administraciones públicas para hacer frente a las necesidades de interés general y, de manera especial, a aquellas producidas a raíz de una emergencia. Para poder canalizar una respuesta ante estas situaciones imprevisibles de forma ágil y rápida, se contempla el régimen excepcional de la tramitación de emergencia, que, en contraposición a los largos procedimientos administrativos y en aras de la inmediatez, dispensa de la necesidad de sujetarse a determinados formalismos recogidos en la ley. Este trabajo pretende realizar un breve repaso histórico-jurídico de este régimen, de su evolución, contenido y características, y cuyo análisis puede ayudarnos a comprender mejor su alcance y utilidad actual y futura.
Entidades de certificación, entidades de colaboración y simplificación administrativa en Galicia
Authors: Antelo Martínez Alejandro Ramón
Published: March 2022

Las entidades de certificación de conformidad municipal, creadas por la Ley 9/2013, de 19 de diciembre, del emprendimiento y de la competitividad económica de Galicia, en aras del mandato de simplificación de procedimientos contenido en la Directiva de servicios de la Unión Europea, han experimentado cambios sustanciales a partir de la aprobación de la Ley 9/2021, de 25 de febrero, de simplificación administrativa y de apoyo a la reactivación económica de Galicia, la cual, a su vez, crea las entidades de colaboración ambiental. A ambas entidades dedica su objeto este estudio, con atención a sus antecedentes y a la situación actual.
Jurisprudencia contencioso-administrativa
Authors: Cominges Cáceres Francisco De
Published: March 2022

Jurisprudencia contencioso-administrativa
Pengaruh Angka Harapan Hidup, Rata-rata Lama Sekolah dan Konsumsi Rumah Tangga Terhadap Pertumbuhan Ekonomi di Kabupaten/Kota Provinsi Lampung, 2014-2019
Authors: Rasnino Cass Alexander , Nuryadin Didi , Suharsih Sri
Published: March 2022

Penelitian ini menganalisis pengaruh angka harapan hidup, rata-rata lama sekolah dan konsumsi rumah tangga terhadap pertumbuhan ekonomi di Kabupaten/Kota Provinsi Lampung tahun 2014-2019. Penelitian ini menggunakan metode kuantitatif. Jenis data yang digunakan adalah sekunder dengan data panel cross section 15 Kabupaten/Kota. Alat analisis yang digunakan adalah kointegrasi data panel. Hasil menujukkan bahwa angka harapan hidup berpengaruh positif dan tidak signifikan terhadap pertumbuhan ekonomi, rata-rata lama sekolah berpengaruh positif dan signifikan terhadap pertumbuhan ekonomi dan konsumsi rumah tangga berpengaruh positif dan signifikan terhadap pertumbuhan ekonomi.
Pengaruh Citra Merek dan Kualitas Produk Philips terhadap Minat Beli Konsumen pada Yogya Garnd Majalengka
Authors: Asri Siti Kaenah , Julisman Iman
Published: March 2022

Penelitian ini bertujuan untuk mengetahui bagaimana pengaruh citra merek dan kualitas produk Philips terhadap minat beli konsumen baik secara parsial maupun simultan. Metode yang digunakan dalam penelitian ini adalah menggunakan analisis deskriptif dan analisis verifikatif. Penelitian ini merupakan jenis survei dengan memberikan kuesioner secara langsung kepada konsumen produk Philips di Yogya Grand Majalengka. Sampel dalam penelitian ini sebanyak 93 orang. Analisis data yang digunakan koefisien korelasi, regresi linier, koefisien determinasi, dan uji hipotesis menggunakan uji one sample, uji t, dan uji F. Hasil dari analisis regresi berganda yang telah dilakukan diperoleh hasil yaitu, Y = 3,410 +  0,227 X1 + 0,181 X2. Variabel independen yang paling berpengaruh terhadap variabel dependen adalah variabel citra merek (0,227). Hasil uji t membuktikan bahwa semua variabel independen (citra merek dan kualitas produk) mempunyai pengaruh positif terhadap variabel dependen yaitu minat beli konsumen. Koefisien determinasi (R2) yang diperoleh sebesar 0,334%. Hal ini berarti 33,4%  minat beli konsumen dipengaruhi oleh citra merek dan kualitas produk sisanya yaitu 66,6% ditentukan oleh variabel lain yang tidak dijelaskan dalam penelitian ini.
Práticas educativas sobre planejamento reprodutivo com mães adolescentes: relato de experiência
Authors: Claudionete Abreu Costa  , Elian Rodrigues Ferreira  , Iderlania Maria de Oliveira Sousa  , Ana Hélia Lima Sardinha  , Nair Portela Silva Coutinho
Published: March 2022

Objetivo: relatar experiência na realização de práticas educativas com puérperas adolescentes em uma maternidade pública. Método: estudo descritivo do tipo relato de experiência, por roda de conversa. Os encontros aconteceram duas vezes por semana, pela manhã em de abril de 2021. Durante a visita de enfermagem as puérperas (de 13 a 18 anos) foram convidadas para participar da roda de conversa. A experiência aconteceu em uma maternidade de um município de São Luís- MA. Foram realizadas oficinas com puérperas que se encontravam internadas na maternidade. Resultados: verificou-se entre as puérperas falta de conhecimento sobre métodos contraceptivos. Relacionado ao comportamento sexual, observou-se timidez, retraimento e até medo de falar, principalmente quando ali, permaneciam acompanhantes. Conclusão: É nítido a importância da interação profissional, principalmente quando a experiência possibilita a todos envolvidos a troca de saberes, desde o conhecimento da cultura e realidade socioeconômica das puérperas à troca do conhecimento cientifico e popular.
A relação custo/efetividade de exames de imagem no diagnóstico da pneumonia comunitária adquirida
Authors: Nivaldo Borges Nunes Junior  , Natalia Borges Nunes  , Marcos Antônio Barbosa Pacheco
Published: March 2022

Objetivo: Analisar a relação custo-efetividade de métodos de imagem radiografia e tomografias, na detecção de pneumonias adquiridas comunitária. Método: Tratou-se de uma revisão de literatura integrativa, que consistiu em uma abordagem metodológica mais ampla, pois admite a inclusão de estudos experimentais e não experimentais para que seja realizada uma compreensão completa do estudo analisado. Resultados: A análise de custo-efetividade é um método que compara duas ou mais metodologias e avalia custos versus unidades não monetárias de resultados como anos de vida ganhos, número de vidas salvas, casos prevenidos e outras medições para justificar a meta obtida com um gasto. Conclusões: Diante tantos questionamentos percorridos na pesquisa, percebe-se que ao comparar as duas técnicas de exames de imagem, o sistema Raio X é tão eficaz quanto a Tomografia Computadorizada.
A importância da estratégia saúde da família para a resolutividade da atenção primária à saúde: uma reflexão
Authors: Eudijessica Melo de Oliveira  , Debora Lorena Melo Pereia  , Dorlene Maria Cardoso de Aquino  , Isaura Letícia Tavares  , Bruno Luciano Carneiro Alves de Oliveira  , Poliana Pereira Costa Rabelo
Published: March 2022

Objetivo: refletir sobre a importância daEstratégia Saúde da família para a resolutividade da Atenção Primária à Saúde. Método: Estudo de reflexão que se fundamentou em uma base teórica filosófica, além da percepção das autoras sobre o assunto abordado. A pesquisa foi realizada no período de outubro a dezembro de 2021. Resultados: a Estratégia Saúde da família é o principal mecanismo estruturante da Atenção Primária à Saúde no Brasil e Entre os aspectos principais e as inovações vindas do processo de sua implantação, a resolutividade merece destaque sendo uma proposta capaz de atender o paciente em todo o ciclo de vida de forma holística, com ações e serviços de saúde, além de buscar maior equidade. Conclusão: foram elucidadas evidencias que causaram significativo impacto na saúde das pessoas no Brasil e, por meio destas, nota-se sua importância através da melhoria do acesso aos serviços de saúde.
A enfermagem em saúde mental na perspectiva territorial: práticas frente às necropolíticas na pandemia
Authors: Janaina Pinto Janini  , Paulo Duarte de Carvalho Amarante  , Paolla Pinheiro Mathias  , Daniela Bastos Silveira  , Danielle Bessler  , Daniel da Silva Granadeiro
Published: March 2022

Objetivo: descrever as práticas em saúde mental dos enfermeiros com base no território e as facilidades e dificuldades encontradas nesse processo. Método: pesquisa realizada de maio a dezembro de 2020, com coleta de dados entre 15 agosto a 20 setembro de 2020. Utilizou o método de narrativa de vida com 10 enfermeiros que atuam em Centros de Atenção Psicossocial. Os resultados foram analisados sob os referenciais de necropolítica de Achille Mbembe. Resultados: As ações em saúde foram orientadas para a restrição de atendimento presencial nos serviços pela pandemia, produziram necropolitização e desvinculação dos usuários de saúde mental e precarização do cuidado da enfermagem. Ainda assim, houve elaboração de estratégias para recondução da comunicação e vínculo com os usuários. Conclusão: foram desenvolvidas re-existências e re-configurações do cuidado de enfermagem, com desenvolvimento de estratégias de comunicação, junto a rede de apoio psicossocial, enquanto aprimoramento de competências de habilidades de produção de viver.
Gestão de enfermagem de unidade de hemodiálise na adequação para atendimento de covid-19: relato de experiência
Authors: Eremilta Silva Barros  , Janielle Ferreira de Brito Lima  , Eliana Brugin Serra  , Adriana Gomes Nogueira Ferreira  , Lívia Maia Pascoal  , Isaura Letícia Tavares Palmeira Rolim
Published: March 2022

OBJETIVO: relatar a experiência do enfermeiro gerente da equipe de enfermagem de uma unidade de hemodiálise, na busca de soluções estratégicas para o enfrentamento da pandemia da COVID-19. MÉTODOS: Trata–se de um relato de experiência do planejamento de ações realizado pela gerente da equipe de enfermagem de um serviço de hemodiálise no atendimento de pacientes. A experiência ocorreu no período de março a abril de 2020. RESULTADOS: Para atender a necessidade de adequação do atendimento de enfermagem na unidade de hemodiálise para o enfrentamento da pandemia, elaborou-se Procedimentos Operacionais Padrão específicos e realizou-se treinamento da equipe sobre a doença, medidas de precaução e os novos protocolos. CONCLUSÃO: O enfermeiro gerente da equipe de enfermagem desempenhou um papel importante no enfrentamento da pandemia de COVID-19 ao adequar o fluxo de atendimento e os procedimentos realizados pela equipe com foco na segurança dos pacientes e profissionais.
Epilepsia na gestação de alto risco e desfechos perinatais
Authors: Rebecca Christophoro Packer  , Lincoln Tsuyoshi Sato  , Flavia Cristina Vieira Frez  , Patricia Bossolani Charlo  , Sandra Marisa Pelloso  , Marcos Benatti Antunes
Published: March 2022

Objetivo: Análisar os resultados perinatais de gestantes com epilepsia como condição clínica pré-existente. Método: Trata-se de um estudo epidemiológico, observacional e retrospectivo, com abordagem quantitativa. A população foi constituída a partir da pesquisa de todos os prontuários, relatórios e cartão das gestantes atendidas e classificadas como alto risco com Condição Clínica Pré-Existente de Epilepsia e atendidas no ambulatório de alto risco referência da 15ª Regional de Saúde, localizado na cidade de Maringá/PR. Resultados: Observou-se que não houve nenhuma associação significativa entre epilepsia como condição clínica pré-existente e os resultados perinatais. Conclusão: Apesar de a gestação associada a epilepsia ser considerada de alto risco, o acompanhamento adequado em ambulatório especializado em pré-natal de alto risco e Unidade Básica de Saúde durante o pré-natal contribui significativamente para diminuir a taxa de complicações obstétricas, maternas e fetais.
Nível de conhecimento dos cirurgiões dentistas frente a prescrição medicamentosa a gestantes
Authors: Denilson Júnior Mendes Pantoja  , George Hilton da Silva Gonçalves  , Romualdo Paes de Andrade Neto  , Leila Maués de Oliveira Hanna
Published: March 2022

Objetivo: avaliar o grau de conhecimento dos cirurgiões dentistas frente a prescrição medicamentosa em pacientes gestantes. Método: levantamento de dados por meio de aplicação de questionário contendo 19 perguntas relativas prescrição medicamentosa em gestantes. Resultados: 33,01% dos participantes tinham entre 26 e 30 anos de idade, 31,07% possuíam entre 6 e 10 anos de tempo de serviço e 76,70% possuem alguma especialidade. Dos 103 entrevistados, 39,7% prescrevem ansiolíticos para gestantes, 15,4% prescrevem analgésicos contraindicados, 73,79% prescrevem penicilina como antibiótico de escolha, 39,7% prescrevem anti-inflamatórios, no anestésico de escolha 45,63% assinalaram Lidocaína + Epinefrina: 1:100.000 e 16,4% optaram por anestésicos não seguros. Conclusão: o nível de conhecimento dos cirurgiões dentistas em relação a média de acertos das perguntas sobre prescrição de medicações a gestantes foi insuficiente a necessidade de conhecimento frente a esse tipo de atendimento especial. Não houve diferença entre a quantidade de acertos e o maior ou menor tempo de experiência profissional.
Análise espacial e perfil epidemiológico de ocorrências de óbitos por covid-19 no vale do paraíba
Authors: Amanda Medeiros Ribeiro  , Elaine Viana Cabral  , Katia Margareth Bitton de Moura  , Hércules de Oliveira Carmo  , Fabiano Fernandes de Oliveira
Published: March 2022

Objetivo: Analisar e descrever o perfil epidemiológico e a tendência da distribuição espacial de ocorrência de óbitos por COVID-19, nos primeiros 18 meses de pandemia na região do Vale do Paraíba – São Paulo/ Brasil. Método: Trata-se de um estudo epidemiológico, descritivo do tipo ecológico e de base populacional, cujo grupo de variáveis elencadas incluem dados secundários sobre a ocorrência de óbitos por COVID-19. Os dados são provenientes da plataforma Fundação Sistema Estadual de Análise dos Dados, que alimenta as fichas de notificação de Síndrome Respiratória Aguda Grave, cujos casos evoluíram para óbito. Resultado: A taxa de óbitos por população nos mostrou aproximadamente o percentual da população que faleceu por COVID-19 nos últimos 3 semestres. Conclusão: De forma similar ao cenário mundial, a infecção por COVID-19 configura-se como um problema de saúde pública, sendo necessária atenção à circulação do vírus no interior paulista, alerta aos grupos de risco e intervenções sanitárias efetivas.
Influence of aluminum on structural-phase state, corrosion resistance and tribomechanical properties of composite coatings obtained by hypersonic metallization
Authors: Grigorchik A.N. , Kukareko V.A. , Astrashab E.V. , Belotserkovsky M.A. , Sosnovsky A.V.
Published: March 2022

The structural-phase state, tribotechnical and durometric properties of hypersonic coatings made of steels 95Cr18 and 06Cr19N9T, as well as pseudo-alloys 95Cr18—AD1 and 06Cr19Ni9Ti—AD1, obtained by hypersonic metallization, have been investigated. It was found that the sprayed coatings from pseudo-alloys 95Cr18—AD1" and 06Cr19Ni9Ti—AD1 contain mainly α-Fe, which is due to alloying of steel particles in the process of spraying with aluminum. It is shown that coatings made of 95Cr18 and 06Cr19Ni9Ti steels have a higher wear resistance under dry friction conditions as compared to composite coatings. The reduced wear resistance of pseudo-alloys is associated with the presence of a large amount of relatively soft aluminum in them. It is shown that the corrosion resistance of a composite coating made of Fe—Al in a 10 % aqueous solution of NaCl is about 2 times higher than that of coatings made of high-chromium steels 95Cr18 and 06Cr19Ni9Тi.
Piezoelectric motors for nanotechnology and robotics
Authors: Afonin S.M.
Published: March 2022

Piezoelectric motors for nanotechnology, microelectronics, electron microscopy, adaptive optics, mechatronics and robotics are considered. The mechanical characteristics of a simple piezoelectric motor are investigated. For a piezoelectric vibration motor the angular velocity of the rotor is determined.
Investigation of the effect of carbide heterogeneity on the contact endurance of high-carbon complex-alloyed steel
Authors: Seval'nev G.S. , Korobova E.N. , Romanenko D.N. , Doroshenko A.V.
Published: March 2022

The influence of carbide inhomogeneity on the contact endurance of high-carbon complex-alloyed steel. The study was carried out on samples of semi-finished products (rods) with different distribution of the carbide phase in the structure, obtained by hot plastic deformation with different degrees of reduction. According to the results of the test for contact fatigue, it was found that the uneven distribution of the carbide phase in the structure reduces the level of contact endurance.
Monitoring the surfaces of saturation of large forgings of alloy VТ20 by the interstitial impurities
Authors: Gadalov V.N. , Gubanov O.M. , Vornacheva I.V. , Filonovich A.V. , Shirobokov P.V. , Khalin A.N.
Published: March 2022

We have investigated the saturation of the surface of large forgings of alloy VТ20 by the interstitial impurities and appearance on it non metallic compounds. Simulated the process of gas saturation in several ways, depending on the heating temperature, of the environment exposure time.
To calculate the stress-strain state of a chrome-plated gear wheel made of 40X structural steel
Authors: Kitaev N.I. , Yakimovich Yu.V. , Andrianova N.V. , Pichkhidze S.Ya.
Published: March 2022

The results of calculating a gear wheel for stability to maintain its original shape, fatigue, surface rigidity of teeth made of 40Kh structural steel under the action of a cyclic load of 50 N applied to the wheel tooth in the SolidWorks 2018 Simulation and APM WinMachine software package, after thermal diffusion chromium plating. Experimental data of energy dispersive analysis, results of measuring microhardness before and after thermal diffusion chromium plating are described. Data are presented that illustrate the effect of thermal diffusion chromium plating on the surface characteristics of 40Kh steel. The prerequisites for the widespread use of this type of hardening coating are indicated.
Coating of glass by condensation with ion bombardmen
Authors: Mokritsky B.Ya. , Mokritskaya E.B.
Published: March 2022

The application of coatings by condensation with ion bombardment on products that do not have electrical conductivity, for example, on glass, is technically impossible. But in certain conditions, this can be done due to additional equipment placed in the chamber of the coating installation. It is not possible to achieve high adhesion strength of the coating material with the material of the sprayed product, but the decorative effect of such a coating on the product is provided. The paper shows how and due to what the possibility of coating products made of glass is provided.
GOOGLE: ITS INFLUENCE ON THE TEACHING AND LEARNING OF TEACHERS AND STUDENTS IN THE NEW NORMAL
Authors: Dr. Arturo G. Palaming
Published: March 2022

Google is named after the mathematical term googol, which is defined as the value represented by a one followed by a hundred zeros followed by another one. Google is the world’s most popular Internet search engine, and its primary service provides customers with targeted search results selected from over 8 billion web pages, according to Google. Larry Page and Sergey Brin, both Stanford dropouts, developed Google search technology as part of a college project in which they were both involved. As a result, an insight into Google Essay discusses how Google works as well as how it came to exist. This paper explained the effects of google on the teaching and learning of teachers and students in the new normal.
KEYWORDS: Google, teaching, learning, students’ learning, teaching skills of teachers, the importance of Google in teaching and learning of students.
A SURVEY ON IMAGE PROCESSING TECHNIQUES FOR MOTION DETECTION IN VIDEO SURVEILLANCE SYSTEM
Authors: Mary Magdalene Viola.W  , Victor.S .P
Published: March 2022

Video surveillance is a normal security procedure in the living environments nowadays due to the requirement of continuous cost effective automatic monitoring necessity for the safe and peaceful life structure. The identification and detection of moving persons or objects is a tedious process with the optimal accuracy in dimensions and validity. The essential and required improvements in the entire methodology critically depend upon the image processing approaches with effective care on the image frames. For this goal Image processing plays a vital role in order to handle the video data in proper way for analysis and prediction of performances for the improvement of motion detection in video surveillance system domain results. This paper presents a survey on motion detection analysis for video surveillance system.
KEYWORDS—Image processing, Motion detection, Video surveillance, Prediction, Performance
Studying mis- and disinformation in Asian diasporic communities: The need for critical transnational research beyond Anglocentrism
Authors: Nguyễn Sarah , Kuo Rachel , Reddi Madhavi , Li Lan , Moran Rachel
Published: March 2022

Drawing on preliminary research about the spread of mis- and disinformation across Asian diasporic communities, we advocate for qualitative research methodologies that can better examine historical, transnational, multilingual, and intergenerational information networks. Using examples of case studies from Vietnam, Taiwan, China, and India, we discuss research themes and challenges including legacies of multiple imperialisms, nationalisms, and geopolitical tensions as root causes of mis- and disinformation; difficulties in data collection due to private and closed information networks, language translation and interpretation; and transnational dimensions of information infrastructures and media platforms. This commentary introduces key concepts driven by methodological approaches to better study diasporic information networks beyond the dominance of Anglocentrism in existing mis- and disinformation studies.
Ecumens - Regional-economic Environment of the World
Authors: Stehlík Jiří
Published: March 2022

The paper treats of the determination of the extent of individual parts of the ecumens, including agricultural areas, industrial and economic areas, forests, roads, built-in areas, parks, etc. The extent of the continental regional-economic environment of the world (without 3,6 mil. km2 of water surfaces) was estimated at the beginning of the Eighties at 78,7 mil. km2, and the extent of an applicable area (during 100 years) at 13,0 mil. km2, and a remaining unapplicable areas at 51,4 mil. km2.
Natural Resources and Physical Geography
Authors: Přibyl Jan
Published: March 2022

The presented contribution deals with a physico-geographical approach in the evaluation of natural resources and their rational utilization. It pays attention to the problems of regeneration and non-regeneration of natural resources, mostly minerals and other physico-geographical elements as soil, atmosphere (air), water. The natural resources are considered a basic possibility in the development of society, which is conditioned by their effective and rational utilization.
Ship design methods improving in the aspect of the technical requirement regulations for electrochemical protection
Authors: Душко В.Р. , Иванова О.А. , Крамарь В.А. , Родькина А.В.
Published: March 2022

С целью обоснования предпосылок к пересмотру технических требований по защитному потенциалу регламента систем катодной защиты для различных категорий судостроительных сталей выявлен вид электрохимической защиты, который имеет меньшую массу в нагрузке масс судна, выполнено технико-экономическое обоснование применения данного вида защиты, определено минимальное значение водоизмещения судов, для которых подтверждаются вышеуказанные гипотезы. Приведены преимущества применения разработанной модели катодной защиты морских судов и плавучих технических сооружений от локальных форм коррозионно-механических разрушений при потенциале незаряженной поверхности на ювенильной поверхности стали. Подготовлен регламент действий и перечень документов необходимых для совершенствования технических требований к защитному потенциалу систем катодной защиты для различных категорий судостроительных сталей с целью выявления неточностей значений защитного потенциала и его изменения, что даст положительный эффект при проектировании конструкций судов.

In order to substantiate the prerequisites for revising the technical requirements for the protective potential of the cathodic protection systems regulations for various categories of shipbuilding steels, a type of electrochemical protection has been identified that has a smaller mass in the load of the vessel masses, a feasibility study for the use of this protection type has been carried out, the minimum value of the ships displacement has been determined, for which the above hypotheses are confirmed. The advantages of using the cathodic protection developed model of marine vessels and floating technical structures from local forms of corrosion-mechanical damage at the potential of an uncharged surface on a juvenile steel surface are given. A regulation of actions and a list of documents necessary to improve the technical requirements for the protective potential of cathodic protection systems for various categories of shipbuilding steels have been prepared in order to identify inaccuracies in the values of the protective potential and change it, which will have a positive effect in the design of ship structures.
Regenerative Ensemble Submarine Engine of a Special Purpose Made by Sergei A. Bazilevsky
Authors: Половинкин В.Н. , Федулов С.В. , Титушкин С.И. , Соловьев Д.Н.
Published: March 2022

В начале Первой мировой войны впервые в боевых действиях на море в массовом порядке начали применяться подводные лодки, которые показали свою эффективность. Однако уже к концу Первой мировой войны, вследствие развития средств противолодочной обороны, введения эскортного сопровождения морских транспортных конвоев специализированными противолодочными кораблями эффективность использования подводных лодок значительно снизилась. Со всей очевидностью возникла необходимость их модернизации, и, в первую очередь, совершенствования подводного хода, то есть создания единого двигателя. К реализации данной идеи приступил выдающийся инженер-кораблестроитель Сергей Александрович Базилевский. Созданный им регенеративный двигатель особого назначения для подводных лодок («РЕДО») обеспечивал ход подводной лодки как в надводном, так и в подводном положении. В статье раскрыта сама идея создания единого двигателя, освещены его конструктивные особенности, показан процесс создания «РЕДО» и принципиальная схема. Однако реализация идеи создания «РЕДО» ограничилась лишь опытными наработками. А именно, оснащением данным двигателем подводной лодки ХII серии («М-92» / «Р-1»), которая накануне Великой Отечественной войны начала проходить испытания, но, к сожалению, так и не получила своего применения. С началом боевых действий все работы были прекращены.

At the beginning of the First World War, the use of submarines became very popular by military officers in marine military operations, as the use of submarines proved their efficiency. However, by the end of the First World War, due to the development of anti-submarine defense facilities, the introduction of escort of sea transport convoys by specialized anti-submarine ships, the effectiveness of submarines use decreased significantly. Obviously, there occurred a necessity to modernize them, and, firstly, to improve the underwater course, that is, to create a single engine. The outstanding shipbuilding engineer Sergei A. Bazilevsky began to implement this idea. The designed regenerative engine of a special purpose for submarines ensured the progress of a submarine both, on the surface, and in the submerged position.The paper reveals the very idea of creating the ensemble engine, highlights its design features, and shows the process of regenerative engine of a special purpose creation as well as its schematic diagram. However, the implementation of the regenerative engine of a special purpose idea creation was limited only to experimental developments. Namely, equipping of the submarine of the XII series («M-92» / «R-1») with this engine, which began to be tested just before the Great Patriotic War, but, unfortunately, did not receive its application. With the outbreak of combat operations, all the R&D work was stopped.
Knowledge Identifying Methods and Their Application to Create Intelligent Systems
Authors: Искандеров Ю.М.
Published: March 2022

Выявление знаний является одним из ключевых этапов создания интеллектуальных систем. Показано, что процедура выявления знаний заключается в определении и выборе соответствующих источников знаний, релевантных предметной области построения интеллектуальных систем. Выбираемые источники знаний должны удовлетворять требованиям определенных условий. В статье рассмотрены следующие методы выявления знаний: метод составления списка источников знаний; метод тестирования экспертов; метод ключевых слов и образов; квалиметрический метод определения источников знаний. Отмечены особенности реализации каждого метода. Использование изложенных методов выявления знаний, как в отдельности, так и в определенной комбинации, в итоге обеспечивает получение множества источников знаний, которые содержат релевантную информацию, необходимую для успешного решения задач. Показано, что методы выявления знаний различаются между собой по точности, достоверности, глубине проработки. Выбор и применение того или иного метода зависит от конкретной решаемой задачи и наличия соответствующих ресурсов организационно-технологического исполнения.

Knowledge identification is one of the key stages in the creation of intelligent systems. It is shown that the procedure for identifying knowledge consists in identifying and choosing the appropriate sources of knowledge that are relevant to the subject area of ​​building intelligent systems. The selected sources of knowledge must satisfy the requirements of certain conditions. The article discusses the following methods of identifying knowledge: the method of compiling a list of sources of knowledge; method of testing experts; method of keywords and key images; qualimetric method for determining the sources of knowledge. The features of the implementation of each method are noted. The use of the outlined methods for identifying knowledge, both individually and in a certain combination, ultimately provides a set of knowledge sources that contain relevant information necessary for the successful solution of problems. It is shown that the methods for revealing knowledge differ among themselves in accuracy, reliability, depth of elaboration. The choice and application of one method or another depends on the specific problem being solved and the availability of appropriate resources for organizational and technological performance.
Ship’s route planning in a limited area with speed changing requirement
Authors: Коренев А.С. , Хабаров С.П. , Шпекторов А.Г.
Published: March 2022

При маневрировании судов возникают задачи управления, которые требуют перехода судна в заданную точку с заданным путевым углом и скоростью хода. Для движения автономных судов в составе группы при этом необходимо формировать траекторию перехода. Кроме того, конечная точка необязательно является статической, ее географические координаты могут зависеть от движения другого судна. Для решения задачи формирования маршрута предложено использовать математический аппарат, связанный с анализом системы Дубинса, Рассмотрены варианты решения задачи построения траектории, оптимальной по времени перехода, с учетом снижения в конечной точке скорости движения до требуемого значения. Показано, что стратегии управления, определяющие искомые траектории с торможением, не всегда могут быть описаны простыми кривыми Дубинса. Предложен нелинейный закон управления, обеспечивающий торможение на криволинейном участке траектории, приведены расчеты траектории в соответствии с выбранным законом. Показано, что стратегия управления с торможением на конечном криволинейном участке траектории обеспечивает минимальное время перехода. Предложен алгоритм расчета траектории для случая подвижной конечной точки, который можно применять для планирования маршрута при движении судов в группе.

There are control tasks on the restricted water to relocate the ship to a given waypoint with the given speed and course. For an unmanned ship it is needed to calculate a full route from start waypoint to the end waypoint. Furthermore the end waypoint may not be given as a static point. In the convoy’s movement the end waypoint depends on another ship dynamic position. It’s suggested to plan the ship route on a basis of Dubins problem. The options of route planning with the slowdown to a given speed in a minimal time are considered. It is shown that control strategy which determine the route may not be described by the simple Dubins curves. The nonlinear control law is presented to obtain a slowdown on the curve, and the corresponding route calculation is described. It is illustrated that the control strategy with the speed slowing on the final curve to the end waypoint gives the minimal time route. In the case of the variable end waypoint the relevant route planning algorithm is suggested. This algorithm allows route planning with respect to convoy’s movement.
Risk Assessment of Environmental Consequences from Transport Accidents with Dry Cargo Vessels on the Example of the Volga Basin
Authors: Домнина О.Л.
Published: March 2022

Транспортная и экологическая безопасность напрямую связана с системой реагирования, для отлаженной работы которой необходима система прогнозирования экологических рисков. Существующие в настоящее время модели оценки риска в основном связаны с оценкой вероятности транспортных происшествий. Кроме того, большинство моделей рассматривают экологические риски только от транспортных происшествий с нефтеналивными судами и в основном на море. Данная работа является продолжением работ автора в направлении оценки экологического риска от транспортных происшествий на внутренних водных путях. Предложенная ранее методика оценки апробируется в данной работе на данных о транспортных происшествиях в Волжском бассейне. При этом объектом анализа стали транспортные происшествия с сухогрузными судами. Среди источников убытков были рассмотрены: сброс грузов в результате повреждения корпуса судна, сброс нефтесодержащих вод, сточных вод, мусора, разлив нефти из расходных цистерн сухогрузных судов при аварии, а также убытки, связанные с затоплением судов. В результате выполненных исследований была создана классификация участков концентрации транспортных происшествий по уровню возможного экологического риска.

Transport and environmental safety is directly related to the response system, for the smooth operation of which a system for predicting environmental risks is needed. Currently existing risk assessment models are mainly related to the assessment of the probability of traffic accidents. In addition, most models consider environmental risks only from transport accidents with oil tankers and mainly at sea. This work is a continuation of the author's work in the direction of assessing the environmental risk from traffic accidents on inland waterways. The previously proposed assessment methodology is tested in this paper on data on traffic accidents in the Volga basin. At the same time, transport accidents with dry cargo ships became the object of analysis. Among the sources of losses were considered: the discharge of cargo as a result of damage to the ship's hull, the discharge of oily water, sewage, debris, oil spills from service tanks of dry cargo ships in the event of an accident, as well as losses associated with the flooding of ships. As a result of the performed studies, a classification of areas of concentration of traffic accidents was created according to the level of possible environmental risk.
Systematization of algorithms for spectral processing of marine images
Authors: Селиверстов Я.А. , Пышкина Н.Ю. , Фахми Ш.С. , Хасан Я.А.
Published: March 2022

Сжатие изображений в настоящее время имеет важное значение для таких приложений, как передача и хранение информации при проектировании морских систем наблюдения и управления. Анализируются процессы спектрального сжатия изображений и типы избыточности информации. В этой статье рассмотрена проблема систематизации и выбора оптимального алгоритма сжатия изображений в зависимости от заданных требований по качеству передаваемой видеоинформации и пропускной способности канала связи. Предложена систематизация алгоритмов сжатия и восстановления морских изображений на основе спектральных преобразований исходного сигнала из пространственной области в частотную область: дискретное вейвлет преобразование, дискретное косинусное преобразование и пирамидально-рекурсивное преобразование. Разработана методика выбора эффективного алгоритма сжатия с учетом статистических характеристик сигнала изображений. Рассмотрены и показаны преимущества и недостатки различных алгоритмов сжатия морских изображений в оттенках серого и приведено экспериментальное сравнение алгоритмов сжатия различных морских сюжетов формата 256×256 и 512×512 и получены информационные показатели качества систем обработки видеоинформации.

The Image compression is currently essential for applications such as transmission and storage in the design of marine surveillance and control systems. The processes of spectral image compression and types of information redundancy are analyzed. This article discusses the problem of systematization and selection of the optimal image compression algorithm depending on the specified requirements for the quality of transmitted video information and the bandwidth of the communication channel. A systematization of algorithms for compression and restoration of marine images based on spectral transformations of the original signal from the spatial domain to the frequency domain is proposed: discrete wavelet transform, discrete cosine transform and pyramidal-recursive transform. A method for selecting an effective compression algorithm is developed taking into account the statistical characteristics of the image signal. The advantages and disadvantages of various algorithms for compressing marine images in shades of gray are considered and shown, and an experimental comparison of compression algorithms for various marine scenes in 256×256 and 512×512 formats is given, and information quality indicators of video information processing systems are obtained.
Flood network protocols and project RACUN results
Authors: Астапкович А.М. , Кожемякин И.В. , Шарафутдинова Т.К. , Шустов А.С.
Published: March 2022

В силу нелинейности гидроакустического канала актуальными являются задачи сбора экспериментальных данных, обеспечивающих возможность разработки моделей канала, тестирования и отбора перспективных протокольных решений. Статья представляет аналитический обзор результатов проекта RACUN (Robust Acoustic Communications in Underwater Net-works) и предшествующих теоретических работ по разработке потоковых протоколов. В рамках этого проекта разработаны и в натурных условиях исследованы два потоковых протокола обмена данных Dflood и GUWMANET. В работе выполнен комплексный анализ, как результатов проекта, так и предшествующих теоретических работ по разработке потоковых протоколов. Выделены перспективные программно-аппаратные решения. По результатам анализа поставлены задачи разработки отечественного SDMмодема и создания единой базы экспериментальных данных.

Underwater acoustic networks have used nonlinear channel to transmit data so the sea trials are necessary part of the developing process. The experimental results used as base for realistic simulation model for next stage of R&D. This paper presents the analytical review of the project RACUN results also as the set of previous publications devoted to flooding protocols Dflood and GUWMANET. Protocols implement the multi-hop approach to achieve a higher maximum transmission range for a multilayer net topology. Most important features and limitations of the protocols have described in details. Hardware, channel simulation model and the used project methodology for a protocol development has described in brief. Architecture of universal SDM (Software Defined Modem) used as hardware solution has described.
Analysis of Variations in Tub Cover Tarpaulin Shape Against Airflow Patterns and Pressure Distribution Characteristics on Pickup Trucks with the Addition of Roof Deflector
Authors: Mulyawan Aditya , Anak Agung Adhi Suryawan  , Ainul Ghurri
Published: March 2022

This study aims to analyze the airflow pattern and pressure distribution characteristics of a pickup truck with a roof deflector added. with an angle of curvature of 20° and is accompanied by the installation of a tarpaulin cover on the body of the pickup truck. The method used in this study is an experimental method by testing 6 specimens, namely a pickup truck added with a roof deflector without using a tarp or baseline, a pickup truck added with a roof deflector fitted with a tonneau cover tarp (type A), aerocap tarpaulin with an angle of 0° (type B). and 12° (type C), and cincing type tarpaulin with a foot angle of 15° (type D) and 30° (type E) in a wind tunnel with a speed of 5.47 m/s. The more aerodynamic the use of tarpaulin, the more the blockage mass will be reduced so that it can produce a streamlined flow pattern. The results showed that the pickup truck added with a roof deflector with a 15° cincing tarp had a stable Cp value fluctuation at the rear of the pickup truck, while the pickup truck added a roof deflector with a 12° aerocap tarp. as well as produce aerodynamic flow thereby reducing the occurrence of blockage mass and obstacles.