bluuebunny/crossref_metadata_2025 huggingface dataset:
EFEK MODERASI KEBIJAKAN DIVIDEN PADA PENGARUH KINERJA KEUANGAN TERHADAP HARGA SAHAM PERUSAHAAN INDEKS LQ45 YANG TERDAFTAR DI BURSA EFEK INDONESIA PERIODE 2018-2022
Authors: Rahmayanti Kanita Amelia , Wardani Laila , Burhanudin Burhanudin
Published: April 2024

This research aims to test and analyze the moderating effect of dividend policy on the influence of the Current Ratio (CR), Debt to Equity Ratio (DER), and Return On Equity (ROE) on the share prices of LQ45 Index companies listed on the Indonesian Stock Exchange for the 2018-2022 period. This type of research is causal associative research (cause and effect) with a data collection method, namely a sample survey. Sampling in this study used a purposive sampling technique with certain criteria to obtain a sample of 15 companies with a research period from 2018-2022. The data analysis method used to solve the problems in this research is panel data regression analysis with the help of the EViews 12 program. The results of the research show that Current Ratio (CR) has a positive and not significant effect on stock prices, Debt to Equity Ratio (DER) has a negative and not significant effect on stock prices, Return On Equity (ROE) has a positive and significant effect on stock prices, Dividend Payout Ratio (DPR) is unable to moderate the influence of Current Ratio (CR) on stock prices, Dividend Payout Ratio (DPR) is able to moderate the influence of Debt on Equity Ratio (DER) on share prices, and Dividend Payout Ratio (DPR) are unable to moderate the influence of Return On Equity (ROE) on share prices.
Diversity of Grasshopper (Hexapoda: Orthoptera) in the Conservation Area of Kerandangan Natur Park, Senggigi, West Lombok
Authors: Ilhamdi Moh. Liwa , Syazali Muhammad , Rizki Baiq Febrian Sari
Published: April 2024

The Kerandangan TWA conservation area has high biodiversity, but much of it is unknown, including grasshoppers. This research aims to analyze the diversity of grasshoppers in the area. Grasshopper samples were collected on two transects determined purposively. This collection was carried out over two months, namely October to November 2022. Data on species and numbers were analyzed descriptively. This analysis includes abundance, richness index, diversity index, and species evenness index. Our findings show that there are 8 species of grasshoppers from the families Acrididae, Pyrgomorphidae, Catantopidae, and Tettigoniidae. The most abundant species was Stenocatantops splendens, whose proportion was 66.67%. The species richness, diversity, and evenness indexes were 2.06, 1.27, and 0.61, respectively. This shows that grasshopper biodiversity in Kerandangan TWA is relatively low. However, it must be conserved because of its essential role in maintaining regional ecological processes.
Web Scraping Scientific Repositories: Springer and Nature for University of Basrah
Authors: Taufeeq Al-Madhhachi Zahraa , A. Mahmood Salma
Published: April 2024

This study explores the field of scientific data extraction using online scraping techniques, with a specific focus on the Springer and Nature archives within the University of Basrah's setting. This study aims to explicate the theoretical underpinnings of web scraping, emphasizing its importance in the acquisition of structured data from online sources. This study explores the many issues presented by dynamic content, captchas, and IP blocking and proposes novel solutions for each of these obstacles. The university's research objectives were supported by a rich dataset that was carefully constructed through a painstaking approach encompassing data collection, preparation techniques. The results highlight the effectiveness of web scraping, significant influence of preprocessing. This study not only enhances the existing body of academic research methodology but also advances the University of Basrah's pursuit of data-driven and influential scholarly pursuits.
Adaptive Hybrid Learning for Websites Vulnerability prediction
Authors: Hossain Hadi Mohannad , Hashim Al-Saedi Karim
Published: April 2024

This study presents a comprehensive exploration of machine learning (ML) techniques for predicting vulnerabilities in websites, which is a critical aspect of modern cybersecurity. With the advancement of digital threats and the complexity of cyber-attacks, conventional security strategies have become increasingly inadequate. By employing machine learning algorithms such as Random Forest and Gradient Boosting, this study formulates models adept at identifying potential vulnerabilities within the website code. This approach responds to the escalating demand for enhanced security measures, in the face of increasingly sophisticated digital threats. By integrating anomaly detection findings through the Isolation Forest algorithm, this study enriches the training dataset, enabling models to adapt to both known and emerging vulnerability patterns

The Gradient Boosting model slightly outperformed the Random Forest model in terms of overall accuracy, achieving a precision of 97% for the non-vulnerability class, and the vulnerability class had a precision of 90%, leading to an overall accuracy of 96.25%., which is attributed to its ability to iteratively learn from previous errors, thereby enhancing its adaptability to new vulnerabilities. This study underscores the significant potential of ML to enhance cybersecurity measures against website vulnerabilities.
Fire Detection by using DenseNet 201 algorithm and Surveillance Cameras images
Authors: Shaker Muhammad Satar , M. Alrikabi Jamal
Published: April 2024

Early warning of fires is very important to reduce loss of life and property. It is a technology that has become one of the most important design elements for smart cities in the future. Most current solutions rely on temperature and smoke sensors, which have limited detection ranges and scenarios and long response times. These are used inside some buildings and cannot be used in the external environment, as they are not a preferred solution. In addition to the above, sensor systems are costly because of the hardware and installation requirements, and they require regular upkeep. With the development of artificial intelligence and learning machines, fire detection has been used based on deep learning. Widely. Therefore, a solution to computer vision technology is proposed, which uses a convolutional neural network (CNN), Reducing false alarms. The use of computer vision techniques is certainly better than sensor-based systems, by utilizing security camera footage at specific periods to detect a fire when it breaks out. Our system achieved excellent results with an average predictive accuracy of 98% on the dataset. This accuracy and low cost make it a good alternative to systems that use sensors. The contribution of this study is to improve the detection process by conducting a classification process instead of detecting an object (fire), which requires complex mathematical calculations, large resources, and a long time.
Confirmation of correct placement of nasogastric / orogastric tube on Point of Care Ultrasound (POCUS) in pediatric critical care unit patients.
Authors: Said Jamal Shah  , Rukhsar Hussain  , Fatima Hemani  , Sadiq Mirza  , Abdul Rahim  , Humaira Jurair
Published: April 2024

Objective: To determine frequency of correct placement of nasogastric /orogastric tube on POCUS in pediatric critical care unit patients. Study Design: Descriptive cross-sectional. Setting: High Dependency Unit and Pediatric Intensive Care Unit, Indus Hospital Health Network, Karachi, Pakistan. Period: November 2022 to April 2023. Methods: Patients of age 1 months to 15 years of age requiring NGT placement were enrolled into the study. Patients with nasal surgery, fracture of skull base/ face, bleeding, coagulopathy, esophageal varices, stricture, upper gastrointestinal surgery were excluded from this study. NG tube was passed by principal investigator after evaluating correct size and length measurement. After passing the NG tube, gastric aspiration and gastric auscultation were also performed by principal investigator. Results: In this study we enrolled 147children with median age of patient was 3 (IQR=0.75-07) years. Majority of patient in our study were male (63.9%). Gastric aspiration and gastric auscultation was seen in all of the study patients. Based on POCUS, frequency of correct placement of nasogastric tube in children admitted in PICU was 83%. Sensitivity of POCUS against gastric aspiration and gastric auscultation was 82.5% with 100% positive predictive value (PPV). Specificity was unable compute as there was no negative finding in reference standard and hence there was also no false positive case. Conclusion: POCUS seems to be helpful and could help with the placement of NGT in paediatric clinical settings. Nevertheless, NGT envision in the stomach was difficult, and if the operator is not skilled or there is abdominal distention, it may go unnoticed.
EXPERIÊNCIAS DO ENSINAR: a formação docente em Educação Física no Programa de Residência Pedagógica
Authors: Costa Fábio Soares da
Published: April 2024

Este é um livro que articula as aulas de Educação Física Escolar como prática intencional articulada entre docente orientador, professoras preceptoras e residentes pedagógicos, em sua relação com o fazer Educação Física nas escolas a partir de uma práxis reflexiva pode ser percebida nos relatos de experiência apresentados ao longo do livro. Uma obra que apresenta como núcleo narrativo a cotidianidade das atividades de planejamento, prática pedagógica e avaliação das aulas de Educação Física desenvolvidas no âmbito do Programa de Residência Pedagógica da UFPI.
O ofício de ser professor de Educação Física é uma construção edificada nos diferentes saberes pessoais e profissionais e um olhar atento à realidade escolar e um exercício reflexivo do fazer pedagógico marcam a constituição desses escritos sobre as EXPERIÊNCIAS DO ENSINAR.
ALFABETIZAÇÃO EM CLASSES MULTISSERIADAS EM ESCOLA DO/NO CAMPO: ENTRELUGARES DA LEITURA E DA ESCRITA
Authors: Silva Júnior Dilmar Rodrigues da
Published: April 2024

É com grande satisfação que apresentamos o livro
“ALFABETIZAÇÃO EM CLASSES MULTISSERIADAS EM
ESCOLA DO/NO CAMPO: ENTRELUGARES DA LEITURA
E DA ESCRITA”, uma obra inovadora do respeitado Professor
e Pesquisador, Mestre em Educação, Dilmar Rodrigues da
Silva Júnior.
Este livro é uma importante referência na discussão sobre
a alfabetização de crianças em classes multisseriadas em escolas
do campo. A obra traz à tona uma questão-problema crucial:
“Quais práticas de leitura e de escrita são desenvolvidas no
processo de alfabetização de crianças, em classes multisseriadas,
na educação do campo?”
O autor, com sua vasta experiência e conhecimento, conduz
o leitor através de uma jornada de descoberta e compreensão
das complexidades e nuances da alfabetização em ambientes
multisseriados. Ele desvenda as práticas de leitura e escrita
que são desenvolvidas nesses contextos, proporcionando uma
visão profunda e esclarecedora.
Debates sobre educação no Brasil: olhares interdisciplinares vol. 4
Authors: Mateus Yuri Givago Alhadef Sampaio , Mateus Natasha Nickolly Alhadef Sampaio
Published: April 2024

A obra Debates sobre educação no Brasil: olhares interdisciplinares volume 4 teve por finalidade dar visibilidade para o debate em torno da educação brasileira sob diversos olhares, isto é, como cada área do conhecimento (Ciências Humanas, Ciências da Natureza, Linguagens, Códigos, Matemática e suas Tecnologias) vem sendo aplicada no âmbito escolar, desde a educação básica ao ensino superior. Buscou-se discutir os entraves que historicamente assolam a educação, bem como os novos problemas que desafiam os educadores/as e educandos/as no cotidiano escolar.
Ensino de história no tempo presente: a importância da memória para a fiação do passado
Authors: Silva Fabio Henrique Monteiro
Published: April 2024

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A Nova História e as Novas Linguagens: possíveis usos didáticos da série Andor (Disney, 2022) sobre o ensino de história da ditadura civil-militar brasileira
Authors: Alves Herik Eduardo Sousa
Published: April 2024

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A dialética no processo educacional: o que se reproduz e o que se produz na educação atualmente por meio do embate entre as teorias Tradicional e Crítica
Authors: Menezes Leandro Freitas , Menezes Carla Valéria da Silva Freitas
Published: April 2024

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ANUÁRIO ESTATÍSTICO DE ACIDENTES DE ORIGEM ELÉTRICA 2024 - Ano base 2023
Authors: Martinho Edson , Souza Danilo Ferreira de , Maionchi Daniela de Oliveira , Morita Lia Hanna Martins , Martinho Meire Biudes , Martins Junior Walter Aguiar
Published: April 2024

O Anuário Estatístico de Acidentes de Origem Elétrica 2024, focando nos dados de 2023, destaca a persistência e gravidade dos acidentes elétricos no Brasil, revelando tanto avanços quanto desafios na prevenção de tais ocorrências. Com dados meticulosamente coletados e analisados pela Associação Brasileira de Conscientização para os Perigos da Eletricidade (ABRACOPEL), o documento evidencia um cenário complexo de riscos associados ao uso e manuseio da eletricidade.

Um dos pontos críticos abordados é a elevada incidência de acidentes elétricos relacionados a choques e incêndios, causando significativas fatalidades e lesões. Os choques elétricos, em particular, são responsáveis por uma vasta maioria dos acidentes, com profissionais da construção civil e eletricistas entre os mais afetados. A natureza desses acidentes varia, envolvendo desde o contato direto com instalações elétricas até interações acidentais com a rede de distribuição aérea.

A ABRACOPEL aponta para a necessidade de melhorias na segurança das instalações elétricas residenciais e comerciais, sublinhando a importância do uso de dispositivos de proteção, como o Dispositivo Diferencial Residual (DR), e de práticas seguras de trabalho. Além disso, destaca a relevância de uma abordagem proativa para a educação e conscientização sobre os riscos elétricos, visando reduzir o número de acidentes e mortes.

O anuário também revela uma distribuição geográfica diversificada dos acidentes, com regiões específicas apresentando taxas mais elevadas de ocorrências. Esse fato sinaliza a necessidade de estratégias regionalizadas e adaptadas às particularidades locais para combater efetivamente os riscos elétricos.

Além dos dados estatísticos, a ABRACOPEL reforça sua missão de promover uma cultura de segurança elétrica mais forte através de parcerias estratégicas, campanhas educativas e a divulgação de boas práticas. O documento enfatiza que, apesar dos esforços contínuos e do progresso em algumas áreas, ainda há um longo caminho a percorrer para garantir um ambiente seguro para todos os brasileiros no que diz respeito à eletricidade.

Por fim, o anuário não apenas serve como um registro dos acidentes ocorridos mas também como uma ferramenta vital para informar políticas públicas, iniciativas de segurança e práticas de trabalho seguras, direcionando esforços para a prevenção de futuros acidentes elétricos.
A História de Aladim e a Lâmpada Maravilhosa
Authors: Desconhecido Autor
Published: April 2024

Versão bilíngue Português/Libras em HTML5 para download no computador.
João e Maria
Authors: Grimm Irmãos
Published: April 2024

Versão bilíngue Português/Libras em HTML5 para download no computador.

João e Maria, conto infantil registrado pelos irmãos Jacob e Wilhelm Grimm, conta a historia de duas crianças de uma família muito pobre, que foram abandonadas pelos pais em uma floresta.
O Soldadinho de Chumbo
Authors: Andersen Hans Christian
Published: April 2024

Versão bilíngue Português/Libras em HTML5 para download no computador.
Pinóquio
Authors: Collodi Carlo
Published: April 2024

Versão bilíngue Português/Libras em HTML5 para download no computador.

A história de Pinóquio é difícil de esquecer por muitas razões. Gepeto, um carpinteiro, queria muito ser pai e constrói um menino em madeira. O carpinteiro dá-lhe o nome de Pinóquio.
Curso de Formação em Educação Ambiental e Sustentabilidade
Authors: Rodrigues Tayronne de Almeida , Duarte Francisco Ricardo
Published: April 2024

O Curso de Formação e Capacitação em Educação Ambiental e Sustentabilidade, apresentado como Produto Técnico e Tecnológico e parte da Tese de doutorado de Tayronne de Almeida Rodrigues, propõe um programa inovador voltado para a formação e capacitação de grupos pedagógicos em Educação Ambiental e Sustentabilidade (EAS). Esta iniciativa busca aprimorar as práticas docentes, especialmente no Ensino Médio, com foco na aprendizagem significativa em EAS, refletindo uma necessidade de reconhecimento dos desafios e obstáculos que afetam a eficácia do processo educacional nesta área. O curso é concebido para gestores e professores, sendo fundamentado na interdisciplinaridade e na aplicação de metodologias ativas, visando à construção de um conhecimento aplicável que responda às demandas contemporâneas por uma convivência sustentável. Com uma carga horária de 60 horas, o programa é estruturado em cinco unidades que abordam desde a introdução ao conceito e gestão de EAS até a avaliação e a participação comunitária, enfatizando a integração da Educação Ambiental e Sustentabilidade no currículo escolar, no Projeto Político Pedagógico e nas práticas escolares cotidianas. A iniciativa reflete uma abordagem qualitativa para a reestruturação pedagógica, centrada na revisão e adaptação dos documentos norteadores da prática educativa, como o Projeto Político Pedagógico e o Regimento Interno, com o objetivo de incorporar e adaptar os princípios de EAS de maneira eficaz e inovadora nas diversas áreas do conhecimento. O curso pretende não apenas apresentar um conteúdo programático, mas, sobretudo, mobilizar a comunidade escolar para a implementação de uma educação voltada para a sustentabilidade ambiental, transformando-a em um pilar central da educação contemporânea.
Vigotski: uma poesia biográfica
Authors: SOUZA ÁGATA NELZA GOMES DE
Published: April 2024

Poesia com a biografia de Lev Semionovitch Vigotski (1896-1934). Texto desenvolvido em março de 2024, a partir de uma necessidade de expressão poética da autora, com base no texto Vygotsky: el hombre y su teoria (Wertsch, 1988).
Management of Non-contact Injuries, Nonspecific Chronic Pain, and Prevention via Sensory Conflicts Detection: Vertical Heterophoria as a Landmark Indicator
Authors: Eric Matheron
Published: April 2024

Sensory and sensorimotor conflicts can lead to sensory and motor efficiency disturbances, such as pain and less efficient motor control. Vertical heterophoria (VH) and vertical orthophoria (VO) are respectively the latent vertical misalignment of the eyes when the retinal images are dissociated, or not. Mild VH (< 0.57°) could indicate the presence of a conflict resulting from eye refraction problems and/or a disruption of the somaesthetic cues. Canceling the conflict(s) can immediately restore VO, making it possible to observe an improvement in the mobility of spinal and peripheral joints, the performance in the motor and balance tests after initial alternation, and a decrease in pain. The Maddox Rod Test was used to detect mild VH but doesn’t determine the sensory conflict origin. The aim of this retrospective study is to show its use as a landmark in which sensory afferent conflict could induce symptoms (i.e. pain; decreased range of motion; nonoptimal postural and motor control) and how to manage it, analyzing data from 525 subjects. The clinical process is intended to inhibit or neutralize afferent signals involved in the sensorimotor loops required by the central nervous system in motor control in order to spot the locus of conflict (stomatognathic system, pelvis, plantar afferences, piercings (body art) or/and eye refraction problems). This investigation protocol based on VH detection provides trackers for the therapeutic intervention in the management of nonspecific chronic pain, non-contact injuries, and prevention, and a key role for practitioners in the multidisciplinary management required for patients/athletes, in the world of work/health.
Enfoques disponibles para la inclusión de textos literarios en el aula de inglés como segunda
Authors: Macías Borrego Manuel
Published: April 2024

Este trabajo pretende describir los enfoques de enseñanza de la literatura aplicados por los profesores en el aula de ESL. Por otro lado, busca profundizar en los retos que plantea la aplicación de enfoques adecuados de enseñanza de la literatura en el aula de inglés. Proponemos una revisión sistemática mediante el análisis temático de veintidós trabajos científicos publicados entre 2003 y 2022 en revistas especializadas. Para ello, se aplican criterios específicos de inclusión y exclusión de muestras durante el proceso de selección de la búsqueda de artículos. Durante la selección de la muestra se utilizaron palabras clave como estrategias de enseñanza de ESL, enfoques de enseñanza de literatura, retos en la enseñanza de literatura, enseñanza y aprendizaje de ESL y pedagogía de segundas lenguas con el objetivo de alcanzar muestras y hallazgos significativos en torno a los enfoques disponibles y retos a los que se enfrentan los docentes.
Study on Electrical Characteristics and Formation Mechanism of Micro-Ion Capacitor in Shale Pore and Fracture Structure
Authors:   Southwest Petroleum University, Liu Hongqi , Liao Haibo ,   Southwest Petroleum University, Xiao Zhanshan ,   China National Logging Corporation, Li Shanjun ,   Geoprance LLC, Ran Liquan ,   Southwest Petroleum University, Chen Dong ,   Chuanqing Drilling Engineering Co
Published: April 2024

Due to the micro/nanoscale and intricate pore structure, poor connectivity, complex pathways, the presence of microfractures, and the coexistence of organic and inorganic pores, shale and other tight reservoirs exhibit increasingly complex conductive characteristics. This paper mainly studied the electrical properties of shale based on experimental test data, including scanning electron microscope (SEM) thin-section and microtomography CT (μ-CT) images, and analyzed the shale pore type, pore structure characteristics, and development of fracture. Then, the distribution of pyrite, content, and graphitization of organics and their influence on the electrical properties are discussed. Furthermore, the double electrical layer and zeta potential in the shale zone were discussed in depth. The results revealed that, within the content of pyrite, organics, and its graphitization, the vitrinite maturity are inversely proportional to shale resistivity. It was also found that in the presence of an external electromagnetic field, the fluid in shale pores is subjected to the combined strength of pore pressure and external field potential difference. Thus, its response equation should be an improved Navier-Stokes equation, which considers pore pressure, zeta potential, and Coulomb force. When shale is subjected to an external electromagnetic field, due to the complex pores structure and organic and inorganic minerals, it will represent more of a dielectric-like property than electricity. So, it will form special microscopic ionic capacitors, which are different from common plate capacitors. There are three special kinds of microscopic ionic capacitors, they are (I) the intergranular pore microscopic ionic capacitor model, (II) the particle with isolated pore microscopic ionic capacitor model, and (III) the pyrite or graphite or other organics microscopic ionic capacitor model. Finally, the characteristics of microscopic ion capacitors are summarized: irregular polar area and varying distance between poles, varying charges with time, and salinity of the formation water.
Core Analysis Using Nuclear Magnetic Resonance
Authors:   China University of Petroleum, Zhang Yan , Song Yiqiao ,   Harvard University, Luo Sihui ,   China University of Petroleum, Lin Tingting ,   Jilin Unversity, Liu Huabing ,   Beijing Limecho Technology
Published: April 2024

Core analysis is critical for oil and gas exploration and recovery. Nuclear magnetic resonance (NMR) has been widely applied to the petroleum industry for many years, and NMR core analysis plays an important role in supporting borehole NMR formation evaluation and understanding the mechanisms of petrophysics and petrochemistry. It’s unfortunate, however, that there has been a lack of commented descriptions of the basic procedures for NMR rock core analysis in the literature, which has led to issues of comparability and repeatability of NMR measurements between different laboratories. In this paper, we present a brief guideline for NMR rock core analysis of conventional T2, T1, T1-T2, and D-T2 measurements. As an established procedure in daily laboratory work, NMR core analysis includes three sophisticated steps: rock sample preparation, an NMR experiment, and data analysis. The acquisition and saturation of rock samples are described, and corresponding solutions are also considered. Detailed NMR experimental measurements, data setting, and calibration are addressed. Laplace inversion for different NMR experiments and models for estimation of porosity, irreducible water, permeability, pore structure, and oil saturation are included. The aim of this paper is to try to standardize general NMR experiments for rock core analysis.
Intelligent Identiﬁcation and Quantitative Characterization of Pores in Shale SEM Images Based on Pore-Net Deep-Learning Network Model
Authors:   Chongqing Three Gorges University, Tang Xin ,   Chongqing Three Gorges University,   Chongqing Three Gorges Reservoir Bank Slope and Engineering Structure Disaster Prevention and Control Engineering Technology Research Center, He Ruiyu ,   Chongqing Three Gorges University, Wang Biao ,   Chongqing Three Gorges University, Zhou Yuerong ,   Chongqing Three Gorges University, Yin Hong ,   Chongqing Three Gorges University
Published: April 2024

Among the various shale reservoir evaluation methods, the scanning electron microscope (SEM) image method is widely used. Its image can intuitively reflect the development stage of a shale reservoir and is often used for the qualitative characterization of shale pores. However, manual image processing is inefficient and cannot quantitatively characterize pores. The semantic segmentation method of deep learning greatly improves the efficiency of image analysis and can calculate the face rate of shale SEM images to achieve quantitative characterization. In this paper, the high-maturity shale of the Longmaxi Formation in the Changning area of Yibin City, Sichuan Province, and the low-maturity shale of Beibu Gulf Basin in China are studied. Based on the Pore-net network model, the intelligent identification and quantitative characterization of pores in shale SEM images are realized. The pore-net model is improved from the U-net deep-learning network model, which improves the ability of the network model to identify pores. The results show that the pore-net model performs better than the U-net model, FCN model, DeepLab V3 + model, and traditional binarization method. The problem of low accuracy of the traditional pore identification method is solved. The porosity of SEM images of high-maturity shale calculated by the pore-net network model is between 12 and 19% deviation from the experimental data. The calculated porosity of the SEM image of the low-maturity shale has a large deviation from the experimental data, which is between 14 and 47%. Compared with the porosity results calculated by other methods, the results calculated by pore-net are closer to the true value, which proves that the porosity calculated by the pore-net network model is reliable. The deep-learning semantic image segmentation method is suitable for pore recognition of shale SEM images. The fully convolutional neural network model is used to train the manually labeled shale SEM images, which can realize the intelligent recognition and quantitative characterization of the pores in the shale SEM images. It provides a certain reference value for the evaluation of shale oil and gas reservoirs and the study of other porous materials.
Automatic Depth Shifting by Identifying and Matching Events on Well Logs Chicheng Xu
Authors:   Aramco Americas, Xu Chicheng , Fu Lei ,   Aramco Americas, Lin Tao ,   Aramco Americas, Li Weichang ,   Aramco Americas, Alzayer Yaser ,   Saudi Aramco, Al Ibrahim Zainab ,   Saudi Aramco
Published: April 2024

Depth matching or depth shifting between well logs acquired from different runs or between core scans and well logs is a critical data quality control task to ensure subsequent accurate petrophysical interpretation and modeling. Conventional depth-shifting workflow heavily relies on human expertise to manually match a series of peaks and troughs between log curves, which is often subjective, error-prone, and cumbersome. Therefore, it is necessary to establish an automatic depth-shifting workflow to perform this routine yet important task accurately in a consistent and efficient manner. We implemented an automatic workflow to emulate human expertise to identify important “events” such as peaks, troughs, and bed boundaries on log curves and then intelligently match the identified series of events between log curves with local maximum correlation criteria to generate a depth shift table. We applied the automatic workflow in a field case to shift the well log and core gamma ray and delivered a depth shift table comparable to manual depth matching. The final shifted log achieved a significantly enhanced correlation with the reference log. The events identifying and matching method presents a white-box solution that still follows the conventional petrophysical wisdom and allows more user interaction to fine-tune the results. The users have full control of the parameters for optimal results.
Financial Distress in European Vineyards and Olive Groves
Authors: Santiago Céu Mário , Medeiros Gaspar Raquel
Published: April 2024

This study focuses on the prediction of financial distress of agricultural firms operating in the vineyards and olive crops sectors in Mediterranean countries, specifically in Portugal, Spain, and Italy, which are crucial for the production of these crops. The sample size of the study is 5,057 firms. Twelve models are presented, estimated from subsamples of combinations between countries and crops. Logistic regression is used for the estimation of these models. The accuracy of the models is evaluated, considering the importance of misclassification costs. Additionally, the areas under the ROC curves are calculated and compared in a dynamic of possible combinations between crops and countries. The study concludes that there are differences between the two sectors, as well as across countries, and suggests that dedicated models for each country or crop may improve the the models’ accuracy.
Durability of cutting tools with deposited ceramic–metallic coatings (Ti,Al)N – Cu and (Ti,Al)N – Ni when turning and milling steels
Authors:   National University of Science and Technology MISIS, Belov D. S. , Klauch D. N. ,   RF State Research Centre JSC “RPA “CNIITMASH”, Blinkov I. V. ,   National University of Science and Technology MISIS, Laptev A. I. ,   National University of Science and Technology MISIS, Demirov A. P. ,   National University of Science and Technology MISIS
Published: April 2024

The study shows the results of comparative resistance tests of a carbide cutting tool with (Ti,Al)N – Cu and (Ti,Al)N – Ni nanostructured arc-PVD coatings deposited on its working surfaces under conditions of continuous and interrupted cutting of 13Mn6 (09G2S) and 10Cr15Ni9Si3Nb1-SH (EP302-Sh) steels, respectively. Under milling conditions of 10Cr15Ni9Si3Nb1-SH steel, when using WC – Co (6 wt.% Co) inserts with (Ti,Al)N – Cu and (Ti,Al)N – Ni coatings, tool life increases by 3.1 and 1.7 times, respectively. When turning steel 13Mn6 using WC – Co inserts coated with (Ti,Al)N – Cu and (Ti,Al)N – Ni, tool life increases by 7.6 and 10.8 times, respectively, and cutting forces Fz, Fx, Fy decrease nearly by 20 %. This effect is determined by the presence of a nanostructure in the formed coatings, the presence of a highly hard ceramic component and ductile metal, which determine their hardness (more than 35 GPa) and fracture toughness (the relative work of plastic deformation during indentation is more than 60 %), increased tribological characteristics (friction coefficient ~ 0.5 according to comparison with uncoated carbide ~ 0.7). The study noted an increased resistance of (Ti,Al)N – Ni coatings on a hard alloy to continuous cutting of steel, which is determined by their high hardness and lower friction coefficient compared to (Ti,Al)N – Cu coatings, which are characterized by better performance in interrupted cutting operations, where the determining value of resistance is the fracture toughness.
Chlamydia muridarum Associated Pulmonary and Urogenital Disease and Pathology in a Colony of Enzootically Infected Il12rb2 Deficient and Stat1 Knockout Mice
Authors: Mishkin Noah , Miranda Ileana C , Carrasco Sebastian E , Cheleuitte-Nieves Christopher , Ricart Arbona Rodolfo J , Wingert Claire , Sun Joseph C , Lipman Neil S
Published: April 2024

Chlamydia muridarum (Cm), an intracellular bacterium of historical importance, was recently rediscovered as moderately prevalent in research mouse colonies. Cm was first reported as a causative agent of severe pneumonia in mice about 80 y ago, and while it has been used experimentally to model Chlamydia trachomatis infection of humans, there have been no further reports of clinical disease associated with natural infection. We observed clinical disease and pathology in 2 genetically engineered mouse (GEM) strains, Il12rb2KO and STAT1KO, with impaired interferon-γ signaling and Th1 CD4+ T cell responses in a colony of various GEM strains known to be colonized with and shedding Cm. Clinical signs included poor condition, hunched posture, and poor fecundity. Histopathology revealed disseminated Cm with lesions in pulmonary, gastrointestinal, and urogenital tissues. The presence of Cm was confirmed using both immunohistochemistry for Cm major outer membrane protein-1 antigen and in situ hybridization using a target probe directed against select regions of Cm strain Nigg. Cm was also found in association with a urothelial papilloma in one mouse. These cases provide additional support for excluding Cm from research mouse colonies.
Влияние сульпирида в сочетании с пароксетином, диазепамом, тимогеном, мексидолом, гипербарической оксигенацией на когнитивные функции и уровень кортизола у мышей в условиях хронического стресса
Authors: Кирюхина Светлана Владимировна , Бочкарева Наталья Владимировна , Кукина Галина Николаевна , Колмыкова Мария Сергеевна , Лабунский Дмитрий Александрович , Баранов Денис Владимирович
Published: April 2024

В условиях хронического иммобилизационного стресса исследовали динамику изменений когнитивных функций мышей в тесте «Водный лабиринт Морриса» под влиянием антипсихотических лекарственных средств, примененных в виде отдельных препаратов, а также под влиянием двойных схем сочетания сульпирида с антидепрессантом, анксиолитиком, антиоксидантом, гипербарической оксигенацией, иммунокорректором и их совместного применения. Развитие дефицита когнитивных функций при хроническом иммобилизационном стрессе продолжительностью 26 суток было сопряжено с уровнем кортизола в сыворотке крови мышей: удлинение времени поиска платформы (r = 0,731); увеличение доли неудачных попыток поиска платформы (r = 0,591). Применение хлорпротиксена (1 мг/кг внутрибрюшинно 26 сут) и тиоридазина (20 мг/кг) в условиях хронического стресса не оказывало положительного эффекта в отношении когнитивных постстрессорных расстройств и концентрации кортизола у мышей. В то время как индивидуальное применение сульпирида (5 мг/кг) способствовало снижению доли неудачных попыток поиска платформы в 1,5 раза и уменьшению длительности флотирования в 2 раза (p < 0,001) относительно стерессированных животных. Корреляционные зависимости с концентрацией кортизола при этом отсутствовали или были очень слабыми. При использовании двойных схем «сульпирид + мексидол (5 мг/кг)», «сульпирид + тимоген (2 мкг/кг)», «сульпирид + гипербарическая оксигенация» были выявлены положительные эффекты в отношении исследуемых параметров когнитивных функций: лабораторные животные быстрее находили платформу, меньше флотировали, чем грызуны из групп, получавших сульпирид с диазепамом (0,5 мг/кг) или с пароксетином (0,4 мг/кг), однако значения показателей не достигали уровня интактных животных. Динамика концентрации кортизола и показатель «время решения задачи» имели сопряженность средней степени выраженности при сочетании сульпирида с мексидолом, или тимогеном, или гипербарической оксигенацией (r = 0,612, 0,645, 0,606, соответственно). При совместном применении сульпирида с анксиолитиком, антидепрессантом, антиоксидантом, гипербарической оксигенацией, иммунокорректором восстановление постстрессорных расстройств было наиболее полным, что выражалось в сокращении времени нахождения платформы в 4,3 раза, доли неудачных попыток в 5,7 раз, уменьшении уровня кортизола в 1,7 раз (p < 0,001) относительно животных, подвергнутых иммобилизационному стрессу. Выявлены положительные корреляционные зависимости высокой степени между уровнем кортизола и временем решения задачи (r = 0,726), а также долей неудачных попыток (r = 0,713). Аналогичный положительный эффект получен в группе комбинированной поддержки без применения пароксетина.
Типичные ошибки при выборе критичных характеристик протоколов клинических исследований эффективности лекарственных средств
Authors: Горячев Дмитрий Владимирович , Иванова Ольга Юрьевна , Лысикова Ирина Викторовна
Published: April 2024

Цель работы — анализ результатов проведенных экспертиз протоколов клинических исследований за 2020 – 2023 гг., для выявления типичных ошибок, допущенных в критичных разделах протоколов. Выявлен перечень недостатков, обозначены ключевые моменты, требующие тщательной оценки и обоснования. Представлены рекомендации по разработке протоколов клинических исследований с учетом требований Евразийского экономического союза, актуальных международных рекомендаций, а также с учетом типа изучаемого лекарственного средства. Представленные сведения помогут избежать ошибок в планировании клинических исследований, включая разработку протоколов, что позволит минимизировать как временные, так и финансовые затраты разработчиков лекарственных средств.
Apendicectomía laparoscópica por incisión única con instrumental recto, experiencia inicial
Authors: Duza Guillermo , Palermo Mariano , Acquafresca Pablo , Blanco Luis , Zorraquín Carlos
Published: April 2024

Introducción. La apendicitis aguda es la enfermedad abdominal quirúrgica más frecuente, se reportan alrededor de 250.000 nuevos casos al año.

Material y métodos. Se llevó a cabo un estudio prospectivo, descriptivo y de cohorte. Entre abril y diciembre de 2012 se practicaron 43 apendicectomías laparoscópicas, 25 por vía laparoscópica convencional mediante la utilización de 3 trocares. En cuatro procedimientos por incisión única, se requirió la colocación de uno y dos puertos accesorios, por presentarse peritonitis generalizada. Catorce fueron intervenidos mediante cirugía laparoscópica por incisión única. Seis fueron de sexo femenino y ocho de sexo masculino. La media de edad fue de 20,07 años, con un rango de 15 a 27 años.

Resultados. Los pacientes consultaron por dolor abdominal en la fosa ilíaca derecha, con una evolución de 24 a 72 horas. El diagnóstico intraoperatorio fue apendicitis congestiva en un paciente, apendicitis flegmonosa en nueve, apendicitis gangrenosa en tres y apendicitis gangrenosa con peritonitis localizada en uno. La duración promedio de la cirugía fue de 54,28 minutos (rango 25 a 75). La intensidad del dolor a las 24 horas medido con escala visual análoga fue de 2,4 en promedio (rango de 1 a 8). El promedio de internación fue de 1,91 días (1 a 6). El grado promedio de satisfacción con el resultado cosmético fue de 9,5, con un rango de 8 a 10.

Conclusiones. Esta variante técnica es segura, efectiva, reproducible y presenta todas las ventajas de la cirugía laparoscópica. El resultado cosmético pareciera ser superior cuando se compara con el de la cirugía laparoscópica convencional multipuerto.
Trasplante simultáneo de riñón y páncreas en pacientes con diabetes mellitus de tipo 1, Clínica Fundación Valle del Lili, Cali, 2001-2013
Authors: Serrano Óscar Javier , Villegas Jorge Iván , Echeverri Gabriel Jaime , Posada Juan Guillermo , Mesa Liliana , Schweineberg Johanna , Durán Carlos , Caicedo Luis Armando
Published: April 2024

Los resultados clínicos obtenidos con el trasplante simultáneo de riñón y páncreas en pacientes con diabetes mellitus de tipo 1 e insuficiencia renal terminal, permiten afirmar que esta modalidad de trasplante constituye la mejor opción de control metabólico para este grupo de población. Objetivo. Presentar los resultados clínicos en pacientes con diabetes mellitus de tipo 1 e insuficiencia renal terminal, sometidos a trasplante simultáneo de riñón y páncreas. Materiales y métodos. Del registro institucional de trasplante renal (TRENAL), que incluye 1.300 pacientes, se seleccionaron los sometidos a trasplante simultáneo de riñón y páncreas. Se hizo un análisis con estadísticas no paramétricas y se estimó la supervivencia mediante el método de Kaplan-Meier. Resultados. Entre los años 2001 y 2012, se practicaron 27 trasplantes simultáneos de riñón y páncreas. La mayoría de los individuos era de sexo masculino (59 %), con edad –al momento del trasplante– de 34 años, y un tiempo transcurrido desde el diagnóstico de diabetes mellitus de tipo 1 de 22 años. El control glucémico se logró entre las 24 y las 48 horas después de la cirugía. La supervivencia fue de 92 % al año y de 87 % a los dos años, y la del injerto pancreático, de 88 % al año, valores equiparables a los mejores resultados esperados. Conclusión. El trasplante simultáneo de riñón y páncreas constituye una alternativa terapéutica eficaz para los pacientes con diabetes mellitus de tipo 1 e insuficiencia renal terminal. El reducido número de la muestra reflejó no sólo las dificultades existentes para la obtención de donantes, sino, también, la falta de difusión y reconocimiento de posibles candidatos; de ahí la importancia de la difusión de las experiencias existentes, con el fin de facilitar el acceso a esta opción de tratamiento.
Tumores del estroma gastrointestinal del duodeno: revisión de la literatura científica actual con énfasis en el tratamiento
Authors: Beltrán Marcelo A. , Valenzuela Catalina , Díaz Ramón , Haito Yamile , Larraín Cristóbal
Published: April 2024

La localización en el duodeno es la más compleja para el tratamiento de los tumores del estroma gastrointestinal (Gastrointestinal Stromal Tumors, GIST). Los GIST duodenales son relativamente infrecuentes, con una prevalencia de 5 % a 7 % de todos los tratados quirúrgicamente. La mayoría de las publicaciones sobre GIST duodenales son reportes de caso o series de casos. Consecuentemente, las manifestaciones clínicas, el diagnóstico radiológico, el tratamiento quirúrgico y los factores pronósticos, constituyen materia de controversia. En el presente artículo se revisa, principalmente, el tratamiento quirúrgico de los GIST duodenales, tratando de establecer las opciones quirúrgicas de acuerdo con su localización. La mayoría de los artículos sobre GIST duodenales mencionan que, a diferencia de otros tumores localizados en el aparato gastrointestinal, el procedimiento óptimo para el tratamiento del GIST duodenal no se encuentra bien caracterizado en la literatura científica. Sin embargo, la revisión de las publicaciones sobre el tema demuestra que el abordaje quirúrgico descrito por diferentes autores es bastante estándar. Todos toman en cuenta la localización del GIST en el duodeno y sus relaciones anatómicas, para decidir entre la resección local o la pancreatoduodenectomía. Utilizando este conocimiento de sentido común, se proponen opciones quirúrgicas para GIST duodenales basadas en su localización en el duodeno.
CHANGES IN THE ORGANIZATIONAL STRUCTURE OF THE GRESIK DISTRICT FIRE FIGHTING AND RESCUE DEPARTMENT IN THE FRAMEWORK OF IMPROVING SERVICE QUALITY
Authors: Pakpahan Mangara Christanuel Aprilino , Handoko V. Rudy , Rochim Achluddin Ibnu
Published: April 2024

Bureaucratic reform and efforts to realize effective institutions with the alignment of regional apparatus nomenclature with regulations, several agencies made changes that were arranged more effectively in achieving the goals of bureaucratic reform. This study aims to describe and analyze the adjustment process for changes in the organizational structure of the Gresik District Fire Department (DPKP), as well as examine efforts to improve the quality of its services. .In order to achieve the research objectives, a qualitative method was used with a descriptive approach, by taking informants from the Fire and Rescue Service in Gresik Regency. The results of the interpretive analysis can be described that the East Java Provincial Government allowed and changed the Fire Department and Community Protection at the Satpol PP Service to OPD itself or the Gresik Regency Government Type C Fire Service. There was a change in the status of the IPK (Fire Department), the Gresik Fire and Rescue Service (DPKP) made various adjustments, which included adjusting the number of HR (Officers), supporting facilities and infrastructure, as well as various collaborative activities that could assist various tasks of handling fire incidents and repair. The efforts of the Gresik Regency DPKP in an effort to improve the quality of service were carried out in various aspects, starting from increasing the number of DPKP officers, building DPKP Posts in three locations, namely North Gresik, South and West Gresik, as well as rescue services from the threat of wild animals, as well as rescue pets and livestock. With regard to efforts to improve the quality of service, it is also suggested that the DPKP can increase cooperation with the private sector to support the operational tasks of fire fighting and rescue.
EVALUATION OF THE SOCIAL REHABILITATION PROGRAM FOR UNFITABLE HOUSES (RS-RTLH) IN CIKEMBAR DISTRICT SUKABUMI DISTRICT
Authors: Stiawan Yobi , Mulyadi Andi , Basori Yana Fajar FY
Published: April 2024

The title of this study is "Evaluation of the Social Rehabilitation Program for Uninhabitable Houses in Cikembar District, Sukabumi Regency".This study aimed to evaluate the Social Rehabilitation Program for Uninhabitable Houses in Cikembar District, Sukabumi Regency, to identify the inhibiting and supporting factors of this program. This study uses a qualitative research method with a narrative approach. Data collection techniques include observation, interviews, and documentation. The results of this study indicate that. The effectiveness of RTLH rehabilitation in Cikembar District, has been effectively carried out by the Housing and Settlement Service of Sukabumi Regency, Sufficiency in implementing RTLH rehabilitation is provided to low-income communities, Equitable rehabilitation of RTLH is provided to communities according to the criteria in Sukabumi Regent Regulation Number 46 of 2019. Responsiveness to the people whose houses have been rehabilitated is satisfied with government assistance. Accuracy is good and right on target. Inhibiting factors are insufficient budget, determination of low-quality materials, and lack of mutual cooperation in the community. While the supporting factors are the involvement of the community, RT, RW, Kelurahan,