bluuebunny/crossref_metadata_2025 huggingface dataset:
Modified vulval truss technique to prevent recurrence of cervico-vaginal prolapse in water buffaloes
Authors: Selvaraju Mani , Prakash Subramanian , Varudharajan Venkatraman , Periyannan Mani , Ravikumar Kaliannan , Palanisamy Mahakrishnan
Published: June 2023

A retrospective study was conducted in a total of 89 water buffaloes reported with cervico-vaginal prolapse (CVP) in various degrees and were initially examined for their physiological and haematological parameters. The affected buffaloes were classified into 3 groups based on the degree of CVP and were treated with 8 'R' principles and as a recurrence prevention strategy, they were managed with modified conventional vulval truss method, vulval retention suture method and both in all the three groups. The buffaloes handled with modified conventional vulval truss method showed reduced straining, genital injury and no obstetrical complications. The buffaloes treated with vulval retention suture showed mild straining, wound around the sutured site and those buffaloes treated with both modified conventional vulval truss method and vulval retention suture showed relatively effective results. Based on this study, it is concluded that the buffaloes affected with any degree of CVP and treated with modified conventional vulval truss method showed effective recurrence prevention with relatively no swelling, straining, haemorrhage, injury, maggot wound and postpartum obstetrical complications.
Verminous aspiration pneumonia in a buffalo
Authors: Thangapandiyan Marudhai , Kumar Veluchamy , Krishnaveni Premkumar , Balachandran Chidhambaram
Published: June 2023

Generally, aspiration of fluids, ruminal contents or foreign material into the upper respiratory tract, bronchi and lungs lead to aspiration pneumonia in bovines. An adult female Murrah buffalo was presented for postmortem examination. Complete blood count examination of live animal revealed leuckocytosis with shift to left. On the basis of gross and microscopical lesions, this case was concluded as aspiration pneumonia as a result of aspiration of regurgitated ruminal contents along with mature amphistome into the respiratory tract and subsequent edema, pneumonia, asphyxia and death.
Single nucleotide polymorphism, haplotypes and genotypes of Mannose-binding lectin (MBL1) gene and their association with clinical mastitis in Murrah buffalo
Authors: Shergojry Shahid Ahmad , Verma Archana , Gupta Ishwar Dayal , Mir Nazir Ahmad
Published: June 2023

The Mannose-binding lectin (MBL1) gene is an important component of immune response system. It plays vital role in activation of the complement system and act as chief defense molecule of host cell to provide protection against various diseases.  In the recent study, six novel single nucleotide polymorphisms (SNPs), at 2689G>C, 2751A>G, 4822T>C, 4853A>G, 4855T>C, and 4978T>C resulted in 2 non synonymous type of change at 4853A>G, 4855T>C resulting in one amino acid substitution Ser150Gly of MBL1 protein and their association with clinical mastitis were investigated in two hundred (200) Murrah buffaloes. These SNPs in MBL1 were genotyped by using the polymerase chain reaction (PCR) and Deoxyribose nucleic acid (DNA) sequencing methods in order to reveal the association with clinical mastitis. SHEsis software tool was used for construction of haplotypes and Linkage disequilibrium analysis. Twenty one (21) haplotypes were constructed. Allelic association analysis showed that C allele of 2689 G>C, A allele of 2751 A>G, C allele of 4822 T>C, A allele of 4853 A>G, C allele of 4855 T>C, and C allele of 4978 T>C had significant association with increased risk of clinical mastitis in Murrah buffaloes (P<0.05). Murrah buffaloes with CG genotype of 2689 G>C, AG or GG genotype of 2751 A>G, CC genotype of 4822T>C, AG or GG genotype of 4853 A>G, TC or CC genotype of 4855 T>C and CC genotype of 4978 T>C loci had significantly lower incidence of clinical mastitis compared to their counter genotypes. Haplotype association analysis showed that Hap21 (TATTGA) was found significantly related to higher risk of clinical mastitis (P<0.05). Hap14 (TGTTGG) and Hap5 (CGCCCA) were found significantly associated with lower risk of clinical mastitis in Murrah buffalo (P<0.05).
Educational Recovery in Higher Education: The Needs of Universities from the Lens of Education Experts
Authors: Guira Glenn , Doctolero Arnel , Ganir Florence , Pelgone Alfons Jayson
Published: June 2023

COVID-19 has worldwide effects. Extended school closures and recession are the worst education shock in decades. It hindered global progress, notably education. Global and national economic challenges caused fiscal austerity, poverty, decreased domestic expenditure and development aid for public sector initiatives. After disease transmission stops, this has hampered human progress. This qualitative-content analysis generated the needs of universities to recover from the learning loss due to COVID-19 pandemic. Twenty education experts with more than 20 years of extensive experience in education were enlisted as participants through purposive sampling. In this study, the results were hybrid learning, technological infrastructure, pedagogical approaches, mental health support and inclusivity and diversity. The themes that emerged from the study were the need for universities to adopt hybrid learning models, invest in robust technological infrastructure, adopt innovative pedagogical approaches, provide comprehensive mental health support, and prioritize inclusivity and diversity in their educational recovery efforts. Clearly, experts recommend a hybrid learning method that blends online and in-person training to make education recovery more compelling and individualized. Universities must invest in strong technology to facilitate online learning, effective communication, and faculty-student cooperation. To improve student engagement and learning, project-based and collaborative learning are encouraged. Students need therapy and stress management to be healthy. Finaly, schools should create an inclusive and varied educational atmosphere where everyone is appreciated, respected, and accepted as this may help universities build a resilient educational system that promotes education recovery and serves students' different requirements.
Transformando la Enfermería en El Salvador: Una Perspectiva sobre la Formación por Competencias en Cuidados Críticos
Authors: Flores-Martínez Yesenia Ivette
Published: June 2023

Este escrito ofrece una visión panorámica del cambio paradigmático en la formación deenfermería especializada en el país. El objetivo es resaltar la importancia de la formación porcompetencias en el sector de los cuidados críticos. Se analiza la evolución de la educación deenfermería, la integración de herramientas digitales y la implementación de aprendizaje mixto,destacando la necesidad de formación presencial en ciertas áreas. Se subraya el papel crucialde los posgrados en salud para fortalecer las competencias de los profesionales en enfermería.Es relevante la formación por competencias para mejorar la calidad de atención y la necesidadde promover la investigación y la actualización continua en cuidados críticos.
Influencia del consumo de alimentos cariogénicos y presencia de caries dental en la etapa escolar
Authors: Guzmán Oxza Joana Esther , Loza-Sosa Jannette Marga , Flores-Tola Cecilia Brenda , Crespo Mariscal Edy
Published: June 2023

Introducción: La ingesta de alimentos cariogénicos en preescolares de Bolivia se identificócomo un importante factor cariogénico en la primera infancia, afectando principalmente lasalud dental. Objetivo: Determinar el efecto del consumo de alimentos cariogénicos y eldesarrollo de caries en niños en edad escolar. Metodología: Se realizó un estudio descriptivo,transversal, observacional, con una población total de 191 estudiantes entre las edades de 6 y12 años utilizando un muestreo no probabilístico. Resultados: Según CPO-D/index.ceo-d, el80,1% de los niños tenían una dieta de riesgo moderado de caries asociada a caries muy severa(50,3%) y severa (14,1%). Conclusiones: se destaca el grado de controlar y restringir elconsumo de alimentos cariogénicos en niños en etapa escolar para notificar el progreso decaries dental. Mantener una buena higiene bucal desde edades tempranas, siendo necesariopromover una dieta saludable
Descoberta de modularidade em códigos de projetos monolíticos em Java utilizando redes complexas
Authors: Brito Jr Marcos C. , Silva Leando A.
Published: June 2023

Projetos monolíticos podem trazer aos desenvolvedores de sistemas grandes dificuldades quando necessário a manutenção ou ampliação de escopo de um projeto. Modularizar projetos para ter classes mais definidas e módulos menores para trabalhar podem trazer benefícios como o tempo de desenvolvimento do projeto e produtividade para a equipe. Este trabalho propõe o uso de redes complexas utilizando a biblioteca NetworkX em Python utilizando o algoritmo de modularidade gulosa, para a análise estática de um código escrito em Java com a finalidade de descobrir módulos a partir de análise de dependências entre classes, indicando a melhor forma de encontrar os agrupamentos a serem tomados como módulo de código.
Investigating Change and Incident Management in a Proprietary Software Ecosystem - Survival Mode On
Authors: Costa Luiz Alexandre , Sampaio Alexandre , Fontão Awdren , Santos Rodrigo Pereira dos
Published: June 2023

Proprietary Software Ecosystems (PSECO) are those that concentrate knowledge on a closed software platform. The growing number of demands causes organizations to work at an accelerated pace to deliver results. Changes and incidents have a negative impact on the workload, compromising its stability. Based on a case study in a large international insurance organization, this study aims to verify the behavior of development teams from the point of view of changes and incidents in a PSECO. The following research methods were applied: i) robotic process automation; ii) data mining; and iii) social network analysis. As a result, this study serves as an alert for the organization’s IT board regarding the governance of traditional software development processes to survive in a competitive market.
Avaliação do Desempenho de Ferramentas de Transcrição de Áudio em Português para Análise de Dados da Web
Authors: Santos Jonatas , Araujo Marcelo M. R. , Caetano Josemar , Santos Yago , Reis Julio C. S. , Silva Ana P. C. , Almeida Jussara M.
Published: June 2023

Neste trabalho apresentamos uma avaliação do desempenho de ferramentas de transcrição de áudio em Português utilizados para análise de dados da Web. Para isso, exploramos um conjunto de dados de acesso público, e realizamos análises a partir de duas dimensões principais: número (total) de falhas e precisão. Nossos resultados apresentam descobertas interessantes que podem ser úteis para guiar pesquisadores na escolha de métodos de transcrição de áudio para estudos focados no idioma Português.
Exceptional Collaboration Patterns in Music Genre Networks
Authors: Oliveira Gabriel P. , Moro Mirella M.
Published: June 2023

Music is one of the world’s most important cultural forms, and also one of the most dynamic. Such a dynamic nature can directly influence artists’ careers and reflect their success. In this work, we combine social networks and data mining techniques to analyze musical success from a genre-oriented perspective. Our goal is to mine exceptional collaboration patterns in success-based genre networks where the success deviates from the average. We conduct our analyses for global and eight regional markets, and the results show that each market has specific patterns of genre connections in which success is above average. Hence, our findings serve as a first step in developing strategies to promote future song releases across the world.
Criação de um Dataset de Múltiplos Domínios para a Plataforma de Jogos Online da Epic Games
Authors: Gomes Samuel S. , Ferreira Carlos H. G. , Sousa Alexandre M.
Published: June 2023

O mercado de jogos online aumenta ano após ano, no entanto, algumas plataformas de jogos não possuem um repositório de dados estruturado, organizado e público para facilitar pesquisas. Dessa forma, o objetivo deste trabalho é criar um dataset que contenha informações dos jogos da Epic Games de maneira que inclua informações de diferentes domínios, tais como do seu respectivo site, de suas redes sociais e avaliações de jogos do OpenCritic. O dataset construído tem informações de quase mil jogos, 17 mil avaliações e quase 1 milhão de tweets.
An Introduction to the Complexity Class of Pure Nash Equilibrium
Authors: Wirz Victor Hugo , Moura Pedro Nuno
Published: June 2023

Taxonomy of problems in Computer Science has been typically done with formulations as decision problems. This approach is inadequate for many search problems of interest when the structure of the instance in itself guarantees the existence of a positive certificate. In this paper, we provide an introduction to the class of problems PLS and its connections with finding Pure Nash Equilibrium in Congestion Games.
Controlando o fogo nos fulerenos
Authors: Fusquino Sérgio , Nicodemos Diego , Sasaki Diana
Published: June 2023

O problema do Bombeiro foi introduzido por Hartnell em 1995 e consiste em um incêndio que começa em um ou mais vértices de um grafo e se espalha para todos os vértices adjacentes que ainda não foram protegidos. Neste trabalho nós apresentamos um algoritmo do problema do Bombeiro para uma família infinita de grafos fulerenos com simetria icosaedral completa, fornecendo uma taxa de sobrevivência de pelo menos 50%.
The Hidden Subgroup Problem and Non-interactive Perfect Zero-Knowledge Proofs
Authors: Costa Abner F. B. , Hepp Henrique , Silva Murilo V. G. da , Zatesko Leandro M.
Published: June 2023

The Hidden Subgroup Problem (HSP) generalises many problems that are candidates to be NP-intermediate. It was shown that the decision version of HSP belongs to the zero-knowledge complexity class HVPZK and that, if the size of the group is known, it also belongs to NISZK. We show that whenever we can sample uniformly at random elements of the group and of a set, with the same size of the group, that contains the image of the function that hides the subgroup, the problem is in NIPZK1 (i.e. NIPZK with perfect completeness). As a second contribution, we show that NIPZK1 has a complete promise problem that is a restricted version of a complete promise problem for the NIPZK class.
On total coloring of small fullerene nanodiscs
Authors: Cruz Mariana M. F. da , Figueiredo Celina M. H. de , Sasaki Diana , Castonguay Diane
Published: June 2023

We investigate the total coloring of fullerene nanodiscs, a subclass of cubic planar graphs with girth 5 arising in Chemistry, motivated by a conjecture about the nonexistence of a Type 2 cubic graph of girth at least 5. We prove an auxiliary lemma which says that every central layer of a fullerene nanodisc is 4-total colorable, a necessary condition for the nanodisc to be Type 1, and we contribute by giving 4-total colorings for small fullerene nanodiscs, showing that these graphs are Type 1.
On (acyclic) proper orientations and the cartesian product
Authors: Araújo Júlio , Cezar Alexandre
Published: June 2023

Given an orientation D of the edges of a simple graph G, the indegree of a vertex v ∈ V(G), dD(v), is the number of arcs with head in v. Such orientation induces a coloring φ(v) = dD(v) + 1 of G. We say that D is a proper k-orientation if φ is a proper (k + 1)-coloring of G. The proper orientation number of G, denoted by X(G), is the least positive integer k such that G admits a proper k-orientation. We study a variation of this problem where we consider the orientation D to be acyclic. To the best of our knowledge this is the first article considering this variation. Furthermore, we also study the parameter X for graphs obtained by the cartesian product of graphs, introducing the concept of discordant set of proper orientations, that is a set where in different orientations, the same vertex has different indegrees.
Eliminar Ciclos pela Remoção de um Emparelhamento Parametrizado pela Largura em Árvore é FPT
Authors: Lima Carlos V. G. C. , Marcilon Thiago , Morais Cícero S.
Published: June 2023

Dado um grafo G = (V,E), um emparelhamento deciclante M ⊆ E(G) de G é um emparelhamento cuja remoção elimina todos os ciclos de G (i.e. G − M é uma floresta). Estudamos o problema de determinar se G admite um emparelhamento deciclante. Já é conhecido que este problema é NPcompleto mesmo para grafos subcúbicos. Neste trabalho mostramos que ele está em FPT quando parametrizado pela largura em árvore.
Complexidade parametrizada do problema de reconfiguração de separadores
Authors: Gomes Guilherme de C. M. , Santos Vinicius F. dos
Published: June 2023

Separadores em grafos são conjuntos de vértices cuja remoção destrói todos os caminhos entre dois vértices dados. Em particular, dizemos que um conjunto é um st-separador se sua remoção destrói todos os caminhos entre dois vértices s e t. Problemas de reconfiguração recebem como entrada dois objetos combinatórios e o objetivo é transformar um no outro, mantendo certas propriedades ao longo da transformação. No problema de reconfiguração de separadores, são dados um grafo G e dois st-separadores A e B e deseja-se transformar A em B utilizando certas operações de modificação, de maneira que todos os passos intermediários sejam, também, st-separadores. Este problema é NP-dificil e, em algumas versões, é PSPACE-dificil. Neste trabalho, consideramos pela primeira vez a complexidade parametrizada deste problema de reconfiguração e mostramos resultados positivos para uma parametrização estrutural, além de discutir outras parametrizações naturais.
Um Modelo de Otimização para um Problema Real de Programação de Horários de Trens Urbanos
Authors: Mendes Renata , Subramanian Anand , Bruck Bruno , Bulhões Teobaldo
Published: June 2023

Este trabalho é fruto da colaboração com uma empresa brasileira de trens que faz uso de um único trilho em sua rede ferroviária, onde trens podem trafegar por ambos os sentidos. Trata-se de um problema de escalonamento de trens, em que o objetivo não é apenas gerar uma grade horária diária para a linha ferroviária, de modo a melhor satisfazer os usuários da rede de transporte, mas também atribuir rotas predeterminadas para tais veículos. Para isso, foi proposta uma formulação matemática a fim de retratar o problema de maneira eficaz. O modelo desenvolvido se demonstrou capaz de encontrar soluções viáveis, bem como valores ótimos para instâncias de pequena e média dimensão.
Minimum Diameter Trees Subject to a Budget Constraint
Authors: Azevedo Amanda Ferreira de , Lucena Abilio
Published: June 2023

Formulations are proposed for problems that ask for minimum diameter trees of an undirected graph, subject to an upper bound on the sum of their edge costs. The problems, namely the Budget Restricted Minimum Diameter Spanning Tree, the Budget Restricted Minimum Diameter Steiner Tree, and the Budget Restricted Minimum Diameter Terminal Steiner Tree, represent challenging extensions for three intensively investigated NP-hard problems. Furthermore practical applications for these extensions naturally carry over from those for the problems they originate from. Three distinct types of formulations are proposed here for each of the previously indicated problem extensions. Computational results for these formulations will be presented separately.
Decomposição de Fluxos em Digrafos Arco-Coloridos
Authors: Carvalho Cláudio , Costa Jonas , Maia Ana Karolinna , Sales Cláudia Linhares
Published: June 2023

Sejam N uma rede sobre um digrafo D e x um (s, t)-fluxo viável em N. Dizemos que x é ℓ-divisível se ele pode ser decomposto em até ℓ fluxos caminhos. Neste artigo, consideramos o problema de obter uma decomposição em caminhos em digrafos arco-coloridos, de modo que a soma do número de cores dos caminhos seja mínima. Nós mostramos que, dado fluxo x em uma rede N sobre um digrafo arco-colorido e um inteiro k, é NP-completo decidir se há uma decomposição de x em caminhos, tal que a soma do número de cores dos caminhos seja no máximo k, e mostramos alguns casos para os quais isso pode ser feito em tempo polinomial.
Uma heurística híbrida para o problema de escalonamento de tarefas em uma máquina com tempos de setup dependentes da sequência e datas de liberação
Authors: Morais Rafael , Bulhões Teobaldo , Subramanian Anand
Published: June 2023

Este trabalho aborda o problema de minimizar o tempo de conclusão em um escalonamento para uma máquina, considerando datas de liberação e tempos de configuração dependentes da sequência. Uma abordagem heurística híbrida que combina iterated local search e beam search é proposta. Para reduzir a complexidade computacional do algoritmo uma estratégia de avaliação eficiente de movimentos é utilizada durante a busca local. Foram realizados experimentos em 1800 instâncias da literatura, demonstrando que o algoritmo é capaz de obter soluções de alta qualidade em comparação com métodos existentes.
Modelo para Detecção de Plágio em Exercícios de Programação na Linguagem Python
Authors: Chaves Rafael C. , Albuquerque Kerven M. , Chaves Renato C. , Gouveia Thiago
Published: June 2023

Este artigo propõe uma abordagem baseada em grafos bipartidos com arcos unidirecionais para detectar plágio em códigos escritos em Python. A modelagem do grafo é projetada para permitir a identificação da probabilidade de plágio por meio de soluções para o problema do Menor Caminho com Premiação Máxima.
EndGame for Corruption - A DPE-Based Framework to Support the Design of Serious Games for Fight Against Corruption
Authors: Abreu Vinicius Santos de , Classe Tadeu Moreira de
Published: June 2023

Corruption, a pervasive issue that affects societies globally, is closely linked to inequality and the inadequate provision of public services. In this context, where the population is the primary victim, serious games are utilized to raise awareness, aiming to empower individuals and strengthen their role as vigilant citizens. Game designers strive to develop solutions that facilitate learning and reflection on corruption. This article proposes an adaptation of the Design Play and Experience Framework, referred to as the Endgame for Corruption Framework (EgC Framework). This adaptation incorporates the reflection process and is guided by the learning objectives mapped from Bloom’s Taxonomy. The EgC Framework is the basis for designing a game that immerses players in a corrupt context. We conducted a quasi-experimental study to evaluate the game’s effectiveness and gathered participants’ perceptions through a survey questionnaire. The collected data underwent both quantitative and qualitative analyses. The results demonstrated clear indications of player dissatisfaction and reflection on the situations presented in the game. These findings provide valuable evidence of the game’s impact in prompting players to engage critically with corruption. Overall, this research showcases the potential of serious games in addressing the issue of corruption. The EgC Framework, combined with thoughtful design choices and evaluation methods, contributes to the development of games that foster awareness and reflection among players.
Automatic Recipe Ingredient Substitution Based on Text Mining and Data Clustering Approaches
Authors: Pacífico Luciano D. S. , Britto Larissa F. S. , Ludermir Teresa B.
Published: June 2023

With the advance of Information Technologies, recipe sharing websites have become very common, and people can use such systems in an attempt to find a recipe that fits both their desires and nutritional needs. But sometimes ingredients from a given recipe list may not be available, what may require some adaptations by replacing the missing ingredients. In this work, a data-driven approach is employed to develop a new recipe generation system, that recommends substitute ingredients to adapt recipes into a target domain. The proposed system, which is based on Text Mining and Data Clustering techniques, is evaluated by means of a qualitative analysis, showing promising results.
A Machine Learning with an Inlier/Outlier Separation Approach for the Prediction of Wagon Maintenance Times
Authors: Felix Josemar Coelho , Oliveira Vanessa Miranda , Silva Rodrigo
Published: June 2023

Time spent in wagons maintenance consumes a significant part of a rail freight company's budget. Thus, knowing how much time it is going to be spent in a maintenance procedure is critical for their management and planning. A common approach used to predict these time expenditures is the so called chronoanalysis. Despite their wide spread use, they may be inaccurate in some scenarios. Thus, in this paper, we try to replace it with machine leaning models which did not work at first. Then we propose a methodology that uses the chronoanalysis to divide the maintenance procedures into outliers and inliers. Hence, we were able to create independent models for each class. With this approach, the average mean absolute error was reduced from about 6 man-hour to a little above 2 man-hours. The best tested configuration presented an average mean absolute error of 0.417 man-hours compared with a 4.490 man-hours from the chronoanalysis.
A Link Prediction-Based Method Towards Lead Management
Authors: Brugalli G. P. , Gonçalves A. L. , Bordin A. S. , Artese L. S.
Published: June 2023

Lead management is an essential part of the customer acquisition and retention stages. However, as the number of leads increases, data-driven management automation is critical for better customer acquisition and retention. In this context, the present work proposes a method that supports lead management to identify and recommend to the sales team, future interests of leads that already exist in an organizations database in order to acquire or retain customers. To fulfill this objective, the network representation learning and link prediction models are explored. A case study is presented to demonstrate the effectiveness of the proposed method. All generated models reached a value between 0.873 and 0.998 of ROC-AUC. However, the prediction models showed low coefficient values, far from 1, the ideal value. Nevertheless, the method shows promise to be investigated in practice. For future work, a deep understanding of technical capabilities of network learning is suggested to obtain better results from link prediction models.
Forgetting on Evolving Graphs for Accurate and Diverse Stream-Based Recommendation
Authors: F. L. Schmitt Murilo , Spinosa Eduardo J.
Published: June 2023

Stream-based recommender systems are an active research field, relying on incremental algorithms to update models by incorporating new data on a single pass, discarding such data after processing. A limitation of solely including new data is the accumulation of obsolete concepts, which eventually raises accuracy and scalability concerns. In this work, we propose a gradual forgetting technique for incremental neighborhood-based methods that locally forgets items based on recency and popularity, by decreasing importance of neighborhood of items for every incoming observation to emphasize more recent and reinforced ones. The technique includes parameters to increase diversity, by retaining less popular yet relevant items, and scalability, by pruning obsolete connections not reinforced by new data. Experiments conducted by extending a recent incremental graph-based approach highlight the effectiveness of the proposed technique, as its application improved scalability and diversity, outperforming baselines.
Fault Location in Transmission Lines based on LSTM Model
Authors: Ensina L. A. , Karvat P. E. M. , de Almeida E. C. , S. de Oliveira L. E.
Published: June 2023

Transmission lines are fundamental components of the electric power system, demanding special attention from the protection system due to the vulnerability of these lines. This paper presents a method for fault location in transmission lines using data for a single terminal without requiring explicit feature engineering by a domain expert. The fault location task provides an approximate position of the point of the line where the failure occurred, serving as information to the operators to dispatch a maintenance staff to this location to reclose the transmission line with better reliability and safety. In our method, we extract two post-fault cycles of the three-phase current and voltage signals to serve as input to a model based on the LSTM algorithm. We defined the model's architecture with empirical experiments searching for the best structure to estimate the fault distance. For this purpose, we used a dataset with diversified failure events, also available to the scientific community. The results demonstrate the effectiveness of the proposed method with a mean error of 0.1309 km +- 0.4897 km, representing 0.0316% +- 0.1183% of the transmission line extension.
Neuroevolutive Strategies for Topology and Weights Adaptation of Artificial Neural Networks
Authors: Muniz L. F. , Lintzmayer C. N. , Jutten C. , Fantinato D. G.
Published: June 2023

Among the methods for training Multilayer Perceptron networks, backpropagation is one of the most used ones on problems of supervised learning. However, it presents some limitations, such as local convergence and the a priori choice of the network topology. Another possible approach for training is to use Genetic Algorithms to optimize the weights and topology of networks, which is known as neuroevolution. In this work, we compare the efficiency of training and defining topology with a modified neuroevolution approach using two different metaheuristics with backpropagation on 5 classification problems. The network’s efficiency is assessed through Mutual Information and Information plane. We concluded that neuroevolution found simpler topologies, while backpropagation showed higher efficiency at updating the weights.
Tourism Recommendation System using complex network approaches
Authors: Alves Antônio P. S. , Félix Lucas G. S. , Barbosa Carlos Magno G. , Vieira Vinícius da Fonseca , Xavier Carolina Ribeiro
Published: June 2023

The amount of available data on the web has grown exponentially, mostly due to the emergence of the Collaborative Internet, in mid-2006, which turns the process of obtaining information into a hard task. This way, several computational techniques have been used in order to automate the exploitation and analysis of data, such as Text Mining techniques, Topic Modeling (TM), which establishes relationships between text documents and discussion topics through the present words, and Sentiment Analysis (SA), whose objective is to identify sentences' polarity; Complex Networks modeling, which seek to capture the dynamics of complex systems, present in social networks; and Recommendation Systems, which assist with decision making and whose operation resides in the suggestion of items that have not yet been evaluated by a user, such as traveling to a new place or trying another meal from a menu. The Tourism scenario is also included in the context of massive data generation and advances in techniques to deal with them. In this case, specialized travel platforms, like Tripadvisor, have a major role since they concentrate a large amount of data about users and their experience in Points-of-Interest (POI). Therefore, this work proposes a new approach to a predictive model for POI recommendation systems based on the construction of a Complex Network and the use of specific techniques for its structural analysis. The city chosen to validate these objectives was the city of Tiradentes, Minas Gerais, whose geographic proximity and tourism-oriented economy make it a good choice. The results obtained show that a predictive model based on Complex Networks does not overcome the error obtained by baseline algorithms, however, it brings a good ranking correlation between what was predicted and the real result, which makes it a good option for recommendation systems.
Stance-taking as an identity construction in advertising targeted at mothers. A comparative analysis
Authors: Pelclová Jana
Published: June 2023

The paper presents a comparative analysis of two audiovisual commercials targeted at mothers. While the Huggies commercial employs the mother identity established in the 20th-century media discourse, the Frida Mom commercial challenges this normative by constructing a more complex identity. The major argument is that stance-taking as a discursive practice enables the persuader to build the intended identity and thus to influence the persuadee’s decision. The paper studies both verbal and non-verbal stance-taking markers employed by the secondary participants, voice-over and superimposed texts. It concludes that the modalities are complementary in the sense that the verbal certainty provided in a faceless style is completed by the visual positive affect and vice versa in case of the Huggies commercial, but in the Frida Mom commercial both verbal and visual modalities communicate either doubt and negative affect simultaneously, or the positive affect. Concerning the stance object, while the Huggies commercial focuses on evaluating the product being advertised and the positive aspect the product brings to the mothering practice, the Frida Mom commercial evaluates the mothering practice in a much broader sense, ranging from the negative affect towards the mental health issues related to breastfeeding up to the positive affect towards maternal love.
Numerical Investigation on Reduction Characteristics of Welding Deformation According to Standoff Distance in Heat Sink Welding Process
Authors: Yi Ji-Hyun , Go Bum-Su , Kwon Yong-Hyuk , Bang Hee-Seon
Published: June 2023

Welding with a trailing heat sink process is proposed as a useful technique to reduce welding deformation without a significant loss of manufacturing efficiency. In particular, this method is effective than the existing mechanical or thermal correction method in thin plate steel structures with low stiffness. In this study, a three-dimensional thermal elastic-plastic finite element model using a 3-mm thick 304L stainless steel sheet was developed to simulate heat sink welding. The reduction characteristics of welding deformation according to the standoff distance between the welding heat source and the heat sink zone was investigated in the numerical simulation. The results confirmed that the longitudinal and angular deformations were significantly reduced compared with those by conventional welding. The longitudinal deformation was reduced by approximately 60%, from 5.50 mm to 2.22 mm, and the angular deformation was reduced by approximately 70%, from 1.68 mm to 0.51 mm. The overall results obtained in the numerical analysis indicated that welding deformation significantly decreased as the standoff distance was shorter owing to the temperature cooling effect of the welds.
Effect of Post-Weld Heat Treatment Temperature on the Mechanical Properties and Microstructure of Weld Heat-Affected Zone of 2.25Cr-1Mo Steel
Authors: Kang Yongjoon , Seo Kangmyung , Lee Jun-Ho , Oh Chang-Young , Lee Seung-Gun
Published: June 2023

The effect of post-weld heat treatment (PWHT) temperature on the mechanical properties of the heat-affected zone (HAZ) of 2.25Cr-1Mo steels was investigated. SA-387 Gr. 22 Cl. 2 steel was employed, and the specimens taken from the steel were thermally cycled using Gleeble to simulate the coarse-grained HAZ (CGHAZ), fine-grained HAZ (FGHAZ), and intercritical HAZ (ICHAZ). Before the PWHT, the simulated HAZs exhibited poor impact toughness as compared with the base metal. The base metal and simulated HAZ specimens were heat treated in a furnace at 610, 650, 690, and 730℃ for 8 h; their impact toughness improved significantly irrespective of the PWHT temperature. The microstructural changes owing to the PWHT were observed using scanning electron microscopy and correlated with the mechanical properties.
Global Market Analysis for Welding Consumables and Welding Robot (Ⅱ)
Authors: Kim Byeong-jin , Kang Minjung , Cheon Jason
Published: June 2023

This study analyzed the market trends of welding consumables and welding robots from international welding industries using data reported by SHIMPO CORPORATION. Recently established companies are planning to use automation to achieve high performance with cheap labor. In this context, welding robots are commonly used in manufacturing facilities to perform high-quality welds at a faster rate than with manual welding. In addition, most welding procedures exhaust welding consumables such as rods and wires. Therefore, it is possible to estimate the trends of the overall welding market and related application industry market through the market trends of welding robots and welding con- sumables. From 2009 to 2021, the sales of welding consumables grew at a compound annual growth rate (CAGR) of 2.17%, whereas those of welding robots grew at a CAGR of 11.17%. The higher growth rates in developing countries have lifted up the overall market growth, whereas the rates in leading markets such as the US and China have tended to slow down. In conclusion, the increasing demands for manufacturing and construction in developing countries such as India and Southeast Asia are expected to drive the market growth in the coming years.
A Study on the Change of Wire Feeding Speed in GTA Welding (Ⅰ) - Changes in the Modes of Metal Transfer -
Authors: Park Daekyu , Cho Jehyoung , Park Youngwhan
Published: June 2023

GTA welding (GTAW) is a representative welding technique employed for pipe root gap welding. Although this technique allows the control of the current and wire feeding speed as independent variables, it is difficult to determine these variables to ensure appropriate quality. In the pipe root gap welding task, the parameters of automated welding applications are difficult to determine due to gap and misalignment. Accordingly, this study was conducted to examine changes in the modes of metal transfer according to the welding current and wire feeding speed. In the various processes of GTAW, changes in volume transfer form yield certain advantages and disadvantages, necessitating appropriate tuning procedures to maintain a desired quality. Changes in heat input ratio (HIR), which relates to the welding heat input (HI) and wire feeding speed, were observed to predict modes of metal transfer. According to changes in welding current and wire feeding speed, metal transfer was expressed as an index, and a regression equation was formulated to predict the modes of metal transfer through said index.
POTENSI PEMANFAATAN LIMBAH KULIT JERUK SIAM (Citrus nobilis var. microcarpa) MENJADI MINYAK ATSIRI UNTUK SKALA INDUSTRI RUMAH TANGGA DI KABUPATEN SAMBAS
Authors: Jimi Jimi , Febrina Asti , Rozana Rozana , Frengki Frengki
Published: June 2023

Produksi buah jeruk siam atau keprok di Kalimantan Barat mencapai 1,3 juta ton pada 2020. Jumlah tersebut merupakan yang terbesar dibandingkan produksi buah-buahan dan sayuran lainnya di Kalimantan Barat. Buah jeruk sering kali dimanfaatkan pada bagian daging buahnya sedangkan kulitnya dibuang begitu saja. Padahal, kulit jeruk bisa dimanfaatkan sebagai produk olahan seperti minyak atsiri. Tujuan penelitian ini adalah untuk mengetahui proses pembuatan minyak atsiri skala rumah tangga dari limbah kulit jeruk. Metode penelitian menggunakan teknik eksperimen. Analisi data mengunakan Deskriftif dan Deskriftif kuantitatif. Berdasarkan hasil penelitian yang dilakukan dihasilkan warna minyak atsiri kulit jeruk siam yang di hasilkan pada proses destilasi sesuai dengan standar ISO 3140:2011 yaitu kuning bening. Rendemen minyak yang dihasilkan relatif kecil yaitu 0,4%. Kadar air yang terkandung dalam minyak atsiri kulit jeruk relatif besar yaitu 82,8549%. Serta, terdapat 3 tahapan dalam spesifikasi proses destilasi minyak atsiri kulit jeruk siam yang pertama proses pengupasan, kedua proses destilasi, dan yang ketiga pemisahan minyak dan air.
La Política Nacional de Desarrollo e Inclusión Social y su relación con la Seguridad Nacional
Authors: Morán Angeles Silvia Melina , Tito Tadeo Mary An
Published: June 2023

Este artículo examina la relación existente entre el aspecto político y la seguridad nacional en el Perú, desde el punto de vista de la política nacional de desarrollo e inclusión social. La Seguridad Nacional es un tema de suma importancia para cualquier país, pues constituye la garantía de que el Estado busca la obtención y mantenimiento de los objetivos nacionales, a través de acciones políticas, económicas, sociales y militares; para lo cual requiere de una estrecha interacción entre las instituciones políticas y los organismos encargados de garantizar la seguridad del Estado y sus ciudadanos. En el caso específico del Perú, un país que ha venido enfrentando diversas amenazas, es crucial comprender cómo el aspecto político influye en la seguridad nacional y cómo se pueden tomar medidas efectivas direccionándola hacia la protección de la persona y la consecución de su desarrollo.
Analisis Rencana Strategis Sumber Daya Manusia (SDM) Keperawatan Di Rumah Sakit Wilayah Jakarta
Authors: Jayawisastra Pinandhika , SUMAMPOUW MEYLLY , CHAIN VERONICA , Lestari Puji , Yulian Situmeang Widiya
Published: June 2023

Pendahuluan: Sumber Daya Manusia (SDM) menjadi pemegang peran penting dalam kemajuan organisasi. Perawat adalah profesi terbanyak didalam pelayanan kesehatan yang memerluka prencanaan strategis untuk dapat membantu memaksimalkan kekuatan dan meningkatkan kualitas asuhan keperawatan dan keselamatan pasien. Tujuan: untuk menyampaikan hasil eksplorasi data sumber daya manusia keperawatan dan menganalisis data serta membuat rekomendasi strategis yang dapat dilakukan oleh perawat manajer dan rumah sakit dalam mengelola sumber daya keperawatan di Rumah sakit wilayah Jakarta. Metode: Metode yang digunakan adalah studi kasus menggunakan wawancara dan observasi lapangan. Hasil eksplorasi data kemudian dianalisis dengan menggunakan tinjauan literatur, dan dianalisis menggunakan format SWOT (strength, weakness, opportunity, threats), Matrix IFE (internal factor evaluation) dan EFE  (external  factor evaluation), serta merumuskan strategi TOWS (threats, opportunity, weakness, dan strength) dan dituangkan dalam tabel  Key Performance Indicator (KPI). Hasil: Rumah sakit wilayah Jakarta berada pada posisi maka posisi Sel III. Dengan perencanaan strategis menggunakan strategi Hold and Maintain, dan fokus dalam strategi market penetration dan product development. Dengan nilai IFE sebesar 1,98 (Lemah) dan Nilai EFE = 3,02 (Tinggi). KPI yang telah diformulasikan antara lain Pengembangan pendidikan keperawatan berkelanjutan dengan program beasiswa, pengembangan kompetensi SDM keperawatan, Peningkatan program retensi SDM keperawatan, Peningkatan sistem reward keperawatan berdasarkan jenjang karir dan klaster unit keperawatan, Peningkatan mutu pelayanan keperawatan. Rekomendasi: Rumah sakit X Jakarta dapat melakukan peningkatan kompetensi SDM dengan memberikan kesempatan pengembangan profesi berkelanjutan secara formal maupun informal, meningkatkan mutu dan kualitas pelayanan kepada pasien, meningkatkan retensi karyawan, dan mengembangkan poli cardiac telenursing
Kata Kunci: SDM, Keperawatan, Rencana Strategis, SWOT analisis
Asuhan Keperawatan Pada Ny. I Dan Ny. R Dengan Cerbrovascular Disease (CVD) Di Ruang Inap Penyakit Dalam Rumah Sakit Umum Daerah Kota Tangerang Selatan
Authors: Ridlo Muhamad
Published: June 2023

Latar Belakang: Stroke atau Cerebrovascular Disease (CVD) merupakan penyakit tidak menular yang menjadi salah satu utama penyebab kecacatan dan dapat mengakibatkan kematian setelah penyakit jantung dan kanker di berbagai negara maju maupun negara  berkembang.  Tujuan:  Untuk  memperoleh  gambaran  dan mampu melakukan asuhan keperawatan pada pasien dengan CVD. Metode: Desain penelitian deskriptif analitik dengan pendekatan studi kasus. Sampel pada studi kasus ini terdiri dari Ny. I dan  Ny. R dengan  diagnosa CVD yang berpedoman  pada asuhan keperawatan medikal bedah. Hasil: Setelah dilakukan asuhan keperawatan selama 3x24 jam pada Ny. I didapatkan hasil risiko perfusi serebral tidak efektif teratasi sebagian karena tidak adanya peningkatan kesadaran, nyeri akut teratasi sebagian karena skala nyeri hanya menurun menjadi skala 4 (sedang), gangguan komunikasi verbal teratasi sebagian karena disartria dan pelo tidak menurun. Sedangkan pada Ny. R setelah dilakukan asuhan keperawatan selama 3x24 jam didapatkan hasil risiko perfusi serebral tidak efektif tidak teratasi karena tidak ada pengkatan kesadaran, defisit nutrisi tidak teratasi karena porsi makan menurun dan gangguan mobilitas fisik tidak teratasi karena tidak ada peningkatan kekuatan otot. Kesimpulan: Hasil studi kasus ini dapat disimpulkan bahwa terapi bicara efektif pada pasien stroke dengan kelemahan otot bicara sedangkan terapi Range Of Motion (ROM) kurang efektif pada pasien yang terdapat kelemahan otot ekstremitas dengan kejadian stroke berulang. Disarankan perawat mampu melakukan intervensi keperawatan terutama terapi ROM serta penyuluhan kesehatan secara efektif untuk meningkatkan kekuatan otot dan sendi.
KHẢO SÁT VỀ TÌNH HÌNH SỬ DỤNG KHÁNG SINH VÀ SỰ ĐỀ KHÁNG KHÁNG SINH TẠI KHOA NỘI TỔNG HỢP BỆNH VIỆN TRƯỜNG ĐẠI HỌC Y DƯỢC CẦN THƠ NĂM 2021-2022
Authors: Nguyễn Thanh Lâm , Lâm Hoài Trung , Võ Phạm Minh Thư , Dương Thị Thanh Vân
Published: June 2023

Đặt vấn đề: Việc khảo sát tác nhân gây bệnh và tình hình đề kháng kháng sinh cần phải tiến hành thường xuyên, giúp chỉ định kháng sinh phù hợp là một trong những yếu tố quan trọng quyết định chi phí cũng như sự thành công trong điều trị. Mục tiêu nghiên cứu: (1) Kháo sát tỷ lệ sử dụng kháng sinh tại Khoa Nội tổng hợp Bệnh viện Trường Đại học Y Dược Cần Thơ; (2) Khảo sát tỷ lệ đề kháng kháng sinh tại khoa Nội tổng hợp Bệnh viện Trường Đại học Y Dược Cần Thơ. Đối tượng và phương pháp nghiên cứu: Nghiên cứu mô tả cắt ngang, 463 bệnh nhân nội trú có điều trị bằng kháng sinh tại khoa Nội Tổng hợp Bệnh viện Trường Đại học Y Dược Cần Thơ, số liệu được nhập liệu bằng phần mềm Epidata 3.1 và phần tích bằng phần mềm R 4.2.3. Kết quả: Trong 463 bệnh nhân, chẩn đoán khi sử dụng kháng sinh có tỷ lệ cao nhất là nhiễm khuẩn đường hô hấp 35,9%, nhóm beta - lactam dược sử dụng nhiều nhất chiếm 65,8%. Đa số phác đồ kháng sinh điều trị là đơn trị liệu chiếm 67,6%. Chủng vi khuẩn phân lập được chiếm tỷ lệ cao nhất là Staphylococcus spp. 31,3%, Streptococcus pneumoniae 16,7%, Klebsiella spp 12,5%, Escherichia coli 10,4%. Kết luận: Kháng sinh được sử dụng nhiều nhất là nhóm beta –lactam, fluoroquinolon. Các vi khuẩn đã đề kháng cao với nhiều loại kháng sinh thường dùng (beta –lactam, fluoroquinolone, macrolide).