bluuebunny/crossref_metadata_2025 huggingface dataset:
Corporate image and loyalty at the primary level of an educational institution in Chilca, 2022
Authors: Camacho-Cuya Martin , Meneses-Claudio Brian , Zarate-Ruiz Gustavo
Published: February 2024

The objective of this study was to determine the relationship between the corporate image and the loyalty of the parents of the Virgen de la Candelaria Private Educational Institution at the primary level, Chilca, 2022. A basic type methodology was used, with a quantitative approach - correlational, non-experimental design. A sample of 100 parents from the private educational institution Virgen de la Candelaria Chilca was used. It was had as results that, there is a 79 % that qualified as a medium level with respect to the corporate image of the institution, also, there is an 83 % of a medium level on customer loyalty. It was concluded that there is a significant relationship between the corporate image with the loyalty of the primary level of an Educational Institution of Chilca, 2022.
Business benchmarking is linked to the sales of companies in the industrial textile sector in northern Lima during the year 2022
Authors: Herrera-Castro Osmar , Meneses-Claudio Brian , Rios-Rios Segundo
Published: February 2024

Currently in Peru, entrepreneurship has forged a large part of the textile sector, increasing this industry and contributing a large part of the national GDP, which benefits Peru since these small businesses contribute to the economic growth of the country. However, during the last few years, the use of commercial and administrative strategies has emerged more frequently, being business benchmarking the one that has generated the greatest impact on the sales of the companies that applied this important administrative tool. Therefore, this research work proposes to describe the link between business benchmarking and sales of textile companies. It was obtained as a result that the business benchmarking variable has a positive impact on the sales of the companies in the textile sector, with a bilateral significance of 0,000<0,005, in addition a correlation coefficient of 0,663 is observed, indicating a high correlation between both variables. As a conclusion in the framework of the present research, we ratify that there is a high, direct and significant compatibility between the studied variables of the business benchmarking and its relation with the sales of the companies.
AUTHOR’S RIGHT TO REVISE CONTRACTUAL PROVISIONS CONCERNING AUTHOR’S FEE
Authors: Vinš Vladimir
Published: February 2024

The right to revise contractual provisions concerning author’s fee exists in instances of „obvious disproportion“ between the stipulated amount of author’s fee and the income/proft which is made based on exploitation of the author’s work in question. Additionally, in some European countries this right is also applicable in cases when the amount of author’s fee has not been agreed upon initially. The party entitled to exercise this right is solely the author, as a contracting party with a weaker negotiating position compared to user of author’s work. By exercising this right, author’s participation in distribution of income/proft arising from economic exploitation of the author’s work becomes more just.
On Human-Nature Relations: The Importance of Malay Adat and Rituals in Protecting the Suhaid River in West Kalimantan, Indonesia
Authors: Suprianto Bibi
Published: February 2024

Many scholars have examined human-nature relations through various frameworks. A few researchers, however, have studied human-nature relations through Malay adat (custom) and rituals concerning the Suhaid river in Kapuas Hulu, West Kalimantan. The purpose of this study is to examine whether the relationship between humans and nature is made significant through Malay adat and rituals that protect rivers. This study uses manuscript data, interviews, and observations in Suhaid of Kapuas Hulu regency in West Kalimantan. The respondents consisted of the head of the Malay traditional court, village religious leaders, and the local Malay community. In addition, researchers also used an anthropological approach to study Malay culture. This study shows that the relationship between humans and nature in the river illustrates: 1) adat and rituals have local values ​​and beliefs which protect rivers; 2) the Suhaid Malay community is concerned with protecting rivers; 3) Malay customary laws aimed at maintaining the relationship between humans and nature were developed as part of a peace treaty between Pangeran Suma Dilaga and the Iban people; and 4) the contemporary relationship between humans and nature in the Suhaid river has been outlined in customary law (hukum adat) and is practiced in the tradition of buang-buang rituals. The researcher's findings highlight the importance of Malay adat and rituals in the conservation of the Suhaid river in West Kalimantan.
From Mosques to Cafes: Muslim Youth and Mawlid Celebration in Yogyakarta
Authors: Wahyudi Muhammad
Published: February 2024

Abstract

The celebration of Mawlid has sparked ongoing discussions among traditionalist and modernist Muslims. Traditionalists perceive Mawlid as a cherished tradition symbolizing joy and love for Prophet Muhammad, passed down through generations. Conversely, modernists often deem it heretical, indicating a societal decline. Within this discourse, an unconventional Mawlid phenomenon has emerged—celebrations hosted in cafes in Yogyakarta, primarily attended by Muslim youth, in contrast to the traditional mosque gatherings of older generations. The Cafe-based Mawlid celebration is characterized by a relaxed atmosphere, humor, simplified lectures, and diverse participation, stand out for their uniqueness. This qualitative, phenomenological study delves into the dynamics of Mawlid celebrations in Yogyakarta's cafes, seeking to unveil the motivations propelling Muslim youth participation. This paper argues that the evolution of Mawlid celebrations, initially confined to mosques and exclusive to traditionalist Muslim groups, has now transitioned to public spaces like cafes, welcoming diverse participants. his shift underscores the dynamic interplay between religious traditions and the changing socio-cultural landscape.

Keywords: Mawlid, Muslim Youth, Social Action, Husein Ja’far
Efficiency Comparison between Conventional and Islamic Rural Banks in Sumatra during the COVID-19 Pandemic
Authors: Akbar Nashr , Ikhwan Ihsanul , Riani Ririn
Published: February 2024

This study aims to examine and compare the efficiency of conventional rural banks and Islamic rural banks in their roles as intermediary institutions during the COVID-19 pandemic in Sumatra, Indonesia. Furthermore, the efficiency determinants were further analysed to find some variables that affect rural banks’ efficiency. Non-Parametric approach, Data Envelopment Analysis (DEA), and Tobit Regression are employed in this study. The results show that Islamic rural banks have better efficiency performance compared to conventional rural banks, but that there is a fluctuating efficiency trend experienced by both types of rural banks during the observation period. In addition, the potential improvement result indicates that financing and operating revenue variables are the main causes of rural bank inefficiency. Furthermore, the Tobit Regression result finds that capital and bank size significantly improve the efficiency level, but that risk significantly reduces bank efficiency.
Estimasi Kualitas Karkas Hidup pada Kerbau Rawa dan Kerbau Sungai dengan Ultrasonografi pada Berbagai Umur
Authors: RVS Veni , Isdoni Isdoni , Tobing Agung S. P. Lumban , Ulum Mokhamad Fakhrul
Published: February 2024

Ultrasonography is a non-invasive diagnostic tool which potential for examining carcasses periodically, cheap, easy, and accurate to demonstrate carcass characteristics, quantity and quality of meat. This study aims to predict the quality of live carcass in swamp buffaloes and river buffaloes based on age and breed by ultrasonography. Ultrasound imaging was carried out with a longitudinal and transverse point of view using a convex transducer with a frequency of 5 MHz and a depth of 180 mm. There were 10 swamp buffaloes and 10 river buffaloes that were grouped into 1-3 years (n = 5) and 3-6 years (n = 5). The result of ultrasound images appears as anechoic images of muscle and hyperechoic images of fat and bone. Carcass analysis used AUSMEAT with the regression y = 0.4546+0.1697 x with R2 of 0.9833 for marbling score and the regression y = - 0.03003+0.4217 x with R2 of 0.9933 for percentage of intramuscular fat showed that swamp buffaloes and river buffaloes aged 3-6 years had the Longissimus dorsi muscle thickness, rump muscle thickness, backfat thickness, rump fat thickness, marbling score and percentage of intramuscular fat were higher than aged 1-3 years (P<0.05). However, analysis of ultrasound images based on breed showed that swamp buffaloes and river buffaloes had the same carcass quality (P>0.05).
Evaluasi Kualitas Nutrien Hydroponic Corn Green Fodder Jagung Putih Sebagai Pakan Ternak Pada Umur Panen Yang Berbeda
Authors: Amaliah Happy Rizqa , Bain Ali , Kurniawan Widhi
Published: February 2024

This study aims to evaluate the effect of differences in harvest age on the characteristics of fodder of corn plants that are maintained hydroponically. This research will be carried out using a completely randomized design (CRD) with 5 treatments and 4 replications, so that the experimental units used are 20 units to get a good harvest time. The treatments used in this study were P1 (Hydroponic growing media at harvesting age of 7 days), P2 (Hydroponic growing media at harvesting age of 9 days), P3 (Hydroponic growing media at harvesting age 11 days), P4 (Hydroponic growing media at harvesting age 13 days), P5 (Hydroponic growing media, harvesting age 15 days). The parameters evaluated were (a) dry weight (BK), (b) organic weight (BO), (c)crude protein content (PK), (d) crude fiber content (SK) and (e) crude fat content (LK). The results revealed that the average dry matter ranged from 12.98–6.27%, while the average organic weight ranged from 96.90–93.52%, the protein content ranged from 23.30–10.14%, the crude fiber content ranged from 2.65–20.28%, and the results of crude fat content ranged from 2.65–2.86%.Based on the results of the study, it can be concluded that hydroponic corn green fodder white corn with different harvest ages can have a significant effect on the production of dry matter, organic matter, crude protein and crude fiber. The best harvest was found in the P1 treatment, namely at 7 days of harvest it was able to produce 23% crude protein content. The longest harvest age (15 days) resulted in the lowest dry matter, organic matter and crude protein content and the highest crude fiber content.
Analisis Pengaruh E-Wom, Brand Attitude dan Trust terhadap Purchase Intention Eco-Friendly Transport di Surakarta
Authors: Firyal Nuzulul Fitri  , Muzakar Isa
Published: February 2024

This research aims to test the analysis of the influence of E-Wom, brand attitude, and trust on purchase intention for eco-friendly transport in Surakarta. The population used in this research are users of eco-friendly transport products in Surakarta. The sample used was users of eco-friendly transport products aged 17 and over, and 309 respondents were domiciled in the Surakarta area. Data analysis with partial least squares (PLS) This study's quantitative data was analysed using 3.0 analysis. The results of the study suggest that electronic word-of-mouth (e-wom) significantly and favourably influences the confidence and perception of the brand among environmentally conscious transportation consumers. Additionally, trust exerts a substantial and favourable influence on the purchase intention of said consumers. Furthermore, the purchase intention is significantly and favourably impacted by brand attitude. Additionally, e-women significantly and positively affect the purchase intent of environmentally conscious transportation consumers,.
Analisis Literasi Keuangan Penggunaan Fintech Payment Bagi Pelaku Usaha UMKM
Authors: Moh. Asep Zakariya Ansori  , M. Wanri Wahyudin  , Neng Ila Nurbaet  , Muhamad Rama Isagozi  , Siti Azkya Diva  , Nadina Amira Zahra  , Guslianti Nur  , Muhammad Yusuf  , Muhammad Tabroni
Published: February 2024

The ability to manage finances well (financial literacy) is very important for micro, small and medium enterprises (MSMEs) to run their businesses. It is hoped that the use of fintech payment services can improve the financial literacy skills of MSME players. This research aims to analyze the level of financial literacy of MSMEs that use fintech payment services. The research was conducted using a qualitative approach through case studies. Data collection using in-depth interviews and observations of 10 MSMEs using fintech in Leuwiliang Bogor. Data analysis uses the Miles and Huberman interactive model. The research results show that the use of fintech helps MSMEs in financial planning, recording transactions, and accessing financial information, and financial literacy shows that it can help MSMEs in good financial knowledge, good financial management for MSME players. Increasing MSME financial literacy such as recording transactions and planning daily expenses. MSMEs already understand because special assistance and training for the use of fintech can improve MSMEs' financial literacy better.
Los medios de comunicación bajo la lupa jurídica del Estado Plurinacional de Bolivia: Promoción de derechos humanos de poblaciones vulnerables con enfoque de cultura de paz
Authors: Martínez Vargas Olga Mary
Published: February 2024

El tránsito de una visión liberal de la comunicación y la información a un enfoque democrático con responsabilidad social, en el marco de un Estado Plurinacional Democrático, conlleva grandes transformaciones en el pensar, ser y hacer de los medios de comunicación que están bajo la lupa jurídica del Estado Plurinacional de Bolivia, que presenta grandes desafíos para las instancias de gestión pública de la comunicación y el cumplimiento de deberes estatales en perspectiva de aportar a la construcción de una cultura de paz a partir del respeto pleno de los derechos humanos. El objetivo consiste en establecer los fines de la normativa jurídica vigente que regula a los medios de comunicación en relación a los derechos a la comunicación y la información de niños, niñas y adolescentes, mujeres, naciones y pueblos indígenas originario campesinos considerados poblaciones vulnerables. Es resultado de un estudio documental exegético, analítico y explicativo que forma parte de una investigación de tesis doctoral sobre el derecho de acceso a la información pública en materia educativa universitaria en Bolivia. Las leyes revisadas, facultan y obligan al Estado Plurinacional de Bolivia, la responsabilidad de implementar estrategias de comunicación para difusión, prevención y promoción de derechos humanos, asumiendo que el primer paso para su ejercicio, defensa y exigibilidad es la información. Este es el motivo que justifica el establecimiento de condiciones normativas legales orientadas a garantizar el ejercicio de los derechos humanos de poblaciones vulnerables, no a restringir la libertad de expresión y tampoco a controlar el trabajo de los medios de comunicación.
Operation of hydropower plants without storage by optimizing the turbine flow. Variations to the optimization model
Authors: Blanco Juan Manuel
Published: February 2024

Flowing water power plants take advantage of the flows that circulate through the river in which they are implanted. They do not have in their design storage systems that allow the accumulation of river flows for later use. They only have the infrastructures necessary for the conduction of flows and their use. These types of plants are designed and automated to operate between certain flow limits, working with "constant head", using the available flows at any given time. The operating limits are set by the "equipment flow", for which the plant is designed, and the "technical minimum flow", which corresponds to the minimum flow value with which the plant can work, and which depends on each turbine type. This article is a continuation of the research carried out and part of the results of which have been presented in previous congresses. They established the optimization algorithms to take advantage of times of low flow level (dry season) to use the plant's channels as a storage element for flow rates below the technical minimum and to subject the plant to sequential emptying/filling cycles of the same channels, thus allowing energy recovery, which we will call operation by "optimal flow". This article intends to analyze the response of the proposed optimization model to variations in both the design and operation of the power plants in which its implementation is possible. The response of the plant to variations in the usable volume in the channels, the minimum time established for the operation of the plant, as well as the hydrological characteristics of the year of application is presented.
Meta: XR-AR-MR and Mirror World Technologies Business Impact of Metaverse
Authors: Yazıcı Ayşe Meriç , Özkan Ayşegül , Özkan Hasan
Published: February 2024

Metaverse offers opportunities for companies to create innovative business models by providing a virtual platform where they can sell products and services and interact with customers in new and unique ways. Extended Reality (XR), Augmented Reality (AR), Mixed Reality (MR) and Mirror World technologies are important technological pathways for the metaverse. The metaverse concept is changing organizational structures with new opportunities and shaping the workforce for the future environment. The purpose of this review article is to discuss the concept of metanomics, the business implications of the metaverse in the context of the economy, business and employee-based value, future workforce, B2B opportunities and new business models. The concept of metaptation was associated with the metaverse in later studies to be conceptualized within the framework of adaptation theory. This review concludes by asserting that as the metaverse continues to evolve, driven by advancements in XR, AR, MR, and Mirror World technologies, it will not only revolutionize traditional business models but also necessitate a new paradigm of metaptation, where businesses must continuously adapt to harness the full potential of the metaverse in the realms of economic growth, innovative B2B opportunities, workforce development, and customer engagement. In order to be successful in this dynamic change process, businesses should adopt a strategic approach to adopting these innovative technologies. These strategic steps of businesses will contribute to gaining competitive advantage by enabling them to make the most of the commercial potential of the Metaverse.
Atlas provisional de los Lepidoptera de la familia Hesperiidae Latreille, 1809, en la provincia de Valladolid (España) (Lepidoptera: Hesperiidae)
Authors: Magro R.
Published: February 2024

Se presenta un atlas provisional de los Lepidoptera de la provincia de Valladolid (España) en cuadrículas UTM de 10 km de lado. Las especies tratadas pertenecen a la familia Hesperiidae Latreille, 1809. También se incluyen comentarios generales relacionados con su fenología y abundancia
Amastus gilvus Köhler, 1924, otro error de rotulado (Lepidoptera: Erebidae)
Authors: Beccacece H. M. , Zapata A. I.
Published: February 2024

En este trabajo se propone un nuevo sinónimo de Amerila bauri Möschler, 1884: Amastus gilvus Köhler, 1924 syn. n. En el rótulo del holotipo♀de A. gilvus, se consignó erróneamente Misiones, Argentina, como lugar de procedencia. El espécimen corresponde a A. bauri, especie de distribución Paleotropical. Se destaca la importancia del correcto asentamiento de datos en los rótulos de los ejemplares depositados en las colecciones biológicas.
Sobre la taxonomía del género Dasypolia Guenée, 1852. Nuevos datos y subgénero para la especie poco conocida de Dasypolia lithophila (Kapur, 1960) (Lepidoptera: Noctuidae)
Authors: Benedek B. , Volynkin A. V. , Cernila M.
Published: February 2024

Se ilustra el espécimen macho y la genitalia de Dasypolia lithophila (Kapur, 1960) y se describe un nuevo subgénero para la especie, Kapuria Benedek, Volynkin & Černila, subgen. n.
Primer registro de Dahlica lichenella (Linnaeus, 1761) para España (Lepidoptera: Psychidae)
Authors: Arnscheid W. R.
Published: February 2024

Se registra por primera vez para España y para la Península Ibérica el psíquido Dahlica lichenella (Linnaeus, 1761) de los alrededores de Benasque (Huesca).
Coleophora proterella Wikström & Tabell, una nueva especie que pertenece al complejo de especies de C. virgaureae (Lepidoptera: Coleophoridae)
Authors: Tabell J. , Wikström B.
Published: February 2024

Coleophora proterella Wikström & Tabell, sp. n. se describe como nueva. La nueva especie es pertenece al complejo de especies de C. virgaureae. De acuerdo a sus estructuras de la genitalia es relativamente próxima a C. obscenella Herrich-Schäffer, 1855, C. virgaureae Stainton,1857, C. cinerea Toll, 1954 y de acuerdo al código de barras del ADN la especie próxima es C. squamosella Stainton, 1856. De la nueva especie proporcionan fotografías de los adultos, genitalia y estuche larvario y el rango de distribución conocida.
Mariposas frugívoras en el bosque Atlántico del Parque Nacional de Iguazú, Paraná, Brasil (Lepidoptera: Nymphalidae)
Authors: Graciotim C. , Morais A. B. B.
Published: February 2024

Mariposas frugívoras fácilmente capturadas con trampas de cebo, pueden ser usadas en estudios ecológicos comparativos, a través de un protocolo de muestreo. Por lo tanto, el estudio actual compara la agrupación de dos fitofisionomías del Bosque Atlántico del Parque Nacional de Iguazú: Bosque Semicaducifolio (FES) y bosque de Araucaria (FOM) en relación con la abundancia, riqueza y composición de especies. El trabajo de campo fue llevado a cabo mensualmente entre noviembre de 2012 y mayo de 2013, usando trampas Van Someren-Rydon con cebo de plátano aplastado, en jugo de caña de azúcar fermentado. Por cada fitofisionomía, usamos 15 trampas en transectos predefinidos que fueron revisadas cada 24 horas, durante cinco días por cada muestra. Al final de seis muestreos y 900 trampas/día del esfuerzo total, fueron registrados 1.127 individuos representando 69 especies y 4 subfamilias de mariposas frugívoras. Los Satyrinae son la subfamilia más abundante y con la mayor riqueza de especies. Considerando la abundancia de especies, 604 (52.54 % de los individuos) fueron colectados en FES, mientras que 523 (47.46 %) en FOM. El índice de rareza muestra la riqueza de especies significativamente mayor en FES con 65 especies observadas mientras que en FOM se observa 55. Las curvas de acumulación de especies no llegaron a la asíntota para cada fitofiosionomía. De forma similar, el cálculo analítico de la estimación de riqueza Jacknife 1 y Bootstrap, mostraban valores más altos que la abundancia probada en ambas áreas, valores que podrían alcanzarse con un mayor esfuerzo de muestreo. Treinta y ocho especies son nuevos registros para el Parque Nacional de Iguazú. Sólo una especie por cada fitofisionomía fue dominante, siendo Memphis moruus stheno (Prittwitz, 1865) en FES y Pareuptychia summandosa (Gosse, 1880) en FOM. Los resultados obtenidos demuestran que las mariposas frugívoras del Parque Nacional de Iguazú tienen una abundante composición y riqueza de especies. Además, combinando con otros estudios locales y regionales, generarán información para la conservación y protección del medio ambiente y el mantenimiento de áreas reservadas para la protección de la biodiversidad.
Élaboration d’une ressource d’information à l’intention des survivantes d’un cancer gynécologique et de leurs proches aidants : exposé sur le vécu et les méthodes
Authors: Galica Jacqueline , Silva Amina , Robb Kathleen
Published: February 2024

Le présent article fait ressortir la nécessité de mieux informer les survivantes de cancer gynécologique (CG) et leurs proches aidants. Il vise à décrire le partenariat établi entre les patientes, les cliniciens et les chercheurs pour concevoir une ressource d’information fondée sur l’expérience et les données probantes. L’élaboration de cette ressource d’information a fait appel à plusieurs méthodes de recherche. Elle s’est déroulée en cinq étapes : 1) réunion de l’expertise nécessaire; 2) revue de la littérature; 3) ébauche de la ressource; 4) mise à l’essai; 5) diffusion de la ressource. La diversité des partenaires apportait l’expertise nécessaire à l’utilisation de multiples méthodes de recherche ayant produit des résultats utiles à chaque étape. Grâce à cette combinaison (partenariat diversifié et multiples méthodes de recherche), on a élaboré une ressource utile pour répondre à un manque observé par les utilisateurs des connaissances. La combinaison des caractéristiques décrites dans le présent article vient combler une lacune dans la procédure utilisée par les cliniciens et les chercheurs désireux d’élaborer des ressources d’information fondées à la fois sur l’expérience et la pratique.
O Uso da Inteligência Artificial no Schema Matching: Um Mapeamento Sistemático
Authors: Borges Ricardo H. D. , Ribeiro Leonardo Andrade , Neto Valdemar V. Graciano
Published: February 2024

Com a crescente complexidade da integração de dados devido ao aumento em sua quantidade e diversidade, o Schema Matching desempenha um papel fundamental. Nesse cenário desafiador, a Inteligência Artificial (IA) surge como uma solução promissora para aprimorar a eficiência do Schema Matching. Este artigo apresenta os resultados de um mapeamento sistemático da literatura, investigando as técnicas e algoritmos de IA mais utilizados em aplicações de Schema Matching. Os insights obtidos oferecem orientação valiosa para pesquisadores e profissionais que buscam aprimorar a integração de dados por meio do Schema Matching.
Comparação de modelos de classificação de categorias de acidentes nas rodovias federais
Authors: Oliveira Luis E. , Borges André P.
Published: February 2024

Este trabalho é resultado da aplicação de algoritmos de aprendizado de máquina em dados da PRF, com o objetivo de antecipar um tipo de acidente. As informações originais foram enriquecidas com informações sobre pedágios, radares e feriados. Foram realizados 32 testes com combinações diferentes de algoritmos e seus parâmetros nos dados. Os resultados sugerem que ainda seriam necessários mais insumos para enriquecer os dados e atingir taxas de acurácia mais elevadas.
Análise Quantitativa Preliminar de Métodos de Reamostragem de Imagens Digitais Aplicáveis a Diferentes Tipos de Formas Geométricas
Authors: Falandes Carlos Eduardo , de Carvalho Fabrício Galende Marques
Published: February 2024

Esse trabalho trata de uma análise quantitativa e qualitativa preliminar de métodos clássicos de reamostragem, tais como a interpolação por vizinho mais próximo, a bilinear e a bicúbica. A avaliação que foi realizada tem como enfoque ilustrar como esses métodos impactam na qualidade dos contornos das formas geométricas após a realização da reamostragem. Essa análise é motivada pelo fato de que a perda de qualidade da imagem pode afetar significativamente o casamento de padrões executado em um processo típico de registro de imagem. Os métodos foram analisados utilizando-se métricas de Relação Sinal-Ruído de Pico, Erro Quadrático Médio e Coeficiente de Correlação.
O produto forte de um grafo não trivial e o grafo completo possui 2- e 3-atribuição de papéis
Authors: Medeiros Gustavo Morais , Nascimento Julliano Rosa
Published: February 2024

Seja G um grafo simples e r um inteiro positivo. Com aplicações em análise de redes sociais, uma r-atribuição de papéis é uma atribuição de r papéis distintos aos vértices de G, tal que dois vértices com o mesmo papel têm o mesmo conjunto de papéis nos vértices adjacentes. Sabe-se que o problema de decidir se um grafo arbitrário G possui uma r-atribuição é NP-completo para r ≥ 2, e há poucos resultados na literatura sobre esse problema para produtos de grafos. Nesse aspecto, apresentamos um algoritmo linear para determinar 2- e 3-atribuição de papéis para o produto forte entre um grafo não trivial G e Kn, n ≥ 2, do qual concluímos que o produto forte entre G e Kn sempre possui 2- e 3-atribuição de papéis.
Detecção de Pólipos em Imagens de Colonoscopia utilizando Aprendizado Profundo
Authors: Xie Diene , Rosa Larissa S. X. , P. Filho Vilmar C. , Cardoso Alisson A. , Franco Ricardo A. P.
Published: February 2024

Este artigo propõe realizar um estudo de detecção de pólipos em imagens de colonoscopia utilizando modelos neurais profundos de detecção de objetos. Para isso, uma revisão de trabalhos na literatura é realizada, onde modelos mais recentes de detecção de objetos são utilizados. Resultados em termos de precisão, recall, mean average precision (mAP) e score F1 são apresentados. Os resultados obtidos indicam que os modelos treinados para a detecção de pólipos no dataset Kvasir apresentaram resultados superiores em relação aos obtidos na literatura, mostrando que esses modelos podem ser um poderoso aliado na medicina no auxílio da detecção de pólipos.
Cluster Catastronomy - Ryzen HPC Development
Authors: Vieira Welison C. , Rabelo Marcos N. , Moreira Nilton L.
Published: February 2024

This project, supported by the "Instituto Professor João Margon Vaz," aims to develop a High-Performance Computer, inspired by the renowned "Pegasus IV Project" from University of Science and Technology of Missouri. Our primary objective is to provide computational resources for students and educators engaged in analytical and simulation-based research. Our targets are students from underprivileged backgrounds, who often lack access to greater computing power for complex simulation. Utilizing AMD Ryzen processors, unlike Pegasus’s Intel architecture, this pioneering "Cluster Catastronomy," is diskless assembled and have many technology upgrades compared to S&T HPC.
Um Modelo Declarativo para Gestão de Riscos em IoT
Authors: Lento Luiz Otávio B. , Patinho Pedro , Abreu Salvador
Published: February 2024

Um grande problema em ambientes IoT é garantir a segurança em todos os serviços e dispositivos. A diversidade de ameaças, em conjunto com a falta de preocupação da maioria de seus administradores e projetistas dos dispositivos, tornou o ambiente de rede IoT vulnerável. Este artigo apresenta o RTRMM, um modelo de gerenciamento de riscos de segurança baseado em lógica para ambientes IoT, que prevê os riscos e visa gerenciá-los em tempo real, tornando o ambiente IoT mais confiável. Faz uso de probabilidade, lógica difusa e programação em lógica para implementar as suas funcionalidades.
A Continuous Heart-Based Biometric Authentication for Healthcare Internet of Things
Authors: Soares Laura R. , Bastos Lucas , Martins Bruno , Medeiros Iago , Rosário Dênis , Nobre Jéferson C. , Cerqueira Eduardo C.
Published: February 2024

The rapid spread of connected objects in healthcare environments, i.e. Healthcare Internet of Things (HIoT), has motivated concerns on data privacy. Thus, security mechanisms are required to restrict access to such data. Biometrics, measurements, and calculations related to human characteristics can be collected from the target biosignal (e.g., electrocardiogram - ECG) and employed for authentication. This work investigates a continuous heart-based biometric authentication system for HIoT. We propose a system to provide authentication mechanisms mainly targeted at preserving users’ privacy and respecting low cost and scalability. This system employs fiducial features from Electrocardiogram (ECG) to produce a security token that corresponds to the user’s identification. We evaluate our system through simulation experiments performed using a Proof of Concept (PoC) implementation and ECG samples from an open database. In these experiments, it is possible to observe the feasibility of our proposal as well as its desirable properties.
Detecção de Botnets em Dispositivos IoTs baseado em LSTM Autoencoder
Authors: Maciel Caio , Neira Anderson B. de , Borges Ligia F. , Nogueira Michele
Published: February 2024

Com a ascensão da Internet das Coisas, atores maliciosos exploram brechas para a criação de redes infectadas por softwares (a.k.a, botnet). As botnets geram uma série de ameaças à segurança dos serviços. Soluções existentes especializam-se em cenários de ataques. Isto diminui a eficácia em cenários sem ataque, aumentando o número de detecções incorretas, gerando mais custos computacionais e retrabalho. Para resolver isso, este trabalho emprega o LSTM Autoencoder em conjunto com a técnica de voto majoritário. A proposta melhora o desempenho em cenários com e sem ataques de botnets, diminuindo o número de falsos positivos e evitando custos. Resultados preliminares indicam uma acurácia de 99,42% na detecção de botnets, superando a atual literatura.
Abordagem de Aprendizado Incremental para Sistemas de Detecção de Intrusão: Combatendo o Esquecimento Catastrófico
Authors: Lemos Rafael S. , Gomes Francisco J. , Souza Carlielson D. , Mattos César L. C. , Neto José D. C. , S. Filho Jarelio G. da , Freitas Nicksson C. A. de , Costa Rodrigo C. S. , Rodrigues Emanuel B.
Published: February 2024

Com o aumento do armazenamento de dados empresariais no ambiente digital, cibercriminosos são atraídos e podem causar sérios prejuízos. Nesse contexto, Sistemas de Detecção de Intrusão são ferramentas utilizadas para detecção de ataques cibernéticos. Atualmente, esses sistemas têm empregado modelos tradicionais de aprendizado de máquina. No entanto, tais modelos exigem retreinamento periódico com toda base de dados, permitindo a detecção de novas técnicas de intrusão. Neste trabalho, propõe-se o uso de aprendizagem incremental para incluir o conhecimento de novos padrões de ataque sem a necessidade de retreinar o modelo do início e não sofrer com o esquecimento catastrófico. Para este fim, foi desenvolvida uma metodologia de aprendizagem incremental, do tratamento dos dados à construção e avaliação dos modelos finais. Os resultados experimentais demonstram que o modelo construído aprendeu novos ataques sem esquecer o que já havia aprendido. As métricas finais obtidas de precisão, revocação e F1-score foram acima de 87% e uma acurácia de 98,89% foi alcançada.
Impacto da criptografia da camada de transporte em análises de fluxos com aprendizado de máquina
Authors: Magnus Tiago de Carvalho , Nobre Jéferson de Campos
Published: February 2024

Com o aumento no uso da criptografia nas comunicações de redes de computadores, é possível que, no futuro, a criptografia dos protocolos da camada de transporte se torne algo comum, o que pode dificultar ou tornar menos eficiente a análise automatizada de fluxos de rede. Este artigo propõe e implementa uma análise sobre o impacto dessa possível criptografia em análises de fluxos com aprendizado de máquina. Os resultados mostraram que a criptografia dessa camada da rede poderia afetar a análise de fluxos de rede. Os conceitos de explicabilidade e interpretabilidade foram utilizados para avaliar a qualidade dos resultados.
Explaining the Effectiveness of Machine Learning in Malware Detection: Insights from Explainable AI
Authors: Bragança Hendrio , Rocha Vanderson , Souto Eduardo , Kreutz Diego , Feitosa Eduardo
Published: February 2024

We use Explainable Artificial Intelligence (XAI) to understand and assess the decisions made by ML models in Android malware detection. To evaluate malware detection, we conducted experiments using seven datasets. Our findings indicate that it is possible to accurately identify malware across multiple datasets. However, each dataset may have a different collection of features available. We also discuss the implications of incorporating expert-dependent features into the malware detection procedure. Such features have the potential to increase model accuracy by detecting minor indicators of harmful behaviour that automated algorithms may miss. However, because of the necessity for in-depth manual analysis, this strategy increases the resource and time requirements. It also risks adding human bias into the models and raises scaling issues in the continuously developing Android application landscape. Our results suggest that XAI techniques should be used to help malware analysis researchers understand how ML models work, rather than only concentrating on increasing accuracy.
Uma Abordagem para Detecção Automática de Fraudes em Aplicativos de Mensagens Instantâneas
Authors: Nascimento Alexsandro , Gadelha Thiago , Monteiro José Maria , Machado Javam
Published: February 2024

Os aplicativos de troca de mensagens instantâneas possibilitam uma comunicação simples e eficiente. Contudo, eles também propiciam a disseminação em massa de ameaças cibernéticas, tais como as fraudes financeiras. Neste contexto, a rápida e efetiva detecção de fraudes veiculadas em textos compartilhados nesses aplicativos torna-se de fundamental importância para evitar prejuízos financeiros. Este trabalho apresenta dois conjuntos de dados rotulados e disponíveis publicamente, formado por mensagens em português do Brasil (PT-BR) coletadas de grupos públicos do WhatsApp e Telegram, respectivamente, contendo mensagens fraudulentas, os quais foram denominados FraudWhatsApp.Br e FraudTelegram.Br. Adicionalmente, conduzimos uma série de experimentos de classificação de texto, combinando dois diferentes métodos de extração de atributos, três diferentes estratégia para geração de tokens, duas formas de pré-processamento e nove algoritmos de classificação para discriminar os textos em duas categorias: textos fraudulentos e não fraudulentos. Nossos melhores resultados alcançaram uma pontuação F1 de 0,99 tanto para FraudTelegram.Br quanto para o FraudWhatsApp.Br, comprovando a viabilidade da abordagem proposta.
Etablierung einer semi-kompetitiven Autokratie in der Türkei: Die Präsidentschafts- und Parlamentswahlen vom 14. und 28. Mai 2023
Authors: Tokatlı Mahir
Published: February 2024

The parliamentary and presidential elections in Turkey of May 14, 2023, were considered crucial . Contrary to pollsters’ predictions, the expected swing did not materialize, and the AKP secured an absolute parliamentary majority through a well-crafted electoral alliance, despite losing a significant number of votes . The opposition emerged as the loser in both elections because it was unable to present itself as a real alternative to the AKP and to unite the entire opposition . These elections have led to a debate on the typology of the Turkish regime . Terms such as “competitive” and “closed autocracy” are in circulation . This makes it clear that the issue is no longer the status of autocracy, but rather its degree . While in com- petitive autocracies, despite unequal conditions, elections are still meaningful and can lead to change, these prospects seem to be minimized by the interventions of the ruling party . In Turkey, elections take place under legally and substantively unequal conditions, so the term “semi-competitive autocracy” seems more appropriate .
Die spanischen Parlamentswahlen vom 23. Juli 2023 und die Wiederkehr der Territorialfrage
Authors: Pfeiffer Christian , Werz Nikolaus
Published: February 2024

From 2020 to 2023, Spain was governed for the first time since the Second Republic (1931 – 1939) by a coalition of the Partido Socialista Obrero Español (PSOE) and the left-wing alliance Unidas Podemos (UP) . Despite, or perhaps because of, their intense legislative work, the political divide between the government and the right-wing opposition deep- ened . In the regional and municipal elections on May 28, 2023, the ruling coalition suf- fered a defeat, leading Prime Minister Pedro Sánchez to call for national elections on July 23, 2023 . The conservative Partido Popular (PP) under Alberto Núñez Feijóo emerged as the strongest force from these elections . However, despite their victory, the PP was unable to form a government majority . Subsequently, the PSOE succeeded in forming a government again, in cooperation with the left-wing alliance Sumar and with the tolerance of various parties, some of which were separatist . This government formation was contingent upon a new and controversial amnesty law, which was crucial for the support of the parties of so-called peripheral nationalism in the election of Sánchez in Parliament . As a result, the political atmosphere in Spain has further deteriorated .
Die Schweizerische Bundesversammlung: Ein Parlament in einer Konsensdemokratie
Authors: Lüthi Ruth
Published: February 2024

The political system of Switzerland is a decentralized, federalist, multiparty-system in which power-sharing plays an important role . The separation of powers is strong, so that Parlia- ment (Federal Assembly) assumes its functions independently from the executive . The Fed- eral Assembly, consisting of the National Council and the Council of States, plays an important role especially in the law-making process . The Parliament can debate and change every single article of a bill . Different alliances between the different parties supporting the proposals of the government or not can occur even during one single law-making process . The election of the members of the executive by the Parliament also enforces the position of the latter . In the second part of the last century different reforms improved the parliamen- tary instruments and procedures . Therefore, the Federal Assembly is now able to profit from its strong position in the political system and to influence the political decision pro- cesses in a considerable way . In the complex processes of the bicameral system, the mem- bers of Parliament have many opportunities to build alliances to influence the decisions . However, it is necessary that they are willing and able to make deals with members of other parties .
Überprüfung von Fahrzeugen und Fahrzeugführern
Authors: Daubner Robert
Published: February 2024

Handliche Hilfe Mit dem topaktuellen Praxisbuch erhalten Polizeibeamtinnen und -beamte in konzentrierter Form wichtige und immer wieder benötigte Informationen für die Überprüfung von Fahrzeugen und Fahrzeugführern. Die Themenbereiche ... ... des Praxisbegleiters sind u.a.: Fahrerlaubnisrecht Kontrolle von Fahrzeugen Verkehrsstraftaten wie z.B. §§ 142, 315b, 315c, 316 StGB Beschaffenheit von Fahrzeugen Die 13. Auflage des Leitfadens berücksichtigt die Änderungen in der FZV zum 1.9.2023. Mit übersichtlichen Checklisten Die komplizierten und sich häufig ändernden Vorschriften des Verkehrsrechts sind in übersichtlichen Checklisten zusammengefasst. Diese geben den Polizeivollzugsbeamtinnen und -beamten der Verkehrsüberwachung und -kontrolle die nötige Sicherheit, wenn sie vor Ort entscheiden müssen.
Der französische Film
Authors: Brandlmeier Thomas
Published: February 2024

Das französische Kino war für die internationale Filmgeschichte von Anfang an zentral und prägend. Bis heute gilt Film in Frankreich als nationales Erbe, das mehr als in anderen Ländern gepflegt und gefördert wird. Große Namen sind damit verbunden: die Brüder Lumière, Georges Méliès und Alice Guy, die Unternehmer Gaumont und Pathé, große Komiker wie Tati oder Louis de Funès, die frühe und späte Nouvelle Vague mit Agnes Varda, Jean-Luc Godard, Francois Truffaut und anderen, Blockbuster-Regisseure wie Mathieu Kassovitz und Luc Besson – und, vor allem seit der Jahrtausendwende, eine Welle innovativer Regisseurinnen wie zuletzt Julia Ducournau. Der Band bietet einen ebenso umfassenden wie subjektiven Überblick: eine Filmgeschichte als Geschichte, im Sinne von Godards "Histoire(s) du Cinéma", ein populärwissenschaftlicher Parforceritt für alle, die die Liebe zum französischen Kino teilen.
Establishing Long-Term Haemodialysis Vascular Access with Permcath in Children with Chronic Kidney Disease: A Single-Centre Retrospective Analysis
Authors: Peng Shuting , Yang Fang
Published: February 2024

Background: In some regions, the types and sizes of tunneled central venous catheters (CVCs) are limited. Objective: The objective of this study was to review our experience with 10F Quinton Permcath catheters used for long-term vascular access in children of various ages and weights with chronic renal failure. Methods: Children with renal failure on maintenance hemodialysis who underwent placement of the 10F Quinton Permcath between June 2017 and June 2023 at the First Affiliated Hospital of Jinan University were included. We collected clinical data from children with the Permcath, including patients' gender, age, weight, and height. Additionally, data on catheter-related complications were gathered. Imaging data of the patients were obtained to compare the catheter route on imaging and the position of the catheter tip in each case. This enabled an analysis of the characteristics of vascular access establishment and its correlation with catheter-related complications in 11 children implanted with 10F Quinton Permcath. Results: Among the 11 children on maintenance hemodialysis with catheters, five were male, and six were female, with a median age of 9 years (range 8 - 10). The median body weight of the included patients was 23.00 kg (range: 19.95 - 24.30 kg). Eight cases involved placement in the right internal jugular vein (IJV), with the catheter tip located at the level of T8 in two cases, T5 in one case, and T7 in the remaining cases, with no early catheter dysfunction. Three patients underwent catheter placement in the left IJV, with the catheter tip located at the level of T5, T4, and the T7/T8 intervertebral space, respectively, and two cases of early catheter dysfunction occurred in two patients. There were no acute complications in the 11 cases following catheter insertion. Conclusions: Whenever feasible, the right IJV should be the preferred choice for establishing vascular access for the 10F Quinton Permcath in children with chronic kidney disease, regardless of age and weight. The tunnel route and catheter length within the tunnel can be adjusted to ensure the appropriate placement of double-lumen tunnelled cuffed catheters (TCC).