bluuebunny/crossref_metadata_2025 huggingface dataset:
Cavitating flow through a Venturi using CFD: effects of inlet and outlet pressures
Authors: Benghalia Imane , Boucetta Rachid , Zamoum Mohammed
Published: October 2024

Hydrodynamic cavitation is a complex physical phenomenon that appeared in hydraulic systems (pumps, turbines, valves, Venturi tubes …etc.) when the fluid pressure decreases below the saturated vapor pressure. The works carried out in this study aimed to get a better understanding of the cavitating flow phenomenon. For this, we have numerically studied a cavitating bubbly flow through a venturi nozzle. The cavitation model is selected and solved using commercial code computational fluid dynamics (CFD). The numerical results are compared to the previous experimental and numerical data.The obtained results showed that the effect of the inlet pressure (10, 7, 5 and 2 bars) and outlet pressures (6.5, 6, 5, 4, 3.5, 1.5, and 1 bars) of the Venturi on pressure, velocity of the fluid flow and the vapor fraction formation. We found that the inlet and outlet pressures of the venturi are strongly affected on the evolution of the pressure, velocity and vapor fraction formation in the cavitating flow. The results presented in this study provide insight and useful guidance to the designer of hydrodynamic cavitation devices, identifying key geometrical and physical parameters of cavitation onset and intensification that can be manipulated to achieve the desired level of cavitation flow.
Avances recientes para la obtención sostenible de biopolímeros a partir de almidones: una revisión
Authors: Pilco Carlos Rodrigo Jacome , Magaly García Carrasco Sandra , Alexis Chela Tiamba Joan , Luis Altuna José
Published: October 2024

En Ecuador, los tubérculos son una parte integral de la dieta familiar. Sin embargo, anualmente se desperdician 46,000 toneladas debido a prácticas inadecuadas postcosecha y a la falta de diversificación. El almidón derivado de los tubérculos tiene numerosas aplicaciones industriales y es crucial para la economía y la sostenibilidad. En particular, el almidón de la papa, que representa entre 15% y 20% de su peso, es vital para la producción de biopolímeros debido a su contenido de amilopectina. Dada la escasez de estudios específicos sobre el almidón de variedades locales de papa en Ecuador, se ha propuesto la extracción y caracterización del almidón de la variedad Leona Blanca. Este proyecto pretende reducir las pérdidas postcosecha y examinar su potencial industrial. En el contexto ecuatoriano, la papa es un cultivo esencial tanto a nivel alimentario como económico, constituyendo el 4% del PIB agrícola y generando 84,000 empleos en 2015. A pesar de su valor nutritivo, los agricultores enfrentan desafíos como la sobreproducción y los bajos precios. Los biopolímeros derivados del almidón, incluyendo envases biodegradables y utensilios desechables, ofrecen una alternativa sostenible a los plásticos convencionales, ayudando a disminuir los residuos plásticos y fomentando una economía circular. La investigación en el campo de los biopolímeros busca mejorar sus propiedades y reducir los costos, haciendo estos materiales más competitivos y ecológicos. Un enfoque centrado en la sostenibilidad y la viabilidad económica es esencial para maximizar los beneficios de esta tecnología innovadora y sostenible.
Study of a non-linear Volterra integro-differential equation with a non-linear unknown source term
Authors: Karek Mohamed , Lemita Samir , Zennir Khaled , Bouhali Keltoum
Published: October 2024

In this paper, we propose a new class of integro-differential nonlinear Volterra equations with a non-linear unknown source term. Our study focuses on both theoretical analysis and numerical approximation of solutions to these equations. In the theoretical analysis partition, we define the specific assumptions on the integral kernel's characteristics, on the source term function and also on the derivative of the solutions of equations, under which the Krasnoselskii's fixed point theorem can be applied and in order to ensures the existence and uniqueness of solutions to the proposed integro-differential equations. In the numerical approximation partition, we use a well-known numerical technique for solving integral equations called Nyström method. This method allows us to get an approximate solutions of the proposed equations. Furthermore, we provide some illustrative examples and according to the numerical method described in this paper we approach them, where the comparison results between the exact and approximate solutions of these examples confirm the effectiveness of the numerical Nyström method for approaching the solutions of this class of integro-differential equations.
Enhanced facial expression recognition using transfer learning and M-CLAHE
Authors: Lahcene Mohamed Rida , Bendelhoum Mohammed Sofiane , Ilyas Bendjillali Ridha , Boukenadil Bahidja , Miloud Kamline
Published: October 2024

In recent years, Facial Expression Recognition (FER) techniques have gained substantial attention within the realm of biometric technology due to their wide range of applications, including emotion analysis, human-computer interaction, and surveillance systems. This paper presents a robust and efficient FER system composed of three key steps. First, precise face detection is performed using the Viola-Jones algorithm, a well-established method for detecting facial features in real-time. Second, the detected images are enhanced using a Modified Contrast Limited Adaptive Histogram Equalization (M-CLAHE) technique to improve contrast and visibility. Finally, feature extraction and classification are carried out using three powerful Convolutional Neural Network (CNN) architectures: VGG16, ResNet50, and Inception-v3, all benefiting from Transfer Learning to boost performance. Experiments were conducted on two widely-used datasets, JAFEE and CK+, with Inception-v3 achieving remarkable accuracy, reaching 98.43% and 99.93% on the respective databases. These results underline the effectiveness and robustness of our approach, particularly through the use of Transfer Learning, which significantly enhances the overall performance of the model compared to existing methods.
Propriedades físicas e calor específico de cultivares de soja sob diferentes teores de água
Authors: Cunha Fernando Nobre , Resende Osvaldo , Vidal Vitor Marques , Morais Wilker Alves , Silva Nelmício Furtado da , Quequeto Wellytton Darci
Published: October 2024

Objetivou-se com este estudo determinar as propriedades físicas de três cultivares de soja em diferentes teores de água obtidos pelo reumedecimento da massa de grãos. O delineamento experimental foi inteiramente casualizado, em esquema fatorial 3 x 6, em triplicata, sendo três cultivares de soja (C1: 6266RSFIPRO, C2: BMX Potência RR e C3: 14403Z6001); e seis teores de água (11, 13, 15, 17, 19 e 21% b.u.). Os teores de água foram obtidos mediante a adsorção em ambiente controlado (B.O.D). As características avaliadas foram: o ângulo de repouso, calor específico, massa específica aparente, massa específica real e porosidade. As propriedades físicas são influenciadas pelas cultivares e pelo teor de água dos grãos de soja. A porosidade intergranular, ângulo de repouso e calor específico aumentam, enquanto a massa específica aparente e massa específica real diminuem com o aumento do teor de água. A cultivar BMX Potência RR (C2) apresenta as melhores propriedades físicas, seguido da cultivar 6266RSFIPRO (C1) e da cultivar 14403Z6001 (C3). O ângulo de repouso apresenta uma alta correlação com o calor específico, a massa específica aparente e massa específica real.
A importância do aleitamento natural para o crescimento e desenvolvimento craniofacial
Authors: Oliveira Carla Barion de , Leite Felipe de Brito , Lorenzzoni Larissa de Santana , Bortolloci Niquelle Lorena , Araújo Cíntia de Souza Alferes , Zardeto Giuliana , Ceranto Daniela Cássia Faglioni Boleta , Melo Patrícia Gizeli Brassali de
Published: October 2024

Este artigo revisa a literatura científica sobre os benefícios do aleitamento materno, com foco em seu impacto no crescimento e desenvolvimento craniofacial e na prevenção de más oclusões e hábitos deletérios. A amamentação natural envolve movimentos específicos da mandíbula, como protrusão e retrusão, que são fundamentais para o crescimento ósseo e muscular, prevenindo retrognatismo fisiológico. Em contraste, a alimentação por mamadeira, que depende de pressão negativa e exige menos movimentos mandibulares, pode resultar em padrões de sucção inadequados, contribuindo para maloclusões e distúrbios miofuncionais. Além dos benefícios orofaciais, a amamentação exclusiva nos primeiros seis meses de vida está associada à redução de infecções, promoção de saúde geral e fortalecimento do vínculo entre mãe e filho. A literatura destaca a importância de prolongar a amamentação e desestimular o uso de chupetas e mamadeiras para garantir um desenvolvimento orofacial saudável. Profissionais de saúde desempenham um papel crucial na orientação e apoio às mães, promovendo práticas preventivas que assegurem o correto desenvolvimento das estruturas faciais das crianças. Embora os benefícios do aleitamento materno sejam amplamente reconhecidos, mais pesquisas são necessárias para aprofundar o entendimento sobre a extensão desses efeitos e garantir que as intervenções sejam eficazes na prevenção de desordens orofaciais.
Desempenho agronômico de consórcio cebola e alface em diferentes níveis de sombreamento sob manejo orgânico
Authors: Alves Francielly Quitéria Guimarães , Mota Wagner Ferreira da , Donato Luan Mateus Silva , Silva Márcio Marques da , Santos Lívian Patrícia da Silva , Silva Fabiano Cordeiro , Santos Helena Souza Nascimento , Santos Neto José Augusto dos , Oliveira Gevaldo Barbosa de
Published: October 2024

A realização da agricultura sustentável pode ser realizada com o cultivo consorciado de hortaliças, além disso, a utilização de um sombreamento e em ambiente orgânico podem ser praticas aliadas e promissoras. Assim, objetivou-se avaliar o rendimento agronômico e a qualidade de alface e cebola consorciadas em diferentes níveis de sombreamento sob manejo orgânico. O experimento foi realizado nos meses de março a agosto, disposto em esquema de parcelas subdivididas, tendo nas parcelas um fatorial 2x2, e nas subparcelas os 5 níveis de sombreamento, dispostas em blocos ao acaso com quatro repetições. Nas subparcelas foram avaliados cinco níveis de sombreamento (18, 30, 50%, agrotêxtil e testemunha), e nas parcelas foram avaliadas duas cultivares de cebola (Texas Early Grano 502 e Baia Periforme) e duas de alface (Veneranda e Grand Rapids TBR). As cultivares de alface não influenciaram na produção de cebola. Os sombreamentos de 18% e testemunha proporcionaram melhores produções para a alface. A cultivar Texas Grano apresentou melhor desempenho em consórcio com a alface, com maior produção em todos os sombreamentos. O excesso de sombreamento interfere na produção dos bulbos da cebola. O cultivo orgânico sem sombreamento é mais viável, proporcionando maiores produções comercial e total. O cultivo a céu aberto proporciona melhor desenvolvimento da cebola e alface em consórcio.
Estudo sobre leitores de código de barras para o processo de montagem do kit de acessórios dos condicionadores de ar
Authors: Gomes Alan Júnior Lopes , Nascimento Carlos Wagner Alves do , Silva César Augusto Mota da , Gouvea Nelson Alexandre , Shishido Alan Hideyuki , Nascimento Breno Lucas dos Santos , Bernardo Ivana do Nascimento , Santos Leonardo Morgado dos , Moura Ricardo da Silva , Garcia Lucas Harrison Grana
Published: October 2024

Este artigo detalha um estudo sobre a proposta de uma arquitetura de leitores de códigos de barras destinado a otimizar o processo de montagem dos kits de acessórios de condicionadores de ar na LG Electronics, no polo industrial de Manaus. O objetivo é aperfeiçoar o controle e aumentar a eficiência operacional em todas as fases da cadeia de suprimentos, desde a embalagem até a entrega final ao cliente. Adotando um método de pesquisa exploratória, o estudo empregou observação e análise de dados para projetar uma arquitetura que melhore o rastreamento de produtos. A colaboração entre a LG Electronics e a FPFtech Manaus levou ao desenvolvimento desse estudo integrando tecnologias avançadas como leitores de códigos de barras Keyence SR-X100, CLPs, protocolo ModBus, além de plataformas de desenvolvimento como frameworks Django e Angular e Gerenciador de Banco de Dados PostgreSQL. Este estudo evidencia a importância da tecnologia para a otimização da cadeia de suprimentos e abre caminho para futuras investigações em automação e aprimoramento de processos. Além disso, destaca o potencial das inovações tecnológicas para impulsionar a eficiência operacional e a satisfação do cliente na indústria manufatureira, sugerindo a LG Electronics e seus parceiros como pioneiros na adoção de soluções tecnológicas inovadoras no setor industrial de Manaus.
Medicinas alternativas e complementares no currículo de medicina: um protocolo de revisão de escopo
Authors: Suzin Joseli Beatriz , Campos Neta Ana Maria Pedroso de , Batista Nildo Alves
Published: October 2024

Objetivo: Apresentar um protocolo de revisão de escopo para identificar e mapear as evidências possíveis sobre o que tem sido publicado no que diz respeito ao ensino das Medicinas Tradicionais Integrativas e Complementares (MTIC) no currículo da graduação de medicina. Método: Este protocolo está em conformidade com o manual do Instituto Joanna Briggs e com as diretrizes PRISMA- ScR, para relato de protocolos de revisão. Foi registrado na Open Science Framework. A busca será feita na base de dados Scielo, Literatura Latino-Americana e do Caribe em Ciências da Saúde (LiLACS), Embase, Scopus, PubMed/MedLine, e Web of Science. Posteriormente, dois revisores investigarão, pelo título e resumo, os critérios de elegibilidade e a partir dos artigos selecionados será feita a leitura na integra. Resultados Preliminares: A busca inicial a partir das bases de dados escolhidas mostra um quantitativo de 163 artigos no Scielo a 4.640 artigos na Web of Science, já apontando uma frequência considerável e diversificada de publicações relacionadas com esta temática. Isto já nos aponta para a relevância desta revisão. Considerações Finais: Acreditamos que este protocolo possa orientar metodologicamente a presente revisão e, assim, trazer novas possibilidades de reflexão sobre o tema, na busca por um ensino médico na graduação mais abrangente e comprometido com uma formação que incorpore a visão integral à saúde, considerando o paciente no centro da relação terapêutica.
Práticas humanizadas de enfermagem aplicadas no processo de assistir e cuidar em unidade de terapia intensiva neonatal
Authors: Rodrigues Kawanny de Freitas , Andrade Caio Leonardo Faria , Palheta Washington José Nogueira , Oliveira Rayanne Herculano de , Silva Luana Rodrigues Ferreira , Silva Waleska Cristina Gomes da , Saboia Candice Cruvinel , Paula Júnior Newton Ferreira de
Published: October 2024

Estudo que objetivou evidenciar o estado da arte no contexto da humanização e da assistência de Enfermagem na implantação e implementação de métodos humanísticos nas Unidades de Terapia Intensiva Neonatal (UTINs). Trata-se de construção narrativa, de caráter qualitativo, com embasamento em fontes bibliográficas, obtidas por meio de pesquisa em bibliotecas virtuais e livros, selecionadas mediante critérios de inclusão e exclusão. Dessa forma, o desenvolvimento das UTINs reflete avanços relevantes na assistência a recém-nascidos críticos. Além disso, o pioneirismo do conceito dessa unidade é representado por Florence Nightingale, Walter Edward Dandy e Peter Safar. Adicionalmente, o cuidado e assistência realizados nesse cenário integra tecnologias diversas e requer abordagem especializada e humanizada. Práticas como o polvo de crochê, redeterapia, musicoterapia e o Método Canguru, demonstram-se oportunas para a busca de melhor adaptação dos recém-nascidos e fortalecimento do vínculo, em especial com os pais. Contudo, essas estratégias enfrentam desafios relacionados à falta de recursos e demanda de conhecimentos especializados. Nesse sentido, a literatura científica apresenta materiais densos e robustos, que são capazes de permitir a promoção, implantação e implementação de medidas, e destaca a Enfermagem e sua contribuição de maneira ativa para a aplicabilidade dessas práticas na UTIN e como agente facilitador.
Caminhos da história - uma experiência de Educação Patrimonial no CEM de Taquaras, Balneário Camboriú SC
Authors: Farias Deisi Scunderlick Eloy de , Tavares Marcela Martins
Published: October 2024

O projeto de educação patrimonial realizado na Escola Municipal de Taquaras, em Balneário Camboriú, teve como objetivo promover uma discussão sobre a memória e o patrimônio da região, principalmente em áreas impactadas por um empreendimento local. A metodologia adotada seguiu a abordagem construtivista, que valoriza o papel ativo dos alunos na construção do conhecimento, favorecendo o envolvimento direto e crítico com o tema. Durante um dia de atividades, as turmas do ensino fundamental I e II participaram de oficinas práticas que incluíram o contato com pinturas em carvão e a dinâmica "Caixinha do Patrimônio". Essa dinâmica permitiu que as crianças recordassem e discutissem referências culturais e patrimoniais importantes para a comunidade. Além disso, foi desenvolvido um material didático específico, direcionado tanto para alunos quanto para professores, a fim de garantir que a reflexão e o aprendizado se estendesse além do momento da oficina, contribuindo para a continuidade do debate sobre o patrimônio local. O projeto não apenas reforçou a importância da preservação cultural, mas também estimulou os estudantes e professores a reconhecerem seu papel na valorização e na manutenção da memória coletiva da região.
O enfermeiro educador em saúde nos Centros de Atenção Psicossociais álcool e drogas
Authors: Coutinho Brendan Gomes , Rabelo Samille Lopes , Silva Rayssa Viana Alencar , Soares Fernanda de Moura , Araújo Juliana Paz Freitas de , Rodrigues Vitória de Sousa , Araújo Mônica Oliveira Bezerra de , Fernandes Luana Félix Neves
Published: October 2024

A atuação do enfermeiro como educador em saúde levanta uma questão central sobre seu papel e contribuição para a educação em saúde. Essa questão se estende à compreensão do cuidado em saúde mental a partir das práticas educativas implementadas por esses profissionais. O presente estudo tem como objetivo compreender as representações da educação em saúde entre enfermeiros, bem como os métodos e estratégias empregados durante a prática do cuidado nos Centros de Atenção Psicossocial Álcool e Drogas. Trata-se de uma pesquisa descritiva com abordagem qualitativa realizada a partir de entrevistas com enfermeiros atuantes e presente nos Centros de Atenção Psicossocial Álcool e Drogas. Os dados coletados foram analisados segundo análise de conteúdo na perspectiva de Bardin. Participaram do estudo oito enfermeiros, sendo a maioria do sexo feminino. A partir da análise de dados foi possível emergir duas categorias temáticas: “Percepções dos enfermeiros frente à educação em saúde” e “Estratégias metodológicas e enfoques das práticas educativas”. Conclui-se que os enfermeiros compreendem a educação em saúde por um importante recurso para a produção do cuidado em saúde mental. A partir das práticas educativas, os enfermeiros estimulam o processo de autocuidado, autonomia e liberdade do sujeito.
O cooperativismo e a promoção do desenvolvimento sustentável: práticas em uma cooperativa de crédito
Authors: Camargo Fernanda Braga Royer , Büttenbender Pedro Luís , Flores Laiane Frescura , Henzel Marjana Eloisa
Published: October 2024

O presente estudo tem por objetivo analisar as políticas e ações implementadas na Cooperativa Sicredi União RS/ES visando consolidar a sustentabilidade e o ESG. A pesquisa caracteriza-se como um estudo de caso único, com abordagem qualitativa. Para tanto, foram realizadas pesquisas bibliográficas sobre a referida temática de estudo, pesquisa documental no relatório e na política de sustentabilidade - ano base 2023, bem como entrevistou-se os dirigentes e diretores da referida cooperativa. Os resultados evidenciam a forte atuação da Sicredi União RS/ES, na adoção de políticas e práticas orientadas à sustentabilidade e ESG, em especial, na concessão de financiamento de crédito, em programas de treinamento, de qualificação, de fomento à educação e inclusão social, com ênfase aos seus associados e às comunidades, mediante a execução de programas, ações e iniciativas inovadoras, consolidando-se como protagonistas do desenvolvimento sustentável cooperativo. Em estudos futuros sugere-se a possibilidade de ampliação do lócus de estudo, contemplando outras unidades cooperativas, proporcionando assim, um estudo mais abrangente.
Análise integrada na gestão de água para promoção de cidades sustentáveis
Authors: Nino Jr. Paulo , Zavaski Francielle Campos Vieira , Herek Luciana Cristina Soto , Lizama Maria de los Angeles Perez
Published: October 2024

Diante do processo de urbanização cada vez mais intenso, o grau de complexidade dos desafios e problemas que as cidades enfrentam na atualidade aumentam, dentre eles a gestão hídrica eficiente. O crescimento da escassez de recursos naturais relacionados à qualidade de vida urbana aliada ao uso indiscriminado do solo, alteram as funções ecológicas e ecossistêmicas do ambiente, enfatizando a necessidade de se abordar e incorporar práticas mais sustentáveis e inteligentes no planejamento e gestão de cidades. Assim, este trabalho teve por objetivo realizar uma análise quali/quantitativa e exploratória, por meio do levantamento de dados sobre identificação de infraestruturas verde e azul na área urbana de Maringá, além da utilização de shapefile da referida região por meio do software QGIS. Os resultados mostraram uma grande malha hídrica interconectada com as áreas verdes urbanas, mostrando a interação entre as infraestruturas azul e verde do espaço urbano. Com essa análise buscou-se contribuir com ferramentas para identificação das infraestruturas visando melhorar o planejamento e as ações dos gestores, auxiliando-os a aprimorar a eficiência e aplicação de operações no setor de gestão de águas urbanas, integrando tecnologia e natureza, a fim de proporcionar benefícios à população.
Elementos chave para um processo de difusão de tecnologias 4.0 no agronegócio: um estudo de caso com projetos envolvendo produtores rurais
Authors: Santos Isabela Mendes Gaya Lopes dos , Peixoto Ana Sofia Brito , Dias Eduardo Mario
Published: October 2024

As tecnologias 4.0 envolvem um conjunto de equipamentos e aplicações tecnológicas que permitem a fusão do mundo físico e digital, como a inteligência artificial (IA), a internet das coisas (IOT), robótica, visão computacional, entre outras. Atualmente, essas tecnologias já vêm sendo adotadas em diversos setores, como é o caso do setor agropecuário e representam um alto potencial para permitir o desenvolvimento do setor, remodelar significativamente as cadeias de valor e contribuir para sistemas alimentares mais produtivos, resilientes e transparentes. No Brasil, a tecnologia tem tido um papel fundamental na agricultura e explica, em grande parte, a evolução da produtividade. No entanto, a ampliação da adoção de tecnologias 4.0 no campo ainda é um desafio e depende de uma série de fatores e condicionantes. Este artigo teve o objetivo de identificar elementos chave em um processo de difusão de tecnologias 4.0 no agronegócio. Para sua elaboração, foi realizada uma pesquisa bibliográfica, além de entrevistas com atores envolvidos em projetos de adoção de tecnologias 4.0 do Programa Agro 4.0, da Agência Brasileira de Desenvolvimento Industrial – ABDI. A partir das informações levantadas, foi possível elaborar um quadro com principais elementos de entradas, etapas e saídas para este processo.
DNA Identities: Narrative and Authority in Genetic Ancestry Performance on YouTube
Authors: Lowthorp Leah
Published: October 2024

The rise of direct-to-consumer genetic ancestry testing and social media technologies have converged to create a particular genre of vernacular identity performance: the genetic ancestry “reveal” on YouTube. This article seeks to understand these performances in relation to the authority that performers grant test results to inform racial and/or ethnic identities, how performers establish hierarchies of knowledge when family folklore and genetic test results collide, and what these performances reveal about conceptions of genetic determinism today.
Generative Artificial Intelligence and Authorship Gaps
Authors: Nawar Tamer
Published: October 2024

The ever increasing use of generative artificial intelligence raises significant questions about authorship and related issues such as credit and accountability. In this paper, I consider whether works produced by means of users inputting natural language prompts into Generative Adversarial Networks are works of authorship. I argue that they are not. This is not due to concerns about randomness or machine-assistance compromising human labor or intellectual vision, but instead due to the syntactical and compositional limitations of existing AI systems in handling natural language prompts. This, I argue, gives rise to ‘authorship gaps’.
Stakeholder Engagement and Communication Strategies in Real Estate Project Management
Authors: Li Xiaoya
Published: October 2024

房地产项目管理中的利益相关者参与和沟通策略是确保项目成功的关键因素。利益相关者的广泛参与和有效沟通可以提高项目透明度、降低风险并促进项目的可持续发展。本文深入讨论了利益相关者参与房地产项目管理的重要性，沟通策略的实际实例，并给出了提高利益相关者参与和沟通效率的建议。研究结果表明，建立多层次利益相关者参与机制、采用多渠道沟通方式、注重沟通效果的评价和调整是有效提升项目管理质量的关键要素。
The Study on The Development Trends of Cross-Border E-Commerce Platforms
Authors: Guo Yuchen
Published: October 2024

With the continuous deepening of globalization and digitalization, cross-border e-commerce (CBEC) has become a critical driving force in promoting international trade and global market development. CBEC not only reshapes traditional trade models but also provides unprecedented internationalization opportunities for small and medium-sized enterprises (SMEs), significantly enriching consumer choices and fostering the prosperity and diversification of the global market. Despite the rapid development of e-commerce, there remain numerous challenges in various areas that require further in-depth research and exploration. For instance, how technology can continuously drive the development of CBEC, how consumer behavior adapts to this emerging model, how trade processes can be optimized to accommodate digital transformation, and how CBEC can promote sustainable development and brand internationalization. The answers to these questions are crucial for a comprehensive understanding of CBEC and are the focus of both academic and industry attention. This paper aims to review and analyze the development trends of CBEC, delving into six aspects: technological drivers, consumer behavior, trade process reconstruction, challenges faced, sustainable development, and brand internationalization. The goal is to provide valuable insights and experiences for the further development of cross-border e-commerce.
The Role and Impact of Investment Banks in the IPO Process of High-Tech Enterprises
Authors: He Anqi
Published: October 2024

As China's comprehensive strength continues to grow, new opportunities arise for the development of high-tech industries. An increasing number of high-tech enterprises are entering the capital market through Initial Public Offerings (IPOs) to raise funds, expand their scale, and enhance brand influence. Investment banks play a crucial role in this process. As professional financial institutions, investment banks provide indispensable services, including professional consultation, due diligence, and risk management. Additionally, investment banks can leverage resources from other industries to assist in the development of high-tech enterprises, guide them in standardized management, enhance brand value, and help these companies achieve stable growth in a competitive environment, ultimately bringing greater economic and social benefits.
Analysis of Influential Factors of House Prices in Shenzhen
Authors: Shi Jia
Published: October 2024

The change of house prices in Shenzhen can reflect the trend of house price changes in China, to a certain extent. This text chose the Factor Analysis Method to Specific analyze influential factors. This text put F1 as a variable, which included Total Floor Space of Residential Buildings Sold, Permanent Population, Total Floor Space under Construction of Commodity Housing, Investment in Real Estate Development, Gross Domestic Product, Local Budgetary Revenue and Expenditure. Through analyzing the data, this text deduced that Longgang, Baoan and Nanshan districts had above average values on F1. This text put F2 as a variable, which included Per Capital Disposable Income of Permanent Households and Growth Rate of Real Estate Investment, etc. Through analyzing the data, this text deduced that Nanshan, Luohu, Futian districts had above average values on F2. This text can conclude that Nanshan, Baoan and Futian Districts had a great influence on house prices in Shenzhen.
A Study on Illegal Wildlife Trade in Tanzania Based on Multi-source Data Fusion
Authors: Yang Tianshuo
Published: October 2024

This study on the illegal wildlife trade crisis in Tanzania is methodically divided into three phases: planning, policy, and application. Initially, data preprocessing methods such as null processing, interpolation, and max-min normalization were applied to construct a client impact assessment model utilizing AHP and hierarchical evaluation methods. WWF emerged as the most influential client. The policy phase introduced a comprehensive five-year strategy across economic, social, cultural, and environmental sectors. This strategy was supported by three quantitative models, which were used to evaluate the impact of the illegal wildlife trade. The economic model assessed the contribution to GDP growth from the integration of illegal trappers into the workforce. The social model applied crime economics to optimize time allocation under uncertainty. The cultural impact was measured through educational guidelines and a literacy score. Finally, environmental policies were analyzed by adjusting nature reserve areas and poaching difficulty parameter Z. In the application phase, Tanzania's National Forest Park was selected to serve as a pilot site for the models, with the projected outcomes including an increase in species richness and a reduction in poaching ease over a five-year period.
On the Shaping of Characters in Dance Drama
Authors: SURIGA
Published: October 2024

Dance performance is a kind of artistic dynamic image soaked with "emotion", and only by grasping the unity of inside and outside and the situation, can we completely shape the character image and achieve a certain artistic aesthetic effect. In dance creation, the creator is an inseparable and complete process of artistic creation, from deeply capturing the dance image, creating and organizing the dance language, arranging and designing the dance section, to finally reflecting the artistic conception on the stage by the actors through rehearsal. This paper takes the dance drama "Zhaojun Out" as an example to discuss how to shape the characters with dance, improve the dancers deep aesthetic thinking on the dance image, and shape the character characteristics of the main characters in the dance drama.
A study on media and information and traffic convergence in the digital age on consumption
Authors: Zhang Zijing
Published: October 2024

The digital age is the age of productivity innovation. It is the era of industrial transformation and market development to satisfy the public's eyeball economy. Under traditional productivity, new products are often produced and introduced to the market and the public accepts and adapts to the new products, and those products that are not accepted by the public will be eliminated by the market. Now, in the emerging digital era, through data and its analysis, the product and market have begun to analyse the user and market pain points, according to user data to design and develop products for the needs of the user to enjoy at the same time for the data and traffic payment. This is "information consumption" and "data consumption". Poor information is the tool to make money in the current era. How to grasp the information and data of the user group and consumer demand becomes the key. Emerging media is the key to unlocking users' needs. The purpose of this study is to find the role of this key in the integration of information and traffic into consumption. The significance of this study is to deduce the relationship between media and the convergence of information and traffic to consumption in the digital age by analysing the case of the company. The result of this study is that the digital era has created advanced productivity, and the development of productivity has led to innovations in the means and tools of the media industry, which have contributed to the development of user needs. The media is the key to creating and capturing the needs of user groups. It is also the cornerstone for creating "information consumption" and "traffic consumption".
From Sales Strategies to Information Ecosystems: The Role of Personalized Recommendation
Authors: Dong Shuo
Published: October 2024

The paper is about the application of personalized recommendations on online shopping applications to improve sales success and the spread of fake news on social media platforms.   First, the paper introduces a personalized recommendation system's concept and working principle, then emphasizes its importance in improving user experience and sales efficiency. Then it analyzes the information cocoon effect that personalized recommendation may bring, it is users only see the content that conforms to their interests and views, which intensifies the single and misleading information. This is followed by a discussion of how companies can use personalized advertisement recommendations to improve sales success.Then through deep learning and search, personalization systems can efficiently provide personalized product recommendations to users, but there are still opportunities to improve their effectiveness, such as improving network effects among relevant users. Therefore, it points out a new method to improve the sales success rate of online shopping applications.   Then discusses the role of social networks in the spread of fake news. Finally, through the network diagram, the phenomenon of information-closed loop between different groups is demonstrated, and the information transmission gap that may be caused by personalized recommendations is explained.
Analysis Of Financial Statement of Chinese Real Estate Enterprises-Take One Certain Company as An Example
Authors: Gu Yumuyang , Song Boyao , Yang Chenxue , Zhang Yinuo
Published: October 2024

Real estate enterprises play an important role in the economic development of China, which are directly influence the economy. Different from other enterprises, real estate enterprises have the features of high leverage, large capital demand, slow repayment and long investment period. In recent years, the central government has implemented a series of policies, real estate enterprises facing severe financial risks. It’s important for enterprises to identify and prevent the financial risks. As a representative of China's highly leveraged and large-scale real estate enterprises, the company continuously violates the "three lines and four levels" policy when it is implemented. This article analyses the financial risks of this company by collecting the company’s financial statement data from the past five years, using ratio analysis and Z-value model. By researching the data, this article finds that the company has weak debt paying ability, operational ability, and profitability in recent years, also facing high financial risks.
Preface: 3rd International Conference on Portfolios, Global Marketing and Economic Environment (PGMEE 2024)
Authors: Wheatley Edmund , Ke Gaofei
Published: October 2024

2024 3rd International Conference on Portfolios, Global Marketing and Economic Environment (PGMEE 2024) was held in Sao Paulo, Brazil during September 07-08, 2024. This conference aims to provide an academic sharing and exchanging platform for researchers, practitioners, and educators to present and discuss the most recent innovations, trends, and concerns as well as practical challenges encountered and solutions adopted in the fields of portfolios, financial security, risk management, global marketing, asset pricing, investment policy and economic environment.
The success of PGMEE 2024 is due to the high scientific level of all the contributions as well as to the enthusiasm of all the attendees. The member of the technical committee did a precious job in selecting the papers that were accepted for presentation and for inclusion in this book of proceedings among those that were initially submitted. Beside the authors, participants, we would like to thank the members of the organizing committee, reviewers and volunteers, whose work was fundamental for assuring the smooth running of the conference.
We hope PGMEE 2024 can develop into persistent success in future years, involving participants and speakers from all corners of the world. And we believe that with the strong support of all participants, professors, scholars, this conference will be more distinctive.
PGMEE Organizing Committees
Sao Paulo, Brazil
EVALUATING PERINATAL OUTCOMES IN HIGH-RISK PREGNANCIES USING THE MODIFIED COOPLAND’S SCORING SYSTEM AT A TERTIARY HOSPITAL
Authors: MARYAM B , YASMEEN H , ALAM F , ALAM S , MANAF A , ASIF M , SOHAIL A , KHAN M , HUSSAIN Z , HUSSAIN Z , MUSTAFA A , AHMED I
Published: October 2024

This study aims to thoroughly assess perinatal mortality rates, Apgar scores, birth weights, and neonatal complications within the first-week post-birth among high-risk pregnancies. Methods: During a prospective cohort study at Jinnah Postgraduate Medical Centre, Karachi, from October 2023 to May 2024, we evaluated outcomes in 664 high-risk pregnant women using systematic random sampling. Participants, with singleton pregnancies of 24 weeks or more gestation, were stratified by risk level. Data included demographic details, socioeconomic status, BMI, and pregnancy history. Maternal outcomes, such as mode of delivery and postpartum haemorrhage requiring transfusion, and perinatal outcomes, including birth weight and APGAR scores, were assessed. Statistical analysis emphasized odds ratios, with p < 0.05 considered significant. Ethical approval was obtained, and all participants provided informed consent. Results: This prospective cohort study at Jinnah Postgraduate Medical Centre from October 2023 to May 2024 involved 664 high-risk pregnant women categorized by standard risk scoring. Participants were predominantly low-risk (65.77%), followed by moderate-risk (19.88%) and high-risk (14.35%). Key findings included increased rates of cesarean sections, postpartum haemorrhage, premature births, low birth weight, adverse APGAR scores, NICU admissions, and perinatal mortality with escalating risk levels. Statistical analyses revealed significant associations and elevated odds ratios for adverse outcomes among higher-risk groups, underscoring the importance of risk assessment in managing maternal and perinatal health outcomes. Conclusion: Our study highlights the urgent importance of identifying and effectively managing high-risk pregnancies. We discovered that these pregnancies are associated with significantly elevated risks of complications such as Cesarean deliveries, postpartum haemorrhage, preterm births, low birth weights, low 5-minute APGAR scores, NICU admissions, and perinatal mortality. Implementing a straightforward, non-invasive risk-scoring system can facilitate early detection of high-risk cases, enabling timely and tailored interventions that can greatly improve outcomes for both mothers and infants.
INTEGRATION OF MACHINE LEARNING FOR MICROCLIMATE MANAGEMENT OPTIMIZATION IN BUILDINGS: PERSPECTIVES AND OPPORTUNITIES
Authors: Nurkamilya A.D. , Lyazzat B.A. , Lutsenko N.S. , Almas N.
Published: October 2024

Modern machine learning (ML) technologies offer significant opportunities for optimizing microclimate management systems in buildings. In this article, we explore the potential application of ML methods for forecasting, adaptive control, and optimization of heating, ventilation, and air conditioning (HVAC) systems in buildings. We examine ML methods used for analyzing weather data, working hours, thermal needs, and user preferences to automatically optimize HVAC parameters. Additionally, we discuss the application of ML for detecting faults and preventing failures in microclimate systems, contributing to increased reliability and efficiency of building operations. Finally, we consider prospects for personalizing comfortable microclimates in buildings based on user preferences. Our analysis identifies the potential of ML for creating sustainable, energy-efficient, and comfortable buildings that meet modern requirements for microclimate management. Keywords: machine learning, microclimate management, HVAC Optimization, fault detection, predictive maintenance, user preferences, energy efficiency
Individual versus collaborative learning in digital environments
Authors: Mazzoni Elvis , Gaffuri Pietro , Gasperi Michele
Published: October 2024

This contribution proposes an empirical study in which collaborative learning is compared to individual learning on a digital environment such as the web platform Moodle. The context in which this work takes place is the Faculty of Psychology of the University of Bologna. In particular, the research sample is characterized by 263 first year students that participate to the course of "Introduction to Scientific Literature and Language". Students spontaneously have chosen to participate to the course with group A (lectures on Monday) or group B (lectures on Tuesday). The course is structured in blended-learning format, i.e. three in presence lessons and three online activities to be accomplished between two consecutive lectures. For completing the online activities, students were randomly associated to two different online conditions, i.e. collaborative learning and individual learning, independently from group A or B they belong to.During the 1st and the 3rd lecture students filled in a test of comprehension of the same scientific text while between two lessons they accomplished tasks connected to scientific production (writing an abstract for a scientific paper, blind reviews of two other abstracts, and completing the abstract after receiving the reviewers' comments). By means of Social Network Analysis, at the present moment we have complete the elaboration of the SNA indices for constructing the interpersonal skills profiles both for individual students and for groups. The next step is to complete the evaluation of the two tests of comprehension of the same scientific text for having a comparison between a test and a re-test. After this phase, we will proceed by testing the following hypothesis:
1) In general, an increasing on the quality of the comprehension from the 1st to the 2nd presentation of the text A due to the online activities proposed between the two presentations.
2) A more evident improvement on those students that have been associated to the Collaborative Learning (CL) condition with respect to those of the Individual Learning (IL) condition;
3) Further, a more evident improvement on groups Low Centrality-High Density (LC-HD) than groups High Centrality-Low Density (HC-LD).
Ongoing results show that the first and the third hypothesis are confirmed, while the second hypothesis is not confirmed. One possible explanation about the second hypothesis could reside on the typology of groups, that are constructed by the researchers and not spontaneously created by students on the basis of their pre-existent acquaintances, but further studies are necessary for having a more clear comprehension of this result.
Finding the appropriate network for learning
Authors: Nyvang Tom , Bygholm Ann
Published: October 2024

In this paper, we examine one aspect of the organizational conditions for networked learning in educational institutions: What are the conditions under which institutional actors decide upon Information and Communication Technology (ICT)-strategies for networked learning purposes? The question is discussed within the frame of a case study of the decision process during a shift from one learning platform to another in an education at Aalborg University. The aim is to explicate and understand the multiplicity of issues involved and to point to possible ways of handling such decision processes. In the case in question, networked learning is already well integrated, supported by management and professionally operated by a special section of the ICT department in this institution. We thus distinguish between three major activities mediated by technology, namely operation and support; management and learning practices; each characterized by different motives; and goals and conditions. The study is based on data from interviews with students, teachers, management and personnel from operation and support combined with data demonstrating the existing practice. On the one hand, the analysis shows that the predominant reasons for deciding to change are dissatisfaction with the existing system which is slow due to (too) many levels, lack of aesthetic design, lack of coherence in practices and, generally, lack of relevant content. On the other hand, the predominant arguments for choosing the new system are more related to issues of operation, support and management (e.g. that a body of knowledge and facilities to run the new system already exist in the organisation: i.e. modern open source, and commitment in the organisation to experiment and be up-front in technology issues. We argue that the issues of dissatisfaction with the existing system will not automatically be solved by implementing a new one; that many of the problems with the existing system are related to the way it is used; that the role of the system is vaguely defined in the organisation thus leaving decisions on form and content to individual teachers; and, that there is a need for explicit guidelines and user support on the one hand and, on the other hand, an explicit discussion about the role of the system in the educational practice.