bluuebunny/crossref_metadata_2025 huggingface dataset:
The Behavioural Finance Revolution: Bridging the Gap between Numbers and Corporate Performance
Authors: Khan Umair , Khalid Umair , Zafar Amber , Zahoor Usman
Published: November 2023

This conceptual paper investigates the interplay between cognitive biases, financial decision-making, and corporate governance within the framework of behavioral finance. By examining a range of cognitive biases, including overconfidence bias, confirmation bias, anchoring bias, disclosure bias, and framing bias, the paper explores the complexities of human behavior and its impact on financial outcomes, especially in developing countries. The paper aims to suggest an approach for researchers by proposing an overall framework that intricately connects the subjectivity of cognitive biases with empirical research. The integration of theoretical frameworks, such as prospect theory, bounded rationality theory, agency theory, framing theory, availability heuristic, and the endowment effect, provides a comprehensive understanding of deviations from rational expectations in financial decision-making. Furthermore, the paper highlights the relevance of cognitive biases in understanding corporate scandals and their implications for shareholder value creation and long-term sustainable growth. The findings contribute to both academic research and practical implications, offering insights for practitioners, policymakers, and researchers in their endeavors to enhance transparency, improve decision-making processes, and cultivate responsible corporate behavior within organizations.
China’s Geostrategic Interest in the Indian Ocean Region
Authors: Khan Sidra , Ahmad Zeeshan , Ullah Maghfoor
Published: November 2023

The goal of this research is to look at China's expanding geopolitical interests in the Indian Ocean Region (IOR), as well as the strategic implications of its involvement. As it climbs to importance on the global scene, China has escalated its role in the Indian Ocean Region (IOR) via economic investments, maritime infrastructure projects, and naval activities. The research explores China's interest in the IOR, diving into the country's economic imperatives, energy security concerns, and the geopolitical significance of securing maritime routes. The report also assesses the impact of China's actions on the dynamics of the surrounding region, focusing on China's relationships with neighboring states and key players in the IOR. By evaluating China's evolving tactics and the responses of regional parties, this research aims to provide insights into the wider geopolitical context and potential issues coming from China's increasing influence in the Indian Ocean. These insights will be gained by examining China's shifting tactics as well as the reactions of regional players.
PEMBUATAN BIODISEL DARI MINYAK JELANTAH DENGAN NETRALISASI SEBAGAI PERLAKUAN AWAL
Authors: Hendratama Handik , Ninik nigusti ayu sunardi  , Listiyana candara dewi
Published: November 2023

Biodisel merupakan bahan bakar terbarukan yang memiliki karakteristik yang menyerupai disel konvensional pada umunya. Dari berbagai penelitian menyatakan bahwa biodisel ini merupakan bahan bakar yang dapat diperoleh dari limbah jelantah. Penelitian ini mengkaji bagaimana pengaruh perolehan alkil ester atau biodisel secara penelitian dan perhitungan untuk mengetahui tingat efektifitas dari biodisel yang dihasilkan. Hasilnya efektifitas biodisel penelitian ini hanya 43,8% dengan yield 30%. Penelitian ini juga menganalisa kondisi reaksi transesterifikasi pada metanol berlebih atau pada jelantah berlebih untuk mengetahui pengarunya terhadap perolehan biodisel
LIGNIN DARI JERAMI PADI SEBAGAI MATERIAL TABIR SURYA
Authors: Diana Novita Sari  , Lintang Alivia Anggerta
Published: November 2023

Lignin merupakan salah satu komponen yang terdapat pada tumbuhan dalam jumlah yang melimpah dan bisa diaplikasikan sebagai bahan aktif tabir surya. Penelitian ini bertujuan untuk mensintesa lignin dari jerami padi serta mengetahui pengaruh konsentrasi lignin jerami padi terhadap nilai SPF tabir surya. Metode yang digunakan yaitu sokletasi menggunakan pelarut etanol 80% dilanjutkan dengan hidrolisa menggunakan larutan NaOH 5% kemudian diikuti proses pengendapan (isolasi lignin) dengan penambahan H2SO4 72%. Setelah itu, dilakukan pencucian dan penetralan pada endapan lignin dan dikeringkan di dalam oven. Nilai SPF dihitung berdasarkan absorbansi pada panjang gelombang 290-320 nm. Variabel yang digunakan yaitu konsentrasi lignin 2%, 4%, 6%, 8%, dan 10% terhadap larutan etanol 80%. Hasil dari penelitian ini menunjukkan bahwa semakin tinggi konsentrasi lignin maka nilai SPF yang dihasilkan juga semakin meningkat. Nilai SPF tertinggi sebesar 16,414 diperoleh dari konsentrasi lignin 10%.
ANALISIS EFEKTIVITAS TROLLY MESIN SETTER PADA PRODUKSI PENETASAN TELUR DENGAN MENGGUNAKAN METODE OEE DAN ORE DI PT. SUJA
Authors: Akh Gandhi Suprayitno Muhammad Taufiq , Enik Sulistyowati Enik
Published: November 2023

Perusahaan yang beroperasi baik didalam negeri maupun diluar negeri sangat memperhatikan kualitas produknya, sehingga perusahaan akan berusaha seoptimal mungkin untuk menjaga kualitas produknya. Begitupun dengan PT. SUJA dimana perusahaan tersebut bergerak dibidang penetasan telur dalam menghasilkan produksi (DOC) yang berkualitas. PT. SUJA sering mengalami kendala pada trolly mesin setter antara lain yaitu kerusakan pada alat penggerak, rak tray trolly putus yang menyebabkan proses turning produksi terhambat karena mesin tidak dapat beroperasi. Disebabkan oleh kerusakan yang mendadak sehingga menyebabkan kehilangan waktu produksi karena harus memperbaiki trolly mesin disaat jam produksi, karena dimesin setter sering mengalami downtime. Penelitian ini dilakukan untuk mengetahui efektivitas mesin setter dengan menggunakan metode (OEE) dan (ORE). Standart efektivitas world class yang dirumuskan oleh (JIPM), yaitu sebesar 85%. Hasil pengukuran metode OEE didapatkan nilai efektivitas dengan sebesar 78,92%, Dan metode ORE sebesar 76,17%, dimana nilai efektivitas mesin berada di bawah standart global yaitu 85%.
KONTRIBUSI SARANA PRASARANA DAN LINGKUNGAN KERJA TERHADAP KINERJA DOSEN DI STAIS DAN STIPER
Authors: Muhabibudin Nur
Published: November 2023

This research includes quantitative research using a correlational approach. The population in this study were all permanent and non permanent lecturers of STAIS and STIPER about 192 lecturers. This study used a cluster random sampling technique with 67 lecturers as respondents. Test the validity of the data using validity and reliability tests. Prerequisite test analysis using normality test, linearity test, multicollinearity test, and heteroscedasticity test. Hypothesis testing using multiple linear regression test, t-test (partial), and F-test (simultaneous).The results showed that: 1) there is a positive and significant influence of infrastructure facilities on lecturer performance at STAIS and STIPER, evidenced by t-count> table (3.260> 1.998) with a significant level of 0.017 ≤ 0.05. 2) There is a positive and significant effect of the work environment on the performance of lecturers at STAIS and STIPER, as evidenced by t-count> table (2.335> 1.998) with a significant level of 0.023 ≤ 0.05. 3) There is a positive and significant influence of infrastructure and work environment on the performance of lecturers at STAIS and STIPER, evidenced by F-count> F-table (10.222> 3.14) with a coefficient of determination of 0.442 which means it has an influence of 44.2% in the range of sufficient categories. This study concludes that infrastructure and work environment positively and significantly influence the performance of lecturers at STAIS and STIPER East Kutai Regency partially or simultaneously.
Perencanaan keuangan Keluarga bagi UMKM Azalea dalam Meningkatkan Daya Saing di Era Pandemi Covid 19
Authors: Harahap Cicely Delfina , Titik Aryati  , Tri Kurniawati
Published: November 2023

Pandemi covid-19 menyebabkan terjadinya ketidakstabilan di sektor ekonomi. Ketidakstabilan ekonomi ini berdampak pada kehidupan rumah tangga. Penghasilan keluarga yang menurun disertai dengan kebutuhan yang meningkat daripada sebelumnya antara lain digunakan untuk membeli obat-obatan, vitamin, makanan bergizi, menyebabkan sebagian besar rumah tangga mengalami kesulitan dalam mengatur keuangan keluarganya. Peran ganda para Ibu Rumah Tangga sangat dituntut. Dibutuhkan peran ibu rumah tangga dalam mengelola keuangan keluarga dengan baik, dan kecakapan para ibu untuk dapat menambah pendapatan keluarga untuk dapat mempertahankan kesejahteraan keluarga. Objek PkM kali ini terdapat 2 kelompok, yaitu Ibu Rumah Tangga yang belum pernah berusaha dan yang sudah memiliki usaha tapi masih sangat kecil-skala mikro. Secara umum, kegiatan ini direncanakan dengan urutan sebagai berikut: Identifikasi data mitra, Pemilihan dan pelaksanaan penyuluhan dengan tema “Manajemen Keuangan Keluarga”, Pre-test dan Post-test materi pelatihan untuk menilai efektivitas pelaksanaan pelatihan. Tujuan penyuluhan untuk memberikan pemahaman dan pengetahuan mengenai pentingnya perencanaan keuangan dan bagaimana melakukan pengelolaan keuangan yang baik di lingkungan keluarga. Target luaran kegiatan ini adalah artikel jurnal untuk dipublikasikan dalam jurnal nasional dan hak cipta sebagai hak kekayaan intelektual dari kegiatan ini.
Estudo comparativo de funcionalidade de proteínas
Authors: Hennig Kelvin Mereles , Souza Natieli Edileni de , Massarolo Kelly Cristina
Published: November 2023

O crescimento populacional e a mudança de antigos hábitos sociais, vem impulsionando a demanda pelo consumo de proteínas no planeta. Devido ao alto custo econômico, ambiental e o tempo necessário para a produção de proteínas animais tradicionais, a demanda por novas fontes de proteínas alternativas vem aumentando com o passar do tempo. O uso de proteínas alternativas, como as de origem vegetal e de insetos, tem se tornado cada vez mais necessário para a sobrevivência e desenvolvimento da humanidade. Essas diversas fontes proteicas demandam estudos para avaliar suas propriedades tecnológicas e assim sugerir melhores aplicações para cada uma delas. Portanto, o objetivo foi avaliar as características físico-químicas e principais funcionalidades das proteínas alternativas de fontes vegetais e de insetos. Para isso, primeiramente foi determinado a composição proximal (umidade, lipídios, proteínas, cinzas e carboidratos) das proteínas alternativas de fontes vegetais (soja Glycine max e feijão carioca Phaseolus vulgaris Pinto Group) e insetos (larva da farinha Tenebrio molitor e grilo preto Gryllus assimilis), bem como as propriedades tecnológicas de capacidade de retenção de água (CRA) e óleo (CRO), estabilidade de emulsão (EE), capacidade de formação de espuma (CFE) e estabilidade da espuma (EES). As farinhas de insetos apresentaram maiores teores de proteínas (grilo 65,9% e tenébrio 63,8%) em relação as farinhas de vegetais (feijão 51,4% e soja 38,0%). A proteína de soja apresentou a maior CRA com valor de 2,8 mL/g, seguido do tenébrio (1,7 mL/g), grilo (1,7 mL/g) e feijão (0,9 mL/g). E quanto a CRO, as farinhas apresentaram valores semelhantes para soja e feijão, grilo e tenébrio (0,7 mL/g). As farinhas das proteínas de origem vegetal apresentaram maiores valores de EE, sendo a proteína do feijão com 62,5% e soja com 52,5%. A farinha de feijão apresentou a maior CFE (66,7%) e EES (94,1%). As farinhas de insetos apresentaram teores de proteínas e funcionalidades tecnológicas promissoras para aplicações e assim contribuir com novos ingredientes para su­­plementos alimentares e produtos alimentícios.
Uma investigação sobre as condições de ofertas para o ensino-aprendizagem do teorema fundamental do cálculo em um curso de licenciatura de matemática
Authors: Vaz Duelci Aparecido de Freitas , Gontijo Maria Aparecida , Dos Santos Cristiano Rodrigues , Mocó Gustavo da Silva
Published: November 2023

Este artigo tem como objetivo investigar as condições de ofertas ao ensino-aprendizagem dos conteúdos da disciplina Cálculo Diferencial e Integral (CDI), em um curso de licenciatura em Matemática. Analisam-se e descrevem-se as entrevistas realizadas com professores desta disciplina, para entender o seu trabalho pedagógico, quais livros utilizam, a metodologia empregada no ensino-aprendizagem, quais recursos tecnológicos eles dispõem e como estes são adotados. Concentramos a investigação no Teorema Fundamental do Cálculo por entendermos que ele é o aspecto nuclear do CDI, interligando duas operações relevantes da Matemática, a saber: derivadas e integrais, que são utilizadas para resolver e descrever diversos fenômenos científicos. Para análise das respostas dos sujeitos da pesquisa (professores e alunos do curso), utilizaram-se como categorias de análise a formação do conceito teórico e do conceito empírico e a mediação, elementos centrais da teoria histórico-cultural e seus desdobramentos, que permitem avaliar a idoneidade didática da atividade desses professores. Como resultado da análise dos dados obtidos das entrevistas e dos questionários, compreende-se que os fatores que orbitam o ensino-aprendizagem do CDI não são suficientes para evitar o alto índice de evasão e repetência da disciplina; destaca-se a ausência de uma filiação teórica em didática da Matemática dos professores, pouco uso de tecnologias para mediar o ensino-aprendizagem, desarticulação entre bibliografia adotada e as recomendadas no plano de curso, influenciando numa apropriação superficial do aspecto nuclear do conhecimento científico. Como encaminhamento, a gestão escolar deve atuar de modo mais efetivo na formação continuada de professores, de modo a mudar sua perspectiva didática.
Compostagem: produção de composto, a partir dos resíduos orgânicos gerados no Instituto Federal do Amazonas - IFAM- campus Manaus Distrito Industrial
Authors: Monteiro Adriana Maria de Castro , Machado Ana Lúcia Soares
Published: November 2023

A grande geração de resíduos orgânicos sólidos tem sido um dos problemas ambientais mais recorrentes na atualidade e seu desperdício causador de grande impacto ambiental para a natureza e questão de saúde pública. Partes desses resíduos são de alimentos provenientes da preparação e pós-refeição oriundos de residências e instituições, que na maioria das vezes não são reaproveitados ou destinados de forma correta. A prática da compostagem tem sido uma alternativa sustentável promissora para o tratamento de resíduos orgânicos sólidos. Neste sentido, o objetivo do estudo foi produzir composto orgânico por meio de dois métodos de compostagem utilizando os resíduos orgânicos gerados no IFAM-CMDI, bem como avaliar sua qualidade, seus benefícios ambientais, sociais e econômicos. O estudo resultou na geração de compostos orgânicos de qualidades satisfatórias e na criação de uma cartilha de compostagem para a divulgação dessa prática como alternativa de reciclagem de resíduos orgânicos em pequena escala.
História, arte e teologia: os vitrais da catedral de Ourinhos-SP
Authors: De Aquino Maurício
Published: November 2023

A construção da Catedral de Ourinhos-SP, entre 1940 e 1960, retrata a presença divina em um ambiente urbano moderno e é um testemunho da herança artística e cultural da região e exemplifica o significado dos vitrais na arquitetura neogótica do século XX em São Paulo. O objetivo deste estudo é refletir sobre os significados associados a essas expressões artísticas em relação à história, à arte e à teologia, revisitando o contexto histórico do Ateliê de Vitrais Casa Conrado.
Avaliação de Softwares desenvolvidos para apoio a análise de Decisão Multicritério (MCDA)
Authors: Fernandes Anderson Matos , Santos João Pedro da Silva , Vieira Flaviana Tavares , Costa Ricardo de Oliveira Brasil , Prat Bernat Vinolas
Published: November 2023

Este artigo aborda a importância da tomada de decisão multicritério e destaca o uso de softwares como ferramentas para auxiliar nesse processo. A análise de diferentes pontos de vista e critérios é essencial para a tomada de decisão, porém, a complexidade das situações requer a avaliação de várias alternativas e suas consequências. O Multi-Criteria Decision Analysis (MCDA) tem sido utilizado para resolver problemas com múltiplos critérios, considerando sua análise individual, coletiva e simultânea. A implementação de softwares para auxiliar na tomada de decisão multicritério oferece diversas vantagens: 1) Agilidade e eficiência, automatizando o processo de análise e cálculo, economizando tempo e recursos; 2) Precisão e consistência nos resultados, eliminando erros humanos e vieses pessoais; 3) Análises avançadas, incorporando algoritmos e modelos estatísticos para identificar as melhores alternativas; e 4) Fornece visualizações e relatórios automatizados, facilitando a compreensão e a comunicação dos resultados. O artigo apresenta uma metodologia de pesquisa utilizada para selecionar e analisar os softwares disponíveis. Foram utilizadas palavras-chave em diferentes bases de dados para encontrar artigos relevantes sobre softwares de apoio à decisão multicritério. A partir da revisão da literatura, foram selecionados cinco métodos principais (MAUT, AHP, MACBETH, ELECTRE e PROMETHEE) e diversos softwares relacionados a esses métodos. Por último foi destacado a modo de exemplo um aplicativo que permite calcular de forma automática o índice de qualidade de vida de comunidades quilombolas. Este aplicativo se baseia no desenvolvimento de uma metodologia englobada dentro da teoria de utilidade multiatributo (MAUT) permitindo a criação de um único índice que avalia de forma integral a comunidade avaliada.
Percepção sobre a importância das habilidades percebidas nos agronegócios do DF e estados no entorno
Authors: Presotto Elen , Ribeiro Pedro Paulo Rocha , Da Silva Jaim José , Rodrigues Maisa Isabela
Published: November 2023

O agronegócio tem avançado no uso de tecnologias, o que permite a discussão do conceito de agricultura 5.0 e as habilidades necessárias para a utilização dessas novas tecnologias, avanços e suporte para o capital humano no desenvolvido de novos conhecimentos. O objetivo deste estudo foi analisar a importância de habilidades percebidas nos profissionais atuantes nos setores de agronegócios do Distrito Federal e estados no entorno. Em termos metodológicos, utilizou-se a escala Likert, para a análise de estatística descritiva para comparar o grau de concordância ou discordância entre os indivíduos a partir das afirmativas e conceitos frente a sua percepção quanto à importância das habilidades percebidas nos profissionais que atuam nos agronegócios. Os resultados mais homogêneos entre os respondentes e maiores médias foram nos blocos de Habilidades em negócios e economia; Habilidades técnicas, Habilidades de comunicação e Habilidades em qualidades pessoais.
Efeitos da utilização de músicas na sala de ordenha sobre o comportamento de vacas leiteiras
Authors: Silva Gelson da Costa , De Souza Bonifácio Benicio , Da Nóbrega Sônia Correia Assis , De Moura José Fábio Paulino , Pires João Paulo da Silva , Benício Talícia Maria Alves , Da Silva Maycon Rodrigues , Silva José Antônio Pires da Costa , Carvalho Ariádne de Barros , Roberto João Vinícius Barbosa
Published: November 2023

O bem-estar animal é um tema de grande relevância e tem provocado diversas confrontações argumentativas no mundo, juntamente com as questões ambientais, pois as condições do ambiente onde os animais vivem, têm um papel importante na análise dos fatores indicativos de estresse. A Etologia é uma ciência pouco conhecida pelo público geral, sendo isto um fator que provoca curiosidade, contudo, a avaliação do comportamento dos animais para determinar o bem-estar é de suma relevância no contexto de produção. Na pecuária leiteira, o uso de música é pouco utilizado como método de enriquecimento ambiental de forma técnica, porém já estão em curso estudos direcionados a este assunto, com objetivo de diminuir o estresse provocado durante o manejo e as condições bioclimatológicas que interferem no potencial produtivo leiteiro, bem como na sanidade do rebanho. O objetivo deste experimento foi verificar o uso de música na sala de ordenha como meio de preservar o bem-estar animal e quantificar a produção de leite.
Digitalizando a beleza: explorando o universo dos cosméticos e sua revolução pelas mídias sociais
Authors: De Souza Amanda Oliveira , Ribeiro Rozilton Sales , Estival Katianny Gomes Santana , Corrêa Solange Rodrigues dos Santos
Published: November 2023

Este trabalho buscou reunir respostas para compreender o comportamento do consumidor quando é influenciado pelas mídias sociais, tanto para consumidores quanto para empresários. Devido à migração de anúncios publicitários em meio tradicional para redes sociais, foi de suma importância estudar essa nova estratégia para buscar ferramentas que ajudem na comunicação de empresas do setor de cosmético. Como objetivo geral, a pesquisa buscou: Compreender de forma abrangente e aprofundada, em que medida as mídias sociais influenciam em relação a compra e venda de cosméticos e como objetivos específicos: Justificar o comportamento do consumidor nas mídias sociais, identificar os estímulos e conhecimento do consumidor no meio digital e levantar estratégias de marketing que podem ser utilizadas nas mídias sociais. Para responder o objetivo geral do trabalho, elaborou-se a fundamentação teórica em temas como marketing digital, marketing de influência, comportamento do consumidor e processo de compra.  A metodologia utilizada foi a pesquisa básica, exploratória, qualitativa e bibliográfica realizada a partir das fontes consultadas, com foco nos empresários do setor de cosméticos, para anunciar seus produtos no Instagram. Como resultado da pesquisa verificou-se que os objetivos propostos foram atingidos. Também foi mostrado a diferença de consumo em diversas classes sociais. Ainda com base na revisão da literatura, foi possível observar que os cosméticos estão presentes na humanidade há muitos séculos e que sempre ajudaram na busca do ser humano pela melhoria do seu bem-estar e da sua autoestima, por meio da busca pela beleza ou pela higiene. Verificou-se também o trabalho integrou fatores como: a) comportamento do consumidor de moda percebido e b) estratégias de divulgação de produtos de moda em redes sociais.
Evaluation of the Suspensioning Decision of Hydropower Dam in the United Nations Educational Scientific and Cultural Organization (Unesco) World Natural Heritage Registered Forest (The Case of Shafarood Dam, Iran)
Authors: Salkoye Mohammad Keshavarz , Mastouri Reza , Kargari Narges
Published: November 2023

Objective: The Hyrcanian forests (Caspian forests) are located in western Asia and were inscribed on the United Nations Educational Scientific and Cultural Organization (UNESCO) World Heritage List in 2019. The construction of the hydropower Shafarood dam began in these forests in 1990.Because of budget deficits and the suspensions incurred by opposing activists in 2013, dam construction has only advanced by 23% ever since. The main purpose of this paper was to evaluation of the suspensioning decision of hydropower dam in the United Nations Educational Scientific and Cultural Organization (UNESCO) world natural heritage registered forest.   Theoretical framework: The case of this study was the Shafarood dam in Iran. There were several meetings held between opposing and agreeing stakeholders and the relevant organizations and therefore, it was decided to unsuspend the project provided that specific changes are made to the plan and adequate financial resources are allocated. The dam’s reservoir has caused the destruction of 175 hectares of Hyrcanian forests and its biodiversity. Forests play a key role in reducing greenhouse gases on a global scale.   Result: Based upon the collected data and opinions from the proponents and opponents of the dam construction, and according to the options of implementing or terminating; the environment was divided into three categories and accordingly, the environmental impact assessment (EIA) was performed. Finally, an Environmental Management Plan (EMP) was proposed for this dam and those under construction or suspended in forested areas.   Conclusion: To minimize the negative environmental effects of Hydropower Shafarood dam, an environmental impact reduction plan was proposed, whichmainly focused on mitigating measures. Reduction measures in this plan include reducing the height of the dam, proper localization of supply materials required for the dam construction, replacing modern agriculture with traditional agriculture, looking for an alternative water supply for drinking and industrial sector via conventional and unconventional methods, forest rehabilitation.
A simple, sensitive and cost-effective electrochemical sensor for the determination of N-acetylcysteine
Authors: Tajik Somayeh , Mohammadzadeh  Jahani Peyman , Garkani Fariba
Published: November 2023

In the present work, we prepared a simple and novel electrochemical sensor based on zeolitic imidazolate framework-67 (ZIF-67) and ionic liquid 1-Butyl-3-methylimidazolium hexa­fluorophosphate (BMIM.PF6) modified carbon paste electrode (CPE), which was effectively used for the determination of N-acetylcysteine. The cyclic voltammetry studies demonstrated the lowest peak potential and the enhanced peak current response for N-acetyl­cysteine at the surface of ZIF-67/BMIM.PF6-modified CPE compared to the other CPEs due to the significant catalytic effect of ZIF-67 and BMIM.PF6, as well as the combination of them. Under the optimized conditions, the electrochemical response of ZIF-67/BMIM.PF6/CPE sensor provided a good linear relationship with N-acetylcysteine concentration from 0.04 to 435.0 µM. The limit of detection is estimated to be 0.01 μM for N-acetylcysteine. In further studies and measurements, the estimation of N-acetylcysteine in tablet samples confirms the usefulness of the ZIF-67/BMIM.PF6/CPE sensor.
FRONTEIRAS DIFUSAS: OS DESAFIOS DA FALTA DE DELIMITAÇÃO DOS PAPÉIS PARENTAIS
Authors: Panstein Kamilly Eduarda Espindola , Kissula Julia Chiminecki
Published: November 2023

O artigo apresenta a Terapia Sistêmica da Família, a construção da parentalidade, o conceito de fronteiras e sua importância para a funcionalidade dos sistemas. Tem como objetivo, compreender como a falta de delimitação dos papéis parentais impactam as relações familiares, a partir da análise das fronteiras difusas. Através da abordagem sistêmica na psicologia, a família é vista como um sistema em constante evolução, influenciada por fatores sociais, culturais e históricos. A parentalidade diz respeito ao exercício dos cuidados parentais e a forma como pais e filhos constroem as relações, sendo um processo dinâmico que envolve cuidados e diferenciação dos papéis. As fronteiras que regulam a participação e interação dos subsistemas, desempenham um papel fundamental na funcionalidade familiar, a fim de manter o equilíbrio entre a abertura e fechamento do sistema, movimento essencial para autonomia e independência de cada um. A metodologia utilizada foi a revisão narrativa, com intuito de abarcar o tema de forma ampla e reunir a literatura existente sobre o tema proposto. Constatou-se que a ausência de limites claros, no qual os papéis nos subsistemas não são delimitados e definidos, afetam as interações entre os membros da família, dificultando a expressão de sentimentos e a diferenciação pessoal, adoecendo as relações em todos os âmbitos da vida. Para além, impacta a saúde mental de todos, por ser um ambiente emocionalmente instável.
Employment Quality of University Graduates: A Literature Review
Authors: Liao Hongyun
Published: November 2023

The purpose of this study is to review the academic research of university graduates. This article provides an overview of key themes and identifies research gaps for future surveys. A review and thematic analysis of published empirical studies in the past 10 years were conducted, and a total of 8 themes were summarized. These 8 topics are: Student expectations and employment quality, employment development in colleges and universities, employment anxiety of higher vocal students, the impact of artistic intelligence on the employee of college graduates, strategies to Improve Employee Outputs, evaluation of Employee Quality, the impact of Internship Experience on Job Interviews, and predicting Learning Gains for Students Based on Faculty Behaviors. Through a comprehensive literature review, prospects for future research directions are presented.
Toxicity Evaluation of Punica Granatum Fruit Peel Nanoemulsion against Tribolium Castaneum (Coleoptera: Tenebrionidae)
Authors: Ajmeera Shanthri , Madhavi M. , Mahesh L. , Lalitha B. , Vanaja K.
Published: November 2023

In this work, the essential oils were extracted from the peels of Punica granatum (Pomegranate). Insects carry natural ecosystem service area as biological controller of pests specifically the biodiversity-rich countries. Insects one of the maximum common pest stored grains and identified to infest 233 different types of pests. The study is to be synthesised the Essential oils and nano emulsion from the waste of Mosambi fruit peel. The nano emulsion were prepared and before, double distilled water added to mixture (4:1 respectively) and stirred for 60min to attain a homologous Emulsified phase.
Estimation of sharp geometric inequality in \(D_{\alpha}\)-homothetically deformed Kenmotsu manifolds
Authors: Siddiqi Mohd Danish , Naaz Siddiqui Aliya , Hakami Ali H. , Hasan M.
Published: November 2023

In this article, we investigate the Kenmotsu manifold when applied to a \(D_{\alpha}\)-homothetic deformation. Then, given a submanifold in a \(D_{\alpha}\)-homothetically deformed Kenmotsu manifold, we derive the generalized Wintgen inequality. Additionally, we find this inequality for submanifolds such as slant, invariant, and anti-invariant in the  same ambient space.
Coupling Fluid Flow and Geomechanical Deformation Using AI & FEM Approaches
Authors: Hamid Osman , Almani Tameem , Qannas Sulaiman , Alshanbari Ghalia
Published: November 2023

Coupling fluid flow and geomechanical deformation is a complex and challenging problem in geomechanics and reservoir engineering. The objective of this study is to develop a robust and accurate numerical model for coupling fluid flow and geomechanical deformation using machine learning (ML) and artificial intelligence (AI) techniques in combination with elastoplastic and finite element method (FEM) approaches.

The study involves developing an elastoplastic model to simulate the deformation of geologic materials under stress and incorporating fluid flow equations into the model using FEM techniques. The two simulators are coupled sequentially. During every sequential coupling step, the flow simulator sends pore pressures to the geomechanics simulator and receives back updated porosity and permeability values. The frequency of the coupling steps is problem-dependent and subject to further optimization and research. In addition, ML and AI techniques are used to reduce the frequency of the coupling steps, which can lead to substantial computational time savings given the fact that solving the geomechanical model numerically is a computationally intensive task. Furthermore, ML and IA techniques can also be used to optimize the input parameters, improve the accuracy of the model, and reduce overall runtime. The AI-based coupled model is tested against the traditional coupled model to validate the results.

The study demonstrates that coupling fluid flow and geomechanical deformation using ML and AI elastoplastic and FEM approaches is a promising area of research that can revolutionize our understanding of complex geological processes. The AI-based numerical model developed in this study provides an efficient and accurate tool for predicting the behavior of geologic materials under stress and can aid in developing more effective strategies for managing natural resources.

The use of ML and AI techniques in combination with elastoplastic and FEM approaches provides an innovative and efficient method for coupling fluid flow and geomechanical deformation. The AI-based numerical model developed in this study is a significant contribution to the field of geomechanics. It has potential applications in various industries, including oil and gas exploration, mining, and geothermal energy.
Sensitivity of Impurities to CO2 Flow in Injection Wells
Authors: Leontidis V. , Voronetska K.
Published: November 2023

The design and the long-term success of carbon injection and storage operations strongly depends on predicting the behavior of CO2 fluids, pure or mixtures. This work presents the impact of different impurities (CH4, CO, N2, O2, Ar, H2, H2S, H2O) in the hydrodynamic and the thermophysical behavior of CO2-rich mixtures in an injection well. A unified in-house well flow simulator (GWellFM), which is based on solving the momentum and the enthalpy balances and integrates the GERG-2008 Equation-of-State for pressure-enthalpy tracking, is applied to model the injection process under different conditions. The objective is to capture the impact of the impurities in the injection scenario in a typical offshore high-pressure reservoir with respect to the compression demands and the behavior of the fluid. Injecting fluids with the standard composition and the typical flow rate results in a slight increase of the wellhead pressure when compared to CO2-only injection. The higher the flow rate, the higher is the injection pressure and the lower bottom-well fluid temperature. On the other hand, increasing the injection temperature demands more pressure and the fluid remains hotter close to the bottom. Transient calculations showed that the initial large difference between the wellbore temperature and the hosting formation at the bottom of the well decreases rapidly with the injection pressure following the same reduction increasing the risk of phase change. Among the binary mixtures tested the presence of H2 and CH4 had the more severe influence causing a significant increase in the compression demands, and H2S the less. H2O or H2 is more likely to cause the appearance of a second phase in the range of conditions tested. Replacing part of other impurities with H2S in multicomponent CO2-rich mixtures could reduce the wellhead pressure in comparison to the initial mixture with the same concentration of CO2.
A New Quick Look Interpretation for Fluid Detection: Theory and Application
Authors: Farfour Mohammed , Foster Douglas J. , Gaci Said
Published: November 2023

Numerous methods for fluid analysis and detection are routinely used in formation evaluation and reservoir characterization at well location. These methods are commonly called Quick Look Interpretation (QLI) methods. Examples of these methods include: Rx0/Rt, Apparent water resistivity (Rwa), Conductivity-derived porosity, and wet resistivity method. The QLI requires a number of logs such as resistivity, sonic, and density. All these logs are commonly used in Geo-mechanics to detect normal trends and deviations from them to predict pore pressure and detect over-pressured zones.

This study aims to introduce a new QL method that uses the density’s trend and variation that can be attributed to fluid or to overpressure zones. An apparent fluid density is proposed and computed from the porosity logs assuming the only fluid in the logged intervals is water. The resulting apparent fluid density log is then compared with the recorded density. Large deviations between the apparent and recorded density are interpreted to be due to fluid or to overpressure zones.

As an application, the new QLI method is tested on real data from North Western Australia. Three wells penetrating gas-sand reservoir are selected for the test. Results obtained from the wells inferred that reservoir intervals are clearly identified by clear deviations. Pressure data collected at the wells showed that the deviation from the normal density trend are from fluid and not overpressure.
Study on Time-Varying Characteristics and Rockburst Prediction of Acoustic Emission of a Granite With Initial Temperature Damage
Authors: Li Dejian , Li Chunxiao , Zhao Pengcheng , Li Zeyang
Published: November 2023

To reveal the impact mechanism of initial temperature damage on the rockburst precursor characteristics, firstly, the true triaxial strainburst experiments were conducted on granite with different initial temperature damage. Secondly, based on the time series of acoustic emission signals, the time-varying response characteristics of entropy value, b-value and multifractal spectra width Δα of acoustic emission were analyzed to establish a prediction index of rockburst. Finally, the rockburst prediction effects of three methods for granite with initial temperature damage were evaluated. The results indicated that during the axial stress loading to rockburst, the time-varying response turning point of b-value from stability to gradual decreasing, the entropy value and Δα for a mode of “fluctuation→gradual increasing” can be regarded as the prediction point of rockburst. By establishing a proportional coefficient between the precursor stress and peak stress of rockburst, the rockburst prediction effects of three characterization methods for the acoustic emission time-varying signals were obtained as follows: Δα > b-value > entropy value. Moreover, it was concluded that when the initial damaging temperature reaches 400 ℃, the rockburst suddenness of granite sample is stronger, which is more difficult for the three characterization methods to predict rockburst.
The Role of Geomechanics on Hydrogen Extraction
Authors: Hamid Osman , Alsudairi Nora
Published: November 2023

The role of geomechanics in hydrogen extraction processes is crucial for understanding the behavior of subsurface formations and optimizing extraction techniques. This paper focuses on the modeling and rock testing aspects of geomechanics to investigate the influence of rock properties on hydrogen extraction efficiency and safety. The objective of this study is to explore the role of geomechanical modeling and rock testing in assessing reservoir behavior, wellbore stability, and storage integrity for hydrogen extraction projects. The methodology involves a comprehensive analysis of geomechanical modeling techniques and laboratory rock testing methods. Geomechanical modeling techniques, such as finite element analysis and discrete element modeling, provide valuable insights into the behavior of subsurface formations under different stress and fluid flow conditions. These models can simulate the mechanical response of the reservoir during hydrogen extraction, enabling the prediction of deformations, stress distributions, and potential failure mechanisms. The results highlight the significance of geomechanical modeling and rock testing in assessing the behavior of subsurface formations during hydrogen extraction. Geomechanical models help identify potential geomechanical risks, such as fault reactivation, induced seismicity, and wellbore instability, allowing operators to design optimal extraction strategies and implement appropriate mitigation measures. Rock testing provides crucial input parameters for accurate modeling and enhances the understanding of rock behavior, contributing to the assessment of reservoir performance and storage integrity. The conclusion drawn from this study is that geomechanical modeling and rock testing are essential tools for assessing the role of geomechanics in hydrogen extraction. By integrating these approaches, operators can gain valuable insights into the mechanical behavior of subsurface formations, optimize extraction techniques, and ensure the safe and efficient operation of hydrogen extraction projects. The innovation of this study lies in highlighting the importance of geomechanical modeling and rock testing in the context of hydrogen extraction. By incorporating these approaches, operators can make informed decisions regarding reservoir behavior, wellbore stability, and storage integrity, leading to enhanced operational efficiency and safety.
Reinforcing Cemented Paste Backfill With Basalt Fiber: A Path Towards Sustainable Practice in Mine Backfilling
Authors: Hefni Mohammed
Published: November 2023

Cemented paste backfill (CPB) is a mixture of mine tailings, hydraulic binder, water, and other additives. CPB is used to backfill underground cavities created during ore extraction, reducing tailings exposure to the environment. However, the consumption of cement in CPB not only increases the operational cost of CPB but also runs counter sustainable mining practices. This prompted scholars to seek environmentally friendly alternatives without compromising CPB properties. Therefore, this experimental study was conducted to investigate the effect of utilizing basalt fiber (BF) as a sustainable material in CPB applications. CPB samples were prepared with different dosages of BF (0.5%, 0.75%, and 1%) using two different fiber lengths (12-mm and 18-mm). CPB samples were tested for unconfined compressive strength (UCS) after 7, 14, and 28 days of curing. The findings show that BF can improve UCS by up to 35% compared to the reference mixture. This potential alternative offers a sustainable solution to mitigate the negative impacts associated with cement use in CPB applications.
High Temperature Influence in Pore Pressure Prediction – Case Study in Offshore Malaysia
Authors: Kamaruddin Nik M Fadhlan Nik , Ern Kevin Teng Ging
Published: November 2023

Pore pressure studies are key components for well design engineering and economics consideration to safely reach deep petroleum resources. However, in deeper reservoirs, additional geological processes are favorable for secondary overpressure mechanisms which may lead to uncertainty in pore pressure prediction. Analyses conducted are interpreted together with petrophysical, stress and pressure plots such as depth-based velocity-density, porosity-effective vertical stress, field data (formation and temperature) and observations (stress and pressure measurements). The results show the highest uncertainties in predictions versus actual measurements are often observed at 80 to 140 degree Celsius. This temperature range is often related to less predictable fluid properties and pressure due to probable complex geological processes such as hydrocarbon generation, diagenesis, metagenesis, chemical compaction and alteration. For each temperature range, the estimation errors are plotted and assessed based on field observations. The paper highlights the differences between estimation of pore pressure and actual measurements at a range of temperatures and the evaluation of uncertainties associated with temperature in pore pressure prediction. The origins of overpressure and associated geological processes are important in providing thorough and improved understanding on the effects of temperature and the pore pressure prediction reliability. The paper presents an improved methodology and workflow in pore pressure prediction coupled with petrophysical analysis for range of temperatures which provides additional insights for timely decision making. It also aims to encourage the community and industry to consider the replication and potentially improving the workflow for determining uncertainty and increasing understanding in pore pressure prediction at elevated temperatures.
Fracture Propagation-Rate and Fracture Half-Length Estimated for an Individual Fracturing Stage Using Dynamic Balancing of Fluid Pressures: Eagle Ford Case Study
Authors: Oshaish Ali , Weijermars Ruud
Published: November 2023

This study presents a new analytical model for determining the growth-rate of hydraulic fractures during the pumping of a fracturing stage. Unlike existing commercial and numerical tools for final fracture half-length estimation, the present model is able to accommodate time-dependent parameters used in actual field operations and shows how this controls the stepwise evolution of fracture half-length over the duration of the stage treatment. The model analyzes the pressure gains and losses across the well system during the fracturing treatment operation, which solves for the Sneddon pressure used subsequently to estimate the extent and rate of the hydraulic fracture growth from the perforation clusters outward until the ultimate half-length is established. Using a practical spreadsheet template, the pressure balance model accounts for all the pressure gains and losses occurring during a typical hydraulic fracturing job. The model revealed practical results and reasonable values for the fracture half-length, in close agreement with independent estimations of fracture half-length for the same Eagle Ford well. The average propagation rate of a planar fracture, with an elliptical cross-section (in map view) of 1.8 mm width for the minor axis and fixed height of 100 ft, is 1.54 ft/min (0.026 ft/s), with high and low rates ranging between 2.81 and 0.220 ft/min. The final hydraulic fracture half-length at the end of the fracturing job was 212 ft. However, the effectively propped fracture half-length determined in independent studies using production analysis is somewhat smaller (144 ft), which indicates that the tip-end of the final fracture (212-144 ft= 68 ft) was not effectively propped, and effectively closed after the treatment.
Optimization of Perforation Parameters for Shale Gas Horizontal Wells in Weiyuan Block, Sichuan Basin
Authors: Yang Yadong , Wang Yixuan , Deng Cai , Gu Mingzhe , Huang Liuke , Sheng Mao , Ren Lejia
Published: November 2023

Horizontal well multi-cluster fracturing has been recognized as an effective technology to extract shale gas resources. This paper proposed a full 3D model of multi-cluster fractures propagation with perforation tunnels by using 3D lattice method. The oriented perforation and spiral perforation modes were compared to understand their distinct of multiple fractures initiation and propagation. The particular conditions of Weiyuan shale gas block and the strike-slip fault were taken account. The uniformity of fractures propagation and their impacting factors were analyzed. Results demonstrated that the oriented perforation promotes plannar fractures with less twist but the number of perforation tunnels is relatively small with big perforation friction comparing to the spiral perforation. The case study takes the optimized combination of engineering parameters to achieve the uniform propagation with the pumping rate for single cluster of above 2m³/min, perforation density of 6 per foot, and the cluster spacing of over 10m. This work provides a modeling workflow to consider the perforation tunnels and the optimized parameters for uniform hydraulic fracturing.