bluuebunny/crossref_metadata_2025 huggingface dataset:
Identifying immune cell infiltration and diagnostic biomarkers for nasopharyngeal carcinoma through bioinformatic analysis
Authors: zhao yahui , Qiu Zhaofeng , ye shengnan
Published: January 2024

Backgrounds: Explore the genomic and signaling pathways contributing to nasopharyngeal carcinoma, a prevalent and multifactorial cancer involving environmental, genetic, and EB virus factors. This study aims to identify potential genes associated with nasopharyngeal cancer and examine their relationship with immune cell infiltration.
Methods: The Gene Expression Omnibus (GEO) database provided three sets of nasopharyngeal cancer data: two for training and one for validation. To identify candidate genes, a Protein-Protein Interaction (PPI) network was constructed using a string database and two machine learning algorithms: the Least Absolute Selection and Shrinkage Operator (LASSO) and the Supporting Vector Machine Resource Elimination (SVM-RFE). The external validation dataset assessed the proposed levels of expression of biomarkers and the diagnostic value of the test to evaluate its effectiveness. Receiver Operating Characteristic (ROC) curves were used to measure diagnostic performance, convolutional techniques in CIBERSORT were applied for immune cell infiltration analysis, and correlation analysis was conducted using the training dataset.
Results: The GEO database provided GSE12452 and GSE13597 datasets. The limma package filtered 58 differential genes, including 13 upregulated and 35 downregulated genes, which were visualized using volcano maps, heat maps, and PCA. Enrichment analysis results indicated a significant association between inflammation and disease. The Lasso and SVM algorithms were applied to screen 9 and 37 differential genes, respectively. Overlapping genes associated with nasopharyngeal cancer include ATP12A, LAMB1, RAD51AP1, CXCL11, BINSM1, PTGS2, and SAA1. Their diagnostic significance was confirmed using the operational characteristic Receptor of the validation group, and they were found to be highly connected to the degree of immune cell infiltration.
Conclusions: These seven genes are considered promising biomarkers for diagnosing nasopharyngeal cancer, paving the way for future research on the immunological mechanisms and therapy of nasopharyngeal carcinoma.
Fredholm Nature of Orbital Frame Operators in Hilbert Spaces
Authors: Rezaei Hamid , Saeedi Zahra
Published: January 2024

A linear operator T on a Hilbert space H is said to be orbital frame if there exists a vector x ∈ H such that orb(T, f) constitutes a frame. This paper presents a novel examination of frames in the context of Hilbert space H, showing that orbital frame operators must be Fredholm. In particular, if an orbital frame operator T either has a dense range or is one-to-one then it is an invertible.
MSC2020 Classification: 46B15 , 47B02
Seroprevalence of Hepatitis B Infection Among Blood Donors in the Western Zone of Tanzania
Authors: Marira Gadiel J. , Kimaro Esther G. , Sauli Elingarami
Published: January 2024

Background
In the western zone of Tanzania, there is limited information for the prevalence of hepatitis B infection. In this study, we analyzed the dataset of blood donors to determine seroprevalence and socio-demographic factors related to Hepatitis B Virus infection among blood donors in the western regions of Tanzania.
Material and Methods
The study was a cross-sectional retrospective hospital-based. Data were retrieved from blood donor dataset given at the Zonal Blood Transfusion Center. Information analyzed from the dataset includes reported Transfusion Transmissible Infections (TTIs) including Hepatitis B, donor demographics, donor status, donor type, donation place, and the year of donation. This study focused on five years period from January 2018 to December 2022. The seroprevalence rates of hepatitis B surface antigen (HBsAg) were determined, and the univariate and multivariate analysis were conducted to determine association between infection and demographic risk factors under STATA version 15.1.
Results
A total of 9604 retrospective blood donors were screened. Majority (93.3%) were men, and most were under 45 years (89.6%). The overall, seroprevalence for HBsAg was 6.9% (661) in this study, with Katavi (7.8%) being relatively high in the study area. The highest HBsAg seroprevalence of 8.2%, was found to be in age group range of 35 to 44 years. In addition, Polygamist 9.5%, and drivers at 17.1% were shown to have relatively high seroprevalence in this case. Using multivariate analysis, the results indicate blood donors who were drivers (OR 5.44, 95% CI; 2.43 12.20, p < 0.001), and the first-time donors (OR 5.19, 95% CI 2.56 = 10.52, P 4 < 0.001), were highly associated with an increased chance of hepatitis B infection.
Conclusion
The findings demonstrate that; there is a high seroprevalence of HBV in western regions. These findings bring to the attention of more advocacy for HBV immunization for all persons at high risk, as it is the most effective way to prevent HBV infection.
Untargeted massspectrometry based lipidomics analysis reveals altered lipid profiles in a scribble knockdown-induced colorectal cancer model of Drosophila
Authors: Kumar Rohit , Fatima Zeeshan , Kumar Pradeep , Kumar Prabhat , Chauhan Brijesh Singh , Srikris Saripella
Published: January 2024

Cancer alters host metabolism to meet its nutritional demands. The role of lipids and their association with colorectal cancer (CRC) remains elusive. Scribble (Scrib) is a cell polarity regulator protein that also functions as a tumor suppressor. Scrib dysregulation has been reported in various advanced cancers, including CRC.In this study, we used tissue-specific GAL4-UASRNAi to knockdown Scrib in the Drosophila hindgut. Scrib knockdown led to the development of a CRC-like phenotype. Lipid droplets were enlarged in the adult fat body with tumor induction. We employed LC-MS-based untargeted lipidomics to explore global lipid changes in Scrib knockdown flies.Our analysis revealed alterations in total lipids, with 63 lipids upregulated, 48 downregulated, and 120 unaffected. Principal component analysis (PCA) and partial least squares discriminant analysis (PLS-DA) revealed striking differences between wild-type and Scrib knockdown flies. Volcano plot analysis revealed that TAG 54:2, PIP2 35:6, PIP2 34:5, FFA 6:1, and PIP 37:2 were the top five significantly upregulated lipids, while TAG 52:1, GM3 38:2;3, GlcdE 2:6, PIP2 37:4, and PIP2 37:2 were the top five significantly downregulated lipids.Receiver operating characteristic (ROC) curve analysis identified TAG 54:2, PIP2 35:6, and PIP 42:2 as promising biomarker candidates.In summary, our results highlight the value of integrating LC-MS-based lipidomics with machine learning algorithms to explore significant lipid alterations at an organismal level in Scrib knockdown flies. These findings open avenues to investigate cancer-lipid interactions in CRC and related human cancers, potentially shedding light on new diagnostic and therapeutic opportunities.
Study the effect of the static magnetic field on some blood parameters of male rats:In vivo
Authors: Al-Dulamey Qusay kh. , Najim Laith A. , Al-Jawwady Yasir A. , altaii ‬‏Hiyam adel
Published: January 2024

The goal of the current study was to determine how magnetic field that is constant affected male rat rates of growth, Plasmatic protein concentrations, hematopoiesis, the levels of glucose and Dehydrogenase of lactate (LDH) activity, transaminase activity. Rats were sub acutely exposed to SMF for 8 days in a row for 2 hour each day at 140 mT, which resulted in an increase in plasma LDH activity (+ 29%). Moreover, the glucose concentration increased by(+ 29%) and platelet number (+ 9%) while the hematological parameters, protein levels, and the activity of the enzymes alanine aminotransferase (ALT) and aspartate aminotransferase (AST) remained the same. Rats exposed to SMF for 16 days in a row (2hour/day at 140 mT) experienced significant growth rate significant increases in hemoglobin Hb (+ 9%) total plasma protein TP (+ 25%) glucose concentration (+ 37%) hematocrit levels Ht (+ 16%) platelet number PLT (+ 11%) Lactate dehydrogenase LDH (+ 29%) aspartate aminotransferase AST (+ 16%) alanine transaminase ALT(+ 17%). Rats exposed to SMF for 32 days in a row (2hour/day at 140 mT) experienced more significant growth rate significant increases in hemoglobin (+ 18% ), total plasma protein (+ 40%) cell of red blood (+ 18%), cell of white blood (+ 18%), and number of platelet (+ 16%) levels. The activities of LDH were likewise elevated by sub-chronic exposure to SMF. The concentration of glucose, however, was unaltered. This study was carried out with the objective of investigating the influences of stationary magnetic wave on growth enhancement, hematopoiesis, plasmatic protein data, glycaemia, of lactate dehydrogenase (LDL) and transaminases(alanine and aspartate aminotransferase data .
A Smart System to Detect Bike Accidents and Reduce Casualties
Authors: Ridwan A. E. M , Mary Mekhala Mariam , Rana Shohag , Islam Md. Motaharul
Published: January 2024

In this world people are a victim of traffic accidents so easily. It turns out more crucial when they cannot reach out for help. Overcrowdedness and ignorance of traffic rules and regulations are the main reasons for such accidents. The number of bikes in Dhaka has expanded dramatically as a result of the increased popularity of ride-sharing apps such as Pathao, Uber Moto, Shohoz, and others. As a result, bike accidents have become an everyday phenomenon. We have felt the need for an improved bike safety system that ensures bikers' proper emergency services. In this paper, we have proposed a system that constantly detects bike accidents using the MPU6050, SIM808, Raspberry Pi, and Arduino Uno. We also have used a USB camera to record the previous 30 seconds of the accident to identify the reason behind this misfortune. Furthermore, we have used a database to locate the nearest hospital for assistance. If an accident occurs, the sensors will trigger, capture the video information of why the accident has occurred, and send a message containing the number and location of the biker to the nearest hospitals, police stations, and emergency contacts.
SymProFold - Structural prediction of symmetrical biological assemblies
Authors: Buhlheller Christoph , Sagmeister Theo , Grininger Christoph , Gubensäk Nina , Sleytr Uwe B. , Usón Isabel , Pavkov-Keller Tea
Published: January 2024

Symmetry in nature often arises from self-assembly processes and serves a function. Our automated pipeline SymProFold leverages the high accuracy of the AlphaFold-Multimer predictions to derive symmetrical assemblies like two-dimensional S-layer arrays or spherical viral capsids from their protein sequence, verified with available experimental data on the cellular level. S-layers, found on many bacterial and archaeal cells, are vital for facilitating cell adhesion, evading the immune system, and providing protection against stress. However, their experimental structural characterization remains challenging because of their self-assembly property and high sequence variability. SymProFold now offers new avenues for exploring functionalities and designing targeted applications in diverse fields like nanotechnology, biotechnology, medicine, and material and environmental sciences.
IMPLEMENTATION OF ACCOUNTABILITY AND TRANSPARENCY IN FINANCIAL MANAGEMENT OF MIFTAHUL JANNAH MOSQUE IN BLITAR DISTRICT BASED ON ISAK 35
Authors: 123 Kirani Salsabila , Priantilianingtiasari Ruly , Priantilianingtiasari Ruly
Published: December 2023

The mosque is a non-profit organization whose accounting records have been regulated by the Interpretation of Financial Accounting Standards No. 35. The problem that has been occurring in society is a lack of knowledge regarding the importance of accountability and transparency in financial management and mosque financial records that have not complied with applicable accounting standards. The purpose of this study was to determine the application of accountability and transparency in financial management at the Great Miftahul Jannah Mosque in Blitar Regency and to analyze the financial reports at the Miftahul Jannah Grand Mosque in Blitar Regency, whether they are in accordance with ISAK 35. The method used is a qualitative case study. The results of this study indicate that accountability and transparency in the financial management of the Miftahul Jannah Grand Mosque as a whole have been implemented and are running well. The Miftahul Jannah Grand Mosque has not presented financial reports in accordance with ISAK 35, only presents financial reports in the form of cash in and cash out only in the General Cash Book and Financial Accountability Report.
MANAGEMENT OF CROUP IN CHILDREN: A CASE REPORT
Authors: Susanto Wenly , Novia Bella Rianto  , Dewa Agung Ayu Sridharaswari
Published: December 2023

Background Croup is a viral respiratory disease in children that attacks the larynx and trachea causes obstruction or blockage of the upper respiratory tract which, if severe, can be life-threatening.  Diagnosis of respiratory tract infection in children requires keen clinical vigilance to understand the risk of airway obstruction and the possible need for prompt intervention. Clinical symptoms in croup usually fever, runny nose, painful swallowing, and mild cough. This condition can develop into a loud, hoarse and harsh cough. Recognition of signs and symptoms is very important to prevent morbidity and mortality.
Objective To describe diagnosis and management of croup in children.
Case Description  A 3-year-old boy, came to the emergency room with complaints of sudden shortness of breath this morning accompanied by fever and a barking cough. These complaints had been felt for 3 days before going to the hospital, but they can reduce on their own and according to the parents there were no danger signs for complaints in their children.
Conclusion  Croup is a self-limited disease, but sometimes it tends to be severe and even fatal. Prompt and appropriate management can prevent or reduce the risk of croup morbidity and mortality in children .
PHOTOPILE MONOFACIALE AU SILICIUM EN REGIME TRANSITOIRE : INFLUENCE DE LIRRADIATION SUR LA DENSITE DE PHOTOCOURANT ET LA CAPACITE
Authors:   Groupe International de Recherche en Energie Renouvelable (GIRER). BP. 15003, Dakar, Senegal., Sagna Batoura , Lemine Cheikh Mohamed ,   Groupe International de Recherche en Energie Renouvelable (GIRER). BP. 15003, Dakar, Senegal., Lemrabott Habiboula ,   Groupe International de Recherche en Energie Renouvelable (GIRER). BP. 15003, Dakar, Senegal.,   Ecole Superieure Mutinational de Telecommunication-Dakar, Senegal., Gueye Sega ,   Groupe International de Recherche en Energie Renouvelable (GIRER). BP. 15003, Dakar, Senegal.,   Faculte des Sciences et Technologies de Leducation et de la Formation-Departement de Physique et Chimie, Universite Cheikh Anta DIOP, Dakar-Senegal., Thiame Moustapha ,   Groupe International de Recherche en Energie Renouvelable (GIRER). BP. 15003, Dakar, Senegal.,   Universite Assane SECK, Ziguinchor, Senegal., Sissoko Gregoire ,   Groupe International de Recherche en Energie Renouvelable (GIRER). BP. 15003, Dakar, Senegal.
Published: January 2024

Dans ce travail, nous etudions linfluence de lirradiation (energie dirradiation et coefficient de dommage) sur le comportement dune photopile solaire en regime transitoire, eclairee par sa face avant. Letude porte principalement sur la densite de photocourant et sur la capacite de diffusion de la photopile. Apres la resolution de lequation de continuite des porteurs minoritaires de charge dans la base, nous obtenons une expression de la densite des porteurs minoritaires de charge, de la densite de photocourant, de la phototension et de la capacite de diffusion toutes dependantes du temps. La densite des porteurs minoritaires de charge, la densite de photocourant, la phototension et la capacite de diffusion de la photopile sont etudiees pour differentes valeurs de lenergie dirradiation et du coefficient de dommage en fonction du temps.
AN AYURVEDA CASE STUDY ON MYELOPROLIFERATIVE NEOPLASMW.S.R TORAKTARBUDA
Authors:   Assistant Professor, Department of Kayachikitsa, PatanjaliBhartiyaayurvigyanevumanusandhansansthan, Haridwar., Kumar Srivastava Avinash , Dalel Rajan ,   Post Graduate Scholar, Department of Kayachikitsa, PatanjaliBhartiyaayurvigyanevumanusandhansansthan, Haridwar., Aggarwal Ankita ,   Post Graduate Scholar, Department ofKayachikitsa, PatanjaliBhartiyaayurvigyanevumanusandhansansthan, Haridwar., Painuly Paridhi ,   Post Graduate Scholar, Department ofKayachikitsa, PatanjaliBhartiyaayurvigyanevumanusandhansansthan, Haridwar.
Published: January 2024

Myeloproliferative neoplasms (MPNs) are rare, potentially life-threatening blood cancers that happen when your bone marrow makes too many blood cells. Blood cells include red blood cells, white blood cells and platelets. Theyre made in the spongy tissue inside of your bones. MPNs arent directly mentioned in Ayurveda, which can be taken as Anuktvyadhi andin this case study, a male patient of 44 years came with GBP reports suggestive of MyeloproliferativeNeoplasm havingsymptoms like fever, weakness, mild abdominal pain associated with Splenomegaly in the OPD of kayachiktsa for which raktashamakandpittashamak and Lekhandrugs were prescribed which enhance the blood amount. Simultaneously other drugs such as- Kaishoreguggulu, Godhan ark, Kayakalpkwath, Cystogrit diamondwas given as the main line of treatment which ultimately combat underlying symptoms of the patient.
MMP-9 EXPRESSION IN ORAL SQUAMOUS CELL CARCINOMA USING IMMUNOHISTOCHEMISTRY, WESTERN BLOTTING, AND REVERSE TRANSCRIPTION POLYMERASE CHAIN REACTION TECHNIQUES
Authors:   Department of Oral and Maxillofacial Pathology and Microbiology, Divya Jyoti College of Dental Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh - 201204, India., Nasreen Nighat , Singh Sanjeet ,   Department of Oral and Maxillofacial Pathology and Microbiology, Divya Jyoti College of Dental Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh - 201204, India., Singh Paramjit ,   Department of Oral and Maxillofacial Pathology and Microbiology, Divya Jyoti College of Dental Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh - 201204, India., Sharma Kanika ,   Department of Oral and Maxillofacial Pathology and Microbiology, Divya Jyoti College of Dental Sciences and Research, Modinagar, Ghaziabad, Uttar Pradesh - 201204, India., Hussain Showket ,   Division of Molecular Oncology/Division of Cellular and Molecular Diagnostics,ICMR- National Institute of Cancer Prevention and Research, Department of Health Research,Ministry of Health and Family Welfare, Government of India, Sector-39, NOIDA - 201301, India.
Published: January 2024

Research into matrix-metalloproteinases (MMP) and their inhibition in certain cancers has moved significantly, studies on MMP expression in oral squamous cell carcinoma (OSCC) remains scarce. MMP-9, a gelatinase-degrading enzyme, destroys matrix proteins in gingivitis and adult periodontitis. MMP-9 genetic (mRNA) and protein profiles were examined to determine MMP-9 expression in oral cancer in this study. Our gender findings indicate that the majority of patients were males and consumers of various tobacco forms.The buccal mucosa was involved in 52% of OSCCs, followed by the tongue (33%), and the gingivobuccal sulcus (9%).The levels of MMP-9 detected in OSCC grades were higher than controls in the order of well-, followed by moderately- and lastly poorly-differentiated grades.Immunohistochemistryseemed to be a reliable approach for measuring MMP-9 expression in OSCC samples when compared to RT-qPCR and western blotting. The association of high MMP-9 levels with well-differentiated OSCC grade implies its potential as a biomarker for early detection of OSCC which could lead to the development of early OSCC treatments. More studies with larger samples might aid in the evaluation of the techniques used.
SYNTHESIS AND STUDY ON THE PROPERTIES OF CAMOO4:EU3+ CO-DOPEDTB3+ MATERIALS TO ENHANCED RED PHOTOLUMINESCENCE
Authors:   Faculty of Chemistry, Thai Nguyen University of Education, Thai Nguyen City 250000, Vietnam., Chu Manh Nhuong , An Pham Mai ,   Faculty of Physics, Thai Nguyen University of Education, Thai Nguyen City 250000, Vietnam., Pham Van Huan ,   Faculty of Natural Sciences, Electric, Electric Power University, Hanoi City 100000, Vietnam.
Published: January 2024

Ca0.99-yTb0.01MoO4:yEu3+nanophosphors weresuccessfullysynthesizedbyhydrothermal method. All the samples can be excited by 395nm wavelengths for generation of red color emission. Enhancement in 5D0→7 F2 (616 nm) emission (f–f transition) of Eu3+ionis observed when Tb3+ionis co–doped in CaMoO4:Eu3+. This is due to the efficient energy transfer from Tb3+ to Eu3+ ions. Introduction of Tb3+ in the system does not lead to the change of emission wavelength of Eu3+. However, Tb3+and Eu3+co–doped in the system induces a shift in Mo-O charge transfer band absorption from 262nm to (413–431 nm). This may be due to the increase in electronegativity between Mo and O bond in the presence of Eu3+andTb3+leading to change in crystal field environment of Mo6+ in MoO4 2−. At the optimal concentration of Eu3+, an enhancement in emission by a factor of ∼5.6 in the respective excitation at 616nm ( 5D0→7 F2) is observed. The chromaticity coordinates (CIE) of all Ca0.99-yTb0.01MoO4:yEu3+ nanophosphors are in the red region. The luminescence lifetime values are0.812 ms to 1.20 ms. The energy transfer is observed to occur mainly via dipole–dipole interactions.
Key Stakeholders’ Perspectives on Implementation and Scale-up of Telehealth in HIV Care in Harare, Zimbabwe
Authors: Chigaro Stanford , Machingura Ruredzo Ian , Omar Adam
Published: January 2024

The World Health Organisation recommends telehealth as an alternative to help reach remote or underserved areas. Telehealth adoption is therefore key to ending the HIV pandemic. Successful implementation and scale-up of telehealth heavily rely on stakeholders’ involvement. This study explored key stakeholders’ perspectives on the implementation and scale-up of telehealth in HIV care in Harare. In-depth interviews were conducted with professionals within the Ministry of Health and Childcare and its partners, between May and August 2023. Fourteen purposively selected stakeholders were interviewed. Thematic approach to analysis with a coding framework guided by Consolidated Framework for Implementation Research was adopted. Key stakeholders perceived telehealth as a potentially effective intervention, which can improve health delivery. Key stakeholders cited the following challenges for implementation and scale-up of telehealth in HIV care: poor internet and mobile network; financial challenges; and unavailability of policies. Key stakeholders suggested the following strategies to the successful implementation and scale-up: multi-sectoral collaboration for reliable and affordable mobile and internet connectivity; policy formulation, donors’ engagement; and recruitment of competent staff. The study findings showed the confidence of key stakeholders in Harare to effectively sustain telehealth in HIV intervention. Despite its promising potential, significant hurdles to telehealth implementation exist and should be addressed to realise the full potential. Further research incorporating telehealth end-users is recommended, to fully understand challenges and hence inform policy. Keywords: HIV; Key Stakeholders; Telehealth; Utilisation.
Factors Affecting Dietary Intake and Physical Activities of Primary Health Care Workers in Nasarawa State Nigeria
Authors: Tunga Salihu Iliyasu , Olubunmi Adeyemi Adedayo
Published: January 2024

This study adopted a cross-sectional study design and deployed a quantitative methodology to assess the factors affecting dietary intake and physical activities in Nasarawa state. The questionnaire was adapted as an instrument for data collection. 400 respondents were sampled through a multistage sampling technique and 300 were interviewed with the aid of the epi-info mobile data collection tool. Data from the field survey were presented in frequency and simple percentages informed by tables and charts. The study reveals that Location and Level of income are some of the basic factors affecting dietary intake and physical exercise among Primary Health Care workers in Nasarawa state however, it was also observed that income and location do not necessarily affect dietary intake and physical exercise all the time, but motivation could also play a role most especially in maintaining good physical activity. The study also reveals that PHC staff in Nasarawa state may be aware of their daily exercise and diet needs theoretically but in practice, they don’t “practice what they preach”. It was concluded that Primary health care workers in Nasarawa state maintain a poor level of diet and physical activities, dietary intake and physical activities affect the performance of PHC staff, and PHC workers don’t practice and maintain good diet and physical activity habits, there is a need for promotion of health education activities related to diet and physical activities at PHC level across the state to inspire and motivate PHC staff to take up healthy diet and exercise habit. Keywords: Affect, Dietary, Exercise, Habit, Healthy, Intake, Physical, study, Planned, Performance.
Preschool Teachers’ Perceptions of the Potential of Giftedness
Authors: Dağlıoğlu H. Elif , Çerezci Özlem
Published: January 2024

Introduction: This study was conducted to examine preschool teachers’ perceptions of giftedness before and after they received training.
Method: With a qualitative research design, this study utilized a case study. The working group of the study consisted of 171 volunteer teachers working in the official preschool institutions and primary school kindergartens located in the city centre of Çorum. Data were collected through Information Form, Brainstorming Technique, and Drawing Technique. Inductive content analysis was employed during data analysis. The statements were analysed and coded separately by the researchers at least three times while categorizing the data, and the codes and categories were finalised after three experts’ views.
Findings: Preschool teachers were found to be most likely to take into account the cognitive developmental characteristics of these children both before and after receiving the education. In addition, it was revealed that they made a greater number and variety of coding after receiving the training. . It was also determined that before teachers were informed about giftedness, they expressed the characteristics of these children that could challenge them more.
Discussion: After the preschool teachers were informed about giftedness, they were found to be more knowledgeable about the cognitive, language, social-emotional development, and general developmental characteristics of these children by reflecting on the drawings they made. In this context, it has been discovered that teachers' perceptions of the challenging traits in gifted children significantly decrease after receiving information, and as teachers become more acquainted with gifted children, they are increasingly inclined to embrace and understand their potentially challenging characteristics.
Intangibilidade e risco sistemático nas empresas mais inovadoras do Brasil
Authors: Silva Pedro Jorge Pinheiro da , Albuquerque Filho Antonio Rodrigues , Vasconcelos Alessandra Carvalho de , Garcia Editinete André da Rocha , Soares Marilene Feitosa
Published: January 2024

Objetivo: O objetivo do artigo é analisar a influência dos ativos intangíveis no risco sistemático em empresas brasileiras inovadoras com ações listadas na B3.
Metodologia: Caracterizado por uma abordagem descritiva, documental e quantitativa, a amostra da pesquisa é composta por empresas participantes do ranking da 6ª edição do Prêmio Valor Inovação Brasil 2020, promovido pela Strategy& – consultoria estratégica da PwC – e o Jornal Valor Econômico. Foram analisados os ativos intangíveis e o risco sistemático das empresas referentes aos anos de 2015 a 2020.
Resultados: Quanto à representatividade, os resultados indicam diferenças significantes no risco de empresas intangível-intensivas em relação às tangível-intensivas, sinalizando que empresas que possuem um maior valor em intangíveis tendem a apresentar maior risco de mercado. Destaca-se também que o endividamento aumenta o risco da firma, enquanto seu desempenho tende a diminuir o risco. Quanto à estrutura dos ativos intangíveis, constatou-se que o grupo de ativos estruturais, na presença dos grupos de ativos de inovação e de relacionamento, influenciam significativamente o risco sistemático das empresas.
Contribuições do Estudo: O estudo contribuiu ao abordar a influência da estrutura e da representatividade dos intangíveis no risco sistemático, já que adota outro construto que não seja o desempenho organizacional, diferenciando-se de trabalhos prévios sobre o tema aplicados a empresas brasileiras. Além disso, ao avaliar a relação da estrutura e da representatividade dos intangíveis no risco da firma, esta pesquisa possibilita consolidar novas características ao perfil das empresas intangível-intensivas, observando quais grupos de intangíveis oferecem maior risco aos negócios.
Evidências da divulgação dos objetivos de desenvolvimento sustentável em empresas brasileiras de capital aberto
Authors: Barra João Pedro Lopes , Cunha Ícaro Guilherme Félix da , Oliveira Maria Júlia Estevão de Melo , Policarpo Renata Veloso Santos , Rebelatto Daisy Aparecida do Nascimento
Published: January 2024

Objetivo: O presente artigo busca identificar se as empresas brasileiras de capital aberto, listadas no Índice Brasil 50 (IBrX50) e no Índice de Sustentabilidade Empresarial (ISE), utilizam os Objetivos do Desenvolvimento Sustentável para nortear suas práticas ambientais, sociais e de governança (ESG).
Metodologia: A avaliação se dá, pela análise descritiva de conteúdo, de empresas listadas no IBrX50, com destaque para que também eram listadas no ISE B3, no ano de 2022. A coleta de dados coletou informações, principalmente nos relatórios de sustentabilidade das empresas da amostra e em sites especializados na avaliação ESG.
Resultados: A pesquisa apresenta analogias entre as carteiras teóricas do ISE B3 e do IBrX50 e conduz análises dos ativos presentes em ambas as carteiras e pontuações ESG, bem como, a proximidade dos ativos em relação a evidenciação dos Objetivos do Desenvolvimento Sustentável em seus relatórios de sustentabilidade. Pelas análises verificou-se que, apesar de grande parte das empresas divulgarem relatórios de sustentabilidade e citarem os ODS, poucas delas divulgam metas e iniciativas voltadas ao desenvolvimento sustentável de maneira prática.
Contribuições do Estudo: O artigo contribui com o campo de pesquisas relacionadas à divulgação voluntária de informações sobre sustentabilidade, apresentando um panorama inicial das evidências acerca da divulgação dos ODS em relatórios de sustentabilidade no contexto brasileiro. Estudos futuros podem explorar análises que incorporem as práticas ESG nas empresas.
Academic dishonesty: motivations of accounting students
Authors: Santos Neto Aloísio Ventura dos , Bonfim Mariana Pereira , Silva César Augusto Tibúrcio
Published: January 2024

Purpose: Understanding the motivations for the occurrence of academic dishonesty in university Accounting students.

Methodology: Applying a survey based on the research by Ives et al. (2016) on 83 Accounting students from Rio de Janeiro. The Kuder-Richardson test was applied to verify the instrument's internal consistency. Subsequently, Pearson's chi-square test was performed.

Results: The results indicate that age and gender have little influence on dishonesty, while the period students are studying has an influence; that is, the longer the length of stay, the greater the dishonesty. It is also noteworthy that the students confessed to having seen more dishonest acts than they practiced, demonstrating that it is easier to admit that they have seen other people being dishonest than to confess their dishonesty. The biggest motivations for dishonesty were the need to get good grades, fear of failing, and lack of understanding of the content and methodology used by professors.

Contributions of the Study: This paper advances the literature and brings contributions on the subject, as it helps to understand academic dishonesty better. Observing the main motivations of students to commit dishonest acts is important for educational institutions and teachers since it helps to understand some motivations that induce students to be academically dishonest. With such knowledge, faculty, and universities can develop and implement policies and methods that encourage fairer procedures, discouraging dishonesty in the academic environment. Consequently, it will improve the quality of teaching and learning and the training of more qualified and honest workers in the professional market.
Aspectos ecológicos y conductuales relacionados con la alimentación de Concholepas concholepas (MOLLUSCA : GASTROPODA : MURICIDAE)
Authors: Castilla J.C. , Guisado CH. , Cancino J.
Published: January 2024

El murícido Concholepas concholepas (Bruguiére) conocido en Chile como loco, es actualmente uno de los moluscos comerciales más valiosos del país. El presente trabajo representa uno de los primeros intentos para comprender la conducta alimentaria del loco y los elementos fundamentales de la historia de vida de la especie. En la historia de vida post-capsular de C. concholepas se pueden distinguir cuatro etapas: 1) larva pelágica, 2) asentamiento y juveniles, 3) juveniles avanzados y adultos intermareales, 4) adultos sublitorales. Se presentan los principales ítem alimentarios para cada una de las etapas bentónicas. Se describe por primera vez la conducta alimentaria de la especie y se postula una estrategia alimentaria conducente a saciedad con períodos de alimentación activa y de reposo. La cantidad de alimento, cirripedios y choritos, consumidos por el loco durante períodos de alimentación activa, representan el 4.6 - 5,98°/o del peso del cuerpo del animal por día. Cuando se computan períodos de alimentación extensos, activos e inactivos, los porcentajes decrecen 10 a 20 veces. Experimentos de laboratorio demuestran una selección del tamaño de las presas, Perumytilus purpuratus (Lamarck), por parte de locos de diferentes tamaños. Se describen 6 mecanismos conductuales para la obtención e ingestión de presas por C. concholepas: 1) remoción mecánica (buldozing) y succión, 2) acción mecánica y succión, 3) envoltura, apertura y succión, 4) envoltura y succión, 5) perforación y succión y 6) acorratamiento, ruptura y succión.
Inversión térmica costera y su relación con los eventos de surgencia
Authors: Fonseca Tomás R.
Published: January 2024

En este trabajóse busca una explicación lísica del origen y fluctuaciones de una inversión térmica costera. Para ello se analiza información batitermográfica recolectada en la costa de Valparaíso durante H años. Con esta información se calculan estadísticas simples y se emplean modelos de caja para el balance calórico a fin de estudiar este fenómeno. La inversión térmica en la costa de Valparaíso se atribuye al hundimiento que experimenta el agua de surgencia en su trayectoria hacia el oeste. El hundimiento se produce debido a la mayor densidad del agua f ría de surgencia y al arrastre hacia el oeste por el transporte Ekman. Un modelo de capa simple para el balance de calor, muestra alguna evidencia de que el intercambio calórico con la atmósfera no sería suficiente para calentar el agua surgente. Esta evidencia respalda el mecanismo que relaciona la inversión térmica costera con los eventos de surgencia.
Una aproximación ecológica al estudio del parasitismo en el "Congrio negro" Genypterus maculatus (TSCHUDI) (PISCES: OPHIDIIDAE)
Authors: George-Nascimento F. Mario , Huet D. Brian
Published: January 2024

En el examen parasitológico de 80 congrios negros Genyptnus maculatus (Tschudi) recolectados en el puerto de Talcahuano. Chile, se encontró los siguientes taxa: Entre los ectoparásitos, el copépodo lepeophtheirus yañezi y a un hirudíneo de la familia Piscicolidae. Entre los endoparásitos. en el tracto digestivo se encontró al cestodo Auoncocephalus chilensis, el nemátodo Cucullanus sp. y al tremátodo Lecitochirium genypteri; en la caviidad celomática, y al estado larval, se encontró a los cestodos Hepatoxylon trichiuri. Nybehnia sp., un plerocercoide de la familia Diphyllobothridae, a los nematodos Amsakis sp y Phocanema sp.. y al acantocéfalo Corynosoma sp. De la comparación cuali y cuantitativa de las parasitosis del congrio negro y del congrio colorado Genypterus  chilensis (Guichenot). se deduce que existiría una segregación trófica entre ambas especies de huéspedes: esto se debe a las diferencias notables en la prevalencia y abundancia de las infecciones por Anisakis sp. y por Corxnosoma sp.. dos parásitos que poseen buenas cualidades como bioindicadores de diferencias dietarias entre sus huéspedes.
Enhancing NPK Uptake and Biomass of Blueberries in Alluvial Clay Soil Using Biochar and Compost
Authors: Ngoc Ngo Phuong , Quynh Le Ngoc , Ly Le Minh , Thao Pham Thi Phuong , Van Dang Le , Em Tran Hoang , Hung Ngo Ngoc
Published: January 2024

Background:

The Mekong Delta features acidic clay soil of alluvial origin with a soil texture ranging from silty clay to clay. The growth of wild blueberry plants in clay soils requires the addition of materials to enhance soil porosity and aeration.

Objective:

The objective of this study was to examine the effects of the combined use of biochar and compost on the growth, yield, and NPK uptake of blueberry (
Vaccinium tenellum) cultivated in the Mekong Delta.

Methods:

The pot experiment had a 3 × 3 factorial design, containing the application of biochar at 0, 10, and 20 t ha
-1 (B0, B10, and B20, respectively), compost at 0, 5, and 10 t ha
-1 (C0, C5, and C10, respectively), and NPK at 45:20:20 kgha
-1 according to the growth stages of blueberries.

Results:

The interaction between biochar and compost provided a more efficient response in terms of plant growth, yield, and NPK uptake. Notably, in the combined application of B20 and C10, NPK uptake and biomass of blueberries were significantly increased. However, only the concentration (gkg
-1) of N (14.8) and K (3.82), except for P (1.37), in the blueberry leaves were below the Trevett threshold.

Conclusion:

This approach effectively mitigates the challenges posed by high clay content in the soil, which results in poorer soil porosity and aeration. The findings emphasize the potential benefits of tailored soil amendment strategies to optimize blueberry cultivation in similar environments.
Imagens, links e vídeos: argumentação em campanhas eleitorais no Twitter
Authors: Soares Enio
Published: January 2024

This article presents an excerpt from our ongoing doctoral research, which aims to identify and analyze linguistic aspects and argumentative strategies in electoral campaign publica-tions on social media from the official profiles/pages of Jair Bolsonaro and Fernando Haddad - the 2018 Brazilian presidential candidates – and Ana Gomes and André Ventura – the 2021 Portuguese presidential candidates – based on the theoretical framework of Discourse Analysis. Here, we pro-vide an analysis of two of the 15 most relevant publications from each candidate on the Twitter social media posted in the 15 days immediately preceding the elections. We draw on Textual Lin-guistics, following the works of Adam (1997, 2001a, 2001b), Bronckart (1985), and Plantin (1996), to identify and analyze how the structure of the social network (Bossetta, 2018), as a textual support, as conceived by Maingueneau (2001), influences the materialization of techno-discourses (Paveau, 2021), which is reflected in the construction of textual sequences identified in the corpus, specifi-cally regarding the presentation of arguments or data (premises) in argumentative textual sequences in which multimodal compositions involving static images, links, and videos were preferred.
Discursos do 25 de Abril: percurso histórico de um género político
Authors: Pita Sara
Published: January 2024

As the 50th anniversary of April 25th approaches, an exploratory study has been initiated on a political genre linked to the history of Portugal: the speech delivered by the President of the Republic during the official ceremony commemorating the Carnation Revolution. Operating under the assumption that, during the production of a text, other texts are reproduced and revis-ited while respecting the genre tradition, a diachronic analysis of speeches produced from 1977 to 2023 was conducted. Following the Sociodiscursive Interactionism perspective, every text must be framed within a genre and the social activity that motivates it. Therefore, this study encompasses an approach to external components (production location, purposes, participants, etc.) before delving into the analysis of compositional elements. This article discusses the results of a qualitative analysis of a corpus comprising 20 speeches, focusing on formal, linguistic, and stylistic elements, as well as the role of narrative sequences in argumentative terms. The repetition of themes, particularly critical reflection and rupture, structural articulations (anaphoric parallelisms), and the narrative sequence is observed as a starting point for constructing arguments by analogy.
Feasibility and Risks of Chili Farming in Disaster-Prone Areas of Mount Merapi, Indonesia
Authors: Rahmawati Nur , Rozaki Zuhud , Al Riyadh Rofiqoh Zuroida , Susanawati Susanawati
Published: January 2024

Mount Merapi, located in Indonesia, is an active volcano that poses a significant threat to the surrounding communities. Vegetables, including chili, are grown in the disaster-prone areas surrounding Mount Merapi, despite the risks associated with the active volcano. Based on the prevailing wind patterns in the region, the disaster-prone areas surrounding Mount Merapi have been classified into four distinct zones, namely Zones I, II, III, and IV, each characterized by distinct agroecosystems, feasibility, and risk levels. Therefore, this study aimed to describe agroecosystems, costs, income, feasibility, and risks of chili farming in in the four zones surrounding Mount Merapi. The samples of this study consist of 163 farmers from the four disaster-prone zones surrounding Mount Merapi, selected through purposive sampling. The RC ratio was employed as part of the feasibility analysis, and the production and income risks were analyzed. The results showed that chili farming in Zone IV (the area farthest from the disaster center) possessed the lowest cost, revenue, and income. On the contrary, Zone III generated the highest cost and revenue, while Zone I (the area with the highest vulnerability to disasters) had the highest income. The range of R/C values ranges from 2.40 in Zone I to 1.16 in Zone IV. Considering the results, chili farming was feasible in disaster-prone areas, where the production risk was lower than the income risk. Therefore, Zone I, the area with extremely high disaster risk, had the lowest production and income risk. This study highlighted that chili farming provides benefits to the vulnerable farmers and new perspective for agricultural sustainability in the area of Mount Merapi.
The Efficiency of κ-Carrageenan-Chitosan-PVA-MWCNTs Membranes in Removing Methylene Blue, Rhodamine B, Bromocresol Purple, and Murexid from Water
Authors: Widarti Sri , Suprianti Yanti , Kurniasetiawati Annisa Syafitri , Tritjahjono Rachmad Imbang
Published: January 2024

The electrocoagulation method has been proven to be highly effective in removing metal ions from water, with a removal efficiency of over 97%. However, in terms of removing organic pollutants such as synthetic dyes, the efficiency of electrocoagulation is still relatively low. A hybrid approach combining electrocoagulation with membrane filtration has been proposed to enhance the removal of organic contaminants. Eco-friendly membranes made from renewable natural polymers like carrageenan and chitosan, reinforced with synthetic polymers such as polyvinyl alcohol and carbon nanotubes, have shown to be promising for this application. In this study, membranes with varying chitosan/carrageenan ratios of 0.2, 0.33, 0.5, and 0.71 (g/g) were used to remove synthetic dyes, including methylene blue, rhodamine B, bromocresol purple, and murexid, at a concentration of 200 ppm from 8.5 ml of water. From the SEM images, the four membranes have almost the same surface and cross-section morphology. The results showed that the membrane with a chitosan/carrageenan ratio of 0.71 exhibited the highest removal efficiency for all synthetic dyes. The parameter affecting the membrane’s removal efficiency is the interaction between the membrane and synthetic dyes. Murexid, an anionic dye, achieved a 100% removal efficiency, surpassing cationic dyes such as rhodamine B and methylene blue. Besides interactions, the dye’s molecular size determines the removal’s efficiency. The molecular size of rhodamine B is larger than that of methylene blue, and the removal efficiency of rhodamine B (98.4%) is greater than methylene blue (91%). Bromocresol purple is almost the same size as rhodamine B but not ionic because it has the lowest removal efficiency of 34.55%.
Porous Carrageenan-Derived Carbons for Removal of Pb(II) Ions from Aqueous Solution
Authors: Anisuzzaman S M , Mansa Rachel Fran , Elkes Richmond Pillai
Published: January 2024

Activated carbon (AC) is a widely used adsorbent that can be applied to remove lead (Pb(II)) ions from wastewater. In the current work, carrageenan was used as a precursor to prepare carraggenan based activated carbon (CAC) using potassium hydroxide (KOH) as a chemical activating agent for Pb(II) ions adsorption from aqueous solution of lead nitrate (Pb(NO3)2). The preparation process involved activation of the carrageenan with KOH at a ratio of 1:4 followed by carbonization at 700oC for 4 h. Physical and chemical characterization of synthesized CAC was conducted to understand surface morphology and functional groups. As the scanning electron microscope (SEM) analysis found, the CAC particle sizes are, on average 25.11 µm before adsorption and 39.21 µm after adsorption. Functional group studies proved that the adsorbate had been adsorbed into the CAC by showing a band stretch of the nitrile group in the Fourier transform infrared (FTIR) spectroscopy analysis. The adsorption process was optimized by changing the temperature of adsorption, dosage of adsorbent, and initial concentration of adsorbate. At the optimum conditions, maximum Pb(II) ions adsorption on the CAC was achieved by 99.04%. Throughout this study, the highest capacity of CAC was determined to be 1.95 mg/g, while the minimum capacity was found to be 0.19 mg/g. Langmuir and Freundlich isotherm were studied to understand adsorption mechanisms. The results suggested that the Langmuir isotherm model fits better than the Freundlich model with a regression coefficient  of 0.9845. Pseudo-first-order and pseudo-second-order kinetic models were applied to test the experimental data. Pseudo-second-order exhibited the best fit data for kinetic studies with a regression coefficient of 0.9996, indicating that the adsorption of lead using CAC is limited by the chemisorption process.