bluuebunny/crossref_metadata_2025 huggingface dataset:
Causas universais dos excedentes de prazo em projetos de construção
Authors: Pereira Nathália Brandão , Kohlman Rabbani Emilia Rahnemay , Silva Maria Conceição da Costa
Published: January 2025

The satisfactory performance of a project is subject to a number of factors, including its execution on schedule. However, time overruns are frequent and have an impact on costs, the environment and society. This article aims to identify the main causes of delays in construction projects reported in the literature from different countries. The methodology adopted was a systematic literature review, extraction and statistical analysis of the causes indicated in articles over a 5-year period, in order to draw up a ranking of universal causes of delay in construction projects. A total of 68 studies were selected and 321 causes were obtained, from which the ranking of the 20 universal causes of delay was drawn up, the main ones being late payments to the contractor and frequent requests for changes/alterations to the project. From the study, it was possible to produce systematized knowledge about time overruns in projects to be applied in strategies to mitigate this problem. Identifying the causes of delays highlights issues to be prioritized, avoiding project stoppages and losses in essential investments for the economic and social development of countries.
Construindo Cidades Sustentáveis através da Integração da Arquitetura Vernacular
Authors: Viana Kelly Mares
Published: January 2025

This article explores the integration of vernacular architecture and sustainable practices in contemporary urban planning as an innovative approach to building more sustainable cities. Beginning with an analysis of the importance of vernacular architecture as an expression of local culture and traditional knowledge, the article highlights how these practices can be adapted and incorporated into modern urban projects. By examining the tangible and intangible benefits of this approach, including the reduction of environmental impact, preservation of cultural identity, and strengthening of community, the article demonstrates the significant potential of integrating vernacular architecture in creating more livable and resilient cities. Through case studies and practical examples, the article illustrates how the combination of traditional building techniques with contemporary innovations can lead to positive outcomes in terms of energy efficiency, use of sustainable materials, and urban quality of life. Ultimately, the article emphasizes the importance of recognizing and valuing cultural and environmental diversity in our urban development process, highlighting vernacular architecture as a rich source of inspiration and solutions for the cities of the future.
Reconectando paisagens
Authors: Mota Maiara Costa , Meneses Ana Raquel Santos de
Published: January 2025

The research presented discusses the systemic understanding of the landscape, which integrates natural and cultural aspects, for the design of urban park landscape projects. As a space that integrates the urban environment, the park has ecological potential due to its predominance of natural elements, with an emphasis on vegetation, especially linear parks, as it provides greater physical connectivity and gene flow, when species appropriate to the local reality are used. Taking the Capibaribe Park planting system project as its empirical object, documentary research was accomplished on the park's executive projects, descriptive notes and the set of design guidelines contained in the Capibaribe Park Environmental Recovery Urban Plan (TOMO IV). Thus, the objective was to analyze the procedures for use the vegetation that constitute the project's Vegetal Palette, formed exclusively by native vegetation of the local phytophysiognomy. As a result, the potential of using native vegetation as a design guideline was verified, dialoguing with the ecosystemic dimension of the landscape, strengthening the system of relationships existing between biotic, abiotic and environmental factors in the urban environment. The results also highlight the implications for the city's natural system, in terms of increasing local biodiversity and the existence and safeguarding of ecosystems associated with the Atlantic Forest biome.
Sedimentologi dan Sekitaran Pengendapan Kumpulan Setul, Pulau Langgun
Authors: Mohd Radzir Nurul Afifah , Abu Samah Mohammad Ezanie , Azmi Azrin , Ali Che Aziz , Mohamed Kamal Roslan
Published: January 2025

Kajian sedimentologi batuan Kumpulan Setul di Pulau Langgun, telah dijalankan dengan objektif utama untuk mengenal pasti perbezaan litologi serta sekitaran pengendapannya. Aspek sedimentologi batuan Kumpulan Setul telah diperincikan berdasarkan perbezaan cirian lapangan serta perkaitannya dengan log sedimen. Hasil kajian yang diperoleh menunjukkan batuan Kumpulan Setul yang terdapat di Pulau Langgun dibahagikan kepada lima fasies utama, iaitu fasies trombolit (Ft), fasies stromatolit (Fs), fasies selang lapis batu lodak dan batu lumpur (Fblo-Fblu), fasies batu kapur masif (Fbk) dan fasies batu kapur merah (Fbkm). Sementara itu, berdasarkan perbezaan sekutuan fasies, Kumpulan Setul di sekitar Pulau Langgun diasingkan kepada dua iaitu Sekutuan Fasies 1 (SF1) dan Sekutuan Fasies 2 (SF2). Kedua-dua sekutuan fasies ini menunjukkan terdapat tindakan hidrodinamik daripada pengaruh pasang surut dan melibatkan perubahan paras air laut global berlaku di kawasan sekitaran zon dasar bergelombang ribut dan lebih khususnya adalah di kawasan cerun di zon sub-pasang surut (sub-pasang surut bahagian atas).
Nanobunga Hibrid Lektin sebagai Pembawa Novel untuk Pemegunan Glikoenzim
Authors: Wan Ahmad Wan Nurazra Marsya , Saad Nor Nadia , Shahidan Nur Nabilah , Shahidan Muhammad Ashraf
Published: January 2025

Interaksi khusus antara concanavalin A (Con A), sejenis lektin daripada tumbuhan jackbean, dengan teras manosa pada glikan-N membolehkannya digunakan untuk pemegunan glikoenzim. Dalam kajian ini, nanobunga hibrid Con A- CuSO4 (CCHN) disediakan sebagai pembawa novel untuk pemegunan peroksidase lobak putih (HRP), glikoenzim yang digunakan secara meluas dalam aplikasi bioanalitikal. Morfologi CCHN yang disediakan dicerap menggunakan mikroskop elektron pengimbasan pancaran medan (FESEM) menunjukkan mikrostruktur persis-bunga dengan saiz purata diameter 51.5 μm serta saiz kelopak bunga yang luas sekitar 2 μm. Seterusnya, pengoptimuman pemegunan HRP pada CCHN dilakukan menggunakan format tiub Eppendorf dan plat mikro menunjukkan bacaan penyerapan A450 tertinggi pada campuran 100 mg/mL HRP dan 10 mg/mL CCHN untuk kedua-dua format. Aktiviti HRP terpegun pada CCHN yang diukur menggunakan format tiub Eppendorf (A450 = 1.58) adalah dua kali ganda lebih tinggi berbanding format plat mikro (A450 = 0.76) dan dipilih untuk kajian seterusnya. Bacaan A280 untuk setiap supernatan yang diperolehi selepas pengemparan dalam langkah pembasuhan yang diulang sebanyak empat kali pula didapati amat rendah menunjukkan HRP terpegun dengan kuat pada CCHN dan tiada kebocoran enzim pada larutan. Ujian penjanaan semula menunjukkan HRP terpegun boleh ditanggalkan daripada CCHN dengan sekali pembasuhan menggunakan gula perencat metil a-manosa pada kepekatan 0.1 M. Selain itu, ujian kebolehulangan turut dilakukan menggunakan tiga kelompok CCHN yang berbeza kerana tiada perbezaan signifikan pada bacaan A450 menunjukkan kebolehulangan yang baik untuk pemegunan HRP. Keputusan kajian ini menunjukkan CCHN yang dihasilkan mempunyai potensi yang tinggi untuk digunakan sebagai pembawa untuk pemegunan glikoenzim secara mudah, tekal serta boleh diguna-semula.
Characterization of Graphene Oxide Functionalized Carbon Foam as a Potential Material for Different Applications
Authors: El-Yaqub Balarabe , Wahid Mohd Haniff , Zainal Zulkarnain , Abdullah Abdul Halim , Wan Ab Karim Ghani Wan Azlina
Published: January 2025

Due to its cheap production, high electrical conductivity, simplicity of doping, and enhanced hydrophilic characteristic, porous carbon foam has a lot of potential for energy storage and conversion applications. In this study, graphene oxide (GO) was successfully grafted onto carbon foam using a simple dip coating technique with the help of a linker. 3D porous carbon foams were created using a one-step carbonization from commercial melamine foam. The material was characterized using XRD, FTIR, BET, TGA, XPS, Raman and FESEM to confirm its structural, functional group, surface area, thermal stability, and morphological characteristics. The stress-strain tests of the samples were conducted on an electronic universal testing machine. These foams have sufficient surface area (99 m2/g), a high level of C content (79.15%), and excellent compressibility. Moreover, as a proposed material for different applications, this distinctive GO grafted porous carbon foam also has the tendency to deliver remarkable performance in different fields of study. In conclusion, the GO grafted porous carbon foams have excellent prospects for different applications due to the straightforward preparation process and fascinating properties.
A Compartmental Model for the Transmission Dynamics of Rabies Disease in Dog Population
Authors: Kaliapan Thanisha , Chong Nyuk Sian , Abdullah Ilyani , Salleh Zabidin , Labadin Jane
Published: January 2025

Dogs are the main source of more than 90% of human rabies infections that pose a significant threat to public health, primarily in Africa and Asia. However, it is also one of the viral diseases that can be prevented by vaccination that affects both warm-blooded animals and humans. There are two types of rabies vaccines: pre-exposure prophylaxis and post-exposure prophylaxis (PEP). Mathematical models can be valuable tools for predicting and controlling the spread of rabies disease. Thus, we introduce an SEIV (Susceptible-Exposed-Infected-Vaccinated) model incorporate vaccination control strategy to examine the transmission dynamics of rabies disease in dog population. The basic reproduction number, , positively invariant and attracting region, steady states, and the stability analysis of the model are investigated. We find that there are two equilibria exist in the model, i.e., disease-free and endemic equilibria. To prove the global stability of disease-free and endemic equilibria, the theory of asymptotic autonomous system and geometric approach have been applied, respectively. Hence, we find that the disease-free and endemic equilibria are globally asymptotically stable if and , respectively. Numerical simulations are performed to depict the dynamics of the model. As a conclusion, we will be able to control the disease effectively if the vaccination rate is sufficiently large.
The One-Sided Variable Sampling Interval Exponentially Weighted Moving Average Charts under the Gamma Distribution
Authors: Goh Kai Le , Teoh Wei Lin , Teoh Jing Wei , Chong Zhi Lin , Chew Xin Ying
Published: January 2025

Recently, adaptive quality control charts have been frequently utilised in diverse production and manufacturing industries to ensure process stability and maintain a desirable level of product quality. Among these charts, the variable sampling interval (VSI) exponentially weighted moving average (EWMA) X̅ chart is known for its sensitivity and efficiency in monitoring the process mean shifts. However, the existing literature on the design of the VSI EWMA X̅ chart is predicated on the presumption that the underlying process adheres to a normal distribution. This normality assumption is often violated in manufacturing settings, where many practical processes tend to follow non-normal or skewed distributions. Therefore, this paper investigates the performance of one-sided VSI EWMA X̅ charts designed under the normal distribution model, when the quality characteristics of interest follow a gamma distribution. Our findings indicate that the in-control average time to signal and the standard deviation of the time to signal for the one-sided VSI EWMA X̅ charts are significantly deteriorated under the gamma distribution. To tackle this problem, this paper proposes new charting parameters specifically derived for the one-sided VSI EWMA X̅ charts under the gamma distribution. Besides, comparative analyses show that the proposed one-sided VSI EWMA X̅ charts exhibit the best detection speed compared to the one-sided Shewhart X̅ and EWMA X̅ charts, when the process follows a gamma distribution. An illustrative application of the one-sided VSI EWMA X̅ chart for monitoring the weight of bias tires in scooter manufacturing is provided at the end of this paper.
Incentives for Skills Supply in a Socially Sustainable Shipping
Authors: Österman Cecilia , Boström Magnus
Published: January 2025

While global demand for shipping continues to grow, the maritime industry is concerned by the impending shortage of skilled seafarers. The challenge is twofold: there is a need to attract and recruit new talent, and to retain, upskill, and reskill existing personnel. This study aims to investigate what motivates students to enrol in and complete a maritime education, and to stay in the profession. A register‐based follow‐up study, a survey questionnaire, and interviews were conducted with former and current students at a maritime upper secondary school in Sweden. Results show that motives include an interest in shipping or boating, or seeking a practical occupation. It has not been possible to identify any major differences between women’s and men’s motives. However, women complete their educations to a greater extent than men. Pivotal for seafarers’ decision to stay in a seafaring profession is having reasonable working and employment conditions, varied work tasks, and a sense of professional pride. Experiences of good companionship and togetherness are important driving forces. Conversely, social exclusion, harassment, and poor working environments influence the decision to leave the maritime industry. Even though women are at increased risk of being exposed to unwelcome behaviour, they choose to stay at sea to a greater extent than their male colleagues. A sustainable skills supply requires a holistic perspective. Satisfied employees who are allowed to grow in their professional role are likely to act as excellent ambassadors and thereby contribute to the continued recruitment of seafarers.
The High Price of Gender Noncompliance: Exploring the Economic Marginality of Trans Women in South Africa
Authors: Shabalala Siyanda Buyile , Campbell Megan
Published: January 2025

This study brings trans women to the forefront of global discourse on gender‐based economic inequalities. Such discussions, often lacking intersectionality and narrowly focused on cis women, have frequently overlooked the distinct economic obstacles trans women face in cisheteropatriarchal societies. Grounded in critical trans politics and intersectionality, this research explores the lives of five trans women in South Africa, examining the contextual norms, practices, and policies that shape their experiences of economic inclusion and exclusion. Findings reveal that economic marginality for trans women is upheld by social institutions prioritizing cisgender norms, reinforcing biology‐based gender binaries that render those existing outside these frameworks vulnerable, disposable, and disenfranchised. This structural economic bias is reflected in four key areas: (a) patriarchal family systems enforce conformity to cisgender expectations through abuse, financial neglect, and rejection, displacing trans women into precarious circumstances, including homelessness and survival sex work; (b) cisnormative workplace conventions demand legal gender alignment as a precondition for organizational access and employability, shutting out trans identities lacking state recognition of their gender; (c) institutionally entrenched anti‐trans stigma creates heightened scrutiny and discrimination during hiring processes; and (d) a gender‐segregated labor system undermines trans women’s ability to participate in both “male” and “female” jobs due to nonadherence to traditional, biologically defined gender roles. These cisgender‐privileging norms intersect with racism and colonial‐apartheid legacies, compounding economic difficulties for trans women. By mapping the economic conditions of historically invisibilized trans women, this study deepens the scope of economic transformation theories. It calls for a trans‐inclusive, intersectional model of economic justice, advocating for institutional cultures that embrace diverse gender expressions beyond static gender classifications.
Mannich Bases of Chromones Containing a 2,3-fused Heterocyclic Ring
Authors:   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Shokol Tatyana , Gorbulenko Natalia ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Tsapko Magdalina ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine, Khilya Volodymyr ,   Taras Shevchenko National University of Kyiv, Kyiv, Ukraine
Published: January 2025

Aminomethylation of chromones сontaining a 2,3-fused heterocyclic ring, such as indolizine, pyrroloquinoline and pyrrolothiazole, namely 9-hydroxy-6/8-alkyl-12H-chromeno[3,2-a]indolizin-12-ones, 10-(alk)oxy-9-R-7Н-сhromeno[3',2':3,4]pyrrolo[1,2-а]quinolin-7-ones and 9-alkyl-8-hydroxy-3-methyl-5-R-11H-chromeno[3’,2’:3,4]pyrrolo[2,1-b][1,3]thiazol-11-ones with bisdialkylaminomethanes was studied. The α-position of the pyrrole ring and the ortho-positions to the hydroxyl group in the benzene ring in the above mentioned systems are active sites and the Mannich reaction can occur at these three positions as shown for 10-hydroxy-7Н-сhromeno[3',2':3,4]pyrrolo[1,2-а]quinolin-7-one yielding 9,11,13-tri(dialkylaminomethyl) derivative. Using the strategy of introducing substituents into the active centers, as well as replacing the OH group with OAlk, it was possible to obtain mono- and diaminomethylation products. The above systems substituted at positions 6 or 8 of the chromone ring afforded di(dialkylaminomethyl) products, respectively 5,7-di(dimethylaminomethyl)-9-alkyl-8-hydroxy-3-methyl-11H-chromeno[3’,2’:3,4]pyrrolo[2,1-b][1,3]thiazol-11-ones, 6,8- or 6,10-di(dimethylaminomethyl)-8/10-alkyl-9-hydroxy-12H-chromeno[3,2-a]indolizin-12-ones and 11,13-di(dialkylaminomethyl)-9-ethyl-10-hydroxy-7Н-сhromeno[3',2':3,4]pyrrolo[1,2-а]quinolin-7-ones. Monoaminomethylated products were prepared for 5-acyl-8-hydroxy-3-methyl-11H-chromeno[3’,2’:3,4]pyrrolo[2,1-b][1,3]thiazol-11-ones. Aminomethylation of 10-alkoxy-7Н-сhromeno[3',2':3,4]pyrrolo[1,2-а]quinolin-7-ones occurred only at the pyrrole ring, giving 10-alkoxy-13-dimethylaminomethyl derivatives. Taking into account that derivatives of 7Н-сhromeno[3',2':3,4]pyrrolo[1,2-а]quinolin-7-one system exhibited hypoglicemic and anabolic activities, the obtained Mannich bases may be of interest as potential biologically active substances.
Eksplorasi aktivitas enzimatik dari fungi endofit laut serta aplikasinya untuk hidrolisis kitosan
Authors: Budiman Muhammad Arief , Tarman Kustiariyah , Hardiningtyas Safrina Dyah , Nurazizah Mirah Afiza
Published: January 2025

Fungi endofit laut merupakan fungi yang berasosiasi dengan jaringan organisme laut, yaitu rumput laut, koral, lamun, bunga karang maupun sedimen di lingkungan laut. Fungi dapat memproduksi metabolit sekunder berupa senyawa enzim ekstraseluler, di antaranya selulase, amilase, pektinase, kitosanase, lipase, maupun protease. Penelitian ini bertujuan menentukan potensi isolat fungi endofit berdasarkan aktivitas kitosanolitik, selulolitik, dan proteolitik untuk mendegradasi kitosan. Isolat fungi endofit laut diisolasi dari jaringan rumput laut, lamun, dan mangrove dari perairan Sukabumi dan Kepulauan Buton, Indonesia. Fungi sebanyak 20 isolat dilakukan penapisan aktivitas enzimatik (kitosanolitik, selulolitik, dan proteolitik) dengan metode difusi agar untuk mengetahui diameter zona bening yang dihasilkan. Proses hidrolisis dilakukan dengan menginokulasi isolat ke media hidrolisis yang berisi koloidal kitosan selama 7 hari. Hasil penelitian menunjukkan 12 isolat memiliki aktivitas kitosanolitik, 8 isolat selulolitik, dan 10 isolat proteolitik. Lima isolat memiliki aktivitas terhadap semua aktivitas enzimatik yang diuji. Dua isolat dengan kode KVA dan BM48A memiliki diamater zona bening kitosanolitik tertinggi. Kedua isolat tersebut diidentifikasi melalui DNA Barcoding sebagai spesies dengan galur Trichoderma harzianum KTR3 dan Aspergillus sydowii KTR50. Rendemen hidrolisat kitosan yang dihidrolisis menggunakan isolat T. harzianum KTR3 dan A. sydowii KTR50 7,44% dan 6,74%. Nilai viskositas yang dihidrolisis menggunakan isolat T. harzianum KTR3 dan A. sydowii KTR50 berturut-turut 21,10 cP dan 9,26 cP serta nilai bobot molekul 9,06 kDa dan 4,47 kDa. Aktivitas enzimatik yang dihasilkan oleh isolat fungi endofit laut memiliki kemampuan dalam mendegradasi kitosan, hal ini dibuktikan dengan terjadinya penurunan nilai viskositas dan bobot molekul kitosan.
GIÁO DỤC VĂN HOÁ TRUYỀN THỐNG TÂY NGUYÊN CHO HỌC SINH CÁC TRƯỜNG TRUNG HỌC PHỔ THÔNG DÂN TỘC NỘI TRÚ
Authors: Quang Hùng Lê , Thị Thúy Hoàng , Văn Ngoan Nông , Thị Thủy Tiên Nguyễn , Thị Hồng Lĩnh Lại
Published: January 2025

The article discusses the results of the process of teaching and learning in the traditional culture of the Central Highlands for students at ethnic boarding high schools. Although teachers and students recognize the crucial role of educating the traditional culture of the Central Highlands, the education activities have not yet achieved high effectiveness. There is a significant discrepancy in evaluating the effectiveness of the educational process between students and teachers, which is due to the different assessment criteria. Additionally, we have made suggestions to improve the quality and effectiveness of educating students about the traditional culture of the Central Highlands at ethnic boarding high schools.
THIẾT KẾ KẾ HOẠCH TỔ CHỨC HOẠT ĐỘNG TRẢI NGHIỆM HÌNH THÀNH PHẨM CHẤT, NĂNG LỰC CHO HỌC SINH TIỂU HỌC
Authors: Thi Lan Anh Vu
Published: January 2025

The General Education Program 2018 mandates experiential activities at schools. These activities are designed to help students apply existing knowledge and experience in practice into new knowledge and skills to form student qualities and competencies. The article showed the process of designing the plan to organize experiential activities to form qualities and competencies for primary school students, supported by a solid scientific basis, proposed principles, and specific illustrations of the steps involved. The design process proposed by this article can help primary school teachers effectively design and organize experiential activities to foster qualities and competencies for primary school students.
ẢNH HƯỞNG CỦA VIỆC ÁP DỤNG PHƯƠNG PHÁP KỈ LUẬT TÍCH CỰC ĐỐI VỚI HỌC SINH TRONG NHÀ TRƯỜNG ĐẾN NĂNG LỰC CẢM XÚC – XÃ HỘI CỦA HỌC SINH TRUNG HỌC PHỔ THÔNG
Authors: Vũ Phương Linh Nguyễn , Thị Thanh Huyền Nguyễn , Bùi Ngọc Anh Nguyễn , Thu Giang Phan , Thùy Linh Nguyễn , Thu Trang Nguyễn
Published: January 2025

The article evaluates the current impact of applying positive discipline methods to students in school on the social-emotional competence of high school students. A survey of 563 students in grades 10, 11, and 12 at North Thang Long High School (Hanoi), Soc Son High School (Hanoi), and Tam Duong High School (Vinh Phuc) shows that positive discipline methods have a moderate impact on students' social-emotional competence with a positive pattern, in which self-awareness has the strongest influence. However, regression analysis indicates that this method does not affect all five components of social-emotional competence, but only the regression model is suitable for self-awareness, relationship management, and responsible decision-making competence.
TỪ PHONG TRÀO TOÁN HỌC MỚI TỚI GIÁO DỤC TOÁN HỌC Ở VIỆT NAM
Authors: Cường Trần , Hoàng Anh Nguyễn , Thị Hoài Thu Nguyễn
Published: January 2025

France and Russia are two great centers in the world of mathematics. For many historical reasons, Vietnam’s education, in general, and mathematics education, in particular, have many connections with and have been influenced both positively and negatively by these countries. This report represents the results of theoretical research on the New Math movement, and the history of mathematics education in France, Russia, and Vietnam. We have conducted several investigations, summarized experience, and interviewed experts to determine these relationships and their influence on Vietnam’s mathematics education.
THỰC TRẠNG PHÁT TRIỂN NĂNG LỰC TỰ HỌC CHO HỌC SINH TRONG DẠY HỌC HOÁ HỌC THÔNG QUA DẠY HỌC KẾT HỢP
Authors: Thị Thuỳ Trang Nguyễn , Thanh Hồng Huỳnh , Thị Ngọc Vân Trần , Đức Hoàng Nguyễn
Published: January 2025

Self-study capacity identified in the 2018 General Educational Curriculum is one of the general capacities that students need to develop. This article explores the current situation of developing self-study capacity for students through blended learning in some high schools in the Central and Southern provinces. This study uses the survey method of a questionnaire with structured questions. To process the data, the Kruskal-Wallis non-parametric mean test was used to evaluate factors that affect the use of ways to develop students' self-study capacity through blended learning. The results obtained show that the gender variable does not influence while the teaching seniority variable only has a slight influence; however, there is a statistically significant difference in the way of developing self-study capacity for students in the Quang Binh, Da Nang, and Kien Giang.
PHÁT TRIỂN NĂNG LỰC VẬN DỤNG KIẾN THỨC KĨ NĂNG ĐÃ HỌC THÔNG QUA BÀI DẠY STEAM THÙNG Ủ GIẤM CHUYÊN DỤNG TRONG CHỦ ĐỀ “CHẤT VÀ SỰ BIẾN ĐỔI CỦA CHẤT” Ở MÔN KHOA HỌC TỰ NHIÊN LỚP 8
Authors: Thị Kim Ánh Nguyễn , Văn Duyên Em Võ , Quý Bảo Nguyễn
Published: January 2025

STEAM education method helps students connect learned knowledge with practice. This article aims to design a STEAM-based lesson titled Specialized vinegar fermentation barrel within the theme of "Substances and their transformations" focusing on enhancing the representative competency of students in Grade 8 Natural Sciences. The study involved conducting a survey and implementing pedagogical experiments based on a cross-sectional survey method and a pre-and-post-intervention experimental design with randomized groups. After the intervention, the proportion of students achieving the highest competency level (Level 3) increased significantly, from below 20% to 40-50%, and the average representative competency score improved from 6.06 to 7.44 on a 10-point scale. The results of the pedagogical experiment demonstrated positive development in learners’ competencies and highlighted the feasibility and necessity of integrating STEAM themes to foster representative competency.
Correlation of hypertensive disorder of pregnancy gestosis score with severity of hypertensive disorder of pregnancy
Authors: Jaiswal Jyoti , Shrivastava Ankika , Keshkar Minu
Published: January 2025

Background: Hypertensive disorder of pregnancy (HDP) is the leading cause of maternal and perinatal mortality and morbidity. Among all maternal deaths, 19% deaths are due to hypertension in pregnancy. To calculate HDP gestosis score in women diagnosed with hypertensive disorder of pregnancy and find its correlation with severity of disease.
Methods: The study was conducted in the department of obstetrics and gynaecology, Pt. JNM Medical College Raipur. It is a hospital based prospective observational study. Women with hypertensive disorder of pregnancy admitted in hospital after 20 weeks of gestation were taken as study population. Previous ANC records and medical records were analysed and direct questions were asked to collect data and HDP gestosis score was calculated and its correlation with severity of hypertensive disorder was seen.
Results: The mean HDP gestosis score in patients of GHTN, Preeclampsia, Eclampsia, HELLP Syndrome was 4.28, 4.38, 4.36 and 3.5 respectively (p value 0.857- no significant association).  Patients with BMI>30, excessive weight gain during pregnancy, obesity and patients with previous history of HDP have greater risk of developing severe form of disease.
Conclusions: HDP gestosis score is not a good indicator to detect severity of disease though it helps in identification of hypertensive disorder of pregnancy.
PRÁTICAS TRADICIONAIS DO FILÓ ITALIANO EM UMA PERSPECTIVA DE PERFORMANCES CULTURAIS
Authors: Rathke Sandra Beatriz , Durán Rocca Luisa Gertrudis
Published: January 2025

Este artigo visa analisar as relações socioculturais do filó italiano a partir da performance do Filó de Vila Flores-RS. Parte-se de uma abordagem qualitativa e exploratória, tendo como fundamento metodológico a análise das performances culturais apresentados por Erving Goffman, Richard Schechner e Victor Turner. Busca-se verificar como as tradições do filó são simbolicamente ressignificadas e como as mudanças nas estruturas sociais transformam os modos de fazer e interpretar os elementos culturais identitários para a manutenção e integração dos ítalo-brasileiros. Nesse contexto, os filós ganham novos formatos, perpassando de encontros familiares a comunitários e turísticos. Essas transformações também podem ser verificadas no campo simbólico, a partir dos elementos que compõem as práticas culturais, reforçando o mito da italianidade.
CARTOGRAFIA MEDIEVAL NO LIBER FLORIDUS DO LAMBERT DE SAINT-OMER
Authors: Mendes Jefferson
Published: January 2025

O presente artigo tem como objetivo explicar o conceito de globalidade na cartografia medieval partindo da enciclopédia intitulada Liber floridus [Livros das Flores]. Lambert, Cônego de Saint-Omer, foi um monge beneditino francês (ca. 1061-1150) que estudou teologia, gramática e ficou conhecido como homem de grande erudição. Neste tratado Lambert compilou uma crônica ou história que vai até o ano de 1119; contém vários mapas, incluindo um mappamundi, que originalmente, como o texto, tem uma data pelo menos anterior a 1125. Por fim, o artigo propõe uma análise dos manuscritos que sobreviveram até a contemporaneidade: os manuscritos de Ghent, Wolfenbüttel e Paris. Como metodologia, emprega-se a ideia de globalidade no medievo aos estudos da História da Arte Global.
NOVA DIREITA INTERNACIONAL ENTRE O FASCISMO CLÁSSICO E O NEOFASCISMO METAPOLÍTICO
Authors: Vasconcelos Francisco
Published: January 2025

O presente texto consiste em um ensaio com o objetivo de analisar disputas conceituais sobre o fascismo a partir das discussões sobre a nova extrema direita e suas ramificações internacionais. Pretende-se demonstrar que o argumento de Umberto Eco (2018) a respeito do “fascismo eterno” é passível de utilização desde que passe por uma adequação analítica, em cotejo com as contribuições de Roger Griffin (2006), Robert Paxton (2007) e Ruy Fausto (2022). Busco sedimentar o argumento acima proposto por meio de uma análise crítica do livro de João Eigen, O Fascismo como ideologia e a revolta totalitária (2023).
EURYDICE PIRES DE SANT'ANNA (1919 - 2015)
Authors: Santos Davilene Souza , Barbosa Andréa da Rocha Rodrigues Pereira , Rosa Flávia Goulart Mota Garcia
Published: January 2025

O texto apresenta a trajetória de Eurydice Pires de Sant’Anna. Como bibliotecária, professora e diretora da Escola de Biblioteconomia e Documentação da Universidade Federal da Bahia, atuou em diversas frentes em prol da preservação da memória da saúde na Bahia e no Brasil. Além de ter exercido a função de secretária da Gazeta Médica da Bahia, no ressurgimento da revista em 1966, Eurydice colaborou com a biblioteca da Fundação Oswaldo Cruz, na unidade da Bahia, a qual possui o seu nome como homenagem. De natureza histórica, a pesquisa busca apresentar as contribuições da profissional, que permitiu a disseminação organizada dos números da Gazeta, por meio do Índice Cumulativo (1866-1976) e colaborou com a publicação da Bibliografia Brasileira sobre Doença de Chagas (1909-1979) e a Bibliografia Brasileira de Esquistossomose (1908-1970).
MEMÓRIA HISTÓRICA DA INDEPENDÊNCIA E A TELEDRAMATURGIA
Authors: Bertelli Duarte André Luis
Published: January 2025

O artigo busca interpretar as maneiras como a memória histórica opera na elaboração e circulação de produtos culturais televisivos, mais especificamente as minisséries históricas, a partir de duas teledramaturgias produzidas sobre o processo de independência política do Brasil e exibidas na televisão aberta: O Quinto dos Infernos (Carlos Lombardi, 2002) e IndependênciaS (Luiz Fernando Carvalho, 2022).
TRAJETÓRIA DE VIDA, PRÁTICAS CULTURAIS E TRADICIONALIDADE DE UM PESCADOR NO PANTANAL NORTE DO BRASIL
Authors: Pereira da Silva Luciano
Published: January 2025

Propomos reflexões sobre a relação entre biografia, história oral e cultura no Pantanal brasileiro por meio das narrativas de Lourenço Pereira Leite, autodeclarado pescador profissional tradicional de terceira geração e pantaneiro. Lourenço é detentor e conhecedor de saberes e fazeres que integram a identidade nacional e local. A sua trajetória de vida permite compreender vivências de grupos subjugados e aspectos genealógicos de origem indígena e escravizados; associar práticas culturais com território e polemizar sobre justiça social; refletir afetos, conjunturas políticas e memórias traumáticas. Metodologicamente, o levantamento sobre as narrativas de Lourenço evidencia relações interdisciplinares, tendo por base informações sobre etnia, gênero, cultura material e religiosidade.
CONTINUOS DOS CHANCELERES
Authors: Ferreira Frederico
Published: January 2025

O artigo examina a trajetória profissional de Braz José de Oliveira (1859-1935) e de seu filho Braz José de Oliveira Júnior (1897-1974) como funcionários da Secretaria de Estado das Relações Exteriores do Brasil, no período entre 1885 e 1962. O estudo tem como objetivo analisar a trajetória profissional de duas gerações de pessoas negras no Itamaraty, entre o final do século XIX e a primeira metade do século XX, explorando o percurso desses indivíduos na estrutura funcional do órgão. Além disso, situa essa análise em um contexto mais amplo da evolução da política externa brasileira em relação à África, destacando as diferentes formas pelas quais as questões raciais influenciavam sua posição funcional e ascensão profissional.
MEMÓRIA (AUTO)BIOGRÁFICA E MEMÓRIA HISTÓRICA
Authors: Saddi Chaves Aline , Zanelatto Santos Rosana Cristina
Published: January 2025

Inaugurado em 2019, o Acervo Maria da Glória Sá Rosa, situado na Unidade de Campo Grande da Universidade Estadual de Mato Grosso do Sul (UEMS), é um lugar de memória com livros, revistas, diários e materiais audiovisuais, além de objetos pessoais da residência de Rosa. Neste artigo, buscamos compor um quadro da subjetividade de Rosa, com o propósito precípuo de relacionarmos sua (auto)biografia na confluência com a história de Mato Grosso do Sul, assumindo a indissociabilidade entre a memória (auto)biográfica de Glorinha e a memória histórica desse estado brasileiro, e a importância desse fator para a constituição do Acervo. Dois aspectos orientam este percurso: o acervo como coleção e a memória como instância dialética do tempo vivido e do tempo histórico.
Palavras-chave: Acervo, Coleção, Memória, Maria da Glória Sá Rosa.
JOÃO FRANCISCO DE SOUZA E LOURENÇO BORGES JUSTINIANO
Authors: Cancela Francisco
Published: January 2025

Estudos recentes têm demonstrado a participação dos indígenas na construção do Brasil independente, principalmente por meio da atuação de vereadores, juízes e capitães-mores nas vilas de índios. O protagonismo indígena nesse contexto foi deveras favorecido pelo alargamento do espaço político e politização das lideranças indígenas no período de implantação do Diretório dos índios, que assegurou o autogoverno indígena, ainda que submetido a um rígido regime tutelar orientado por um programa de “reforma dos costumes”. Este artigo recupera fragmentos da trajetória de vida de duas lideranças indígenas envolvidas no processo da independência na Bahia: João Francisco de Souza e Lourenço Borges. Com a descrição e análise de suas atuações, busca-se demonstrar as diversas formas de participação dos indígenas na construção do Brasil independente, evidenciando a inserção autônoma e proativa das lideranças indígenas naquele contexto e demonstrando como a escrita de pequenas trajetórias de vida pode revelar, ainda que de forma fragmentada, a complexidade daquele processo.
MEMÓRIA, ATIVISMO E VISIBILIDADE
Authors: Alencar Soares Lima de Passo Leandra , Nobre Lobo Tayssa
Published: January 2025

A ativista Rosely Roth foi uma figura pioneira para a história do movimento lésbico brasileiro, sobretudo no período da Ditadura Militar, momento em que o país foi assolado por censura, violência e privação de direitos. Neste sentido, tem-se como objetivo resgatar o legado de Rosely Roth para o movimento lésbico-feminista no Brasil, refletindo acerca de sua importância por intermédio de registros como o do boletim ChanacomChana (1982-1987), pela perspectiva de estudos acadêmicos e textos de outras naturezas que retrataram as questões de gênero, sexualidade, memória e vivências lésbicas e LGBTQIAP+ no âmbito nacional e por materiais audiovisuais. Desse modo, concluiu-se que a pesquisa possibilitou não apenas destacar a vida, a voz e as ações de uma mulher que contribuiu para a visibilidade lésbica, como também almejou proporcionar debates acerca da participação política das mulheres no cenário brasileiro.
Role of Laser Etching on Shear Bond Strength between Recast Nickel-Chromium Alloy and Dental Ceramic — an Experimental Study
Authors: Sriman Janardanan , Chidembaranathan Ahila Singaravel , Balasubramanium Muthukumar
Published: January 2025

Objectives: The purpose of this study was to investigate the effect of laser etching, air bone particle abrasion and acid etching on shear bond strength between re-cast Nickel Chromium alloy and dental ceramics.
Materials and Methods: A master die was made according to ISO 9693; TR (11406). A total of 40 samples were fabricated with 50%w nickel-chromium alloy and 50%w previously casted nickel-chromium alloy. The samples were divided into four groups based on the surface treatment applied. Group 1 served as the untreated control, Group 2 underwent etching with 10% hydrochloric acid (HCl), Group 3 received surface treatment via air-borne particle abrasion, while Group 4 was conditioned using a pulsed Nd:YAG laser. Shear bond strength between ceramic and metal was tested using a universal testing machine and the mode of debonding was evaluated using scanning electron microscope. The obtained values were statistically analyzed using one way ANOVA and Tukey’s HSD Post Hoc test.
Results: The mean values of shear bond strength for Group 1 was 22.69±2.63Mpa, Group 2 was 27.05±2.15Mpa, Group 3 was 34.46±2.46Mpa and Group 4 was 39.54±2.16Mpa. The difference among the groups was significant (P<0.001). Hence there was a statistical difference seen in shear bond strength between control and acid etching, air borne particle abrasion and laser etching.
Conclusion: Laser surface conditioning produced more surface roughness compared to acid etching and air bone particle abrasion on re-cast Nickel Chromium alloy which increased the shear bond strength markedly between recast nickel-chromium alloy and dental Ceramic.
Color Stability of Orthodontic Elastomeric Ligatures in the Oral Environment: A Clinical Trial
Authors: Mazhari Marzieh , Ashrafi Mehdi Yaghoubi , Gholamian Sara , Moradinejad Mehrnaz
Published: January 2025

Objectives: Despite the recent advances in orthodontic appliances, color change of elastomeric ligatures over time remains a problem causing patient dissatisfaction. This study aimed to assess the color stability of different types of orthodontic elastomeric ligatures in the oral environment.
Materials and Methods: This clinical trial was conducted on 67 patients. After applying the exclusion criteria, 11 participants were excluded, and 56 remained. Four different brands of elastomeric ligatures namely Ortho Technology, Ortho Organizers, American Orthodontics, and SIA were randomly used in the four quadrants of each patient (n=14 from each brand). Discoloration of ligatures was scored in the oral cavity by orthodontists and patients on the day of placement (T0) and 28 days later (T1). Photography and CIE L*a*b* color space were used to assess the color change (∆E). Data were analyzed by the Kruskal-Wallis and Bonferroni tests.
Results: All brands showed discoloration. The highest ∆E was identified in SIA and Ortho Technology, while the lowest was recorded in Ortho Organizers. The lowest ∆b (yellowness) and the greatest reduction in L* (lightness) and ∆a (redness) were observed in Ortho Organizers. According to the opinion of patients and orthodontists at T0 and T1, SIA was the least visible followed by Ortho Technology. No significant difference was found between orthodontists and patients at T0 and T1 regarding the visibility of ligatures (P>0.05).
Conclusion: After 28 days, all brands of elastomeric ligatures showed considerable discoloration. Ortho Organizers showed the highest color stability.
A Primary Intraosseous Rhabdomyosarcoma of Mandible: Report of a Rare Case and Review of literature
Authors: Mashhadi Shabnam , Garajei Ata , Aminishakib Pouyan
Published: January 2025

Rhabdomyosarcoma is a rare soft tissue malignant neoplasm with striated muscle differentiation often found in the head and neck region. In our case a 33-year-old man presented with a bulging mass near his right mandibular second molar tooth, identified as a unilocular destructive lesion on an X-ray. An incisional biopsy confirmed rhabdomyosarcoma, leading to a hemi-mandibulectomy. Histopathologic findings showed spindle and rhabdoid cells with positive immunoreactivity to Desmin, myogenin and myoD1. In conclusion, it is crucial to differentiate rhabdomyosarcoma from other more common intraosseous malignancies, and using Desmin staining as part of the initial immunohistochemical panel can aid in the diagnosis process.
A New Approach to COVID-19 Detection Using Alexnet From Chest CT Images
Authors: Homayonfar Leila , Joudaki Saba
Published: January 2025

Background: At the beginning of 2020, the pneumonia-like COVID-19 virus spread rapidly worldwide. With the emergence of this dangerous virus, work, and daily life have become very difficult. To control this virus, all the centers are closed and quarantined by the government and the countries of the world. Every day, many people from all over the world die due to COVID-19. Many efforts are being made in all fields to diagnose and treat people infected with this virus. For this reason, many researchers started working on identifying this virus and its types. The Scientifics, in computer science, did not sit idle either. Method: In some studies, different image processing methods and algorithms have been used to extract the edge features of the Computed Tomography (CT) images of the lung. In this clinical-computerized study, lung CT images of non-infected and infected people from different hospitals in Lorestan province were used. This collection has 90 stereotypes of images in jpg format of CT scans of people's lungs, each file has more than 200 images from different angles of lung imaging. The preprocessing methods were the first step of the research. In the second phase, edge detection was applied to the dataset to get the highest accuracy rate. Consequently, a classification Convolutional Neural Network (CNN)-AlexNet architecture was used to reach the final aim. Results: The results show that the average accuracy rate of image edge extraction with a threshold value of 0.1 is 93% and the accuracy rate of AlexNet architecture classification is 100%. The proposed method helps physicians to improve disease diagnosis from lung CT images to achieve a more accurate detection rate. Conclusion: This study shows that the CNN-AlexNet architecture effectively increases the diagnosis accuracy rate than the other methods. It is suggested that educational programs for researchers in the field of disease detection from radiology images be provided and that the effectiveness of different types of deep learning methods be compared in future studies.
The Effect of Sensorimotor Synchronization on Gait Spatiotemporal Parameters in Women with Multiple Sclerosis
Authors: Memarmoghadam Mozhgan , Shahrak Mansoureh , Orangi Behzad Mohammadi , Correale Luca , Peyré-Tartaruga Leonardo A.
Published: January 2025

Introduction: Although gait rehabilitation based on sensorimotor synchronization (auditory and visual) is stimulating for patients with neurological disorders and older people, there is little evidence in patients with multiple sclerosis (MS). Therefore, this study investigates the effect of synchronization with rhythmic visual stimulus on gait spatiotemporal parameters, bilateral symmetry, and locomotor rehabilitation index in women with MS.
Materials and Methods: Spatiotemporal parameters, bilateral symmetry and the locomotor rehabilitation index were obtained before and after 6 weeks (three times per week, 30 min each session) of locomotor training. We compared these findings between two groups of 10 patients, each with an expanded disability status scale (EDSS) of 3-6, who performed the gait training with or without rhythmic visual stimulus.
Results: Time×group interaction effect indicated greater significant improvements in the group with rhythmic visual stimulus in self-selected walking speed (SSWS) (P=0.041), stride frequency (P=0.009), stance time (P=0.021), and locomotor rehabilitation index (P=0.036). Stride length, double stance, and swing time were improved in the group with rhythmic visual stimulus, but this change was not significant. Also, bilateral symmetry did not change significantly in the experimental group. Therefore, rhythmic visual stimulation can help improve functional mobility and locomotor rehabilitation index in patients with MS, especially due to the improvements in the temporal parameters of gait.
Conclusion: Therefore, synchronizing gait with a rhythmic visual stimulus can be an effective therapeutic strategy to improve gait and main temporal parameters in patients with MS.
Dynamics of post-COVID asthenia: review
Authors: Ageykin A. V. , Usenko D. V. , Gorelov A. V. , Melnikov V. L. , Aftaeva L. N. , Miltykh I. S. , Botova V. S. , Kikicheva A. A. , Lopatina V. A. , Dolgachev M. V.
Published: January 2025

Novel coronavirus infection (COVID-19) is a highly contagious respiratory disease caused by the SARS-CoV-2 coronavirus. COVID-19 is known to affect both the respiratory, digestive, excretory, and nervous systems. The incidence of chronic effects of the novel coronavirus infection is now on the rise. This paper is aimed to review the epidemiology, pathogenesis and components of post-COVID asthenia. Material and methods. Sixty-three references published between 2005 and 2023 and indexed in the PubMed, CyberLeninka, Russian Citation Index, Semantic Scholar, and Google Scholar databases were included in this review. Results. The study revealed the most common symptoms of post-COVID asthenia are fatigue, muscle weakness, shortness of breath, sleep disturbances, anxiety or depression, impaired memory and cognitive functions (“foggy brain”), hyposmia, and reduced work performance. One of the specific symptom complexes for post-COVID is asthenovegetative syndrome, the incidence of which according to the meta-analysis ranged from 13.1 to 72.8 %, with a cumulative percentage of 45 ± 0.05 % (95 % confidence interval 0.31–0.54). Conclusions. Nowadays, post-COVID asthenia is becoming extremely severe. It is necessary to review in detail the available data on the epidemiology and components of post-COVID asthenia in order to develop an adequate strategy for post-COVID management.