Latest Edition Highlights (Issue 39)

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FROM AIR FORCE TO HYPERSONIC FUTURE: ÉLCIO GERÔNIMO DE OLIVEIRA'S JOURNEY IN BRAZILIAN AEROSPACE DEVELOPMENT (ENGLISH VERSION)

Introdução: A entrevista com Élcio Gerônimo de Oliveira, conduzida pelo repórter Luis, apresenta a trajetória profissional de um pesquisador brasileiro com experiência na Força Aérea Brasileira e no meio acadêmico, com foco em sistemas espaciais e veículos hipersônicos. Objetivos: Documentar a carreira e contribuições de Élcio para o desenvolvimento aeroespacial brasileiro, destacando sua transição da carreira militar para a acadêmica e sua participação em projetos estratégicos, especialmente o projeto 14X. Métodos: A entrevista foi estruturada em blocos temáticos, abordando a carreira militar, a experiência acadêmica e, com maior detalhamento, o envolvimento no projeto do veículo hipersônico 14X. Foram realizadas perguntas abertas, permitindo ao entrevistado compartilhar sua experiência e conhecimento técnico. Resultados: Élcio descreveu sua progressão na Força Aérea Brasileira, desde pesquisador até vice-chefe da Diretoria de Espaço, destacando o desenvolvimento de veículos lançadores, sistemas de navegação inercial e o projeto SARA. Relatou sua transição para a carreira acadêmica, incluindo sua experiência como professor na Universidade de Luleå, na Suécia. Élcio detalhou sua coordenação no projeto 14X, um veículo hipersônico que alcançou Mach 7, com perspectivas de atingir Mach 10. Discussão: A entrevista revela a importância da cooperação internacional e da transferência de tecnologia, exemplificada pela doação do primeiro laboratório de hipersônica do Brasil. Evidencia também os desafios técnicos na construção de veículos hipersônicos e o potencial dessas tecnologias para aplicações militares e civis. Conclusão: A carreira de Élcio Gerônimo de Oliveira exemplifica a contribuição brasileira para pesquisa aeroespacial avançada, demonstrando a capacidade nacional de desenvolver tecnologias estratégicas como veículos hipersônicos, apesar das limitações de recursos, e apontando possibilidades futuras para o transporte e exploração espacial.
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TREATMENTS FOR ACUTE LYMPHOBLASTIC LEUKEMIA: A COMPARISON BETWEEN TISAGENLECLEUCEL AND CLOFARABINE

Background: Acute lymphoblastic leukemia (ALL) is a heterogeneous hematological malignancy predominantly affecting individuals under 20 years of age. Traditional chemotherapy, such as clofarabine, has shown efficacy; however, novel immunotherapeutic strategies like tisagenlecleucel (Kymriah®) have significantly altered the treatment paradigm. Aim: This study aimed to perform a comparative analysis of tisagenlecleucel, a CAR-T cell therapy, and clofarabine, a second-generation purine nucleoside analog, evaluating their mechanisms of action, therapeutic benefits, limitations, and clinical applicability across diverse patient populations. Methods: A systematic comparative evaluation was conducted, encompassing pharmacological characteristics, mechanisms of action, treatment protocols, efficacy, safety profiles, and clinical indications of both agents. The analysis considered pharmacokinetic and pharmacodynamic data and included patient demographic variables. Results: Tisagenlecleucel demonstrated high efficacy in refractory B-cell ALL, with durable responses and a blood half-life of 128 days, but with notable immune-related adverse effects such as cytokine release syndrome. Clofarabine, effective across a broader patient population, acts via multiple antitumor mechanisms but carries significant toxicity risks, including infection and sepsis. Discussion: The therapies present distinct clinical profiles: tisagenlecleucel offers targeted immunotherapy with high specificity but requires specialized infrastructure and management of immune toxicities. Clofarabine is more widely accessible and applicable, but is associated with conventional chemotherapy-related side effects. Treatment accessibility and cost differ markedly between the two. Conclusions: Therapy selection should be personalized based on patient-specific factors and institutional resources. Tisagenlecleucel is ideal for pediatric and young adult patients with relapsed/refractory B-cell ALL in CAR-T-capable centers, while clofarabine remains a viable option for broader ALL populations, particularly when genetic therapies are not feasible. Further research is needed to optimize therapeutic strategies and improve access to advanced treatments.
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INTERVIEW WITH DEPUTY VICE CHANCELLOR DR. O. A. OMOTESHO, UNIVERSITY OF ILORIN, NIGERIA (ENGLISH VERSION)

Background: The University of Ilorin, founded in 1975 in Nigeria, has evolved from 3 to 16 faculties, becoming the country's most sought-after institution for the past two decades. Aims: To document the institutional evolution, identify the most demanded programs, assess scientific output, examine internationalization strategies, and understand strategic development objectives. Methods: Structured interview with Vice-Chancellor Dr. Olubumi Abayomi Omotesho, following a standardized protocol covering historical, academic, scientific, and strategic aspects of the institution, under Creative Commons license format. Results: The university expanded to 16 faculties in 49 years. The most demanded programs are Medicine and Nursing, followed by Pharmacy, Law, Engineering, and Accounting. Areas with the highest scientific output: Medicine, Biological/Agricultural Sciences, and Engineering. It offers 340 postgraduate programs with approximately 7,523 students. There is a dedicated infrastructure for internationalization, with plans for international accommodations. Discussion: The predominance of healthcare courses reflects global employability trends. Research aligned with Sustainable Development Goals demonstrates a contemporary vision. The institutional goal (number one in Nigeria, top 10 in Africa, top 500 globally) shows a measurable strategic approach. Commitment to internationalization aligns with global education trends. Conclusions: The institution exemplifies an evolving African university focused on academic excellence, scientific relevance, and internationalization. The prioritization of student-centered development, clear positioning goals, and international collaboration initiatives establish solid foundations for its contribution to regional and global knowledge.
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General information

SOUTHERN JOURNAL OF SCIENCES

    General information about this journal
  • Title: SOUTHERN JOURNAL OF SCIENCES
  • Short Title: South. J. Sci.
  • ISSN: 2764-5959 (Online); ISSN: 2764-5967 (Print)
  • Universal Decimal Classification (UDC): 001
  • Review Process: Double-Blind Peer-Review
  • Accessibility: Platinum Open Access, NO-APCs.
  • Digital preservation: Portico
  • Frequency of Publication: biannual [2 issues per year]. Journal publication schedule
  • DOI: 10.48141/2764-5959
  • Website: https://www.sjofsciences.com/
  • Country: BRAZIL
  • Publisher: Araucária - Scientific Association.
  • Language of Publication: ENGLISH / PORTUGUESE*
  • *Year that the Journal started accepting manuscripts in Portuguese: 2020
  • First issue year: 1993
  • Free full text: Yes
  • Indexed in: Index Copernicus; Latindex, and I2OR.
  • Formerly known as the Southern Brazilian Journal of Chemistry (1993 to 2021).
  • Former ISSN: 2674-6891 (Online); Former ISSN: 0104-5431 (Print).
  • Website last update: 06/07/2025.

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REUSE RESIDUAL SAND CASTING FOR PRODUCTION OF CONCRETE BLOCKS

Sand casting is a viable waste as an alternative raw material, regarding a good solution in the production of concrete blocks. The use of sand casting to produce concrete blocks is performed by about 80% of the productive capacity of the company considered in this study. Thus, this work aims to make an improvement by applying fuzzy logic. The methodology was applied from the formulation of ranking criteria, which improved the production process. Therefore, after the implementation of the established criteria, was achieved an improvement of about 10%. Thus, the results achieved can help companies, generating alternatives with more excellent reliability and assertiveness. Moreover, Fuzzy is a methodology that provides strong support for decision making, supporting subjective and intuitive criteria.
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CALCULATION FOR REDEMPTION OF COMPACT TESTING BY THE PROCTOR METHOD THROUGH NEWTON’S GRAVITATIONAL POTENTIAL ENERGY

Throughout this article, a study on the characteristics of the compaction test by the Proctor Method, regulated by ABNT NBR-7182, which is used to verify the degree of soil compaction, will be approached in order to broaden the discussion and raise points that demonstrate the urgent need to make it more accurate, efficient and safe. Through qualitative and quantitative research carried out by the authors of this article, it sought to collect data through a questionnaire for professionals in the field of geotechnics in the “Quadrilátero Ferrífero” region in Minas Gerais. In addition to other relevant data for the topic, it was raised that of the 22 professionals from the participating region, 72.7% of the total belief that the manual compaction test can be manipulated by an operator during the test execution, failing to generate results reliable, thus showing the importance of the proposed theme. In this way, we initially sought to correlate the Compaction Energy formula idealized by Ralph Proctor with Isaac Newton’s Gravitational Potential Energy formula and, through it, present the resizing, which may enable the construction of manual, semi-automatic human propulsion machines (not or making the automated ones that depend on electricity available to the market. In conclusion, from the mathematical calculations, it was possible to evidence the use of Newton’s Gravitational Potential Energy to constructnew equipment to carry out this test.
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ANALYTICAL METHODS FOR METHANOL DETECTION IN ALCOHOLIC BEVERAGES: A COMPARATIVE REVIEW OF CLASSICAL, COLORIMETRIC, AND CHROMATOGRAPHIC APPROACHES

Introduction: The detection of methanol in alcoholic beverages represents a critical public health issue, particularly in light of the recent outbreak of poisonings in Brazil, which registered 58 confirmed cases and 15 deaths through October 2025. Methanol's toxicity, with an estimated lethal dose ranging from 0.5 to 1.5 g/kg, requires reliable analytical methods for health surveillance. Brazilian legislation establishes a maximum limit of 20 mg/100 mL of anhydrous alcohol; however, the need for accessible screening methods in field settings remains an important challenge. Objective: To critically compare three analytical methods for methanol determination: classical qualitative methods (Lucas Test and dichromate/Schiff), Brazilian colorimetric method, and gas chromatography with flame ionization detector (GC-FID), evaluating their performance and applicability in resource-limited contexts. Methods: Theoretical-comparative approach through critical analysis of specialized literature and normative technical documentation. Methods were evaluated according to: operational principle, sensitivity (LOD/LOQ), selectivity, operational complexity, analysis time, and practical applicability. Results: The Lucas Test is not applicable for methanol detection. Colorimetric methods showed moderate sensitivity (LOD ~20-160 mg/100 mL), a 10-30-minute execution time, low operational complexity, and excellent portability. The Brazilian method presented chemical equivalence with international standards, differing only in the type of reading performed. GC-FID has shown superior sensitivity (LOD ≤ 1 mg/100 mL) and high specificity, but it requires extended time (~45-60 minutes), complex laboratory infrastructure, and specialized operators. Sugars interfere with colorimetric methods. Conclusions: The methods are complementary within a hierarchical system. Colorimetric methods enable rapid field screening, while GC-FID serves as the confirmatory method for forensic analyses. We recommend implementing integrated protocols that combine in situ colorimetric screening with GC-FID confirmation in accredited laboratories for effective health surveillance.
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SOUTHERN JOURNAL OF SCIENCES

The SOUTHERN JOURNAL OF SCIENCES publishes articles in Chemistry, Physics, Mathematics, Biology, Pharmacy, Medicine, Engineering, Industrial Science, Agriculture, and related interdisciplinary areas and is intended to fill a gap in terms of scientific information worldwide. All manuscripts can be published either in English or Portuguese, with tile, abstracts, and keywords in English. At present, there are NO PUBLICATION FEES. Editors will cover web hosting, open access, DOI number, and other service costs.

We have set high standards for the articles to be published by ensuring strong but fair refereeing by at least two reviewers. We hope that this Journal will provide a forum for disseminating high-quality research in chemistry and related areas and are open to any questions and suggestions. Starting in 2020, the SOUTHERN JOURNAL OF SCIENCES will have two issues per year (June and December).

Thank you very much for choosing the SOUTHERN JOURNAL OF SCIENCES to publish your paper!
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