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THE REVOLUTION IN AMERICAN PUBLIC HEALTH POLICY: PETROLEUM-BASED DYES AND THE CHRONIC DISEASE EPIDEMIC

Background: The American food regulatory landscape has historically been influenced by industry interests, resulting in the widespread use of petroleum-derived synthetic food dyes banned in European countries. Chronic disease rates in American children have increased from 3% in the 1960s to approximately 60% currently, with annual healthcare costs reaching $1 trillion. The appointment of Robert F. Kennedy Jr. as Secretary of Health and Human Services marks a paradigmatic shift toward transparency and industry accountability in food safety regulation. Aim: This forum analysis examines Kennedy Jr.'s revolutionary approach to food safety regulation, particularly his confrontational stance against petroleum-based food additives exemplified by his statement, "if they want to eat petroleum, they should add it themselves at home" and evaluates the broader implications for American public health policy and global regulatory standards. Methods: Critical analysis of Kennedy Jr.'s public policy statements, examination of epidemiological data trends, and evaluation of proposed regulatory frameworks through content analysis of official speeches and policy declarations from the Department of Health and Human Services. Results: Kennedy Jr.'s administration targets the systematic elimination of synthetic food dyes through industry partnerships, scientific transparency initiatives, and restoration of rigorous research standards. His confrontational rhetorical approach, compared to Mike Tyson's boxing style, has generated unprecedented industry cooperation with food companies "calling almost daily" seeking compliance guidance. The strategy combines voluntary industry agreements with open-source information databases and enhanced FOIA access. Discussion: This confrontational rhetoric represents unprecedented directness in health policy communication, challenging decades of established regulatory practices. The approach prioritizes scientific transparency over diplomatic language, generating both media attention and voluntary industry engagement that traditional regulatory pressure failed to achieve. Conclusions: Kennedy Jr.'s revolutionary stance may establish new global standards for food additive oversight, prioritizing public health over commercial interests through evidence-based policymaking and industry accountability measures. This paradigm shift from reactive to preventive regulatory models could influence international food safety governance and restore American leadership in global health policy.
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RESEARCH LANDSCAPE OF REPURPOSED MEDICATIONS IN CANCER TREATMENT: A MULTI-DATABASE BIBLIOMETRIC ANALYSIS OF ELEVEN OFF-PATENT THERAPEUTICS

Background: Drug repurposing offers potential advantages for cancer therapy development, particularly when utilizing medications with established safety profiles and expired patents. While individual repurposed medications have been investigated for oncological applications, comprehensive comparative analyses of research distribution patterns across multiple therapeutic candidates appear limited in the literature. Understanding these patterns may provide insights into research priorities and potential knowledge gaps. Aim: This exploratory study was designed to quantify and compare the volume of scientific literature examining the anticancer potential of eleven selected off-patent medications across different pharmacological classes. Methods: Bibliometric searches were conducted across five databases (Google Scholar, BVS, PubMed, NIH, and Science.gov) using standardized search terms combining each medication name with "cancer" and "cancer treatment." The selected medications included ivermectin, fenbendazole, mebendazole, albendazole, metformin, propranolol, disulfiram, valproic acid, thalidomide, dexamethasone, and hydroxychloroquine. Basic statistical analyses were performed to examine the distribution patterns and correlations within the database. Results: The search yielded 3,226,066 total publications with considerable variation in distribution patterns. Dexamethasone accounted for the largest proportion (1,538,058 publications, 47.68%), followed by metformin (697,172 publications, 21.61%). Some medications with smaller overall publication volumes demonstrated higher proportions of treatment-specific research, such as fenbendazole (87.82%), disulfiram with copper (86.54%), and hydroxychloroquine with zinc (75.21%). The Herfindahl Index indicated a high concentration of research attention (0.2870). Discussion: The findings suggest substantial variation in research attention across the selected medications. While some medications dominate the literature, others with focused treatment-specific research may warrant further investigation. The inverse relationship observed between total publication volume and treatment specificity suggests that research patterns in this field may be more complex than absolute publication counts indicate. Conclusions: This preliminary bibliometric assessment reveals an uneven distribution of research attention among repurposed medications being investigated for cancer applications. These patterns may inform future research prioritization, though further qualitative analysis would be valuable to assess the clinical significance of these quantitative observations.
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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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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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EXPERIMENTAL STUDY OF THE INFLUENCE OF TEMPERATURE ON PASTEURIZATION OF PÊRA RIO IN NATURA ORANGE JUICE

Background: Heat treatment is one of the most used methods to preserve food, such as orange juices, which are an excellent source of ascorbic acid. To avoid vitamin C degradation and reduce loss, fast heating is recommended. However, little is known about heat transfer during juice pasteurization. Aim: Therefore, this work aimed to determine the vitamin C content and the convective heat transfer coefficient in the pasteurization of orange juice. Methods: To perform the experiment, in the juice container, two regions were analyzed: the central region and near the wall. For the time-temperature control, thermometers were installed in the two regions mentioned. Every 120 seconds, the temperature was measured. The vitamin C content in the juice was evaluated before and after pasteurization using the iodometric method. The convective coefficient was evaluated using the method of dimensionless numbers and the experimental method. Results and Discussion: In pasteurization, the solution was heated to 80 °C, where heating lasted 3000 seconds and cooling for 2520 seconds. The graph showing the relationship of the convective heat transfer coefficient and temperature follows the same trend of the literature. The convective coefficient is higher in the region near the wall. As time passes and temperature decreases, the central region tends to equilibrium, and the coefficient becomes more constant. The vitamin C content remained constant before and after pasteurization. The values of the dimensionless numbers used in the calculations are in the same order of magnitude as the literature. Conclusions: The pasteurization did not cause ascorbic acid degradation since the heating step was fast in the heat treatment. The graphic showed that there is a dependence of the dimensionless of temperature with the dimensionless Biot and Fourier. It was noted that studying the thermal behavior in the cooling of orange juice is extremely important to ensure its quality.
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TYPE 2 DIABETES MELLITUS EFFECTS ON SEMEN PARAMETERS AND SEMINAL PLASMA

Background: Diabetes Type 2 is a complex disorder described by an imbalance between insulin resistance and secretion that induce liver glucose output. It has been shown that serum insulin levels are affected by a sperm plasma membrane and acrosome. Therefore, during insulin resistance spermatogenesis changes, diabetic patients detect testicular changes. Aims: This research aims to know the effect of diabetic type 2 on some aspects of fertility in men by studying the characteristics of the semen and some biochemical parameters in seminal plasma. Methods: This study was achieved at the Center for Endocrinology and Diabetes Specialists in Maysan province from February to November 2018 and included 45 men (30 diabetic and 15 healthy in the control group) aged 30 to 59 years. The patients were divided according to age into two groups, the first (30-39) and second (40-59) years, also divided by the duration of diabetes into two groups, the first (1-5) and second (6-10) year. Results: The pH of semen in the second age group (40-49 years) group and first duration (1-5 years) group were significantly decreased (P <0.05) in diabetes compared with the control group. Volume and viscosity did not have significant differences in patients compared to the control following the age and duration of diabetes. Liquefaction only in the first age (30-39 years) group significantly increased (P <0.05) compared to the control. The concentration of sperm, progressive motility, non-progressive and normal morphology decreased (P <0.05) significantly. While the sluggish, dead, and abnormal morphology significantly increased (P <0.05) in all diabetes groups compared with the control. The fructose and alkaline phosphatase values in the seminal plasma were not differing significantly in patients compared with the control. Zinc and glutathione values decreased significantly (P <0.05) compared with control in each age and duration of diabetes. Discussion: Insulin stimulates the Ledying cell function, defect insulin effect on spermatogenesis. Impaired sperm motility in a patient with D.M. might be attributed to many reasons, such as increased ROS level, altered mitochondria DNA, and decreased epididymal products. Conclusion: our measurement indicates that there is an effect of type 2 diabetes mellitus on semen parameters and seminal plasma biochemical parameters.
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SYNTHESIS OF ZIRCONIUM OXIDE CATALYST SUPPORTED ON CARBONIZED MATERIAL FOR THE OPTIMIZATION OF BIODIESEL FROM WASTE VEGETABLE OIL

Background: In line with the current global energy crisis, there is an urgent need to seek cheap energy sources. This study has utilized waste materials for synthesizing biodiesel, an environmentally friendly alternative energy. Aim: This study aimed to prepare low-cost carbon-based zirconium impregnated heterogeneous catalysts using wood dust to produce biodiesel from waste vegetable oil (WVO). Methods: Response Surface Methodology via Central Composite Design (RSM-CCD) optimized the biodiesel production process. The physico-chemical properties of waste vegetable methyl ester were determined following the American Standard Testing of Materials (ASTM). In addition, the catalyst morphology and elemental composition were determined using Scanning Electron Microscopy (SEM) and Energy-Dispersive X-ray (EDX), respectively. Results and Discussion: The optimum conditions were observed to be 8:1 methanol/oil ratio, 5 wt% catalyst loading, 55 °C temperature, and 3 hours of reaction time. The corresponding response was observed to be 98.39%. Conclusions: The experimental analysis confirmed that the synthesized catalyst from wood dust under optimized conditions transesterified the waste vegetable oil into biodiesel with properties that comply with American Standard Testing of Materials.
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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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