Latest Edition Highlights (Issue 39)

Featured articles from our most recent publication

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.
Read Article

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.
Read Article

DETECTION OF EPSTEIN-BARR VIRUS (EBV) IN WOMEN WITH BREAST CANCER IN IRAQ USING IN-SITU HYBRIDIZATION AND IMMUNOHISTOCHEMICAL TECHNIQUES

Background: The Epstein-Barr virus (EBV) has recently been identified in human breast cancer globally, potentially contributing to the initiation and progression of this malignancy, as well as gastric cancer, nasopharyngeal carcinoma, and bladder cancer. It has been newly associated with breast cancer. Globally, breast cancer affects more women than any other type of cancer. In Iraq, the prevalence of breast cancer is comparable. Aims: The study examined Iraqi women diagnosed with invasive ductal carcinoma (IDC) and invasive lobular carcinoma (ILC) to detect Epstein-Barr Virus Nuclear Antigen-1 (EBNA-1) and encoded RNA (EBER). Methods: A total of 50 formalin-fixed paraffin-embedded tissues from invasive ductal carcinoma (IDC) (92%) and invasive lobular carcinoma (ILC) (8%) biopsy samples constituted the case group, while 30 formalin-fixed paraffin-embedded tissues from non-cancerous breast tissue served as the control group. The presence of Epstein-Barr virus protein (EBER) in breast tissue was assessed using immunohistochemistry (IHC) and chromogenic in situ hybridization (CISH) methods. Results: EBER RNA signals were found in 31 (62%). EBER RNA signals were seen in 3 (10%) control group participants. Significant differences (P<0.04) were seen in EBV EBER RNA positive signals among study groups. Immunohistochemistry showed nuclear brown staining in 34 (68%) breast cancer patients. Control group: 3 (10%). Discussion: The research identified a statistically significant correlation between EBV positivity and breast cancer among Iraqi women, especially concerning invasive ductal carcinoma. The results corroborate previous reports of elevated EBV levels in malignant breast tissues relative to controls. Although detection approaches such as CISH and IHC provide complementary insights, additional studies are needed. Conclusions: The study concludes that EBNA-1 and EBV EBER RNA were overexpressed in our population group.
Read Article

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.

Journal last cover


Last Cover

DOWNLOAD

Selected Articles for Additional Reading (2018 - Present)

Discover more great content from our archive

MOLECULAR MODELING, REACTIVITY PARAMETERS, AND SPECTROCHEMIC STUDIES OF e-CAPROLACTAM AND o-PHENANTROLINE

Background: Recently, research has been carried out to improve the efficiency of electronic devices in general. With the commercial search for consolidated materials and the growth in demand with monitoring of costs, research has sought to minimize these effects with the replacement or functionalization of other substances, which may be applied at lower costs without compromising operating yields already achieved. Objective: This work aimed to obtain molecular modeling and reactivity parameters of -caprolactam and o-phenanthroline to evaluate the interaction capacity in the formation of molecular systems. Conductance measurements were taken to observe the electrolytic behavior. Infrared and UV-visible spectra were recorded to characterize vibrational transitions and evaluate spectrochemical properties. Methods: The WebLab program was used to obtain structural data and calculate reactivity parameters. Conductance was obtained in QUIMIS Q-405 equipment. IR spectra were recorded on PERKIN ELMER FRONTIER equipment. UV-vis spectra were recorded in a SHIMADZU equipment 200 – 1000 nm range to record the main transitions. Results and Discussions: Electron donor atoms are centered mainly on oxygen and nitrogen, respectively, which are sterically more favorable. The behavior was non-electrolyte. Groups with vibrational transitions sensitive to chemical interactions are comprised of C=N, C-N, and C=O bonds. The  parameter indicates transitions in the 190 – 300 nm region and the near-infrared, and the oscillator strength is typical of molecules used as dyes and sensitizers in optical light-emitting systems or light-to-electricity converters. Conclusions: We observed that these ligands have a donor capacity for the formation of complex systems that meet the need for electron transfer in optical pumping devices for the intensification of transitions or radiation converters, which can also be applied in radiation-to-electricity converter systems.
Read Article

SELF-ASSEMBLED MULTILAYERS OF WATER GLUCOSE MODIFIED-CHITOSAN AND GLUCOSE OXIDASE FOR DETECTION OF GLUCOSE IN MILK SAMPLES

Background: A crucial aspect of electrochemical enzymatic biosensor development is the immobilization of the enzymes, as it directly influences the sensitivity of the bioelectrode. Among the different methods used to incorporate enzymes on the surface of the transducers, layer-by-layer (LbL) self-assembly based on electrostatic interaction with polyelectrolytes of opposite charge stands out due to its simplicity and reproducibility. Aims: The aim of the work was to develop an electrochemical glucose biosensor by LbL assembly of a new functionalized chitosan polycation and the enzyme glucose oxidase (GOx). Methods: Chitosan was chemically functionalized with glucose by the Maillard reaction. The resulting polycation, named G-Chit, is soluble in the medium compatible with the enzyme. The bioelectrode was obtained by alternating adsorption of G-Chit and GOx onto carbon paste electrodes. By selecting the number of bilayer of G-Chit/GOX, the enzyme concentration, and the pH, the electroanalytical performance of the biosensor was optimized. The electrochemical responses were characterized by cyclic voltammetry and chronoamperometry. Results: Under optimized experimental conditions, the biosensor exhibited a sensitivity of (0.81 ± 0.03) µA mM-1 in a glucose concentration range of (0.18 to 1.75) mM. Discussion: Results indicated that catalytic response increases both with the number of G-Chit/GOx bilayers and the enzyme concentration, obtaining the best responses for 3 bilayers and 2 mg mL-1, respectively, while the optimum working pH value was 7.0. Conclusions: The analytical response of the biosensor was tested in milk samples with negligible matrix effects, suggesting a potential application in other dairy products. Results show that G-Chit appears promising for the immobilization of enzymes.
Read Article

INVESTIGATING THE EFFECT OF COLD TEMPERATURE STRESS ON UNOPENED MALE CATKINS AND INOCULATED FEMALE FLOWERS OF IRANIAN NATIVE HAZELNUT CULTIVARS

In many low-temperature areas, the environmental factor is an important limiting factor for the production and distribution of horticultural plants. This study aimed to investigate the cold tolerance of the male catkins and inoculated female flowers to screen the popular native hazelnut cultivars in Qazvin under low-temperature stress. A completely randomized factorial block design with three replications was used in this experiment with eight cultivars (Nakhnroud, Khandan, Mish-Pestan, South of Qarabagh, Asl-e-Qarabagh, Rasmi, and Gerdashkevar). After removing each of the treated samples at the end of the experiment, the samples were examined morphologically (appearance) and compared with the control. The changes were recorded as qualitative traits. To understand the influence of cold stress on reproductive organs, hydrogen peroxide and proline were measured. The results showed the onset of freezing in unopened male catkins at -7 and -9 °C and in inoculated female flowers at -3 °C. Damage to unopened male catkins' tissue occurred at -11 °C and in female flowers at -5 °C. The highest value observed among cultivars in the case for proline content of male catkins was in Mish-Pestan and Khandan cultivars with 0.816 and 0.660 µmol/ g FW, respectively. In inoculated female flowers, Mish-Pestan and Tabestaneh cultivars with 0.185 and 0.168 µmol/ g FW, respectively, showed the highest statistically significantincrease in proline content. Interestingly, the cultivars with the highest proline content in male catkins indicated the most increase in H2O2; Mish-Pestan and Khnadan with 0.569 and 0.541 ug/g FW, respectively. Asl-eQarabagh was observed to have the least H2O2 content (0.042 ug/g FW) among cultivars. Again, in inoculated female flowers, those with the highest concentration of proline (Mish-Pestan and Tabestaneh) were found to have the highest H2O2 content (0.335 and 0.331 ug/g FW, respectively
Read Article

Other relevant news

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!
Editorial Team

THANK YOU FOR YOUR PRESENCE


It was an honor the have you with us.

Last Cover

Crossref Content Registration logo
Portico logo