Current Issue Published
Journal of the Bulgarian Academy of Sciences
- Year: 2025
- Number: 2
- Language: Български, English
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- Newly Elected Leadership of the Bulgarian Academy of Sciences
- New Members of the Governing Board of the Bulgarian Academy of Sciences
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„Drop by Drop“: Current Data for the Blood Group Distributions and Indicators of Blood Donation Activity in Bulgaria in 2023
Author(s): Vassia Atanassova, Ivo Umlenski, Nikolay Nikolov, Nikolay Andreev, Peter Vassilev, Krassimir Atanassov, Tania Pencheva, Simeon Ribagin, Vasilina Vassileva, Angel Dimitriev, Nora AngelovaKeywords: ABO system blood group distributions, Blood donation, Transfusion haematology, Data analysisAbstract: In the current article, we present data for the blood group distributions of Bulgarian population for the year 2023, retrieved from the information system of all transfusion haematology centres and units in the country, where several significant indicators are considered in both national and regional aspect and in both absolute numbers and percentages. We are particularly focused on tracing the ABO system blood type frequencies, Rh(D) antigen frequencies, blood donations by sex and type of donation (family/ replacement or voluntary), average donor’s age by sex and total. The atomic approach towards the data, adopted as early as the research planning phase, has given vast opportunities for stratification of data in various ways and discovering trends, patterns, regional specifics and even anomalies. The presented data and conclusions in the article can serve in planning the operation and resources of the centres and units of transfusion haematology, for information backup of the blood donation campaigns and for raising the society’s awareness and sensibility towards the needs and benefits of the voluntary blood donation as the safest and most sustainable source of blood supply.
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Technological Aspects of Muscle Lipid Oxidation
Author(s): Stefan DragoevKeywords: lipids, peroxidation, meat, poultry, fish, shelf life, health riskAbstract: The article is a brief critical review and presents some of our own results on the oxidative changes of lipids in muscle foods for typical groups of meat and fish products traditional for Bulgaria. Oxidation of lipids in muscle foods affects the safety and quality of meat and fish. The essence of lipid oxidation in meat and the effect of oxidized lipids on human health was presented in this article. Some research related to the initiation and development of lipid oxidation in meat and fish during their processing and refrigerated storage were summarized. The course of lipid oxidation processes in meat and fish products should be thoroughly studied in terms of their quality and nutritional value, refracted through the prism of traditions in nutrition. It is concluded that the interactions between sensory properties, the formation and accumulation of toxic compounds, the pathways of lipid and protein oxidation and the strategies for preventing or inhibiting these negative processes related to the quality and safety of foods of muscle origin represent an intriguing subject for further research. The results obtained can be used to control and optimization the technological processes in meat and fish processing.
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The Duty of Jurisdictions to not Apply Internal Rule (Including Penal) that Contradicts the EU Law (The Member States Are Sovereign but the Sovereignty is Functionally Limited in the EU)
Author(s): Atanas SemovKeywords: sovereignty, primacy, duty of national jurisdiction, request before the Constitutional CourtAbstract: The European Union is a supranational organization. The member state is an integrated state – its sovereignty is guaranteed as well as functionally limited. The EU legal order is autonomous with primacy and direct effect in member states’ legal systems. It imposes to national judge a duty to not apply any internal rule (incl. penal) that contradicts (directly or indirectly) the EU Law. Such internal rule is not “applicable law” under the art. 150 (2) of the Constitution and can not be subject to request by a jurisdiction before to the Constitutional Court.
- The Bulgarian Academy of Sciences Announces the 2025 Grand Prize in Science in the Field of Life Sciences
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2024 Annual Report at the Assembly of Academicians and Corresponding Members of the Bulgarian Academy of Sciences
Author(s): Ilza Pajeva
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The Uprising of Asen and Peter and the Restoration of the Bulgarian State (On the Occasion of the 800th Anniversary of the Uprising of Asen and Peter)
Author(s): Dimitar Angelov
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90th Anniversary of Academician Kiril Boyanov
Author(s): Vassil Sgurev
- In the Management Board of the Bulgarian Academy of Sciences: Newly Elected Directors of Institutes
- Tribute to the Apostle of Freedom
- Sofia Airport Named after Vasil Levski
- Highest State Awards for Scientists from the Bulgarian Academy of Sciences
- Eureka Award for a Young Scientist from the Bulgarian Academy of Sciences
- Corresponding Member Lyuben Dimitrov
- Academician Ivan Todorov
Journal of BAS
ISSN 0007-3989 (print)
ISSN 2683-0302 (on line)
150 Years
"Journal of the BAS"

Sections in the Issue
In the issue you can read articles from the following sections.