Comptes rendus de l'Académie bulgare des Sciences

C O N T E N T S

MATHEMATICS

01   Todor Zh. Mollov, Nako A. Nachev   Isomorphism of Commutative Group Algebras of Finite Abelian p-Groups

02   Blagovest Sendov   Note on the Hausdorff Geometry of Polynomials

03   Tsviatko Rangelov, Yonko Stoynov   Dynamic Behaviour of Cracked Functionally Graded Magnetoelectroelastic Solids

CHEMISTRY

04   Maria Karsheva, Silviya Georgieva   Flow Properties of Phytocosmetic Formulations. Effect of Plant Extracts and Thickeners

BIOLOGY

05   Pavlina Sasheva, Gabriella Szalai, Tibor Janda, Losanka Popova   Study of the Behaviour of Antioxidant Enzymes in the Response to Hardening and Freezing Stress in Two Wheat (Triticum aestivum L.) Varieties

06   Lyubomira Y. Atanasova   Long-Term Salinity Affects tRNA and rRNA Cytokinins in Maize (Zea mays L.)

07   Ely Zayova, Roumiana Vassilevska-Ivanova, Maria Petrova, Trendafil Nedev   Micropropagation of Valeriana officinalis through Tissue Culture

08   Dimitar Mitov, Tsvetalin T. Totev   Spatial Frequency Uncertainty and Reaction Time to Stimuli-Gratings

09   Borislav Arabadjiev, Rumena Petkova, Stefan Nonchev, Stoian Chakarov, Albena Momchilova, Roumen Pankov   Derivation of Human Embryonic Stem Cell Line from Discarded IVF Morula

GEOLOGY

10   Nikola Zidarov, Ruslan I. Kostov, Petar Zidarov   Nephrite Bearing Tremolitite. First Find in South-West Bulgaria

11   Anton Preisinger, Selma Aslanian   "Catastrophic Flood" at the Black Sea during the Holocene. Speculations and New Data

SPACE RESEARCH

12   Peter T. Tonev, Peter I. Y. Velinov   Conditions for Creation of Streamers in Lower Ionosphere above Lightning Discharges with Continuing Currents

ENGINEERING SCIENCES

13   Valentin Abadjiev, Emilia Abadjieva   Research of the Pile Foundation Process Dynamics. Simulation Results

MEDICINE

14   Iliya Tsekov, Dilyan Ferdinandov, Svetlana Hristova, Venceslav Bussarsky, Zlatko Kalvatchev   Involvement of JC Polyomavirus in the Process of Neurooncogenesis

15   Iva Christova, Evgenia Tasseva, Julia Nacheva, Temenuzhka Kovacheva, Iva Trifonova, Teodora Gladnishka, Vladislava Ivanova   Antibody Response Follow-Up after Vaccination of Humans with Bulgarian Crimean Congo Haemorrhagic Fever Virus Vaccine

16   Ivelin Angelov   A Study on the Cell Immunity Status of Patients with Clinically Manifested Blastocytosis

17   Margarita Ivanova, Alexandar Ternianov, Iren Belcheva, Roman Tashev   Anxiogenic Effect of Vasoactive Intestinal Polypeptide (VIP) Microinjected into the CA1 Hippocampal Area

18   Radostina Alexandrova, Reny Kalfin, Eleonora Leventieva-Necheva, Tanya Zhivkova, Lora Dyakova, Gabriela Marinescu, Daniela Culita, Luminita Patron   Effect of Ursodeoxycholic and Deoxycholic Acids on the Viability and Proliferation of VirusTransformed Tumour Cells

19   Stefan Krustev, Mariya Daskalova, Diana Stephanova   Myelin Sheath Aqueous Layers do not Modulate Membrane Fibre Properties of Simulated Cases of Paranodal Internodal Systematic Demyelinations