Comptes rendus de l'Académie bulgare des Sciences

C O N T E N T S

Volume 63, Issue No8, 2010

MATHEMATICS

01   Lilia N. Apostolova, Krasimir I. Krastev   Evolution Problems for the Double-Complex Laplacian

1095

02   Nedyalko D. Nenov   Chromatic Number of Graphs and Edge Folkman Numbers

1103

PHYSICS

03   Vasilka Pencheva, Stoyan Penchev, Ivan Nedkov, Tanya Kutzarova, Vassilii Naboko   Analysis of Modulated Optical Reflectance Applied to Magnetoelectric Nanomaterials

1111

04   Stefan Bushev, Ivan Georgiev, Valko Valkov   Analysis of Vertical Axis Centrifugal Casting Technology for Bimetal Castings

1117

CHEMISTRY

05   Albena Detcheva, Ralitsa Georgieva, Elisaveta Ivanova   Spectroscopic Study of the Colouration of Archaeological Glasses Found in Bulgaria

1123

06   Denka V. Kostova, Dimitar R. Mehandjiev   OXY-Complexes of Manganese(VII) with Methyl Violet and Crystal Violet

1131

07   Danka Obreshkova, Lily Peykova   Analytical Study of Sibutramine Using   UV-Spectrophotometry

1137

08   George Angelov, Petko Penchev, Jean-Stéphane Condoret, Séverine Camy   Optimizing the Process of Supercritical Extraction of Lemon Balm ( Melissa Officinalis L.)

1141

BIOLOGY

09   Ekaterina Kozuharova, Andrej Gogala   Reproductive Biology of Gypsophila Trichotoma Wend. (Caryophyllaceae). Endangered Plant Species for the Bulgarian Flora

1147

10   Mariana Hadzhilazova, Jean-Francois Ganghoffer, Ivailo Mladenov   Analytical Description of the Shapes of Beaded Nerve Fibres

1155

11   Teodora Lupanova, Tania Markovska, Diana Petkova, Galya Staneva, Lidia Ivanova, Claude Wolf, Roumen Pankov, Albena Momchilova   Lipid Peroxidation in Control and RAS-Transformed Fibroblasts after Incorporation of Polyunsaturated Fatty Acids

1163.

GEOLOGY

12   Ianko Gerdjikov, Anna Lazarova, Eleonora Balkanska, Kamen Bonev, Dian Vangelov, Dimo Dimov, Alexandre Kounov   A New Model for the Pre-Permian Basement of the Central Stara Planina Mountain

1169

13   Christo Pimpirev, Ioannis Beratis   Lithostratigraphy of the Miocene Sedimentary Sequences in Strymon Basin , Northern Greece

1177

GEOPHYSICS

14   Tsvetina Evgenieva, Bo L. B. Wiman, Nikolay Kolev, Evgeni Donev, Danko Ivanov, Ventsislav Danchovski, Doyno Petkov, Vera Grigorieva, Ivan Kolev   Lidar, Ceilometer and Sun Photometer Investigation of the Aerosol Optical Characteristics in the Troposphere over Sofia, Bulgaria

1191

ENGINEERING SCIENCES

15   Lyubka A. Doukovska   Detection Censoring Techniques for Hough Radar Detector Analysis

1201

16   Jordanka Ivanova, Ludowik Weiler, Jeanne Pouquet, Varbinka Valeva, Dietmar Gross, Rod H. Martin   Validation of an Analytical Model for Sliding Wear of Ceramic-Metal Composites with Experimental Data

1211

MEDICINE

17   Rouja Nikolova, Nevena Tzacheva   Regulating Mechanisms and Cardiovascular Response Pattern in Mental and Static Workload

1219

18   Georgi Nikolov, Antoaneta Michova, Jana Kandova, Julia Radenkova-Saeva, Dora Konstantinova   Immunological Changes During Bee Venom Immunotherapy in Patients With Insect Allergy

1225

19   Plamen Kinov, Anna Tzoncheva, Petar Tivchev   Evidence Linking Elevated Oxidative Stress and Aseptic Loosening of HIP Arthroplasty

1231

20   Nikolai E. Lazarov, Dimitrinka Y. Atanasova, Dimitar E. Itzev, Negrin N. Negrev, Galya Ts. Stavreva, Radomir G. Radomirov   Morphological Evidence for Age-Related Changes in the Nadph-d Activity of Myenteric Neurons in the Rat Recto-Anal Region

1239