Comptes rendus de l'Académie bulgare des Sciences

C O N T E N T S

Volume 63, Issue No1, 2010

MATHEMATICS

01   Boyan Dimitrov   Some Obreshkov Measures of Dependence and Their Use

5

02   Dimitar Mekerov   On the Geometry of the Connection with Totally Skew-Symmetric Torsion on Almost Complex Manifolds with Norden Metric

19

03   Ognian Kassabov   Almost Hermitian Manifolds with Vanishing Bochner Curvature Tensor

29

04   Fernando F. Gonçalves, Maria do Rosario Grossinho, Eva Morais   On the Space Discretization of PDEs with Unbounded Coefficients Arising in Financial Mathematics. Case of One Spatial Dimension

35

05   Gregory Agranovich, Elena Litsyn, Angela Slavova   Stabilizing Control of a Hysteresis Cellular Neural Network Model

47

PHYSICS

06   Zlatinka Dimitrova   On the Low-Dimensional Dynamics of Blood Flow in Small Peripheral Human Arteries

55

07   Svetoslav Nikolov, Julio Vera, Ralf Herwig, Olaf Wolkenhauer, Valko Petrov   Dynamics of microRNA Regulation of Cancer Network

61

CHEMISTRY

08   Ralitsa Georgieva, Albena Detcheva, Yanko Dimitriev, Bisserka Samuneva   Investigation of Medieval Bulgarian Glass Bracelets from Draster-Castle (XI-XIII AD)

71

09   Vanya Mantareva, Ivan Angelov, Vesselin Kussovski, Dieter Woehrle, Slavcho Dimitrov   Metallophthalocyanines as Photodynamic Sensitizers for Treatment of Pathogenic Bacteria. Uptake and Photoinactivation Properties

77

BIOLOGY

10   Kolishka Tsekova, Darinka Christova, Vera Dencheva, Sonia Ganeva   Biosorption of Binary Mixture of Copper and Cobalt by Free and Immobilized Biomass of Penicillium cyclopium

85

11   Mitko Dimitrov, Anthony Donchev, Alexandra Shosheva, Vladimir Getov, Nedyalka Terezova, Svetozar Stoichev   Preparation of Poplar Isoplastocyanins

91

12   Snejana Kestendjieva, Zlatka Popova, Gergana Cvetkova, Ivan Bochev, Ivan Kehayov, Stanimir Kyurkchiev, Milena Mourdjeva   Different Effects of Conditioned Medium Samples from Mesenchymal Stem Cells (CM-MSC) Isolated from Different Sources

97

13   Anelia Kenarova, Galina Radeva   Effects of Copper and Zinc on Soil Microbial Enzymes

105

GEOLOGY

14   Nikola Zidarov, Ognyan Petrov   Boyleite and Zincian Rozenite Two New Sulfate Tetrahydrate Munerals from Madan Ore District, Central Rhodopes, South Bulgaria

113

15   Nikola Bonev   Occurrence of the Mesozoic Low-Grade Unit in the Central Part of the Byala Reka Dome, Eastern Rhodope , Bulgaria

121

16   Christina Vassileva, Stanislav Vassilev, Daher F. Daher   Preliminary Results on Chemical and Phase-Mineral Composition of Syrian Petroleum Coke and Ash

129

PHYSICAL GEOGRAPHY

17   Margarita Stancheva   Human-Induced Impacts along the Coastal Zone of Bulgaria. A Pressure Boom Versus Environment

137

ENGINEERING SCIENCES

18   Ljudmil Bojilov   Comparative Study of Some Algorithms for Projectile Tracking

147

MEDICINE

19   Valentina Grigorova, Otmar Bock, Steliana Borisova, Milena Ilieva, Gerd Schmitz   Double-Step Adaptation of Saccade Directions. Comparison of Constant and Saccade-Triggered Interstep Intervals

157

20   Ludmila Tankova, George Stoilov, Daniel Kovatchki, Antonia Gegova, Krassimir Kalinov, Nikolay Hadjiolov, Ivan Terziev   Comparative Evaluation of Angiogenesis in Rectal Cancer Using Doppler Ultrasound and Immunohistochemical Assessment

163