Comptes rendus de l'Académie bulgare des Sciences

C O N T E N T S

MATHEMATICS

01   Alexander Petkov   An Entropy Formula for the Heat Equation on a Quaternionic Contact Manifold

PHYSICS

02   Virjinia Doltchinkova, Victoria Vitkova   Surface Charge and Light Scattering of Thylakoid Membranes and the Effect of Divalent Cations

03   Anita A. Nene, Solaisamy Ramachandran, Sivalingam Suyambazhahan   Design and Analysis of Solar Thermal Energy Storage System for Scheffler Solar Concentrator

CHEMISTRY

04   Albena Bachvarova-Nedelcheva, Reni Iordanova   Synthesis and Crystallization of Silver Containing Tellurite Glass

05   Reni Andreeva, Emilia Stoyanova, Aleksandar Tsanev, Dimitar Stoychev   XPS Characterisation of the Influence of Phosphate Post-treatment of Chemically Deposited Ceria Protective Layers on Aluminum

BIOLOGY

06   Trifon K. Valkov, Dimitar T. Strashimirov, George O. Donkov, Nina S. Yancheva, Yordanka I. Mitova-Mineva, Viktoriya C. Doycheva, Bojidarka G. Kayrakova, Ivelina I. Tomova, Mayda M. Tiholova, Tatyana P. Chervenyakova   Clinical and Epidemiological Investigations of an Outbreak of Gastroenteritis with Norovirus Etiology in Pravets, Bulgaria, March 2016

07   Mustafa Akbulut, Mehmet Polat, Sezai Ercisli, Karim Sorkheh   Genetic Diversity of Prunus angustifolia Accessions

08   Michaella Aleksova, Anelia Kenarova, Silvena Boteva, Galina Radeva   Azoxystrobin Impact on a Selection of Soil Bacterial Resistance to Amynoglicoside Antibiotics

GEOPHYSICS

09   Plamen Savov, Nikolay Kolev, Maya Vatzkicheva, Tsvetina Evgenieva, Danko Ivanov, Petya Kaleyna   Relationship between the Urban Boundary Layer Height and the Vertical Distribution of PM Number and Mass Concentrations in Sofia Valley

ENGINEERING SCIENCES

10   Alexander Smirnov, Tatiana Levashova, Nikolay Teslya, Michael Pashkin   Decision Support in Socio-cyber-physical Systems: Conceptual Framework and Decision Making Stages

11   Pablo A. López Pérez, Ricardo Aguilar-López, Omar S. Castillo-Baltazar, Emmanuel Vallejo Castañeda, Vicente Peña Caballero   Virtual Sensors for Biofuels Production: a Brief Mathematical Description for Synthesis of Algorithms

12   Ramaiah Arun, Shanmugasundaram Singaravelan   Classification of Brain Tumour in Magnetic Resonance Images Using Hybrid Kernel Based Support Vector Machine

13   Suresh Ramalingam, Saravanan Muthusamy, Ganesh Kumar Sinnadurai   Corrosion Behaviour and Microstructure of the TIG-MIG Hybrid Welded Dissimilar UNS 2205 and IS 2062 Steels

MEDICINE

14   Iva Parvova, Emil Hristov, Rasho Rashkov, Ilko Getov, Sava Ognianov   Safety of Biological Treatment in a Bulgarian Population of Patients with Inflammatory Joint Diseases: Retrospective Study of Adverse Drug Reactions

15   Chavdar Elenkov, Ivo Donkov, Marin Georgiev, Krassimir Yanev   Comparative Analysis of Newly-developed Overactive Bladder after Surgery for Stress Urinary Incontinence in Women

16   Zheyna Vl. Cherneva, Mariana V. Gospodinova, Stefan V. Denchev, Radostina Vl. Cherneva   Prognostic Value of Hyperglycaemia and Inflammation in Patients with Acute Coronary Syndrome

17   Valentina Ignatova, Lyudmila Todorova, Tsvetanka Stoyanova, Lyubomir Haralanov, Jivko Surchev   Depression and Anxiety in Patients with Multiple Sclerosis. Comparison with Grade of Disability

AGRICULTURAL SCIENCES

18   Irena Atanassova, Milena Harizanova, Martin Banov   Labile Polycyclic Aromatic Hydrocarbons (PAHs) in Fly Ash Reclaimed Technosols