Comptes rendus de l'Académie bulgare des Sciences

C O N T E N T S

Volume 68, Issue No7, 2015

MATHEMATICS

01   Veliko D. Donchev, Clementina D. Mladenova, Ivailo M. Mladenov   On the Generalized Euler Resolutions of Rotations

815

02   Evgeniy I. Marinov, Krassimir T. Atanassov   Integral Modifications of the Weight-centre Operator, Defined over Intuitionistic Fuzzy Sets

825

03   Vassil Sgurev   An Essay on Real, Imaginary and Complex Sets

833

CHEMISTRY

04   Tsvetelina Doncheva, Gabriela Yordanova, Vassil Vutov, Nadezhda Kostova, Stefan Philipov   Comparative Study of Alkaloid Profile of Corydalis slivenensis Vel. and Corydalis solida L.

843

05   Valentina Lyubomirova, Rumyana Djingova   Determination of Se in Bulgarian Commercial Flour and Bread

847

BIOLOGY

06   Petka Yurukova-Grancharova, Elina Yankova-Tsvetkova, Georgi Baldjiev, Vladimir Vladimirov   Reproductive Characteristics of Ambrosia artemisiifolia and Iva xanthiifolia– Two Invasive Alien Species in Bulgaria

853

07   Daniela Dragolova, Milena Dimitrova, Detelin Stefanov, Kolyo Dankov, Vasilij Goltsev, Veneta Kapchina   Longtime Adaptive Changes in Photosynthetic Electron Transport in Leaves of Catmint (Nepeta nuda ssp. nuda, L.) Micropropagated Plants after their Transfer to the Field

863

08   Maya Hadzhieva, Jordan Dimitrov, Tchavdar Vassilev   Induced Polyreactivity of Heme‑exposed Pooled Human Therapeutic IgG (IVIg)

871

09   Dzhuliya Milcheva, Matthew Serkedjiev, Plamen Zagorchev, Milena Georgieva, George Miloshev   Yeast Chromatin Remodeling Mutants Show Features of Accelerated Ageing

877

10   Pavlina Sasheva, Iliana Ionkova   Podophyllotoxin Production by Cell Cultures of Linum thracicum ssp. Thracicum Degen Elicited with Methyl Jasmonate and Salicylic Acid

883

GEOLOGY

11   Irena Kostova, Denica Apostolova, Shifeng Dai   Investigation of some Mercury Organic Compounds in Coal and Fly Ash Samples from Bulgarian and Greek Thermoelectric Power Plants

889

12   Viktoria Hristova, Dimiter Ivanov, Vladimir Bozukov   Palaeobotanical Data for Climate Change during the Late Miocene – Early Pliocene in Western Bulgaria

897

PHYSICAL GEOGRAPHY

13   Rumiana Vatseva   Mapping Urban Land Use and Land Cover Change in the Black Sea Coastal Zone in Bulgaria for the Period 1977–2011 Using Remote Sensing and GIS

903

ENGINEERING SCIENCES

14   Maxim Kalinin, Daria Lavrova, Alexander Pechenkin   High Performance Traffic Processing in Virtualized Framework

909

MEDICINE

15   Katerina Stambolieva, Dorina Petrova, Maya Vizeva, Rosen Ikonomov   Assessment of Postural Stability of Patients with Diabetic Peripheral Neuropathy after Treatment with Alpha-lipoic Acid

917

16   Tanya Strateva, Svetoslav G. Dimov, Daniela Atanasova, Veronika Petkova, Encho Savov, Ivan Mitov   Incidence and Expression of Bacteriocin-encoding Genes in Enterococcus spp. Isolates from Clinical Specimens and Traditional Bulgarian Artisanal Cheeses

925

17   Kiril Karamfiloff, Dobrin Vassilev, Milena Staneva, Lili Vladimirova, Jivka Stoykova   Prognostic Factors for Early Mortality in STEMI Patients Treated with Primary Percutaneous Coronary Intervention

935