Comptes rendus de l'Académie bulgare des Sciences

C O N T E N T S

MATHEMATICS

01   Mohammed A. Al Shumrani, Saeid Jafari, Cenap Özel, Neelamegarajan Rajesh   A New Type of Contra-continuity via δ‑β‑open Sets.

02   Mira Bivas, Nadezhda Ribarska, Mladen Valkov   Properties of Uniform Tangent Sets and Lagrange Multiplier Rule

03   Nicola Yanev, Metodi Traykov, Peter Milanov, Borislav Yurukov   A New Classifier for Protein Fold Class Recognition

CHEMISTRY

04   Hafize Fidan, Todorka Petrova, Tana Sapundzhieva, Nikolay Penov, Hulya Dogan, Sezai Ercisli   The Usage of Concentrated Carob Syrup for Osmotic Dehydration of Blueberries

05   Zlatina Tomova, Angelina Vlahova, Christo Kissov, Rada Kazakova, Dimitar D. Radev   Corrosion Resistance and Biocompatibility of Multicomponent Ni- and Co ‑ Base Dental Alloys Obtained by Methods of Powder Metallurgy

BIOLOGY

06   Galina Stoyancheva, Ekaterina Krumova, Nedelina Kostadinova, Jeny Miteva-Staleva, Petar Grozdanov, Mohamed F. Ghaly, Akmal A. Sakr, Maria Angelova   Biodiversity of Contaminant Fungi at Different Coloured Materials in Ancient Egypt Tombs and Mosques

07   Georgi Markov, Miklós Heltai, Ivan Nikolov, Aleksandra Penezić, József Lanszki, Duško Ćirović   Developmental Stability of the Golden Jackal (Canis aureus moreoticus Geoffrey 1835) Populations in Southeastern Europe

08   Milko Krachunov, Milena Sokolova, Valeriya Simeonova, Maria Nisheva, Irena Avdjieva, Dimitar Vassilev   Quality of Different Machine Learning Models in Error Discovery for Parallel Genome Sequencing

GEOLOGY

09   Elena Koleva-Rekalova, Ivan Genov, Krasimira Slavova   Aragonite in the Holocene Sediments of Cores EUXRo01‑1 and EUXRo03‑3 from the NW Black Sea Slope

SPACE SCIENCES

10   Natalya A. Kilifarska, Tijian Wang, Kostadin Ganev, Min Xie, Bingliang Zhuang, Shu Li   Decadal Cooling of East Asia – the Role of Aerosols and Ozone Produced by Galactic Cosmic Rays

ENGINEERING SCIENCES

11   Plamen Petrov   Dynamics and Adaptive Motion Control of a Two-wheeled Inverted Pendulum Robot

12   Angela Slavova, Galina Bobeva   On Cellular Nanoscale Network Model Arising in Nano Structures

13   Svetoslav Ivanov, Yanka Ivanova   New Approach toward the Laser Transient Processes Using Double Pulse Method

MEDICINE

14   Lyudmila Boyanova, Radka Koumanova, Petyo Hadzhiyski, Galina Gergova, Rumyana Markovska, Daniel Yordanov, Ivan Mitov   Helicobacter pylori Infection in Bulgarian Pediatric Patients

15   Vessela Ouzounova-Raykova, Radoslav Baykushev, Mohamed El Tibi, Simeon Rangelov, Dragomir Petrov, Ivan Mitov   Genital Mycoplasmas and Ureaplasmas and Abnormal Semen Quality in Infertile Bulgarian Men

16   Irina Stefanova, Rumyana Kuzmanova, Sevda Naydenska, Katerina Stambolieva   Character of Epileptic Seizures and Electroencephalographic Changes in Patients with Epilepsy and Comorbid Diseases

17   Derya Karasu, Canan Yilmaz, Seyda Efsun Ozgunay, Seda Cansabuncu, Gulsen Korfali   A Comparison of the Effects of General Anaesthesia and Spinal Anaesthesia on Breastfeeding

18   Maria Pishmisheva, Magdalena Baymakova, Elitsa Golkocheva-Markova, Todor Kundurzhiev, Roman Pepovich, Georgi T. Popov, Ilia Tsachev   First Serological Study of Hepatitis E Virus Infection in Pigs in Bulgaria