Comptes rendus de l'Académie bulgare des Sciences

C O N T E N T S

Volume 58, Issue No5, 2005

MATHEMATICS

01   K. Kirchev, G. Borisova   A Triangular Model of Regular Coupling of Dissipative and Antidissipative Operators _ 

481

02   V. Ristovska   On the Irregularity of the Distribution of the Generalized Van der Corput Sequence

487

03   V. Grozdanov   The Weighted b-Adic Diaphony

493

04   V. Peneva, I. Popchev   Aggregation of Fuzzy Preference Relations with Different Importance

499

SPACE RESEARCH

05   Y. Tassev, P. I. Y. Velinov, D. Tomova   Effect of Geomagnetic Activity on the Ozone Profiles during Solar Minimum and Maximum

507

06   P. I. Y. Velinov, L. Mateev   Analytical Approach for Cosmic Ray Proton Ionization in the Lower Ionosphere and Middle Atmosphere

511

07   D. Krezhova, T. Yanev, St. Lukov, P. Pavlova, V. Aleksieva, D. Hristova, S. Ivanov   Method for Detecting Stress Induced Changes in Leaf Spectral Reflectance

517

ENGINEERING SCIENCES

08   K. Stoilova   Predictive Noniterative Coordination in Hierarchical Two-Level Systems

523

09   K. Georgiev, T. Trifonov, G. Mengov   Efficient Orienting Subsystems in an Adaptive Resonance Theory (ART) Neural Network

531

10   I. G. Garvanov   CFAR PI Detector in Presence of Binomial Distribution Flow from Randomly Arriving Impulse Interference

537

11   V. Samichkov, Ya. Ivanov   Viscoelastic Properties and Relaxation Time of Thermoassociative Graft Copolymer Solutions _ 

545

CHEMISTRY

12   A. T. Bijev, P. Prodanova, A. Nankov   Guanidino Derivatives of Substituted 2-(1H-1-Pyrrolyl)alkanoic Acids

553

13   M. K. Georgieva, O. I. Petrov, K. V. Petrova, A. D. Popov, . . Velcheva   IR Spectral and Structural Changes Caused by the Conversion of 4-Aminobenzensulfonamide (Sulfanilamide) into Azanion

561

14   E. A. Velcheva, K. V. Petrova, N. S. Antonova, L. I. Daskalova, M. K. Georgieva, O. I. Petrov   Experimental and Computational Studies on the IR Spectra and Structure of N-(4-Ethoxyphenyl)acetamide and Its Azanion

567

15   S. Blaskova, N. Nikolov, J. Kirova   Investigation of the Iskar River Water Quality

573

GEOLOGY

16   I. Genov   Model of Sedimentation of the Bosphorous Strait during Neoeuxine-Holocene Time

579

17   Z. Milakovska, A. Harkovska   Zeolitic Rocks from the Paleogene Lacustrine Volcano-Sedimentary Deposits in Gorna Glogovitza Graben (Kraishte Region, Western Bulgaria)

587

BIOLOGY

18   P. Yonova, G. Stoilkova   Synthesis and Plant Growth-Regulating Activity of Pyridyl-Imidazolidinone Compounds

595

19   R. Jordanova, G. Radoslavov, G. Deevska, E. Liebau, R. D. Walter, I. Bankov   Novel Nematode Lipid Binding Protein from Ascaridia galli. Structural Studies

601

MEDICINE

20   M. Stojtscheva, G. Genev, P. Gatseva   Vergleichende Untersuchung des Elektrolytgehalts in Fakalien und Blut bei Kranken mit Diarrhoe-Syndrom

607