Y.S. Koshev Institute of Zoology, Bulgarian Academy of Science, Sofia, Bulgaria E-mail: bgsouslik@gmail.com web address: http://www.groundsquirrel.org ABSTRACT Interspecific behaviour of European ground squirrel (Spermophilus citellus) is still poorly studied. During behavioural studies of free-ranging European ground squirrels tree kinds of aggression to other vertebrate species: reptile, bird and mammal (Lacerta trilineata, Corvus frugilegus, Mustela nivalis) …

INTERSPECIFIC AGGRESSIVE BEHAVIOUR OF EUROPEAN GROUND SQUIRREL (SPERMOPHILUS CITELLUS L.) Read More »

V. Stefanov, E. Markova Department of Ecology and Environmental Protection, Faculty of Biology, Sofia University Correspondence to: Vladimir Stefanov E-mail: vladstef@abv.bg ABSTRACT In the last decades the situation of the European souslik in Bulgaria is undergoing substantial changes towards reduction of inhabited territories and extinction in a number of formerly inhabited areas, which respectively changed …

DISTRIBUTION AND CURRENT STATUS OF THE EUROPEAN SOUSLIK (SPERMOPHILUS CITELLUS L.) IN SOFIA VALLEY AND THE ADJACENT AREAS Read More »

M. Topashka-Ancheva1, Ts. Gerasimova1, V. Dinchev2, K. Dimitrov1 1 Institute of Zoology, Bulgarian Academy of Sciences, Sofia, Bulgaria 2 “International association “Karakachan dog”- Plovdiv, Agricultural University, Plovdiv, Bulgaria Correspondence to: Margarita Topashka-Ancheva E-mail: topashka.mn@lycos.com ABSTRACT The Karakachan is a mountain sheep dog belonging to a rare livestock protection breed. The Karakachan dog is a breed …

KARYOLOGICAL DATA ABOUT THE BULGARIAN NATIVE DOG BREED “KARAKACHAN DOG” Read More »

Nebojša Pavlović1, Bojan Stanimirov1, Maja Stojančević1, Milica Paut-Kusturica1, Assena Stoimenova2, Svetlana Goločorbin-Kon1 and Momir Mikov1 (1) University of Novi Sad, Faculty of Medicine, Novi Sad, Serbia (2) Medical University – Sofia, Faculty of Pharmacy, Sofia, Bulgaria Abstract In the European Union (EU), rare diseases are defined as life-threatening or chronically debilitating diseases with prevalence lower than five in 10,000 inhabitants. Although individually rare, …

AN INSIGHT ON DIFFERENCES IN AVAILABILITY AND REIMBURSEMENT OF ORPHAN MEDICINES AMONG SERBIA, BULGARIA AND SWEDEN Read More »

D. Simeonovska-Nikolova and Sh. Mehmed Department of Ecology and Protection of Nature, Faculty of Biology, Sofia University “St. Kliment Ohridski”, 8 Dragan Tsankov blvd., 1164 Sofia, Bulgaria Abstract Mus spicilegus is an outdoor species from southern-eastern Europe, adapted to agroecosystems. In the beginning of autumn, to spend the winter, mound-building mice build complex mounds. These mounds are …

BEHAVIOR OF MOUND-BUILDING MOUSE, MUS SPICILEGUS DURING AUTUMN-WINTER PERIOD IN CAPTIVITY Read More »

L. Jantschi1, S.D. Bolboaca3,2 and R.E. Sestras3 (1) Technical University of Cluj-Napoca, Cluj, Romania (2) “Iuliu Haţieganu” University of Medicine and Pharmacy Cluj-Napoca, Cluj, Romania (3) University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca, Cluj, Romania Abstract Genetic algorithms are based on observations of natural phenomena as well as on the simulation of the artificial selection of organisms with …

HARD PROBLEMS IN GENE SEQUENCE ANALYSIS: CLASSICAL APPROACHES AND SUITABILITY OF GENETIC ALGORITHMS Read More »

Biotechnology & Biotechnological Equipment Subject: Biotechnology Publisher: Diagnosis Press ISSN 1310-2818 Volume 20, Number 2 Date: June 2006   Evidence for proteolytic activity of Lactobacilli isolated from kefir grains P. Kabadjova-Hristova, S. Bakalova, B. Gocheva and P. Moncheva Sofia University, Biological Faculty, Department of Microbiology, Sofia, Bulgaria Abstract The proteolytic activity of 276 natural isolates from kefir grains was …

Evidence for proteolytic activity of Lactobacilli isolated from kefir grains Read More »