Trakia Journal of Sciences
The Scientific Serial of Trakia University

CONTENTS

Original Contributions
Biology:
CHENOPODIUM BONUS HENRICUS L. (PERENNIAL GOOSEFOOT) IN BULGARIA:
I. POPULATION VARIABILITY
N. Grozeva, Y. Cvetanova

CHENOPODIUM BONUS-HENRICUS L. (PERENNIAL GOOSEFOOT) IN BULGARIA:
II. MORPHOLOGY, CHOROLOGY AND ECOLOGY
N. Grozeva

HORSE FLIES (DIPTERA, TABANIDAE) OF SURNENA SREDNA GORA MOUNTAIN, BULGARIA
D. Ganeva

Biotechnology:
EXPRESSION OF HUMAN GROWTH HORMONE ALTERS THE SHOOT MORPHOLOGY IN TRANSGENIC POTATO PLANT
M. Akhshik, H. Hashemi Sohi, E. Jourabchi, D. Forouzan Boroojeni

Plant-growing:
THE EFFECT OF DIFFERENT CYTOKENINS IN PROPAGATION OF CAPSICUM ANNUUM L. BY IN VITRO NODAL CUTTING
M. Otroshy,K. Moradi, M. Khayam Nekouei

Medicine:
MYASTHENIA GRAVIS DEVELOPMENT AND CRISIS SUBSEQUENT TO MULTIPLE SCLEROSIS
K. Gharagozli, M. Shojaei, A. Amini Harandi, N. Akbari

Pathophysiology:
COMBINED EFFECT OF PHYSICAL ACTIVITY AND EPIPHYSECTOMY ON BLOOD COAGULATION IN RATS
H. Rostami, N. Farhadi

Animal husbandry and Veterinary medicine:
CHANGES IN BLOOD ANTIOXIDANT STATUS OF  HANOVERIAN HORSES DURING FOUR YEAR SEASONS
N. Georgieva, G. Barzev

TRANSTHORACAL TWO-DIMENSIONAL ULTRASONOGRAPHIC ANATOMICAL STUDY OF THE HEART IN THE RABBIT (ORYCTOLAGUSCUNICULUS)
R. Dimitrov, D. Vladova, K. Stamatova, D. Kostov, M. Stefanov

POLYMERASE CHAIN REACTION ASSAY FOR DETECTION OF ENTEROPATHOGENIC ESCHERICHIA COLI STRAINS IN MEAT
S. Stanilova, N. Rusenova, D. Petrova, T. Stoyanchev

ATTEMPTS FOR IDENTIFICATION OF CLOSTRIDIUMPERFRINFENS TYPE А AND SOME HAEMOLYTIC BACTERIAL SPECIES  USING THE CAMP ТЕСТ
V. Naydenov, M. Lyutskanov, V. Urumova, N. Massalski

INFLUENCE OF EXERCISE ON ACID-BASE, BLOOD GAS AND ELECTROLYTE STATUS IN HORSES
D. Goundasheva, S. Sabev

EPIDEMIOLOGICAL CHARACTERISTICS OF POST-WEANING DIARRHOEA ASSOCIATED WITH TOXIN-PRODUCING ESCHERICHIA COLI  IN LARGE INTENSIVE PIG FARMS
M. Lyutskanov

Review Articles
MATRIX METALLOPROTEINASES IN TUMOR BIOLOGY- A SPECIAL ATTENTION ON THEIR ROLE IN HNSCC
A. Anastasov, T. Vlaykova

THE ISOLATED PERFUSED KIDNEY MODELS - CERTAIN ASPECTS
T. Georgiev, R. Iliev, S. Mihailova, P. Hadzhibozheva, G. Ilieva,  M. Kamburova, ATolekova

ANALAIZE OF THE LAST YEARS POSSIBLE DIRECTIONS FOR CULTIVATION AND APPLICATION OF HUMAN KERATINOCYTES
N. Pirovski

Letter to the Editor______           ____________________________________________________________________________________
GOOD PRACTICE IN THE WORLD
V. Ivanov