THE FORMATION OF MULTYSCALING STRUCTURES UNDER LASER IRRADIATION OF ZIRCONIUM ALLOYS SURFACE

The results of studying the influence of laser pulse irradiation on the structure of the zirconium alloys surface layers are presented. As a result of laser irradiation of the alloys surface the multyscalihg structure which included large-scale and small-scale changes of surface relief was formed. Under laser pulse irradiation of alloys surface the concentration of intermetallic phase’s inclusions in the surface layer to a depth of 0.3 μm of ageing alloys was reduced. Due to the rapid heating and solidification of a liquid melt the front of the melt is moving at high velocity and accelerated migration of inclusions into the surface layer of the irradiated spot

The influence of the drugs “Brovermectin-granulate TM” and “Avesstim TM” on indicators of non-specific resistance of one year-old carp fish infested with monogeneans

The article presents data on the study of the influence of the drugs “Brovermectin-granulate TM” and “Avesstim TM” on indicators of non-specific resistance of one-year-old carp fish infested with monogeneans. For conducting experiments, 14 experimental groups were formed (two groups of each species of fish affected by Dactylogyrus lamellatus, Gyrodactylus hypophthalmichtіdis, Eudiplozoon nipponicum ). The fish of the first experimental group were administered “Brovermectin-granulate TM”, and the second experimental group were administerec a complex of drugs “Brovermectin-granulate TM” and “Avesstim TM”. Fish infected with various ectoparasites (Dactylogyrus lamellatus, Gyrodactylus hypophthalmichtіdis, Eudiplozoon nipponicum ) served as controls. Fish of each group were kept in separate aquariums with a capacity of 40 dm3 with artificial aeration at a temperature of 20–22 °С. Their care and feeding was carried out according to the relevant norms and rations. During the entire period of research, the behavior and clinical condition of the fish were observed. The pre-experimental period of acclimatization of annuals was 7 days. The use of the drug “Brovermectin-granulate TM” to one-year-old white carp, crucian carp and scaly carp affected by monogeneans had a stimulating effect on the resistance of their organism. At the same time, the simultaneous use of the specified drug with the immunomodulator “Avesstim TM” contributed to better activation of the humoral link of non-specific immunity in sick fish. To normalize the organism homeostasis, correct metabolism and activate the humoral link of non-specific immunity during a monogenoid invasion of carp, it is recommended to feed them with a combined feed of the drugs “Brovermectin-granulate TM” and the immunomodulator “Avesstim TM”

HYSTYOCYTOSIS X: VERIFICATION OF DIAGNOSIS

A clinical case of histiocytosis X, rarely found in the practice of a dermatovenereologist, is described, the pathognomonic clinical symptoms of this dermatosis, including skin lesions, that occur in 50 to 80 % of cases of all forms are displayed. The modern classification of histiocytosis, pathogenetic mechanisms of development and clinic of histiocytosis Х are given. Particular attention is paid to diagnostic methods, the necessity of interaction of narrow specialists (dermatovenerologists, hematologists, oncologists, pulmonologists) is underlined