Тhe effect of Cr substitution for Fe on ferroelectric and magnetic properties of PbFe0.5Nb0.5O3, PbFe0.5Sb0.5O3 and BiFeO3 multiferroics

Проведены диэлектрические и мессбауэровские исследования сегнетоэлектрических и магнитных фазовых переходов в твердых растворах PbFe0.5-xCrxNb0.5O3, BiFe1-xCrxO3, PbFe0.5-xCrxSb0.5O3. Во всех этих системах замещение железа хромом разрушает как сегнетоэлектрический, так и магнитный дальний порядок.PbFe0.5-xCrxNb0.5O3, BiFe1-xCrxO3, PbFe0.5-xCrxSb0.5O3 solid solutions have been carried out. In all the systems studied Cr substitution for Fe destroys both ferroelectric and magnetic long-range order.Работа выполнена при поддержке Российского Фонда Фундаментальных Исследований (грант 16-52-0072 Бел_a) и Белорусского Республиканского Фонда Фундаментальных Исследований (грант T16R-079)

Group representation base vector expansions (for representations of S characterized by single-hook or by two-rowed Young tableaux)

In this thesis the base vectors for irreducible representations of the sy_tetric group n, for the two particular cases(a) Representations characterized by the partition [n-k.1 kI - so called single-hook representations;.(b) Representations characterized by the partition Cn-m,m] - so called double-row representations,are given explicitly as linear combinations of determinantal functions.Chapters I, II and III with the corresponding Tables I, II and III. give expansions for the base vectors of [n-k.1kI Chapter I has type I expansions with (k+1)-rowed determinants having k variables. Chapter II describes type II, expansions in terms of k-rowed determinants with k variables. Chapter III has type III expansions with %k+1) -rowed determinants with k+1 variables, described however in terms of the states missing from the determinants. Chapter IV gives a very simple expansion of the base vectors for Cn-m,m] in terms of m-fold products of type I two-rowed determinants with one variable.'A1Z Tables go- up to the value n=10. The Introduction brings detailed examples illustrating the various types of expansion.</p

Assessment of anticoccidial efficacy of novel Triazine compound and Sulfaclozine against experimentally induced caecal coccidiosis in broiler chickens

This study was performed to investigate the theraputic efficacy of toltrazuril, sulfaclozine sodium and their combination in broiler chicken for the treatment of experimentally induced caecal coccidiosis. For this purpose, seventy-five day-old chicks were randomly divided into five equal groups (15 each). G1 , kept as control negative; G2 , infected non treated (control positive); G3 , infected treated with toltrazuril (1 mL/L); G4 , infected treated with sodium sulfaclozine (2 mL/L); G5 , infected treated with toltrazuril (1 mL/L) + sulfaclozine Na (2 g/L). All groups except negative control group were inoculated orally with 5 × 104 sporulated oocysts of Eimeria tenella (field isolate) on the day 15th of age. According to the present results, G2 showed a significant increase in oocyst count, AST, ALT, ALP, uric acid, and creatinine, with significant decrease in body weight gain, hematological parameters, total protein, and albumin. Treatment decreased the harmful effect of infection but some significant differences were shown between infected and treated groups and non infected and non treated group in assessment criteria. Furthermore, the histopathological findings were also discussed. In conclusion, the current study showed that the application of both tested drugs gave significant and satisfactory improvement in the assessment criteria as well as they are effective in control of coccidiosis caused by Eimeria tenella