Ziyatdinova G.K., Guss E.V., Yakupova E.N., Budnikov H.C. An electrode based on electropolymerized naringin for voltammetry

5

Shaidarova L.G., Gedmina A.V., Syutkina V.N., Chelnokova I.A., Budnikov H.C. The use of an electrode modified by polyvinylpyrrolidone film with a gold deposit for voltammetric determination of tetracycline in milk

20

Troshanin N.V., Bychkova T.I. Heteroligand cobalt(II) complexes with some aromatic acid hydrazides and L-histidine

31

Khadieva A.I., Gorbachuk V.V., Latypov R.R., Stoikov I.I. Synthesis and interaction with model DNA of polyaniline and poly[N-(2-hydroxyethyl)aniline]

42

Kobchikova P.P., Zgadzay Yu.O., Efimov S.V., Klochkov V.V. Comparison of the cyclosporine variants A and D by NMR spectroscopy

56

Afordoanyi D.M., Toacegnitche A., Validov S.Z. Changes in the copy number of class II transposons in Fusarium oxysporum f. sp. radicis-cucumerinum strain V03-2g and its derivatives with broadened phytopathogenicity

66

Kuryntseva P.A., Vybornova I.B., Galitskaya P.Yu., Selivanovskaya S.Yu. Changes in the toxicological characteristics of biochars from chicken manure dependent on their chemical modification

77

Petukhov A.S., Khritokhin N.A., Petukhova G.A., Kremleva T.A. Phenolic plant defense system under conditions of environment pollution by heavy metals in Tyumen

93

Blagoveshchenskaya N.V. Forest zones in the central part of the Volga Upland during the Holocene and their correlation with adjacent regions

108

Mullakaev A.I., Khasanov R.R. Signs of the aeolian influence on the formation of coastal-marine sand deposits in the Permian (Republic of Tatarstan, Russia)

128

Bykova S.V., Zharikov V.V. Biodiversity and specificity of planktonic ciliate communities from the zone of Volga and Kama Rivers confluence

141

Frolova L.A., Nigamatzyanova G.R. Structural and functional characteristics of zooplankton communities in thermokarst lakes of Samoylov Island (Lena River delta, Republic of Sakha (Yakutia))

158

Tereshchenko V.G., Shakirova F.M., Latypova V.Z., Stepanova N.Yu. The impact of herbivorous fish introduction on the formation of fish communities in water bodies (based on the Khauzkhan Reservoir, Turkmenistan

172