| Editorial | 5 |
| Elfimov V.I., Babkina S.S., Ulakhovich N.A. A Study of the Existence Area of Decavanadate Ions to Improve the Method of Synthesizing Crystal Decavanadates from Solutions | 9 |
| Karataeva F.Kh., Monakhova N.I. Structure and Intramolecular Mobility of N-Phenyl-N'-(Diisopropoxythiophosphoryl)Thiourea in a CD2CL2 Solution | 16 |
| Galkina I.V., Takhautdinova G.L., Gubaidullin A.T., Gnezdilov O.I., Yusupova L.M., Sakhibullina V.G., Ilyasov A.V., Galkin V.I. Synthesis, Structure and Biological Activity of Antimicrobial Compounds Based on Dichlorodinitrobenzofuroxan and Aromatic Amines | 24 |
| Brusnitsyn D.V., Medyantseva E.P., Varlamova R.M., Maksimov A.A., Fattakhova A.N., Budnikov H.C. Amperometric Determination of Antidepressants Using Monoamine Oxidase Amperometric Biosensors Based on Screen-Printed Electrodes with Multi-Walled Carbon Nanotubes and Nanoparticles of Silver | 37 |
| Ziyatdinova G.K., Oskina K.S., Ziganshina E.R., Budnikov H.C. Square-Wave Voltammetry of Sterically Hindered Phenols in Brij? 35 Micellar Media | 51 |
| Lozhkin A.P., Biktagirov T.B., Zelenikhin P.V., Abdulyanov V.A., Khairullin R.N. Evaluation of Oxidative Stress Using EPR Spectroscopy in Patients with Cardiovascular Disease | 62 |
| Khabibullin V.F. Problems of Object and Subject in Parasitological Research | 74 |
| Sibgatullina M.Sh., Aleksandrova A.B., Ivanov D.V., Valiev V.S. Estimation of the Biogeochemical Status of Herbs and Soils in the Volga-Kama Reserve | 87 |
| Samokhvalova E.V., Sanina N.V., Fadeeva L.V. Analysis and Forecast of Germination Ability of Grain Crops in the Middle Volga Region | 103 |
| Karmazina I.O., Shulaev N.V. Orthopterous Insects (Orthoptera) from the Central Part of the Volga-Kama Region: Faunistic Barriers and Zoogeographical Zoning | 110 |
| Andrianov G.V., Sitnikov A.P. Electronic Text Classification in Botany | 127 |
| Sharifullin A.G. Factors Influencing Denudation Rates in the Caucasus Mountains | 135 |
| Perevedentsev Yu.P., Zandi R., Aukhadeev T.R., Shantalinskii K.M. Special Characteristics of Dust Storms in the Southwestern Part of Iran in the Early 21 Century | 147 |
Perevedentsev Yu.P., Shantalinskii K.M., Aukhadeev T.R., Ismagilov N.V., Zandi R. Effect of Macrocirculation Systems on the Thermobaric Conditions of the Volga Federal District
| 156 |
