Addition to the summary “Flora of the Lower Volga Region” of the class of Liliopsida Typhaceae – Hydrocharitaceae (according to the Engler system) based on the materials of the herbarium of the SARAT State University [PDF]
Известия Саратовского университета. Новая серия: Серия Химия. Биология. ЭкологияThe article presents the results of a comparative analysis of the distribution of plant species belonging to the families Typhaceae, Potamogetonaceae, Ruppiaceae, Juncaginaceae, Alismataceae, Butomaceae, Hydrocharitaceae in the Lower Volga region based ...
Boldyrev, Vladimir Alexandrovich +2 more
doaj +1 more source
Travel guides of the future: The use of artificial intelligence in the creation of a historical and tourist product (using the example of a thematic route “Saratov–City of Labor Valor”) [PDF]
Известия Саратовского университета. Новая серия: Серия Науки о ЗемлеIntroduction. In the modern conditions of development of the tourism industry, the creation of high-quality cartographic support for routes, which helps to increase their attractiveness and information content, is of particular importance.
Zatonskaya, Anna Vyacheslavovna +1 more
doaj +1 more source
Mathematical methods in solutions of the problems from the Third International Students' Olympiad in Cryptography [PDF]
, 2017 The mathematical problems and their solutions of the Third International Students' Olympiad in Cryptography NSUCRYPTO'2016 are presented. We consider mathematical problems related to the construction of algebraic immune vectorial Boolean functions and ...
Agievich, S. +7 more
core +3 more sources
Numerical test for hyperbolicity of chaotic dynamics in time-delay systems
, 2016 We develop a numerical test of hyperbolicity of chaotic dynamics in time-delay systems. The test is based on the angle criterion and includes computation of angle distributions between expanding, contracting and neutral manifolds of trajectories on the ...
Kuptsov, Pavel V., Kuznetsov, Sergey P.
core +1 more source
Decay Rate of a Positronium. Review of Theory and Experiment
, 1994 The present status of theoretical and experimental investigations of the decay rate of a positronium is considered. The increasing interest to this problem has been caused by the disagreement of the calculated value of $\Gamma_3 (o-Ps)$ and the recent ...
Dvoeglazov, Valeri V. +2 more
core +1 more source
Вестник Брянского государственного университета, 2023 The article discusses the process of development of urban planning in Saratov during the reign of I.V. Stalin. The problems of development of urban space that faced the city planners of Saratov at that time, the general plans of the city and their ...
Vanin A.A.
doaj +1 more source
Observable effects caused by vacuum pair creation in the field of high-power optical lasers
, 2007 We consider the possibility of an experimental proof of vacuum e+e- pair creation in the focus of two counter-propagating optical laser beams with an intensity of the order of 10^20 - 10^22 W/cm^2.
Blaschke, David B. +4 more
core +1 more source
Gender &History, EarlyView.ABSTRACT The article examines post‐Stalinist Soviet expertise on girls’ education and upbringing, analysing texts for and about female adolescents created by specialists in pedagogical sciences, psychology, sociology, medicine as well as children's writers and journalists from different parts of the Union, including national republics. The text focuses
Ella Rossman
wiley +1 more source
The Power Flow Angle of Acoustic Waves in Thin Piezoelectric Plates [PDF]
, 2008 The curves of slowness and power flow angle (PFA) of quasi-antisymmetric (A0) and quasi-symmetric (S0) Lamb waves as well as quasi-shear-horizontal (SH0) acoustic waves in thin plates of lithium niobate and potassium niobate of X-,Y-, and Z-cuts for ...
Joshi, Shrinivas +4 more
core +1 more source