An interesting book about the most important geographical discovery of the ХХI century: In Russia
Here is a summary of the interesting new book published in Russia today. The book reviewed the most important geographical discovery of the twenty-first century, which completes the series of great geographical discoveries, XV - XIX centuries and creates a whole new single three-beam image of the North megacontinent Earth. The first article about the discovery was published in the «Discovery» magazine in 2014.
Discovery, 2017, 53(253), 1-15
About distribution of own waves in the dissipative layered cylindrical bodies interacting with Wednesday
Safarov Ismail Ibrahimovich, Teshaev Mukhsin Khudoyberdiyevich, Boltayev ZafarIxtiyarovich, Akhmedov Maqsud Sharipovich
The paper deals with the propagation of its own wave dissipative layered cylindrical bodies interacting with deformable (viscoelastic) media. The dynamic behavior of cylindrical bodies is described by equations of continuum mechanics. The spectral problem is reduced to solving a system of ordinary differential equations of the first order with variable complex coefficients. Solutions of differential equations is expressed by a special cylindrical Bessel functions and Hankel.
Discovery, 2017, 53(253), 16-29
A Preliminary Taxonomic Account of the Family Araceae in Rajshahi District of Bangladesh
Masuma Islam, Mahbubur Rahman AHM
The present research focused on the family Araceae of Rajshahi district was carried out from July 2013 to August 2014. A total of 13 species under 11 genera belonging to the family Araceae were collected and identified.