INVESTIGATION OF THE RHEOLOGICAL PROPERTIES OF ROCKS IN EXPERIMENTS ON STEPWISE LOADING OF CYLINDRICAL SAMPLES

Journal of Applied Mechanics and Technical Physics - A method for determining the empirical dependence of the rheological properties of rocks on stresses has been developed and tested in...     

Self-similar Hessian and conformally Kähler manifolds

Annals of Global Analysis and Geometry - We study a natural class of LCK manifolds that we call integrable LCK manifolds: those where the anti-Lee form $$\eta $$ corresponds to an integrable...     

Solution of Ponomarev’s Problem of Condensation onto Compact Sets

Siberian Mathematical Journal - Assuming the Continuum Hypothesis (CH), we prove that there exists a perfectly normal compact topological space  $ Z $ and a countable set...     

Structure of Two Acetylene Derivatives of Salicylic Acid

Crystallography Reports - Methyl 2-hydroxy-5-[(trimethylsilyl)ethynyl]benzoate and methyl 2-hydroxy-5-ethynylbenzoate have been synthesized, and the crystallographic data on these compounds are...     

π0–η–η' Mixing in the Theory with Four-Quark Interactions

JETP Letters - Mass formulas, mixing angles, and decay constants of the pseudoscalar π0, η, and η' mesons have been obtained in the theory with four-quark interactions with an...     

Photocatalytic Systems Based on Acridine Salts Derivatives

Russian Journal of General Chemistry - The possibility of 10-methyl-9-phenylacridine iodide usage as a photocatalyst in the process of molecular hydrogen evolution in various aprotic solvents has...     

Fock–Schwinger Method in the Case of Different Masses

JETP Letters - The result of removing heavy particles with different mass from the theory spectrum can be described at low energy by the effective action, which is an asymptotic series in inverse...     

Recent Advances on the Total Syntheses of Communesin Alkaloids and Perophoramidine

The communesin alkaloids are a diverse family of Penicillium‐derived alkaloids. Their caged‐polycyclic structure and intriguing biological profiles have made these natural products attractive targets for total synthesis. Similarly, the ascidian‐derived alkaloid, perophoramidine, is structurally related to the communesins and has also become a popular target for total synthesis. This review serves to summarize the many elegant approaches that have been developed to access the communesin alkaloids and perophoramidine. Likewise, strategies to access the communesin ring system are reviewed.     

Synthesis and halocyclization of N- and O-propargyl derivatives of quinolin-2(1H)-ones

Russian Chemical Bulletin - The alkylation of 4-methyl- and 4,8-dimethylquinolin-2(1H)-ones with propargyl bromide gave 4-methyl-N-propargylquinolin-2(1H)-one and...