Tip-Tugai Cave, the First Cave Hyena Crocuta spelaea (Goldfuss, 1823) Den Found in the Urals.

The Tip-Tugai Cave (52°59'28.6″ N, 57°00'22.3″ E) is described as a new site with cave hyena Crocuta spelaea fossils.

Evidence of Toxocara Eggs in Pachycrocuta brevirostris (Gervais, 1850) Coprolites from the Pleistocene of Taurida Cave (Crimea).

Coprolites of the hyena Pachycrocuta brevirostris from the Lower Pleistocene (Upper Villafranchian) of Taurida Cave (Crimea) were studied. One of the three hyena coprolites contained helminth eggs. These eggs were assigned to Toxocara sp.

[Genetic diversity of the Pacific walrus (Odobenus rosmarus divergens) in the western part of the Chukchi Sea].

We study 117 Pacific walrus samples from three rookeries within the western part of Chukchi Sea (Cape Vankarem, Cape Serdtse-Kamen, and Kolyuchin Island). We analyze the variability of nuclear (20 microsatellite loci) and mitochondrial DNA (three fragments). Two microsatellite loci which are described as microsatellites for the first time are used in this study: repeated sequences within introns of Coro1c and Plod2 genes.

Radical trideuteromethylation with deuterated dimethyl sulfoxide in the synthesis of heterocycles and labelled building blocks.

The potential of deuterated pharmaceuticals is being widely demonstrated. Here we describe the first trideuteromethylation under radical reaction conditions using deuterated dimethyl sulfoxide as a reagent for the synthesis of labelled heterocycles and trideuteromethylated compounds. A broad scope of the developed method for the synthesis of various scaffolds was demonstrated.