1 National University of Pharmacy, Pushkinskaya 53, Kharkov, Ukraine 2 Kaunas Medical University, A. Mickevièiaus 9, LT-44307 Kaunas, Lithuania The aim of this study was to investigate the effect of the infusion produced from lesser periwinkle (Vinca minor), blossoms and fruits of monopistillate hawthorn (Crataegus monogyna), motherwort (Leonorus cardiaca), knotweed (Polygonum aviculare) and fi...

We introduce a new family of graphs for which the Hamiltonian path problem is non-trivial and yet has a linear time solution. The square of a graph G = (V, E), denoted as G, is a graph with the set of vertices V , in which two vertices are connected by an edge if there exists a path of length at most 2 connecting them in G. Harary & Schwenk (1971) proved that the square of a tree T contains a H...

We have constructed a phylogenic tree for green plants by comparing 5S rRNA sequences. The tree suggests that the emergence of most of the uni- and multicellular green algae such as Chlamydomonas, Spirogyra, Ulva, and Chlorella occurred in the early stage of green plant evolution. The branching point of Nitella is a little earlier than that of land plants and much later than that of the above g...

In meiotic prophase of many eukaryotic organisms, telomeres attach to the nuclear envelope and form a polarized configuration called the bouquet. Bouquet formation is hypothesized to facilitate homologous chromosome pairing. In fission yeast, bouquet formation and telomere clustering occurs in karyogamy and persists throughout the horsetail stage. Here we report the isolation and characterizati...

Horsetails represent an enigmatic clade within the land plants. Despite consisting only of one genus (Equisetum) that contains 15 species, they are thought to represent the oldest extant genus within the vascular plants dating back possibly as far as the Triassic. Horsetails have retained several ancient features and are also characterized by a particularly high chromosome count (n = 108). Whol...

The Yanjiang-Yitong’ansha Fault Zone (YYFZ) traverses the Pearl River Mouth Basin (PRMB) and plays an essential role in basin formation hydrocarbon accumulation PRMB. Because of lack seismic data, its distribution, evolution, effect on evolution Cenozoic are poorly known. Based a detailed interpretation 3D multi-channel data previous research results, YYFZ was identified characterized. It compr...

In the work presented herein, we analyze efficacy of three basic substances that comply with European Regulation (EC) No 1107/2009, namely chitosan, horsetail (Equisetum arvense L.) and nettle (Urtica dioica L.), for control grapevine trunk diseases (GTDs) in organic farming. The E. U. aqueous extracts, prepared according to SANCO/12386/2013 SANTE/11809/2016, have been studied by gas chromatogr...