background: the seeds of some medicinal plants and their compounds have long been valued for their numerous health benefits. objective:to investigate some physical and chemical properties of salvia spp. methods: some physico-chemical properties in five species of salvia seeds (consisted of s. officinalis l., s. macrosiphon l., s. hypoleuca l., s. sclarea l. and s. nemorosa l.) were measured at ...

Robertson and Seymour proved that every graph with sufficiently large treewidth contains a large grid minor. However, the best known bound on the treewidth that forces an l × l grid minor is exponential in l. It is unknown whether polynomial treewidth suffices. We prove a result in this direction. A grid-like-minor of order l in a graph G is a set of paths in G whose intersection graph is bipar...

Robertson and Seymour proved that every graph with sufficiently large treewidth contains a large grid minor. However, the best known bound on the treewidth that forces an l × l grid minor is exponential in l. It is unknown whether polynomial treewidth suffices. We prove a result in this direction. A grid-like-minor of order l in a graph G is a set of paths in G whose intersection graph is bipar...

Robertson and Seymour proved that every graph with sufficiently large treewidth contains a large grid minor. However, the best known bound on the treewidth that forces an l × l grid minor is exponential in l. It is unknown whether polynomial treewidth suffices. We prove a result in this direction. A grid-like-minor of order l in a graph G is a set of paths in Gwhose intersection graph is bipart...

Nature conservation requires classification of vegetation types for site assessment and assignment. Species-rich floodplain meadows are a declining habitat in Britain Europe yet their has been based on just few samples fails to describe community response environmental change adequately. European classification, opposite, from the wide geographical range with no data/analysis supporting choices...

Sir Macfarlane Burnet [1], who is far famed for his pioneer work on cancer surveillance, recommended clearly in his Brailsford Robertson Memorial Lecture that scientists should acquaint themselves with historical antecedents. Therefore, this paper documents such antecedents in respect of the drug treatment modalities used by cancer quacks. Quacks were presented in the 1725 History of Physic by ...

On the basis of "three sigma" rule, a statistical stratification Ukrainian effective community into economic welfare groups according to their social and status has been carried out, thus creating for substantiating expediency reforming forage production sector in order further expand organic livestock products through up-to-date approaches formation use climate adaptive feed-related phytocenos...