Article history: Received 2 November 2011 Available online xxxx Communicated by Luchezar L. Avramov MSC: primary 16E40, 55P35 secondary 16E45, 16T10, 16T15, 18G55, 55P40, 55U10, 55U15, 57T05, 57T30

A method is described for the purification of the A substance in horse saliva, and additional observations on the chemical properties of the preparation are reported. The preparation isolated was found to be highly active serologically and it appears to be polysaccharide in nature.

The authors present an epizootiological analysis of viral haemorrhagic disease of rabbits in Poland. The biological, physical and chemical properties of virus isolates used for the production and control of the vaccine 'Cunivac' (produced in Poland) are also presented. The safety and efficacy of this vaccine are demonstrated. Laboratory experiments and large-scale field observations yielded sat...

Molecular modeling frequently constructs classification models for the prediction of two-class entities, such as compound bio(in)activity, chemical property (non)existence, protein (non)interaction, and so forth. The models are evaluated using well known metrics such as accuracy or true positive rates. However, these frequently used metrics applied to retrospective and/or artificially generated...

In this paper we study Multiple periodic solutions for a class of non-autonomous and convex Hamiltonian systems and we investigate use some properties of Ekeland index.  

crop yields are dependent on a number of factors such as soil type, weather conditions and farming practices. crop yield estimates in different soil types are required to meet the needs of farmers, land appraisers, and governmental agencies in iran as around the world. this study was conducted to model the wheat-grain yields [triticum aestivum l.]  by soil properties in khoy area, the north-wes...

The angular properties of sensor, implemented in Kretschmann?s scheme, where the optimized for oblique incidence light thin-film reflection interferometer acts as a sensing element, are described paper. Analytical equations, defining sensor?s S and P polarization states at working wavelength vicinity angle incidence, provided, well approximate equations main parameters sensor: sensitivity, full...