Sources of information for dataware of strategic marketing

The aim of the article. The paper is dedicated to problems of searching and choosing sources of information, which can be used by managers and executives in retail industry for marketing strategy development and implementation. The results of the analysis. The actuality of information and quick access to it can be supplied by using information sources which correctly answer the purpose, needs and requests of potential information users. Also it is necessary to choose sources with relevant, current data in the field of retail. In the article using of different information sources was investigated by analyzing theoretical and empirical studies of scientists and conducting questionnaire of retail enterprises executives in Ukraine. Due to results of authors’ investigation it was determined the next. Official sources of information can be used for collecting data about macro environment of retail enterprise on such stages of strategic marketing as: positioning of enterprise, segmenting of potential customers, forecasting enterprises development and changes in retail industry. Upon that, State Statistic Service of Ukraine is the source of information about changes and trends in demographical and economic situation and factors related to this, which can have negative or positive effect on retail enterprises activity, resolutions of Ukrainian Cabinet of Ministers – the basis for consideration of laws and changes in business climate of country, Ukrainian Chamber of Commerce and Industry – provides data about financial positions of enterprises and their sustainability as partners in business. Publications and sites of different organizations on Internet is the most popular among unofficial sources of information. The role of the Internet approved by results of investigation, but still there are problems with finding and choosing among great quantity of data available in network essential information and authoritative sources for developing marketing strategy. In the article the most useful Internet resources for collecting data about microenvironment of retail enterprise are described. The using of mass-media and print media as sources of information also considered in terms of developing strategy on retail enterprise. The using of marketing research for getting primary information by large and medium-sized retail enterprises was investigated. The purpose of marketing researches in terms of developing marketing strategy in most cases is analyzing tendencies and forecasting changes of retail market. The matrix of choosing information sources indispensable during strategic marketing process was developed. Usefulness of such matrix for finding information needed in different stages of strategic marketing is described. Conclusions and directions of the future researches. This was the first empirical study to investigate the use of different information sources by marketing executives in retail for developing marketing strategy. In the result of research it was determined the most useful sources of information in different stages of strategic marketing and the type of information accumulated from this sources

Escherichia coli RuvBL268S: A mutant RuvB protein that exhibits wild-type activities in vitro but confers a UV-sensitive ruv phenotype in vivo

The RuvABC proteins of Escherichia coli process recombination intermediates during genetic recombination and DNA repair. RuvA and RuvB promote branch migration of Holliday junctions, a process that extends heteroduplex DNA. Together with RuvC, they form a RuvABC complex capable of Holliday junction resolution. Branch migration by RuvAB is mediated by RuvB, a hexameric ring protein that acts as an ATP-driven molecular pump. To gain insight into the mechanism of branch migration, random mutations were introduced into the ruvB gene by PCR and a collection of mutant alleles were obtained. Mutation of leucine 268 to serine resulted in a severe UV-sensitive phenotype, characteristic of a ruv defect. Here, we report a biochemical analysis of the mutant protein RuvBL268S. Unexpectedly, the purified protein is fully active in vitro with regard to its ATPase, DNA binding and DNA unwinding activities. It also promotes efficient branch migration in combination with RuvA, and forms functional RuvABC-Holliday junction resolvase complexes. These results indicate that RuvB may perform some additional, and as yet undefined, function that is necessary for cell survival after UV-irradiatio

On the Convexity of the KdV Hamiltonian

We prove that the nonlinear part H 17 of the KdV Hamiltonian Hkdv, when expressed in action variables I=(In)n 651, extends to a real analytic function on the positive quadrant \u21132+(N) of \u21132(N) and is strictly concave near 0. As a consequence, the differential of H 17 defines a local diffeomorphism near 0 of \u21132C(N)