Introduction: The presence of sulfates on the surface of Mars was indicated by a strong Mg-S correlation in the fluorescence data obtained by the Viking landers [1]. Sulfates were subsequently identified as being present in the soil at the Pathfinder landing site at a concentration of ~ 10 % MgSO4 [2]. Data from the Opportunity rover indicates that sulfates of probable evaporite origin are pres...

Abstract Since the finance industry is transforming into a data industry, measuring quantity of investors have about various assets important. Informed by structural model, we develop such cross-sectional measure. We show how our measure differs from price informativeness and use it to document new fact: large high-growth firms becoming increasingly abundant, relative other firms. Our model off...

development of a stool antigen immunoassay to detect helicobacter pylori infection requires monoclonal antibody against the specific antigen. alkylhydroperoxide reductase (ahpc) of helicobacter pylori has been described as a specific and unique enzyme for h. pylori and therefore, both h. pylori ahpc and anti-ahpc could be useful in the development of serologic and stool antigen tests, for detec...

background: soil pollution and accumulation of heavy metals in crops in industrial areas is one of the most important environmental issues threatening the life of plants, animals, and humans. the aim of this study was to determine the concentration of cr and cd in the soil and barberry plants in farms surrounding the qayen cement company, south khorasan province, iran. materials and methods: in...

innovation and sustainable development have been considered fundamental elements in the competitive positioning of companies. the synergies between both concepts, known as eco-innovation, must be considered when designing company policies. the aim of this paper is to analyse which moderating factors determine how innovative companies perform when implementing a sustainable proactive approach. w...