with regard to competitive advantage complexity and specific characteristics of high tech industries, in this research by a cognitive mapping methodology we develop a qualitative model for interpreting the competitive advantage in company level for high tech industries. in first, after describing the research problem, we present a comparative review of four recent theories of firm and competiti...

High-tech coal mine canary One of coal mining's earliest systems for warning of the presence of methane gas, the canary in the coal mine, though low-tech, was extremely effective and rather easy to read: if the bird died, miners had to get out of the shaft. Today, the search for means to monitor for signs of danger continues. At an annual checkup, one could be given a whole battery of tests, ea...

Identifying proteins that recognize histone methylation is critical for understanding chromatin function. Vermeulen et al. (2010) now describe a cutting-edge strategy to identify and characterize several nuclear proteins and complexes that recognize five major histone trimethyl marks.