BACKGROUND: The ras family of proto-oncogenes encodes for small GTPases that play critical roles in cell-cycle progression and cellular transformation. ERK1/2 MAP kinases are major ras effectors. Tumors in chemically treated mouse skin contain mutations in the Ha-ras pr...

Recently, a number of conducting and superconducting salts based on unsym-metrical π-donor molecules have been prepared and studied (see [1–5]). In this paper the preparations, crystal structures and physical properties of some salts based on the unsymmetrical π-donors ...

The use of germanate glasses in technological applications, such as optical fibers and infrared transmitting windows, has stimulated extensive investigations of their physical properties. The refractive index, density, thermal expansion coefficient, and electrical condu...

The similarities and dissimilarities in the optical and related properties of conventional (e.g. CdS) and unconventional (i.e. metal-halide chain complexes, organic ion radical salts, polymers etc) semiconductors (bulk and small particles) are reviewed and some recent r...