So-called bottom-up fabrication methods aim to assemble and integrate molecular components exhibiting specific functions into electronic devices that are orders of magnitude smaller than can be fabricated by lithographic techniques. Fundamental to the success of the bottom-up approach is the ability to control electron transport across molecular components. Organic molecules containing redox ce...

Synopsis Cave-adapted animals are characterized by extreme reduction or complete absence of eyes, reflecting their lack of exposure to daylight. Given the overall constancy of abiotic variables in the cave environment, one would also expect the relaxation and eventual loss of circadian rhythms, and with it, the regressive evolution of the underlying genetic biological clock. Remarkably, however...

background and aims. vascular endothelial growth factor (vegf) and ki-67 antigen are contributing factors in this process cell proliferation and new blood vessels formation in tumor progression. this study was conducted to examine the relationship between the expression of vegf and ki-67 and gender and age of patients with oral squamous cell carcinoma (oscc). materials and methods. twenty-three...