The material microstructure has been studied

by in situ real time spectroscopic ellipsometry collected during thin film deposition or ex situ spectroscopic ellipsometry measurements on a static sample with a multiple sample analysis technique. The key electrical properties of interest, including film resistivity (rho), temperature coefficient of resistance (TCR), and 1/f noise, have been measured as a function of deposition conditions for p-type amorphous hydrogenated silicon (a-Si: H) films and microcrystalline content for n-type amorphous (a), microcrystalline (mu c), and mixed-phase amorphous + microcrystalline (a + mu c) Si:H films. The TCR and 1/f noise values were compared for p- and n-type a-Si: H samples in the resistivity GSK923295 in vitro range of 100 < rho < 3000 Omega cm and show that for a given resistivity, amorphous p-type films exhibit a lower 1/f noise, which might be expected due to a larger density of majority carriers. (C) 2011 American Institute of Physics. [doi: 10.1063/1.3610422]“
“Inhibiting insulin/IGF-1 signalling extends lifespan

and delays age-related disease in species throughout the animal kingdom. This life-extension P5091 concentration pathway, the first to be defined, was discovered through genetic studies in the small roundworm Caenorhabditis elegans. This discovery is described here.”
“The potato tubers contain proteins that inhibit serine proteinases and belong to subfamily of potato Kunitz-type proteinase inhibitors (PKPI). New highly purified protein had been isolated from mature potato tubers (Solanum tuberosum L, cv. Zukov’s Jubilee). The protein is a single polypeptide chain of molecular, weighing 23 kDa. The 20 N-terminal amino acid residues of the protein were determined by automatic Edman procedure. On the basis of N-terminal sequence structure and the molecular mass it is indicated that the inhibitor is a potato Kunitz-type serine proteinase click here inhibitor that belongs

to group B. It was denoted as PKCI (potato Kunitz-type chymotrypsin inhibitor). The PKCI was able to inhibit chymotrypsin and trypsin with the same degree of effectiveness. It formed equimolar complexes with both enzymes. The protein PKCI is a double-headed proteinase inhibitor and is able to bind simultaneously two molecules of different enzymes. The probable cDNA of the inhibitor, denoted as PKPIJ-B consists of a 579-bp open reading frame, encodes protein out of 193-amino acids with a signal peptide (10 residues), indicating that this protein is synthesized as a preprotein. Deduced amino acid sequence of the cDNA is aligned with the respective sequences of already known PKPI, belonging to group B. (C) 2011 Elsevier Masson SAS. All rights reserved.”
“Purpose: Ultrasonography is a useful diagnostic modality for the head and neck region.