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Cosmid B577, a member of the collection of ordered clones corresponding to the genome of Mycobacterium leprae, contains a gene, provisionally called pon1, that encodes an 821-amino-acid-residue high-molecular-mass class A penicillin-binding protein, provis ...
The dependence of the dispersion parameter α and of the time dependent diffusion parameter DH(tL) (estimated over a fixed diffusion length L) on annealing temperature Ta was investigated with elastic-recoil detection analysis (ERDA) in an undoped a-Si:H sa ...
Segmented flow comprising discrete volumes of a liquid reaction mixture separated by discrete volumes of immiscible fluid is passed through a tubular reactor for residence times sufficient to precipitate a powder product from the reaction mixture. USE-Manu ...
The ability to organize cells in three dimensions (3D) is an important component of tissue engineering. This study sought to develop an extracellular matrix (ECM) equivalent with a physicochemical structure capable of supporting neurite extension from prim ...
Photoinduced electron transfer from Et(3)N to 7-oxabicyclo[2.2.1]heptan-2-ones can generate the corresponding 3-hydroxycyclohexanone derivatives. The method has been applied to the synthesis of C-alpha-D-galactopyranosides of carbapentopyranoses. Radical a ...
Sugar-beet pulp was saponified and then hydrolysed with 0.1 M HCl at 80 degrees C for 72 h, and a rhamnogalacturonan fraction was isolated by ion-exchange chromatography on AG 1X8 resin. Four individual oligomers, and a mixture of oligomers with higher deg ...
Particle formation has been investigated experimentally from the initial molecular precursors up to the final micron-sized particles in a low pressure silane rf capacitive discharge. Neutrals and ions were studied by quadrupole mass spectrometry in power-m ...
Two alpha-L-rhamnohydrolases with different substrate specificities were isolated from a commercial preparation produced by Aspergillus aculeatus. The first rhamnohydrolase was active toward p-nitrophenyl-alpha-L-rhamnopyranoside, naringin, and hesperidin ...
The human ileum neurokinin NK2 receptor has been stably expressed in Chinese hamster ovary (CHO) cells using the dihydrofolate reductase (DHFR) expression system. Amplified cell populations expressing approximately 7 x 105 NK2 receptors/cell were selected ...
We present a new experiment to monitor ionized atom and mass selected cluster depositions in real time using specular reflected thermal helium scattering. Monomer Ag ions with an incident kinetic energy of E/sub dep/=20 eV and E/sub dep/=95 eV create surfa ...
