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Displaying records 201 to 210 of 273 records.
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201. Real-time telomerase assay of less-invasively collected esophageal cell samples
Topic: Life Sciences Research
Published: 11/28/2006
Authors: Brenna M McGruder, Donald H Atha, Wendy Wang, Konrad Huppi, Wen-Qiang Wei, Christian C Abnet, You-Lin Qiao, Sanford M Dawsey, Philip R Taylor, J P. Jakupciak

202. Redox Control of the P450cam Catalytic Cycle: Effects of Y96F Active Site Mutation and Binding of a Non-Natural Substrate
Topic: Life Sciences Research
Published: 1/1/2002
Authors: Vytautas Reipa, M P. Mayhew, Marcia J Holden, V L. Vilker
Abstract: Spectroelectrochemical measurements are used to demonstrate that active site mutation and binding of a non-natural substrate to P450cam (CYP101) reduces the shift in the redox potential caused by substrate-binding, and thereby results in slower catal ...

203. Remote sensing of chiral signatures on Mars
Topic: Life Sciences Research
Published: 11/1/2012
Authors: William Sparks, James H. Hough, Thomas Avery Germer, Frank Robb, Ludmilla Kolokolova
Abstract: We describe circular polarization as a remote sensing diagnostic of chiral signatures which may be applied to Mars. The remarkable phenomenon of homochirality provides a unique biosignature which can be amenable to remote sensing through circular ...

204. Repair of Formamidopyrimidines in DNA Involves Different Glycosylases - Role of the OGG1, NTH1, and NEIL1 Enzymes
Topic: Life Sciences Research
Published: 12/9/2005
Authors: J Hu, N de Souza-Pinto, K Haraguchi, Barbara A Hogue, Pawel Jaruga, M M Greenberg, M Miral Dizdar, V. Bohr
Abstract: 2,6-diamino-4-hydroxy-5-formamidopyrimidine (FapyG) and 4,6-diamino-5-formamidopyrimidine (FapyA), are formed abundantly in DNA of cultured cells or tissues exposed to ionizing radiation or to other free radical-generating systems. We show here that ...

205. Response to "Comment on 'Reinterpretation of the Spectra of Hydrated Co++: An Ab Initio Study'"
Topic: Life Sciences Research
Published: 6/15/2000
Authors: H S. Gilson, Morris Krauss
Abstract: This is a response to comments on a previous paper. Reinterpretation of the Spectra of Hydrated Co++: an ab Initio Study.

206. Reversible Proton Transfer Dynamics in Bacteriorhodopsin
Topic: Life Sciences Research
Published: 8/20/2004
Authors: Y. S. Lee, Morris Krauss
Abstract: Proton transfer in bacteriorhodopsin from the cytoplasm to the extracellular side is initiated from protonated asp96 in the cytoplasmic region towards the deprotonated Schiff base. This occurs in the transition from the photocycle late M state to th ...

207. Roles of Nanofiber Structure and Chemistry in Directing Stem Cell Morphology, Differentiation and Gene Expression
Topic: Life Sciences Research
Published: 4/19/2014
Authors: Sumona Sarkar, Bryan A. Baker, Desu Chen, Wolfgang Losert, Carl George Simon Jr., Joy P Dunkers
Abstract: Nanofiber technology has emerged as a promising tool to recapitulate the native extracellular matrix (ECM) environment for tissue engineering and regenerative medicine strategies. Cell-material interactions in the nanofiber system are largely de ...

Topic: Life Sciences Research
Published: 1/1/1992
Authors: H H. Weetall, Adolfas Kastytis Gaigalas

Topic: Life Sciences Research
Published: 1/14/1992
Authors: S. Boiteux, E. Gajewski, J. Laval, M Miral Dizdar

210. Segmentation and Cell Tracking of Breast Cancer Cells
Topic: Life Sciences Research
Published: 9/26/2011
Authors: Adele P Peskin, Daniel J. Hoeppner, Christina H. Stuelten
Abstract: We describe a new technique to segment and track the cell images of a breast cancer cell line in order to study cell migration and metastasis. Within each image cell phenotypes vary widely, ranging from very bright completely bounded cells to barely ...

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