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Topic Area: Bioscience
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Displaying records 311 to 320 of 448 records.
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311. Influence of Impedance Mismatch Effects on Measurements of Unloaded Q Factors of Transmission Mode Dielectric Resonators
Topic: Bioscience & Health
Published: 6/1/2003
Authors: Kenneth Leong, James C Booth, Sang Yo Lee
Abstract: Precise measurements of the surface resistance of high temperature superconducting thin films using transmission mode dielectric resonators requires accurate knowledge of the unloaded Q factor. So far, the most accurate method of unloaded Q factor de ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=30577

312. Microwave Surface Impedance and Nonlinear Properties of MgB^d2^ Films
Topic: Bioscience & Health
Published: 6/1/2003
Authors: James C Booth, Sang Yo Lee, Kenneth Leong, J. H. Lee, J. Lim, H. N. Lee, S. H. Moon, B. Oh
Abstract: We have measured the temperature dependence of the microwave surface impedance and the nonlinear response of high-quality MgB^d2^ films on c-cut sapphire at temperatures below 40 K. MgB^d2^ films with surface resistance (Rs) as low as 0.09 m{Ohm} at ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=30582

313. Tandem Isotachophoresis-Zone Electrophoresis via Base-Mediated Destacking for Increased Detection Sensitivity in Microfluidic Systems
Topic: Bioscience & Health
Published: 5/21/2003
Authors: Wyatt N Vreeland, S J Williams, A E Barron, A P Sassi
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=903411

314. Choosing a Cantilever for In Situ Atomic Force Microscopy
Topic: Bioscience & Health
Published: 4/1/2003
Author: John Taylor Woodward IV
Abstract: This manuscript is a non-peer reviewed, invited tutorial for Microscopy Today. It describes the issues involved in choosing a cantilever for atomic force microscope (AFM) imaging under fluids. In situ AFM imaging is an increasingly popular techniqu ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830338

315. Thermodynamics of Enzyme-Catalyzed Reactions
Topic: Bioscience & Health
Published: 3/1/2003
Authors: Robert Nathan Goldberg, Yadu D. Tewari
Abstract: This review, which has been prepared for the McGraw-Hill 2003 Yearbook of Science and Technology, gives an overview of the thermodynamics of enzyme-catalyzed reactions. Topics include the thermodynamic formalism(s) used in this field, computational ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830319

316. The Influence of Agarose Concentration in Gels on the Electrophoretic Trapping of Circular DNA
Topic: Bioscience & Health
Published: 1/1/2003
Authors: Kenneth D Cole, B. Akerman
Abstract: The concentration of agarose in electrophoresis gels was found to have significant effects on the apparent density and release characteristics of the electrophoretic traps for circular DNA. Agarose gels were cast in a range of concentrations from 0. ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830330

317. Thermodynamic Quantities for the Ionization Reactions of Buffers in Water
Topic: Bioscience & Health
Published: 12/1/2002
Authors: Robert Nathan Goldberg, N Kishore, R M. Lennen
Abstract: This table contains selected values for the pK, standard molar enthalpy of reaction {Delta}^dr^H , and standard molar heat-capacity change {Delta}^dr^C p for the ionization reactions of 64 buffers many of which are relevant to biochemistry and to bio ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830287

318. A New NIST Mitochondrial DNA Interactive Website
Topic: Bioscience & Health
Published: 8/1/2002
Authors: Barbara C. Levin, L A. Tully, Diane K. Hancock, Frederick P. Schwarz, M S Lee
Abstract: Every human cell has from a few dozen to several thousand mitochondria each of which contain mitochondrial DNA (mtDNA). The sequence of the entire human mtDNA (16,569 base pairs) was determined and published by Anderson et al. in 1981. A mtDNA stan ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830325

319. Electrophoretic Capture of Circular DNA in Gels - A Review
Topic: Bioscience & Health
Published: 8/1/2002
Authors: B. Akerman, Kenneth D Cole
Abstract: Results on electrophoretic capture of circular DNA in porous gels are reviewed. Processes, which cause arrest of circular forms of DNA during electrophoresis, can provide a very efficient separation mechanism for the purification of plasmids and ba ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830340

320. Mechanism of Ionic Current Blockades During Polymer Transport Through Pores of Nanometer Dimensions
Topic: Bioscience & Health
Published: 6/1/2002
Authors: D W Deamer, H Olsen, M Akeson, John J Kasianowicz
Abstract: Linear anionic polymers driven through the {alpha}-hemolysin channel produce ionic current blockades. Three parameters of the blockades can be measured, including blockade amplitude, duration and modulations of amplitude within a single event to tes ...
http://www.nist.gov/manuscript-publication-search.cfm?pub_id=830296



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