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30 Nov 2010: Numericalresults also indicate its superior performance for a number of test problems.

8 Oct 2010: To test this hypothesis in a well-definedexperimental system, two model recombi-nant titin fragments were constructed, con-sisting of a four- or eight-Ig segment stretchin the I-band region

18 Nov 2010: iv) Manipulationsof DNA at molecular extensions that preclude intramolecularcontacts can be used, as reported here, to test the competinghypotheses that cation-induced condensation is due to attrac-tive intersegmental free energy

2 Nov 2010: Our demonstrated ability to monitor changing dimensions con-tinuously in the nanometre range while varying experimentalparameters provides an unusual opportunity to test microscopicmodels to account for the observed materials phenomena.

4 Oct 2010: Inset: test of reproducibility of the single colloid electro-phoretic response as proven by six subsequent runs per point in which—for theidentical colloid—the KCl concentration is varied in the

17 Nov 2010: Repeating this test for various degreesof supercoiling during incubation sinc, we found that theextension of the plateau was almost equal to sinc (as can beverified in Fig.

17 Nov 2010: test the more com-plicated behavior of supercoiled DNA.

30 Oct 2010: Direct measurements of force and extension on single moleculesof DNA provide the most rigorous test to date of theories of entropicelasticity.

1 Nov 2010: Increases in accuracy to10210 g are anticipated. Applications to geology, search for netcharge on atoms, fifth force experiments, and test of generalrelativity are suggested.Anotheratomopticdevicedemonstratedrecently (79) is a flexible hollow

4 Oct 2010: Electrokineticconsistency tests are proposed in order to assess the validity of the ζ -potentials obtained.

13 Nov 2010: Another test of surface equilibrium of DNA molecules on mica can be obtained from the equilibrium distribution of bend angles between two DNA segments separated by a distance, e , along the

18 Nov 2010: Quantitative testing of thetheory is more difficult; comparison of the absolute magnitudes of the mobilityfrom equation (9) or its high-field extensions to experiment is not a useful test,mainly because

28 Oct 2010: REVIEW OF SCIENTIFIC INSTRUMENTS VOLUME 75, NUMBER 9 SEPTEMBER 2004. REVIEW ARTICLE. Optical trappingKeir C. Neuman and Steven M. Blocka). Department of Biological Sciences, and Department of Applied Physics, Stanford University,Stanford, California

4 Oct 2010: Electrophoresis of DNA and other polyelectrolytes:Physical mechanisms. Jean-Louis Viovy. Laboratoire Physico-Chimie Curie (UMR CNRS 168), Institut Curie Section de Recherche,26 Rue d’Ulm, 75230 Paris cedex 05, France. The dramatic recent advances