###
*Cell-paths* in *mono*- and *bichromatic* *line* *arrangements* in the *plane*∗

, 2014

"... We prove that the dual graph of any arrangement of n lines in general position always contains a path of length at least n2/4. Further, we show that in every arrangement of n red and blue lines — in general position and not all of the same color — there is a simple path through at least n cells wher ..."

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We prove that the dual graph of any

*arrangement*of n*lines*in general position always contains a*path*of length at least n2/4. Further, we show that in every*arrangement*of n red and blue*lines*— in general position and not all of the same color — there is a simple*path*through at least n*cells*###
*Cell-Paths* in *Mono*-and *Bichromatic* *Line* *Arrangements* in the *Plane* *

"... Abstract We show that in every arrangement of n red and blue lines -in general position and not all of the same color -there is a path through a linear number of cells where red and blue lines are crossed alternatingly (and no cell is revisited). When all lines have the same color, and hence the pr ..."

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Abstract We show that in every

*arrangement*of n red and blue*lines*-in general position and not all of the same color -there is a*path*through a linear number of*cells*where red and blue*lines*are crossed alternatingly (and no*cell*is revisited). When all*lines*have the same color, and hence### Colored Ray Configurations

"... We study the cyclic sequences induced at infinity by pairwise-disjoint colored rays with apices on a given bal-anced bichromatic point set, where the color of a ray is inherited from the color of its apex. We derive a lower bound on the number of color sequences that can be realized from any fixed p ..."

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We study the cyclic sequences induced at infinity by pairwise-disjoint colored rays with apices on a given bal-anced

*bichromatic*point set, where the color of a ray is inherited from the color of its apex. We derive a lower bound on the number of color sequences that can be realized from any fixed### Invited Speakers

"... This volume contains the proceedings of the 25th Canadian Conference on Computational Geometry (CCCG’13), held in ..."

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This volume contains the proceedings of the 25th Canadian Conference on Computational Geometry (CCCG’13), held in

### Two-DimensionalCentrifugationfor Desk-TopClinicalChemistry

"... We have developed a new system for clinical chemistry analysis, the VisionTMSystem, in which centrifugal force is usedto separate whole blood, measure reagent and plasma volumes,and completeall steps requiredfora spectrophoto-metricanalysis.The system is based on use of a multicham-bered plastictest ..."

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-bered plastictest pack containingliquidreagents,whichcan be centrifugedat 500 x g in two

*planes*, oriented at right angles to each other. Alternating centrifugal fields allows liquid reagents and plasma to flow into highly precise mea-sunngand mixingchambers. A uniqueflash lamp and diode array spectrometer provide### Experimental Studies of Fundamental Problems in Quantum Optics 12. PERSONAL AUTHOR(S)

"... State of Oregon, actigby an (if applica ble) ..."

### unknown title

, 2004

"... Photopigment optical density of the human foveola and a paradoxical senescent increase outside the fovea ..."

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Photopigment optical density of the human foveola and a paradoxical senescent increase outside the fovea

### zur Erlangung des akademischen Grades

"... This thesis discusses experiments on the all-optical trapping and manipulation of laser-cooled metastable argon atoms at a surface. A magneto-optical surface trap (MOST) has been realized and studied. This novel hybrid trap combines a magneto-optical trap at a metallic surface with an optical evanes ..."

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This thesis discusses experiments on the all-optical trapping and manipulation of laser-cooled metastable argon atoms at a surface. A magneto-optical surface trap (MOST) has been realized and studied. This novel hybrid trap combines a magneto-optical trap at a metallic surface with an optical evanescent-wave atom mirror. It allows laser-cooling and trapping of atoms in con-tact with an evanescent light field that separates the atomic cloud from the surface by a fraction of an optical wavelength. Based on this work, the continuous loading of a planar matter waveguide has been demonstrated. Loading into the waveguide, which was formed by the optical potential of a red-detuned standing light wave above the surface, was achieved via evanescent-field optical pumping from the MOST in sub-m distance from the surface. In subsequent experiments, several light-induced atom-optical elements have been demonstrated in the planar waveguide geometry, including a continuous atom source, a switchable channel guide, an atom detector and an optical surface lattice. The source,