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3376 research data, page 1 of 338

Optical ferris wheel for ultracold atoms

We propose a versatile optical ring lattice suitable for trapping cold and quantum degenerate atomic samples. We demonstrate the realisation of intensity patterns from pairs of Laguerre-Gauss (exp(iℓθ)) modes with different l indices. These patterns can be rotated by introducing a frequency shift between the modes. We can generate bright ring lattices for trapping atoms in red-detuned light, and dark ring lattices suitable for trapping atoms with minimal heating in the optical vortices of blu...

Holographic microscopy of holographically trapped three-dimensional structures

Sang-Hyuk Lee; Grier, David G (2007)
Publisher: Figshare
Holographic optical trapping uses forces exerted by computer-generated holograms to organize microscopic materials into three-dimensional structures. In a complementary manner, holographic video microscopy uses real-time recordings of in-line holograms to create time-resolved volumetric images of three-dimensional microstructures. The combination is exceptionally effective for organizing, inspecting and analyzing soft-matter systems.

Sea-bed photographs (benthos) from the Weddell Sea (Antarctica) along profile PS65/246-2

Gutt, Julian; Potthoff, Michael (2007)
Publisher: PANGAEA - Data Publisher for Earth & Environmental Science

Birth, marriage and death certificates

Drs H.H.E. Delger (2007)
Publisher: Data Archiving and Networked Services (DANS)

Calcareous nannofossils from the Paleocene-Eocene Thermal Maximum of the equatorial Atlantic, supplement to: Mutterlose, Jörg; Linnert, Christian; Norris, Richard D (2007): Calcareous nannofossils from the Paleocene-Eocene Thermal Maximum of the equatorial Atlantic (ODP Site 1260B): Evidence for tropical warming. Marine Micropaleontology, 65(1-2), 13-31

Mutterlose, Jörg; Linnert, Christian; Norris, Richard D. (2007)
Publisher: PANGAEA - Data Publisher for Earth & Environmental Science
Independent geological and micropaleontological lines of evidence suggest a ~200 kyr, period of intense warming covering the Paleocene/Eocene boundary interval (PETM). It has been suggested that this warming was initiated by a massive release of methane from the continental slopes. Among other groups of organisms, calcareous nannofossils are characterized by a remarkable increase of warm water taxa during this interval. Here we report the tropical response of calcareous nannofossils to the Pa...

Magnetostratigraphy of ODP Site 177-1092 (Table 1), supplement to: Evans, Helen F; Westerhold, Thomas; Paulsen, Harald; Channell, James E T (2007): Astronomical ages for Miocene polarity chrons C4Ar-C5r (9.3-11.2 Ma), and for three excursion chrons within C5n.2n. Earth and Planetary Science Letters, 256(3-4), 455-465

Evans, Helen F.; Westerhold, Thomas; Paulsen, Harald; Channell, James E. T. (2007)
Publisher: PANGAEA - Data Publisher for Earth & Environmental Science
Ocean Drilling Program (ODP) Site 1092 from the sub-Antarctic South Atlantic produced a clear magnetic stratigraphy for the Late Miocene [Evans et al., 2003, doi:10.1046/j.1365-246X.2003.01916.x]. Three short intervals of reverse polarity were identified within the long (~1 Myr) normal polarity subchron C5n.2n. These excursion chrons were tentatively correlated to the three "cryptochrons" identified within subchron C5n.2n from NE Pacific marine magnetic anomaly data. New oxygen isotope data f...

Features used in mirCoS.

Sheng, Ying; G Engström, Pär; Lenhard, Boris (2007)
Publisher: Figshare
*Two values are given for features calculated separately for human and mouse.

Double-Stranded DNA Dissociates into Single Strands When Dragged into a Poor Solvent

DNA displays a richness of biologically relevant supramolecular structures, which depend on both sequence and ambient conditions. The effect of dragging double-stranded DNA (dsDNA) from water into poor solvent on the double-stranded structure is still unclear because of condensation. Here, we employed single molecule techniques based on atomic force microscopy and molecular dynamics (MD) simulations to investigate the change in structure and mechanics of DNA during the ambient cha...

Validation Tests

In Sopko et al. 1 is the strongest inhibition. 4 is the least. NT: not tested.

Spin-Crossover Behavior in Cyanide-Bridged Iron(II)−Silver(I) Bimetallic 2D Hofmann-like Metal−Organic Frameworks

Two new series of compounds formulated {Fe(3-Xpyridine)2[Ag(CN)2]2} (X = F (1), Cl (2), Br (3), I (4)) and {Fe(3-Xpyridine)2[Ag(CN)2][Ag(3-Xpyridine)(CN)2]}·3-Xpy (X = Br (5), I (6)) have been synthesized and characterized. The six compounds are made up of stacking of slightly corrugated two-dimensional coordination polymers defined by sharing {Fe4[Ag(CN)2]4}n motifs. The stacking is different for the two families. In compounds 1−4 the layers are organized by pairs displaying arge...