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Showing 1 to 12 of 98 entries
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Investigation of Line Width Narrowing and Spectral Jumps of Single Stable Defect Centers in ZnO at Cryogenic Temperature.

Nano letters

Neitzke O, Morfa A, Wolters J, Schell AW, Kewes G, Benson O.
PMID: 25816112
Nano Lett. 2015 May 13;15(5):3024-9. doi: 10.1021/nl504941q. Epub 2015 Mar 27.

Finding new solid state defect centers in novel host materials is crucial for realizing integrated hybrid quantum photonic devices. We present a preparation method for defect centers with photostable bright single photon emission in zinc oxide, a material with...

Unequal adaptive value of changing cigarette use during pregnancy for heavy, moderate, and light smokers.

American journal of human biology : the official journal of the Human Biology Council

Schell LM, Relethford JH, Madan M, Naamon PBN, Hook EB.
PMID: 28548433
Am J Hum Biol. 1994;6(1):25-32. doi: 10.1002/ajhb.1310060106.

To determine the effects of changes in maternal cigarette use during pregnancy on birthweight, a sample of Caucasian births free of major malformations (n = 9,943) was examined. Births were stratified by level of maternal smoking in the first...

Wiring up pre-characterized single-photon emitters by laser lithography.

Scientific reports

Shi Q, Sontheimer B, Nikolay N, Schell AW, Fischer J, Naber A, Benson O, Wegener M.
PMID: 27507165
Sci Rep. 2016 Aug 10;6:31135. doi: 10.1038/srep31135.

Future quantum optical chips will likely be hybrid in nature and include many single-photon emitters, waveguides, filters, as well as single-photon detectors. Here, we introduce a scalable optical localization-selection-lithography procedure for wiring up a large number of single-photon emitters...

Manipulation of single nanodiamonds to ultrathin fiber-taper nanofibers and control of NV-spin states toward fiber-integrated λ-systems.

Nanotechnology

Fujiwara M, Yoshida K, Noda T, Takashima H, Schell AW, Mizuochi N, Takeuchi S.
PMID: 27713185
Nanotechnology. 2016 Nov 11;27(45):455202. doi: 10.1088/0957-4484/27/45/455202. Epub 2016 Oct 07.

We report on the coupling of single nitrogen vacancy (NV) centers to ultrathin fiber-taper nanofibers by the manipulation of single diamond nanocrystals on the nanofibers under real-time observation of nanodiamond fluorescence. Spin-dependent fluorescence of the single NV centers is...

Oecologia

Hinz W, Scheil HG.
PMID: 28307204
Oecologia. 1972 Mar;11(1):45-54. doi: 10.1007/BF00345709.

The filtration rates of four species of eulamellibranchs (Dreissena polymorpha, Sphaerium corneum, Pisidium amnicum and Pisidium casertanum) are measured at high (14°, 15° respectively 20°C) and low (5° respectively 6°C) temperatures by an indirect method. The differences of filtration...

Lithium Diffusion Pathway in Li(1.3)Al(0.3)Ti(1.7)(PO4)3 (LATP) Superionic Conductor.

Inorganic chemistry

Monchak M, Hupfer T, Senyshyn A, Boysen H, Chernyshov D, Hansen T, Schell KG, Bucharsky EC, Hoffmann MJ, Ehrenberg H.
PMID: 26930220
Inorg Chem. 2016 Mar 21;55(6):2941-5. doi: 10.1021/acs.inorgchem.5b02821. Epub 2016 Mar 01.

The Al-substituted LiTi2(PO4)3 powders Li(1+x)Al(x)Ti(2-x)(PO4)3 (LATP) were successfully prepared by a water-based sol-gel process with subsequent calcination and sintering. The crystal structure of obtained samples was characterized at different temperatures using high-resolution synchrotron-based X-ray and neutron powder diffraction. Possible...

Detailed numerical analysis of photon emission from a single light emitter coupled with a nanofiber Bragg cavity.

Optics express

Takashima H, Fujiwara M, Schell AW, Takeuchi S.
PMID: 27410656
Opt Express. 2016 Jun 27;24(13):15050-8. doi: 10.1364/OE.24.015050.

Coupling of a single dipole with a nanofiber Bragg cavity (NFBC) approximating an actually fabricated structure was numerically analyzed using three dimensional finite-difference time-domain simulations for different dipole positions. For the given model structure, the Purcell factor and coupling...

Control of Virulence and Pathogenicity Genes of Ralstonia Solanacearum by an Elaborate Sensory Network.

Annual review of phytopathology

Schell MA.
PMID: 11701844
Annu Rev Phytopathol. 2000 Sep;38:263-292. doi: 10.1146/annurev.phyto.38.1.263.

Ralstonia solanacearum causes a lethal bacterial wilt disease of diverse plants. It invades the xylem vessels of roots and disseminates into the stem where it multiplies and wilts by excessive exopolysaccharide production. Many of its key extracytoplasmic virulence and...

The solitary pulmonary metastasis. An appraisal of the primary site.

The Journal of thoracic and cardiovascular surgery

SCHELL HW.
PMID: 14498188
J Thorac Cardiovasc Surg. 1961 Oct;42:540-5.

No abstract available.

Impact of a genetically engineered bacterium with enhanced alkaline phosphatase activity on marine phytoplankton communities.

Applied and environmental microbiology

Sobecky PA, Schell MA, Moran MA, Hodson RE.
PMID: 16535222
Appl Environ Microbiol. 1996 Jan;62(1):6-12. doi: 10.1128/aem.62.1.6-12.1996.

An indigenous marine Achromobacter sp. was isolated from coastal Georgia seawater and modified in the laboratory by introduction of a plasmid with a phoA hybrid gene that directed constitutive overproduction of alkaline phosphatase. The effects of this "indigenous" genetically...

Use of RNAlater in fluorescence-activated cell sorting (FACS) reduces the fluorescence from GFP but not from DsRed.

BMC research notes

Zaitoun I, Erickson CS, Schell K, Epstein ML.
PMID: 21134271
BMC Res Notes. 2010 Dec 06;3:328. doi: 10.1186/1756-0500-3-328.

BACKGROUND: Flow cytometry utilizes signals from fluorescent markers to separate targeted cell populations for gene expression studies. However, the stress of the FACS process could change normal gene expression profiles. RNAlater could be used to stop such changes in...

Nanoengineering and characterization of gold dipole nanoantennas with enhanced integrated scattering properties.

Nanotechnology

Wissert MD, Schell AW, Ilin KS, Siegel M, Eisler HJ.
PMID: 19779233
Nanotechnology. 2009 Oct 21;20(42):425203. doi: 10.1088/0957-4484/20/42/425203. Epub 2009 Sep 25.

In this paper we present our approach for engineering gold dipole nanoantennas. Using electron-beam lithography we have been able to produce arrays of single gold antennas with dimensions from 70 to 300 nm total length with a highly reproducible...

Showing 1 to 12 of 98 entries