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Showing 13 to 24 of 392 entries
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Seven-pinhole tomography of the thyroid.

IEEE transactions on medical imaging

Van Giessen JW, Viergever MA, De Graaf CN.
PMID: 18243991
IEEE Trans Med Imaging. 1986;5(2):84-90. doi: 10.1109/TMI.1986.4307751.

In this paper we introduce a new application of the sevenpinhole (7P) collimator: tomographic imaging of the thyroid. The collimator design has been reoptimized for this particular application by diminishing the distance from the collimator plate to the crystal...

Time-coded aperture tomography: experimental results.

IEEE transactions on medical imaging

Van Giessen JW, Viergever MA, De Graaf CN, Dane HJ.
PMID: 18244014
IEEE Trans Med Imaging. 1986;5(4):222-8. doi: 10.1109/TMI.1986.4307780.

In this paper, we discuss the applicability of a time-coded aperture system especially designed for thyroid tomography on the basis of phantom experiments. Our studies show that 1) the quality of the reconstructions is high (e.g., a cold spot...

Superfluid vortex front at T→0: decoupling from the reference frame.

Physical review letters

Hosio JJ, Eltsov VB, de Graaf R, Heikkinen PJ, Hänninen R, Krusius M, L'vov VS, Volovik GE.
PMID: 22026868
Phys Rev Lett. 2011 Sep 23;107(13):135302. doi: 10.1103/PhysRevLett.107.135302. Epub 2011 Sep 21.

Steady-state turbulent motion is created in superfluid (3)He-B at low temperatures in the form of a turbulent vortex front, which moves axially along a rotating cylindrical container of (3)He-B and replaces vortex-free flow with vortex lines at constant density....

Towards a low-spin configuration in extended metal atom chains. Theoretical study of trimetallic systems with 22 metal electrons.

Dalton transactions (Cambridge, England : 2003)

Tabookht Z, de Graaf C, López X.
PMID: 22042414
Dalton Trans. 2012 Jan 14;41(2):498-504. doi: 10.1039/c1dt11260k. Epub 2011 Oct 31.

Different electronic configurations of a series of trinuclear heterometallic chains with 22 metallic electrons, MM'M(dpa)(4)X(2) (M = Co, Rh; M' = Ni, Pd; X = Cl, NCS), have been modelled in search of new systems with novel electrical properties....

Stability and dissipation of laminar vortex flow in superfluid 3He-B.

Physical review letters

Eltsov VB, de Graaf R, Heikkinen PJ, Hosio JJ, Hänninen R, Krusius M, L'vov VS.
PMID: 20867649
Phys Rev Lett. 2010 Sep 17;105(12):125301. doi: 10.1103/PhysRevLett.105.125301. Epub 2010 Sep 14.

A central question in the dynamics of vortex lines in superfluids is dissipation on approaching the zero temperature limit T→0. From both NMR measurements and vortex filament calculations, we find that vortex flow remains laminar up to large Reynolds...

Verification of systems biology research in the age of collaborative competition.

Nature biotechnology

Meyer P, Alexopoulos LG, Bonk T, Califano A, Cho CR, de la Fuente A, de Graaf D, Hartemink AJ, Hoeng J, Ivanov NV, Koeppl H, Linding R, Marbach D, Norel R, Peitsch MC, Rice JJ, Royyuru A, Schacherer F, Sprengel J, Stolle K, Vitkup D, Stolovitzky G.
PMID: 21904331
Nat Biotechnol. 2011 Sep 08;29(9):811-5. doi: 10.1038/nbt.1968.

No abstract available.

Developing computational model-based diagnostics to analyse clinical chemistry data.

Briefings in bioinformatics

van Schalkwijk DB, van Bochove K, van Ommen B, Freidig AP, van Someren EP, van der Greef J, de Graaf AA.
PMID: 20056728
Brief Bioinform. 2010 Jul;11(4):403-16. doi: 10.1093/bib/bbp071. Epub 2010 Jan 07.

This article provides methodological and technical considerations to researchers starting to develop computational model-based diagnostics using clinical chemistry data. These models are of increasing importance, since novel metabolomics and proteomics measuring technologies are able to produce large amounts of...

On the mechanism of the photoinduced magnetism in copper octacyanomolybdates.

Chemical communications (Cambridge, England)

Carvajal MA, Reguero M, de Graaf C.
PMID: 20596576
Chem Commun (Camb). 2010 Aug 21;46(31):5737-9. doi: 10.1039/c0cc00792g. Epub 2010 Jul 01.

Ab initio calculations show that a possible mechanism for the photomagnetism in copper octacyanomolybdate compounds consists of the initial excitation of the diamagnetic Cu(II)-Mo(IV-CS) pair to a Cu(II)-Mo(IV-T) state, whose geometry relaxation stabilizes the magnetic doublet and quartet states.

Feasibility study of integral property retrieval for tropospheric aerosol from Raman lidar data using principal component analysis.

Applied optics

de Graaf M, Apituley A, Donovan DP.
PMID: 23545974
Appl Opt. 2013 Apr 01;52(10):2173-86. doi: 10.1364/AO.52.002173.

A method is introduced to derive integral properties of the aerosol size distribution, e.g., aerosol mass, from tropospheric multiwavelength Raman lidar aerosol extinction and backscatter data, using an adapted form of the principal component analysis (PCA) technique. Since the...

Interplay between local anisotropies in binuclear complexes.

Inorganic chemistry

Ruamps R, Maurice R, de Graaf C, Guihéry N.
PMID: 24758235
Inorg Chem. 2014 May 05;53(9):4508-16. doi: 10.1021/ic500180k. Epub 2014 Apr 23.

A systematic study has been undertaken to determine how local distortions affect the overall (molecular) magnetic anisotropies in binuclear complexes. For this purpose we have applied a series of distortions to two binuclear Ni(II) model complexes and extracted the...

Avian influenza A viruses: from zoonosis to pandemic.

Future virology

Richard M, de Graaf M, Herfst S.
PMID: 25214882
Future Virol. 2014 May 01;9(5):513-524. doi: 10.2217/fvl.14.30.

Zoonotic influenza A viruses originating from the animal reservoir pose a threat for humans, as they have the ability to trigger pandemics upon adaptation to and invasion of an immunologically naive population. Of particular concern are the H5N1 viruses...

Company Profile: Selventa, Inc.

Personalized medicine

Fryburg DA, Latino LJ, Tagliamonte J, Kenney RD, Song DH, Levine AJ, de Graaf D.
PMID: 29768793
Per Med. 2012 Aug;9(6):579-583. doi: 10.2217/pme.12.59.

Selventa, Inc. (MA, USA) is a biomarker discovery company that enables personalized healthcare. Originally founded as Genstruct, Inc., Selventa has undergone significant evolution from a technology-based service provider to an active partner in the development of diagnostic tests, functioning...

Showing 13 to 24 of 392 entries