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Showing 1 to 12 of 296 entries
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Efficient Killing of Murine Pluripotent Stem Cells by Natural Killer (NK) Cells Requires Activation by Cytokines and Partly Depends on the Activating NK Receptor NKG2D.

Frontiers in immunology

Gröschel C, Hübscher D, Nolte J, Monecke S, Sasse A, Elsner L, Paulus W, Trenkwalder C, Polić B, Mansouri A, Guan K, Dressel R.
PMID: 28890717
Front Immunol. 2017 Jul 26;8:870. doi: 10.3389/fimmu.2017.00870. eCollection 2017.

Natural killer (NK) cells play an important role as cytotoxic effector cells, which scan the organism for infected or tumorigenic cells. Conflicting data have been published whether NK cells can also kill allogeneic or even autologous pluripotent stem cells...

Health economics and integrated care: a growing and challenging relationship.

International journal of integrated care

Evers SM, Paulus AT.
PMID: 26150762
Int J Integr Care. 2015 Jun 17;15:e024. doi: 10.5334/ijic.2201. eCollection 2015.

No abstract available.

Characterization of 700 μJ T rays generated during high-power laser solid interaction.

Optics letters

Gopal A, Singh P, Herzer S, Reinhard A, Schmidt A, Dillner U, May T, Meyer HG, Ziegler W, Paulus GG.
PMID: 24322111
Opt Lett. 2013 Nov 15;38(22):4705-7. doi: 10.1364/OL.38.004705.

Laser-produced solid density plasmas are well-known as table-top sources of electromagnetic radiation. Recent studies have shown that energetic broadband terahertz pulses (T rays) can also be generated from laser-driven compact ion accelerators. Here we report the measurement of record-breaking...

DISCRETE-CHOICE EXPERIMENT VERSE RATING SCALE EXERCISE TO EVALUATE THE RELATIVE IMPORTANCE OF ATTRIBUTES: A STUDY OF THE MAASTRICHT ISPOR STUDENT CHAPTER.

Value in health : the journal of the International Society for Pharmacoeconomics and Outcomes Research

Wijnen BF, van der Putten IM, Groothuis S, de Kinderen RJ, Noben CY, Paulus AT, Ramaekers BL, Vogel GC, Hiligsmann M.
PMID: 27201891
Value Health. 2014 Nov;17(7):A568. doi: 10.1016/j.jval.2014.08.1893. Epub 2014 Oct 26.

No abstract available.

Influence of Concurrent Finger Movements on Transcranial Direct Current Stimulation (tDCS)-Induced Aftereffects.

Frontiers in behavioral neuroscience

Shirota Y, Terney D, Antal A, Paulus W.
PMID: 28955211
Front Behav Neurosci. 2017 Sep 12;11:169. doi: 10.3389/fnbeh.2017.00169. eCollection 2017.

Transcranial direct current stimulation (tDCS) has been reported to have bidirectional influence on the amplitude of motor-evoked potentials (MEPs) in resting participants in a polarity-specific manner: anodal tDCS increased and cathodal tDCS decreased them. More recently, the effects of...

Nanometer resolution optical coherence tomography using broad bandwidth XUV and soft x-ray radiation.

Scientific reports

Fuchs S, Rödel C, Blinne A, Zastrau U, Wünsche M, Hilbert V, Glaser L, Viefhaus J, Frumker E, Corkum P, Förster E, Paulus GG.
PMID: 26860894
Sci Rep. 2016 Feb 10;6:20658. doi: 10.1038/srep20658.

Optical coherence tomography (OCT) is a non-invasive technique for cross-sectional imaging. It is particularly advantageous for applications where conventional microscopy is not able to image deeper layers of samples in a reasonable time, e.g. in fast moving, deeper lying...

CEP-stable tunable THz-emission originating from laser-waveform-controlled sub-cycle plasma-electron bursts.

Optics express

Balčiūnas T, Lorenc D, Ivanov M, Smirnova O, Zheltikov AM, Dietze D, Unterrainer K, Rathje T, Paulus GG, Baltuška A, Haessler S.
PMID: 26193509
Opt Express. 2015 Jun 15;23(12):15278-89. doi: 10.1364/OE.23.015278.

We study THz-emission from a plasma driven by an incommensurate-frequency two-colour laser field. A semi-classical transient electron current model is derived from a fully quantum-mechanical description of the emission process in terms of sub-cycle field-ionization followed by continuum-continuum electron...

NEMA image quality phantom measurements and attenuation correction in integrated PET/MR hybrid imaging.

EJNMMI physics

Ziegler S, Jakoby BW, Braun H, Paulus DH, Quick HH.
PMID: 26501819
EJNMMI Phys. 2015 Dec;2(1):18. doi: 10.1186/s40658-015-0122-3. Epub 2015 Aug 20.

BACKGROUND: In integrated PET/MR hybrid imaging the evaluation of PET performance characteristics according to the NEMA standard NU 2-2007 is challenging because of incomplete MR-based attenuation correction (AC) for phantom imaging. In this study, a strategy for CT-based AC...

Do manual and voxel-based morphometry measure the same? A proof of concept study.

Frontiers in psychiatry

Focke NK, Trost S, Paulus W, Falkai P, Gruber O.
PMID: 24782790
Front Psychiatry. 2014 Apr 08;5:39. doi: 10.3389/fpsyt.2014.00039. eCollection 2014.

Voxel-based morphometry (VBM) is a commonly used method to study volumetric variations on a whole brain basis. However, it is often criticized for potential confounds, mainly based on imperfect spatial registration. We therefore aimed to evaluate if VBM and...

Harmonic generation from relativistic plasma surfaces in ultrasteep plasma density gradients.

Physical review letters

Rödel C, an der Brügge D, Bierbach J, Yeung M, Hahn T, Dromey B, Herzer S, Fuchs S, Pour AG, Eckner E, Behmke M, Cerchez M, Jäckel O, Hemmers D, Toncian T, Kaluza MC, Belyanin A, Pretzler G, Willi O, Pukhov A, Zepf M, Paulus GG.
PMID: 23005951
Phys Rev Lett. 2012 Sep 21;109(12):125002. doi: 10.1103/PhysRevLett.109.125002. Epub 2012 Sep 19.

Harmonic generation in the limit of ultrasteep density gradients is studied experimentally. Observations reveal that, while the efficient generation of high order harmonics from relativistic surfaces requires steep plasma density scale lengths (L(p)/λ < 1), the absolute efficiency of...

Feynman's path-integral approach for intense-laser-atom interactions.

Science (New York, N.Y.)

Salières P, Carré B, Le Déroff L, Grasbon F, Paulus GG, Walther H, Kopold R, Becker W, Milosević DB, Sanpera A, Lewenstein M.
PMID: 11340197
Science. 2001 May 04;292(5518):902-5. doi: 10.1126/science.108836.

Atoms interacting with intense laser fields can emit electrons and photons of very high energies. An intuitive and quantitative explanation of these highly nonlinear processes can be found in terms of a generalization of classical Newtonian particle trajectories, the...

Generation of multiple-charged optical vortex solitons in a saturable nonlinear medium.

Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics

Dreischuh A, Paulus GG, Zacher F, Grasbon F, Walther H.
PMID: 11970516
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 1999 Nov;60(5):6111-7. doi: 10.1103/physreve.60.6111.

Multiply charged optical vortex solitons (OVS) (m=1,...,4) are generated in a thermal nonlinear medium with saturation. The respective soliton constants are found to be linearly proportional to the topological charges. Special attention is paid to the modulational instability, which...

Showing 1 to 12 of 296 entries