TY  - JOUR
A1  - Hautzel, H.
A1  - Taylor, J. G.
A1  - Krause, B. J.
A1  - Schmitz, N.
A1  - Tellmann, L.
A1  - Ziemons, Karl
A1  - Shah, N. J.
A1  - Herzog, H.
A1  - Müller-Gärtner, H.-W.
T1  - The motion aftereffect: more than area V5/MT? Evidence from 15O-butanol PET studies
JF  - Brain Research
N2  - The motion aftereffect is a perceptual phenomenon which has been extensively investigated both psychologically and physiologically. Neuroimaging techniques have recently demonstrated that area V5/MT is activated during the perception of this illusion. The aim of this study was to test the hypothesis if a more broadly distributed network of brain regions subserves the motion aftereffect. To identify the neuronal structures involved in the perception of the motion aftereffect, regional cerebral blood flow (rCBF) measurements with positron emission tomography were performed in six normal volunteers. Data were analysed using SPM96. The motion-sensitive visual areas including area V5/MT were activated in both hemispheres. Additionally, the lateral parietal cortex bilaterally, the right dorsolateral prefrontal cortex, the anterior cingulate cortex and the left cerebellum showed significant increases in rCBF values during the experience of the waterfall illusion. In a further reference condition with identical attentional demand but no perception of a motion aftereffect elevated rCBF were found in these regions as well. In conclusion, our findings support the notion that the perceptual illusion of motion arises exclusively in the motion-sensitive visual area V5/MT. In addition, a more widespread network of brain regions including the prefrontal and parietal cortex is activated during the waterfall illusion which represents a non-motion aftereffect-specific subset of brain areas but is involved in more basic attentional processing and cognition.
Y1  - 2001
SN  - 0006-8993
VL  - 892
IS  - 2
SP  - 281
EP  - 292
ER  - 
TY  - JOUR
A1  - Streun, M.
A1  - Brandenburg, G.
A1  - Larue, H.
A1  - Zimmermann, E.
A1  - Ziemons, Karl
A1  - Halling, H.
T1  - Pulse recording by free-running sampling
JF  - IEEE Transactions on Nuclear Science
N2  - Pulses from a position-sensitive photomultiplier (PS-PMT) are recorded by free-running ADCs at a sampling rate of 40 MHz. A four-channel acquisition board has been developed which is equipped with four 12-bit ADCs connected to one field programmable gate array (FPGA). The FPGA manages data acquisition and the transfer to the host computer. It can also work as a digital trigger, so a separate hardware trigger can be omitted. The method of free-running sampling provides a maximum of information, besides the pulse charge and amplitude also pulse shape and starting time are contained in the sampled data. This information is crucial for many tasks such as distinguishing between different scintillator materials, determination of radiation type, pile-up recovery, coincidence detection or time-of-flight applications. The absence of an analog integrator allows very high count rates to be dealt with. Since this method is to be employed in positron emission tomography (PET), the position of an event is also important. The simultaneous readout of four channels allows localization by means of center-of-gravity weighting. First results from a test setup with LSO scintillators coupled to the PS-PMT are presented here
Y1  - 2001
SN  - 0018-9499
VL  - 48
IS  - 3
SP  - 524
EP  - 526
ER  - 
TY  - JOUR
A1  - Vitusevich, S. A.
A1  - Förster, Arnold
A1  - Lüth, H.
A1  - Belyaev, A. E.
A1  - Danylyuk, S. V.
A1  - Konakova, R. V.
A1  - Sheka, D. I.
T1  - Resonant spectroscopy of electric-field-induced superlattices
JF  - Journal of Applied Physics. 90 (2001), H. 6
Y1  - 2001
SN  - 1089-7550
U6  - https://doi.org/10.1063/1.1392956
SP  - 2857
EP  - 2861
ER  - 
TY  - JOUR
A1  - Stock, J.
A1  - Malindretos, J.
A1  - Indlekofer, K.M.
A1  - Pöttgens, Michael
A1  - Förster, Arnold
A1  - Lüth, Hans
T1  - A Vertical Resonant Tunneling Transistor for Application in Digital Logic Circuits
JF  - IEEE Transactions on Electron Devices (T-ED). 48 (2001), H. 6
Y1  - 2001
SN  - 0018-9383
SP  - 1028
EP  - 1032
ER  - 
TY  - JOUR
A1  - Thielemann, Frank
A1  - Lüdtke, C.
T1  - Balanced Scorecard - Von der Vision zur  Strategie
JF  - Wirtschafts-Nachrichten. 46 (2001), H. 9
Y1  - 2001
SN  - 1436-5588
SP  - 10
EP  - f.
ER  - 
TY  - JOUR
A1  - Biselli, Manfred
A1  - Jelinek, N.
A1  - Schmidt, S.
A1  - Noll, T.
T1  - Bioreaktoren zur Kultivierung blutbildender Zellen / Jelinek, N. ; Schmidt, S. ; Noll, T. ; Biselli, M.
JF  - Bioforum. 24 (2001), H. 6
Y1  - 2001
SN  - 0940-0079
SP  - 418
EP  - 419
ER  - 
TY  - JOUR
A1  - Biselli, Manfred
A1  - Hilbert, U.
A1  - Noll, T.
T1  - Cultivation of Human HCMV Specific Lymphocytes – An Example for  Adoptive Immunotherapy / Hilbert, U. ; Biselli, M. ; Noll, T.
JF  - Animal cell technology : from target to market ; Tylösand, Sweden, June 10 - 14, 2001 / ed. by E. Lindner-Olsson ...
Y1  - 2001
SN  - 1-4020-0264-5
N1  - Proceedings of the ... ESACT meeting ; 17
SP  - 558
EP  - 561
PB  - Kluwer
CY  - Dordrecht
ER  - 
TY  - JOUR
A1  - Scherer, Ulrich W.
A1  - Tomasberger, T.
A1  - Veltkamp, T. C.
A1  - Booij, A. S.
T1  - Radiocesium Removal from High Level Liquid Waste and Immobilisation in Sodium SilicoTitanate for Geological Disposal / T. Tomasberger, T.C. Veltkamp, A.S. Booij, U.W. Scherer
JF  - Radiochimica Acta. 89 (2001), H. 3
Y1  - 2001
SN  - 0033-8230
SP  - 145
EP  - 150
ER  - 
TY  - JOUR
A1  - Havermann, Marc
A1  - Haertig, J.
A1  - Rey, C.
A1  - George, F.
T1  - PIV measurements in Mach 3.5 and 4.5 shock tunnel flow / Haertig, J. ; Havermann, M. ; Rey, C. ; George, F.
Y1  - 2001
N1  - AIAA-2001-699 
Aerospace Sciences Meeting and Exhibit, 39th, Reno, NV, Jan. 8-11, 2001
PB  - -
ER  - 
TY  - JOUR
A1  - Barsov, S.
A1  - Bechstedt, U.
A1  - Hardt, Arno
T1  - ANKE, a new facility for medium energy hadron physics at COSY-Jülich / S. Barsov [u.a.]
JF  - Nuclear instruments and methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment. Vol. 462, iss. 3
Y1  - 2001
SN  - 0167-5087 (Print) ; 0168-9002 (E-journal)
SP  - 364
EP  - 381
ER  - 
TY  - JOUR
A1  - Dielmann, Klaus-Peter
T1  - Mikrogasturbinen : Technik und Anwendung
JF  - BWK : das Energie-Fachmagazin . 53 (2001), H. 6
Y1  - 2001
SN  - 0006-9612
N1  - 2. ISSN: 1618-193X
SP  - 6
EP  - 9
ER  - 
TY  - JOUR
A1  - Jeromin, Günter Erich
T1  - Tetrabenzo[a,c,h,j]phenoxazine-18-yl a new stable neutral radical
JF  - Tetrahedron Letters  . 42 (2001), H. 10
Y1  - 2001
SN  - 0040-4039
N1  - ISSN der E-Ausg.: 1359-8562
SP  - 1863
EP  - 1865
ER  - 
TY  - JOUR
A1  - Mertens, Josef
A1  - Henke, Rolf
T1  - Adaptive technologies for future civil air transport
JF  - Air & Space Europe. 3 (2001), H. 3-4
Y1  - 2001
SN  - 1247-5793
SP  - 80
EP  - 82
ER  - 
TY  - JOUR
A1  - Weber, Hans-Joachim
T1  - Verbundforschungsprojekt Multimediale 3D-Visualisierung der Herzmuskelerregung
JF  - Intelligente, innovative Produktentwicklung  für  die  industrielle  Praxis. Stenzel, Horst [Hrsg.]
Y1  - 2001
N1  - Forschungsverbund Multimedia an Fachhochschulen in Nordrhein-Westfalen
SP  - 99
EP  - 112
PB  - Forschungverbund Multimedia an Fachhochschulen
CY  - Köln
ER  - 
TY  - JOUR
A1  - Naujokat, Anke
T1  - Aachen: Symposium - Maulnes und der Manierismus in Frankreich
JF  - Bauwelt. 92 (2001), H. 22
Y1  - 2001
SN  - 0931-6590
SP  - 4
ER  - 
TY  - JOUR
A1  - Naujokat, Anke
T1  - Köln: Pyramide - Haus für die Ewigkeit
JF  - Bauwelt. 92 (2001), H. 48
Y1  - 2001
SN  - 0931-6590
SP  - 5
ER  - 
TY  - JOUR
A1  - Hüning, Felix
A1  - Leineweber, A.
A1  - Jacobs, H.
A1  - Lueken, H.
T1  - Nitrogen Ordering and ferromagnetic properties of -Fe3N1+x (0.10  x  0.39) and -Fe3(N0.80C0.20)1.38 / Leineweber, A. ; Jacobs, H. ; Hüning, F. ; Lueken, H. ; Kockelmann, W.
JF  - Journal of Alloys and Compounds. 316 (2001), H. 1-2
Y1  - 2001
SN  - 1873-4669
SP  - 21
EP  - 38
PB  - -
ER  - 
TY  - JOUR
A1  - Hüning, Felix
A1  - Sparta, K.
A1  - Redhammer, G. J.
A1  - Roussel, P.
T1  - Structural Phase Transition in the 2D Spin Dimer Compound SrCu2(BO3)2 / Sparta, K. ; Redhammer, G. J. ; Roussel, P. ; Heger, G. ; Roth, G. ; Ionescu, A. Lemmens, P. ; Grove, M. ; Güntherrodt, G. ; Hüning, F. ; Lueken, H. ; Kageyama, H. ; Onizuka, K ; Ueda
JF  - The European Physical Journal B - Condensed Matter and Complex Systems. 19 (2001), H. 4
Y1  - 2001
SN  - 1434-6036
SP  - 507
EP  - 516
PB  - -
ER  - 
TY  - JOUR
A1  - Hüning, Felix
A1  - Luken, Heiko
A1  - Schilder, Herbert
A1  - Eifert, Thomas
T1  - Magnetochemistry: Compounds and Concepts / Lueken, Heiko ; Schilder, Herbert ; Eifert, Thomas ; Handrick, Klaus ; Hüning, Felix
JF  - Advances in Solid State Physics. 201 (2001)
Y1  - 2001
SP  - 515
EP  - 532
PB  - -
ER  - 
TY  - JOUR
A1  - Kotliar, Konstantin
A1  - Svetlova, O. V.
A1  - Zinoviewa, N. V.
A1  - Krylova, I. S.
T1  - Elaboration of the conception of the biomechanical model of the aqueous intraocular outflow / Svetlova, O. V. ; Zinoviewa, N. V. ; Krylova, I. S. ; Koshitz, I. N. ; Smolnikov, B. A. ; Fedorova, E. M. ; Kotliar, K. E.
JF  - Rossiiskii zhurnal biomekhaniki = Russian Journal of biomechanics. 5 (2001), H. 3
Y1  - 2001
SN  - 1812-5123
SP  - 23
EP  - 27
PB  - -
ER  -