TY - JOUR A1 - Martin, Conrad A1 - Frauenrath, Tobias A1 - Özerdem, Celal A1 - Renz, Wolfgang A1 - Niendorf, Thoralf T1 - Development and evaluation of a small and mobile Magneto Alert Sensor (MALSE) to support safety requirements for magnetic resonance imaging JF - European Radiology N2 - Objective The purpose of this study is to (i) design a small and mobile Magnetic field ALert SEnsor (MALSE), (ii) to carefully evaluate its sensors to their consistency of activation/deactivation and sensitivity to magnetic fields, and (iii) to demonstrate the applicability of MALSE in 1.5 T, 3.0 T and 7.0 T MR fringe field environments. Methods MALSE comprises a set of reed sensors, which activate in response to their exposure to a magnetic field. The activation/deactivation of reed sensors was examined by moving them in/out of the fringe field generated by 7TMR. Results The consistency with which individual reed sensors would activate at the same field strength was found to be 100% for the setup used. All of the reed switches investigated required a substantial drop in ambient magnetic field strength before they deactivated. Conclusions MALSE is a simple concept for alerting MRI staff to a ferromagnetic object being brought into fringe magnetic fields which exceeds MALSEs activation magnetic field. MALSE can easily be attached to ferromagnetic objects within the vicinity of a scanner, thus creating a barrier for hazardous situations induced by ferromagnetic parts which should not enter the vicinity of an MR-system to occur. KW - MRI KW - MR safety KW - Magneto alert sensor KW - High field MRI KW - Uktrahigh field MRI Y1 - 2011 U6 - https://doi.org/10.1007/s00330-011-2153-z SN - 1432-1084 VL - 21 SP - 2187 EP - 2192 PB - Springer CY - Berlin, Heidelberg ER - TY - CHAP A1 - Dachwald, Bernd A1 - Xu, Changsheng A1 - Feldmann, Marco A1 - Plescher, Engelbert A1 - Digel, Ilya A1 - Artmann, Gerhard T1 - Development and testing of a subsurface probe for detection of life in deep ice : [abstract] N2 - We present the novel concept of a combined drilling and melting probe for subsurface ice research. This probe, named “IceMole”, is currently developed, built, and tested at the FH Aachen University of Applied Sciences’ Astronautical Laboratory. Here, we describe its first prototype design and report the results of its field tests on the Swiss Morteratsch glacier. Although the IceMole design is currently adapted to terrestrial glaciers and ice shields, it may later be modified for the subsurface in-situ investigation of extraterrestrial ice, e.g., on Mars, Europa, and Enceladus. If life exists on those bodies, it may be present in the ice (as life can also be found in the deep ice of Earth). KW - Eisschicht KW - Sonde KW - subsurface probe KW - subsurface ice research Y1 - 2011 ER - TY - CHAP A1 - Achenbach, Timm A1 - Göttsche, Joachim A1 - Kaufhold, O. A1 - Hoffschmidt, Bernhard T1 - Development of an edge module for open volumetric receiver for the use of the radiation at the receiver boundary region T2 - SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain Y1 - 2011 CY - Granada ER - TY - JOUR A1 - Miyamoto, Ko-ichiro A1 - Yoshida, Midori A1 - Sakai, Taito A1 - Matsuzaka, Atsushi A1 - Wagner, Torsten A1 - Kanoh, Sanoh A1 - Yoshinobu, Tatsuo A1 - Schöning, Michael Josef T1 - Differential setup of light-addressable potentiometric sensor with an enzyme reactor in a flow channel JF - Japanese Journal of Applied Physics. 50 (2011) Y1 - 2011 SN - 0021-4922 SP - 04DL08-1 EP - 04DL08-5 PB - Japan Society of Applied Physics CY - Bristol ER - TY - JOUR A1 - Bongaerts, Johannes A1 - Esser, Simon A1 - Lorbach, Volker A1 - Al-Momani, Lóay A1 - Müller, Michael A. A1 - Franke, Dirk A1 - Grondal, Christoph A1 - Kurutsch, Anja A1 - Bujnicki, Robert A1 - Takors, Ralf A1 - Raeven, Leon A1 - Wubbolts, Marcel A1 - Bovenberg, Roel A1 - Nieger, Martin A1 - Schürmann, Melanie A1 - Trachtmann, Natalie A1 - Kozak, Stefan A1 - Sprenger, Georg A. A1 - Müller, Michael T1 - Diversity-oriented production of metabolites derived from chorismate and their use in organic synthesis JF - Angewandte Chemie International Edition Y1 - 2011 SN - 1521-3773 (E-Journal); 0570-0833 (Print); 1433-7851 (Print) VL - Vol. 50 IS - Iss. 34 SP - 7781 EP - 7786 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Parl, C. A1 - Larue, H. A1 - Streun, M. A1 - Ziemons, Karl T1 - Double-side-readout technique for SiPM-matrices JF - 2010 IEEE Nuclear Science Symposium Conference Record (NSS/MIC) N2 - In our case the double-side-method is used to minimize the complexity of a matrix-readout. Here the number of channels is reduced to 2√N̅. It is also possible to benefit from the method in a single pixel readout system. One signal can be used to measure position and energy of the event, the other one can be applied to a fast trigger-circuit at the same time. In a next step we will investigate timing behavior and electrical crosstalk of the circuit. Y1 - 2011 SN - 1095-7863 SP - 1486 EP - 1487 PB - IEEE CY - New York ER - TY - JOUR A1 - Hartung, Frank A1 - Kesici, Sinan A1 - Catrein, Daniel T1 - DRM protected Dynamic Adaptive HTTP Streaming JF - Proceedings of the 2011 ACM Multimedia Systems Conference [Elektronische Ressource] : February 23 - 25, 2011, San Jose, CA, USA / sponsored by: ACM SIGMM Y1 - 2011 SN - 9781450305181 N1 - ACM Multimedia Systems Conference ; (2 : ; 2011.02.23-25 : ; San Jose, Calif.) SP - 277 EP - 282 PB - ACM CY - New York, NY ER - TY - JOUR A1 - Eilmann, Britta A1 - Zweifel, Roman A1 - Buchmann, Nina A1 - Graf Pannatier, Elisabeth A1 - Rigling, Andreas T1 - Drought alters timing, quantity, and quality of wood formation in Scots pine JF - Journal of Experimental Botany Y1 - 2011 U6 - https://doi.org/10.1093/jxb/erq443 SN - 1460-2431 (Online) SN - 0022-0957 (Print) VL - 62 IS - 8 SP - 2763 EP - 2771 PB - Oxford University Press CY - Oxford ER - TY - JOUR A1 - Lanzl, Ines M. A1 - Seidova, Seid-Fatima A1 - Maier, Mathias A1 - Schmidt-Trucksäss, Arno A1 - Halle, Martin A1 - Kotliar, Konstantin T1 - Dynamic retinal vessel response to flicker in age-related macular degeneration patients before and after vascular endothelial growth factor inhibitor injection JF - Acta Ophthalmologica Y1 - 2011 SN - 1755-3768 VL - 89 IS - 5 SP - 472 EP - 479 PB - Wiley CY - Weinheim ER - TY - JOUR A1 - Kotliar, Konstantin A1 - Lanzl, Ines M. A1 - Schmidt-Trucksäss, A. A1 - Sitnikova, Diana A1 - Ali, Mohammad A1 - Blume, Katharina A1 - Halle, Martin A1 - Hansser, Henner T1 - Dynamic retinal vessel response to flicker in obesity: A methodological approach JF - Microvascular Research Y1 - 2011 SN - 0026-2862 VL - 81 IS - 1 SP - 123 EP - 128 PB - Elsevier CY - Amsterdam ER - TY - CHAP A1 - Hirsch, Tobias A1 - Ahlbrink, Nils A1 - Pitz-Paal, Robert A1 - Teixeira Boura, Cristiano José A1 - Hoffschmidt, Bernhard A1 - Gall, Jan A1 - Abel, Dirk A1 - Nolte, Vera A1 - Wirsum, Manfred A1 - Andersson, Joel A1 - Diehl, Moritz T1 - Dynamic simulation of a solar tower system with open volumetric receiver - a review on the ViCERP project T2 - SolarPACES 2011 : concentrating solar power and chemical energy systems : 20 - 23 September, 2011, Granada, Spain Y1 - 2011 CY - Granada ER - TY - CHAP A1 - Fissabre, Anke A1 - Niethammer, Bernd ED - Graf, Franz T1 - Early Glazed Curtain Walls and their Preservation T2 - Il vetro nell’architettura del XX secolo : conservazione e restauro = Glass in the 20th Century Architecture : Preservation and Restoration Y1 - 2011 SN - 9788887624502 SP - 185 EP - 199 PB - Mendrisio Academy Press CY - Mendrisio ER - TY - JOUR A1 - Bäcker, Matthias A1 - Delle, L. A1 - Poghossian, Arshak A1 - Biselli, Manfred A1 - Zang, Werner A1 - Wagner, P. A1 - Schöning, Michael Josef T1 - Electrochemical sensor array for bioprocess monitoring JF - Electrochimica Acta (2011) Y1 - 2011 VL - 56 IS - 26 SP - 9673 EP - 9678 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Prochnow, Nora A1 - Gebing, Tina A1 - Ladage, Kerstin A1 - Krause-Finkeldey, Dorothee A1 - Ourdi, Abessamad El A1 - Bitz, Andreas A1 - Streckert, Joachim A1 - Hansen, Volkert A1 - Dermietzel, Rolf T1 - Electromagnetic field effect or simply stress? Effects of UMTS exposure on hippocampal longterm plasticity in the context of procedure related hormone release JF - PLoS one N2 - Harmful effects of electromagnetic fields (EMF) on cognitive and behavioural features of humans and rodents have been controversially discussed and raised persistent concern about adverse effects of EMF on general brain functions. In the present study we applied radio-frequency (RF) signals of the Universal Mobile Telecommunications System (UMTS) to full brain exposed male Wistar rats in order to elaborate putative influences on stress hormone release (corticosteron; CORT and adrenocorticotropic hormone; ACTH) and on hippocampal derived synaptic long-term plasticity (LTP) and depression (LTD) as electrophysiological hallmarks for memory storage and memory consolidation. Exposure was computer controlled providing blind conditions. Nominal brain-averaged specific absorption rates (SAR) as a measure of applied mass-related dissipated RF power were 0, 2, and 10 W/kg over a period of 120 min. Comparison of cage exposed animals revealed, regardless of EMF exposure, significantly increased CORT and ACTH levels which corresponded with generally decreased field potential slopes and amplitudes in hippocampal LTP and LTD. Animals following SAR exposure of 2 W/kg (averaged over the whole brain of 2.3 g tissue mass) did not differ from the sham-exposed group in LTP and LTD experiments. In contrast, a significant reduction in LTP and LTD was observed at the high power rate of SAR (10 W/kg). The results demonstrate that a rate of 2 W/kg displays no adverse impact on LTP and LTD, while 10 W/kg leads to significant effects on the electrophysiological parameters, which can be clearly distinguished from the stress derived background. Our findings suggest that UMTS exposure with SAR in the range of 2 W/kg is not harmful to critical markers for memory storage and memory consolidation, however, an influence of UMTS at high energy absorption rates (10 W/kg) cannot be excluded. Y1 - 2011 U6 - https://doi.org/10.1371/journal.pone.0019437 VL - 6 IS - 5 PB - PLOS CY - San Francisco ER - TY - JOUR A1 - Preiß, C. A1 - Linder, Peter A1 - Wendt, K. A1 - Krystek, M. A1 - Digel, Ilya A1 - Gossmann, Matthias A1 - Temiz Artmann, Aysegül A1 - Porst, Dariusz A1 - Kayser, Peter A1 - Bassam, Rasha A1 - Artmann, Gerhard T1 - Engineering technology for plant physiology and plant stress research N2 - Plant physiology and plant stress: Plant physiology will be much more important for human mankind because of yield and cultivation limits of crops determined by their resistance to stress. To assess and counteract various stress factors it is necessary to conduct plant research to gain information and results on plant physiology. KW - Pflanzenphysiologie KW - Pflanzenstress KW - Pflanzenscanner KW - plant stress KW - plant scanner Y1 - 2011 ER - TY - JOUR A1 - Manea, Marilena A1 - Leurs, Ulrike A1 - Orban, Erika A1 - Baranyai, Zsuzsa A1 - Öhlschläger, Peter A1 - Marquardt, Andreas A1 - Schulcz, Akos A1 - Tejeda, Miguel T1 - Enhanced Enzymatic Stability and Antitumor Activity of Daunorubicin-GnRH-III Bioconjugates Modified in Position 4 JF - Bioconjugate Chemistry Y1 - 2011 SN - 1520-4812 VL - 22 IS - 7 SP - 1320 EP - 1329 PB - ACS CY - Washington, DC ER - TY - JOUR A1 - Lustfeld, H. A1 - Hirschfeld, J. A. A1 - Reißel, Martin A1 - Steffen, B. T1 - Enhancement of precision and reduction of measuring points in tomographic reconstructions JF - Physics Letters A Y1 - 2011 SN - 0375-9601 VL - 375 IS - 8 SP - 1167 EP - 1171 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Deppe, Veronika Maria A1 - Bongaerts, Johannes A1 - O'Connell, Timothy A1 - Maurer, Karl-Heinz A1 - Meinhardt, Friedhelm T1 - Enzymatic deglycation of Amadori products in bacteria JF - Applied microbiology and biotechnology Y1 - 2011 SN - 1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print) VL - Vol. 90 IS - Iss. 2 SP - 399 EP - 406 PB - Springer CY - Berlin ER - TY - JOUR A1 - Niehaus, F. A1 - Gabor, E. A1 - Wieland, S. A1 - Siegert, Petra A1 - Maurer, Karl-Heinz A1 - Eck, J. T1 - Enzymes for the laundry industries: tapping the vast metagenomic pool of alkaline proteases JF - Microbial biotechnology Y1 - 2011 SN - 1432-0614 (E-Journal); 0171-1741 (Print); 0175-7598 (Print); 0340-2118 (Print) VL - Vol. 4 IS - Iss. 6 SP - 767 EP - 776 PB - Springer CY - Berlin ER - TY - CHAP A1 - Usai, Pierpaolo A1 - Corucci, Alessandro A1 - Gligorevic, Snjezana A1 - Monorchio, Agostino T1 - Estimation of airport surface propagation channel: ray tracing model and measurements T2 - Proceedings of the 5th European Conference on Antennas and Propagation (EUCAP) : 11 - 15 April 2011, Rome, Italy Y1 - 2011 SN - 978-1-4577-0250-1 SP - 1634 EP - 1638 ER -