@article{EngelmannSeifertMuesetal.2019,
  author    = {Engelmann, Ulrich M. and Seifert, Julian and Mues, Benedikt and Roitsch, Stefan and M{\´e}nager, Christine and Schmidt, Annette M. and Slabu, Ioana},
  title     = {Heating efficiency of magnetic nanoparticles decreases with gradual immobilization in hydrogels},
  series = {Journal of Magnetism and Magnetic Materials},
  volume    = {471},
  journal   = {Journal of Magnetism and Magnetic Materials},
  number    = {1},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0304-8853},
  doi       = {10.1016/j.jmmm.2018.09.113},
  pages     = {486 -- 494},
  year      = {2019},
  language  = {en}
}
@article{QuittmannMeskemperAlbrachtetal.2020,
  author    = {Quittmann, Oliver J. and Meskemper, Joshua and Albracht, Kirsten and Abel, Thomas and Foitschik, Tina and Str{\"u}der, Heiko K.},
  title     = {Normalising surface EMG of ten upper-extremity muscles in handcycling: Manual resistance vs. sport-specific MVICs},
  series = {Journal of Electromyography and Kinesiology},
  volume    = {51},
  journal   = {Journal of Electromyography and Kinesiology},
  number    = {Article 102402},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1050-6411},
  doi       = {10.1016/j.jelekin.2020.102402},
  year      = {2020},
  abstract  = {Muscular activity in terms of surface electromyography (sEMG) is usually normalised to maximal voluntary isometric contractions (MVICs). This study aims to compare two different MVIC-modes in handcycling and examine the effect of moving average window-size. Twelve able-bodied male competitive triathletes performed ten MVICs against manual resistance and four sport-specific trials against fixed cranks. sEMG of ten muscles [M. trapezius (TD); M. pectoralis major (PM); M. deltoideus, Pars clavicularis (DA); M. deltoideus, Pars spinalis (DP); M. biceps brachii (BB); M. triceps brachii (TB); forearm flexors (FC); forearm extensors (EC); M. latissimus dorsi (LD) and M. rectus abdominis (RA)] was recorded and filtered using moving average window-sizes of 150, 200, 250 and 300 ms. Sport-specific MVICs were higher compared to manual resistance for TB, DA, DP and LD, whereas FC, TD, BB and RA demonstrated lower values. PM and EC demonstrated no significant difference between MVIC-modes. Moving average window-size had no effect on MVIC outcomes. MVIC-mode should be taken into account when normalised sEMG data are illustrated in handcycling. Sport-specific MVICs seem to be suitable for some muscles (TB, DA, DP and LD), but should be augmented by MVICs against manual/mechanical resistance for FC, TD, BB and RA.},
  language  = {en}
}
@article{WollbrinkMasloZimmeretal.2020,
  author    = {Wollbrink, Moritz and Maslo, Semir and Zimmer, Daniel and Abbas, Karim and Arntz, Kristian and Bergs, Thomas},
  title     = {Clamping and substrate plate system for continuous additive build-up and post-processing of metal parts},
  series = {Procedia CIRP},
  volume    = {93},
  journal   = {Procedia CIRP},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {2212-8271},
  doi       = {10.1016/j.procir.2020.04.015},
  pages     = {108 -- 113},
  year      = {2020},
  abstract  = {The manufacturing share of laser powder bed fusion (L-PBF) increases in industrial application, but still many process steps are manually operated. Additionally, it is not possible to achieve tight dimensional tolerances or low surfaces roughness. Hence, a process chain has to be set up to combine additive manufacturing (AM) with further machining technologies. To achieve a continuous workpiece flow as basis for further industrialization of L-PBF, the paper presents a novel substrate system and its application on L-PBF machines and post-processing. The substrate system consists of a zero-point clamping system and a matrix-like interface of contact pins to be substantially connected to the workpiece within the L-PBF process.},
  language  = {en}
}
@article{MeyerGranrathFeyerletal.2021,
  author    = {Meyer, Max-Arno and Granrath, Christian and Feyerl, G{\"u}nter and Richenhagen, Johannes and Kaths, Jakob and Andert, Jakob},
  title     = {Closed-loop platoon simulation with cooperative intelligent transportation systems based on vehicle-to-X communication},
  series = {Simulation Modelling Practice and Theory},
  volume    = {106},
  journal   = {Simulation Modelling Practice and Theory},
  number    = {Art. 102173},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1569-190X},
  doi       = {10.1016/j.simpat.2020.102173},
  year      = {2021},
  language  = {en}
}
@article{ArreolaOberlaenderMaetzkowetal.2017,
  author    = {Arreola, Julio and Oberl{\"a}nder, Jan and M{\"a}tzkow, M. and Keusgen, Michael and Sch{\"o}ning, Michael Josef},
  title     = {Surface functionalization for spore-based biosensors with organosilanes},
  series = {Electrochimica Acta},
  volume    = {241},
  journal   = {Electrochimica Acta},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0013-4686},
  doi       = {10.1016/j.electacta.2017.04.157},
  pages     = {237 -- 243},
  year      = {2017},
  abstract  = {In the present work, surface functionalization of different sensor materials was studied. Organosilanes are well known to serve as coupling agent for biomolecules or cells on inorganic materials. 3-aminopropyltriethoxysilane (APTES) was used to attach microbiological spores time to an interdigitated sensor surface. The functionality and physical properties of APTES were studied on isolated sensor materials, namely silicon dioxide (SiO2) and platinum (Pt) as well as the combined material on sensor level. A predominant immobilization of spores could be demonstrated on SiO2 surfaces. Additionally, the impedance signal of APTES-functionalized biosensor chips has been investigated.},
  language  = {en}
}
@article{RiekeStollenwerkDahmenetal.2018,
  author    = {Rieke, Christian and Stollenwerk, Dominik and Dahmen, Markus and Pieper, Martin},
  title     = {Modeling and optimization of a biogas plant for a demand-driven energy supply},
  series = {Energy},
  volume    = {145},
  journal   = {Energy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0360-5442},
  doi       = {10.1016/j.energy.2017.12.073},
  pages     = {657 -- 664},
  year      = {2018},
  abstract  = {Due to the Renewable Energy Act, in Germany it is planned to increase the amount of renewable energy carriers up to 60\%. One of the main problems is the fluctuating supply of wind and solar energy. Here biogas plants provide a solution, because a demand-driven supply is possible. Before running such a plant, it is necessary to simulate and optimize the process. This paper provides a new model of a biogas plant, which is as accurate as the standard ADM1 model. The advantage compared to ADM1 is that it is based on only four parameters compared to 28. Applying this model, an optimization was installed, which allows a demand-driven supply by biogas plants. Finally the results are confirmed by several experiments and measurements with a real test plant.},
  language  = {en}
}
@article{OberlaenderMayerGreeffetal.2018,
  author    = {Oberl{\"a}nder, Jan and Mayer, Marlena and Greeff, Anton and Keusgen, Michael and Sch{\"o}ning, Michael Josef},
  title     = {Spore-based biosensor to monitor the microbicidal efficacy of gaseous hydrogen peroxide sterilization processes},
  series = {Biosensors and Bioelectronics},
  volume    = {104},
  journal   = {Biosensors and Bioelectronics},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0956-5663},
  doi       = {10.1016/j.bios.2017.12.045},
  pages     = {87 -- 94},
  year      = {2018},
  abstract  = {In this work, a spore-based biosensor is evaluated to monitor the microbicidal efficacy of sterilization processes applying gaseous hydrogen peroxide (H2O2). The sensor is based on interdigitated electrode structures (IDEs) that have been fabricated by means of thin-film technologies. Impedimetric measurements are applied to study the effect of sterilization process on spores of Bacillus atrophaeus. This resilient microorganism is commonly used in industry to proof the sterilization efficiency. The sensor measurements are accompanied by conventional microbiological challenge tests, as well as morphological characterizations with scanning electron microscopy (SEM) and transmission electron microscopy (TEM). The sensor measurements are correlated with the microbiological test routines. In both methods, namely the sensor-based and microbiological one, a tailing effect has been observed. The results are evaluated and discussed in a three-dimensional calibration plot demonstrating the sensor's suitability to enable a rapid process decision in terms of a successfully performed sterilization.},
  language  = {en}
}
@article{PaulssenNgyugenKahlckeetal.2012,
  author    = {Paulßen, Elisabeth and Ngyugen, Hung Huy and Kahlcke, Nils and Deflon, Victor M. and Abram, Ulrich},
  title     = {Tricarbonyltechnetium(I) and -rhenium(I) complexes with N′-thiocarbamoylpicolylbenzamidines},
  series = {Polyhedron},
  volume    = {40},
  journal   = {Polyhedron},
  number    = {1},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0277-5387},
  doi       = {10.1016/j.poly.2012.04.008},
  pages     = {153 -- 158},
  year      = {2012},
  abstract  = {N,N-Dialkylamino(thiocarbonyl)-N′-picolylbenzamidines react with (NEt4)2[M(CO)3X3] (M = Re, X = Br; M = Tc, X = Cl) under formation of neutral [M(CO)3L] complexes in high yields. The monoanionic NNS ligands bind in a facial coordination mode and can readily be modified at the (CS)NR1R2 moiety. The complexes [99Tc(CO)3(LPyMor)] and [Re(CO)3(L)] (L = LPyMor, LPyEt) were characterized by X-ray diffraction. Reactions of [99mTc(CO)3(H2O)3]+ with the N′-thiocarbamoylpicolylbenzamidines give the corresponding 99mTc complexes. The ester group in HLPyCOOEt allows linkage between biomolecules and the metal core.},
  language  = {en}
}
@article{PaulssenLeLengkeeketal.2013,
  author    = {Paulßen, Elisabeth and Le, Van So and Lengkeek, Nigel and Pellegrini, Paul and Jackson, Tim and Greguric, Ivan and Weiner, Ron},
  title     = {Influence of Metal Ions on the 68Ga-labeling of DOTATATE},
  series = {Applied Radiation and Isotopes},
  volume    = {82},
  journal   = {Applied Radiation and Isotopes},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9800},
  doi       = {10.1016/j.apradiso.2013.08.010},
  pages     = {232 -- 238},
  year      = {2013},
  language  = {en}
}
@article{PaulssenLengkeekLeetal.2016,
  author    = {Paulßen, Elisabeth and Lengkeek, Nigel A. and Le, Van So and Pellegrini, Paul A. and Greguric, Ivan and Weiner, Ron},
  title     = {The role of additives in moderating the influence of Fe(III) and Cu(II) on the radiochemical yield of [⁶⁸Ga(DOTATATE)]},
  series = {Applied Radiation and Isotopes},
  volume    = {107},
  journal   = {Applied Radiation and Isotopes},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9800},
  doi       = {10.1016/j.apradiso.2015.09.008},
  pages     = {13 -- 16},
  year      = {2016},
  abstract  = {[⁶⁸Ga(DOTATATE)] has demonstrated its clinical usefulness. Both Fe³⁺ and Cu²⁺, potential contaminants in Gallium-68 generator eluent, substantially reduce the radiochemical (RC) yield of [⁶⁸Ga(DOTATATE)] if the metal/ligand ratio of 1:1 is exceeded. A variety of compounds were examined for their potential ability to reduce this effect. Most had no effect on RC yield. However, addition of phosphate diminished the influence of Fe³⁺ by likely forming an insoluble iron salt. Addition of ascorbic acid reduced Cu²⁺ and Fe³⁺ to Cu⁺ and Fe²⁺ respectively, both of which have limited impact on RC yields. At low ligand amounts (5 nmol DOTATATE), the addition of 30 nmol phosphate (0.19 mM) increased the tolerance of Fe3⁺ from 4 nmol to 10 nmol (0.06 mM), while the addition of ascorbic acid allowed high RC yields (>95\%) in the presence of 40 nmol Fe³⁺ (0.25 mM) and 100 nmol Cu²⁺ (0.63 mM). The effect of ascorbic acid was highly pH-dependant, and gave optimal results at pH 3.},
  language  = {en}
}
@article{PaulssenHoehrHouetal.2015,
  author    = {Paulßen, Elisabeth and Hoehr, Cornelia and Hou, Xinchi and Hanemaayer, Victoire and Zeisler, Stefan and Adam, Michael J. and Ruth, Thomas J. and Celler, Anna and Buckley, Ken and Benard, Francois and Schaffer, Paul},
  title     = {Production of Y-86 and other radiometals for research purposes using a solution target system},
  series = {Nuclear medicine and biology},
  volume    = {42},
  journal   = {Nuclear medicine and biology},
  number    = {11},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9614},
  doi       = {10.1016/j.nucmedbio.2015.06.005},
  pages     = {842 -- 849},
  year      = {2015},
  language  = {en}
}
@article{HoehrPaulssenBenardetal.2014,
  author    = {Hoehr, Cornelia and Paulßen, Elisabeth and Benard, Francois and Lee, Chris Jaeil and Hou, Xinchi and Badesso, Brian and Ferguson, Simon and Miao, Qing and Yang, Hua and Buckley, Ken and Hanemaayer, Victoire and Zeisler, Stefan and Ruth, Thomas and Celler, Anna and Schaffer, Paul},
  title     = {⁴⁴ᶢSc production using a water target on a 13 MeV cyclotron},
  series = {Nuclear medicine and biology},
  volume    = {41},
  journal   = {Nuclear medicine and biology},
  number    = {5},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9614},
  doi       = {10.1016/j.nucmedbio.2013.12.016},
  pages     = {401 -- 406},
  year      = {2014},
  abstract  = {Access to promising radiometals as isotopes for novel molecular imaging agents requires that they are routinely available and inexpensive to obtain. Proximity to a cyclotron center outfitted with solid target hardware, or to an isotope generator for the metal of interest is necessary, both of which can introduce significant hurdles in development of less common isotopes. Herein, we describe the production of ⁴⁴Sc (t₁⸝₂ = 3.97 h, Eavg,β⁺ = 1.47 MeV, branching ratio = 94.27\%) in a solution target and an automated loading system which allows a quick turn-around between different radiometallic isotopes and therefore greatly improves their availability for tracer development. Experimental yields are compared to theoretical calculations.},
  language  = {en}
}
@article{InfantinoPaulssenMostaccietal.2016,
  author    = {Infantino, Angelo and Paulßen, Elisabeth and Mostacci, Domiziano and Schaffer, Paul and Trinczek, Michael and Hoehr, Cornelia},
  title     = {Assessment of the production of medical isotopes using the Monte Carlo code FLUKA: Simulations against experimental measurements},
  series = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
  volume    = {366},
  journal   = {Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {1872-9584},
  doi       = {10.1016/j.nimb.2015.10.067},
  pages     = {117 -- 123},
  year      = {2016},
  abstract  = {The Monte Carlo code FLUKA is used to simulate the production of a number of positron emitting radionuclides, ¹⁸F, ¹³N, ⁹⁴Tc, ⁴⁴Sc, ⁶⁸Ga, ⁸⁶Y, ⁸⁹Zr, ⁵²Mn, ⁶¹Cu and ⁵⁵Co, on a small medical cyclotron with a proton beam energy of 13 MeV. Experimental data collected at the TR13 cyclotron at TRIUMF agree within a factor of 0.6 ± 0.4 with the directly simulated data, except for the production of ⁵⁵Co, where the simulation underestimates the experiment by a factor of 3.4 ± 0.4. The experimental data also agree within a factor of 0.8 ± 0.6 with the convolution of simulated proton fluence and cross sections from literature. Overall, this confirms the applicability of FLUKA to simulate radionuclide production at 13 MeV proton beam energy.},
  language  = {en}
}
@article{DotzauerPfeifferLaueretal.2019,
  author    = {Dotzauer, Martin and Pfeiffer, Diana and Lauer, Markus and Pohl, Marcel and Mauky, Eric and B{\"a}r, Katharina and Sonnleitner, Matthias and Z{\"o}rner, Wilfried and Hudde, Jessica and Schwarz, Bj{\"o}rn and Faßauer, Burkhardt and Dahmen, Markus and Rieke, Christian and Herbert, Johannes and Thr{\"a}n, Daniela},
  title     = {How to measure flexibility - Performance indicators for demand driven power generation from biogas plants},
  series = {Renewable Energy},
  journal   = {Renewable Energy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0960-1481},
  doi       = {10.1016/j.renene.2018.10.021},
  pages     = {135 -- 146},
  year      = {2019},
  language  = {en}
}
@article{Bernecker2016,
  author    = {Bernecker, Andreas},
  title     = {Divided we reform? Evidence from US welfare policies},
  series = {Journal of Public Economics},
  volume    = {142},
  journal   = {Journal of Public Economics},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0047-2727},
  doi       = {10.1016/j.jpubeco.2016.08.003},
  pages     = {24 -- 38},
  year      = {2016},
  abstract  = {Divided government is often thought of as causing legislative deadlock. I investigate the link between divided government and economic reforms using a novel data set on welfare reforms in US states between 1978 and 2010. Panel data regressions show that, under divided government, a US state is around 25\% more likely to adopt a welfare reform than under unified government. Several robustness checks confirm this counter-intuitive finding. Case study evidence suggests an explanation based on policy competition between governor, senate, and house.},
  language  = {en}
}
@article{Bernecker2014,
  author    = {Bernecker, Andreas},
  title     = {Do politicians shirk when reelection is certain? Evidence from the German parliament},
  series = {European Journal of Political Economy},
  volume    = {36},
  journal   = {European Journal of Political Economy},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0176-2680},
  doi       = {10.1016/j.ejpoleco.2014.07.001},
  pages     = {55 -- 70},
  year      = {2014},
  abstract  = {Does stiffer electoral competition reduce political shirking? For a micro-analysis of this question, I construct a new data set spanning the years 2005 to 2012 covering biographical and political information about German Members of Parliament (MPs), including their attendance rates in voting sessions. For the parliament elected in 2009, I show that indeed opposition party MPs who expect to face a close race in their district show significantly and relevantly lower absence rates in parliament beforehand. MPs of governing parties seem not to react significantly to electoral competition. These results are confirmed by an analysis of the parliament elected in 2005, by several robustness checks, and also by employing an instrumental variable strategy exploiting convenient peculiarities of the German electoral system. The study also shows how MPs elected via party lists react to different levels of electoral competition.},
  language  = {en}
}
@article{ArreolaKeusgenSchoening2019,
  author    = {Arreola, Julio and Keusgen, Michael and Sch{\"o}ning, Michael Josef},
  title     = {Toward an immobilization method for spore-based biosensors in oxidative environment},
  series = {Electrochimica Acta},
  volume    = {302},
  journal   = {Electrochimica Acta},
  publisher = {Elsevier},
  address   = {Amsterdam},
  doi       = {10.1016/j.electacta.2019.01.148},
  pages     = {394 -- 401},
  year      = {2019},
  language  = {en}
}
@article{Delaittre2019,
  author    = {Delaittre, Guillaume},
  title     = {Telechelic Poly(2-Oxazoline)s},
  series = {European Polymer Journal},
  journal   = {European Polymer Journal},
  number    = {In Press, Journal Pre-proof, 109281},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0014-3057},
  doi       = {10.1016/j.eurpolymj.2019.109281},
  year      = {2019},
  language  = {en}
}
@article{ArreolaKeusgenWagneretal.2019,
  author    = {Arreola, Julio and Keusgen, Michael and Wagner, Torsten and Sch{\"o}ning, Michael Josef},
  title     = {Combined calorimetric gas- and spore-based biosensor array for online monitoring and sterility assurance of gaseous hydrogen peroxide in aseptic filling machines},
  series = {Biosensors and Bioelectronics},
  volume    = {143},
  journal   = {Biosensors and Bioelectronics},
  number    = {111628},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0956-5663},
  doi       = {10.1016/j.bios.2019.111628},
  year      = {2019},
  language  = {en}
}
@article{DantismRoehlenDahmenetal.2020,
  author    = {Dantism, Shahriar and R{\"o}hlen, Desiree and Dahmen, Markus and Wagner, Torsten and Wagner, Patrick and Sch{\"o}ning, Michael Josef},
  title     = {LAPS-based monitoring of metabolic responses of bacterial cultures in a paper fermentation broth},
  series = {Sensors and Actuators B: Chemical},
  volume    = {320},
  journal   = {Sensors and Actuators B: Chemical},
  number    = {Art. 128232},
  publisher = {Elsevier},
  address   = {Amsterdam},
  issn      = {0925-4005},
  doi       = {10.1016/j.snb.2020.128232},
  year      = {2020},
  abstract  = {As an alternative renewable energy source, methane production in biogas plants is gaining more and more attention. Biomass in a bioreactor contains different types of microorganisms, which should be considered in terms of process-stability control. Metabolically inactive microorganisms within the fermentation process can lead to undesirable, time-consuming and cost-intensive interventions. Hence, monitoring of the cellular metabolism of bacterial populations in a fermentation broth is crucial to improve the biogas production, operation efficiency, and sustainability. In this work, the extracellular acidification of bacteria in a paper-fermentation broth is monitored after glucose uptake, utilizing a differential light-addressable potentiometric sensor (LAPS) system. The LAPS system is loaded with three different model microorganisms (Escherichia coli, Corynebacterium glutamicum, and Lactobacillus brevis) and the effect of the fermentation broth at different process stages on the metabolism of these bacteria is studied. In this way, different signal patterns related to the metabolic response of microorganisms can be identified. By means of calibration curves after glucose uptake, the overall extracellular acidification of bacterial populations within the fermentation process can be evaluated.},
  language  = {en}
}