@article{Grap1996, author = {Grap, Rolf Dietmar}, title = {Die Integration von Instandhaltungsaufgaben in die Arbeitsgruppe}, series = {Gruppenarbeit in der chemischen Industrie / hrsg. vom Bundesarbeitgeberverband Chemie e.V., Wiesbaden}, journal = {Gruppenarbeit in der chemischen Industrie / hrsg. vom Bundesarbeitgeberverband Chemie e.V., Wiesbaden}, publisher = {Haefner}, address = {Heidelberg}, pages = {52 -- 57}, year = {1996}, language = {de} } @article{Grap1995, author = {Grap, Rolf Dietmar}, title = {Re-Integration von Instandhaltungsaufgaben}, series = {IO-Management / Hrsg.: ETH-Zentrum f{\"u}r Unternehmenswissenschaft BWI. 64 (1995), H. 6}, journal = {IO-Management / Hrsg.: ETH-Zentrum f{\"u}r Unternehmenswissenschaft BWI. 64 (1995), H. 6}, isbn = {0019-9281 ; 1422-360}, pages = {81 -- 85}, year = {1995}, language = {de} } @article{Grap1990, author = {Grap, Rolf Dietmar}, title = {Informationsmanagement im technischen B{\"u}ro}, series = {IO-Management / Hrsg.: ETH-Zentrum f{\"u}r Unternehmenswissenschaft BWI. 59 (1990), H. 10}, journal = {IO-Management / Hrsg.: ETH-Zentrum f{\"u}r Unternehmenswissenschaft BWI. 59 (1990), H. 10}, isbn = {0019-9281 ; 1422-360}, pages = {17 -- 21}, year = {1990}, language = {de} } @article{Grap2000, author = {Grap, Rolf Dietmar}, title = {Gruppenarbeit: nicht immer das „Ei des Kolumbus"!}, series = {Personal : Zeitschrift f{\"u}r Human Resource Management. 52 (2000), H. 2}, journal = {Personal : Zeitschrift f{\"u}r Human Resource Management. 52 (2000), H. 2}, isbn = {0031-5605}, pages = {90 -- 94}, year = {2000}, language = {de} } @article{Grap1990, author = {Grap, Rolf Dietmar}, title = {Erfassung und Analyse von Arbeitsanforderungen}, series = {Personal-Management : zukunftsorientierte Personalarbeit / J{\"u}rgen Berthel ... (Hrsg.)}, journal = {Personal-Management : zukunftsorientierte Personalarbeit / J{\"u}rgen Berthel ... (Hrsg.)}, publisher = {Verl. Moderne Industrie}, address = {Landsberg/Lech}, isbn = {3-478-14140-0}, year = {1990}, language = {de} } @article{Grap1989, author = {Grap, Rolf Dietmar}, title = {Softwareergonomie bei der Arbeit mit Großrechnern}, series = {pro Ort (1989)}, journal = {pro Ort (1989)}, pages = {31}, year = {1989}, language = {de} } @article{Grap1990, author = {Grap, Rolf Dietmar}, title = {Computer verstehen lernen : Grafische Simulation rechnerinterner Abl{\"a}ufe als Qualifizierungsmittel}, series = {Industrie-Anzeiger. 112 (1990), H. 53/54}, journal = {Industrie-Anzeiger. 112 (1990), H. 53/54}, isbn = {0019-9036}, year = {1990}, language = {de} } @article{Grap2009, author = {Grap, Rolf Dietmar}, title = {Mit Ingenieuren und Betriebswirten gemeinsam zum Industrial Engineer}, series = {Industrial engineering : Fachzeitschrift des REFA-Bundesverbandes. 62 (2009), H. 2}, journal = {Industrial engineering : Fachzeitschrift des REFA-Bundesverbandes. 62 (2009), H. 2}, isbn = {1866-2269}, pages = {10 -- 12}, year = {2009}, language = {de} } @article{Grap2007, author = {Grap, Rolf Dietmar}, title = {Wrench-time-Studien : Instrumente zur Verbesserung von reaktiven Instandhaltungen bei Großanlagen / von Rolf Grap}, series = {REFA-Nachrichten : Zeitschrift des REFA-Bundesverbandes e.V., Verband f{\"u}r Arbeitsgestaltung, Betriebsorganisation und Unternehmensentwicklung. 60 (2007), H. 3}, journal = {REFA-Nachrichten : Zeitschrift des REFA-Bundesverbandes e.V., Verband f{\"u}r Arbeitsgestaltung, Betriebsorganisation und Unternehmensentwicklung. 60 (2007), H. 3}, isbn = {0033-6874}, pages = {22 -- 29}, year = {2007}, language = {de} } @article{Grap2007, author = {Grap, Rolf Dietmar}, title = {If you think, education is expensive, try incompetence}, series = {Beschaffung aktuell (2007)}, journal = {Beschaffung aktuell (2007)}, isbn = {0341-4507}, pages = {62 -- 63}, year = {2007}, language = {en} } @article{GrandeMeffertSchoenbergeretal.2012, author = {Grande, Marion and Meffert, Elisabeth and Schoenberger, Eva and Jung, Stefanie and Frauenrath, Tobias and Huber, Walter and Hussmann, Katja and Moormann, Mareike and Heim, Stefan}, title = {From a concept to a word in a syntactically complete sentence: An fMRI study on spontaneous language production in an overt picture description task}, series = {NeuroImage}, volume = {61}, journal = {NeuroImage}, number = {3}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1522-2586}, doi = {10.1016/j.neuroimage.2012.03.087}, pages = {702 -- 714}, year = {2012}, abstract = {Spontaneous language has rarely been subjected to neuroimaging studies. This study therefore introduces a newly developed method for the analysis of linguistic phenomena observed in continuous language production during fMRI. Most neuroimaging studies investigating language have so far focussed on single word or — to a smaller extent — sentence processing, mostly due to methodological considerations. Natural language production, however, is far more than the mere combination of words to larger units. Therefore, the present study aimed at relating brain activation to linguistic phenomena like word-finding difficulties or syntactic completeness in a continuous language fMRI paradigm. A picture description task with special constraints was used to provoke hesitation phenomena and speech errors. The transcribed speech sample was segmented into events of one second and each event was assigned to one category of a complex schema especially developed for this purpose. The main results were: conceptual planning engages bilateral activation of the precuneus. Successful lexical retrieval is accompanied - particularly in comparison to unsolved word-finding difficulties - by the left middle and superior temporal gyrus. Syntactic completeness is reflected in activation of the left inferior frontal gyrus (IFG) (area 44). In sum, the method has proven to be useful for investigating the neural correlates of lexical and syntactic phenomena in an overt picture description task. This opens up new prospects for the analysis of spontaneous language production during fMRI.}, language = {en} } @article{GrajewskiKoesterTurek2009, author = {Grajewski, Matthias and K{\"o}ster, Michael and Turek, Stefan}, title = {Mathematical and Numerical Analysis of a Robust and Efficient Grid Deformation Method in the Finite Element Context}, series = {SIAM Journal on Scientific Computing}, volume = {31}, journal = {SIAM Journal on Scientific Computing}, number = {2}, publisher = {Society for Industrial and Applied Mathematics}, address = {Philadelphia, Pa.}, doi = {10.1137/050639387}, pages = {1539 -- 1557}, year = {2009}, language = {en} } @article{GrajewskiKoesterTurek2010, author = {Grajewski, Matthias and K{\"o}ster, Michael and Turek, Stefam}, title = {Numerical analysis and implementational aspects of a new multilevel grid deformation method}, series = {Applied Numerical Mathematics}, volume = {60}, journal = {Applied Numerical Mathematics}, number = {8}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0168-9274}, doi = {10.1016/j.apnum.2010.03.017}, pages = {767 -- 781}, year = {2010}, abstract = {Recently, we introduced and mathematically analysed a new method for grid deformation (Grajewski et al., 2009) [15] we call basic deformation method (BDM) here. It generalises the method proposed by Liao et al. (Bochev et al., 1996; Cai et al., 2004; Liao and Anderson, 1992) [4], [6], [20]. In this article, we employ the BDM as core of a new multilevel deformation method (MDM) which leads to vast improvements regarding robustness, accuracy and speed. We achieve this by splitting up the deformation process in a sequence of easier subproblems and by exploiting grid hierarchy. Being of optimal asymptotic complexity, we experience speed-ups up to a factor of 15 in our test cases compared to the BDM. This gives our MDM the potential for tackling large grids and time-dependent problems, where possibly the grid must be dynamically deformed once per time step according to the user's needs. Moreover, we elaborate on implementational aspects, in particular efficient grid searching, which is a key ingredient of the BDM.}, language = {en} } @article{GrajewskiKleefeld2023, author = {Grajewski, Matthias and Kleefeld, Andreas}, title = {Detecting and approximating decision boundaries in low-dimensional spaces}, series = {Numerical Algorithms}, volume = {93}, journal = {Numerical Algorithms}, number = {4}, publisher = {Springer Science+Business Media}, address = {Dordrecht}, issn = {1572-9265}, pages = {35 Seiten}, year = {2023}, abstract = {A method for detecting and approximating fault lines or surfaces, respectively, or decision curves in two and three dimensions with guaranteed accuracy is presented. Reformulated as a classification problem, our method starts from a set of scattered points along with the corresponding classification algorithm to construct a representation of a decision curve by points with prescribed maximal distance to the true decision curve. Hereby, our algorithm ensures that the representing point set covers the decision curve in its entire extent and features local refinement based on the geometric properties of the decision curve. We demonstrate applications of our method to problems related to the detection of faults, to multi-criteria decision aid and, in combination with Kirsch's factorization method, to solving an inverse acoustic scattering problem. In all applications we considered in this work, our method requires significantly less pointwise classifications than previously employed algorithms.}, language = {en} } @article{GrajewskiHronTurek2005, author = {Grajewski, Matthias and Hron, Jaroslav and Turek, Stefan}, title = {Dual weighted a posteriori error estimation for a new nonconforming linear finite element on quadrilaterals}, series = {Applied Numerical Mathematics}, volume = {54}, journal = {Applied Numerical Mathematics}, number = {3-4}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0168-9274}, doi = {10.1016/j.apnum.2004.09.016}, pages = {504 -- 518}, year = {2005}, abstract = {After a short introduction of a new nonconforming linear finite element on quadrilaterals recently developed by Park, we derive a dual weighted residual-based a posteriori error estimator (in the sense of Becker and Rannacher) for this finite element. By computing a corresponding dual solution we estimate the error with respect to a given target error functional. The reliability and efficiency of this estimator is analyzed in several numerical experiments.}, language = {en} } @article{GrajewskiHronTurek2006, author = {Grajewski, Matthias and Hron, Jaroslav and Turek, Stefan}, title = {Numerical analysis for a new non-conforming linear finite element on quadrilaterals}, series = {Journal of Computational and Applied Mathematics}, volume = {193}, journal = {Journal of Computational and Applied Mathematics}, number = {1}, issn = {0377-0427}, doi = {10.1016/j.cam.2005.05.024}, pages = {38 -- 50}, year = {2006}, language = {en} } @article{GossmannFrotscherLinderetal.2016, author = {Goßmann, Matthias and Frotscher, Ralf and Linder, Peter and Bayer, Robin and Epple, U. and Staat, Manfred and Temiz Artmann, Ayseg{\"u}l and Artmann, Gerhard}, title = {Mechano-pharmacological characterization of cardiomyocytes derived from human induced pluripotent stem cells}, series = {Cellular physiology and biochemistry}, volume = {38}, journal = {Cellular physiology and biochemistry}, number = {3}, publisher = {Karger}, address = {Basel}, issn = {1421-9778 (Online)}, doi = {10.1159/000443124}, pages = {1182 -- 1198}, year = {2016}, abstract = {Background/Aims: Common systems for the quantification of cellular contraction rely on animal-based models, complex experimental setups or indirect approaches. The herein presented CellDrum technology for testing mechanical tension of cellular monolayers and thin tissue constructs has the potential to scale-up mechanical testing towards medium-throughput analyses. Using hiPS-Cardiac Myocytes (hiPS-CMs) it represents a new perspective of drug testing and brings us closer to personalized drug medication. Methods: In the present study, monolayers of self-beating hiPS-CMs were grown on ultra-thin circular silicone membranes and deflect under the weight of the culture medium. Rhythmic contractions of the hiPS-CMs induced variations of the membrane deflection. The recorded contraction-relaxation-cycles were analyzed with respect to their amplitudes, durations, time integrals and frequencies. Besides unstimulated force and tensile stress, we investigated the effects of agonists and antagonists acting on Ca²⁺ channels (S-Bay K8644/verapamil) and Na⁺ channels (veratridine/lidocaine). Results: The measured data and simulations for pharmacologically unstimulated contraction resembled findings in native human heart tissue, while the pharmacological dose-response curves were highly accurate and consistent with reference data. Conclusion: We conclude that the combination of the CellDrum with hiPS-CMs offers a fast, facile and precise system for pharmacological, toxicological studies and offers new preclinical basic research potential.}, language = {en} } @article{GossmannThomasHorvathetal.2020, author = {Gossmann, Matthias and Thomas, Ulrich and Horv{\´a}th, Andr{\´a}s and Dragicevic, Elena and Stoelzle-Feix, Sonja and Jung, Alexander and Raman, Aravind Hariharan and Staat, Manfred and Linder, Peter}, title = {A higher-throughput approach to investigate cardiac contractility in vitro under physiological mechanical conditions}, series = {Journal of Pharmacological and Toxicological Methods}, volume = {105}, journal = {Journal of Pharmacological and Toxicological Methods}, number = {Article 106843}, publisher = {Elsevier}, address = {New York, NY}, doi = {10.1016/j.vascn.2020.106843}, year = {2020}, language = {en} } @article{GosslaWanzek2003, author = {Gossla, Ulrich and Wanzek, Thorsten}, title = {Seßlestalbr{\"u}cke - Verbundbr{\"u}cke mit einteiligem Querschnitt / Wanzek, Thorsten; Gossla, Ulrich}, series = {Aktuelles aus Forschung und Praxis im Umfeld von Mechanik und Statik : Jubil{\"a}umsschrift H. Rothert / Hrsg.: Bernd Zastrau ... Technische Universit{\"a}t Dresden, Fakult{\"a}t Bauingenieurwesen, Inst. f{\"u}r Mechanik und Fl{\"a}chentragwerke}, journal = {Aktuelles aus Forschung und Praxis im Umfeld von Mechanik und Statik : Jubil{\"a}umsschrift H. Rothert / Hrsg.: Bernd Zastrau ... Technische Universit{\"a}t Dresden, Fakult{\"a}t Bauingenieurwesen, Inst. f{\"u}r Mechanik und Fl{\"a}chentragwerke}, publisher = {Selbstverl. der Techn. Univ.}, address = {Dresden}, pages = {149 -- 158}, year = {2003}, language = {de} } @article{GosslaWanzek2003, author = {Gossla, Ulrich and Wanzek, T.}, title = {Fahrbahnplattentasuch an Verbundbr{\"u}cken unter laufendem Verkehr / U. Gossla; Th. Wanzek}, series = {Sicherheit und Wirtschaftlichkeit durch Messtechnik, Monitoring und Beanspruchungsanalyse : Tagung Braunschweig, 12. und 13. Juni 2003 / VDI-VDE-Gesellschaft Mess- und Automatisierungstechnik}, journal = {Sicherheit und Wirtschaftlichkeit durch Messtechnik, Monitoring und Beanspruchungsanalyse : Tagung Braunschweig, 12. und 13. Juni 2003 / VDI-VDE-Gesellschaft Mess- und Automatisierungstechnik}, publisher = {VDI-Verl.}, address = {D{\"u}sseldorf}, isbn = {3-18-091757-1}, pages = {467 -- 472}, year = {2003}, language = {de} }