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CommiTEE: An Efficient and Secure Commit-Chain Protocol using TEEs [article]

Andreas Erwig, Sebastian Faust, Siavash Riahi, Tobias Stöckert
2020 IACR Cryptology ePrint Archive  
Permissionless blockchain systems such as Bitcoin or Ethereum are slow and expensive, since transactions are processed in a distributed network by a large set of parties. To improve on these shortcomings, a prominent approach is given by so-called 2nd-layer protocols. In these protocols parties process transactions off-chain directly between each other, thereby drastically reducing the costly and slow interaction with the blockchain. In particular, in the optimistic case, when parties behave
more » ... estly, no interaction with the blockchain is needed. One of the most popular off-chain solutions are Plasma protocols (often also called commit-chains). These protocols are orchestrated by a so-called operator that maintains the system and processes transactions between parties. Importantly, the operator is trustless, i.e., even if it is malicious users of the system are guaranteed to not lose funds. To achieve this guarantee, Plasma protocols are highly complex and require involved and expensive dispute resolution processes. This has significantly slowed down development and deployment of these systems.
dblp:journals/iacr/ErwigFRS20 fatcat:vnk7orewjjhubguie33fgk34v4

X.509-Compliant Hybrid Certificates for the Post-Quantum Transition

Nina Bindel, Johannes Braun, Luca Gladiator, Tobias Stöckert, Johannes Wirth
2019 Journal of Open Source Software  
We provide an X.509-standard-compliant Java implementation of hybrid certificates, which enable the parallel usage of two independent cryptographic schemes within public key infrastructures and related applications. This enables a stepwise transition to post-quantum secure and hybrid algorithms without the risk of incompatibility problems.
doi:10.21105/joss.01606 fatcat:zbxrm345szfzrggdwj5gckk7ge

Reducing Unspecific Protein Adsorption in Microfluidic Papers Using Fiber-Attached Polymer Hydrogels

Alexander Ritter von Stockert, Anna Luongo, Markus Langhans, Thomas Brandstetter, Jürgen Rühe, Tobias Meckel, Markus Biesalski
2021 Sensors  
Microfluidic paper combines pump-free water transport at low cost with a high degree of sustainability, as well as good availability of the paper-forming cellulosic material, thus making it an attractive candidate for point-of-care (POC) analytics and diagnostics. Although a number of interesting demonstrators for such paper devices have been reported to date, a number of challenges still exist, which limit a successful transfer into marketable applications. A strong limitation in this respect
more » ... s the (unspecific) adsorption of protein analytes to the paper fibers during the lateral flow assay. This interaction may significantly reduce the amount of analyte that reaches the detection zone of the microfluidic paper-based analytical device (µPAD), thereby reducing its overall sensitivity. Here, we introduce a novel approach on reducing the nonspecific adsorption of proteins to lab-made paper sheets for the use in µPADs. To this, cotton linter fibers in lab-formed additive-free paper sheets are modified with a surrounding thin hydrogel layer generated from photo-crosslinked, benzophenone functionalized copolymers based on poly-(oligo-ethylene glycol methacrylate) (POEGMA) and poly-dimethyl acrylamide (PDMAA). This, as we show in tests similar to lateral flow assays, significantly reduces unspecific binding of model proteins. Furthermore, by evaporating the transport fluid during the microfluidic run at the end of the paper strip through local heating, model proteins can almost quantitatively be accumulated in that zone. The possibility of complete, almost quantitative protein transport in a µPAD opens up new opportunities to significantly improve the signal-to-noise (S/N) ratio of paper-based lateral flow assays.
doi:10.3390/s21196348 pmid:34640668 fatcat:otfksvreqfeyrctgnmvlpi5ksm

Frontmatter [chapter]

2021 Arbeitsrecht der Umstrukturierung  
Tobias Leder, LL.M. Duke Dr. Ralf Steffan Fachanwalt für Arbeitsrecht, Rechtsanwalt, München Köln Dr. Daniel Ludwig Dr.  ...  Susanna Stöckert Fachanwalt für Arbeitsrecht, Rechtsanwältin, München Hamburg Prof. Dr. Stefan Lunk Fachanwalt für Arbeitsrecht, Hamburg  ... 
doi:10.9785/9783504380328-fm fatcat:nkxry4amt5d2xevus4mn3b4uuu

Unprotected Left Main Percutaneous Coronary Intervention in Acute Coronary Syndromes with Extracorporeal Life Support Backup

Dawid L. Staudacher, Oliver Langner, Paul Biever, Christoph Benk, Manfred Zehender, Christoph Bode, Tobias Wengenmayer
2015 Scientifica  
Conflict of Interests Tobias Wengenmayer holds a research grant from Abbott Vascular. Christoph Benk holds shares in ResuSciTec Ltd. The other authors declare that they have no conflict of interests.  ...  Two commercially available ECLS systems (CADIO-HELP by MAQUET Medical and Stöckert Centrifugal Pump Console (SCPC) by Sorin Group) were employed in our patients.  ... 
doi:10.1155/2015/435878 pmid:25810950 pmcid:PMC4355596 fatcat:pew5dcw3szep5dic2mpjpinrwq

Page 315 of Dsh Abstracts Vol. 13, Issue 2 [page]

1973 Dsh Abstracts  
A. 1174 TOBIAS, J. V. 987 TOKUNAGA, O. 1250 TOLLOCZKO, R. 1106, 1107 TOMASI, T. B., JR. 1146 TOMITA, H. 1251 TOMITA, S. 1251 TONNDORF, J. 917 TOROK, N. 1374 TOUCHSTONE, R.  ...  I. 1256 VON BERNUTH, H. 1027 VON DER LIETH, L. 1339 VON LEDEN, H. 1549 VON STOCKERT, R. T. 1500 VOORT, L. V. 1690 WAAR, C. H. 1385 WAKAYAMA, T. 1377 WALTZMAN, S. 1085 WANAMAKER, H.  ... 

First successful treatment of COVID-19 induced refractory cardiogenic plus vasoplegic shock by combination of pVAD and ECMO - a case report

Xavier Bemtgen, Kirsten Krüger, Alexander Supady, Daniel Dürschmied, David Schibilsky, Fabian Bamberg, Christoph Bode, Tobias Wengenmayer, Dawid L Staudacher
2020 ASAIO journal (1992)  
XAVIER BEMTGEN,* † KIRSTEN KRÜGER,* † ALEXANDER SUPADY,* † DANIEL DUERSCHMIED,* † DAVID SCHIBILSKY, ‡ FABIAN BAMBERG, § CHRISTOPH BODE,* † TOBIAS WENGENMAYER,* † AND DAWID L.  ...  Extracorporeal Membrane Oxygenation For the profound vasoplegic shock, a venoarterial extracorporeal membrane oxygenation (ECMO) (Stöckert centrifugal pump console, SCPC; Sorin Group, Munich, Germany)  ... 
doi:10.1097/mat.0000000000001178 pmid:32304394 pmcid:PMC7217127 fatcat:jpw5tzbsfvajpn3kulqu4npbna

First successful treatment of COVID-19 induced refractory cardiogenic plus vasoplegic shock by combination of pVAD and ECMO – a case report

Xavier Bemtgen, Kirsten Krüger, Alexander Supady, Daniel Dürschmied, David Schibilsky, Fabian Bamberg, Christoph Bode, Tobias Wengenmayer, Dawid L. Staudacher
2020 ASAIO journal (1992)  
Extracorporeal membrane oxygenation (ECMO): For the profound vasoplegic shock, a venoarterial ECMO (Stöckert centrifugal pump console, SCPC®, Sorin Group, Munich, Germany) was added at day four using a  ... 
doi:10.1097/mat.0000000000001178 pmid:32472827 pmcid:PMC7217127 fatcat:e44akf5bhndpxodufz5stowvym

Robustness of magnons near the quantum critical point in the heavy-fermion superconductor CeCu2Si2

Zita Huesges, Karin Schmalzl, Christoph Geibel, Manuel Brando, Frank Steglich, Oliver Stockert
2018 Physical review B  
A corresponding image of the S-type in the superconducting state can be found in the publication by Stockert et al. 24 .  ...  We thank Silvia Seiro for her advice in the single crystal synthesis; Bernhard Keimer, Dmytro Inosov and Michael Loewenhaupt for productive discussions; and Tobias Weber for support with resolution calculations  ... 
doi:10.1103/physrevb.98.134425 fatcat:6kk6xvhnsbe2josw4k3pmyh3b4

Left Ventricular Wall Reconstruction with Autologous Vascularized Gastric Graft in a Porcine Pilot Model

Tobias Schilling, Tanja Meyer, Gudrun Brandes, Dagmar Hartung, Igor Tudorache, Ingo Nolte, Frank Wacker, Andres Hilfiker, Klaus Hoeffler, Axel Haverich, Serghei Cebotari
2022 European Surgical Research  
The cannulas for cardiopulmonary bypass (Stöckert S3; Sorin Group Germany GmbH, München, Germany) were placed into the carotid artery and via the inferior vena cava into the right atrium.  ...  Tobias Schilling, MD and Axel Haverich were responsible for the concept development and discussion of the experiments' findings.  ...  Additionally, Tobias executed the project man-agement, surgical procedures, investigation of the explants, and MRI-and angiography results, as well as the writing of this manuscript.  ... 
doi:10.1159/000522478 pmid:35134805 fatcat:fcp2kflbfffajm6b2dlll27lg4

Thrombotic circuit complications during venovenous extracorporeal membrane oxygenation in COVID-19

Xavier Bemtgen, Viviane Zotzmann, Christoph Benk, Jonathan Rilinger, Katrin Steiner, Alexander Asmussen, Christoph Bode, Tobias Wengenmayer, Sven Maier, Dawid L. Staudacher
2020 Journal of Thrombosis and Thrombolysis  
ECMO circuit Two different pump types were used for ECMO: Stöckert Centrifugal Pump Console (SCPC) (LivaNova, Munich, Germany) and the Cardiohelp-System (Maquet, Rastatt, Germany).  ... 
doi:10.1007/s11239-020-02217-1 pmid:32653986 fatcat:qs5r462b3rejbdldgedtudunpi

Mitteilungen / Veranstaltungen

Die Redaktion, MonatsAnzeiger / Germanisches Nationalmuseum Nürnberg
Tobias Spflnger: Religion, Magie und Aberglaube in vor-und frühge- schichtlicher Ze1t 15.03.1998, 14 Uhr Willi Kromarek: Führung Sammlung Wissenschaftliche Instrumente 18.03 .1998, 19 Uhr Dr.  ...  Uenze: Schmuck der Kelten Festvortrag zur Eröffnung der gleichnamigen Sonderausstellung 09 .03 .1998 Kurt Wälzlein: ReiseimpressiOnen aus Norwegen 11.03.1998 Edgar Stöckert: Blütenparadies  ... 
doi:10.11588/ma.1998.204.27704 fatcat:mm3ajnyzsbaxncgj5wrkb4rnlu

The network approach to posttraumatic stress disorder: a systematic review

Marianne Skogbrott Birkeland, Talya Greene, Tobias Raphael Spiller
2020 European Journal of Psychotraumatology  
., 2017; Sullivan, Smith, Lewis, & Jones, 2018; von Stockert, Fried, Armour, & Pietrzak, 2018) .  ...  ORCID Marianne Skogbrott Birkeland Talya Greene Tobias Raphael Spiller Figure 1 . 1 PRISMA  ... 
doi:10.1080/20008198.2019.1700614 pmid:32002135 pmcid:PMC6968637 fatcat:p5tzgwb7vnbqln7wwfv33ouu2i

Hydroxyethylstarch impairs renal function and induces interstitial proliferation, macrophage infiltration and tubular damage in an isolated renal perfusion model

Lars Hüter, Tim-Philipp Simon, Lenard Weinmann, Tobias Schuerholz, Konrad Reinhart, Gunter Wolf, Kerstin Amann, Gernot Marx
2009 Critical Care  
The IOPS was designed using commercially available clinicalgrade cardiopulmonary technology consisting of a centrifugal blood pump (0-40-00; Stöckert, Munich, Germany), a heat exchanger (ST II; Stöckert  ... 
doi:10.1186/cc7726 pmid:19239718 pmcid:PMC2688141 fatcat:3w2tpqxwd5fazgrwenv5vtwtfm

Rezensionen und Kurzanzeigen

Herbert Bannert, Kurt Smolak
2018 Wiener Studien : Zeitschrift fyr klassische Philologie und Patristik  
ISBN 978-0-19-872878-8 4 Walter Stockert: Christopher C o l l a r d -James M o r w o o d, Euripides. Iphigenia at Aulis. I. Introduction, Text and Translation. II. Commentary and Indexes.  ...  ISBN 978-3-447-10773-0; ISSN 0343-1258 46 Sonja Schreiner: Tobias L e u k e r -Christian P i e t s c h (Hg.), Klassik als Norm -Norm als Klassik.  ...  H o l lm a n n , Anm. 90; dazu Stockert [2012], 125ff.); auch Cist. 87f. gibt es eine gleichwertige Textvariante.  ... 
doi:10.1553/wst131_rezs1 fatcat:uvsgmytyqjetnpys2zzrh3h5ii
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