Institution
University of Konstanz
Education•Konstanz, Baden-Württemberg, Germany•
About: University of Konstanz is a education organization based out in Konstanz, Baden-Württemberg, Germany. It is known for research contribution in the topics: Population & Membrane. The organization has 12115 authors who have published 27401 publications receiving 951162 citations. The organization is also known as: University of Constance & Universität Konstanz.
Topics: Population, Membrane, Politics, Laser, Gene
Papers published on a yearly basis
Papers
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TL;DR: New reactions enabled by a single class of ligands, phosphine-sulfonate (ortho-phosphinobenzenesulfonates), using their palladium complexes, are summarized, which have developed four unusual reactions, and three of these have produced novel types of polymers.
Abstract: Ligands, Lewis bases that coordinate to the metal center in a complex, can completely change the catalytic behavior of the metal center. In this Account, we summarize new reactions enabled by a single class of ligands, phosphine–sulfonates (ortho-phosphinobenzenesulfonates). Using their palladium complexes, we have developed four unusual reactions, and three of these have produced novel types of polymers.In one case, we have produced linear high-molecular weight polyethylene, a type of polymer that group 10 metal catalysts do not typically produce. Secondly, complexes using these ligands catalyzed the formation of linear poly(ethylene-co-polar vinyl monomers). Before the use of phosphine–sulfonate catalysts, researchers could only produce ethylene/polar monomer copolymers that have different branched structures rather than linear ones, depending on whether the polymers were produced by a radical polymerization or a group 10 metal catalyzed coordination polymerization. Thirdly, these phosphine–sulfonate ca...
406 citations
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23 Oct 2011TL;DR: The library addresses two common scenarios in collaborative filtering: rating prediction and item prediction from positive-only implicit feedback, and contains methods for real-time updates and loading/storing of already trained recommender models.
Abstract: MyMediaLite is a fast and scalable, multi-purpose library of recommender system algorithms, aimed both at recommender system researchers and practitioners. It addresses two common scenarios in collaborative filtering: rating prediction (e.g. on a scale of 1 to 5 stars) and item prediction from positive-only implicit feedback (e.g. from clicks or purchase actions). The library offers state-of-the-art algorithms for those two tasks. Programs that expose most of the library's functionality, plus a GUI demo, are included in the package. Efficient data structures and a common API are used by the implemented algorithms, and may be used to implement further algorithms. The API also contains methods for real-time updates and loading/storing of already trained recommender models.MyMediaLite is free/open source software, distributed under the terms of the GNU General Public License (GPL). Its methods have been used in four different industrial field trials of the MyMedia project, including one trial involving over 50,000 households.
403 citations
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TL;DR: Three case studies were selected to illustrate the basic situation and the specific characteristics of oxic-anoxic interfaces: sediments, the rhizosphere of aquatic plants, and the intestinal tract of insects.
Abstract: Molecular oxygen is one of the most important reactants in biogeochemical cycles. Due to its low solubility in water, the consumption of oxygen leads to the development of oxic–anoxic interfaces, which separate aerobic from anaerobic processes in virtually all environments, ranging in scale from oceanic sediments to the fecal pellets of a small soil invertebrate. Three case studies were selected to illustrate the basic situation and the specific characteristics of oxic–anoxic interfaces: sediments, the rhizosphere of aquatic plants, and the intestinal tract of insects. Each system is governed by the same general principles, but striking differences arise from, e.g., the nature of the major microbial activities and the mechanisms controlling metabolite fluxes. Also scale and dimensional differences as well as the consequences of temporal fluctuations are of fundamental importance. Recent developments in microbial ecology, which often combine traditional and modern approaches, have significantly furthered our understanding of the specific microniches and the metabolic and behavioral adaptations of microorganisms to life at the oxic–anoxic interface. New concepts help to define the targets of future studies: the spatial organization of microbial populations, their microenvironments and in situ activities, and the functional interactions within structured microbial communities.
403 citations
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TL;DR: In this paper, a simple repeated principal-agent model with discounting was examined and the first-best (constant consumption) contract tends to the first best contract as the discount factor tends to one and the time horizon extends to infinity.
403 citations
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TL;DR: Nitric oxide generation in response to a cytokine induced NO‐synthase or by NO donors stimulates the expression of the tumor suppressor gene, p53, in RAW 264.7 macrophages or pancreatic RINm5F cells prior to apoptosis.
403 citations
Authors
Showing all 12272 results
Name | H-index | Papers | Citations |
---|---|---|---|
Robert E. W. Hancock | 152 | 775 | 88481 |
Lloyd J. Old | 152 | 775 | 101377 |
Andrew White | 149 | 1494 | 113874 |
Stefanie Dimmeler | 147 | 574 | 81658 |
Rudolf Amann | 143 | 459 | 85525 |
Niels Birbaumer | 142 | 835 | 77853 |
Thomas P. Russell | 141 | 1012 | 80055 |
Emmanuelle Perez | 138 | 1550 | 99016 |
Shlomo Havlin | 131 | 1013 | 83347 |
Bruno S. Frey | 119 | 900 | 65368 |
Roald Hoffmann | 116 | 870 | 59470 |
Michael G. Fehlings | 116 | 1189 | 57003 |
Yves Van de Peer | 115 | 494 | 61479 |
Axel Meyer | 112 | 511 | 51195 |
Manuela Campanelli | 111 | 675 | 48563 |