Institution
University of Potsdam
Education•Potsdam, Germany•
About: University of Potsdam is a education organization based out in Potsdam, Germany. It is known for research contribution in the topics: Population & Computer science. The organization has 9629 authors who have published 26740 publications receiving 759745 citations. The organization is also known as: Universität Potsdam.
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TL;DR: This work shows that total microbial cell abundance in subseafloor sediment varies between sites by ca.
Abstract: The global geographic distribution of subseafloor sedimentary microbes and the cause(s) of that distribution are largely unexplored. Here, we show that total microbial cell abundance in subseafloor sediment varies between sites by ca. five orders of magnitude. This variation is strongly correlated with mean sedimentation rate and distance from land. Based on these correlations, we estimate global subseafloor sedimentary microbial abundance to be 2.9⋅1029 cells [corresponding to 4.1 petagram (Pg) C and ∼0.6% of Earth’s total living biomass]. This estimate of subseafloor sedimentary microbial abundance is roughly equal to previous estimates of total microbial abundance in seawater and total microbial abundance in soil. It is much lower than previous estimates of subseafloor sedimentary microbial abundance. In consequence, we estimate Earth’s total number of microbes and total living biomass to be, respectively, 50–78% and 10–45% lower than previous estimates.
791 citations
TL;DR: In this paper, a new reconstruction of Alpine Tethys combines plate-kinematic modeling with a wealth of geological data and seismic tomography to shed light on its evolution, from sea-floor spreading through subduction to collision in the Alps.
787 citations
TL;DR: In this article, the particular properties of soluble derivatives of polyfluorene homopolymers with respect to emission properties, control of color stability and efficiency in electroluminescence, alignment in thin layers and polarized emission are discussed.
Abstract: Since the first report on blue electroluminescence from a soluble poly(9,9-di-alkylfluorene), fluorene-based homo- and copolymers have evolved as a major class of polymeric emitters for highly efficient organic light-emitting diodes. This Review is concerned with the particular properties of soluble derivatives of polyfluorene homopolymers with respect to emission properties, control of color stability and efficiency in electroluminescence, alignment in thin layers and polarized emission. A major point of discussion is the origin of unwanted emission contributions in the photoluminescence and electroluminescence spectra of solid layers as well as concepts to avoid these contributions in order to ensure stable device performance. Further, the alignment of polyfluorenes and their use in polarized light-emitting diodes is addressed.
787 citations
University of Kent1, University of Potsdam2, University of Victoria3, Carnegie Mellon University4, Catholic University of Leuven5, Polytechnic University of Milan6, Hasso Plattner Institute7, University of Washington8, West Virginia University9, University of Vienna10, University of Paderborn11, University of Kassel12, Vanderbilt University13, George Mason University14, CA Technologies15, University of Trento16, Ludwig Maximilian University of Munich17, Bell Labs18
TL;DR: In this paper, the authors present the state-of-the-art and identify research challenges when developing, deploying and managing self-adaptive software systems, focusing on four essential topics of selfadaptation: design space for selfadaptive solutions, software engineering processes, from centralized to decentralized control, and practical run-time verification & validation.
Abstract: The goal of this roadmap paper is to summarize the state-of-the-art and identify research challenges when developing, deploying and managing self-adaptive software systems. Instead of dealing with a wide range of topics associated with the field, we focus on four essential topics of self-adaptation: design space for self-adaptive solutions, software engineering processes for self-adaptive systems, from centralized to decentralized control, and practical run-time verification & validation for self-adaptive systems. For each topic, we present an overview, suggest future directions, and focus on selected challenges. This paper complements and extends a previous roadmap on software engineering for self-adaptive systems published in 2009 covering a different set of topics, and reflecting in part on the previous paper. This roadmap is one of the many results of the Dagstuhl Seminar 10431 on Software Engineering for Self-Adaptive Systems, which took place in October 2010.
783 citations
Purdue University1, Kanazawa University2, Graduate University for Advanced Studies3, National Institutes of Natural Sciences, Japan4, University of California, Davis5, Monash University6, Pennsylvania State University7, University at Buffalo8, New York Botanical Garden9, University of Regina10, University of Arizona11, University of Georgia12, University of Potsdam13, Salk Institute for Biological Studies14, Charles University in Prague15, College of William & Mary16, University of California, San Diego17, École normale supérieure de Lyon18, Carnegie Institution for Science19, Hokkaido University20, University of Jena21, Martin Luther University of Halle-Wittenberg22, University of Copenhagen23, University of Tokyo24, Nagoya University25, Free University of Berlin26, University of Tsukuba27, University of Rostock28, University of Tübingen29, Nara Institute of Science and Technology30, Mayo Clinic31, University of California, Berkeley32, Rutgers University33, National Institute of Genetics34, Max Planck Society35, University of Tennessee Health Science Center36, University of Washington37, Dalhousie University38, University of Oxford39, University of Freiburg40, University of Los Andes41, University of Rhode Island42, Joint BioEnergy Institute43, Ruhr University Bochum44, Texas A&M University45, Osaka University46, Cornell University47, Cold Spring Harbor Laboratory48, University of Burgundy49, Utah State University50, United States Department of Energy51
TL;DR: The genome sequence of the lycophyte Selaginella moellendorffii (Selaginella), the first nonseed vascular plant genome reported, is reported, finding that the transition from a gametophytes- to a sporophyte-dominated life cycle required far fewer new genes than the Transition from a non Seed vascular to a flowering plant.
Abstract: Vascular plants appeared ~410 million years ago, then diverged into several lineages of which only two survive: the euphyllophytes (ferns and seed plants) and the lycophytes. We report here the genome sequence of the lycophyte Selaginella moellendorffii (Selaginella), the first nonseed vascular plant genome reported. By comparing gene content in evolutionarily diverse taxa, we found that the transition from a gametophyte- to a sporophyte-dominated life cycle required far fewer new genes than the transition from a nonseed vascular to a flowering plant, whereas secondary metabolic genes expanded extensively and in parallel in the lycophyte and angiosperm lineages. Selaginella differs in posttranscriptional gene regulation, including small RNA regulation of repetitive elements, an absence of the trans-acting small interfering RNA pathway, and extensive RNA editing of organellar genes.
750 citations
Authors
Showing all 9969 results
| Name | H-index | Papers | Citations |
|---|---|---|---|
| Cyrus Cooper | 204 | 1869 | 206782 |
| Markus Antonietti | 176 | 1068 | 127235 |
| Marc Weber | 167 | 2716 | 153502 |
| Peter Capak | 147 | 679 | 70483 |
| Heiner Boeing | 140 | 1024 | 92580 |
| Alisdair R. Fernie | 133 | 1010 | 64026 |
| Klaus-Robert Müller | 129 | 764 | 79391 |
| Claudia Felser | 113 | 1198 | 58589 |
| Guochun Zhao | 113 | 406 | 40886 |
| Matthias Steinmetz | 112 | 461 | 67802 |
| Jürgen Kurths | 105 | 1038 | 62179 |
| Peter Schmidt | 105 | 638 | 61822 |
| Erwin P. Bottinger | 102 | 342 | 42089 |
| Knud Jahnke | 94 | 352 | 31542 |
| Gerd Gigerenzer | 94 | 533 | 52356 |