@misc{OPUS4-3913,
  title     = {Brodelnder Iran},
  organization    = {WeltTrends e.V.},
  isbn      = {978-3-941880-06-1},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-40797},
  year      = {2010},
  abstract  = {Die letzten Wahlen im Iran waren die Z{\"u}ndschnur am Pulverfass: Der angestaute Protest entlud sich. Wenig organisiert, jedoch mit Kreativit{\"a}t und erstaunlicher Dauer der Opposition. Zugleich gelingt es dem Regime weiterhin, mit H{\"a}rte gegen oppositionelle Kr{\"a}fte vorzugehen. So brodelt es bedrohlich im Iran. Afghanistan bleibt hierzulande auf der Tagesordnung. Obamas "neue Strategie" erinnert an Vietnam. Mit ihr wird sich der Druck auf Berlin verst{\"a}rken, die Zahl der Soldaten am Hindukusch zu erh{\"o}hen. Dies erfordert weiterhin eine Debatte um Alternativen.},
  language  = {de}
}
@misc{OPUS4-3915,
  title     = {Blattgold : Lieb* Les*, * du das gerade liest},
  isbn      = {978-3-941880-06-1},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-40816},
  year      = {2010},
  abstract  = {Die faulige Luft aus dem tiefsten Mittelalter, denken sich zivilisierte Mitteleuropabewohnende, und sind erstaunt zu erfahren, dass es im Iran heute legal ist, sich von einer Frau in einen Mann umoperieren zu lassen, oder umgekehrt. Noch besser: Die Geschlechtsumwandlung wird von der Krankenkasse bezahlt.},
  language  = {de}
}
@misc{Beta2010,
  author    = {Beta, Carsten},
  title     = {Bistability in the actin cortex},
  series = {Postprints der Universit{\"a}t Potsdam Mathematisch-Naturwissenschaftliche Reihe},
  volume    = {3},
  journal   = {Postprints der Universit{\"a}t Potsdam Mathematisch-Naturwissenschaftliche Reihe},
  number    = {12},
  doi       = {10.25932/publishup-42938},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-429385},
  pages     = {9},
  year      = {2010},
  abstract  = {Multi-color fluorescence imaging experiments of wave forming Dictyostelium cells have revealed that actin waves separate two domains of the cell cortex that differ in their actin structure and phosphoinositide composition. We propose a bistable model of actin dynamics to account for these experimental observation. The model is based on the simplifying assumption that the actin cytoskeleton is composed of two distinct network types, a dendritic and a bundled network. The two structurally different states that were observed in experiments correspond to the stable fixed points in the bistable regime of this model. Each fixed point is dominated by one of the two network types. The experimentally observed actin waves can be considered as trigger waves that propagate transitions between the two stable fixed points.},
  language  = {en}
}
@misc{RepsilberKernTelaaretal.2010,
  author    = {Repsilber, Dirk and Kern, Sabine and Telaar, Anna and Walzl, Gerhard and Black, Gillian F. and Selbig, Joachim and Parida, Shreemanta K. and Kaufmann, Stefan H. E. and Jacobsen, Marc},
  title     = {Biomarker discovery in heterogeneous tissue samples},
  series = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe},
  number    = {854},
  issn      = {1866-8372},
  doi       = {10.25932/publishup-42934},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-429343},
  pages     = {17},
  year      = {2010},
  abstract  = {Background: For heterogeneous tissues, such as blood, measurements of gene expression are confounded by relative proportions of cell types involved. Conclusions have to rely on estimation of gene expression signals for homogeneous cell populations, e.g. by applying micro-dissection, fluorescence activated cell sorting, or in-silico deconfounding. We studied feasibility and validity of a non-negative matrix decomposition algorithm using experimental gene expression data for blood and sorted cells from the same donor samples. Our objective was to optimize the algorithm regarding detection of differentially expressed genes and to enable its use for classification in the difficult scenario of reversely regulated genes. This would be of importance for the identification of candidate biomarkers in heterogeneous tissues. Results: Experimental data and simulation studies involving noise parameters estimated from these data revealed that for valid detection of differential gene expression, quantile normalization and use of non-log data are optimal. We demonstrate the feasibility of predicting proportions of constituting cell types from gene expression data of single samples, as a prerequisite for a deconfounding-based classification approach. Classification cross-validation errors with and without using deconfounding results are reported as well as sample-size dependencies. Implementation of the algorithm, simulation and analysis scripts are available. Conclusions: The deconfounding algorithm without decorrelation using quantile normalization on non-log data is proposed for biomarkers that are difficult to detect, and for cases where confounding by varying proportions of cell types is the suspected reason. In this case, a deconfounding ranking approach can be used as a powerful alternative to, or complement of, other statistical learning approaches to define candidate biomarkers for molecular diagnosis and prediction in biomedicine, in realistically noisy conditions and with moderate sample sizes.},
  language  = {en}
}
@misc{Hopf2010,
  author    = {Hopf, Diether},
  title     = {Anreize zu erfolgreichem Lehren in der Schule : Forschungsstand und methodologische {\"U}berlegungen ; Langfassung},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-53829},
  year      = {2010},
  abstract  = {Der Aufsatz befasst sich mit der Frage, was man aus der internationalen Forschung dar{\"u}ber weiß, welcher Unterricht und welches Lehrerverhalten Auswirkungen auf die Lernergebnisse der Sch{\"u}ler/innen hat und welche M{\"o}glichkeiten es gibt, solches Verhalten zu verst{\"a}rken. Ber{\"u}cksichtigt werden nur Forschungsergebnisse, die hohen methodischen Anforderungen gen{\"u}gen, kausale Schlussfolgerungen erlauben und generalisierbar sind. Konsequenzen f{\"u}r die Lehrerbildung werden diskutiert.},
  language  = {de}
}
@misc{Martin2010,
  author    = {Martin, Paul},
  title     = {Afrika im 21. Jahrhundert : eine zu schreibende Erfolgsgeschichte},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-46446},
  year      = {2010},
  abstract  = {Afrika hat seinen berechtigten Platz auf der Weltb{\"u}hne noch nicht gefunden. Ein wichtiger Grund daf{\"u}r besteht darin, dass afrikanische Regierungen - im Gegensatz zu denen Chinas, Indiens, Brasiliens oder Indonesiens - nicht jene Maßnahmen ergriffen haben, die f{\"u}r das Entstehen eines Mittelstandes aus dem Gemenge von Millionen Armen wichtig sind.},
  language  = {de}
}
@misc{ShirzadianKhorramabadJingEvertsetal.2010,
  author    = {Shirzadian-Khorramabad, Reza and Jing, Hai-Chun and Everts, Gerja E. and Schippers, Jos H. M. and Hille, Jacques and Dijkwel, Paul P.},
  title     = {A mutation in the cytosolic O-acetylserine (thiol) lyase induces a genome-dependent early leaf death phenotype in Arabidopsis},
  series = {Postprints der Universit{\"a}t Potsdam : Mathematisch Naturwissenschaftliche Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Mathematisch Naturwissenschaftliche Reihe},
  number    = {833},
  issn      = {1866-8372},
  doi       = {10.25932/publishup-42757},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-427574},
  pages     = {14},
  year      = {2010},
  abstract  = {Background: Cysteine is a component in organic compounds including glutathione that have been implicated in the adaptation of plants to stresses. O-acetylserine (thiol) lyase (OAS-TL) catalyses the final step of cysteine biosynthesis. OAS-TL enzyme isoforms are localised in the cytoplasm, the plastids and mitochondria but the contribution of individual OAS-TL isoforms to plant sulphur metabolism has not yet been fully clarified. Results: The seedling lethal phenotype of the Arabidopsis onset of leaf death3-1 (old3-1) mutant is due to a point mutation in the OAS-A1 gene, encoding the cytosolic OAS-TL. The mutation causes a single amino acid substitution from Gly(162) to Glu(162), abolishing old3-1 OAS-TL activity in vitro. The old3-1 mutation segregates as a monogenic semidominant trait when backcrossed to its wild type accession Landsberg erecta (Ler-0) and the Di-2 accession. Consistent with its semi-dominant behaviour, wild type Ler-0 plants transformed with the mutated old3-1 gene, displayed the early leaf death phenotype. However, the old3-1 mutation segregates in an 11: 4: 1 (wild type: semi-dominant: mutant) ratio when backcrossed to the Colombia-0 and Wassilewskija accessions. Thus, the early leaf death phenotype depends on two semi-dominant loci. The second locus that determines the old3-1 early leaf death phenotype is referred to as odd-ler (for old3 determinant in the Ler accession) and is located on chromosome 3. The early leaf death phenotype is temperature dependent and is associated with increased expression of defence-response and oxidative-stress marker genes. Independent of the presence of the odd-ler gene, OAS-A1 is involved in maintaining sulphur and thiol levels and is required for resistance against cadmium stress. Conclusions: The cytosolic OAS-TL is involved in maintaining organic sulphur levels. The old3-1 mutation causes genome-dependent and independent phenotypes and uncovers a novel function for the mutated OAS-TL in cell death regulation.},
  language  = {en}
}
@misc{DortayMuellerRoeber2010,
  author    = {Dortay, Hakan and M{\"u}ller-R{\"o}ber, Bernd},
  title     = {A highly efficient pipeline for protein expression in Leishmania tarentolae sing infrared fluorescence protein as marker},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-44773},
  year      = {2010},
  abstract  = {Background: Leishmania tarentolae, a unicellular eukaryotic protozoan, has been established as a novel host for recombinant protein production in recent years. Current protocols for protein expression in Leishmania are, however, time consuming and require extensive lab work in order to identify well-expressing cell lines. Here we established an alternative protein expression work-flow that employs recently engineered infrared fluorescence protein (IFP) as a suitable and easy-to-handle reporter protein for recombinant protein expression in Leishmania. As model proteins we tested three proteins from the plant Arabidopsis thaliana, including a NAC and a type-B ARR transcription factor. Results: IFP and IFP fusion proteins were expressed in Leishmania and rapidly detected in cells by deconvolution microscopy and in culture by infrared imaging of 96-well microtiter plates using small cell culture volumes (2 μL - 100 μL). Motility, shape and growth of Leishmania cells were not impaired by intracellular accumulation of IFP. In-cell detection of IFP and IFP fusion proteins was straightforward already at the beginning of the expression pipeline and thus allowed early pre-selection of well-expressing Leishmania clones. Furthermore, IFP fusion proteins retained infrared fluorescence after electrophoresis in denaturing SDS-polyacrylamide gels, allowing direct in-gel detection without the need to disassemble cast protein gels. Thus, parameters for scaling up protein production and streamlining purification routes can be easily optimized when employing IFP as reporter. Conclusions: Using IFP as biosensor we devised a protocol for rapid and convenient protein expression in Leishmania tarentolae. Our expression pipeline is superior to previously established methods in that it significantly reduces the hands-on-time and work load required for identifying well-expressing clones, refining protein production parameters and establishing purification protocols. The facile in-cell and in-gel detection tools built on IFP make Leishmania amenable for high-throughput expression of proteins from plant and animal sources.},
  language  = {en}
}
@misc{Wels2010,
  author    = {Wels, Volkhard},
  title     = {'Gelegenheitsdichtung'},
  series = {Postprints der Universit{\"a}t Potsdam : Philosophische Reihe},
  journal   = {Postprints der Universit{\"a}t Potsdam : Philosophische Reihe},
  number    = {99},
  issn      = {1866-8380},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-90608},
  pages     = {23},
  year      = {2010},
  abstract  = {Der Beitrag dient als Einf{\"u}hrung in einen Sammelband zu "Theorie und Praxis der Kasualdichtung in der Fr{\"u}hen Neuzeit". Er setzt sich kritisch mit dem Begriff der "Gelegenheitsdichtung" auseinander.},
  language  = {de}
}