Revenue autonomy preference in German state parliaments

Fiscal federalism in Germany is characterized by lacking sub-national tax autonomy and intensive fiscal equalization. Due to a sunset clause, the current equalization system has to be renegotiated by the year 2019. Against this backdrop, this contribution studies the reform preferences of members of state parliaments. The study makes use of a self-conducted survey among the members of all 16 German state parliaments. It tests to which extent the preferences of these veto players for tax autonomy and fiscal equalization are driven by states’ self-interest, party ideology and individual characteristics. The results are helpful to understand the political-economic constraints of federal reforms. They indicate that besides the individual ideological position higher state wealth and lower debt levels are linked to larger reform support. Therefore, a promising new reform would have to address budgetary legacies like high pre-existing debt

Bioassays to Monitor Taspase1 Function for the Identification of Pharmacogenetic Inhibitors

Background: Threonine Aspartase 1 (Taspase1) mediates cleavage of the mixed lineage leukemia (MLL) protein and leukemia provoking MLL-fusions. In contrast to other proteases, the understanding of Taspase1's (patho)biological relevance and function is limited, since neither small molecule inhibitors nor cell based functional assays for Taspase1 are currently available. Methodology/Findings: Efficient cell-based assays to probe Taspase1 function in vivo are presented here. These are composed of glutathione S-transferase, autofluorescent protein variants, Taspase1 cleavage sites and rational combinations of nuclear import and export signals. The biosensors localize predominantly to the cytoplasm, whereas expression of biologically active Taspase1 but not of inactive Taspase1 mutants or of the protease Caspase3 triggers their proteolytic cleavage and nuclear accumulation. Compared to in vitro assays using recombinant components the in vivo assay was highly efficient. Employing an optimized nuclear translocation algorithm, the triple-color assay could be adapted to a high-throughput microscopy platform (Z'factor = 0.63). Automated high-content data analysis was used to screen a focused compound library, selected by an in silico pharmacophor screening approach, as well as a collection of fungal extracts. Screening identified two compounds, N-[2-[(4-amino-6-oxo-3H-pyrimidin-2-yl)sulfanyl]ethyl]benzenesulfonamideand 2-benzyltriazole-4,5-dicarboxylic acid, which partially inhibited Taspase1 cleavage in living cells. Additionally, the assay was exploited to probe endogenous Taspase1 in solid tumor cell models and to identify an improved consensus sequence for efficient Taspase1 cleavage. This allowed the in silico identification of novel putative Taspase1 targets. Those include the FERM Domain-Containing Protein 4B, the Tyrosine-Protein Phosphatase Zeta, and DNA Polymerase Zeta. Cleavage site recognition and proteolytic processing of these substrates were verified in the context of the biosensor. Conclusions: The assay not only allows to genetically probe Taspase1 structure function in vivo, but is also applicable for high-content screening to identify Taspase1 inhibitors. Such tools will provide novel insights into Taspase1's function and its potential therapeutic relevance

Wirksamkeit des Englischunterrichts

Mit Blick auf die Wirksamkeit des Englischunterrichts werden in diesem Kapitel folgende Aspekte und Zusammenhänge thematisiert: Unterrichtspraxis, Lehrpersonmerkmale und Unterrichtswirksamkeit, die Unterrichtsqualität aus Schülersicht, die Rolle von Schulklassenunterschieden, Unterrichtsqualität und Englischleistung, Bildungsgangprofile der Unterrichtsqualität, Unterrichtsqualität und Lerninteresse, Klassengröße und Heterogenität der Vorkenntnisse. (DIPF/Mar.