@article{OgunkolaGuiraudieCaprazFeronetal.2023, author = {Ogunkola, Moses Olalekan and Guiraudie-Capraz, Gaelle and F{\´e}ron, Fran{\c{c}}ois and Leimk{\"u}hler, Silke}, title = {The Human Mercaptopyruvate Sulfurtransferase TUM1 Is Involved in Moco Biosynthesis, Cytosolic tRNA Thiolation and Cellular Bioenergetics in Human Embryonic Kidney Cells}, series = {Biomolecules}, volume = {13}, journal = {Biomolecules}, edition = {1}, publisher = {MDPI}, address = {Basel, Schweiz}, issn = {2218-273X}, doi = {10.3390/biom13010144}, pages = {1 -- 23}, year = {2023}, abstract = {Sulfur is an important element that is incorporated into many biomolecules in humans. The incorporation and transfer of sulfur into biomolecules is, however, facilitated by a series of different sulfurtransferases. Among these sulfurtransferases is the human mercaptopyruvate sulfurtransferase (MPST) also designated as tRNA thiouridine modification protein (TUM1). The role of the human TUM1 protein has been suggested in a wide range of physiological processes in the cell among which are but not limited to involvement in Molybdenum cofactor (Moco) biosynthesis, cytosolic tRNA thiolation and generation of H2S as signaling molecule both in mitochondria and the cytosol. Previous interaction studies showed that TUM1 interacts with the L-cysteine desulfurase NFS1 and the Molybdenum cofactor biosynthesis protein 3 (MOCS3). Here, we show the roles of TUM1 in human cells using CRISPR/Cas9 genetically modified Human Embryonic Kidney cells. Here, we show that TUM1 is involved in the sulfur transfer for Molybdenum cofactor synthesis and tRNA thiomodification by spectrophotometric measurement of the activity of sulfite oxidase and liquid chromatography quantification of the level of sulfur-modified tRNA. Further, we show that TUM1 has a role in hydrogen sulfide production and cellular bioenergetics.}, language = {en} } @article{MarggrafLindeckeVoigtetal.2023, author = {Marggraf, Lara Christin and Lindecke, Oliver and Voigt, Christian C. and Pētersons, Gunārs and Voigt-Heucke, Silke Luise}, title = {Nathusius' bats, Pipistrellus nathusii, bypass mating opportunities of their own species, but respond to foraging heterospecifics on migratory transit flights}, series = {Frontiers in Ecology and Evolution}, journal = {Frontiers in Ecology and Evolution}, publisher = {Frontiers}, address = {Lausanne, Schweiz}, issn = {2296-701X}, doi = {10.3389/fevo.2022.908560}, pages = {1 -- 10}, year = {2023}, abstract = {In late summer, migratory bats of the temperate zone face the challenge of accomplishing two energy-demanding tasks almost at the same time: migration and mating. Both require information and involve search efforts, such as localizing prey or finding potential mates. In non-migrating bat species, playback studies showed that listening to vocalizations of other bats, both con-and heterospecifics, may help a recipient bat to find foraging patches and mating sites. However, we are still unaware of the degree to which migrating bats depend on con-or heterospecific vocalizations for identifying potential feeding or mating opportunities during nightly transit flights. Here, we investigated the vocal responses of Nathusius' pipistrelle bats, Pipistrellus nathusii, to simulated feeding and courtship aggregations at a coastal migration corridor. We presented migrating bats either feeding buzzes or courtship calls of their own or a heterospecific migratory species, the common noctule, Nyctalus noctula. We expected that during migratory transit flights, simulated feeding opportunities would be particularly attractive to bats, as well as simulated mating opportunities which may indicate suitable roosts for a stopover. However, we found that when compared to the natural silence of both pre-and post-playback phases, bats called indifferently during the playback of conspecific feeding sounds, whereas P. nathusii echolocation call activity increased during simulated feeding of N. noctula. In contrast, the call activity of P. nathusii decreased during the playback of conspecific courtship calls, while no response could be detected when heterospecific call types were broadcasted. Our results suggest that while on migratory transits, P. nathusii circumnavigate conspecific mating aggregations, possibly to save time or to reduce the risks associated with social interactions where aggression due to territoriality might be expected. This avoidance behavior could be a result of optimization strategies by P. nathusii when performing long-distance migratory flights, and it could also explain the lack of a response to simulated conspecific feeding. However, the observed increase of activity in response to simulated feeding of N. noctula, suggests that P. nathusii individuals may be eavesdropping on other aerial hawking insectivorous species during migration, especially if these occupy a slightly different foraging niche.}, language = {en} } @article{Kaak2023, author = {Kaak, Heinrich}, title = {Chronologie der Englandreise}, series = {Ich gestehe, daß ich mich sehr bestimmt auf diese Reise freue … : Die Englandbriefe des m{\"a}rkischen Ehepaares von Itzenplitz 1792/1793}, journal = {Ich gestehe, daß ich mich sehr bestimmt auf diese Reise freue … : Die Englandbriefe des m{\"a}rkischen Ehepaares von Itzenplitz 1792/1793}, publisher = {Lukas}, address = {Berlin}, isbn = {978-3-86732-359-8}, pages = {45 -- 53}, year = {2023}, language = {de} } @article{Kaak2023, author = {Kaak, Heinrich}, title = {Einleitender Kommentar}, series = {Ich gestehe, daß ich mich sehr bestimmt auf diese Reise freue … : Die Englandbriefe des m{\"a}rkischen Ehepaares von Itzenplitz 1792/1793}, journal = {Ich gestehe, daß ich mich sehr bestimmt auf diese Reise freue … : Die Englandbriefe des m{\"a}rkischen Ehepaares von Itzenplitz 1792/1793}, publisher = {Lukas}, address = {Berlin}, isbn = {978-3-86732-359-8}, pages = {11 -- 44}, year = {2023}, language = {de} } @article{BrinkmannKoellnerMerketal.2023, author = {Brinkmann, Pia and K{\"o}llner, Nicole and Merk, Sven and Beitz, Toralf and Altenberger, Uwe and L{\"o}hmannsr{\"o}ben, Hans-Gerd}, title = {Comparison of handheld and echelle spectrometer to assess copper in ores by means of laser-induced breakdown spectroscopy (LIBS)}, series = {Minerals}, volume = {13}, journal = {Minerals}, number = {1}, publisher = {MDPI}, address = {Basel}, issn = {2075-163X}, doi = {10.3390/min13010113}, pages = {19}, year = {2023}, abstract = {Its properties make copper one of the world's most important functional metals. Numerous megatrends are increasing the demand for copper. This requires the prospection and exploration of new deposits, as well as the monitoring of copper quality in the various production steps. A promising technique to perform these tasks is Laser Induced Breakdown Spectroscopy (LIBS). Its unique feature, among others, is the ability to measure on site without sample collection and preparation. In this work, copper-bearing minerals from two different deposits are studied. The first set of field samples come from a volcanogenic massive sulfide (VMS) deposit, the second part from a stratiform sedimentary copper (SSC) deposit. Different approaches are used to analyze the data. First, univariate regression (UVR) is used. However, due to the strong influence of matrix effects, this is not suitable for the quantitative analysis of copper grades. Second, the multivariate method of partial least squares regression (PLSR) is used, which is more suitable for quantification. In addition, the effects of the surrounding matrices on the LIBS data are characterized by principal component analysis (PCA), alternative regression methods to PLSR are tested and the PLSR calibration is validated using field samples.}, language = {en} } @article{D'Aprile2023, author = {D'Aprile, Iwan-Michelangelo}, title = {B{\"a}cker Roesike statt Humboldt}, series = {Nur in Freiheit wird man frei}, journal = {Nur in Freiheit wird man frei}, publisher = {Kiepenheuer \& Witsch}, address = {K{\"o}ln}, isbn = {978-3-462-50002-8}, pages = {7 -- 20}, year = {2023}, language = {de} } @article{Albrecht2023, author = {Albrecht, Anna Helena}, title = {Meinungsfreiheit und Pers{\"o}nlichkeitsrecht in der neueren Rechtsprechung des Bundesverfassungsgerichts - Klarstellung, Konkretisierung oder Nachjustierung?}, series = {Zeitschrift f{\"u}r Urheber- und Medienrecht}, journal = {Zeitschrift f{\"u}r Urheber- und Medienrecht}, number = {1}, publisher = {Nomos}, issn = {0177-6762}, pages = {8 -- 15}, year = {2023}, abstract = {Das Spannungsverh{\"a}ltnis zwischen Meinungsfreiheit und allgemeinem Pers{\"o}nlichkeitsrecht hat das Bundesverfassungsgericht seit Jahrzehnten und wiederholt besch{\"a}ftigt. Insbesondere in den letzten drei Jahren hatte sich das Gericht erneut intensiv damit zu befassen, einen angemessenen Ausgleich zwischen den sich gegen{\"u}berstehenden Grundrechtspositionen zu formulieren. Der Beitrag analysiert {\"u}berblicksartig, inwieweit es in seinen neueren Entscheidungen seine bisherige Rechtsprechung fortgef{\"u}hrt, erg{\"a}nzt oder gar nachjustiert hat.}, language = {de} } @article{Faber2023, author = {Faber, Eike}, title = {Der n{\"o}rdliche Schwarzmeerraum in der Antike}, series = {Ukraine und Ostmitteleuropa}, journal = {Ukraine und Ostmitteleuropa}, editor = {Rink, Martin and Haug, Clemens and Hammerich, Helmuth R.}, publisher = {Brill}, address = {Paderborn}, isbn = {978-3-506-79153-5}, pages = {28 -- 37}, year = {2023}, language = {de} } @article{Rashidi2023, author = {Rashidi, Laleh}, title = {Iran - das Pulverfass explodiert}, series = {Welttrends : das außenpolitische Journal}, volume = {31}, journal = {Welttrends : das außenpolitische Journal}, number = {195}, publisher = {WeltTrends}, address = {Potsdam}, isbn = {978-3-949887-06-2}, issn = {0944-8101}, pages = {48 -- 53}, year = {2023}, language = {de} } @article{BrenneckeErtugElfring2023, author = {Brennecke, Julia and Ertug, Gokhan and Elfring, Tom}, title = {Networking fast and slow}, series = {Journal of Management}, journal = {Journal of Management}, publisher = {Sage Publ.}, address = {London}, issn = {0149-2063}, doi = {10.1177/01492063221132483}, pages = {1 -- 29}, year = {2023}, abstract = {Growing interest in network dynamics has led to insights about patterns of network change, drivers of tie formation, and the temporal unfolding of the consequences of networks. To this area of inquiry, we introduce networking speed—the time that it takes for individuals to form a network tie—as an important but so far largely overlooked aspect. We develop a theory of networking speed that explains how different catalysts enable professionals to introduce variation into the speed with which they form interpersonal network ties. We discuss how such variation in the speed with which ties have been formed influences relational outcomes and the network returns that these ties generate. This discussion illustrates that high networking speed can entail advantages as well as pitfalls. We also explore temporal implications of networking speed—for instance, the persistence of the effects of speed over time. Overall, we conceptualize networking speed as a constitutive element of how interpersonal networks function in professional settings, and we propose a future research program for the integration of this novel concept into organizational network research.}, language = {en} }