@article{KupferBauervanRoesteletal.2022, author = {Kupfer, Thomas and Bauer, Evan B. and van Roestel, Jan and Bellm, Eric C. and Bildsten, Lars and Fuller, Jim and Prince, Thomas A. and Heber, Ulrich and Geier, Stephan and Green, Matthew J. and Kulkarni, Shrinivas R. and Bloemen, Steven and Laher, Russ R. and Rusholme, Ben and Schneider, David}, title = {Discovery of a Double-detonation Thermonuclear Supernova Progenitor}, series = {The astrophysical journal : an international review of spectroscopy and astronomical physics ; Part 2, Letters}, volume = {925}, journal = {The astrophysical journal : an international review of spectroscopy and astronomical physics ; Part 2, Letters}, number = {2}, publisher = {IOP Publ. Ltd.}, address = {Bristol}, issn = {2041-8205}, doi = {10.3847/2041-8213/ac48f1}, pages = {10}, year = {2022}, abstract = {We present the discovery of a new double-detonation progenitor system consisting of a hot subdwarf B (sdB) binary with a white dwarf companion with a P (orb) = 76.34179(2) minutes orbital period. Spectroscopic observations are consistent with an sdB star during helium core burning residing on the extreme horizontal branch. Chimera light curves are dominated by ellipsoidal deformation of the sdB star and a weak eclipse of the companion white dwarf. Combining spectroscopic and light curve fits, we find a low-mass sdB star, M (sdB) = 0.383 +/- 0.028 M (circle dot) with a massive white dwarf companion, M (WD) = 0.725 +/- 0.026 M (circle dot). From the eclipses we find a blackbody temperature for the white dwarf of 26,800 K resulting in a cooling age of approximate to 25 Myr whereas our MESA model predicts an sdB age of approximate to 170 Myr. We conclude that the sdB formed first through stable mass transfer followed by a common envelope which led to the formation of the white dwarf companion approximate to 25 Myr ago. Using the MESA stellar evolutionary code we find that the sdB star will start mass transfer in approximate to 6 Myr and in approximate to 60 Myr the white dwarf will reach a total mass of 0.92 M (circle dot) with a thick helium layer of 0.17 M (circle dot). This will lead to a detonation that will likely destroy the white dwarf in a peculiar thermonuclear supernova. PTF1 J2238+7430 is only the second confirmed candidate for a double-detonation thermonuclear supernova. Using both systems we estimate that at least approximate to 1\% of white dwarf thermonuclear supernovae originate from sdB+WD binaries with thick helium layers, consistent with the small number of observed peculiar thermonuclear explosions.}, language = {en} } @article{PelisoliDorschHeberetal.2022, author = {Pelisoli, Ingrid and Dorsch, Matti and Heber, Ulrich and G{\"a}nsicke, Boris and Geier, Stephan and Kupfer, Thomas and Nemeth, Peter and Scaringi, Simone and Schaffenroth, Veronika}, title = {Discovery and analysis of three magnetic hot subdwarf stars}, series = {Monthly notices of the Royal Astronomical Society}, volume = {515}, journal = {Monthly notices of the Royal Astronomical Society}, number = {2}, publisher = {Oxford University Press}, address = {Oxford}, issn = {0035-8711}, doi = {10.1093/mnras/stac1069}, pages = {2496 -- 2510}, year = {2022}, abstract = {Magnetic fields can play an important role in stellar evolution. Among white dwarfs, the most common stellar remnant, the fraction of magnetic systems is more than 20 per cent. The origin of magnetic fields in white dwarfs, which show strengths ranging from 40 kG to hundreds of MG, is still a topic of debate. In contrast, only one magnetic hot subdwarf star has been identified out of thousands of known systems. Hot subdwarfs are formed from binary interaction, a process often associated with the generation of magnetic fields, and will evolve to become white dwarfs, which makes the lack of detected magnetic hot subdwarfs a puzzling phenomenon. Here we report the discovery of three new magnetic hot subdwarfs with field strengths in the range 300-500 kG. Like the only previously known system, they are all helium-rich O-type stars (He-sdOs). We analysed multiple archival spectra of the three systems and derived their stellar properties. We find that they all lack radial velocity variability, suggesting formation via a merger channel. However, we derive higher than typical hydrogen abundances for their spectral type, which are in disagreement with current model predictions. Our findings suggest a lower limit to the magnetic fraction of hot subdwarfs of 0.147(+0.143)(-0.047) per cent, and provide evidence for merger-induced magnetic fields which could explain white dwarfs with field strengths of 50-150 MG, assuming magnetic flux conservation.}, language = {en} } @article{BiermannBachKlaeringetal.2022, author = {Biermann, Robin Tim and Bach, Linh T. and Kl{\"a}ring, Hans-Peter and Baldermann, Susanne and B{\"o}rnke, Frederik and Schwarz, Dietmar}, title = {Discovering tolerance-A computational approach to assess abiotic stress tolerance in tomato under greenhouse conditions}, series = {Frontiers in sustainable food systems}, volume = {6}, journal = {Frontiers in sustainable food systems}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2571-581X}, doi = {10.3389/fsufs.2022.878013}, pages = {12}, year = {2022}, abstract = {Modern plant cultivars often possess superior growth characteristics, but within a limited range of environmental conditions. Due to climate change, crops will be exposed to distressing abiotic conditions more often in the future, out of which heat stress is used as example for this study. To support identification of tolerant germplasm and advance screening techniques by a novel multivariate evaluation method, a diversity panel of 14 tomato genotypes, comprising Mediterranean landraces of Solanum lycopersicum, the cultivar "Moneymaker" and Solanum pennellii LA0716, which served as internal references, was assessed toward their tolerance against long-term heat stress. After 5 weeks of growth, young tomato plants were exposed to either control (22/18 degrees C) or heat stress (35/25 degrees C) conditions for 2 weeks. Within this period, water consumption, leaf angles and leaf color were determined. Additionally, gas exchange and leaf temperature were investigated. Finally, biomass traits were recorded. The resulting multivariate dataset on phenotypic plasticity was evaluated to test the hypothesis, that more tolerant genotypes have less affected phenotypes upon stress adaptation. For this, a cluster-analysis-based approach was developed that involved a principal component analysis (PCA), dimension reduction and determination of Euclidean distances. These distances served as measure for the phenotypic plasticity upon heat stress. Statistical evaluation allowed the identification and classification of homogeneous groups consisting each of four putative more or less heat stress tolerant genotypes. The resulting classification of the internal references as "tolerant" highlights the applicability of our proposed tolerance assessment model. PCA factor analysis on principal components 1-3 which covered 76.7\% of variance within the phenotypic data, suggested that some laborious measure such as the gas exchange might be replaced with the determination of leaf temperature in larger heat stress screenings. Hence, the overall advantage of the presented method is rooted in its suitability of both, planning and executing screenings for abiotic stress tolerance using multivariate phenotypic data to overcome the challenge of identifying abiotic stress tolerant plants from existing germplasms and promote sustainable agriculture for the future.}, language = {en} } @article{PueblaAntunesFelser2022, author = {Puebla Antunes, Cecilia and Felser, Claudia}, title = {Discourse Prominence and Antecedent MisRetrieval during Native and Non-Native Pronoun Resolution}, series = {Discours : revue de linguistique, psycholinguistique et informatique}, journal = {Discours : revue de linguistique, psycholinguistique et informatique}, number = {29}, publisher = {Universit{\´e} de Paris-Sorbonne, Maion Recherche}, address = {Paris}, issn = {1963-1723}, doi = {10.4000/discours.11720}, pages = {33}, year = {2022}, abstract = {Previous studies on non-native (L2) anaphor resolution suggest that L2 comprehenders are guided more strongly by discourse-level cues compared to native (L1) comprehenders. Here we examine whether and how a grammatically inappropriate antecedent's discourse status affects the likelihood of it being considered during L1 and L2 pronoun resolution. We used an interference paradigm to examine how the extrasentential discourse impacts the resolution of German object pronouns. In an eye-tracking-during-reading experiment we examined whether an elaborated local antecedent ruled out by binding Condition B would be mis-retrieved during pronoun resolution, and whether initially introducing this antecedent as the discourse topic would affect the chances of it being mis-retrieved. While both participant groups rejected the inappropriate antecedent in an offline questionnaire irrespective of its discourse prominence, their real-time processing patterns differed. L1 speakers initially mis-retrieved the inappropriate antecedent regardless of its contextual prominence. L1 Russian/L2 German speakers, in contrast, were affected by the antecedent's discourse status, considering it only when it was discourse-new but not when it had previously been introduced as the discourse topic. Our findings show that L2 comprehenders are highly sensitive to discourse dynamics such as topic shifts, supporting the claim that discourse-level cues are more strongly weighted during L2 compared to L1 processing.}, language = {en} } @article{ClausenStede2022, author = {Clausen, Yulia and Stede, Manfred}, title = {Discourse connectives and their arguments}, series = {Linguistics Vanguard}, volume = {8}, journal = {Linguistics Vanguard}, number = {1}, publisher = {De Gruyter}, address = {Berlin}, issn = {2199-174X}, doi = {10.1515/lingvan-2021-0102}, pages = {95 -- 111}, year = {2022}, abstract = {Adverbial connectives like therefore, which link a preceding 'external' to an 'internal' argument, can be regarded as anaphoric: The external argument is selected by an interpretation process akin to that of an event anaphor, and intervening material can appear between both arguments. We report on a crowdsourcing experiment on the German connectives trotzdem and dennoch that studies factors that lead readers to assume such long-distance arguments: semantic plausibility of intervening material, 'subjective' versus 'objective' content, and the presence of an anaphoric morpheme in the connective. We find that the type and content of the intervening material play an important role in argument choice.}, language = {en} } @article{SkopeteasVerhoevenFanselow2022, author = {Skopeteas, Stavros and Verhoeven, Elisabeth and Fanselow, Gisbert}, title = {Discontinuous noun phrases in Yucatec Maya}, series = {Journal of linguistics : JL / publ. for the Linguistics Association of Great Britain}, volume = {58}, journal = {Journal of linguistics : JL / publ. for the Linguistics Association of Great Britain}, number = {3}, publisher = {Cambridge University Press}, address = {New York}, issn = {0022-2267}, doi = {10.1017/S0022226720000419}, pages = {609 -- 648}, year = {2022}, abstract = {Languages differ in whether or not they allow discontinuous noun phrases. If they do, they further vary in the ways the nominal projections interact with the available syntactic operations. Yucatec Maya has two left-peripheral configurations that differ syntactically: a preverbal position for foci or wh-elements that is filled in by movement, and the possibility to adjoin topics at the highest clausal layer. These two structural options are reflected in different ways of the formation of discontinuous patterns. Subextraction from nominal projections to the focus position yielding discontinuous NPs is possible, but subject to several restrictions. It observes conditions on extraction domains, and does not apply to the left branch of nominal structures. The topic position also appears to license discontinuity, typically involving a non-referential nominal expression as the topic and quantifiers/adjectives that form an elliptical nominal projection within the clause proper. Such constructions can involve several morphological and syntactic mismatches between their parts that are excluded for continuous noun phrases, and they are not sensitive to syntactic island restrictions. Thus, in a strict sense, discontinuities involving the topic position are only apparent, because the construction involves two independent nominal projections that are semantically linked.}, language = {en} } @article{BrueckKnauerSchwering2022, author = {Br{\"u}ck, Christian and Knauer, Thorsten and Schwering, Anja}, title = {Disclosure of value-based performance measures}, series = {Accounting and business research}, volume = {53}, journal = {Accounting and business research}, number = {6}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {0001-4788}, doi = {10.1080/00014788.2022.2062585}, pages = {671 -- 698}, year = {2022}, abstract = {We examine the determinants of the disclosure of value-based (VB) performance measures in Germany. We argue that firms are more likely to disclose VB performance measures when information asymmetry is greater, as greater information asymmetry means firms have a greater need to credibly signal a shareholder value orientation. Using a hand-collected dataset of German listed firms covering 1,528 firm-years from 2004 to 2011, we demonstrate that firms are more likely to disclose a VB performance measure if the free float is larger than the blocking minority and also, when firms are large, if they have high foreign sales to total sales ratios and are not cross-listed internationally. Our results indicate that German firms use VB performance measures to improve investor communication and to substantiate their shareholder value orientation. Our results should be interpreted against a background of increased shareholder value orientation and sophisticated cost accounting in German firms.}, language = {en} } @article{Scianna2022, author = {Scianna, Bastian Matteo}, title = {Directing the war from triumph to disaster}, series = {The Routledge history of the Second World War}, journal = {The Routledge history of the Second World War}, editor = {Bartrop, Paul R.}, publisher = {Routledge}, address = {Abingdon}, isbn = {9780429455353}, doi = {10.4324/9780429455353-16}, pages = {181 -- 194}, year = {2022}, abstract = {After the Second World War, Adolf Hitler and Benito Mussolini were singled out as evil geniuses who misled the masses and plunged them into an "unwanted war." In relation to their armed forces, this narrative argued that the generals under their command had been demoted to powerless tools in the hands of the dictators, having to follow orders and with no sway over decision-making. It was further asserted that Germany and Italy had not been able to secure a victory due to the dictators' meddling. Yet, as this chapter shows, there are important differences between the German and Italian cases. The chapter compares both the command structures in which the dictators operated as well as their grand strategies and how they cooperated during the war. Their personal relationship will be also analyzed, as it is impossible to look at the Axis without understanding the complex personal relationship at the very top. The strategies of both Hitler and Mussolini will be looked at and how each leader behaved in terms of working with their closest ally, together with some examples of cooperation on the lower military rungs.}, language = {en} } @article{VoroshninTarasovBokaietal.2022, author = {Voroshnin, Vladimir and Tarasov, Artem V. and Bokai, Kirill A. and Chikina, Alla and Senkovskiy, Boris V. and Ehlen, Niels and Usachov, Dmitry Yu. and Gruneis, Alexander and Krivenkov, Maxim and Sanchez-Barriga, Jaime and Fedorov, Alexander}, title = {Direct spectroscopic evidence of magnetic proximity effect in MoS2 monolayer on graphene/Co}, series = {ACS nano}, volume = {16}, journal = {ACS nano}, number = {5}, publisher = {American Chemical Society}, address = {Washington}, issn = {1936-0851}, doi = {10.1021/acsnano.1c10391}, pages = {7448 -- 7456}, year = {2022}, abstract = {A magnetic field modifies optical properties and provides valley splitting in a molybdenum disulfide (MoS2) monolayer. Here we demonstrate a scalable approach to the epitaxial synthesis of MoS2 monolayer on a magnetic graphene/Co system. Using spin- and angle-resolved photoemission spectroscopy we observe a magnetic proximity effect that causes a 20 meV spin-splitting at the (Gamma) over bar point and canting of spins at the (K) over bar point in the valence band toward the in-plane direction of cobalt magnetization. Our density functional theory calculations reveal that the in-plane spin component at (K) over bar is localized on Co atoms in the valence band, while in the conduction band it is localized on the MoS2 layer. The calculations also predict a 16 meV spin-splitting at the (Gamma) over bar point and 8 meV (K) over bar-(K) over bar' valley asymmetry for an out-of-plane magnetization. These findings suggest control over optical transitions in MoS2 via Co magnetization. Our estimations show that the magnetic proximity effect is equivalent to the action of the magnetic field as large as 100 T.}, language = {en} } @article{WittenbecherCuadratJohnstonetal.2022, author = {Wittenbecher, Clemens and Cuadrat, Rafael and Johnston, Luke and Eichelmann, Fabian and J{\"a}ger, Susanne and Kuxhaus, Olga and Prada, Marcela and Del Greco, Fabiola M. and Hicks, Andrew A. and Hoffman, Per and Krumsiek, Jan and Hu, Frank B. and Schulze, Matthias B.}, title = {Dihydroceramide- and ceramide-profiling provides insights into human cardiometabolic disease etiology}, series = {Nature communications}, volume = {13}, journal = {Nature communications}, publisher = {Nature Research}, address = {Berlin}, issn = {2041-1723}, doi = {10.1038/s41467-022-28496-1}, pages = {13}, year = {2022}, abstract = {Metabolic alterations precede cardiometabolic disease onset. Here we present ceramide- and dihydroceramide-profiling data from a nested case-cohort (type 2 diabetes [T2D, n = 775]; cardiovascular disease [CVD, n = 551]; random subcohort [n = 1137]) in the prospective EPIC-Potsdam study. We apply the novel NetCoupler-algorithm to link a data-driven (dihydro)ceramide network to T2D and CVD risk. Controlling for confounding by other (dihydro)ceramides, ceramides C18:0 and C22:0 and dihydroceramides C20:0 and C22:2 are associated with higher and ceramide C20:0 and dihydroceramide C26:1 with lower T2D risk. Ceramide C16:0 and dihydroceramide C22:2 are associated with higher CVD risk. Genome-wide association studies and Mendelian randomization analyses support a role of ceramide C22:0 in T2D etiology. Our results also suggest that (dh)ceramides partly mediate the putative adverse effect of high red meat consumption and benefits of coffee consumption on T2D risk. Thus, (dihydro)ceramides may play a critical role in linking genetic predisposition and dietary habits to cardiometabolic disease risk.}, language = {en} }