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The spatial magnetic properties (Through-Space NMR Shieldings-TSNMRS) of already synthesized dehydro[n]annulenes of various ring size (from C-12 to C-20) have been computed, visualized as Isochemical Shielding Surfaces (ICSS) of various size and direction, and were examined subject to present (anti)aromaticity. For this purpose the thus quantified ring current effect of the macro cycles on proximate protons in proton NMR spectra was employed.
Lobelia tupa, also called devil's tobacco, is a native plant from the center-south of Chile which has been used by the native people of Chile as a hallucinogenic and anesthetic plant. A new piperidine alkaloid, called pentylsedinine, which comprises five carbons in the side chain, was isolated from the aerial part of L. tupa, along with lobeline and lobelanidine. The structure was established on the basis of 1D and 2D NMR spectroscopy. While lobeline is a neutral antagonist at alpha 3 beta 2/alpha 3 beta 4 nAChR and alpha 7 nAChR, both lobelanidine and pentylsedinine act as partial agonists at nAChR
The fruit of Aristotelia chilensis is considered a "super fruit" due to its high concentration of polyphenols displaying exceptional antioxidant capacities ORAC. From maqui berries have been reported several anthocyanins and glycosylated flavonoids, those benefits increase the attention to restudy the plant. From the leaves of A. chilensis several indole alkaloids have been reported, we in addition to aristoteline, aristone, aristoquinoline and 3-fromylindole report the spectroscopic elucidation of 8-oxo-9-dehydromakomakine (1), hobartine (2) and a new alkaloid named 8-oxohobartine (3). Compound 1 to 3 did not show bactericidal activity against E. coli and S. aureus till 200 mu g.
Both the seat of the German government and the capitol of queer German culture, Berlin has been that spatial nexus of politics, sexuality and gender, work and leisure that has enabled the development of multifarious sexual and gender identities. This has caused celebration and consternation among Germans and foreigners alike. Contemporary studies of urban homosexual space cite an erosion of its 'authenticity' when cities market homosexual space in order to attract tourists. My literary analysis shows that Berlin's homosexual male culture and space had already been subject to commoditisation in the Weimar period (1918-1933), when Berliners discovered marketing potential in the French slight la vice allemand [the German vice] - male homosexuality. This article's examination of Weimar Berlin's spatial binary as 'sexy space' and 'sexualised place' in literature by Klaus Mann and Curt Moreck engages with current debates in leisure studies on the gendering and sexing of geography and leisure. Central to this re-evaluation of leisure and tourism in Weimar Berlin is my discussion of flanerie: the figure of the flaneuse indicates that flanerie was not the lone dominion of heterosexual men. In the context of urban leisure and male homosexuality, I argue that Weimar Berlin consistently and successfully negotiated its dual function of sexy space (allowing self-fashioning for homosexual men in Berlin) and sexualised place (voyeurism and sexual exploration for Berlin's newcomers and tourists).
Formate dehydrogenase (FDH) enzymes are attractive catalysts for potential carbon dioxide conversion applications. The FDH from Rhodobacter capsulatus (RcFDH) binds a bis-molybdopterin-guanine-dinucleotide (bis-MGD) cofactor, facilitating reversible formate (HCOO-) to CO2 oxidation. We characterized the molecular structure of the active site of wildtype RcFDH and protein variants using X-ray absorption spectroscopy (XAS) at the Mo K-edge. This approach has revealed concomitant binding of a sulfido ligand (Mo=S) and a conserved cysteine residue (S(Cys386)) to Mo(VI) in the active oxidized molybdenum cofactor (Moco), retention of such a coordination motif at Mo(V) in a chemically reduced enzyme, and replacement of only the S(Cys386) ligand by an oxygen of formate upon Mo(IV) formation. The lack of a Mo=S bond in RcFDH expressed in the absence of FdsC implies specific metal sulfuration by this bis-MGD binding chaperone. This process still functioned in the Cys386Ser variant, showing no Mo-S(Cys386) ligand, but retaining a Mo=S bond. The C386S variant and the protein expressed without FdsC were inactive in formate oxidation, supporting that both Moligands are essential for catalysis. Low-pH inhibition of RcFDH was attributed to protonation at the conserved His387, supported by the enhanced activity of the His387Met variant at low pH, whereas inactive cofactor species showed sulfido-to-oxo group exchange at the Mo ion. Our results support that the sulfido and S(Cys386) ligands at Mo and a hydrogen-bonded network including His387 are crucial for positioning, deprotonation, and oxidation of formate during the reaction cycle of RcFDH.
'Mitfühlend sprechen'
(2014)
Im Zentrum dieser interaktional-linguistischen Untersuchung steht die Frage, welchen Beitrag die prosodisch-phonetische Gestaltung einer Äußerung zu ihrer Interpretation als Darstellung von Empathie leistet. Dem liegt eine interaktionale Auffassung von Empathie zu Grunde: Empathie wird nicht als psychoemotionaler Zustand konzeptualisiert, sondern als Darstellung von Verstehen/ Verständnis/ Mitgefühl/ Mitleid in sozialer Interaktion. Gegenstand der Untersuchung ist die interaktive Bearbeitung persönlicher Erlebnisse in deutschen Alltagsgesprächen. Es wird gezeigt, dass – an spezifischen sequentiellen Positionen – Kombinationen folgender prosodisch-phonetischer Ressourcen potenziell relevant sind, um Äußerungen als empathisch, hier i.S.v. 'mitfühlend', interpretierbar zu machen: geringere und/ oder abnehmende Lautstärke/ Diminuendo, tiefes Tonhöhenregister, flach auslaufende Kontur, Behauchung, Knarrstimme, geringe Sprechspannung/ weiche Artikulation, Silbendehnung, Lippenrundung, rhythmische Integration/ Legato-Rhythmus.
'Gelegenheitsdichtung'
(2010)
'Discours indirect libre', 'erlebte Rede' et autres sources de malentendus en linguistique textuelle
(2001)
'Das Gefühl liegt dem Gehör so nahe' : the Physiological Foundations of Herder's Theory of Cognition
(1996)
'...just as it would have been in 1861' : stuttering colonial beginnings in ABC's outback house
(2010)
Two decades ago, Tarana Burke started using the phrase ‘me too’ to release victims of sexual abuse and rape from their shame and to empower girls from minority communities. In 2017, actress Alyssa Milano made the hashtag #MeToo go viral. This article’s concern is with the role of testimonial practices in the context of sexual violence. While many feminists have claimed that the word of those who claim to being sexually violated by others (should) have political and/or epistemic priority, others have failed to recognize the harm and injury of instances of sexual violence that are not yet acknowledged as such and failed to listen to victims from marginalized social groups. In fact, some feminists have attacked #MeToo for mingling accounts of ‘proper’ sexual violence and accounts that are not ‘proper’ experiences of sexual violence. My aim in this article is to show why this critique is problematic and find a philosophically fruitful way to understand the #MeToo-movement as a movement that strives for moral and conceptual progress.
"Zwischen den Zeilen" : Wittgenstein und Gendlin über die nicht-regelhafte Seite der Sprachkompetenz
(1998)
"Zwischen den Zeilen" : Wittgenstein und Gendlin über die nicht-regelhafte Seite der Sprachkompetenz
(1997)
"Wir sind neben der der menschlichen Gesellschaft" : eine lexikalische Fallstudie zu Rahel Varnhagen
(1999)
The article offers a rereading of Sibylla Schwarz’s prose eclogue, Faunus. By describing the circumstances and the development of a young love in detail, Schwarz directs the reader’s attention to the fact, that Christian moral and ethical standards are external, and, therefore, are to be rejected. Instead, she places the ‘anthropological’ dimension in the foreground, the interest in human beings and their emotional motivations. Affective control and adaptation to conventions are less important. In that regard, this short text can be seen as an integral part of a prehistory of ‘literary anthropology,’ which ultimately evolved only in the course of the 18th century, although, as will be shown, its precursors can already be found in the 17th century.
Cross-dressing took on new political meanings in Germany's Weimar Republic, with the emergence of organizations and periodicals aimed at promoting the interests of self-identified "transvestites." This new sexological category, developed by Magnus Hirschfeld in 1910, formed the basis for a shared sense of identity and belonging among individuals who identified as members of the "opposite" sex. Drawing on the experiences of the homosexual emancipation movement and discourses of bourgeois respectability, middle-class transvestites came together to demand legal and social recognition, including acknowledgement of "transsexual" desires. Their efforts represent a critical but forgotten moment in the history of transgender political activism.
Empirical evidence of the relationship between social support and post-disaster mental health provides support for a general beneficial effect of social support (main-effect model; Wheaton, 1985). From a theoretical perspective, a buffering effect of social support on the negative relationship between disaster-related stress and mental health also seems plausible (stress-buffering model; Wheaton, 1985). Previous studies, however, (a) have paid less attention to the buffering effect of social support and (b) have mainly relied on interpersonal support (but not collective-level support such as community resilience) when investigating this issue. This previous work might have underestimated the effect of support on post-disaster mental health. Building on a sample of residents in Germany recently affected by flooding (N = 118), we show that community resilience to flooding (but not general interpersonal social support) buffered against the negative effects of flooding on post-disaster mental health. The results support the stress-buffering model and call for a more detailed look at the relationship between support and resilience and post-disaster adjustment, including collective-level variables.