Vom Innen und vom Aussen. Zum Raum in der Poetik Paul Celans

This article deals with the conception of space in the poetics of Paul Celan in relation to French theory (Kristeva, Blanchot, Foucault). It analyses in detail one poem to show how Celan constructs his concept of space in the poetic form, relating it to Martin Buber dialogical thinking.

Die Konzentration. Zur Bewegung des dichterischen Sprechens in der Poetik Paul Celans

This article demonstrates the mouvement of poetic speech in Celan's poetics at the exemple of one poem, thus stressing the significance of the poetic form.

The 'stance' in the poetics of Paul Celan

This article deals with the ethics of Paul Celan's poetics, presenting and analysing his notion of 'Stehen'.

Zur Poetik Paul Celans: Gedicht und Mensch - Die Arbeit am Sinn

This publication summarises my PhD on Paul Celans poetics, focussing on the constitution of meaning and establishing it as a poetological anthropology.

Verwirklichende Raume - Poetik und Raumkonzeption bei Paul Celan und Martin Buber

This article with the conception of space in Paul Celan's poetics, comparing it to Martin Buber's and developing a notion of 'realisation', important to both Celan and Buber. Partant du concept du fantastique en tant qu'espace dans laquelle les phénomènes sont véritablement perçus au lieu de simplement se dérouler, l'article montre comment la rupture avec la réalité accoutumée peut mener à une sensation intense de l'être. Chez Martin Buber se trouve la description d'un telle espace, où l'unité est créée à partir de la polarité de tout ce qui est. Le poème peut représenter un exemple d'un tel espace « réalisant ». La conception de l'espace chez Buber est démontrée en dialogue avec le poème STEHEN de Paul Celan, afin de montrer comment le monde réifié est « réalisé » par la poésie. Ainsi sont mis en valeur le rapport mutuel et le lien indispensable entre réalités sociales et la réalité du non-espace.

Zur Korrespondenz Ingeborg Bachmann / Paul Celan - 'exemplarisch'? Der lebensschriftliche Anspruch der Dichtung

This article analyses the correspondence and relationship between Bachmann and Celan and elaborates the claims to literature of the poetics of these major postwar poets.

Blue bottle light: lecture demonstrations of homogeneous and heterogeneous photo-induced electron transfer reactions

The classic, non-photochemical blue bottle experiment involves the reaction of methylene blue (MB) with deprotonated glucose, to form a bleached form of the dye, leuco-methylene blue (LMB), and subsequent colour recovery by shaking with air. This reaction is a popular demonstrator of key principles in kinetics and reaction mechanisms. Here it is modified so as to highlight features of homogenous and heterogeneous photoinduced electron transfer (PET) (Pure Appl. Chem., 2007, 79, 293-465) reactions, i.e. blue bottle light experiments. The homogeneous blue bottle light experiment uses methylene blue, MB, as the photo-sensitizer and triethanolamine as the sacrificial electron donor. Visible light irradiation of this system leads to its rapid bleaching, followed by the ready restoration of its original colour upon shaking away from the light source. The heterogeneous blue bottle light experiment uses titania as the photo-sensitizer, MB as a redox indicator and glucose as the sacrificial electron donor. UVA light irradiation of this system leads to the rapid bleaching of the MB and the gradual restoration of its original colour with shaking and standing. The latter 'dark' step can be made facile and more demonstrator-friendly by using platinised titania particles. These two photochemical versions of the blue bottle experiment are used to explore the factors which underpin homogeneous and heterogeneous PET reactions and provide useful demonstrations of homogeneous and heterogeneous photochemistry.

Politeness and social signals

In the literature, politeness has been researched within many disciplines. Although Brown and Levinson’s theory of politeness (1978, 1987) is often cited, it is primarily a linguistic theory and has been criticized for its lack of generalizability to all cultures. Consequently, there is a need for a more comprehensive approach to understand and explain politeness. We suggest applying a social signal framework that considers politeness as a communicative state. By doing so, we aim to unify and explain politeness and its corresponding research and identify further research needed in this area.

Common variants at the MHC locus and at chromosome 16q24.1 predispose to Barrett's esophagus

Barrett's esophagus is an increasingly common disease that is strongly associated with reflux of stomach acid and usually a hiatus hernia, and it strongly predisposes to esophageal adenocarcinoma (EAC), a tumor with a very poor prognosis. We report the first genome-wide association study on Barrett's esophagus, comprising 1,852 UK cases and 5,172 UK controls in the discovery stage and 5,986 cases and 12,825 controls in the replication stage. Variants at two loci were associated with disease risk: chromosome 6p21, rs9257809 (P(combined) = 4.09 × 10(-9); odds ratio (OR) = 1.21, 95% confidence interval (CI) =1.13-1.28), within the major histocompatibility complex locus, and chromosome 16q24, rs9936833 (P(combined) = 2.74 × 10(-10); OR = 1.14, 95% CI = 1.10-1.19), for which the closest protein-coding gene is FOXF1, which is implicated in esophageal development and structure. We found evidence that many common variants of small effect contribute to genetic susceptibility to Barrett's esophagus and that SNP alleles predisposing to obesity also increase risk for Barrett's esophagus.

Consensus statements for management of Barrett's dysplasia and early-stage esophageal adenocarcinoma, based on a Delphi process

Esophageal adenocarcinoma (EA) is increasingly common among patients with Barrett's esophagus (BE). We aimed to provide consensus recommendations based on the medical literature that clinicians could use to manage patients with BE and low-grade dysplasia, high-grade dysplasia (HGD), or early-stage EA.