10 research outputs found
Stable isomeric structures of the pyridine cation (C5H5N center dot+) and protonated pyridine (C5H5NH+) elucidated by cold ion infrared spectroscopy
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225745.pdf (publisher's version ) (Open Access)8 p
Publication: A vibrational action spectroscopic study of the Renner-Teller and spin-orbit affected cyanoacetylene radical cation HC3N+
Dataset for the above publication
Rap, Nat. Astron.
This dataset contains data for the article "Low-temperature nitrogen-bearing polycyclic aromatic hydrocarbon formation routes validated by infrared spectroscopy". It includes the source data of several figures, i.e. the recorded experimental and calculated IR spectra, and the results of quantum-chemical calculations as log files.Abstract:Polycyclic aromatic hydrocarbons (PAHs) are abundant in many regions of the Universe, representing a major reservoir for cosmiccarbon. However, their formation pathways in cold regions of space remain elusive. Recent astronomical detections showthat current astrochemical models drastically underestimate the abundance of aromatic molecules and suggest that additionalformation pathways such as ion–molecule reactions need to be considered. Here we reveal efficient low-temperature formationpathways towards nitrogen-containing polycyclic aromatic hydrocarbons via exothermic pyridine+ and acetylene ion–moleculereactions. The experimental approach combines kinetics with spectroscopic probing and unambiguously identifies key reactionintermediates and the final nitrogen-containing polycyclic aromatic hydrocarbon product quinolizinium+, a structure that isthought to contribute to the 6.2 μm interstellar emission feature. This study not only provides competing formation pathwaysrelevant in the chemistry of the interstellar medium and Titan's atmosphere, but also delivers information to verify in-silicopotential energy surfaces, astrochemical models and infrared observations
A vibrational action spectroscopic study of the Renner-Teller and spin-orbit affected cyanoacetylene radical cation HC3N+
Dataset for the above publication
Laboratory gas-phase vibrational spectra of [C3H3]+ isomers and isotopologues by IRPD spectroscopy
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227111.pdf (publisher's version ) (Open Access
Strong ortho/para effects in the vibrational spectrum of Cl−(H2)
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244860.pdf (Publisher’s version ) (Open Access
Gene Expression Profiling of Gastric Cancer
Stress urinary incontinence (SUI) is the most observed type of urinary incontinence and is defined as the loss of urine following a rise in abdominal pressure. The TVT (Tension-free Vaginal Tape), a mid-urethral sling (MUS), was introduced in 1996 and soon became the gold standard in the surgical treatment of SUI. Over the last decade, numerous MUS devices have been introduced but only some were able to achieve similar results in comparison to the original TVT.
The main question of this thesis is whether slings, old and new, for either male and female, can live up to the expectations of both patients and physicians by being both safe and effective in curing urinary incontinence. Secondly, the question is raised whether sling surgery is anatomically safe with regard to those nervous systems which are essential for the sexual function or may actually be responsible for iatrogenic neurological damage during placement.
In this thesis we conclude that many slings were, or still are, freely available on the market without any proper pre-market research. Moreover sling surgery can have serious negative side-effects on sexual function that should be a standard part of the informed consent provided when opting for surgery.</p