The 1-deoxysphingolipids (1-deoxySLs) are formed by an alternate substrate usage of the enzyme, serine-palmitoyltransferase, and are devoid of the C1-OH-group present in canonical sphingolipids. Pathologically elevated 1-deoxySL levels are associated with the rare inherited neuropathy, HSAN1, and diabetes type 2 and might contribute to β cell failure and the diabetic sensory neuropathy. In anal...

A nitrogenase-inspired biomimetic chalcogel system comprising double-cubane [Mo2Fe6S8(SPh)3] and single-cubane (Fe4S4) biomimetic clusters demonstrates photocatalytic N2 fixation and conversion to NH3 in ambient temperature and pressure conditions. Replacing the Fe4S4 clusters in this system with other inert ions such as Sb(3+), Sn(4+), Zn(2+) also gave chalcogels that were photocatalytically a...

Diese Arbeit konzentriert sich auf die Hauptprobleme der Methode Smoothed Particle Hydrodynamics (SPH), welche oft zur Simulation von Flüssigkeiten und Gasen im Bereich der Computer Graphik verwendet wird. In der Dissertation präsentieren wir ein neues, inkompressibles Verfahren basierend auf SPH, welches Inkompressibilität durch eine Prädiktor-Korrektor Methode erzwingt. Mit unserem Ansatz kön...

The thioether-functionalized aminosilanes Me2Si(NH-C6H4-2-SR)2 (R=Ph, Me) were lithiated with n-BuLi and subsequently allowed to react CuCl in the presence of PMe3. In case Me2Si(NH-C6H4-2-SPh)2, dinuclear complex [Cu2{Me2Si(NC6H4-2-SPh)2}(PMe3)2] was isolated. copper atoms adopt a distorted trigonal-planar coordination (Cu−N: 191.2(2) pm, Cu−P: 216.3(1) Cu−S: 244.4(1) pm). reaction Li2Me2Si(N-...

This is a preliminary theoretical discussion on the computational requirements of the state of the art smoothed particle hydrodynamics (SPH) from the optics of pattern recognition and artificial intelligence. It is pointed out in the present paper that, when including anisotropy detection to improve resolution on shock layer, SPH is a very peculiar case of unsupervised machine learning. On the ...

An experimental setup and procedure for accurate transmittance measurements of candidate filters for the Auger Fluorescence Detector is presented. For this check, we used the Hitachi U-2000 double-beam spectrophotometer (Sph) of the Chemical Department of the University of Athens (UoA). After the calibration of the Sph, we are able to observe transmittance deviations over the area of the filter...

Patients presenting with flank pain are likely to have urological pathology but when features of hypotension are present high index of suspicion is needed to reach the cause such as perirenal haemorrhage. Spontaneous perirenal haemorrhage (SPH) is an uncommon presentation of vasculitis, autoimmune disease or malignancy. It is common in males in the age group between 30 and 60 years. Polyarterit...

Although silver nanoparticles are of great fundamental and practical interest, only one structure has been determined thus far: M4Ag44(SPh)30, where M is a monocation, and SPh is an aromatic thiolate ligand. This is in part due to the fact that no other molecular silver nanoparticles have been synthesized with aromatic thiolate ligands. Here we report the synthesis of M3Ag17(4-tert-butylbenzene...