Lasing of Yb3+ in a disordered single crystal host, NaGd(WO4)2, is reported. Pump efficiencies as high as 20% and slope efficiencies as high as 30% are achieved for both sigma- and pi-polarizations with Ti:sapphire laser pumping. The emission of Yb:NaGd(WO4)2 is centered near 1030 nm. Tunability between 1016 and 1049 nm is obtained with a Lyot filter.

Nasal preretinal neovascularisations have been observed to develop at least two weeks earlier than those on the temporal side in more than a third of premature babies with retinopathy of prematurity (ROP) stage 3, weighing between 690 and 1030 g. All these babies were assigned for cryotherapy. This interesting observation is discussed in relation to retinal vascular development and the pathogen...

Recent studies of supported vanadium oxide catalysts have revealed that the vanadium oxide component is present as a twodimensional metal oxide overlayer on oxide supports (i.e., A1203, TiO2) (1-9). These surface vanadium oxide species are generally more selective and active than bulk, crystalline V205 for the partial oxidation of hydrocarbons (3, 5, 10, 11). The molecular structures of these s...

Targeted cancer therapy against the epidermal growth factor receptor (EGFR) leads to stereotypic adverse effects. Up 90% of patients develop papulopustular eruptions within first two weeks treatment. This acneiform rash appears in face and upper trunk patients, thereby severely reducing their quality life. Moreover, a third those develops additional folliculitis driven by bacterial entities suc...

In this paper, the 946/1030 nm dual-wavelength LG01 mode vortex laser is obtained by applying intracavity cascade pumped structure and annular-beam end-pumped method, an innovative pioneering exploration of transverse laser. First, we demonstrate oscillation characteristic theoretical model laser, considering reabsorption effect. Then length crystal transmittance output mirror are simulated ana...

‡ Department für Chemie, Universität für Bodenkultur, A-1190 Wien, Austria § Institut für Mikrobiologie, ETH Zürich, Wolfgang-Pauli-Str. 10, 8093 Zürich, Switzerland ¶ Institut für Parasitologie and || Vetomics Core Facility for Research, Veterinärmedizinische Universität, A-1210 Wien, Austria ** Department of Chromosome Biology, Max F. Perutz Laboratories, Universität Wien, A-1030 Wien, Austri...