The thermoelectric transport properties of elemental tellurium are investigated by density functional theory combined with the Boltzmann transport equation in the rigid band approximation. We find that the thermoelectric transport properties parallel and perpendicular to the helical chains are highly asymmetric (almost symmetric) for p(n-) type doped tellurium due to the anisotropic (isotropic)...

Selenium is traditionally considered as an antioxidant element and selenium compounds are often discussed in the context of chemoprevention and therapy. Recent studies, however, have revealed a rather more colorful and diverse biological action of selenium-based compounds, including the modulation of the intracellular redox homeostasis and an often selective interference with regulatory cellula...

We report the synthesis of platinum telluride nanoparticles (Pt(3)Te(4) NPs) in the solution phase at room temperature using a template-assisted method. The dendrimeric aggregates formed are composed of several small units of Pt(3)Te(4) NPs of ∼4 nm diameter. Tellurium nanowires (Te NWs) are used as the template and the reducing agent in the growth of NPs which occurs due to the galvanic replac...

Observation of high-temperature superconductivity in compressed sulfur hydrides has generated an irresistible wave of searches for new hydrogen-containing superconductors. We herein report the prediction of high-T_{c} superconductivity in tellurium hydrides stabilized at megabar pressures identified by first-principles calculations in combination with a swarm structure search. Although telluriu...

Significant differences in findings were seen between the intake amounts of iodine-131 that were derived from direct measurements and the estimated intake from environmental monitoring data at the Fukushima accident. To clarify these discrepancies, we have investigated the iodine-131 and tellurium-132 body burdens of five human subjects, who after being exposed to a radioactive plume, underwent...

We now report on l,2,3-tritellura-[3]ferrocenophane (5) which contains the Te3 chain as part of a cyclic structure: pared by tellurium insertion into the cyclopentadienyl-lithium bonds of l,l'-dilithioferrocene. Small amounts of 5 are already formed if a THF solution of the insertion product {Fe(C5H4TeLi)2} is stirred in the presence of a limited amount of air. Better yields of 5 are obtained i...

We have studied at cryogenic temperatures photoluminescence features which lie more than 0.15 eV below the band edge in Zn Cd& Te (0+x 0.09) crystals. The same features, namely a defect band which lies at about 0.13—0.20 eV below the band-gap energy and a peak at 1.1 eV, that are observed in pure CdTe samples are observed in these alloy materials. In annealed samples we observe that the 1.1eV f...

pain in icu patients should be managed effectively and safely. fentanyl and paracetamol are used frequently in icu. however experience using iv paracetamol in the setting of critically ill patients is limited. we evaluated the analgesic effect and adverse reactions of intravenous paracetamol compared to fentanyl in icu patients with mild to moderate pain. forty patients in a general icu were ra...