In this paper, we present the characteristics of high-performance strain-compensated MOCVD-grown 1200-nm InGaAs and 1300-nm InGaAsN quantum-well (QW) lasers using AsH3 and U-Dimethylhydrazine as the group V precursors. The design of the InGaAsN QW active region utilizes an In-content of approximately 40%, which requires only approximately 0.5% N-content to realize emission wavelengths up to 131...

BACKGROUND For individuals with chemotherapy-related anemia, the clinical effectiveness of epoetin alfa (EPO) dosed once weekly ([QW], 40,000 units per dose) has been demonstrated to be indistinguishable from that observed with thrice-weekly dosing ([TIW], 10,000 units per dose). Whether the advantage of less-frequent administration justifies the higher EPO dosage used in the weekly regimen in ...

BACKGROUND AND OBJECTIVES In clinical practice, physicians often use once-weekly (QW) and biweekly (Q2W) dosing of epoetin alfa to treat anemia in patients with chronic kidney disease (CKD). Although the literature supports this practice, previous studies were limited by short treatment duration, lack of randomization, or absence of the approved three times per week (TIW) dosing arm. This rando...

Compressively strained 2 m GaInAsSb quantum well lasers with large valence band offsets and broadened waveguides display a record characteristic temperature, T0=140 °K for a 4-QW laser and a differential efficiency of 0.74 for a pulsed 2-QW device. The T0 of these antimonide lasers is 65% more than that reported for phosphide-based lasers operating at 2 m wavelength. A room-temperature threshol...

AIMS To assess treatment satisfaction and weight-related quality of life (QOL) in subjects with Type 2 diabetes treated with exenatide once weekly (QW) or twice daily (BID). METHODS In this 52-week randomized, multi-centre, open-label study, 295 subjects managed with diet and exercise and/or oral glucose-lowering medications received either exenatide QW or BID during weeks 1-30; thereafter, s...

Dynamic properties are studied for the AlGaN/GaN quantum well (QW) structures with and without the coating of colloidal ZnO nanocrystals (NCs). The QW exciton recombination rate was reduced in such hybrids compared to the bare QW structure only in the sample with the thinnest cap layer of 3 nm. Assuming that one of the recombination mechanisms in this hybrid is non-radiative resonant energy tra...

A planar double gate quantum wire transistor (QWT) is proposed and demonstrated. The transistor uses a narrow wire gate placed inside the gap of a split gate to create a single one-dimensional ( 1D) quantum wire (QW) . We demonstrate theoretically and experimentally that the wire gate can create a QW potential with a better confinement and therefore larger subband separations than that in other...

The metalorganic chemical vapor deposition of a highly strained InGaAsN quantum-well ~QW! surrounded by ~In!GaAsP direct barrier layers is investigated. We found that growth pause annealing with AsH3 , performed immediately before and after the growth of the QW, significantly improves the optical quality of InGaAsN QW with ~In!GaAsP direct barriers. The utilization of larger band gap barrier ma...

A fruitful approach to study the Fermi level position in GaInNAs/GaAs quantum wells QWs has been proposed in this paper. This approach utilizes contactless electroreflectance CER spectroscopy and a very simple design of semiconductor structures. The idea of this design is to insert a GaInNAs quantum well QW into a region of undoped GaAs layer grown on n-type GaAs substrate. The possible pinning...

Exenatide (also known as exendin-4) is a glucagon-like peptide-1 mimetic, which is indicated for the treatment of type 2 diabetes mellitus. The currently available formulation of this drug is a twice-daily exenatide (exenatide BID) injection that should be administered within 60 minutes of food. Once-weekly exenatide (exenatide QW) formulation is now being assessed in a clinical trial program. ...