(n.) A compound of arsenic with a metal, or positive element or radical; -- formerly called arseniuret.
Example Sentences:
(1) Gallium arsenide has proved to be an ideal substrate material for some uses but is associated with unique health hazards.
(2) Indium arsenide (InAs) is partially dissociated in vivo to form inorganic arsenic and indium and excreted into the urine and feces.
(3) Gallium-Aluminium-Arsenide (Ga-Al-As) diode laser pain attenuator PANALAS-4000 manufactured by Japan Medical Laser Laboratory was used in the following specifications; wave length: 830 nm, power: 20-40 mW, frequency: 5-50 c.p.s., pulse duty: 0.9.
(4) Active sites on the gallium arsenide surface initiate the reaction that forms AsH3 gas.
(5) It was revealed that arsenide-gallium laser irradiation causes the change of intracellular structure.
(6) New advances in the highly competitive field of microelectronics involve exposure to a variety of hazards such as gallium arsenide.
(7) The effect of low power Helium-Neon (He-Ne) and Gallium-Arsenide (Ga-As) laser on the slowly adapting crustacean stretch receptor was studied.
(8) The increasing use of gallium arsenide (GaAs) in the electronics industry has produced the need for pharmacokinetic and toxicologic data on GaAs.
(9) The transscleral effects on rabbit ciliary body of Nd:YAG and diode laser wavelengths were compared using a CW Nd:YAG laser and a CW Aluminum Gallium Arsenide diode laser.
(10) The present work investigates the role of surface properties of sulfides and arsenides, which are present in metal mines, in oxidizing mechanisms capable of inducing oxidative stress and, possibly, of participating in carcinogenesis.
(11) Ten patients received low-energy gallium-arsenide laser treatment, and ten received placebo laser treatment.
(12) Gallium arsenide (GaAs) is an intermetallic compound that is recognized as a potential toxicological risk to workers occupationally exposed to its dust.
(13) Crystalline gallium arsenide (GaAs) was found to dissolve in an aqueous solution containing the inorganic anions, chloride, sulfate, bicarbonate, monohydrogen phosphate, and dihydrogen phosphate, and the organic anions, acetate and citrate.
(14) Laser puncture (LJ) using semiconductor gallium-arsenide apparatus Uzor (wave-length 890 nm) was made in 30 patients with chronic obstructive diseases of the lungs.
(15) The effect of gallium-aluminum-arsenide laser irradiation on the proliferation of human lymphocytes in culture in response to mitogenic stimulation by phytohemagglutinin was investigated.
(16) This study was carried out to explore the pain-alleviating effect of Ga-As + He-Ne laser (gallium-arsenide + helium-neon) in lateral epicondylalgia.
(17) None of the other strong acids that were investigated reacted with gallium arsenide to form AsH3.
(18) The effect of low-power gallium aluminium arsenide diode laser irradiation on the development of synapses was studied in the radiatum layer and the lacunosum-molecular layer of field CA3 of the neonatal rat hippocampus.
(19) Intratracheal administration of gallium arsenide particulate suspensions has been shown to result in inhibition of delta-aminolevulinic acid dehydratase (ALAD) in several tissues and increased excretion of the heme precursor aminolevulinic acid (ALA).
(20) The instrument consists of a double grating monochromator in front of a gallium arsenide photomultiplier that is interfaced with a desktop computer.
Arsenopyrite
Definition:
(n.) A mineral of a tin-white color and metallic luster, containing arsenic, sulphur, and iron; -- also called arsenical pyrites and mispickel.
Example Sentences:
(1) The following compounds (at a concentration of 1%) were used as an energy source: pyrite, chalcopyrite, arsenopyrite, antimonite, galenite, sphalerite, and copper-zinc-pyrite ore. A considerable part of cells was found to be attached to the surface of crystals in the course of oxidation of the above sulfide minerals.