What's the difference between didymium and neodymium?
Didymium
Definition:
(n.) A rare metallic substance usually associated with the metal cerium; -- hence its name. It was formerly supposed to be an element, but has since been found to consist of two simpler elementary substances, neodymium and praseodymium. See Neodymium, and Praseodymium.
Example Sentences:
(1) Moreover, lanthanum itself as well as lanthanides other than cerium, e.g., gadolinium and didymium (praseodymium, neodymium), were successfully applied and can be recommended as capture agents for phosphatase cytochemistry.
(2) Chicken erythrocytes, and myxamoebae and plasmodia of Didymium iridis were employed as experimental tissues.
(3) Cell coats were cytochemically demonstrated for the first time in myxamebae of Fulig- septica, Didymium iridis, Dictyostelium discoideum, Cavostelium apophysatum, and amebae of Naegleria grubei.
(4) A method for the isolation of the plasma membranes of the acellular slime mould, Didymium iridis in the myxamoebae and swarm cell stages was developed using a modified dextranpolyethylene glycol aqueous two-phase polymer system.
(5) Structural and evolutionary comparisons suggest that the corresponding introns 1 and 2 were present in a common ancestor of Didymium and Physarum, and that the five introns in LSU rRNA genes of these myxomycetes were acquired in three different events.
(6) The inheritance of both the mitochondrial DNA (mtDNA) and the nuclear-encoded extrachromosomal ribosomal DNA (rDNA) has been studied in the myxomycete, Didymium iridis, by DNA-DNA hybridization of labeled probes to total DNA at various stages of the life cycle.
(7) We have determined the telomeric DNA sequence of the acellular slime molds Didymium iridis and Physarum polycephalum.
(8) To avoid formation of insoluble lanthanide hydroxide at alkaline pH citrate complexes with the capture ions cerium, lanthanum and didymium were used.
(9) This sequence was determined by cloning and sequencing the telomeric fragment of the linear extrachromosomal ribosomal DNA from Didymium, as well as direct end labeling and sequencing the rDNA from both organisms.
(10) Based on pairwise comparisons of LSU rRNA sequences, the time of divergence between the two myxomycete genera Didymium and Physarum was estimated.
(11) Haploid isolates Panamanian 2-7A8 and Honduran 1-2A1 of the heterothallic myxomycete Didymium iridis were investigated in order to determine whether membrane mating factors or receptors were present and necessary in order that cell fusion could occur and zygote formation take place.
(12) It is based on the distortion that the characteristic absorption bands of glass filters (holmium or didymium oxide), commonly used for calibration of spectrophotometers, introduce in the emitted fluorescence of fluorophores like indole, diphenyl hexatriene, xylene or rhodamine 6G.
(13) Haploid myxamoeboid mating types, CR5-11A11 and HON 1-2A1, of the acellular myxomycete Didymium iridis, were isolated and grown in liquid culture.
(14) The ribosomal DNA of the myxomycete Didymium iridis is organized as extrachromosomal linear molecules of about 20 kb, containing only one transcription unit of the ribosomal RNA genes.
(15) Quantitative cytochemical determinations were made of the DNA of zygotes formed from myxamoebae and swarm cells of Didymium iridis.
(16) We have examined five nuclear group I introns, located at three different positions in the large subunit ribosomal RNA (LSU rRNA) gene of the two myxomycete species, Didymium iridis and Physarum polycephalum.
Neodymium
Definition:
(n.) An elementary substance which forms one of the constituents of didymium. Symbol Nd. Atomic weight 140.8.
Example Sentences:
(1) A neodymium YAG (Nd:YAG) laser was evaluated in a dog ulcer model used in the same manner as is recommended for bleeding patients (power 55 W, divergence angle 4 degrees, with CO2 gas-jet assistance).
(2) A randomized study of selective absorption using a neodymium (Nd) YAG laser showed similar efficacy for the different wavelengths although scarring was greater with the Nd-YAG laser.
(3) Moreover, lanthanum itself as well as lanthanides other than cerium, e.g., gadolinium and didymium (praseodymium, neodymium), were successfully applied and can be recommended as capture agents for phosphatase cytochemistry.
(4) Both abscesses were drained transendoscopically by use of a contact neodymium:yttrium aluminum garnet laser.
(5) A neodymium:yttrium aluminum garnet (Nd:YAG) laser was used to study effects of applying laser irradiation transendoscopically to the corniculate process of the arytenoid cartilage in horses.
(6) A neodymium:yttrium-aluminum-garnet (Nd:YAG) laser was used to induce highly reproducible focal cortical lesions in anesthetized rats.
(7) The use of the neodymium:YAG(Nd:YAG) laser in urology in still in its infancy.
(8) The findings with diode and continuous-wave contact neodymium-YAG lasers were similar.
(9) A neodymium iron boron magnet is attached to the unerupted tooth, and a second, larger magnet is incorporated in a removable appliance.
(10) Neodymium-YAG laser therapy for unresectable malignant airway obstructions has a promising future.
(11) Using endoscopic neodymium-YAG laser application permits successful treatment of ulcerated bleeding cancer.
(12) Post-mortem aortic specimens of normal wall, lipomatous and calcified plaques were exposed to both continuous wave lasers (argon, neodymium-YAG 1064 nm) coupled to hot-tipped or sapphire tipped fibres and pulsed lasers (Excimer 193 nm, CO2, erbium-YAG).
(13) The further development of endoscopic instruments has made neodymium-YAG laser irradiation of ureteral tumors possible.
(14) The combination of intraoperative localization of intrarenal arteries by Doppler flowmetry and cutting through renal parenchyma using the neodymium-YAG laser beam was used in 7 patients with stag-horn calculi or recurrent stones.
(15) In view of the low morbidity, cutting and coagulation properties and minimal tissue changes, use of the neodymium:YAG laser would be our first choice of treatment modality.
(16) Removal of the lipoma was achieved with the Neodymium-Yttrium-Aluminum-Garnet (Nd:YAG) laser through a fiberoptic bronchoscope.
(17) Five patients with severe fibrous subglottic and tracheal stenosis were treated by endoscopic radial laser incision and dilation using both carbon dioxide and neodymium:yttrium aluminum garnet lasers.
(18) The records of 271 consecutive patients (373 eyes) who underwent neodymium-YAG laser iridotomy at our institution over a period of 12 months were reviewed.
(19) Malignant esophageal obstruction in 24 patients was treated using the neodymium:ytrium, aluminum, garnet laser.
(20) A technique is described using a neodymium:yttrium-aluminium-garnet (Nd:YAG) laser in combination with a special tracheoscope and high frequency jet ventilation (HFJV).