What's the difference between neodymium and praseodymium?

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).

Praseodymium


Definition:

  • (n.) An elementary substance, one of the constituents of didymium; -- so called from the green color of its salts. Symbol Ps. Atomic weight 143.6.

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) The interaction of a series of beta-adrenoreceptor blocking agents with unilamellar dimyristoylphosphatidylcholine (DMPC) liposomes has been studied by proton nuclear magnetic resonance (1H-NMR) in the presence of praseodymium cation (Pr3+) at 30 degrees C. Addition of Pr3+ increased the splitting of the trimethylammonium group signals arising from the phospholipid molecules located at the internal and external surfaces of the bilayers.
  • (3) After oral administration, silipide exhibited a significant and dose-related protective effect against the hepatotoxicity induced by CCl4, praseodymium, ethanol and galactosamine.
  • (4) In the serum, phospholipid concentration fell to half the normal value within the first 24 hrs after praseodymium intoxication.
  • (5) On the other hand, energy transfer measurements using the lanthanide, praseodymium (Pr3+), as an acceptor indicate that IAEDANS is located 16-18 A from the binding site(s) of this calcium analog.
  • (6) Absorption difference and comparative absorption spectrophotometric studies on praseodymium(III) and fluorouracil, fluorocytosine, fluoroadenine, fluorothymine, fluorouridine, fluorocytidine, fluoroadenosine and fluorothymidine systems at pH approximately 5.5 and in different stoichiometries in 80% DMF medium have been carried out.
  • (7) The pretreatment of animals with phenobarbital normalized the microsomal enzyme impairment caused by praseodymium.
  • (8) The perovskite-like compounds RE(1-X)Pb(5)MnO(3) and RECoO(3), where RE (rare earth) is lanthanum, praseodymium, or neodymium, are active catalysts for the oxidation of carbon monoxide.
  • (9) The separate identification of the -N(+)-(CH(3))(3) groups located on the outside and inside of phospholipid bilayers observed in proton magnetic resonance spectroscopy upon addition of low concentrations of praseodymium ion was exploited to investigate the effects of incorporated cholesterol.
  • (10) The plot of the p2H dependence of the chemical shift of the outer trimethylammonium resonance of phosphatidylcholine liposomes with praseodymium ions present only on the outside of vesicles, results in a sigmoidal titration curve with its midpoint at p2H 1.5.
  • (11) for 15 days, praseodymium did not alter pharmacological effects and pharmacokinetic parameters.
  • (12) The addition of lanthanum chloride or praseodymium chloride in a peptide solution induces some conformational changes as displayed by several concerted variations of peptide resonances.
  • (13) Serum ornithine carbamoyltransferase (OCT) in rats poisoned with lanthanum, cerium and praseodymium.
  • (14) The serum ornithine carbamoyltransferase in relation to doses of lanthanum, cerium and praseodymium, administered intravenously as chlorides, was investigated.
  • (15) The analysis of the isolated solid complexes has suggested octa- and nona-coordination for praseodymium(III) in fluorinated nucleic bases and fluorinated nucleoside complexes.
  • (16) After intravenous injection of praseodymium nitrate, female Wistar rats develop fatty livers.
  • (17) The aim of this study is to investigate the quality of serum high density lipoprotein content as an index for the severity and time course of liver damage and regeneration following the administration of praseodymium.
  • (18) tris(1,1,1,2,2,3,3-heptafluoro-,7-dimethyl 1-4,6-octanedionato) praseodymium, to trilinolein has been found to induce a difference in the chemical shifts of the absorptions from the acids on the alpha- and beta positions.
  • (19) Intravenous injection of praseodymium nitrate into female Wistar rats results in liver damage.
  • (20) Upon addition of praseodymium ions, the phosphorus signals are shifted downfield.

Words possibly related to "neodymium"

Words possibly related to "praseodymium"