What's the difference between gold and placer?

Gold


Definition:

  • (n.) Alt. of Goolde
  • (v. t.) A metallic element, constituting the most precious metal used as a common commercial medium of exchange. It has a characteristic yellow color, is one of the heaviest substances known (specific gravity 19.32), is soft, and very malleable and ductile. It is quite unalterable by heat, moisture, and most corrosive agents, and therefore well suited for its use in coin and jewelry. Symbol Au (Aurum). Atomic weight 196.7.
  • (v. t.) Money; riches; wealth.
  • (v. t.) A yellow color, like that of the metal; as, a flower tipped with gold.
  • (v. t.) Figuratively, something precious or pure; as, hearts of gold.

Example Sentences:

  • (1) To investigate the relationship between Helicobacter pylori infection and nonsteroidal anti-inflammatory drug (NSAID) intolerance and the effect of gold use on the seroprevalence of H. pylori.
  • (2) This activity scheme uses as its base, dose potency measured as TD50, the chronic dose rate that actuarially halves the adjusted percentage of tumor-free animals at the end of the study (Gold et al., Environ.
  • (3) Coup leader Captain Amadou Sanogo on Friday pleaded for foreign help to preserve the territorial integrity of the former French colony, a major gold and cotton producer.
  • (4) A combined plot of all results from the four separate papers, which is ordered alphabetically by chemical, is available from L. S. Gold, in printed form or on computer tape or diskette.
  • (5) To determine the nature of the electrochemical treatment on the gold substrate, cyclic voltammetry was performed with various chemical solutions.
  • (6) As Russian companies Polymetal, Polyus Gold and Evraz race to join Eurasian Natural Resources as FTSE100 companies, despite their murky practices, because of London's incredibly lax listing requirements, one future scenario is becoming clearer.
  • (7) Injection of albumin-colloidal gold conjugates resulted in an insignificant uptake.
  • (8) IgG-gold also adhered to M cells and excess unlabeled IgG inhibited IgA-gold binding; thus binding was not isotype-specific.
  • (9) Colloidal gold immuno-electron microscopy is a powerful tool for defining antigenicity at the subcellular level.
  • (10) The effects of gold thioglucose loading on Se distribution, and on Se-dependent GSH peroxidase and GSH S-transferase, were examined in rats fed three dietary levels of Se (0, 0.2, and 2.0 ppm), and with or without adjuvant-induced inflammation.
  • (11) The night's special award went to armed forces broadcaster, BFBS Radio, while long-standing BBC radio DJ Trevor Nelson received the top prize of the night, the gold award.
  • (12) The sectioned worm tissues from each developmental stage were embedded in Lowicryl HM 20 medium, stained with infected serum IgG and protein A gold complex (particle size: 12 nm) and observed by electron microscopy.
  • (13) We concluded that gold labeling with polymyxin B is useful in localizing the binding sites of polymyxin.
  • (14) Heads you 'own it' Ian Read, the Scottish-born accountant who runs the biggest drug firm in the US carries in his pocket a special gold coin, about the size and weight of a £2 piece.
  • (15) Evidence for Golgi apparatus-associated processing of oligosaccharides in the ER was obtained by lectin-gold cytochemistry revealing the presence of the galactose (beta 1----4)N-acetylglucosamine sequence and sialic acid residues.
  • (16) One of them got a gold medal in medicine, for being top of the year, but they dropped out for exactly these reasons.” These are not alarmist stories being spread by campaigners.
  • (17) Different techniques for attaching the gold cylinders to the frameworks were used.
  • (18) A post-embedding cytochemical technique using WGA-gold complexes was used and the quantitative intensity of WGA-labeling on the surface membrane of platelets after convulxin stimulation was determined.
  • (19) Only 75% of the granules stained for PRL by the protein-A gold technique; the other 25% stained for neither PRL nor GH.
  • (20) Smoking behaviour, self-reported mood and cardiac activity were examined in 12 "sedative" and 12 "stimulant" smokers, defined using Mangan and Golding's questionnaire.

Placer


Definition:

  • (n.) One who places or sets.
  • (n.) A deposit of earth, sand, or gravel, containing valuable mineral in particles, especially by the side of a river, or in the bed of a mountain torrent.

Example Sentences:

  • (1) Placers were both the most advantaged socioeconomically and held the most positive attitudes toward adoption, while young women who never considered adoption were the least advantaged and held the least favorable attitudes.
  • (2) They were reached as placers of sadomasochistic contact advertisements or as members of sadomasochistic clubs.
  • (3) Total and total recoverable copper concentrations reported in five Alaskan streams with active placer mines were higher than the acutely toxic concentrations, either individually or in mixtures, that the authors found to be acutely toxic to Arctic grayling and coho salmon from Alaska.
  • (4) Using FACES II as the measure of family cohesion and adaptability, it was hypothesized that: (1) adolescent parents or placers would describe their families as being less functional than adolescent norms, (2) adolescents who placed their children for adoption would describe their families as being more functional than adolescents who parented their children, and (3) adolescents from the more functional families would report greater satisfaction with the placement decision than those from less functional families.
  • (5) Using FACES II as the measure of family cohesion and adaptability, it was hypothesized the: 1) adolescent parents or placers would describe their families as being less functional than adolescent norms; 2) adolescents who placed their children for adoption would describe their families as being more functional than adolescents who parented their children; and 3) adolescents from the more functional families would report greater satisfaction with the placement decision than those from less functional families.
  • (6) However, caution should be used when comparing our results obtained in "clear" water to field situations, because speciation and toxicity of these inorganics may be altered in the presence of sediments suspended by placer mining activities.
  • (7) Results indicate that Hypothesis 1 was supported, but contrary to Hypothesis 2, there were no significant differences in family functioning between placers and parents.
  • (8) Based on the results of the present study, estimated no-effect concentrations of arsenic and mercury, but not cadmium, chromium, gold, nickel, selenium, or silver, are close to their concentrations reported in streams with active placer mines in Alaska.
  • (9) Adolescents who placed their babies had significantly lower scores on the role-reversal measure, but the differences between keepers and placers on the expectations, empathy, and corporal punishment dimensions were not significant.
  • (10) The acute toxicity of nine inorganics associated with placer mining sediments to early life stages of Arctic grayling (Thymallus arcticus), coho salmon (Oncorhynchus kisutch), and rainbow trout (O. mykiss) was determined in soft water (hardness, 41 mg liter-1 CaCO3) at 12 degrees C. The relative toxicities of the inorganics varied by four orders of magnitude; from most toxic to least toxic, the rank order was cadmium, silver, mercury, nickel, gold, arsenite, selenite, selenate, and hexavalent chromium.
  • (11) Placers consistently reported that their choice to place their babies rather than parent would increase the likelihood of outcomes such as continuing with school, having enough money to live comfortably and benefiting the baby's emotional development, while those young women who did not consider adoption tended to feel that these outcomes would be more likely if they parented, or that the likelihood of the outcomes would not be affected by their choice.
  • (12) The level of family or origin functioning of adolescent parents and placers is even less frequently studied.
  • (13) The level of family of origin functioning of adolescent parents and placers is even less frequently studied.
  • (14) Thus, arsenic (as arsenite(III)) and mercury may pose a hazard to Arctic grayling and coho salmon in Alaskan streams with active placer mines.
  • (15) In tests with environmentally relevant mixtures (based on ratios of concentrations measured in streams with placer mining) of these four inorganics, copper was identified as the major toxic component because it accounted for greater than or equal to 97% of the summed toxic units of the mixture, and an equitoxic mixture of these inorganics showed less-than-additive toxicity.
  • (16) For the most captivating of second-placers the challenge now is simply to make their excellence count in more tangible ways.
  • (17) The acute toxicities of four trace inorganics associated with placer mining were determined, individually and in environmentally relevant mixtures, to early life stages of Arctic grayling (Thymallus arcticus) from Alaska and Montana, coho salmon (Oncorhynchus kisutch) from Alaska and Washington, and rainbow trout (Oncorhynchus mykiss) from Montana.

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