(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.
Plater
Definition:
(n.) One who plates or coats articles with gold or silver; as, a silver plater.
(n.) A machine for calendering paper.
Example Sentences:
(1) Personnel records of over 1000 welders and electricians but only 235 caulkers and 557 platers employed at a shipyard in NE England between 1940 and 1968 were obtained and the mortality followed up to December 1982.
(2) 14 (38%) of 37 chrome platers in 17 chrome electroplating factories surveyed had occupational contact dermatitis, chrome ulcers, or both.
(3) For the SGE method, a spiral plater was used to set up a concentration gradient of an antimicrobial agent within an agar plate across which bacterial strains were inoculated as radial streaks.
(4) Car painters and car platers were compared to car mechanics on Monday before work.
(5) Among specific causes of death, only lung cancer was found to be significantly higher than expected for all platers (16 observed, 8.9 expected; SMR 179; 95% CI 102-290).
(6) This study investigated the effect of HDI and HDI-BT on lung function and included two control groups: (1) car platers, exposed to the same solvents and grinding dust as car painters, but not to isocyanates, and (2) car mechanics (controls), not exposed to the mentioned agents.
(7) The study was limited by the lack of accurate job exposure details, and there was no record of smoking habits, but welders and caulkers showed a higher standardised mortality ratio for all causes, lung cancer, ischaemic heart disease, pneumonia, and accidents than platers and electricians.
(8) Plater and two pals then marched on to the stage in string vests, baggy shorts and false moustaches.
(9) The jazz-loving, heroically cigarette-smoking, Hull City-supporting Plater was a populist all-rounder with more than 300 assorted credits in radio, television, theatre and films (his screenplay for DH Lawrence's The Virgin and the Gypsy, directed by Christopher Miles in 1970, is probably his best) as well as journalism, six novels, broadcasting and teaching.
(10) Platers reported the highest fatigue rates in the shoulder regions during the test.
(11) When asked to define his nationality, Plater's stock response was: "Geordie by birth, Yorkshire by upbringing and now a metropolitan sophisticate."
(12) The SMR for lung cancer of the chromium plater subgroup was highest among those exposed for the shortest period and among those exposed in the most remote calendar years.
(13) Irritant factors are therefore important in the aetiology of contact dermatitis in these chrome platers.
(14) The project was then quickly taken up by the BBC, attracting quality scriptwriters such as Alan Plater and Malcolm Bradbury and the actors Warren Clarke and Colin Buchanan in the lead roles.
(15) plumbers, fitters and platers, 'a' was 0.4, 0.6 and 0.2 respectively.
(16) Plater's agent for many years was the terrifying Peggy Ramsay, whom he memorialised in his Hampstead theatre play, Peggy for You (1999), with Maureen Lipman giving one of her greatest performances, ruling the roost in her St Martin's Lane eyrie with the eccentric hauteur of a mad Russian empress.
(17) The MN frequency in nasal mucosa was not altered in chromium platers, whereas a significant increase (p less than 0.01) in MN was found in 2 out of 3 subjects involved in the accidental EtO leakage and a non-significant increase in MN was found in the group chronically exposed to EtO.
(18) Excessive urinary excretion of beta 2-microglobulin, a specific proximal tubule brush border protein, and retinol-binding protein has been reported among chrome platers and welders.
(19) "This place lives and breathes stories," says Plater.
(20) The point prevalence of white fingers was 42% for the plater category currently exposed with an odds ratio of 85.