(n.) Fine, dry particles of earth or other matter, so comminuted that they may be raised and wafted by the wind; that which is crumbled too minute portions; fine powder; as, clouds of dust; bone dust.
(n.) A single particle of earth or other matter.
(n.) The earth, as the resting place of the dead.
(n.) The earthy remains of bodies once alive; the remains of the human body.
(n.) Figuratively, a worthless thing.
(n.) Figuratively, a low or mean condition.
(n.) Gold dust
(n.) Coined money; cash.
(v. t.) To free from dust; to brush, wipe, or sweep away dust from; as, to dust a table or a floor.
(v. t.) To sprinkle with dust.
(v. t.) To reduce to a fine powder; to levigate.
Example Sentences:
(1) The antigenic composition of an extract of rat dust, as a source of aeroallergens for rat-sensitive individuals, has been investigated and compared to the antigenic composition of rat saliva and urine.
(2) At the end of the dusting period those animals treated with normally charged dust had significantly more chrysotile retained in their lungs than animals exposed to discharged dust.
(3) Differences between mean durations of dust exposure of workers with radiographic signs of lung fibrosis and those without such signs were statistically insignificant.
(4) Where the guanine content was more than or equal to 0.25% in the dry dust, mite numbers were higher than 10 mites per 0.1 g dust in 43 of the 44 samples.
(5) The contents of hexavalent chromium, Cr(VI), in grinding dust were undetectable.
(6) The results of pathohistologic investigations are objectively demonstrated through a chart of morphological traits, thus facilitating the identification of the diagnostical morphological traits caused by different industrial dusts.
(7) A clinical investigation was made between workers exposed to dried sewage sludge dust and age matched controls not exposed.
(8) The median exposure of total dust was well below the Swedish threshold value, and the exposure of mould and bacteria was also low.
(9) Mattress dusts from the beds of 51 asthmatic children with positive skin tests to house dust mite were assayed for Der p I, Fel d I and certain viable fungi.
(10) According to the quantitative analysis between threshold titers of skin test and RAST titers using house dust and HD mites allergens, specific IgE production shall be decreased in the patients over 40 years old.
(11) Both the observance of occupational limit-values for dusts and other harmful materials at the work place, which have effects on the respiration system, and the medical survey of workers with the use of special methods for examination of respiratory system are necessary.
(12) Further, investigation of electrokinetic properties of these dusts by electrophoretic quasielastic light scattering is described.
(13) We have recently demonstrated in vitro a potential biological mechanism which could occur in vivo upon inhaling airborne graon dust, thereby constituting a potential inflammatory insult to the respiratory tracts of grain workers.
(14) After allowance for the fact that regression analyses suggested that the proportion of tremolite in dust was probably 2.5 times higher in Thetford Mines, Quebec, than in Charleston, the results from both matched pair and stratification analyses of tremolite fibre concentrations in lung were almost the same as for chrysotile.
(15) In vitro exposure of macrophages and neutrophils to inorganic dusts can enhance their oxidative metabolism, however the effects of inorganic dust inhalation on lung-inflammatory cell-oxidative metabolism remain unknown.
(16) Fifty asthmatics, candidates for hyposensitization with the house dust mite Dermatophagoides pteronyssinus (Dp), went through a series of allergy tests to evaluate the sensitivity of different organs to Dp.
(17) Specified cytotoxicity and mutagenicity of coal dust extract (mixture of solvent extractions of bituminous coal nitrosated by NaNO2) were investigated because of the association of an excess risk of gastric cancer in coal miners.
(18) History is littered with examples of byelection sensations that soon turned to dust.
(19) Inhalant allergens as mite house dust, animal danders, pollens, molds and food allergens are considered, now, to be the most sensitizing agents.
(20) Water from the reactors that were the source of Sonoda's drink is being used to spray trees to limit the buildup of dust and prevent fires.
Sawdust
Definition:
(n.) Dust or small fragments of wood (or of stone, etc.) made by the cutting of a saw.
Example Sentences:
(1) In 70% of cases the osseous adhesion is formed at the level of disks which demineralized osseous sawdust was introduced to (adhesion was formed, mainly, as perifocal osseous stratifications).
(2) In 4 series of experiments a dependence between 3,4-benzpyrene (BP) output and the temperature of fir sawdust pyrolysis under isothermic conditions has been investigated.
(3) Non-guinea pig-derived extracts such as the hay, sawdust and diet had negligible activity in skin testing and RAST inhibition; and preparations of Dermatophagoides pteronyssinus, house dust and rat dust did not inhibit the RAST for guinea pig room dust.
(4) In experiments carried out with beech sawdust treated with 0.1 M of sulphuric acid a digestibility of 3.7% was found, in sawdust treated with 0.47 M of nitric acid a digestibility of 61.6% was found and after a neutralization with ammonia it amounted to 72.2%.
(5) Sawdust from radiata pine trees which are grown extensively throughout South Australia causes various forms of contact dermatitis.
(6) Mixed cultures which contained sulfate-reducing bacteria reduced sulfate at pH 3.0 in the laboratory with sawdust as the only nutrient.
(7) An atopic patient with adult onset of asthma due to sawdust from redwood (Sequoia sempervirens) is described.
(8) Lesions to 30 brain sites produced deficient performance on the sawdust-digging problem.
(9) On each day, after the assessment of spirometry and PC20, subjects underwent exposure to sawdust or sham exposure.
(10) Two patients with occupational asthma due to California redwood (Sequoia sempervirens) sawdust are described.
(11) On Saturday morning, blood still stained the street outside despite police attempt to to cover it with sawdust.
(12) A dual asthmatic reaction was induced during the following days by exposing the subject to red-cedar sawdust for 30 minutes and plicatic acid for 7 minutes.
(13) Total time required for larval and pupal development in Ephestia kühniella Z. was significantly modified when habitable space of the food mass was increased by dilution with a nontoxic sawdust.
(14) sawdust plus chicken dung proved an excellent breeding medium.
(15) Formation of extracellular xylanase was studied in 10 strains of wood-destroying fungi belonging to Basidiomycetes during their submerged cultivation with willow sawdust.
(16) An experiment was treated to investigate the effects of an extract of conditioned beech sawdust (80% methanol extraction) on the in vitro digestion of cellulose and on the digestion of hay and wheat bran diet (80 to 20%) in a artificial rumen (Rusitec).
(17) The experiments were confined to the effects of the addition of different sources of carbon (glucose, wheat straw, and sawdust) on the microbial activities in soils: loamy sand, loam and saline clay were used.
(18) Stimuli provided were intrabronchially injected purified protein derivative in sensitized rats and dust inhaled from sawdust used as bedding in the cages.
(19) Both intrabronchially injected purified protein derivative and stimuli inhaled from sawdust were found to aggravate lung allograft rejection, thus shortening mean graft survival from 32 to 11 days.
(20) Wethers were fed complete granular feed rations including 41.81% of grass hay, 25.28% of barley, 15.37% of sawdust, 14.98% of molasses, 1.32% of urea, and 1.24% of mineral supplement in dry matter for 24 weeks.