(n.) A white or gray crystalline salt, with a slight alkaline taste, used as a flux, in soldering metals, making enamels, fixing colors on porcelain, and as a soap. It occurs native in certain mineral springs, and is made from the boric acid of hot springs in Tuscany. It was originally obtained from a lake in Thibet, and was sent to Europe under the name of tincal. Borax is a pyroborate or tetraborate of sodium, Na2B4O7.10H2O.
Example Sentences:
(1) The relation of respiratory symptoms, pulmonary function, and abnormalities of chest radiographs to estimated exposures of borax dust has been investigated in a cross sectional study of 629 actively employed borax workers.
(2) In the borax zone the pH is increased compared with the pH of the mobile phase, and when omeprazole (a weak acid) is co-eluting in the borax zone its retention is affected.
(3) We found that in certain buffers, such as tris(hydroxymethyl)-aminomethane-hydrochloride, boric acid-borax, and N-hydroxyethyl piperazine-N'-2-ethanesulfonic acid-sodium hydroxide, hemoglobins released from erythrocytes were easily precipitated by addition of Zn2+, thus resulting in a false inhibition of hemolysin by Zn2+ when hemolysis was assayed by measuring absorbance at 540 nm of released hemoglobins.
(4) Myelin staining was achieved with Harris' hematoxylin when sections were delipidized and were differentiated in either acid-formalin or borax-ferricyanide.
(5) Crude borax ore and kernite ore induced weak transformation that was not dose-dependent and was not reproducible in another experiment.
(6) Laboratory bioassays with Culicoides variipennis larvae from Borax Lake, CA, indicated an LC90 of 16.8 ppb for pyrethrins at 23 degrees C. A field test in a pond adjoining the lake reduced adult C. variipennis emergence greater than 99% for over 30 days after treatment at a rate of 131 ppb pyrethrins.
(7) In the first case we used Bathurin in combination with borax at a concentration of 1.3% for both substances.
(8) Hepatitis B surface antigen (HBSAg) adsorbed from sera onto colloidal silica could be completely eluted through the use of 0.25% sodium deoxycholate in 0.01 M borax, pH 9.3, at 56 degrees C. The HBSAg recovered in the eluate represented 100% of that present in the original serum, and it was contaminated by only trace amounts of serum proteins (in decreasing amounts: beta-lipoprotein, immunoglobulin G, albumin).
(9) The size of the zone varies with the concentration of borax in the sample injected.
(10) By using of dehydration borax as purification agent during melting alloy was illustrated.
(11) Microheterogeneity of human serum albumin was studied by isoelectric focussing in ampholines and the borax-borate buffer-mannite system within the pH range 4.0--6.0 and by fractional precipitation in 3 M KCl.
(12) Dibucaine was dispersed in the gel which was prepared by gelation of the konjac flour in a borax solution at 60 degrees.
(13) To overcome these deficiencies, 3 changes in the method were made: (1) the defatting step was modified to use sodium lauryl sulfate in combination with borax for better defatting; (2) 40% isopropanol was substituted for 60% ethanol as the aqueous phase for cleaner papers; and (3) mineral oil was substituted for n-heptane to improve hair recoveries.
(14) Borax dust appears to act as a simple respiratory irritant and perhaps causes small changes in the FEV1 among smokers who are heavily exposed.
(15) Amongst the traditional medicines, it was noticed that sodium tetraborate (borax) and alum reduced appreciably the fluid requirement in many cases of acute childhood diarrhoea.
(16) pills" (with borax, methanol and cocaine) were delivered freely at the chemist's shop.
(17) A method is described, which is based on mordantings with a silver nitrate solution then with a borax solution and on an physical development.
(18) Flocculation from a homogenate previously clarified by the use of borax is best suited for large-scale operation.
(19) During the course of investigation of two infants with seizure disorders it was discovered that both had been given large amounts of a preparation of borax and honey which resulted in chronic borate intoxication.
(20) DYBH-bait formulations with about 17 per cent borax are very attractive and have a good effectivity.
Flux
Definition:
(n.) The act of flowing; a continuous moving on or passing by, as of a flowing stream; constant succession; change.
(n.) The setting in of the tide toward the shore, -- the ebb being called the reflux.
(n.) The state of being liquid through heat; fusion.
(n.) Any substance or mixture used to promote the fusion of metals or minerals, as alkalies, borax, lime, fluorite.
(n.) A fluid discharge from the bowels or other part; especially, an excessive and morbid discharge; as, the bloody flux or dysentery. See Bloody flux.
(n.) The matter thus discharged.
(n.) The quantity of a fluid that crosses a unit area of a given surface in a unit of time.
(n.) Flowing; unstable; inconstant; variable.
(v. t.) To affect, or bring to a certain state, by flux.
(v. t.) To cause to become fluid; to fuse.
(v. t.) To cause a discharge from; to purge.
Example Sentences:
(1) It is concluded that amlodipine reduces myocardial ischemic injury by mechanism(s) that may involve a reduction in myocardial oxygen demand as well as by positively influencing transmembrane Ca2+ fluxes during ischemia and reperfusion.
(2) The main finding of this study is that diabetic adolescents with a high erythrocyte Na,Li countertransport rate have an arterial pressure significantly higher than patients with normal Na,Li countertransport fluxes.
(3) The role of adrenergic agents in augmenting proximal tubular salt and water flux, was studied in a preparation of freshly isolated rabbit renal proximal tubular cells in suspension.
(4) The effect of the peptides on carbachol-induced 22Na+ flux into BC3H-1 cells, which contain nicotinic acetylcholine receptors on their surfaces, was measured.
(5) Previous evidence includes changes in Ca2+ fluxes and intracellular activity, membrane potential changes, and effects of ion-channel blockers.
(6) The inhibition by DCMU of palmitoylcarnitine oxidation by isolated liver mitochondria was used to calculate a flux control coefficient of the respiratory chain towards gluconeogenesis.
(7) Under anaerobic conditions, glycolytic flux was decreased but this did not appear to be the result of inhibition of phosphofructokinase, since the concentrations of both substrates, fructose 6-phosphate and ATP, were decreased.
(8) By contrast, there was a rapid exchange of tracer Leu carbon between placenta and fetus resulting in a significant flux of labeled KIC from placenta to fetus.
(9) The current work utilizes an empirical relationship between HbO2 saturation measurements and reflected light oximetry, which is consistent with the two-flux theory of Kubelka and Munk (Z.
(10) The proportion of L-tryptophan metabolized via the latter flux increased over 10-fold (75% of total tryptophan metabolized) as the concentration of L-tryptophan was raised from 5 x 10(-5) to 5 x 10(-4) M. L-Tryptophan metabolized via the kynureninase flux was less than 5% of total tryptophan metabolized.
(11) The momentum flux theory describes such phenomena most appropriately.
(12) A state of net secretory fluid flux was induced in isolated jejunal loops in weanling pigs by adding theophylline or cholera toxin to the lumen of the isolated loops.
(13) The unidirectional Cl- fluxes may have significant contributions from both the transcellular and paracellular pathways, with the direction of departure from predicted values being consistent with the presence of Cl- exchange diffusion.
(14) cAMP decreased the incorporation of choline into phosphatidylcholine, but did not change the flux of metabolites through the step catalyzed by CTP:phosphocholine cytidylyltransferase.
(15) This was apparent by standard flux techniques only in low (65 mM) Na solutions, but was readily discernible in normal Na (125 mM) with the "lanthanum-residual" technique.
(16) But prealbumin-2, which has lower affinity towards thyroxine, participates mainly in a rapid flux of the free thyroxine pool.
(17) In the patients with aplastic anaemia the iron flux was diminished, but never eliminated, demonstrating that the exchangeable compartment was not solely erythroblastic, but included non-erythroid transferrin receptors.
(18) Outward Na+ cotransport fluxes significantly rose (p less than 0.05) after acetate hemodialysis and decreased (p less than 0.05) after bicarbonate hemodialysis.
(19) This "flux inhibition" was found to depend upon the velocity and the duration of water flow from mucosa to the serosa.
(20) In the microsac preparation, the PKC activators (-)-7-octylindolactam V and PMA inhibited the sustained phase of 36Cl- flux without altering the transient phase.