(n.) The act or process of percolating, or filtering; filtration; straining. Specifically (Pharm.), the process of exhausting the virtues of a powdered drug by letting a liquid filter slowly through it.
Example Sentences:
(1) As soon as the component with the lower mechanical stability is percolating the powder system, tablet hardness is controlled entirely by this component.
(2) This group consisted of 101 cases of whom 38 underwent semen treatment with Centrifugation on a Discontinuous Percoll Gradient (CDPG) and 63 with Pellet Swim-up (PS); the control group was made up of 31 normospermic patients where the semen was treated by PS.
(3) The attempt to fractionate the testicular cells by centrifugation in the continuous and discontinuous Percoll gradient was undertaken.
(4) The platelet subpopulations were separated with discontinuous gradients of Percoll.
(5) By using Percoll discontinuous density gradient centrifugation, peripheral blood nonphagocytic and nonadherent mononuclear cells were divided into the low and high density fractions for which natural killer (NK) cells and T cells were enriched, respectively.
(6) We conclude that both localized memory and percolation are possible in stimulatory idiotypic networks.
(7) The effect of activated PMN was tested on the motility of Percoll-washed spermatozoa in the presence and absence of reactive oxygen species scavengers or seminal plasma (whole or fractionated).
(8) To cope with this problem, in 27 IVF cycles, sperm selection was performed by centrifugation on discontinuous Percoll density gradient.
(9) Thirdly, the discontinuous percoll density gradient centrifugation was used to separate P. carinii cysts.
(10) Fractionation by Percoll density centrifugation of peripheral blood leucocyte cells, from atopic subjects with seasonal hay fever, unmasked IgE-B cell populations whose individual capacities to synthesize IgE in vitro were obscured in cultures of unfractionated B cells.
(11) Inspection of the cavity margins revealed absence of percolation at the dentin margins.
(12) In general, IEL of satisfactory yield and of good viability were obtained with EDTA treatment of the gut tissues, followed by rapid passages of the resultant cells through nylon-wool columns and centrifugation on two-step Percoll density gradients (45% and 80%).
(13) Basolateral membranes obtained by self-orienting Percoll-gradient centrifugation were treated with 5 mM CaCl2 to minimize the cross-contamination by brush border membranes.
(14) Percoll-purified high density small lymphocytes had little or no migratory capacity under these conditions, requiring a longer incubation time (4 hr) for consistent migration.
(15) Guinea pig marrow cell suspensions were first enriched for megakaryocytes by density equilibrium centrifugation in continuous Percoll density gradients.
(16) Using Percoll density gradient centrifugation, 1,25(OH)2D3 receptors could be localized in the basal cell fraction.
(17) After introduction of erythrocyte targets, there was a 20- to 30-min delay before initiation of phagocytosis that was not observed with monocytes prepared by the standard Percoll-gradient technique.
(18) To accomplish this, blood was obtained from patients with ragweed AR, granulocytes were isolated and fractionated by continuous density Percoll gradients, and the density distribution of these cells was determined after centrifugation.
(19) A cellular compartment from brown adipose tissue (BAT) of newborn rats was isolated by Percoll-density-gradient centrifugation and was shown to proliferate and to undergo adipose conversion in vitro in primary culture.
(20) Collagenase-dispersed cells from human chorion laeve were examined on Percoll gradients.
Seepage
Definition:
(n.) Alt. of Sipage
Example Sentences:
(1) The experiments demonstrate that tissue site perfusion can provide useful access to brain extracellular fluid when suitable controls are incorporated for recovery variation and blood-brain barrier seepage.
(2) The application of the rubber dam made it possible to establish and maintain a surgically clean field of operation and were an effective safeguard against contamination through seepage of saliva.
(3) The mechanism of action of the surgical procedure consists in the formation of a fistulating excretory duct covered up by a scleroconjunctival wall, generally forming a flat seepage cushion.
(4) The truth is, Ukip have taken seats from the Conservatives but all that does is make sure that Labour is in office and what that will mean is ... higher taxes, more borrowing, uncontrolled immigration and welfare.” With all the mainstream parties vulnerable to Ukip’s taunts about them being part of a “political elite”, Thornberry’s tweet touched a particular raw nerve with Labour as Miliband tries to stop the seepage of working-class Labour votes to Ukip.
(5) Sands containing humic substances are proposed for protection of ground water from refuse tip seepage waters which containing heavy metals and organic polluting agents.
(6) It is speculated that the initial elevation of CSF lactate values reflects the systemic response of trauma, and the secondary rise of CSF lactate levels following severe trauma is due to slow seepage of lactate produced by brain tissue into the CSF space.
(7) In contrast, the frequency of daytime stools, the incidence of incontinence, the consistency of the stool, and the development of perineal seepage or skin irritation were not greatly altered by pregnancy or delivery.
(8) Sediments were chosen from sites affected by industrial and municipal effluents and pastoral seepage and runoff.
(9) Increased seepage of plasma proteins across the blood-gas barrier accounted for the elevation of orosomucoid and p-IgA (RCE unchanged).
(10) Petroleum-associated hydrocarbon sources include natural seepage, wastes and effluents from exploration, production and refining at Norman Wells and spills.
(11) This reflected the trend toward drilling deeper wells which are influenced less by nitrate seepage as well as adherence to new and stricter well construction codes.
(12) The clay pots, being porous, also showed a tendency to constant outward seepage of water which, when collected, was also shown to harbour cholera bacilli.
(13) It could decrease significantly the response rate of turning its body induced by acetic acid, increase the pain threshold caused by warm, reduce the surface seepage of injure skin and accelerate the wound recovery.
(14) Statistical evidence suggested that septic tank seepage was partially responsible for nitrate, phosphate, iron and arsenic contamination of shallow water supplies.
(15) It is concluded that silicone prostheses provoke an inflammatory response not only because they act as foreign bodies, but also because of silicone seepage through intact membranes.
(16) BP stops oil leak in Gulf of Mexico for first time since April 19 July Fears about the new cap are raised after engineers detect seepage and a possible methane gas leak on the seabed.
(17) All patients are continent, but eight have occasional episodes of rectal seepage at night.
(18) There were no cases of fecal incontinence or rectal seepage.
(19) Abrasion, or other breaks in the skin, can allow seepage of blood products carrying such pathogens as hepatitis B virus and the human immunodeficiency virus that causes AIDS.
(20) On the other hand it is possible to use sands containing humic substances for cleaning of seepage waters and recovering of anorganic and organic useful materials.