What's the difference between expression and knockdown?

Expression


Definition:

  • (n.) The act of expressing; the act of forcing out by pressure; as, the expression of juices or oils; also, of extorting or eliciting; as, a forcible expression of truth.
  • (n.) The act of declaring or signifying; declaration; utterance; as, an expression of the public will.
  • (n.) Lively or vivid representation of meaning, sentiment, or feeling, etc.; significant and impressive indication, whether by language, appearance, or gesture; that manner or style which gives life and suggestive force to ideas and sentiments; as, he reads with expression; her performance on the piano has expression.
  • (n.) That which is expressed by a countenance, a posture, a work of art, etc.; look, as indicative of thought or feeling.
  • (n.) A form of words in which an idea or sentiment is conveyed; a mode of speech; a phrase; as, a common expression; an odd expression.
  • (n.) The representation of any quantity by its appropriate characters or signs.

Example Sentences:

  • (1) Here we have asked whether protection from blood-borne antigens afforded by the blood-brain barrier is related to the lack of MHC expression.
  • (2) Similar experimental manipulation has yielded in vitro lines established from avian B-cell lymphomas expressing elevated levels of c-myc or v-rel.
  • (3) When micF was cloned into a high-copy-number plasmid it repressed ompF gene expression, whereas when cloned into a low-copy-number plasmid it did not.
  • (4) We also show that proliferation of primary amnion cells is not dependent on a high c-fos expression, suggesting that the function of c-fos is more likely to be associated with other cellular functions in the differentiated amnion cell.
  • (5) Injection of resistant mice with Salmonella typhimurium did not result in the induction of a population of macrophages that expressed I-A continuously.
  • (6) Stimulation is also observed with mixtures of APC expressing DPw3 and APC expressing A1, and likewise, DPw3+ APC become stimulatory when preincubated with supernatants from A1-positive cells.
  • (7) BL6 mouse melanoma cells lack detectable H-2Kb and had low levels of expression of H-2Db Ag.
  • (8) These studies show that metabolic activation is necessary for the expression of the mutagenic activity of aflatoxins B1 and G1 in N. crassa.
  • (9) We also show that the gene of the main capsid protein is expressed from its own promoter in an Escherichia coli strain.
  • (10) Using the oocyte system to express size-fractionated mRNA, we have also determined that the mRNA coding for this protein is between 1.9-2.4 kilobases in length.
  • (11) Because many wnt genes are also expressed in the lung, we have examined whether the wnt family member wnt-2 (irp) plays a role in lung development.
  • (12) A beta-adrenergic receptor cDNA cloned into a eukaryotic expression vector reliably induces high levels of beta-adrenergic receptor expression in 2-12% of COS cell colonies transfected with this plasmid after experimental conditions are optimized.
  • (13) Four other independent LCMV-GP2(275-289) specific H-2Db-restricted CTL clones also expressed V alpha 4 and V beta 10 gene elements.
  • (14) Maximal yields of lipid and aflatoxin were obtained with 30% glucose, whereas mold growth, expressed as dry weight, was maximal when the medium contained 10% glucose.
  • (15) Recent studies have shown that an aberration in platelet-derived growth factor gene expression is unlikely to be a factor in proliferation of smooth-muscle cells.
  • (16) Thus, human bronchial epithelial cells can express the IL-8 gene, with expression in response to the inflammatory mediator TNF regulated mainly at the transcriptional level, and with elements within the 5'-flanking region of the gene that are directly or indirectly modulated by the TNF signal.
  • (17) In concert with TF expressed by monocytes and macrophages this endothelial cell procoagulant activity may play a role in the pathogenesis of thrombotic disease.
  • (18) The possibility that both IL 2 production and IL 2R expression are autonomously activated early in T cell development, before acquisition of the CD3-TcR complex, led us to study the implication of alternative pathways of activation at this ontogenic stage.
  • (19) A domain containing a CA repeat, similar to ones found in other late, cAMP-induced Dictyostelium genes, is required for cAMP-induced and developmental expression.
  • (20) This study examines the role of sex hormones in modulating the expression of autoimmunity in NZB x NZW F1 mice.

Knockdown


Definition:

  • (n.) A felling by a knock, as of a combatant, or of an animal.
  • (a.) Of force sufficient to fell or completely overthrow; as, a knockdown blow; a knockdown argument.

Example Sentences:

  • (1) Subsequent movement off treated papers was a step in the process leading to knockdown.
  • (2) Lamine Koné pounced on a knockdown from Jan Kirchhoff in the penalty area, evaded a tackle and squared for the substitute to prod home from seven yards and prompt scenes of unbridled jubilation in the away end.
  • (3) Charging in at the far post, Touré was a yard out as he applied the final touch from Negredo's knockdown.
  • (4) Knockdown was more marked with rates in excess of 90% and 65% being recorded for respectively 45 and 75 days after treatment.
  • (5) 11.57am BST Government warned: no knockdown sale of RBS Pat McFadden, a Labour MP who serves on the Parliamentary Commission on Banking Standards, issues a clear warning shot to Sajid Javid and the government over RBS.
  • (6) The combatants, well aware of each other’s strengths, were too cagey for that and, but for two knockdowns in the third, it was a contest that never properly took off.
  • (7) He says the Chelsea FC owner took advantage of his political difficulties with Vladimir Putin, forcing him to sell his interests in Russian oil company Sibneft at a knockdown price.
  • (8) The privatisation agency is facing a trade off between doing something that is fair and open and following judicial procedures, or something that is going to deliver needed cash.” He fears Greece could be heading down the path taken by Russia in the 1990s, when valuable state assets were sold at knockdown prices to raise urgently-needed cash, creating a new oligarch class in the process.
  • (9) It was all: two metres tall, powerful, in the middle, knockdowns, second balls, rebounds … but now I see Arsenal and Villarreal and they play like us.
  • (10) Meanwhile their two sons were trying out their own trash-talking skills in this rather bizarre green screen face off (presumably allowing chroma key footage of dinosaurs and car chases to be added in later): Facebook Twitter Pinterest Share Share this post Facebook Twitter Pinterest close Though by the time Mayweather had endured that final bout of dad-dancing at the press conference, even the man who lives for showmanship seemed to have lost his appetite for it: Facebook Twitter Pinterest Share Share this post Facebook Twitter Pinterest close 3.38am BST Kevin is back All those knockdowns in the last fight were probably rather avoidable, as Kevin is quick to point out in his latest missive: The referee in the junior-feather (super-bantam in our argot) fight between Leo Santa Cruz from LA and the old Venezuelan Alexander Munoz was one Vic Drakulich.
  • (11) Moments later Chris Smalling struck a knockdown from Marouane Fellaini – another replacement – at Hart and he saved well.
  • (12) First, the striker crashed home a 31st-minute finish from a Marouane Fellaini knockdown.
  • (13) Both candidate adulticides, Esbiothrin and Bioresmethrin, exhibited quick knockdown 1-h posttreatment.
  • (14) Both mortality and knockdown of exposed flies was demonstrated.
  • (15) "Clearly the BBC does not want to find itself in a knockdown argument with the LSE, universities or the British Academy," said Patten.
  • (16) At a special meeting convened at Bear's 45-floor octagonal midtown office tower, investors nodded through a sale of the cash-strapped company to its rival JP Morgan at a knockdown price of about $1.4bn (£700m).
  • (17) The intervention comes as the Corbyn campaign reveals that a Labour government led by the MP for Islington North would reserve the right to renationalise Royal Bank of Scotland and other public assets, “with either no compensation or with any undervaluation deducted from any compensation for renationalisation” if they are sold at a knockdown price over the next five years.
  • (18) So why doesn't the Taxpayers' Alliance attack the wasted money spent on building council housing, only for the rent that pays for it to be lost when the asset is sold at a knockdown price?
  • (19) Eventually Murdoch offered up his stake in DirecTV at a knockdown price to get rid of his rival's disruptive influence.
  • (20) Typical of their shortcomings at the back was Sunderland's second goal, in which the serially disappointing Kolo Touré kicked at thin air in attempting to clear Michael Turner's headed knockdown.