What's the difference between selection and selector?

Selection


Definition:

  • (n.) The act of selecting, or the state of being selected; choice, by preference.
  • (n.) That which is selected; a collection of things chosen; as, a choice selection of books.

Example Sentences:

  • (1) This selective review emphasizes advances in neurochemistry which provide a context for current and future research on neurological and psychiatric disorders encountered in clinical practice.
  • (2) The ability of azelastine to influence antigen-induced contractile responses (Schultz-Dale phenomenon) in isolated tracheal segments of the guinea-pig was investigated and compared with selected antiallergic drugs and inhibitors of arachidonic acid metabolism.
  • (3) Together these results suggest that IVC may operate as a selective activator of calpain both in the cytosol and at the membrane level; in the latter case in synergism with the activation induced by association of the proteinase to the cell membrane.
  • (4) Recently, the validity of the American Thoracic Society (ATS) standards for selection of spirometric test results has been questioned based on the finding of inverse dependence of FEV1 on effort.
  • (5) This death is also dependent on the presence of chloride and is prevented with the non-selective EAA antagonist, kynurenic acid, but is not prevented by QA.
  • (6) Microionophoretically applied excitatory amino acids induced firing of extracellularly recorded single units in a tissue slice preparation of the mouse cochlear nucleus, and the similarly applied antagonist 2-amino-5-phosphonovalerate (2APV) was demonstrated to be a selective N-methyl-D-aspartate (NMDA) receptor antagonist.
  • (7) Immunocytochemistry was used to visualize cytoskeletal structures and to assay selective disruption of neurofilaments by acrylamide.
  • (8) On removal of selective pressure, the His+ phenotype was lost more readily than the Ura+ Trp+ markers, with a corresponding decrease in plasmid copy number.
  • (9) Thus, saponin and ammonium chloride can be used to isolate whole infected erythrocytes, depleted of hemoglobin, by selective disruption of uninfected cells.
  • (10) Rapid overgrowth of all cultures with the E. coli necessitated the use of selective media containing antimicrobial agents to which the E. coli was sensitive.
  • (11) These effects are similar to those reported for AVP and phorbol esters, activators of protein kinase C. Forskolin and isoproterenol, which induce cAMP accumulation, activated extractable topoisomerase II (maximum 5-15 min after treatment), but not topoisomerase I. Permeable cyclic nucleotide analogs dBcAMP and 8BrcGMP selectively activated extractable topoisomerase II and topoisomerase I activities, respectively.
  • (12) Breast reconstruction should not be limited to the requiring patients, but should represent, in selected cases with favourable prognosis, an integrative and complementary procedure of the treatment.
  • (13) A simple method of selective catheterization of the superficial femoral artery (SFA) following antegrade puncture of the common femoral artery is described.
  • (14) These patients had undergone selective and bilateral simultaneous IPS sampling for diagnostic purposes or for neurosurgical indications.
  • (15) A sensitive, selective and easy to use high-performance liquid chromatographic method for the determination of cicletanide, a new diuretic, in plasma, red blood cells, urine and saliva is described.
  • (16) Selective removal of endothelium had no effect on BK-induced contraction or the action of the antagonists.
  • (17) Aside from these characteristic findings of HCC, it was important to reveal the following features for the diagnosis of well differentiated type of small HCC: variable thickening or distortion of trabecular structure in association with nuclear crowding, acinar formation, selective cytoplasmic accumulation of Mallory bodies, nuclear abnormalities consisting of thickening of nucleolus, hepatic cords in close contact with bile ducts or blood vessels, and hepatocytes growing in a fibrous environment.
  • (18) When irradiated circular DNA, previously nicked by T4 endonuclease V, is briefly exposed to elevated temperature, the DAN becomes susceptible to the action of exonuclease V, and pyrimidine dimers are selectively released.
  • (19) Project grants to selected State and local agencies amounted to about $.8 billion.
  • (20) These results provide evidence that trait selection can change gonadotrophin receptor concentration and the dynamics of hormone secretion during the oestrous cycle of the mouse.

Selector


Definition:

  • (n.) One who selects.

Example Sentences:

  • (1) Using consumer survey data from the Missouri Managed Health Care Project, we examined characteristics and use experiences of assignees compared with selectors.
  • (2) The use of this selector creates a possibility of reducing the increase in the synchronizing pulse with respect to the channel pulses and eliminating tuning the transmitter's modulator and receiver's selector to each other.
  • (3) The optimum threshold values for this selector are as follows: 12 ms in the rate and 14 ms in the duration.
  • (4) The members of the main feeding categories (Hofmann, Stewart 1972): concentrate selector, roughage eater and intermediate feeder did not differ much in the ultrastructure of the fundic stomach epithelium but showed greater differences with respect to the height and shape of the glandular tubules and the arrangement of the epithelial cell types.
  • (5) The DNaseI footprint of this protein complex with the enhancer overlapped a sequence, AGGAGGA, found within the binding site for a protein that interacts with the chicken beta globin promoter and enhancer, termed the stage selector element.
  • (6) These results support the selector gene model of development (Garcia-Bellido, 1975) and emphasize that collaboration between polyclones is important in pattern formation.
  • (7) But the East Ender will not compete over the one lap in Daegu, while the runner-up – Shana Cox – only qualifies for a British passport from November of this year and so all three British places are up for grabs as the selectors meet to decide who will travel to South Korea this summer.
  • (8) In Drosophila embryos, anterior-posterior positional identities are set and maintained by the expression boundaries of homeotic selector genes.
  • (9) Use of the full panel to grade all abstracts was very expensive, but it could be replaced, without unacceptable injustice, by dividing the work randomly among groups of three selectors.
  • (10) Using the selector method on serial plastic sections, we determine the number of epithelial or interstitial cells per volume (Nv) of total epithelium or interstitium.
  • (11) So this element is likely to be a target of homeotic genes, which would define the beta 3 tubulin gene as a realisator gene under the control of selector genes.
  • (12) A monitor useful for checks of the energy selector scale of medical electron accelerators was developed and tested.
  • (13) Indeed, c-Jun and c-Fos served as selectors of hormone responsiveness: the composite GRE was inactive in the absence of c-Jun, whereas it conferred a positive glucocorticoid effect in the presence of c-Jun, and a negative glucocorticoid effect in the presence of c-Jun and relatively high levels of c-Fos.
  • (14) The noise immunity of the units can be considerably improved by means of the R-wave selector that discriminates signals by rate and duration of the pulse decay (RS-slope).
  • (15) The homeotic selector gene Deformed (Dfd) is required to specify the identity of head segments during Drosophila development.
  • (16) Two different selectors are described: a simple one for two different pulse widths and a more complicated one with a counter for any setting of pulse width in the system.
  • (17) We show that the eve gene contains a homeo box and hence is related structurally to the pair-rule gene fushi tarazu and to homeotic selector genes.
  • (18) In order to improve synchronization in biotelemetry systems, a relative pulse-width selector was designed.
  • (19) Binding of selector proteins to regulatory DNA sequences is mediated by an evolutionary conserved protein domain, the homeodomain.
  • (20) Advantages of the selectors are compact size, reproducibility of size-selection performance based on the high precision of drill manufacture and use, flexibility in design and layout, and manufacturing ease in a machine shop.