(1) Media made hyperosmotic with sucrose increase the frequency of spontaneously released quanta of transmitter, or miniature excitatory postsynaptic potentials (MEPSPs).
(2) Using a model based on airborne transmission, it is estimated that the index patient was producing 144 units of infection (quanta) per minute while in the office.
(3) In contrast to the photosensitivity of ribosome-bound 16S rRNA toward chain breakage, free 16S rRNA seems to be resistant toward photoinduced chain breakage at doses of incident 253.7-nm radiation up to at least 10(21) quanta.
(4) Under normal conditions the amount of maximal facilitation was different for separate EEG quanta and varied from 1.4 to 2.4.
(5) The threshold for light detection is estimated to be the same for both species when specified in quanta incident on the retina.4.
(6) Nifedipine was also found to activate protein kinase C, which in turn induces an increase in the nifedipine-resistant presynaptic Ca2+ influx and in the number of released ACh quanta.
(7) Incubation of rat muscle in the presence of 0.1 mM-monoethylcholine (MECh) and 40 mM-K+ for 60-90 min produced a maximal reduction in the time constant of decay of synaptic currents and potentials, indicating that acetylcholine (ACh) had been replaced by AMECh in the released quanta.
(8) These results were confirmed by analysis of inhibitory quanta in embryonic and adult Mauthner cells involving a small and large number of channels, respectively.
(9) Our measurement procedures were tested using computer-generated 'e.p.c.s' containing randomly occurring 'quanta'.
(10) The data are interpreted that for a given epithelial area there is a periodic build-up of spermatogonia which then produce several successive quanta of spermatocytes and when the spermatogonia are depleted the process repeats.
(11) The co-localization makes it likely that such changes lead to a different relative composition of the secretory quanta of chromaffin granules.
(12) The effect of 4-aminopyridine and tetraethylammonium on the time course of neurotransmitter release was examined at the neuromuscular junction using a computer-aided method which directly measured the time of occurrence of individual quanta.
(13) Let the light-quanta be absorbed in the retina according to a Poisson process.
(14) Furthermore, modulation of transmission proudced by variation in the presynaptic resting potential and during presynaptic inhibition results from changes in the mean number of quanta released by each impulse.
(15) When such thresholds and the intensities of the background lights are expressed in terms of the number of quanta absorbed per unit time, it is found that three factors can be correlated with the thresholds measured in various states of light- and dark-adaptation: (i) the intensity of a steady background, (ii) the rate of regeneration of rhodopsin, and (iii) the amount of metarhodopsin II present in the rods.3.
(16) The paper is concerned with the results of a comparative study of radiation injury of chromosomes of human lymphocytes at the G0 stage resulting from the influence of 60Co gamma quanta and high activity 252Cf radiation sources and depending on a dose and dose rate; with the potentialities of modifying a cytogenetic effect of irradiation by postradiation hyperthermia of cells.
(17) This suggests that large quanta are formed by adding additional ACh to preformed quanta shortly before they are available for release.
(18) A mechanism by which NH stretching quanta are coherently transported along a chain of hydrogen bonded peptide groups is demonstrated by classical simulation of a section of the alpha-helical peptide poly(L-alanine).
(19) Intracellular recordings from single muscle fibres showed that the duration of synaptic currents was longer than in most other vertebrates so far studied and that the number of transmitter 'quanta' released by a single nerve impulse, about 20, was lower, probably reflecting the small size of the presynaptic terminals.
(20) Statistical analysis suggests that the changes in the average numbers of quanta released (m) could be attributed to the change in the immediately available store (n).
Quota
Definition:
(n.) A proportional part or share; the share or proportion assigned to each in a division.
Example Sentences:
(1) A recent UN study ranked Brazil 116th out of 143 countries in terms of the proportion of women in the national legislature and efforts to remedy this with a quota system – such as those adopted by neighbouring Argentina and Bolivia – have made little headway, despite Suplicy's heavy campaigning.
(2) Despite a new quota system demanding that the largest members send one woman for every four men, just 17% of the 2,500 delegates are female.
(3) Two weeks ago, the production quotas for all colony brigades was arbitrarily increased by 50 units.
(4) In the method of blood taking without previous desinfection of the skin the quota of positive blood cultures increased by the twofold to threefold per culture and test person (5.7 to 18.8% and 11.3 to 26.3%, respectively).
(5) A representative sample of 400 people, using quota sampling in 40 randomly selected electoral wards, completed a schedule structured part self administered questionnaire.
(6) This good quota at the beginning of the group sessions can be explained of this high acceptance rate appears to be a direct result of the group meetings.
(7) Theymake up 77% of the UK's fishing boats, but only get 4% of the fishing quota.
(8) 21 ringed fibres were found, raises the quota to 6.7%.
(9) Germany and France have adopted a joint position, criticising but not rejecting the commission’s quota scheme while setting conditions such as the freezing of visa waiver schemes for the countries of the Balkans, and insisting that Italy fingerprint and register all new arrivals to keep them from travelling north to other EU countries.
(10) I think there are issues in the fishing industry with quotas, but those are things that can be negotiated.
(11) Germany and France demand binding refugee quotas for EU members Read more “Those arriving have been raised in another religion and represent a radically different culture.
(12) Ofcom has already moved to allow more regional hubs for local commercial radio, relax local programming quotas, and encourage digital stations.
(13) The increase of the protein quota as well as that attained by means of introducing in the diet of soybean protein isolate reduces the therapeutic effect of the diet on hemostasis.
(14) To check on impressionistic assertions that the United States is becoming an "age-irrelevant society," a quota sample of white-collar and blue-collar men and women (ages eighteen to seventy; N = 462) was studied with a questionnaire that asked for designation of the most suitable ages for various role transitions and age-related attributes.
(15) She had made her daily quota of cash needed to pay her bills.
(16) But according to those at the Brussels conference, quotas work.
(17) It also indicates that there is considerable value in production research which gives more precise knowledge of production systems, thus allowing producers to respond optimally to quota cuts.
(18) The 14-member committee – whose only woman is Northampton MP Sally Keeble – stopped short of calling for quotas on female board representation in financial firms or for legal changes to boost the profile of women in the City.
(19) Rightly, they have concerns over maintaining the integrity of affirmative action quotas.
(20) For weeks EU governments have been embroiled in a battle over commission demands to ease Italy’s burden by creating a new quotas system sharing asylum-seekers across the union.