(1) The radioprotective action in E. coli ATCC 9637 of ascorbate added to media containing the weak sensitizer, tetracycline (effect described by Pittillo and Lucas (1967)), was found to be dependent on the presence of metal catalysts of the autoxidation of ascorbate.
(2) "If I hadn't scored that goal, I might still have ended up playing in Italy [Platt went on to play for Bari, Juventus and Sampdoria] but, realistically, I'm sure it was the catalyst.
(3) Enzymes are good catalysts in terms of high catalytic and specific activity with ability to function under mild conditions.
(4) The main aim of this brief contribution is to suggest that our understanding of the general principles of osmochemistry may provide useful insights into the type of mechanism by which solute-translocating catalysts work.
(5) Shelby Quast, of Equality Now, said the gathering could be a “tipping point” and act as a catalyst for change, so that girls in the US could finally be protected: “It’s the first time that members of the government are coming around the table to meet with civil society, survivors and members of the diaspora – this is the first step towards putting together a comprehensive action plan to tackling FGM.” Campaigners are calling for the government to look at practical ways that FGM could be wiped out in the United States – such as engaging with paediatricians and other doctors, immigration officers and visa offices.
(6) With different oxidation catalysts most antioxidants and amino acids tested enhanced polymerization.
(7) The high sites' density with basic character, evidenced by use of various probe molecules, is very similar for the two asbestos types (chrysotile and crocidolite) and on the same order as the density encountered in some catalysts.
(8) Fillings were made of Concise composite resin, without applying an intermediary resin (1), after applying the resin layer (2), after diluting the mix with one (3) or two (4) drops of catalyst resin but without an intermediary resin, and after diluting the mix and applying the resin layer (5).
(9) Monoclonal antibodies elicited to haptens that are analogs of the transition state for hydrolysis of carboxylic esters behaved as enzymic catalysts with the appropriate substrates.
(10) Rapid addition of purines and pyrimidines to alpha, beta-unsaturated carbonyl compounds (such as acrolin) is a general phenomenon which does not require an amine catalyst.
(11) Time acts as a catalyst for members to learn to respect and appreciate each other.
(12) The resulting solution is directed into tubes containing a catalyst that is activated by UV light and causes the dissolved CO2 to react with water (H2O) to form methanol (CH3OH).
(13) Manganese therefore acts as a catalyst for the non-enzymatic reaction, but magnesium does not.
(14) When the reaction was done in dimethyl sulfoxide, with 1-methylimidazole as the catalyst, a third compound was observed, and identified as 1,2,4-tri-O-acetyl-3-C-(acetoxymethyl)-3-O-(methylthiomethyl)-D-glycero- tetrito l [3-O-(methylthiomethyl)apiitol tetraacetate] by gas-liquid chromatography and mass spectrometry.
(15) Russell also described the Commonwealth Games as a catalyst but was realistic enough not to claim they immediately changed an area with long, deep-rooted problems, or miraculously roused a poor, generally unhealthy local population into vigorously playing sport.
(16) The device limits the amount of oxygen entering with the sample to a maximum of 2%, which is rapidly removed by reacting with hydrogen in the presence of a palladium catalyst.
(17) The yields of Thf-FU and more especially of Thf2-FU were greatly dependent on the relative amount of SnCl4, and 0.01-0.1 equiv of the catalyst with respect to Me3Si-FU gave the best results.
(18) Some officers close to the case believe George and Allen may have always harboured paedophilic thoughts but Blanchard provided a "catalyst" which encouraged them to act out their fantasies.
(19) Dusan Tadic was introduced at the break and looked a catalyst for a comeback.
(20) These findings may indicate that trace amounts of acidic catalysts remaining after production of IPM are responsible for the toxic effect.
Stimuli
Definition:
(pl. ) of Stimulus
Example Sentences:
(1) Clinical signs of disease developed as early as 15 days after transition to the experimental diets and included impaired vision, decreased response to external stimuli, and abnormal gait.
(2) They retained the ability to make this discrimination when the coloured stimuli were placed against a background bright enough to saturate the rods.3.
(3) We conclude that neuronal activities in the region of the retrofacial nucleus are important both in the integration of stimuli from the central chemoreceptors and in defining the discharge patterns of respiratory neurons.
(4) Substance P, a potent vasodilating peptide, seems to be released from trigeminal nerve endings in response to nervous stimulation and is involved in the transmission of painful stimuli within the periphery.
(5) Their receptive fields comprise a temporally and spatially linear mechanism (center plus antagonistic surround) that responds to relatively low spatial frequency stimuli, and a temporally nonlinear mechanism, coextensive with the linear mechanism, that--though broad in extent--responds best to high spatial-frequency stimuli.
(6) The electrical stimulation of the tail associated to a restraint condition of the rat produces a significant increase of immunoreactive DYN in cervical, thoracic and lumbar segments of spinal cord, therefore indicating a correlative, if not causal, relationship between the spinal dynorphinergic system and aversive stimuli.
(7) In the first, a technique for establishing an effective reinforcer from a range of possible reinforcing stimuli was evaluated.
(8) II, the visual and auditory stimuli were exposed conversely over the habituation- (either stimulus) and the test-periods (both stimuli).
(9) Stimuli presented to this island could be detected and discriminated, although the subject reported he did not see them.
(10) Preliminary rhythmic somatic stimulation has a predominantly facilitating effect on EPs appearing in response to tonal stimuli in the areas A1, S2, S1.
(11) The proportions of one of the warning stimuli, with respect to the total number of trials, were 0.10, 0.30 and 0.50.
(12) The effects of postnatal methyl mercury exposure on the ontogeny of renal and hepatic responsiveness to trophic stimuli were examined.
(13) The stimuli were two simple tones in experiment 1 and two tonal complexes in both experiments 2 and 3.
(14) The effects of noise on information processing in perceptual and memory tasks, as well as time reaction to perceptual stimuli, were investigated in a laboratory experiment.
(15) This factor was named interleukin-8 (IL-8) since it is produced by various kinds of cells in response to inflammatory stimuli including LPS, IL-1 and tumor necrosis factor (TNF) and has pleiotropic effects on T lymphocytes and basophils as well as neutrophils.
(16) In general patients with diarrhoea were more sensitive to stimuli than those with constipation.
(17) Previous experiments using natural stimuli have provided evidence that the VOR is subserved by parallel pathways, including some that are modified during learning and some that are not.
(18) Anti-histamine and anti-serotonin drugs, as well as substances capable of blocking synthesis of prostaglandins or activation of the kinin system, and also atropine, were ineffective in reducing the responses to TsTX or electrical stimuli.
(19) In positive patterning, elemental stimuli, A and B, were presented without an unconditioned stimulus while their compound, AB, was paired with electric shock.
(20) symptoms, bowel habits, normal physical examination, absence of intestinal infections or parasites) b) physiopathological evaluation (hyperactivity of the distal colon, hypersensitivity to stimuli, stress), and c) physiological evaluation of the patient.