| 词汇 | example_english_radioactivity |
| 释义 | Examples of radioactivityThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. After incubation for 4 h the precipitates were washed again, transferred to the new tubes and their radioactivity determined. Two aspects of this alteration and the value of radioactivity to advanced life deserve attention, as detailed below. A significant increase in the amount of radioactivity incorporated into the frozen- thawed fraction from the mixed population was evident 6 h after incubation. The results were calculated by expressing the bound radioactivity as a percentage of the total radioactivity. Radioactivity was found in all three intermediates - 3-ketosphingosine, dihydrosphingosine and sphingosine. In the high altitude environment, oxygen and air density decrease, temperature and humidity are low and there is an increase in radioactivity. Phenomena such as collisions, radioactivity and thermodynamics make for novel compositional tools via these sonification methods. At the time stated, samples were taken for cytotoxicity assay and radioactivity determination. Incorporated radioactivity was measured at time-points between 10 and 120 sec. Transport was calculated from counts of decompositions of radioactivity recorded from a scintillation counter ; and expressed as rmoles/108 cells. Nuclear wastes emit heat, although the amount varies according to the nature of the wastes and their radioactivity. Such decreases in efflux of radioactivity in response to tripelennamine were observed in each of five other experiments. Three millilitres of scintillation fluid were added to the void volume and radioactivity measured. Other areas of reduced radioactivity were classified as small lesions. The amount of radioactivity fixed in the tubes was compared with that of control tubes reacted with the antibody alone. Fractions of 300 l were collected and assayed for radioactivity. The total uptake of adenosine was calculated from counts of decompositions of incorporated radioactivity, and expressed as rmoles/108 cells. The embryos were removed, washed, and counted for total radioactivity remaining. Aliquots of the last wash medium were processed similarly to samples and their radioactivity was consistently negligible. Fractions of 1 ml were collected in scintillation vials and aliquots of these solutions were assayed for radioactivity as described above. The film was then removed, the contents of the outer well aspirated, mixed with 4 ml of scintillant, and counted for radioactivity. Intraoperative tumour localisation is carried out searching for the maximal radioactivity by gamma-probe designed for sentinel lymph node localisation. The cellulose was cut into strips and radioactivity determined by scintillation counting. Fractions were collected and assayed for total radioactivity (dpm). Samples precipitating up to twice the radioactivity precipitated by normal control sera were considered negative. No radioactivity was associated with ethanol or acetate, two major catabolites of glucose. On the other hand, the possibility of using non-radioactive tracing elements opens new possibilities for radioactivity-free laboratory diagnostics in medicine and biology. Radioactivity was measured in 250 ml of the organic phase. Again, there was no radioactivity in the immunoprecipitated connexin 36 from any of the assays. The conversion of radioactivity in the different compounds was determined. The respective fractions were dried, and samples measured for radioactivity by liquid scintillation spectrometry as described above. After the paper had dried, the radioactivity was measured using a liquid scintillation counter. Prior to hybridization with the tissue sections, 2xl of radiolabeled probe was placed into 4 ml scintillation fluid and the radioactivity of the probe measured. The bands shown represent the only radioactivity detectable on these two fluorograms. One is to use uncharged molecules whose flux through the pore can be monitored by chemical detection, fluorescence or radioactivity. Protein-bound radioactivity in the supernatant fluids was determined by precipitation of 10 fi\\ samples with 10% (w/v) trichloroacetic acid using 10 /il normal cat serum as carrier protein. Following recovery from the jirds the radioactivity on each worm was determined by gamma counting, the worms were homogenized and electrophoresed, and the dried gels autoradiographed. The numbers shown in parentheses are the numbers of bands obtained by scanning the hybridization membranes along the lanes with a radioactivity scanner and by counting radioactivity peaks. Although neither the mass nor the radioactive peaks of this compound were large, its specific radioactivity was higher than any other labelled amino acid after the incubations. The amount of radioactivity associated with peptides containing each individual varr phosphorylation site was expressed relative to the total radioactivity in all peptides containing varr phosphorylation sites. No increase in radioactivity was detectable, however. Abruptly the efflux of radioactivity decreased. The most common predictive method uses a gamma radiation sensor to estimate the coal depth by exploiting the radioactivity of host strata typically found with coal deposits. By introducing a small amount of radioactivity into the body of primates and human beings, blood flow in different brain regions could be measured by detectors outside the head. They show that in the half year referred to radioactivity in surface drinking water was approximately double that in the corresponding period in 1958. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We might then find out to what extent they have adapted themselves to the different levels of radioactivity at different altitudes. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The guidance on the role of the fire service at incidents involving radioactivity is about to be reviewed. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We are advised that the levels of radioactivity detected were such that there is no good medical reason for further monitoring. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 None of these events resulted in a discharge of radioactivity to the environment. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There have been no accidents involving escape of radioactivity during the transport of spent fuel. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Relating levels of radiation and radioactivity to normal and natural background levels is not always practicable. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 In recent times there has been a greater public concern about the whole issue of radioactivity and its effects on health. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The next argument about radioactivity involves the discharge of effluent. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 I have no evidence which leads me to think that there is danger from radioactivity in these tortoises. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We were told that the amount of radioactivity in surface drinking water this year is double what it was at the same period last year. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The radioactivity would be contained if the submarine sank, as water is the best substance for containing it. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Indeed, that infinitesimal extra amount of radioactivity is, according to the committee, approximately 100,000-fold smaller than the level that occurs naturally in fresh foods. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 No release of radioactivity had occurred and there was no immediate danger to the public or staff. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Much of the public concern is caused by confusion about the general subject of radioactivity. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Clearly, that does not take account of the possible implications of a significant fall-out of radioactivity. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Since this statement, the proposal on permitted radioactivity levels in foodstuffs has been added to the agenda. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We have already found that radioactivity has decreased to 100th of what it was at the time of the accident. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There has not been sufficient study of the other ways in which accumulated radioactivity gets into the body through food chains and accumulates. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The total elimination of radioactivity in discharges from nuclear plants is impossible. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Radioactivity has not yet learnt the validity of international frontiers. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 One letter from a member of the public has been received on the subject of levels of radioactivity in the exercise area. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The standard methods of checking water for radioactivity were to measure the activity of solids obtained by evaporation or precipitation. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Nevertheless, they may retain their radioactivity for many centuries and need to be disposed of well away from people, deep underground or under the seabed. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Most of this waste has a low level of radioactivity. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 They also require sediment samples to be obtained and examined for the presence of polychlorinated biphenyls and radioactivity. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The fresh water drinking supplies which were monitored, were drawn from treated surface water and no radioactivity associated with the tests was detected. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The safety of all radioactive material in transit is ensured by the type of packaging used which varies according to the level of radioactivity involved. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 The material involved is of very low levels of radioactivity, and its use is subject to stringent safety controls. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Measurements of the radioactivity in the atmosphere at various heights show that no danger has existed over these islands from thermo-nuclear explosions. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Surveillance and safety requirements for the remaining structures, containing only relatively small amounts of radioactivity, would then be minimal. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 We are supposed to make a fall-out room to protect ourselves and our families against radioactivity. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Calculations that have been made indicate that there is advantage in allowing radioactivity to decay before decommissioning is undertaken. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 What it has done is to quote a figure for the level of radioactivity in human bone which, if greatly exceeded, would warrant immediate concern. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There are some 5,000 registered sites where processes involving radioactivity occur. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 There is no evidence of increased radioactivity at present. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 More people's lives were shortened through that stress than were ever in danger from radioactivity. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Wastes with an intermediate level of radioactivity can be handled safely using remote tools, cranes or simple shielding. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 Irradiated oxide fuel is stored for a number of years, in most cases in ponds, to reduce the heat and radioactivity before reprocessing takes place. From the Hansard archive Example from the Hansard archive. Contains Parliamentary information licensed under the Open Parliament Licence v3.0 People are anxious at the mention of radiation and radioactivity, so it is right to call for the most stringent requirements on protection measures. From Europarl Parallel Corpus - English The introduction of thresholds for radioactivity is no less important. From Europarl Parallel Corpus - English A background-subtracted image of the radioactivity was then obtained by subtracting the background value for each pixel from the original image. Ironically, the longer radionuclides remain in the stratosphere, the weaker will be the radioactivity when they return to the earth's surface. The amount of gas accumulating was measured by its radioactivity as counted by beta detectors. Transport of adenosine was calculated from counts of decompositions of incorporated radioactivity, and expressed as rmoles/108 cells. Control experiments were performed in the absence of trypanosomes to correct for non-specific binding of radioactivity. No radioactivity was measured, thus indicating that proteins were not retained on the glass fibre filter (results not shown). The recoveries of added radioactivity were between 80% and 90%, and the difference in recovery was insignificant among different stages of oocytes or embryos. The advantage of graphite blanket is to exhibit 1ow activation, and in the case of the accident, released radioactivity is greatly reduced. If all sites had been equally phosphorylated, each would contain 33% of the total radioactivity. The radioactivity in the aqueous phase was measured by liquid scintillation counting. Radioactivity had been discovered at about the same time as the electron. The tumour edges are easily controlled using a gamma-probe while the radioactivity decreases clearly outside the tumour. Proteins were then precipitated so that radioactivity and inorganic sulphate concentration could be determined in the supernatant fraction. There are no serious long-term spent-fuel reprocessing or waste problems nor is there a potential for the large scale release of radioactivity. A large proportion of the radioactivity associated with neutral and acidic metabolites was found not to extract into ether. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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