(n.) That which has only an apparent existence; an apparition; a specter; a phantasm; a sprite; an airy spirit; an ideal image.
Example Sentences:
(1) This is due to changes with energy in the relative backscattered electron fluence between chamber support and phantom materials.
(2) To know the relation between the signal intensity and sodium concentration, sodium concentration--signal intensity curve was obtained using phantoms with various sodium concentrations (0.05-1.0%).
(3) This technique is compared with calculated outline and ring source attenuation correction techniques in a pie phantom.
(4) To evaluate image quality a perspex phantom with image quality test objects was used.
(5) The validity of the response of this probe to Y-90 and its clinical application were assessed with a phantom containing varying activities and with biopsy samples obtained from patients being treated with SIR therapy.
(6) Preliminary heating patterns studied in phantoms indicate the possibility of treating volumes greater than 2000 cm3 within the 50 per cent isotherm.
(7) With the addition of a preservative, the phantom could be used for experiments on heating, without degeneration, for over one year.
(8) Diffusion coefficients measured on images of water and acetone phantoms were consistent with published values.
(9) The incidence of phantom pain and nonpainful phantom sensations was 13.3% and 15.0%, respectively, 3 weeks after mastectomy, 12.7% and 11.8%, respectively, after a year, and 17.4% and 11.8%, respectively, after 6 years.
(10) Phantom studies simulating clinical conditions showed no significant difference in performance at 140 keV.
(11) In addition, normalized organ dose to the breast, active bone marrow, thyroid, eyes, ovaries, and testes were measured in a pediatric anthropomorphic phantom comparing the anteroposterior and posteroanterior projections.
(12) Studies carried out on the phantom have shown how reliable transverse diameter measurements of the pelvis are when carried out by X-Ray scanning pelvimetry compared with conventional X-Ray pelvimetry.
(13) A comparison is made between five irradiation methods, the dose distribution and volume doses of which had been ascertained by means of two phantoms presupposed differently large.
(14) Analysis of the penumbra width of cross dose distributions, as a function of field sizes, allowed us to postulate that the dmax shift could be due to the phantom scattered photons, which in turn were generated by the collimator scattered photons.
(15) The phantom combines an inhalation system which allows for the simulation of xenon buildup or washout in the arterial blood as well as a multisection translatable cylinder in which several sections can be scanned during a preselected protocol to simulate the CT enhancement in brain tissue during a study.
(16) The measurements show that the machine outputs are only slightly dependent on phantom size; the percentage depth dose distributions, however, are strongly dependent on the phantom size, suggesting that machine data for total body irradiations should be measured in phantoms whose dimensions approximate the patient during the total body irradiation.
(17) The Greeks could be delivering an answer to a phantom question.
(18) Quantitative analysis of MR images included fat signal fraction for animals, and relative signal decrease between in-phase and opposed-phase images for phantom and human data.
(19) Relative dose functions for 125I for these phantom media are fitted to second-degree polynomials.
(20) The supplied reference rods were scanned in different positions within the lung fields of the phantom and with varied chest wall thicknesses.
Spectre
Definition:
(n.) Something preternaturally visible; an apparition; a ghost; a phantom.
(n.) The tarsius.
(n.) A stick insect.
(n.) See Specter.
Example Sentences:
(1) This is what President Carter did when he raised the spectre of terminating US military assistance if Israel did not immediately evacuate Lebanon in September 1977.
(2) Ketoconazole does not affect the quality of fatty acids spectre, it changes only the size of the relative distribution of individual fatty acids.
(3) RPC wrote back the next day saying Ashley was in the US and complained that the official had mentioned the prospect of a formal summons for Ashley: “Raising the spectre of a summons, in circumstances where our client has already volunteered the chairman as a witness to assist the committee and we are now liaising over availability, is, in our client’s view, inappropriate.” In the email, RPC said Hellawell was no longer available on 4 March but was now free on 25 March.
(4) So it’s comforting to note that Spectre seems to be offering a significant upgrade: the trailer shows Q introducing Bond to his new ultra-speedy Aston Martin DB10, and promising it boasts a “few tricks”.
(5) On the back of euro exit fears, the spectre of bank runs and capital flight has resurfaced.
(6) The claim has stunned a community who knew him not as a pale spectre in Taliban videos but as the tall, affable young man who served coffee and deftly fended off jokes about Billy Elliot – he did ballet along with karate, fencing, paragliding and mountain biking.
(7) Imran Khan, the cricketer turned politician, hosted the event, where Ridley, who also now does human rights work, said: "I call her the 'grey lady' because she is almost a ghost, a spectre whose cries and screams continue to haunt those who heard her."
(8) Though with the help of the modern radiological investigation methods the proof of a tumour is frequently successful, so in special cases a coordination to organs may make great difficulties also when the total diagnostic spectre is used.
(9) So the question with Spectre is, can they repeat that trick?
(10) The laboratory diagnostic spectre in diseases of the kidneys and the urinary bladder is demonstrated in form of a 3-step-programme.
(11) Photograph: Mondadori via Getty Images Because that decade was scarred by multiple evils, the phrase can be used to conjure up serial spectres.
(12) Philip Newman, research director in precious metals at Thomson Reuters GFMS, said that with the spectre of 1920s hyperinflation haunting Germans, the last two years have seen strong growth in the number of smaller investors buying gold bars and coins.
(13) On Friday, at the end of a week which saw the spectre of bankruptcy loom large over the ancient capital, the Italian government said it had approved a last-minute decree that would give an urgently-needed injection of funds to the city, thus staving off imminent disaster.
(14) Apart from the increasing investigation frequency, a constant dilatation of the diagnostic spectre and improved quality control of structural conditions must be taken into consideration.
(15) They have driven us to the edge of a precipice where we now stand – with the spectre of Syria and Iran before us."
(16) Professor Laura Piddock, of the University of Birmingham's School of Immunity and Infection, called for action to counter the "spectre of untreatable infections".
(17) Cameron also knows that the Commons standards committee met yesterday to decide how severely to admonish a Tory former shadow minister, Patrick Mercer, for breaking parliamentary rules, raising the spectre of more sleaze to come.
(18) Immunoserology and immunohistology are nowadays to be regarded as the most important enrichments in the diagnostic spectre for the differentiation of chronic inflammatory liver diseases.
(19) The latest film sees Bond travel from Mexico to the Sahara desert, Italy and the Austrian Alps in pursuit of SPECTRE – an acronym for Special Executive for Counter-Intelligence, Terrorism, Revenge and Extortion – the sinister organisation intent on world domination.
(20) If commissioners cannot design care pathways free from the spectre of lawsuits from private providers, they will hand over to commercial commissioners prepared to take the rap.