(n.) The act of becoming visible; appearance; visibility.
(n.) The thing appearing; a visible object; a form.
(n.) An unexpected, wonderful, or preternatural appearance; a ghost; a specter; a phantom.
(n.) The first appearance of a star or other luminary after having been invisible or obscured; -- opposed to occultation.
Example Sentences:
(1) So Richard arose as himself again, a dreadful apparition cavorting.
(2) It seems to be very likely that the apparition of these secondary tumors is due to the failure of the shole defence systems of the body, favoured by the relative long survical of these patients and the surgical opening of the brain envelops.
(3) (ii) The male liver, offering, an ideal experimental control of "zero" background, we followed-in the liver of male trout--the kinetics of induction of Vg mRNA by hybridization with Vg cDNA, after E2 stimulation, and (iii) the apparition of Vg in the serum by using an original rocket immuno-electrophoretic technique.
(4) The apparition of cyclosporine, immunodepressive drug, has largely improved the organ transplantations.
(5) The BLEL could be considered as the pseudotumoral form of an isolated GS which could be completed after many years with the apparition of auto anti-bodies.
(6) All these factors influence the apparition of adjustment difficulties or disorders.
(7) The diminution of NK activity during the preleukemic period could favour preleukemic cells apparition.
(8) When H antigen is absent on the O red blood cells, there is no apparition of new I and i antigenic sites.
(9) Furthermore, several points deserve attention such as apparition of teeth (21 weeks), calcaneum (24 weeks).
(10) We report a case in which the late apparition of arterial hypertension expressed as an acute aortic coarctation syndrome pointed out the diagnosis.
(11) The phantom kidney is a "kidney-like" apparition which may be seen in dynamic renal scintigraphy typically in post-nephrectomy patients or in patients with unilateral renal agenesis.
(12) A correlation between the ovary stages and apparition, number and ultrastructural aspects (paracrystalline arrangement) of the inclusions is established.
(13) The time of apparition of the first outline, as a derivative of the roof of the third ventricle, was fixed at 3 days.
(14) Signs suggestive of thrombosis were inconsistant and the diagnosis was made on the association of severl of the following features: -- systemic embolism (44%); -- radiographic signs of left ventricular failure (51%); -- absence of opening click, variable A2 -- opening click intervals, apparition or aggravation of a systolic regurgitant murmur or a distolic murmur suggestive of obstruction on the phonocardiogramme; -- delayed opening of the mobile component or the presence of abnormal echos between the ball and anterior cage echo on the echocardiogramme; -- a gradient of over 12 mmHg across the prosthesis.
(15) Among these factors, straw bedding quantity seems to be the more important one: a low quantity of straw, even in herds where prophylaxis against mastitis is largely used (teat dipping, dry cow therapy, disinfection), is a favouring factor for apparition of mastitis just after calving.
(16) The absence of ER in normal skin appendages suggests that its apparition is a feature of specialized differentiation of breast epithelium.
(17) After the apparition of bulbar signs ans cachexia she died at 45.
(18) With early detection, new therapies for the prevention of the disease could be experimented on the higher risk women before the apparition of clinical symptoms or signs.
(19) The hyoid bone plays a role in speech articulation and may have been a factor in its apparition.
(20) Nevertheless, the prolongation of hemodialysis treatment duration over 7 years has led to the apparition of destructive arthropathies which are very painful and handicapping.
Phantom
Definition:
(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.