(1) KCl thus appears to induce an intermediate which is either nonexistent when omitted or in such low concentration as not to be readily detected.
(2) The correlations of C3, C4, CH50 and factor B with abnormal clearance and disease activity were weaker or nonexistent.
(3) Anterior segment involvement was slight or nonexistent, and damage to the retina and uvea was of a focal rather than of a diffuse nature.
(4) Although the use of anticancer agents can be associated with severe side effects, on a practical basis complications of therapy are minimal to nonexistent.
(5) Early or late mortality among patients with isolated aortic coarctation was nonexistent, and it was 28.5% in patients with other congenital heart defects.
(6) Compartmentalization of germ cells in the seminiferous epithelium, therefore, was nonexistent.
(7) Doxycycline and other antibiotics have been implicated in oral contraceptive (OC) failure, but information is sparse and studies of a doxycycline-OC interaction are nonexistent.
(8) This enzymatic activity probably contributes to the steady state level of micronuclear histone acetylation that is low or nonexistent.
(9) But most of them were the first members of their family to adopt the veil, the majority had no niqab-wearing peers, their attendance at their mosque was minimal, and their affiliation to any Islamic bodies almost nonexistent.
(10) In the case of Wistar and Sprague-Dawley rats, the boosting effect of IL-2 on NK levels was either poor or nonexistent.
(11) Previous functional studies with the rat jugular vein have shown alpha-adrenergically mediated contraction was minimal to nonexistent, yet this tissue relaxed in response to norepinephrine via beta 1 and to isoproterenol via beta 2-receptor activation.
(12) After the third attempt, successful capsulotomies are either very rare or nonexistent.
(13) A small dependence of the intracellular relaxation rate on extracellular paramagnetic agent concentration, assumed nonexistent with the HG method, is inferred from the new analysis.
(14) The court relied on testimony of medical experts that the risk to patients from general practitioners with AIDS could be reduced, by training and education, to nonexistence, and emphasized that confidentiality is of paramount importance to AIDS patients and therefore is in the public interest.
(15) The thermodynamic study suggests a quantitative relationship of radiopharmaceutical:protein = 1:1 and an almost nonexistent influence of the temperature, which means that the interacting forces in this process are relatively weak.
(16) Hence in both groups, the percentage PRL suppression was significantly reduced compared with the control group, and indeed nonexistent in cortisol-nonsuppressed patients.
(17) In most instances, the evaluation is incomplete or nonexistent.
(18) In contrast, the infiltration of B lymphocytes was virtually nonexistent with few or no sIgM positive cells present in the lesions after either 4 or 14 days of exposure to ozone.
(19) "So it's nonexistent and it's false that we are at the moment looking for a goalkeeper."
(20) Although human studies are nonexistent, in those experimental organisms tested, using accepted techniques, LSD proved to be, at best, a weak mutagen, if mutagenic at all.
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.