(n.) A flat, circular plate; as, a disk of metal or paper.
(n.) The circular figure of a celestial body, as seen projected of the heavens.
(n.) A circular structure either in plants or animals; as, a blood disk; germinal disk, etc.
(n.) The whole surface of a leaf.
(n.) The central part of a radiate compound flower, as in sunflower.
(n.) A part of the receptacle enlarged or expanded under, or around, or even on top of, the pistil.
(n.) The anterior surface or oral area of coelenterate animals, as of sea anemones.
(n.) The lower side of the body of some invertebrates, especially when used for locomotion, when it is often called a creeping disk.
(n.) In owls, the space around the eyes.
Example Sentences:
(1) These findings suggest that clonidine transdermal disks lower blood pressure in hypertensive patients, but produce local skin lesions and general side effects.
(2) These observations suggest that the liver secretes disk-shaped lipid bilayer particles which represent both the nascent form of high density lipoproteins and preferred substrate for lecithin-cholesterol acyltransferase.
(3) Opsin becomes incorporated into the disk membrane by a process of membrane expansion and fusion to form the flattened disks of the outer segment.
(4) Somatic and functional antigens of Dictyocaulus filaria were comparatively studied by means of disk electrophoresis.
(5) We performed a prospective study on 68 eyes of 68 patients to compare the vertical cup-disk ratio obtained with the video-ophthalmograph to that obtained with manual analysis of black-and-white stereoscopic photographs.
(6) Visible light activates a large guanosine cyclic 3',5'-phosphate (cGMP)- and phosphodiesterase (PDE)-dependent infrared light-scattering change in suspensions of photoreceptor disk membranes.
(7) Three disks of different sizes (10, 25, and 45 mm in diameter) were attached to the edge of the baresthesiometer, and pressures of 1, 3 and 5 kg were applied to the 10 mm disk, and 1, 3, 5, and 7 kg to the other disks.
(8) The hemolytic characteristics of 14 different polydimethyl-siloxane materials were studied, using a rotating disk device to shear whole human blood for 6000 sec.
(9) These optic disk anomalies occurred bilaterally with some inter- and intra-individual variable expressivity.
(10) This is the first reported case, to the best of my knowledge, of disk neovascularization occurring after intravenously injected, crushed, unfiltered, methylphenidate HCl tablets.
(11) We have investigated the relationship between rhodopsin photochemical function and the retinal rod outer segment (ROS) disk membrane lipid composition using flash photolysis techniques.
(12) We found that the Na-Ca exchanger is distributed throughout all membranes in contact with the extracellular space, including the sarcolemma, the transverse tubules (T-tubules), and the intercalated disks.
(13) The minimal inhibitory concentration of netilmicin determined by the agar dilution method was correlated with the disk diffusion zone of inhibition against 322 clinical isolates.
(14) The initiation step consisting of the binding of RNA with the 36S disk of protein was easily accomplished.
(15) The state of the intervertebral disks, intervertebral joints and cerebrospinal canal in degenerative vertebral diseases was assessed.
(16) It is concluded that although a rapid automated system for antibiotic sensitivity testing is desirable, the conventional disk agar diffusion method is easier to perform, more reliable, and a less expensive procedure for antibiotic sensitivity determination.
(17) The diagnostic accuracy of CT in cases of lumbar disk prolapse was investigated on the basis of a group of 158 of our own patients who were divided into three separate groups.
(18) Disk position was assessed inaccurately in either plane in patients with severe degenerative joint disease.
(19) Based on the morphology and magnetic anisotropy of the rod outer segment, the major phospholipid peak is attributed to the flat part of the disk membranes while the phospholipids of the plasma membrane are thought to contribute only to the minor peak.
(20) QC range for H. Influenzae ATCC 49247 were established using multiple HTM agar and broth base lots, three disk lots for each drug, and a number of test replicates consistent with the National Committee for Clinical Laboratory Standards M23-T guideline.
Phase
Definition:
(n.) That which is exhibited to the eye; the appearance which anything manifests, especially any one among different and varying appearances of the same object.
(n.) Any appearance or aspect of an object of mental apprehension or view; as, the problem has many phases.
(n.) A particular appearance or state in a regularly recurring cycle of changes with respect to quantity of illumination or form of enlightened disk; as, the phases of the moon or planets. See Illust. under Moon.
(n.) Any one point or portion in a recurring series of changes, as in the changes of motion of one of the particles constituting a wave or vibration; one portion of a series of such changes, in distinction from a contrasted portion, as the portion on one side of a position of equilibrium, in contrast with that on the opposite side.
Example Sentences:
(1) At the early phase of the sensitization a T-cell response was seen in vitro, characterized by an increased spleen but no peripheral blood lymphocyte reactivity to T-cell mitogens at the same time as increased reactivity to the sensitizing antigen was detected.
(2) It was found that linear extrapolations of log k' versus ET(30) plots to the polarity of unmodified aqueous mobile phase gave a more reliable value of log k'w than linear regressions of log k' versus volume percent.
(3) dl-Methionine stimulated the synthesis of cephalosporins when added after the growth phase.
(4) One of these antibodies, MCaE11, was used for immunohistochemical detection of MAC in tissue and for quantification of the fluid-phase TCC in ethylenediaminetetraacetic acid plasma.
(5) The first phase evaluated cytologic and colposcopic diagnoses in 962 consecutive patients in a community practice.
(6) An initial complex-soma inflection was observed on the rising phase of the action potential of some cells.
(7) The country has no offshore wind farms, though a number of projects are in the research phase to determine their profitability.
(8) Under these conditions the meiotic prophase takes place and proceeds to the dictyate phase, obeying a somewhat delayed chronology in comparison with controls in vivo.
(9) Epidermal growth factor reduced plating efficiency by about 50% for A431 cells in different cell cycle phases whereas a slight increase in plating efficiency was seen for SiHa cells.
(10) A triphasic pattern was evident for the neck moments including a small phase which represented a seating of the headform on the nodding blocks of the uppermost ATD neck segment, and two larger phases of opposite polarity which represented the motion of the head relative to the trunk during the first 350 ms after impact.
(11) In this phase the educational practices are vastly determined by individual activities which form the basis for later regulations by the state.
(12) Optimum rates of acetylene reduction in short-term assays occurred at 20% O2 (0.2 atm (1 atm = 101.325 kPa] in the gas phase.
(13) During the chronic phase, pain was assessed using visual analogue scales at 8 AM and 4 PM daily.
(14) High levels of spirochetes also were detected in diseased sites with phase-contrast microscopy.
(15) In addition to the phase diagrams reported here for these two binary mixtures, a brief theoretical discussion is given of other possible phase diagrams that may be appropriate to other lipid mixtures with particular consideration given to the problem of crystalline phases of different structures and the possible occurrence of second-order phase transitions in these mixtures.
(16) It is suggested that the rapid phase is due to clearance of peptides in the circulation which results in a fall to lower blood concentrations which are sustained by slow release of peptide from binding sites which act as a depot.
(17) This article reviews the care of the chest-injured patient during the intensive care unit phase of his or her recovery.
(18) We concluded that ketamine potentiates the Phase I and the Phase II neuromuscular blocks of succinylcholine.
(19) In later phases, mast cells appeared in the newly formed marrow in the external callus.
(20) Each patient contributed only once to each phase (105 in phase 1, 107 in phase 2), but some entered both phases on separate occasions.