(n.) Any part of a mathematical instrument that moves or slides backward and forward upon another part.
Example Sentences:
(1) The bright lines in the difference image represent the paths along which the filaments have moved and are measured using a crosshair cursor controlled by the mouse.
(2) The device consists of a motor-driven shaft which moves the record past a fixed cursor, and an electronic counter which records the movements of the shaft, thereby providing a cumulative tally of the distance of the current position of the cursor from some arbitrary origin on the record.
(3) By simply adjusting a linear cursor, which is parallel to the base line, to the highest and the lowest levels of the lesion, the sagittal image with the lesion clearly depicted is automatically reconstructed.
(4) The cursor was then blanked, with subjects being required to place the now invisible cursor over a target.
(5) Mu rhythm amplitude was assessed by on-line frequency analysis and translated into cursor movement: larger amplitudes moved the cursor up and smaller amplitudes moved it down.
(6) Tracking efficiency was far below that observed for upper articulator control of the cursor.
(7) In the parasternal four-chamber view, the cursor was set so as to cross obliquely the right ventricular inflow tract just below the tricuspid valve and the left atrium, just above the mitral valve.
(8) They were asked to exert forces continuously to draw lemniscates (figure eights) in specified or self-chosen planes and in the presence or absence of a three-dimensional visual feedback cursor and a visual template.
(9) The instantaneous force exerted by the subjects on the manipulandum was shown on the disk in the form of a feedback cursor.
(10) The animals were required to move a cursor from the start box to one of four target boxes by movement of the manipulandum.
(11) Control of fine angular movements of the head and of the distal phalanx of the right thumb were compared by measuring subjects' accuracy in guiding a cursor through a path on a computer screen by turning the head or moving the thumb.
(12) The glottal waveforms measured by sonic-sensing pen tracing, cursor outlining, a photocell technique, and television camera scanning are presented and compared with the conventional polar planimeter method.
(13) The Doppler cursor can be correctly aligned in the jet core and allows accurate measures, and the display of spectral analysis is better with faster computers.
(14) Alternative explanations for the right hand tracking results, and for the nonsignificant trend towards a laterality effect (cursor left field-right hemisphere) for left hand tracking, were discussed.
(15) Monkeys aligned a cursor bar with high-contrast square-wave gratings presented in a variety of orientations.
(16) This study examined a visual analog of the PAT in which subjects matched the vertical position of a continually moving horizontal line (target) presented on one side of their point of fixation, with a second line (cursor) presented on the other side of their fixation point.
(17) Refinements in training procedures and in the distribution-based method used to translate mu rhythm amplitudes into cursor movements should further improve this 1-dimensional control.
(18) Vesicle aggregation (a necessary pre-cursor to membrane fusion) and subsequent membrane destabilization (an essential component of fusion) were examined by freeze-fracture electron microscopy.
(19) Morphometry was done on visually normal, polygonal intermediate cells without signs of human papilloma virus infection, with a graphic tablet and cursor under 40x oil immersion, and data were handled by microcomputer.
(20) We have performed comparative studies of the QWERTY keybord, cursor control keys, mouse and graphics tablet for data entry in two intensive therapy unit (ITU) environments.
Turtle
Definition:
(n.) The turtledove.
(n.) Any one of the numerous species of Testudinata, especially a sea turtle, or chelonian.
(n.) The curved plate in which the form is held in a type-revolving cylinder press.
Example Sentences:
(1) To test the hypothesis that reduced ATP production during anoxia was compensated partly by conserving energy through reduced ion leakage, the rate of K+ leakage was measured in normoxic and anoxic turtle brains in which Na(+)-K(+)-adenosinetriphosphatase was inhibited with ouabain.
(2) Similarity and difference of the nuclei investigated in the turtles with the thalamic anterior nuclei in lizards, with the anterior and intralaminar nuclei in Mammalia are discussed.
(3) Within two weeks of the inoculation, 42% of the turtles tested were positive for HBsAg, and their reciprocal titers as measured by reverse passive hemagglutination (RPHA) and enzyme linked immunoabsorbance assay (ELISA) ranged from 16 to 96.
(4) We have used these anatomical studies on Pseudemys and Mauremys retina to form a catalogue of neural types for the turtle retina in general.
(5) Na+-K+-ATPase activities are 2- to 2.5-fold higher in rat than in turtle brains.
(6) The male is intermediate between the female and the ancestral condition observed in other turtle species.
(7) Sequence identities of sea turtle GH to other species of GH are 89% with chicken GH, 79% with rat GH, 68% with blue shark GH, 58% with eel GH, 59% with human GH, and 40% with a teleostean GH such as chum salmon.
(8) Animals were permitted 3-8 days to come to a new steady-state body temperature (Tb) which ranged 5-32 degrees C. Least squares regression equation for pHi data are: frog blood, 8.184-0.0206 Tb; frog striated muscle, 7.275-0.0152 Tb; turtle blood, 8.092-0.0207Tb; turtle muscle, 7.421-0.0186 Tb; turtle heart, 7.452-0.0122 Tb; turtle liver, 7.753-0.0233 Tb; turtle esophageal smooth muscle, 7.513-0.0141 Tb.
(9) We replicated DNA fingerprints of snapping turtles (Chelydra serpentina) and hypervariable restriction fragments of red-winged blackbirds (Agelaius phoeniceus) to estimate the between-blot and between-lane components of variance in molecular weights of restriction fragments.
(10) With the onset of anoxia, the well-documented rapid increases in GABA found in mammalian brains were not observed in the turtle brain.
(11) Colonic tissue from the turtle (Pseudemys scripta) was exposed in a Ussing chamber to simultaneously applied static and time-varying magnetic fields.
(12) Responses to monochromatic flashes were recorded intracellularly from double cones in the retina of the turtle, Pseudemys scripta elegans.
(13) Applications to turtle (Pseudemys scripta) striated muscle are also explored.
(14) A preparation of turtle (Chrysemys picta and Pseudemys scripta) brain in which the integrity of the intracortical and geniculocortical pathways in visual cortex are maintained in vitro has been used to differentiate the excitatory amino acid (EAA) receptor subtypes involved in geniculocortical and intracortical synapses.
(15) Transducer currents were recorded in turtle cochlear hair cells during mechanical stimulation of the hair bundle.
(16) In this investigation the effects of aldosterone on H+ transport are examined in vitro in turtle bladder, a urinary membrane in which several of the factors controlling H+ transport have been defined.
(17) Particularly notable is the evidence of hemoglobin D: this hemoglobin (alpha D2 beta II2) is found only in birds, and in two cases in turtles.
(18) We conclude that there is homeostasis of K, Ca, and Mg in the extracellular fluids of normoxic turtle brain, as in other vertebrates, but that this homeostasis fails during long-term anoxia.
(19) In contrast, adult turtles had very low Cytox activity throughout the central nervous system.
(20) The general conclusions drawn from these studies is that renin secretion in this primitive vertebrate is similar to that in mammals with respect to renal tubular and electrolyte mechanisms, but unlike all mammals tested these turtles do not possess an intrarenal baroreceptor component in renin control.