(n.) A passage; esp., the passage between the third and fourth ventricles in the brain; the aqueduct of Sylvius.
Example Sentences:
(1) Signals were processed by iterative routines that computed the location of one or two independent dipoles that best reconstruced the observed surface potentials.
(2) A line iterative technique is described to solve numerically the resulting coupled system of nonlinear partial differential equations with physiologically relevant boundary and entrance conditions.
(3) The local secondary structure was calculated from sequential and medium-range backbone NOEs with the double-iterated Kalman filter method [Altman, R. B., & Jardetzky, O.
(4) 9.59am GMT Summary We’ll leave you with a summary of what transpired here throughout the day: • Julia Gillard announced a contest for her position as prime minister following calls by Simon Crean, a senior minister in her government, for her to be replaced by her predecessor, Kevin Rudd • Shortly before the ballot was to take place Kevin Rudd announced he would not stand for the Labor Party leadership , re-iterating his promise to the Australian people that he would not challenge Julia Gillard • When it came time for the ballot, Gillard was the only person who stood for the leadership and she and her deputy Wayne Swan were elected unopposed .
(5) Flow-karyotypes are normalized using an iterative fitting procedure, using corrections for (1) amplification of HO and CA fluorescence, (2) cross-talk between the fluorescence signals of HO and CA, and (3) offset of the HO and CA origin.
(6) Various iterative algorithms for separation of superimposed event sequences were designed, and their efficiency examined through simulation studies.
(7) With larger differences in the analog values (and larger feedback error) at each iteration, we found that networks learned to transmit different chaotic attractors.
(8) An iterative method is presented which solves for the radius of curvature despite the variation in magnification.
(9) We have investigated the properties of a recursive process in which the output signal from a given RF excitation pulse may be used as the input (excitation) pulse of a subsequent iteration.
(10) The Vancouver Sedative Recovery Scale (VSRS) was developed through an iterative process during which we identified numerous indicators of levels of alertness among sedated children, and then determined the applicability and face validity of these indicators.
(11) The PIC scores of 132 learning-disabled children between the ages of 6 and 12 years were investigated using Q-factor analysis, four hierarchical-agglomerative clustering techniques, and one iterative partitioning clustering technique.
(12) But it also succeeded by elevating the likes of Luke Skywalker and Han Solo to the kind of status usually reserved for totemic superheroes such as Batman, Superman and Spider-Man, characters destined to be wheeled out time and time again in different big screen iterations.
(13) Both single dose treatment and iterated injections caused significant retardation of tumour growth, and continuous infusion had a more pronounced effect, almost completely retarding increase in tumour volume; these differences in effect in between the treatment schedules were not, however, statistically significant.
(14) Implementing ergonomic interventions is an ongoing, iterative process.
(15) An explicit solution to these equations giving true corneal thickness in terms of apparent thickness cannot be established, and an iterative procedure is used to develop a relationship for a number of different pachometer configurations.
(16) The retrieval is done by using a bidimensional Gerchberg-Saxton phase-retrieval algorithm joined to an iterative phase-unwrapping algorithm.
(17) This algorithm consists of a versatile variation scheme and an innovative decision rule, the essence of which lies in a radical revision of the conventional philosophy of optimization: A number of configurations of variables with better values, instead of only a single best configuration, are selected as starting points for the next iteration.
(18) With the help of a computer program using Newton's iterative method, it is possible to obtain a practically instantaneous solution for the two-wavelenght method equation even for values different from 2 for the ratio k of the extinction coefficients.
(19) Three methods of obtaining distance constraints from 2D NOE peak intensities are examined: one entails a conservative use of ISPA, one assumes the ISPA to be fairly accurate, and one utilizes an iterative relaxation matrix method called MARDIGRAS (matrix analysis of relaxation for discerning the geometry of an aqueous structure), developed in this laboratory.
(20) They opposed the first iteration of the House healthcare bill as not going far enough to repeal Obamacare.
Ventricle
Definition:
(n.) A cavity, or one of the cavities, of an organ, as of the larynx or the brain; specifically, the posterior chamber, or one of the two posterior chambers, of the heart, which receives the blood from the auricle and forces it out from the heart. See Heart.
(n.) The stomach.
(n.) Fig.: Any cavity, or hollow place, in which any function may be conceived of as operating.
Example Sentences:
(1) This paper discusses the typical echocardiographic patterns of a variety of important conditions concerning the mitral valve, the left ventricle, the interatrial and interventricular septum as well as the influence of respiration on the performance of echocardiograms.
(2) A quadripolar catheter was positioned either at the site of earliest ventricular activation during induced monomorphic ventricular tachycardia or at circumscribed areas of the left ventricle.
(3) The origin of the aorta and pulmonary artery from the right ventricle is a complicated and little studied congenital cardiac malformation.
(4) Thus, mechanical restitution of the ventricle is a dynamic process that can be assessed using an elastance-based approach in the in situ heart.
(5) Defibrotide prevents the dramatic fall of creatine phosphokinase activity in the ischemic ventricle: metabolic changes which reflect changes in the cells affected by prolonged ischemia.
(6) Mitoses of nuclei of myocytes of the left ventricle of the heart observed in two elderly people who had died of extensive relapsing infarction are described.
(7) Gardner proposed that anomalies at the exit of the fourth ventricle produce a communicating syringomyelia.
(8) The authors report a case of epidermoid tumor of the lateral ventricle.
(9) It may, however, be useful to compare local wall dynamics in the more isometrically-contracting basal segment with those in the middle portion which brings about most of the emptying of the ventricle.
(10) Patients with MID, but not those with DAT, exhibited correlations between enlargement of the third and lateral ventricles and severity of cognitive impairment.
(11) Following injections of HRP into the apex of the heart, the sinoatrial (SA) nodal region and the ventral wall of the right ventricle, we observed that HRP-labeled sympathetic neurons were localized predominantly in the right stellate ganglia, and to a lesser extent, in the right superior and middle cervical ganglia, and left stellate ganglia.
(12) When histamine (5 micrograms) was injected into three different levels of the ventricular system, the magnitude and duration of the resulting increases in plasma epinephrine and glucose were in the following rank order: the third ventricle greater than aqueduct much greater than fourth ventricle.
(13) To find out whether the deeper inhibition of replicative activity in ventricular myocytes influences fibroblasts and endothelial cells from ventricles, the proliferative activity of non-muscle cells was studied.
(14) Rapid right ventricular pacing increased the extent and degree of dyskinesia of the left ventricle, but premedication with nicorandil improved the wall motion.
(15) Computer-aided axial tomography revealed progressive development of atrophy of the left hemisphere and compensatory dilatation of the ventricles.
(16) Severity of leukoaraiosis around the frontal horns of the lateral ventricles correlated significantly with severity of leukoaraiosis of the centrum semiovale adjacent to the bodies of the lateral ventricles.
(17) Animals were chronically implanted with epidural or deep recording electrodes and a cannula in one lateral ventricle, and tested whilst seated in a primate chair.
(18) In acute experiments on 16 dogs the anterior descending branch of the left coronary artery was stenosed to produce a hypokinesia or dyskinesia of the anterior wall of the left ventricle.
(19) In spite of the limitations arising from the complex geometry of the right ventricule, echocardiography may be the most important non-invasive technique in the evaluation of the structural and functional repercussion of hypertension on the right ventricle.
(20) The length of the diaphragmatic wall of the heart in both the right and left ventricle was equal to the sum of the length of the inflow tract and the thickness of the ventricular wall at the apex.