(a.) Sharp at the end; ending in a sharp point; pointed; -- opposed to blunt or obtuse; as, an acute angle; an acute leaf.
(a.) Having nice discernment; perceiving or using minute distinctions; penetrating; clever; shrewd; -- opposed to dull or stupid; as, an acute observer; acute remarks, or reasoning.
(a.) Having nice or quick sensibility; susceptible to slight impressions; acting keenly on the senses; sharp; keen; intense; as, a man of acute eyesight, hearing, or feeling; acute pain or pleasure.
(a.) High, or shrill, in respect to some other sound; -- opposed to grave or low; as, an acute tone or accent.
(a.) Attended with symptoms of some degree of severity, and coming speedily to a crisis; -- opposed to chronic; as, an acute disease.
(v. t.) To give an acute sound to; as, he acutes his rising inflection too much.
Example Sentences:
(1) In January 2011, the Nobel peace prize laureate was admitted to a Johannesburg hospital for what officials initially described as tests but what turned out to be an acute respiratory infection .
(2) It is concluded that acute renal denervation augments the pressure diuresis that follows carotid occlusion.
(3) Ethanol and L-ethionine induce acute steatosis without necrosis, whereas azaserine, carbon tetrachloride, and D-galactosamine are known to produce steatosis with varying degrees of hepatic necrosis.
(4) IgE-mediated acute systemic reactions to penicillin continue to be an important clinical problem.
(5) The cumulative incidence of grade II and III acute GVHD in the 'low dose' cyclosporin group was 42% compared to 51% in the 'standard dose' group (P = 0.60).
(7) After a period on fat-rich diet the patient's physical fitness was increased and the recovery period after the acute load was shorter.
(8) It was concluded that metoclopramide and dexamethasone showed an excellent antiemetic effect on acute drug-induced emesis, as well as on delayed emesis, induced by cisplatin.
(9) The results suggest that RPE cannot be used reliably as a surrogate for direct pulse measurement in exercise training of persons with acute dysvascular amputations.
(10) Statistically significant differences were found mainly in the randomized trial, where during the first and second years, respectively, adenoidectomy subjects had 47% and 37% less time with otitis media than control subjects and 28% and 35% fewer suppurative (acute) episodes than control subjects.
(11) Tumour necrosis factor (TNF), a polypeptide produced by mononuclear phagocytes, has been implicated as an important mediator of inflammatory processes and of clinical manifestations in acute infectious diseases.
(12) During the procedure, acute respiratory failure developed as a result of tracheal obstruction.
(13) Four patients with acute brucellosis are described, none of whom had any connexion with farming or milk industry, the source of infection being different in each case.
(14) The leukemic T-cells in two patients with chronic lymphocytic leukemia (CLL) had specific features of large granular lymphocytes (LGL), and those in two patients with acute lymphocytic leukemia (ALL) had L2 morphologic characteristics.
(15) The acute effect of alcohol manifested itself by decreasing mitochondrial respiration, compensated by increased glycolytic activity of the myocardium so that myocardial energy phosphate concentration remained unchanged.
(16) The introduction of intravenous, high-dose thrombolytic therapy during a brief period has markedly reduced mortality of patients with acute myocardial infarction.
(17) The younger patients more often experienced an acute arthritis with sacroiliitis resembling a reactive disease.
(18) All five individuals appeared to have acute C. pneumoniae infection as determined by results of serologic tests (titers of IgM antibody for all individuals were greater than or equal to 1:16).
(19) The results clearly show that the acute hyperthermia of unrestrained rats induced by either peripheral or central injections of morphine is not caused by activation of the pituitary-adrenal axis.
(20) The effect of hypertension, hyperlipidemia, and the combination of both on acute and chronic myocardial ischemia were evaluated in a total of 30 male rabbits.
Apex
Definition:
(n.) The tip, top, point, or angular summit of anything; as, the apex of a mountain, spire, or cone; the apex, or tip, of a leaf.
(n.) The end or edge of a vein nearest the surface.
Example Sentences:
(1) After 1 year, anesthesia was induced with chloralose and an electrode catheter placed at the right ventricular apex.
(2) 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.
(3) It is therefore suggested that salt water adaptation triggers a cellular reorganization of the epithelium in such a way that leaky junctions (a low resistance pathway) appear at the apex of the chloride cells.
(4) When HRP was injected in the left ventricular wall or the apex, few labeled neurons were identified in the DMN.
(5) 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.
(6) However, the external muscle fibers of the ventricles ran clockwise from base to apex toward the center of the vortex, which had a striking resemblance to the normal rather than the mirror image pattern.
(7) In the RAO view with the collimator flat against the chest there was better resolution of the cardiac apex.
(8) Their proliferating regions are located in the apex tip, where the various cells originate.
(9) In these tissues, the viral DNA replicated at the site of inoculation and was transported first to the roots, then to the shoot apex and to the neighboring leaves and the flowers.
(10) The vertical distances were compared with measurements taken from periapical radiographs between the apex of each mesial root and the superior border of the mandibular canal prior to sectioning.
(11) Three of six patients in whom treatment failed had disease at the vaginal apex.
(12) We recommend this skin incision for young patients with pneumothorax if the chest CT scan confirms that the bullae or blebs are localized to the apex of superior segment of the lower lobe.
(13) MRI only offered advantages over CT in lesions of the orbital apex, the upper part of the orbit, and in the diagnosis of inflammatory processes.
(14) In the accelerated protocol, one, two, and then three extrastimuli were introduced at each of three basic drive train cycle lengths (350, 400, and 600 msec) at the right ventricular apex; the procedure was repeated at a second right ventricular site.
(15) Magnetic resonance imaging of the chest in patients with lung cancer is being investigated, but current studies comparing it with CT demonstrate no definite advantage at this time, with the possible exception of the lung apex in which T1 weighted thin-section coronal views are useful.
(16) The apex to base lung distribution of 99Tcm-C and 81Krm appeared to be similar.
(17) If a web has a low apex angle and the skin is elastic, the length-width ratio may be as great as 1.5:1.
(18) Double product increase was inferior to that recorded before atenolol administration; the difference became significant after 2 months and reached its apex after 6 months of treatment.
(19) HRCT scans at the apex of the thorax in all nine patients scanned at this level showed that extrapleural fat with interspersed vessels accounted for most of the plain radiographic opacity.
(20) To determine if anodal excitation during bipolar stimulation facilitates the initiation of sustained monomorphic ventricular tachycardia, nonsustained polymorphic ventricular tachycardia, or repetitive ventricular responses, both bipolar and cathodal unipolar programmed ventricular stimulation with one to three extrastimuli delivered during ventricular pacing at two rates from the right ventricular apex were performed in 28 patients evaluated for spontaneous sustained ventricular tachycardia or ventricular fibrillation (11 patients), nonsustained tachycardia (eight patients), or syncope (nine patients).