(n.) The act of contracting, or of making or becoming less in breadth or extent.
(n.) The part of a stocking which is narrowed.
Example Sentences:
(1) The PSB dioxygenase system displayed a narrow substrate range: none of 18 sulphonated or non-sulphonated analogues of PSB showed significant substrate-dependent O2 uptake.
(2) Comparison of developmental series of D. merriami and T. bottae revealed that the decline of the artery in the latter species is preceded by a greater degree of arterial coarctation, or narrowing, as it passes though the developing stapes.
(3) This promotion of repetitive activity by the introduction of additional potassium channels occurred up to an "optimal" value beyond which a further increase in paranodal potassium permeability narrowed the range of currents with a repetitive response.
(4) In all immunized rabbits the antisera obtained with the 7 alpha-derivative had a higher affinity and a narrower specificity than the antiserum obtained with the 7 beta-derivative.
(5) That is, he believes, to look at massively difficult, interlocking problems through too narrow a lens.
(6) Photograph: AP Reasons for wavering • State relies on coal-fired electricity • Poor prospects for wind power • Conservative Democrat • Represents conservative district in conservative state and was elected on narrow margins Campaign support from fossil fuel interests in 2008 • $93,743 G K Butterfield (North Carolina) GK Butterfield, North Carolina.
(7) Their narrowed processes pass at a common site through the muscle layer and above this layer again slightly widen and project above the neighbouring tegument.
(8) These patients did not have narrow anterior chamber angles preoperatively, and several were aphakix with surgical iris colobomas.
(9) The linewidths of the methionine Cepsilon resonances are narrowed by increasing temperature according to an Arrhenius energy of activation of nearly 3 kcal.
(10) The detergent lauryl maltoside abolishes respiratory control and proton ejection by cytochrome c oxidase-containing proteoliposomes over a narrow concentration range.
(11) Per-rotational nystagmus was recorded in rabbits with unilaterally narrowed vertebral arteries or following unilateral cervical sympathectomies.
(12) However, the narrow range of the ED50 suggests relatively little variation in the response of the different isolates in vivo and similarly small variation was also noted in some of the tests in vitro.
(13) Eight patients had glaucoma only in one eye; three narrow-angle glaucoma, three primary open-angle glaucoma and two secondary glaucoma.
(14) In the fifth case the vein was too narrow to allow catheterization.
(15) It was found that within the dorsal part of the well known pressor area there is a narrow strip, 2.5 mm lateral from the mid line, starting ventral to the inferior colliculus and ending in the medulla close to the floor of the IV ventricle, from which vasodilatation in skeletal muscles is selectively obtained.
(16) Each border was within a region of 11 nucleotides and gave rise to a narrow size range (1248-1261 nucleotides) for the population of 22 subgenomic DNAs.
(17) These factors include narrowing of septal arteries and the artery to the atrioventricular node, preservation of fetal anatomy with dispersion in the atrioventricular node and His bundle, fibrosis of the sinus node, clefts in the septum, multiple atrioventricular pathways and massive myocardial infarction.
(18) Time suggests that the FBI inquiry has been extended from a relatively narrow look at alleged malpractices by News Corp in America into a more general inquiry into whether the company used possibly illegal strongarm tactics to browbeat rival firms, following allegations of computer hacking made by retail advertising company Floorgraphics.
(19) These three activities, appearing within a narrow range of molecular weights, different from those of other known lymphokines, suggest the existence of a distinct class of lymphokine mediators with the common function of influencing functional properties of tumor cells.
(20) The narrow intercellular ridge is smooth, whereas the epithelial cells have small cytoplasmic knobs between the cilia.
Stenosis
Definition:
(n.) A narrowing of the opening or hollow of any passage, tube, or orifice; as, stenosis of the pylorus. It differs from stricture in being applied especially to diffused rather than localized contractions, and in always indicating an origin organic and not spasmodic.
Example Sentences:
(1) Graft life is even more prolonged with patch angioplasty at venous outflow stenoses or by adding a new segment of PTFE to bypass areas of venous stenosis.
(2) An axillo-axillary bypass procedure was performed in a high-risk patient with innominate arterial stenosis who had repeated episodes of transient cerebral ischemia due to decreased blood flow through the right carotid artery and reversal of blood flow through the right vertebral artery.
(3) In particular, inflammatory reaction was significantly more frequent and severe in ischemic groups than in controls, independent of the degree of coronary stenosis.
(4) None of the children in the study showed clinical symptoms of acquired subglottic stenosis before discharge from hospital, and none has been readmitted for this condition subsequently.
(5) The sensitivity of SPECT for detection of overall coronary stenosis was 79%, contrary that of treadmill exercise test was only 33% (p < 0.001).
(6) A study of the time-course of the response during aortic stenosis of 30 min duration showed early release of renin from the innervated kidney at a time (5 min) when little release occurred from the denervated one.
(7) A clear association between ischaemic heart disease, carotid artery stenosis and femoropopliteal disease was found.
(8) After early repair of congenital cardiovascular defects, such as coarctation of the aorta, late stenosis may become a problem.
(9) Autopsy revealed serious somatic diseases (stenosis of the ileum in two cases and brain tumor in one); their symptoms had been largely overlapped by those of anorexia nervosa.
(10) To evaluate the relationship between the motion pattern and degree of organic change of the anterior mitral leaflet (AML) and the features of the mitral component of the first heart sound (M1) or the opening snap (OS), 37 patients with mitral stenosis (MS) were studied by auscultation, phonocardiography and echocardiography.
(11) A patient with mitral stenosis and atrial flutter was found to have a normal diastolic closure rate (E to F slope).
(12) Even if it does not always provide the solution to a particularly delicate problem, which is often of vital importance, it provides data which, modifiable and better used, should provide an adequate notion of the anatomical and physiopathological state in aortic stenosis.
(13) Four clinical cases of subaortic hypertrophic muscular stenosis are discussed.
(14) The plasma renin activity of the 1 day post-stenosis rats showed 65% higher activity than the sham controls with no significant change in the 30-60 days post-stenosis.
(15) Our results show that stenosis of about one-third of the original external diameter of the artery and vein of the pedicle in our model did not have any significant influence on the survival of the flap and ligation of the femoral artery distal to the branch to the flap did not produce any statistical difference in the viability of the flap.
(16) A velocity ratio of less than or equal to 0.25 alone was sensitive (92%) in detecting severe aortic stenosis.
(17) Follow-up studies using radiological methods show worse results (recurrent stones in II: 21.2%, in I: 5.8%, stenosis of EST in II: 6.1%, in I: 3.1%): Late results of EST because of papillary stenosis are still worse compared to those of choledocholithiasis.
(18) Striking features were non-atherosclerotic stenosis with negative Sudan III, seen in the ICA less than 200 mu in diameter of almost all the hearts of stages II and III rabbits.
(19) The concomitant reduction in aortic pressure and increase in heart rate following total occlusion of the portal vein were most pronounced during the first weeks after stenosis, and were probably due to diminished venous return to the heart.
(20) The average size of stenosis after dilation was 32%.