(n.) A space contained between the circumferences of two circles, one within the other.
(n.) The solid formed by a circle revolving around a line which is the plane of the circle but does not cut it.
(n.) Ring-shaped structures or markings, found in, or upon, various animals.
Example Sentences:
(1) Multiple determination of size, shape, and diameter of the left atrium were made during the control state and under conditions of varied ventricular outflow resistance in intact anesthetized dogs with markers chronically attached to the mitral annulus and the valve cusps.
(2) It is concluded that most annulus vacuums are a degenerative phenomenon at the attachment of the annulus to bone.
(3) A 29-mm Medtronic mitral valve was secured in the mitral position with a fixed number of ten pledgeted sutures in each annulus.
(4) Intervertebral disc proteoglycans (PGs) were radiolabelled in vivo (with [35SO4(2-)], 24 hours and 60 days prior to euthanasia, when lumbar discs were dissected into nucleus pulposus (NP) and annulus fibrosus (AF).
(5) To date, 3-dimensional studies have demonstrated that the mitral valve is saddle-shaped in systole, so that apparent superior leaflet displacement in the mediolateral 4-chamber view, often seen in otherwise normal individuals, lies entirely within the bounds defined by the mitral annulus and occurs without leaflet distortion or actual displacement above the entire mitral valve.
(6) The mean MAS was nearly twice that of 80 normal specimens (4.9 vs 2.5 mm), the range of MAS was increased from normal (0.11 vs 0.7 mm) and the mean diameter of the aortic annulus was decreased compared with the normal specimens, data that will be of interest to echo- and angiocardiographers in the clinical description of DSS, and to the surgeon who must resect these lesions.
(7) Echocardiography allowed preoperative classification of MI in 4 groups: Group 1 (n = 46) with prolapse of the posterior leaflet; Group 2 (n = 4) with prolapse of the anterior leaflet; Group 3 (n = 8) with prolapse of both mitral leaflets; Group 4 (n = 2) with abnormalities of the mitral annulus alone.
(8) Ten patients with roentgenographically demonstrable mitral annulus calcification (MAC) were found to have distinctive echocardiographic patterns.
(9) Pathologic features include focal and diffuse calcification and ossification in the anterior longitudinal ligament, paraspinal connective tissue, and annulus fibrosis, degeneration in the peripheral annulus fibrosis fibers, L-T-, and Y-shaped anterolateral extensions of fibrous tissue, hypervascularity, chronic inflammatory cellular infiltration, and periosteal new bone formation on the anterior surface of the vertebral bodies.
(10) Echocardiography and subsequently computed tomography showed a mass in the posterior mitral annulus causing incompetence of the valve.
(11) The valve gradient was significantly reduced (47%) from a mean (SD) of 72 (31) to 37 (23) mm Hg with no short term change in cardiac index after dilatation with a balloon with a mean (SD) diameter that was 118 (10.8)% of the valve annulus.
(12) Preoperatively there was a disproportionate increase in left coronary artery and annulus size during systole.
(13) This paper describes the histology and distribution of keratin patches and postulates a mechanism for their formation, based upon the movement of the superficial layer of corneocytes towards the annulus.
(14) Potentially damaging tensile stresses in the annulus fibrosus are directly related to the hydrostatic pressure in the centre of an intervertebral disc: the design and development of a miniature strain gauge pressure transducer is described for measuring such pressures.
(15) Replicas of freeze-fractured collagen fibrils of peripheral and central parts of the annulus fibrosus of bovine intervertebral discs show microfibrils which run either arranged in parallel or in a helix with an inclination-angle ranging from 4 degrees to 8 degrees.
(16) In normal subjects, the left ventricular (LV) epicardial apex swung up to the base only a few millimeters, and the mitral annulus ring moved about 14 mm as mean value toward the apex during systole.
(17) A method is described that allows intact removal of a prosthetic valve without damage to the annulus.
(18) In the annular form, only the annulus, and in the peripheral type only the peripheral connections of the valve are found in both ventricles.
(19) These results suggested that early mitral flow studied in an apical four chamber view is variably skewed both at the leaflet tips and at the annulus.
(20) In the presence of centre illumination, stimulation of the surround with an annulus caused a depolarization and a net decrease in conductance, and the reversal potential of the light-evoked response was shifted in a positive direction.
Sun
Definition:
(n.) See Sunn.
(n.) The luminous orb, the light of which constitutes day, and its absence night; the central body round which the earth and planets revolve, by which they are held in their orbits, and from which they receive light and heat. Its mean distance from the earth is about 92,500,000 miles, and its diameter about 860,000.
(n.) Any heavenly body which forms the center of a system of orbs.
(n.) The direct light or warmth of the sun; sunshine.
(n.) That which resembles the sun, as in splendor or importance; any source of light, warmth, or animation.
(v. t.) To expose to the sun's rays; to warm or dry in the sun; as, to sun cloth; to sun grain.
Example Sentences:
(1) However, four of ten young adult outer arm (relatively sun-exposed) and one of ten young adult inner arm (relatively sun-protected) fibroblasts lines increased their saturation density in response to retinoic acid.
(2) On the other hand the TUC says people should also be prepared to be out in the sun for several hours and bring sunscreen and if possible a hat.
(3) However, patients can be taught how to retard the onset of wrinkles by avoiding unprotected sun exposure, unnecessary facial movements, and certain sleeping positions.
(4) A planet with conditions that could support life orbits a twin neighbour of the sun visible to the naked eye, scientists have revealed.
(5) Or perhaps the "mad cow"-fuelled beef war in the late 1990s, when France maintained its ban on British beef for three long years after the rest of the EU had lifted it, prompting the Sun to publish a special edition in French portraying then president Jacques Chirac as a worm.
(6) A parent who took his anti-Page 3 campaign to Legoland and Wapping is claiming victory after the Danish toymaker announced the end of its two-year partnership with the Sun.
(7) He poses a far greater risk to our security than any other Labour leader in my lifetime September 12, 2015 “Security” appears to be the new watchword of Cameron’s government – it was used six times by the prime minister in an article attacking Corbyn in the Times late last month, and eight times by the chancellor, George Osborne, in an article published in the Sun the following day.
(8) The Sun editor also said his newspaper was wrong to use the word "tran" in a headline to describe a transexual, saying that he felt that "I don't know this is our greatest moment, to be honest".
(9) It has emerged that Kelvin MacKenzie , who attacked the decision by Channel 4 News in his Sun column and called on readers to complain to the media regulator, did not in fact end up lodging a complaint himself.
(10) News International executives are also understood to have been testing the water for a potentially swift launch of a Sunday edition of the Sun as a replacement for NoW, which published the final issue in its 168-year history on Sunday, in conversations with advertisers and media buyers.
(11) The 48-year-old, who turned to acting after hanging up his boots, told the Sun on Sunday it is the greatest challenge he has come up against.
(12) Never had I heard anything about what I saw documented so unsparingly in Evan’s photographs: families sleeping in the streets, their clothes in shreds, straw hats torn and unprotecting of the sun, guajiros looking for work on the doorsteps of Havana’s indifferent mansions.
(13) The media mogul said he had spoken "very carefully under oath" at the Leveson inquiry on Wednesday, when he had said that Brown had pledged to "declare war" on his company in a phone call made at around the time the Sun came out in support of the Conservative party, on 30 September of that year.
(14) Then annually from 1985 to 1989, they received written recommendations about sun protection for a period of 2-6 years after the initial education.
(15) A sun protection factor (SPF)-15 and an SPF-30 sunscreen were compared with regard to their ability to prevent sunburn cell formation after the exposure of human skin to a standardized dose of solar-simulated radiation.
(16) He said the Sun was hugely profitable and had enjoyed a record year in 2010.
(17) Venus has a special place in the sun’s family of planets.
(18) This finding does not affirm the belief that protection of adult skin from exposure to the sun will reduce the risk from melanoma.
(19) The Fellowship combines the academic rigour of an MBA with the reflective and ideological framework of a wellness retreat in Bali; without the sun and spa treatments, but with the added element of the formidable Dame Mary Marsh, a great example of a woman leading as a former headteacher, charity chief executive, NED and leadership development campaigner.
(20) The beach curved around us and the sun shone while the rest of the UK shivered under grey skies and sleet.