Results 251 to 260 of about 89,519 (298)

Transfemoral transcatheter aortic valve replacement in a patient with a history of artificial aortic arch replacement and stent implantation: a case report and strategies for a super-stiff approach. [PDF]

Eur Heart J Case Rep
Yang Y, Yan Y, Yao J, Liu X, Song G.
europepmc   +1 more source

Can cervical disc herniations be provoked <i>in vitro</i>? [PDF]

Front Bioeng Biotechnol
Zengerle L, Schilpp T, Jansen JU, Berger D, Jonas R, Greiner-Perth AK, Liebsch C, Wilke HJ.   +7 more
europepmc   +1 more source

The technical evolution and persistent challenges in the surgical management of mitral annular calcification. [PDF]

J Thorac Dis
Kanemitsu S.
europepmc   +1 more source

A Modified Bentall Procedure Due to Anomalous Subvalvar Origin of Left Main Coronary Artery. [PDF]

Acta Cardiol Sin
Karslıoğlu AO, Hafez İ, Tünel HA, Diken Aİ.   +3 more
europepmc   +1 more source

The Long Annulus Theorem

Canadian Mathematical Bulletin, 1986
AbstractGiven a properly embedded incompressible surface F in a Haken manifold M, there is an integer n depending only on M and F with the following property: If there is a singular annulus in M that meets F in more then n nontrivial loops that are not freely homotopic on F then M contains an essential torus or annulus, or M is a bundle with fiber F ...
Benny Evans
openaire   +3 more sources

Septins at the annulus of mammalian sperm

Biological Chemistry, 2011
The annulus is an electron-dense ring structure connecting the midpiece and the principal piece of the mammalian sperm flagellum. Proteins from the septin family have been shown to localize to the annulus.
Aminata Touré, Gary R Hunnicutt, Gérard Gacon   +2 more
exaly   +2 more sources

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Catenation of Calixarene Annulus

Organic Letters, 2012
Through-the-annulus-catenated calixarenes have been obtained, for the first time, by exploiting the "superweak anion" approach that allows the threading of the calix cavity with functionalized dialkylammonium axles. In addition, the first example of a stereoprogrammed synthesis of a catenane orientational isomer (an oriented calix[2]catenane) has been ...
GAETA, CARMINE, TALOTTA, CARMEN, MIRRA, SILVIA, MARGARUCCI, LUIGI, CASAPULLO, Agostino, NERI, Placido   +5 more
openaire   +3 more sources

Mitral Annulus Calcification

Radiology, 1964
Cardiac calcifications, and in particular mitral annulus calcifications, have evoked only minor interest in the past (3, 5, 10). It was not until the advent of cardiac surgery that the investigation and localization of these calcifications gained impetus.
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The fibrous annulus in myringoplasty

The Journal of Laryngology & Otology, 1992
AbstractGraft cholesteatoma is a serious complication of tympanic membrane grafting. It is due to burying keratinizing epithelium under the graft. Its occurrence in the anterior angle has been attributed to the presence of epithelial rests within the annulus in this area, and consequently is considered inevitable with overlay technique.In the present ...
A, el-Seifi, B, Fouad
openaire   +2 more sources