Results 61 to 70 of about 304,400 (401)

Síndrome do aprisionamento da artéria poplítea: relato de caso Popliteal artery entrapment syndrome: case report

Jornal Vascular Brasileiro, 2011
A síndrome do aprisionamento da artéria poplítea caracteriza-se pela compressão desta artéria sendo a principal causa de claudicação intermitente em jovens.
Marcelo Bettega, Ariane Szeliga, Rafael Pereira Hagemann, Antônio Lacerda Santos Filho, Nelson Mesquita Júnior   +4 more
doaj   +1 more source

Theory of AC Josepson Effect in Superconducting Constrictions [PDF]

, 1997
We have developed a microscopic theory of ac Josephson effect in short ballistic superconducting constrictions with arbitrary electron transparency and in constrictions with diffusive electron transport. The theory is valid for arbitrary miscroscopic structure of the superconducting electrodes of the constriction. As applications of the theory we study
arxiv   +1 more source

Lipid-mediated PX-BAR domain recruitment couples local membrane constriction to endocytic vesicle fission

Nature Communications, 2017
Clathrin-mediated endocytosis (CME) involves membrane-associated scaffolds of the bin-amphiphysin-rvs (BAR) domain protein family as well as the GTPase dynamin, and is accompanied and perhaps triggered by changes in local lipid composition.
J. Schöneberg, Martin Lehmann, Alexander Ullrich, York Posor, Wen-Ting Lo, Gregor Lichtner, J. Schmoranzer, V. Haucke, F. Noé   +8 more
semanticscholar   +1 more source

Momentum noise in a quantum point contact [PDF]

, 2002
Ballistic electrons flowing through a constriction can transfer momentum to the lattice and excite a vibration of a free-standing conductor. We show (both numerically and analytically) that the electromechanical noise power P does not vanish on the ...
A. Kumar, A. Szafer, A. Tajic, A.V. Shytov, B. Yurke, B.J. van Wees, C. W. J. Beenakker, C.W.J. Beenakker, D.A. Wharam, G.B. Lesovik, M. Büttiker, M. Kindermann, M.F. Bocko, M.I. Reznikov, Ya.M. Blanter   +14 more
core   +3 more sources

Ion channel function of polycystin‐2/polycystin‐1 heteromer revealed by structure‐guided mutagenesis

FEBS Letters, EarlyView.
Mutations in polycystin‐1 (PC1) or polycystin‐2 (PC2) cause autosomal‐dominant polycystic kidney disease (ADPKD). We generated a novel gain‐of‐function PC2/PC1 heteromeric ion channel by mutating pore‐blocking residues. Moreover, we demonstrated that PC2 will preferentially assemble with PC1 to form heteromeric complexes when PC1 is co‐expressed ...
Tobias Staudner, Juthamas Khamseekaew, M. Gregor Madej, Linda Geiges, Bardha Azemi, Christine Ziegler, Christoph Korbmacher, Alexandr V. Ilyaskin   +7 more
wiley   +1 more source

Transition from positive to negative magnetoresistance induced by a constriction in semiconductor nanowire [PDF]

, 2015
We have studied the magnetotransport through an indium antimonide (InSb) nanowire grown in [111] direction, with a geometric constriction and in an external magnetic field applied along the nanowire axis. We have found that the magnetoresistance is negative for the narrow constriction, nearly zero for the constriction of some intermediate radius, and ...
arxiv   +1 more source

Low-field quantum Hall transport in an electron Fabry-Perot interferometer: Determination of constriction filling vs front-gate voltage [PDF]

Phys. Rev. B 78, 245322 (2008), 2008
We report systematic quantum Hall transport experiments on Fabry-Perot electron interferometers at ultra-low-temperatures. The GaAs/AlGaAs heterostructure devices consist of two constrictions defined by etch trenches in 2D electron layer, enclosing an approximately circular island.
arxiv   +1 more source

Comparative effectiveness of drugs used to constrict the patent ductus arteriosus: a secondary analysis of the PDA-TOLERATE trial (NCT01958320). [PDF]

, 2019
ObjectiveTo evaluate the effectiveness of drugs used to constrict patent ductus arteriosus (PDA) in newborns < 28 weeks.MethodsWe performed a secondary analysis of the multi-center PDA-TOLERATE trial (NCT01958320).
Aucott, Susan W, Bulbul, Ali, Carey, William A, Clyman, Ronald I, Derrick, Matthew, Dong, Lawrence, Erdeve, Omer, Farooqi, Aijaz, Hassinger, Denise C, Hayashi, Madoka, Heuchan, Anne Marie, Håkansson, Stellan, Kaempf, Joseph, Katheria, Anup, Kimball, Amy, Leone, Tina, Liebowitz, Melissa, Lindqvist, Johanna, Nelson, Kelly, Perez, Jorge, Sankar, Meera, Sauberan, Jason, Serize, Arturo, Singh, Jaideep, Wickremasinghe, Andrea, Wolf, Ilene Sue   +25 more
core   +1 more source

Exploiting Locally Imposed Anisotropies in (Ga,Mn)As: a Non-volatile Memory Device

, 2007
Progress in (Ga,Mn)As lithography has recently allowed us to realize structures where unique magnetic anisotropy properties can be imposed locally in various regions of a given device.
AG Baca, AW Rushforth, C Gould, C Gould, C Rüster, C Rüster, Charles Gould, DA Allwood, DD Awschalom, DV Baxter, F Matsukura, Georg Schmidt, GM Schott, HX Tang, J Wunderlich, J Åkerman, Jan Wenisch, JP Jan, K Pappert, Karl Brunner, Katrin Pappert, Laurens W. Molenkamp, M Yamanouchi, P Bruno, S Hümpfner, Silvia Hümpfner, TR McGuire   +26 more
core   +1 more source

Unraveling the metastasis‐preventing effect of miR‐200c in vitro and in vivo

Molecular Oncology, Volume 19, Issue 4, Page 1029-1053, April 2025.
Advanced tumors and ineffective cancer treatments can lead to metastases in distant organs. The sole expression of microRNA 200c (miR‐200c) in breast cancer cells is shown to significantly reduce metastasis formation in xenograft mouse models. Various in vitro analyses revealed impeded migratory behavior, upon miR‐200c expression, as one prerequisite ...
Bianca Köhler, Emily Brieger, Tom Brandstätter, Elisa Hörterer, Ulrich Wilk, Jana Pöhmerer, Anna Jötten, Philipp Paulitschke, Chase P. Broedersz, Stefan Zahler, Joachim O. Rädler, Ernst Wagner, Andreas Roidl   +12 more
wiley   +1 more source