نتایج جستجو برای: outflow

تعداد نتایج: 19313  

2008
Xuepeng Chen Anne Dutrey Stéphane Guilloteau Thomas Henning Vincent Piétu Katharina Schreyer Dmitry Semenov

Context. The disk-outflow connection is thought to play a key role in extracting excess angular momentum from a forming proto-star. Though jet rotation has been observed in a few objects, no rotation of molecular outflows has been unambiguously reported so far. Aims. We report new millimeter-interferometric observations of the edge-on T Tauri star – disk system in the isolated Bok globule CB 26...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 1994
M G Giovannini D Mutolo L Bianchi A Michelassi G Pepeu

The modulation of the septohippocampal cholinergic pathway by glutamatergic or GABAergic inputs was studied by monitoring the outflow of ACh collected via a transversal microdialysis probe implanted into the hippocampus and other brain areas of freely moving rats. In one set of experiments a transversal microdialysis membrane was inserted in the dorsal hippocampus, drugs were administered intra...

Journal: :Journal of the American College of Cardiology 2007
Victor Bautista-Hernandez Gerald R Marx Emile A Bacha Pedro J del Nido

OBJECTIVES The goal of our study was to report our intermediate-term results with aortic root translocation plus arterial switch for d-transposition of the great arteries with left ventricular outflow tract obstruction. BACKGROUND A d-transposition of the great arteries with left ventricular outflow tract obstruction represents a difficult surgical problem. The Rastelli procedure is the usual...

Journal: :Biomedizinische Technik. Biomedical engineering 2009
Konstantin E Kotliar Tatiana V Kozlova Ines M Lanzl

To evaluate the possible postoperative outflow from the anterior chamber of the eye after filtration surgery, a mathematical model based on fluid mechanical principles and clinical data is proposed. Two ophthalmic surgical procedures, non-penetrating deep sclerectomy and trabeculectomy, were analyzed. Based on mathematical modeling, the amount of postoperative outflow through the fistula (after...

Journal: :Investigative ophthalmology & visual science 2008
Stephanie A Battista Zhaozeng Lu Sara Hofmann Thomas Freddo Darryl R Overby Haiyan Gong

PURPOSE To understand how hydrodynamic and morphologic changes in the aqueous humor outflow pathway contribute to decreased aqueous humor outflow facility after acute elevation of intraocular pressure (IOP) in bovine eyes. METHODS Enucleated bovine eyes were perfused at 1 of 4 different pressures (7, 15, 30, 45 mm Hg) while outflow facility was continuously recorded. Dulbecco PBS + 5.5 mM glu...

2008
Chang Hyun Baek Jongsoo Kim

High-resolution SiO observations of the NGC 1333 IRAS 4A star-forming region showed a highly collimated outflow with a substantial deflection. The deflection was suggested to be caused by the interactions of the outflow and a dense cloud core. To investigate the deflection process of protostellar outflows, we have carried out threedimensional hydrodynamic simulations of the collision of an outf...

2016
Robert H. Anderson Shumpei Mori Diane E. Spicer Nigel A. Brown Timothy J. Mohun

It is customary, at the current time, to consider many, if not most, of the lesions involving the ventricular outflow tract in terms of conotruncal malformations. This reflects the introduction, in the early 1940s, of the terms conus and truncus to describe the components of the developing outflow tract. The definitive outflow tracts in the postnatal heart, however, possess three, rather than t...

2017
Susannah Waxman Ralitsa T. Loewen Yalong Dang Simon C. Watkins Alan M. Watson Nils A. Loewen

Purpose:​​ ​The​ ​rate​ ​of​ ​conventional​ ​aqueous​ ​humor​ ​outflow​ ​is​ ​the​ ​highest​ ​nasally.​ ​We hypothesized​ ​that​ ​this​ ​is​ ​reflected​ ​in​ ​regionally​ ​different​ ​outflow​ ​structures​ ​and​ ​analyzed​ ​the​ ​entire limbus​ ​by​ ​high-resolution,​ ​full-thickness​ ​ribbon-scanning​ ​confocal​ ​microscopy​ ​(RSCM). Methods:​​ ​We​ ​perfused​ ​pig​ ​eyes​ ​by​ ​anterior​ ​cha...

Journal: :American journal of physiology. Cell physiology 2015
Jason Y H Chang W Daniel Stamer Jacques Bertrand A Thomas Read Catherine M Marando C Ross Ethier Darryl R Overby

Elevated intraocular pressure (IOP) is the main risk factor for glaucoma. Exogenous nitric oxide (NO) decreases IOP by increasing outflow facility, but whether endogenous NO production contributes to the physiological regulation of outflow facility is unclear. Outflow facility was measured by pressure-controlled perfusion in ex vivo eyes from C57BL/6 wild-type (WT) or transgenic mice expressing...

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