Showing 1-30 of 46 resultados for "gf19254472"
Rib development in chick embryos analyzed by means of tantalum foil blocks.
R M Sweeney et al.
The American journal of anatomy, 126(2), 127-149 (1969-10-01)
Hongbin Yu et al.
PloS one, 8(6), e66447-e66447 (2013-06-27)
We report a simple method to fabricate nano-porous tantalum oxide films via anodization with Ta foils as the anode at room temperature. A mixture of ethylene glycol, phosphoric acid, NH4F and H2O was used as the electrolyte where the nano-porous...
Xianfeng Yang et al.
Journal of the American Chemical Society, 131(34), 12048-12049 (2009-08-27)
A rutile microstructure with a novel cross-medal morphology was prepared via a hydrothermal method by using a Tantalum foil as both the doping source and the substrate. This rutile cross-medal prefers to grow along an unprecedented preferential orientation of <110>...
B L Holman et al.
Journal of nuclear medicine : official publication, Society of Nuclear Medicine, 19(5), 510-513 (1978-05-01)
The physical decay characteristics of the short-lived radionuclide Ta-178 (half-life 9.3 min) appear to be suitable for use in conjunction with low-energy detection systems such as the multiwire proportional camera. This camera is inefficient for emissions with energies greater than...
Observations on the use of tantalum foil in peripheral nerve surgery.
Journal of neurosurgery, 4(1), 69-71 (1947-01-01)
Ulrich Dorn et al.
The Journal of arthroplasty, 29(4), 831-835 (2013-10-09)
This study compared the corrosion behavior of tantalum-coated cobalt-chromium modular necks with that of titanium alloy modular necks at their junction to titanium-alloy femoral stem. Tests were performed in a dry assembly and two wet assemblies, one contaminated with calf...
Xiao-kang Tang et al.
Zhongguo gu shang = China journal of orthopaedics and traumatology, 26(7), 617-620 (2013-10-19)
Incorrect treatment for femur head necrosis can cause collapse of femoral head and tresult in severe harm for the patients (especially for the patient with middle-aged and young). The structure and mechanics characteristics of tantalum rod is similar to bone...
K Venkataraman et al.
Radiology, 137(1 Pt 1), 43-47 (1980-10-01)
Though thromboembolic complications are reportedly minimal in patients with Björk-Shiley aortic valve prostheses, massive thrombosis remains a major and often fatal problem. The authors observed massive thrombosis in 3 patients, only one of whom survived. In all three instances, the...
Clinical use of porous tantalum in complex primary total knee arthroplasty.
Neil P Sheth et al.
American journal of orthopedics (Belle Mead, N.J.), 38(10), 526-530 (2009-12-17)
The use of tantalum foil as a mechanical block for the separation of spinal cord and brain in chick embryos.
The Anatomical record, 94, 355-355 (1946-03-01)
[Tantalum dust as a contrast substance for laryngography and bronchography (a review of the literature)].
R M Rabinovich
Vestnik rentgenologii i radiologii, (1)(1), 77-79 (1981-01-01)
Metallosis and elevated serum levels of tantalum following failed revision hip arthroplasty--a case report.
George C Babis et al.
Acta orthopaedica, 85(6), 677-680 (2014-08-21)
Use of a tantalum foil tube to maintain patency of the nasofrontal duct.
A.M.A. archives of otolaryngology, 54(2), 167-171 (1951-08-01)
D M Smith et al.
Teratology, 54(3), 126-134 (1996-09-01)
Recent studies have demonstrated a link between limb reduction defects and mesonephros removal [Geduspan and Solursh, 1992) Dev. Biol., 151:242-250]. However, there is some question as to whether the limb-reduction defects seen in that study resulted from the removal of...
[The experimental and clinical studies on the anastomosis of the intercostal nerve to the splanchnic nerve by means of metal tantalum foil (an operative procedure on the so-called abdominal neurosis)].
S Bando
Kobe Ika Daigaku kiyo, 26(3), 98-112 (1964-07-01)
Brett Levine et al.
The Journal of the American Academy of Orthopaedic Surgeons, 14(12), 646-655 (2006-11-02)
Porous tantalum is an alternative metal for total joint arthroplasty components that offers several unique properties. Its high volumetric porosity (70% to 80%), low modulus of elasticity (3 MPa), and high frictional characteristics make it conducive to biologic fixation. Tantalum...
Radmila Panajotovic et al.
Radiation research, 165(4), 452-459 (2006-04-04)
We determined effective cross sections for production of single-strand breaks (SSBs) in plasmid DNA [pGEM 3Zf(-)] by electrons of 10 eV and energies between 0.1 and 4.7 eV. After purification and lyophilization on a chemically clean tantalum foil, dry plasmid...
Analysis of lithium in renal tubular fluid by atomic absorption spectrometry with use of tantalum foil.
P Boer et al.
The American journal of physiology, 268(6 Pt 2), F1229-F1231 (1995-06-01)
Tantalum foil pegs.
American journal of ophthalmology, 34(3), 444-444 (1951-03-01)
Paul S Issack
The Journal of bone and joint surgery. American volume, 95(21), 1981-1987 (2013-11-08)
➤ Over the past decade, porous tantalum has emerged as a powerful tool for reconstruction of the failed acetabular component.➤ The increased porosity, high coefficient of friction, and favorable elastic modulus of porous tantalum compared with traditional titanium mesh or...
T Y Hung et al.
Applied optics, 31(22), 4397-4404 (1992-08-01)
A simple four-element fused-silica lens is presented that has a focal length of 31.2 mm and a relative aperture of f/1 for use as a focusing lens for deep UV laser processing. The curvature of the lens is designed with...
M Rajani et al.
Acta radiologica: diagnosis, 24(5), 363-367 (1983-01-01)
Cineradiography is the most accurate and rapid method in evaluation of the function of Björk-Shiley prosthetic valves manufactured after late 1975 and which incorporate a tantalum foil hoop into the disc. This helps in demonstration of the disc and in...
Brett Levine et al.
The journal of knee surgery, 20(3), 185-194 (2007-08-02)
Porous tantalum represents an alternative metal for primary and revision total knee arthroplasty (TKA) with several unique properties. Tantalum is a transition metal, which in its bulk form has shown excellent biocompatibility and is safe to use in vivo as...
Brett Russell Levine et al.
Biomaterials, 27(27), 4671-4681 (2006-06-02)
Porous tantalum, a new low modulus metal with a characteristic appearance similar to cancellous bone, is currently available for use in several orthopedic applications (hip and knee arthroplasty, spine surgery, and bone graft substitute). The open-cell structure of repeating dodecahedrons...
Xinjian Feng et al.
Nano letters, 10(3), 948-952 (2010-02-12)
Tantalum nitride (Ta3N5) has a band gap of approximately 2.07 eV, suitable for collecting more than 45% of the incident solar spectrum energy. We describe a simple method for scale fabrication of highly oriented Ta3N5 nanotube array films, by anodization...
W H Borman et al.
Developmental dynamics : an official publication of the American Association of Anatomists, 200(1), 68-78 (1994-05-01)
Skeletal myogenesis in the chick embryo first occurs in the somite. Somites are transient, paired mesodermal structures adjacent to the neural tube. Somites form from the segmental plate mesenchyme at approximately 90-min intervals. We identify somitic myogenic cells by using...
Nilesh Patil et al.
Journal of biomedical materials research. Part B, Applied biomaterials, 89(1), 242-251 (2008-10-08)
Conventional porous-coated joint prostheses used in hip and knee reconstruction have demonstrated good clinical results, however, these implants possess some inherent shortcomings such as low volumetric porosity, suboptimal frictional characteristics, and higher modulus of elasticity relative to that of bone....
J G Sen Gupta
Talanta, 31(12), 1053-1056 (1984-12-01)
A 40-fold increase in sensitivity obtained by using a tantalum foil lining in a pyrolytically-coated graphite furnace permitted determination of low ppm levels of cerium in most silicate rocks. A preliminary preconcentration by oxalate and hydroxide co-precipitations was used before...
J Black
Clinical materials, 16(3), 167-173 (1993-12-09)
A detailed literature search was carried out to define the current knowledge about the biological performance of tantalum. The pure metal appears, to a great degree, to be inert both in vivo and in vitro. Both the pure metal and...
Arthroplasty of the temporomandibular joint in children with interposition of tantalum foil.
The Journal of bone and joint surgery. American volume, 28, 603-606 (1946-07-01)

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