نتایج جستجو برای: electron detachment
تعداد نتایج: 321826 فیلتر نتایج به سال:
Changes in the surface coat of mesenchymal cells of mouse limb buds after enzymatic cell separation.
Isolation of cells is nowadays performed by enzymatic means. The influence of such enzymes on the surface coat of mesenchymal and blastemal cells during the dissociation of limbs buds from 11-day-old mouse embryos was studied electron microscopically after staining with ruthenium red. EGTA or collagenase failed to bring about cell separation. The surface coat seemed to be unchanged after collag...
In experimental retinal detachment of the owl monkey we observed the formation of preretinal and subretinal membranes which had cellular connections to the retina proper. Based on light microscopic findings we concluded that retinal cells grow out of the retina and build up the preretinal and subretinal tissue. Electron microscopically these cells are identified as astrocytes which grow out thr...
Department of Mechanical Engineering, The University of Tokyo 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656, Japan Received 31 December 2005; in final form 20 February 2006 Abstract A method for detachment of vertically aligned single-walled carbon nanotube (VA-SWNT) films from substrates simply using hot water has been developed. The VA-SWNT films were peeled off spontaneously by submersing the subst...
The effect of 3,3'-iminodipropionitrile (IDPN) on experimental intravitreal proliferation in albino rabbits was studied by light and electron microscopy. About 2.5 x 10(5) tissue cultured fibroblasts were injected into the vitreous cavity of albino rabbits. Immediately after the injection, phosphate-buffered solution (PBS) or IDPN was injected into the vitreous cavity. Four weeks later, tractio...
A series of ion storage experiments on small carbon cluster anions was conducted to understand size-dependent cooling processes. The laser-induced delayed electron detachment time profile show clear even/odd alternation due to the presence of the electronic cooling. The time evolution of the internal energy distribution was simulated for Cn (n=4 to 7) with a common procedure taking vibrational ...
PURPOSE To determine the effect of alkylphosphocholines (APCs) on intraretinal proliferation induced by experimental retinal detachment in the rabbit. METHODS Retinal detachments were created in adult pigmented rabbits. APCs, either liposome bound (liposome, L-APC) or unbound (free, F-APC), were injected intravitreally on either day 1 or day 2 after detachment. BrdU was injected on day 3, 4 h...
Reactive collisions between O(-) and H2 have been studied experimentally at temperatures ranging from 10 K to 300 K using a cryogenic radiofrequency 22-pole ion trap. The rate coefficients for associative detachment, leading to H2O + e(-), increase with decreasing temperature and reach a flat maximum of 1.8 × 10(-9) cm(3) s(-1) at temperatures between 20 K and 80 K. There, the overall reaction ...
The electronic and vibrational structures of Au2Al2(-) and Au2Al2 have been investigated using photoelectron spectroscopy (PES), high-resolution photoelectron imaging, and theoretical calculations. Photoelectron spectra taken at high photon energies with a magnetic-bottle apparatus reveal numerous detachment transitions and a large energy gap for the neutral Au2Al2. Vibrationally resolved PE sp...
The characteristics of the JT-60U detached divertor plasma in the SONIC simulation are investigated. With increasing mid-plane density, the electron temperature at the divertor decreases and the ion flux to the divertor plate increases. At higher densities, the temperature becomes less than 1 eV. However, rollover of the ion flux at the divertor plate, which is a characteristic of the detachmen...
exudative retinal detachment (erd) may be seen with many ocular pathologies including malignancies. among malignant causes, metastases of breast and lung carcinoma are most common. a 50-year-old woman referred to our clinic with history of decreased visual acuity in her right eye since 3 months before referral. the visual acuity was counting fingers at 2 meters and 6/10 in the right and left ey...
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