Zobrazeno 1 - 9
of 9
pro vyhledávání: '"J I, Polanco"'
Publikováno v:
The Biochemical journal. 357(Pt 2)
Apolipoprotein E (apoE) is a protein involved in reverse cholesterol transport. Among other tissues, apoE is expressed in macrophages where its expression increases when macrophages develop into foam cells. It has been recently shown that peroxisome-
Publikováno v:
The Anatomical record. 249(2)
Insulin-like growth factor-I (IGF-I) is a peptide growth factor whose biological effects are mediated through a specific receptor (IGF-IR). IGF-I and IGF-IR are detected in both fetal and adult kidneys and have both metabolic and growth effects. IGF-
Autor:
J I Polanco, R H Williams
Publikováno v:
Journal of Physics C: Solid State Physics. 7:2745-2759
Photoemission studies in the energy range up to 11 eV of cleaved trigonal crystals and evaporated films of selenium and tellurium prepared in a variety of ways, are described. Photoelectric yields, thresholds and work functions have been established.
Autor:
R H Williams, J. I. Polanco
Publikováno v:
physica status solidi (b). 65:571-575
Photoelectric yield and energy distribution curves for photon energies up to 11 eV, have been studied for evaporated sulphur films. For clean films the threshold occurs at 7.2 eV. The EDC's, as well as the form of the yield near threshold, agree well
Publikováno v:
Philosophical Magazine. 25:117-130
It is shown that measurements of a.c. and d.c. conductivity in undoped amorphous As2S3 films differ in several respects from those reported in other chalcogenide glasses. Experiments show conclusively that the a.c. lows in this material are due to a
Autor:
J. I. Polanco, G. G. Roberts
Publikováno v:
Physica Status Solidi (a). 13:603-606
Autor:
G. G. Roberts, J. I. Polanco
Publikováno v:
Physica Status Solidi (a). 1:409-420
A tunnelling mechanism is described which considers the situation where the major contribution to the tunnelling integral comes, not from the region of the Fermi level, but from an energy position located some way above this energy. At the same time