We present hole drift-mobility measurements on hydrogenated amorphous silicon from several laboratories. These temperature-dependent measurements show significant variations of the hole mobility for the differing samples. Under standard conditions (displacement/field ratio of 2×10 cm/V), hole mobilities reach values as large as 0.01 cm/Vs at room-temperature; these values are improved about ten...

The role of reduced dimensionality and of the surface on electron-phonon (e-ph) coupling in silicon nanowires is determined from first principles. Surface termination and chemistry is found to have a relatively small influence, whereas reduced dimensionality fundamentally alters the behavior of deformation potentials. As a consequence, electron coupling to "breathing modes" emerges that cannot ...

Cultured bovine aortic endothelial cells and human serum contain plasminogen activator inhibitors (PAls) that are immunologically related. In the present study. the electrophoretic mobilities. molecular weights (mol wt). and activities of these PAls were compared. When fractionated by agarose zone electrophoresis. both PAls migrated with /9 mobility as compared with the mobilities of human plas...

The regular Einstein relation, connecting the coefficient of ambipolar diffusion and the Dember field with mobilities, is generalized for the case of an interacting electron-hole plasma. The calculations are presented for a nondegenerate plasma injected by light into semiconductors of silicon and germanium type. The Debye-Huckel correlation and the Wigner-Seitz exchange terms are considered. Co...

The molecular weight of the major glycoprotein from the human erythrocyte membrane is 29,000, of which 55% is carbohydrate and 45% is protein. The binding of sodium dodecyl sulfate to this glycoprotein is anomalous when compared to water soluble proteins and leads to migration rates in sodium dodecyl sulfate-polyacrylamide gels that cannot be interpreted in terms of molecular weight. Anomalous ...

Studyof 313 plasma electrophoretic patterns from 158 hospitalized subjects revealed that 30 per cent of these patients exhibited a heterogeneity marked by occurrence of double peaks in the alpha-2 and 6 per cent in the beta globulin fraction. Occurrence of double peaks could not be related to any specific disease. Similar study of plasma from 18 normal adult subjects did not reveal double peaks...

We look at the magnetic field induced weak localisation peak of graphene samples with different mobilities. At very low temperatures, low mobility samples exhibit a very broad peak as a function of the magnetic field, in contrast to higher mobility samples, where the weak localisation peak is very sharp. We analyze the experimental data in the context of the localisation length, which allows us...

1. The concentration of Bromophenol Blue used as tracking dye in polyacrylamide-gel electrophoresis affected the resolution of rat neurophysins. 2. A final dye concentration of 1 p,g/ml in the tris-glycine running buffer was found to give the best results. 3. The presence oftwo major and one minor neurophysin(s) in the rat was confirmed. 4. The two major proteins were found to re-run as single ...

Many chemists are not familiar with the problem of the liquid junction potential (LJP) between electrolyte solutions in different solvents. Some even misunderstand it. Therefore, it seems worthwhile to write a review article on this subject. The LJP between electrolyte solutions in different solvents consists of three components: i.e., (a) a component related to electrolyte concentrations and i...