Alterations in Sialic Acid Content of Human Transferrin

Parker, Weston; Bearn, Alexander G.

doi:10.1126/science.133.3457.1014

Cited by 58 publications

(19 citation statements)

References 14 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A reduction in the number of bands of low molecular weight plasma glycoproteins observed on starch gel electrophoresis due to enzymatic removal of its sialic acid has been reported earlier for ,82-mucoid (13,14), haptoglobins (15), and transferrin (16) and recently for a1-acid glycoprotein (2) and Zn-and Ba-a2-glycoproteins (17)(18)(19). In contrast, the starch gel electrophoretic patterns of the different cholinesterases do not change upon digestion with neuraminidase (20,21).…”

Section: Discussionmentioning

confidence: 87%

The α1-Acid Glycoprotein Variants of Normal Caucasian and Japanese Individuals*

Schmid¹,

Tokita²,

Yoshizaki³

1965

J. Clin. Invest.

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 87%

The α1-Acid Glycoprotein Variants of Normal Caucasian and Japanese Individuals*

Schmid¹,

Tokita²,

Yoshizaki³

1965

J. Clin. Invest.

View full text Add to dashboard Cite

“…Essentially two models for the magnetic field regime have been proposed to explain the transient decreases. Both the 'Magnetic tongue' model that has been developed by Dorman (1957) and Gold (1959) in which the magnetic field in the expanding cloud is stretched in the form of an ordered loop structure at the Earth and the 'Blast wave model' proposed by Parker (1961) in which the shock wave ahead of the plasma cloud plays a dominant role in producing transient decreases at the earth can qualitatively explain the Forbush decrease effects. Figure 38 shows the artistic sketch of the two models for the interplanetary magnetic field clouds proposed by Gold and Parker.…”

Section: Introductionmentioning

confidence: 99%

Solar modulation of galactic cosmic radiation

Rao

1972

Space Sci Rev

View full text Add to dashboard Cite

In this review an attempt is made to present an integrated view of the solar modulation process that cause time variation of cosmic ray particles. After briefly surveying the relevant large and small scale properties of the interplanetary magnetic fields and plasma, the motion of cosmic ray particles in the disordered interplanetary magnetic fields is discussed. The experimentally observed long term variations of different species of cosmic ray particles are summarised and compared with the theoretical predictions from the diffusion-convection model. The effect of the energy losses due to decelaration in the expanding solar wind are clearly brought out. The radial density gradient, the modulation parameter and their long term variation are discussed to understand the dynamics of the modulating region. The cosmic ray anisotropy measurements at different energies are summarised. At high energies (E> 1 GeV), the average diurnal anisotropy is shown to be energy independent and along the 18.00 h direction consistent with their undergoing partial corotation with the sun. The average semi-diurnal anisotropy seems to vary with energy as E +1 and incident from a direction perpendicular to the interplanetary field line, consistent with the semi-diurnal component being produced by latitudinal gradients. Both the diurnal and semi-diurnal components are shown to be practically time invariant. On a day to day basis, however, the anisotropy characteristics such as the exponent of variation, the amplitude and the phase show very high variability which are interpreted in terms of convection and variable field aligned diffusion due to the redistribution of the galactic cosmic ray density following transient changes in the interplanetary medium. The anisotropy observation at low energies (E< 100 MeV) are, however, not explained by the theory.The rigidity dependence and the anisotropies during short term variations such as Forbush decreases are discussed in terms of the proposed field models for the interplanetary field structure and are compared with the observed rigidity dependence of long term variations. The data pertaining to the 27 day corotating Forbush decreases and their association with enhanced diurnal variation are also presented. The relationship between the energetic storm particle events which are caused by the acceleration of particles in the shock fronts and the Forbush decreases which are caused by the exclusion of galactic particles by the enhanced field structure in the same fronts are clearly brought out. Thus the recurrent increases at low energies and recurrent decreases at high energies may both be caused by the field structure in the shock front. In conclusion, the properties of the very short period fluctuations (18-25 cph) are summarised.

show abstract

“…which corresponds to conservation of the whole energy behind the shock surface (blast wave) (Parker, 1961;Dryer, 1974;Dryer, et al, 1984). The observed dependence V s on r in the case of high speed shock waves is as a rule stronger than (3).…”

Section: Introductionmentioning

confidence: 91%

“…We shall use the perturbation method for the investigation of evolution of shock wave. Neglecting the turbulent terms in (13) for the zero approximation we obtain for the spherical case the known scaling solution (Parker, 1961) …”

Section: Turbulent Deceleration Of the Shock Wavementioning

confidence: 99%

“…Interplanetary shock waves of flare origin are investigated intensively by interplanetary scintillations and in situ methods (Vlasov, 1988;Watanabe and Kakinuma, 1984;Woo, et al, 1985;Watanabe, 1989;Woo and Schwenn, 1991). It is known from these data that the velocity of the shock front V s decreases with increasing of the distance from the Sun r V s <x r~a.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation