Peterlin

The streaming birefringence exhibits saturation effects when the extinction angle x approaches zero as the particles are as much as possible oriented in the flow direction. But the orientation is dynamic as the prolate particles possess the slowest rotational velocity in the flow direction. Hence they remain for a much 

The initial values [Z ] and x = 5° corresponding to a 0 immediately apply to low molecular weight liquids. As a consequence of the much oversimplified application of an isolated particle theory to the pure liquid the parameters p and - CX2 (optical anisotropy of the molecule) are effective values of the molecule which may substantially differ from those obtained in the gas phase. 

The non-linear dependence of osmotic pressinre of the monomer on concentration yields in first approximation a finite second virial coefficient A2- Its introduction in the spatial distribution function of monomers of a randomly coiled linear polymer yields for the the mean square of the end-to-end distance, h, in addition to the conventional linear term propostional to M a term proportional to 1/210 Repeated application of this procedure on longer and larger sections of the chain yields h proportional to with 

Zimm s model with isotropic and constant hydrodynamic interaction yields a system of partial linear differential equations which can be separated into a system of Z independent partial differential equations by introduction of normaJ. coordinates. The mathematical problem is the simultaneous diagonalization of the matrices of hydrodynamic interaction H and of the product HA where A is the singular symmetric matrix of elastic forces between any two beads. The definite positive symmetric matrix H can be expressed as the square of a symmetric matrix C and the symmetric 

The product g = Cy performs the desired diagonalization yielding A = M in contrast to the old guess that M equals A of Rouse s model without hydrodynamic interaction. The values of intrinsic viscosity at zero gradient and zero frej uency are not affected by this result. But the values at finite y or O) are modified as soon as internal viscosity is considered. 

---

Adams M, Sharmeen L, Kimpton J, Romeo JM, Garcia JV, Peterlin BM, Groudine M, Emerman M (1994) Cellular latency in human immunodeficiency virus-infected individuals with high CD4 levels can be detected by the presence of promoter-proximal transcripts. Proc Natl Acad Sci USA 91(9) 3862-3866... 

Jenkins M, Hanley MB, Moreno MB, Wieder E, McCune JM (1998) Human immunodeficiency irus-l infection interrupts thymopoiesis and multilineage hematopoiesis in vivo. Blood 91(8) 2672-2678 Jones KA, Peterlin BM (1994) Control of RNA initiation and elongation at the HIV-1 promoter. Annu Rev Biochem 63 717-743... 

Tong-Starksen SE, Luciw PA, Peterlin BM (1987) Human immunodeficiency virus long terminal repeat responds to T-cell activation signals. Proc Natl Acad Sci USA 84(19) 6845-6849 Tornatore C, Chandra R, Berger JR, Major EO (1994) HIV-1 infection of subcortical astrocytes in the pediatric central nervous system. Neurology 44(3 Pt l) 481-487... 

H Yasuda, A Peterlin, CK Colton, KA Smith, EW Merrill. Permeability of solutes through hydrated polymer membranes HI. Theoretical background for the selectivity of dialysis membranes. Makromol Chem 126 177-186, 1969. 

H Yasuda, CE Lamaze, A Peterlin. Diffusive and hydraulic permeabilities of water in water-swollen polymer membranes. J Polym Sci A-2 9 1117-1131, 1971. 

Consequently, we will follow the example of Mills et al. (29) who recently presented the first measurements of local solvent concentration using the Rutherford back-scattering technique. They analyzed the case of 1,1,1-trichloroethane (TCE) diffusing into PMMA films in terms of a simpler model developed by Peterlin 130-311, in which the propagating solvent front is preceded by a Fickian precursor. The Peterlin model describes the front end of the steady state SCP as ... 

---