Fc (IgG) receptor distributions in homogeneous and heterogeneous cell populations by flow microfluorometry.

Fc (IgG) receptor distributions in homogeneous and heterogeneous cell populations by flow microfluorometry.

A flow microfluorometric method has been developed for quantitating the numbers of Fc receptors on individual cells. The cells were equilibrated at 0 degrees C with radiolabeled, affinity-crosslinked rabbit IgG dimers, washed, and treated with fluorescent antibodies against rabbit IgG. The stained cells were analyzed for fluorescence emission by using a fluorescence-activated cell sorter and fo...

Mathematical Analysis of Dna Distributions Derived from Flow Microfluorometry

The development of flow microfluorornetric (FMF) techniques (Van Dilla et al ., 1969 ; Kraemer et al ., 1972) for the measurement of DNA content of single cells at high rates (> 20,000/ min) has permitted a statistical precision and sensitivity not obtainable previously . It has opened up new approaches to cell characterization in general and to life cycle analysis in particular. This paper pre...

Shocks in homogeneous and heterogeneous populations

A system subject to a point process of shocks is considered. Shocks occur in accordance with a non-homogeneous Poisson process. Different criterions of system failures are discussed in a homogeneous case. Two natural settings are analyzed. Heterogeneity is modeled by an unobserved univariate random variable (frailty). It is shown that reliability (safety) analysis for a heterogeneous case can d...

High Affinity Receptor for IgG (Fc

The Low Affinity Fc Receptor for IgG