Now showing items 101-110 of 166
A note on chain-binomial models of epidemic spread: What is wrong with the Reed-Frost formulation?
(Elsevier, 1987-11)
Derivations of the Reed-Frost model are analyzed in terms of the assumptions about the probabilistic process used and in terms of internal consistency. Internally consistent derivations can be exhibited but require assumptions ...
Tissue engineering of a bioartificial kidney
(Wiley Subscription Services, Inc., A Wiley Company, 1994-03-25)
Tissue engineering is a rapidly growing field in biotechnology. The use and packaging of synthetic materials, biologic compounds, and cellular components of specific tissues can be envisioned to replace physiologic function ...
How to determine the compatibility of undirected character state trees
(Elsevier, 1979-10)
Methods for cladistic character compatibility analysis have required a priori estimates of the direction of evolutionary trends among the states of a character, in order to ensure consistency. Results are presented here ...
In vitro colony formation by cryopreserved primary human tumor cells
(Elsevier, 1984-06)
The effect of cryopreservation on the ability of primary human cancer cells to form colonies in a two-layer agar system was examined. Although considerable variation occurred, concentrations of 5 or 10% dimethylsulfoxide ...
Use of coimmobilized biological systems to degrade toxic organic compounds
(Wiley Subscription Services, Inc., A Wiley Company, 1991-07)
The concept of coimmobilizing cell mass (and/or enzyme) and adsorbent in a hydrogel matrix for biodegradation of toxic organic chemicals was introduced. Under defined experimental conditions, the coimmobilized system using ...
A global strategy for nonlinear least squares
(Elsevier, 1970-02)
A general strategy for attacking problems in nonlinear least squares is developed. Parameters are classified as linear or nonlinear, depending on whether they appear linearly or nonlinearly in the functional expression ...
Strategies for representing metabolic pathways within biochemical systems theory: Reversible pathways
(Elsevier, 1989-06)
The search for systematic methods to deal with the integrated behavior of complex biochemical systems has over the past two decades led to the proposal of several theories of biochemical systems. Among the most promising ...
Functional differential equations and age dependent population growth
(Elsevier, 1972-08)
Growth equations are established for a population of individuals that have fixed age dependent reproduction and mortality rates. Equations are obtained both for the population density and for the numerical size of the ...
Unilineage model of hematopoiesis predicts self-renewal of stem and progenitor cells based on ex vivo growth data
(Wiley Subscription Services, Inc., A Wiley Company, 1996-10-05)
Stem cell models are used to describe the function of several tissues. We present unilineage kinetic description of stem cell models and their application to the analysis of ex vivo hematopoietic cell expansion data. This ...