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On biomass diversity in ecology
Springer Science and Business Media LLC - Tập 45 - Trang 287-293 - 1983
Checkpoint method for choice recovery in dynamic programming
Springer Science and Business Media LLC - Tập 67 - Trang 719-736 - 2005
Many dynamic programming algorithms consist of a ‘forward pass’ computation to optimize a cost function, followed by a ‘choice recovery’ computation to construct a configuration that optimizes the cost function. ‘Checkpointing’ is a method to perform choice recovery using limited storage. During a forward pass, checkpoints in an optimal configuration are identified. Then recursion is used to fill ......
No Oscillations in Real Activator–Inhibitor Systems in Accomplishing Pattern Formation
Springer Science and Business Media LLC - Tập 74 - Trang 2265-2267 - 2012
Adaptive evolution on neutral networks
Springer Science and Business Media LLC - Tập 63 Số 4 - Trang 715-730 - 2001
We study the evolution of large but finite asexual populations evolving in fitness landscapes in which all mutations are either neutral or strongly deleterious. We demonstrate that despite the absence of higher fitness genotypes, adaptation takes place as regions with more advantageous distributions of neutral genotypes are discovered. Since these discoveries are typically rare events, the populat......
Two Novel Closure Rules for Constructing Phylogenetic Super-Networks
Springer Science and Business Media LLC - - 2008
A Stochastic Spatial Dynamical Model for Aedes Aegypti
Springer Science and Business Media LLC - Tập 70 - Trang 1297-1325 - 2008
We develop a stochastic spatial model for Aedes aegypti populations based on the life cycle of the mosquito and its dispersal. Our validation corresponds to a monitoring study performed in Buenos Aires. Lacking information with regard to the number of breeding sites per block, the corresponding parameter (BS) was adjusted to the data. The model is able to produce numerical data in very good agreem......
Topological biology: A note on Rashevsky's transformation T.
Springer Science and Business Media LLC - Tập 19 - Trang 19-21 - 1957
In the bio-topological transformation between graphs denoted by (T
(1)
X) N. Rashevsky (Bull. Math. Biophysics,18, 173–88, 1956) considers the number of fundamental sets which (a) have only one specialized point as source (and no other sources), (b) have no points in common (are “disjoined”); he proves that this number is an invariant of the transfor......
Statistical Analysis of Two-Compartment Pharmacokinetic Models with Drug Non-adherence
Springer Science and Business Media LLC - Tập 85 - Trang 1-32 - 2023
Poor drug adherence is considered one of major barriers to achieving the clinical and public health benefits of many pharmacotherapies. In the current paper, we aim to investigate the impact of dose omission on the plasma concentrations of two-compartment pharmacokinetic models with two typical routes of drug administration, namely the intravenous bolus and extravascular first-order absorption. Fi......
Persistence and Spread of Gastro-Intestinal Infections: the Case of Enterotoxigenic Escherichia coli in Piglets
Springer Science and Business Media LLC - Tập 70 - Trang 2077-2101 - 2008
Several gastro-intestinal infections in animal husbandry not only greatly reduce the well-being of animals, but also have the potential to cause large economical damage. Understanding of the dynamics of such diseases is thus of great importance. In this paper, we focus on within-host dynamics and present a model describing the dynamics of pathogens in the intestine of a single host. Our motivation......
A dynamic numerical method for models of renal tubules
Springer Science and Business Media LLC - Tập 56 Số 3 - Trang 547-565 - 1994
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