Results 171 to 180 of about 47,144 (218)
Aging Is a Key Driver for Adult Acute Myeloid Leukemia
Acute myeloid leukemia (AML) is a classical age‐related hematologic malignancy, and a key driver of AML is aging, which profoundly regulates intrinsic factors such as genomic instability, epigenetic reprogramming, and metabolic dysregulation, and alters bone marrow microenvironment.
Rong Yin, Haojian Zhang
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Estimating population size in emergencies.
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Estimating the Size of a Transient Population
Biometrics, 1999Summary. Migratory populations often stop over for short periods of time at predictable sites along their migration routes. These staging areas can be heavily used and are potentially critical to the survival of the migrants. This paper presents a method for estimating the number of individuals using such an area and their average residence time.
Routledge, R. D. +5 more
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On the Nonidentifiability of Population Sizes
Biometrics, 2008Summary When a nonparametric mixture model is adopted to deal with the heterogeneity among individual capture probabilities, the population size is nonidentifiable (Link, 2003, Biometrics59, 1123–1130). Holzmann, Munk, and Zucchini (2006, Biometrics62, 934–936) discussed the conditions under which a subfamily of mixing distributions is identifiable ...
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Effective population size of a population with stochastically varying size
Journal of Mathematical Biology, 2009For a Wright-Fisher model with mutation whose population size fluctuates stochastically from generation to generation, a heterozygosity effective population size is defined by means of the equilibrium average heterozygosity of the population. It is shown that this effective population size is equal to the harmonic mean of population size if and only if
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Bequests and the Size of Population When Population is Endogenous
Journal of Political Economy, 1984The consequences of interfamily bequests and endogenous population size for optimal and competitive population sizes and bequests are explored when individuals' utility is a function of own consumption, the number of children, and the welfare of their children.
Nerlove, Marc +2 more
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On the Choice of the Parent Population Size
Evolutionary Computation, 2008Evolutionary algorithms (EAs) are population-based randomized search heuristics that often solve problems successfully. Here the focus is on the possible effects of changing the parent population size in a simple, but still realistic, mutation-based EA. It preserves diversity by avoiding duplicates in its population.
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Population size and environmental quality
Journal of Population Economics, 1997This paper presents a simple general equilibrium analysis of first best allocations in an economy where a consumption good is produced using labor. Production results in pollution, which is a public bad. Pollution abatement can be achieved either by restricting production or by using additional labor.
Till Requate, Mark B. Cronshaw
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Population Size in Differential Evolution
2020In this paper we examined how the population size affects the performance of the differential evolution algorithm. First, we tested the original differential evolution algorithm, and then the improved self-adaptive differential evolution algorithm, on ten benchmark functions, that have been proposed for the CEC 2019 competition.
Amina Alic +3 more
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Population size and rate of evolution
Journal of Molecular Evolution, 1972It is suggested that in evolution there is much substitution of nearly neutral mutations, for which the selection intensity varies from time to time or from region to region. Since the variance among the selection coefficients of new mutants decreases when the environment becomes uniform, the probability of a mutant being advantageous to the species as
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