Results 31 to 40 of about 30,188 (257)

Stochastic dynamics and logistic population growth [PDF]

Physical Review E, 2015
14 pages, 8 figures, accepted for publication in Phys.
Méndez, Vicenç, Assaf, Michael, Campos, Daniel, Horsthemke, Werner   +3 more
openaire   +3 more sources

Stability and Bifurcations in a Discrete-Time Eco-Evolutionary Logistic Model

Mathematics
In this paper I study a two-dimensional discrete-time evolutionary logistic-type model describing the coupled dynamics of population density and a continuously evolving trait.
Rafael Luís
doaj   +1 more source

Hopf bifurcation of an age-structured HIV infection model with logistic target-cell growth

Journal of Biological Dynamics, 2019
In this paper, we investigate an age-structured HIV infection model with logistic growth for target cell. We rewrite the model as an abstract non-densely defined Cauchy problem and obtain the condition which guarantees the existence of the unique ...
Zhong-Kai Guo, Hai-Feng Huo, Hong Xiang
doaj   +1 more source

Planktic foraminiferal diversity: logistic growth overprinted by a varying environment [PDF]

, 2016
This study statistically assesses the relationship between the planktic foraminiferal long-term diversity pattern (~170 Ma to Recent) and four major paleobiological diversification models: (i) the ‘Red Queen’ (Van Valen, 1973; Raup et al., 1973), (ii ...
Harries, Peter J., Harries, P.J., Cárdenas-Rozo, A.L., Andrés L. Cárdenas-Rozo, Cárdenas-Rozo, Andrés L., Peter J. Harries   +5 more
core   +1 more source

Long-Run Forecasting of Emerging Technologies with Logistic Models and Growth of Knowledge [PDF]

, 2009
Organised by: Cranfield UniversityIn this paper applications of logistic S-curve and component logistics are considered in a framework of longterm forecasting of emerging technologies.
Schenk, Eric, De Guio, R., R. De Guio, Schenk, E., E. Schenk, Kucharavy, D., Kucharavy, Dmitry, D. Kucharavy, De Guio, Roland   +8 more
core  

Gut microbiome and aging—A dynamic interplay of microbes, metabolites, and the immune system

FEBS Letters, EarlyView.
Age‐dependent shifts in microbial communities engender shifts in microbial metabolite profiles. These in turn drive shifts in barrier surface permeability of the gut and brain and induce immune activation. When paired with preexisting age‐related chronic inflammation this increases the risk of neuroinflammation and neurodegenerative diseases.
Aaron Mehl, Eran Blacher
wiley   +1 more source

Formation of the introduced coenopopulation of Crocus reticulatus on the botanical-geographical plot “Steppes of Ukraine” at the M. M. Gryshko National Botanical Garden of the NAS of Ukraine

Інтродукція Рослин, 2020
The research was carried out during Crocus reticulatus flowering time in 2002–2020 at the botanical-geographical plot “Steppes of Ukraine” of the M.M. Gryshko National Botanical Garden, National Academy of Sciences of Ukraine (NBG).
Victoria Gritsenko
doaj   +1 more source

Decomposing CO2 emissions data into a pair of logistic growth pulses

, 2010
Numerous scenarios of emissions growth presume that it can not grow infinitely: there are certain limits that may not or must not be exceeded. Applying the theory of pulsing logistic growth, I detected two pulses of logistic growth.
Gleb G. Alexandrov
core   +1 more source

Pre‐analytical optimization of cell‐free DNA and extracellular vesicle‐derived DNA for mutation detection in liquid biopsies

Molecular Oncology, EarlyView.
Pre‐analytical handling critically determines liquid biopsy performance. This study defines practical best‐practice conditions for cell‐free DNA (cfDNA) and extracellular vesicle–derived DNA (evDNA), showing how processing time, storage conditions, tube type, and plasma input volume affect DNA integrity and mutation detection.
Jonas Dohmen, Lucrezia De Santis, Bret M. Stephens, Vincent Bernard, Jörg C. Kalff, Lara Braun, Phillipp Leyendecker, Johannes Röttgen, Daniel Weissinger, Anirban Maitra, Paola A. Guerrero, Alexander Semaan   +11 more
wiley   +1 more source

Patient therapy outcome modeling in cancer organoids is improved by cancer‐associated fibroblasts and organoid assembly convolution

Molecular Oncology, EarlyView.
Patient‐derived organoids (PDOs) from pancreatic, colorectal, and gastric cancers were used to evaluate standard and experimental therapies. Incorporating cancer‐associated fibroblasts (CAFs) into organoid cultures improved patient therapy outcome prediction.
Marcin Grochowski, Liudmyla Dolinchuk, Michał Jerzak, Albert Gandurski, Tomasz Grochowski, Weronika Wojtyś, Maciej Zadrożny, Wojciech Kaźmierczak, Małgorzata Lenarcik, Marta Matejak‐Górska, Radosław Samsel, Tomasz Olesiński, Dawid Walerych   +12 more
wiley   +1 more source