Results 31 to 40 of about 117,052 (250)
Logistic equation on time scales
Examples and CounterexamplesWe propose a new dynamic logistic equation that, in contrast with the one available in the literature, preserves the non-negativity of its solutions, which is an essential property for biological meaning.
Márcia Lemos-Silva, Delfim F.M. Torres
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Introducing time delay in the evolution of new technology: the case study of nanotechnology
Journal of the Mechanical Behavior of Materials, 2013 Starting with Feynman’s “There’s Plenty of Room at the Bottom” prophetic lecture at Caltech in the 1960s, the term “nanotechnology” was first coined in the scientific literature in the 1980s.
Georgalis Evangelos E. +1 more
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Logistic Function as a Tool of Planning
Foundations of Management, 2014 In the present paper, we propose a new approach to investigate the logistic function, which is commonly used in mathematical models in economics and management.
Rządkowski Grzegorz +2 more
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On the fractional-order logistic equation
Applied Mathematics Letters, 2007 The authors investigate the fractional-order logistic equation. They study the stability, existence, uniqueness and numerical approximation of a solution.
A. M. A. El-Sayed +2 more
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Fractional-Order Logistic Differential Equation with Mittag–Leffler-Type Kernel
Fractal and Fractional, 2021 In this paper, we consider the Prabhakar fractional logistic differential equation. By using appropriate limit relations, we recover some other logistic differential equations, giving representations of each solution in terms of a formal power series ...
Iván Area, Juan J. Nieto
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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 +11 more
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Liquid biopsy‐based diagnostic evaluation of hypermethylated CpG sites for ovarian cancer diagnosis
Molecular Oncology, EarlyView.This schematic outlines the workflow from biomarker identification to duplex MethyLight assay validation for epithelial ovarian cancer diagnosis using cfDNA‐based liquid biopsy. Initial screening of hypermethylated CpG candidates (cg02957270, cg10061138 cg00480298, COL2A1) was performed in tissue using ARMS‐PCR, COBRA, qPCR and image analysis. Selected
Deepa Bisht +3 more
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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 +12 more
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Derivation and characterization of retinal pigment epithelium from urine‐derived iPSCs
FEBS Open Bio, EarlyView.Age‐related macular degeneration causes vision loss via RPE dysfunction and loss. Traditional iPSC therapies rely on invasive biopsies, limiting scalability. Here, we utilize urine‐derived stem cells as an accessible source to generate u‐iPSCs, successfully differentiated into pigmented RPE. This “Urine‐to‐Retina” platform provides a promising path for
Daniella Beiner +7 more
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Local Dynamics of a Logistic Equation with Delay
Моделирование и анализ информационных систем, 2014 We considered a logistic equation with delay and studied its local dynamics. The critical cases have been found in the problem of the equilibrium state stability. We applied standard Andronov-Hopf biffurcation methods for delay differential equations and
S. V. Aleshin, S. A. Kaschenko
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