Results 281 to 290 of about 107,251 (304)

Curvature-emergent supramolecular polymerization of a porphyrin dyad with a scissor-shaped motif. [PDF]

Chem Sci
Kawai R, Ogi S, Hanayama H, Kudo R, Yagai S.   +4 more
europepmc   +1 more source

Modeling Cut Rose Yield Over an 18-Month Period After Compost Amendment Using Repeated Sigmoidal Gompertz Curve Fitting. [PDF]

Plant Environ Interact
de Nijs EA, Tietema A, Bol R, van Loon EE.   +3 more
europepmc   +1 more source

How disconfirmatory evidence shapes confidence in decision-making. [PDF]

Commun Psychol
Boldt A, Sun Y, Desender K.
europepmc   +1 more source

Spinal cord stimulation using time-dynamic pulses achieves longer reversal of allodynia compared to tonic pulses in a rat model of neuropathic pain. [PDF]

Front Pain Res (Lausanne)
Zhu C, Jeong KS, Edhi M, Rogness V, Saab CY, Esteller R.   +5 more
europepmc   +1 more source

Mass spectrometry detects folding intermediates populated during urea-induced protein denaturation. [PDF]

Chem Sci
Österlund N, Jordan JS, Renzi E, Szekeres GP, Pagel K.   +4 more
europepmc   +1 more source

THE SIGMOIDAL INVESTMENT FUNCTION [PDF]

, 2008
Based on the investment theory of Abel and Eberly (1994), we develop an analytical model of adjustment costs, which produces a sigmoidal investment function. We also estimate the piecewise linear investment function, which includes as special cases linear models, models with one threshold, the original model of Abel and Eberly, which has two thresholds,
Yuzo Honda, Kazuyuki Suzuki
openaire   +1 more source

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Predator–prey model with sigmoid functional response

Studies in Applied Mathematics, 2023
AbstractThe sigmoid functional response in the predator–prey model was posed in 1977. But its dynamics has not been completely characterized. This paper completes the classification of the global dynamics for the classical predator–prey model with the sigmoid functional response, whose denominator has two different zeros.
Su, Wei, Zhang, Xiang
openaire   +1 more source

An application of Sigmoid and Double-Sigmoid functions for dynamic policyholder behaviour

Decisions in Economics and Finance, 2020
In the context of risk-based valuation of insurance contracts, the paper provides an extension of the dynamic lapse rate models, proposed in the literature and by regulators, using a double-sigmoid curve. The model is based on an economic assumption, in accordance with the description of policyholder behavior currently well established in the insurance
Baione F., Biancalana D., De Angelis P.
openaire   +2 more sources

Sigmoid functional responses and population stability

Theoretical Population Biology, 1978
Abstract Sigmoid functional responses are known to stabilize the differential Lotka-Volterra predator-prey model. However, we have found that they have no such effect in a comparable discrete generation model. The difficulty in stabilizing this model results from the one-generation time delay between changes in predator population density and the ...
Hassell, M. P., Comins, H. N.
openaire   +2 more sources