Results 141 to 150 of about 4,761,459 (294)
Common Correlation and Calibrating the Lognormal Forward Rate Model [PDF]
1997 three papers that introduced very similar lognormal diffusion processes for interest rates appeared virtuously simultaneously. These models, now commonly called the 'LIBOR models' are based on either lognormal diffusions of forward rates as in Brace,
Carol Alexandra
core
Animal‐Mediated Dispersal and Clonal Growth Drive Prunus cerasus Invasion in Andean Temperate Forest
Integrative Zoology, EarlyView.Prunus cerasus reproduces by clonality and by seed dispersal and germination. P. cerasus is invading Patagonian protected areas. The relative relevance of germination and clonal reproduction changes along the time of P. cerasus arrival at a site. Seed dispersal by foxes is primarily responsible for the spread of P. cerasus to new areas.
Matias O. Berrondo, Susana P. Bravo
wiley +1 more source
Measuring the dispersion of rainfall using Bayesian confidence intervals for coefficient of variation of delta-lognormal distribution: a study from Thailand. [PDF]
PeerJ, 2019 Yosboonruang N +2 more
europepmc +1 more source
Dorsal Crypsis and Chemical Defense Jointly Shape Brain Size in Toads
Integrative Zoology, EarlyView.We found that total brain size and dorsal crypsis under both ultraviolet‐sensitive (UVS) and violet‐sensitive (VS) tetrachromatic bird visual models were negatively associated across eight species of toads. Our findings suggest that when species reduce predation risk by evolving increased dorsal crypsis, they may exhibit decreased brain size due to ...
Hong Wu +6 more
wiley +1 more source
Mitigating policy uncertainty: What financial markets reveal about firm‐level lobbying
American Journal of Political Science, EarlyView.Abstract Elections can lead to substantial policy changes and, thus, are a significant source of risk. Firms can respond to such policy uncertainty by lobbying, but it is hard to quantify whether they do so and, if so, how much lobbying benefits them. We construct a new dataset and leverage investors’ expectations of variability in stock returns in the
Kristy Buzard +2 more
wiley +1 more source
Revista Colombiana de Estadística, 2011 There are several versions of the lognormal distribution in the statistical literature, one is based in the exponential transformation of generalized normal distribution (GN).
Hernández Freddy, Usuga Olga Cecilia
doaj
LOGNFIT: Stata module to fit lognormal distribution by maximum likelihood
lognfit fits by ML the 2 parameter lognormal distribution to sample observations on a random variable. lognpred calculates statistics summarizing a lognormal distribution which has been fitted using lognfit.
Stephen P. Jenkins
core
Acta Ophthalmologica, EarlyView.Abstract Purpose Diabetic retinopathy (DR) screening is essential to prevent vision loss, yet rising diabetes prevalence threatens to outpace ophthalmology capacity. Artificial intelligence (AI) systems can triage retinal images to reduce clinician workload, but economic evidence from high‐income, tax‐funded health systems remains limited.
Lars Grønlykke +7 more
wiley +1 more source
A lognormal distribution of the lengths of terminal twigs on self-similar branches of elm trees. [PDF]
Proc Biol Sci, 2017 Koyama K, Yamamoto K, Ushio M.
europepmc +1 more source
QLOGNORM: Stata module for diagnostic plots for lognormal distribution
qlognorm plots the quantiles of varname against the quantiles of the corresponding lognormal distribution. plognorm graphs a standardized lognormal probability plot for varname.
Nicholas J. Cox
core