Results 191 to 200 of about 30,783 (304)

Prospective Lifetables: Life Insurance Pricing and Hedging in a Stochastic Mortality Environment [PDF]

In life insurance, actuaries have traditionally calculated premiums and reserves using a deterministic mortality intensity, which is a function of the age of the insured only.
Carlos Pereira da Silva, Jorge Bravo
core  

Rising temperature non‐additively alters how different dimensions of biodiversity affect ecosystem‐scale processes

Journal of Animal Ecology, EarlyView.
The authors distil how dimensions of biodiversity drive ecosystem processes with increasing temperature. Specifically, species physiology more greatly affected ecosystem primary production than did foraging behaviour, and physiology mediated non‐additive interactions with temperature.
Sean Pierce Richards, Maximilian H. K. Hesselbarth, Jacob Edward Allgeier   +2 more
wiley   +1 more source

Dynamic properties of an SARS-CoV-2 epidemic model via stochastic PINNs. [PDF]

Infect Dis Model
Xie L, Yang J, Li Z.
europepmc   +1 more source

From individuals to networks: The role of variation in plant–pollinator communities' responses to global change

Journal of Animal Ecology, EarlyView.
This paper argues that variation among individuals—not just species differences—can shape the sensitivity, robustness and resilience of plant–pollinator communities under global change. By linking individual traits and interaction structure to network dynamics, it provides a new framework and future research directions for predicting community ...
James DeWitt Crall, Marilia Palumbo Gaiarsa   +1 more
wiley   +1 more source

Survey on mathematical modeling of infectious disease dynamics: insights and applications. [PDF]

BMC Infect Dis
Eshtewy NA, Forootani A, Sisi ZA.
europepmc   +1 more source

Effect of the microbiome on pathogen susceptibility across four Drosophilidae species

Insect Science, EarlyView.
Four Drosophilidae species were used to investigate how variation in the host microbiome influences susceptibility to infection. Microbial composition and abundance differed among species and treatments. The effects of microbiome manipulation on host survival were both species‐ and pathogen‐specific.
Hongbo Sun, Ben Longdon, Ben Raymond
wiley   +1 more source

Chaotic and Stochastic Components in an Influenza Surveillance Series: Nonlinear Dynamics and Predictive Modeling Study. [PDF]

JMIRx Med
Goncalves CPDS, Rouco C.
europepmc   +1 more source

Habitat Features, Coyotes, and Humans Drive Diel Activity Variation Among Sympatric Mammals

Integrative Zoology, EarlyView.
We found that multiple mammal species show considerable variation in diel activity in response to several factors, with biotic variables (habitat features and the presence of coyotes Canis latrans) having the strongest overall effects. Our results have important implications for trophic dynamics. Future studies will need to account for these underlying
Nathan J. Proudman, Maximilian L. Allen
wiley   +1 more source

Mathematical analysis of a stochastic delay model for respiratory syncytial virus dynamics. [PDF]

Sci Rep
Raza A, Lampart M, Shafique U, Alfwzan WF, Fadhal E.   +4 more
europepmc   +1 more source

Mortality Modelling Using Stochastic Mortality Models: A Study on Malaysia’s Ethnic Groups

, 2022
Qian Yun Ng, Lay Guat Chan
openaire   +1 more source