Results 151 to 160 of about 5,853 (227)

Estimating Causal Effects With Observational Data: Guidelines for Agricultural and Applied Economists

Journal of Agricultural Economics, EarlyView.
ABSTRACT Most research questions in agricultural and applied economics are causal in nature: they study how changes in one or more variables (such as policies, prices or weather) affect one or more other variables (e.g., income, crop yields or pollution).
Arne Henningsen, Guy Low, David Wuepper, Tobias Dalhaus, Hugo Storm, Dagim Belay, Stefan Hirsch   +6 more
wiley   +1 more source

Design of Bayesian Clinical Trials With Clustered Data. [PDF]

Stat Med
Hagar L, Golchi S.
europepmc   +1 more source

Is the endophyte‐based plant protection against aphids mediated by changes in the insect microbiome?

Insect Science, EarlyView.
We showed that the fungal endophyte Epichloë strain AR37 increased the plant resistance against aphids via the production of indole diterpene alkaloids. The reduction in aphid performance was not associated with changes in abundance/composition/diversity of the insect's bacterial microbiota, but additional endophyte effects on this microbiota cannot be
Daniel A. Bastías, Luis Carvalho, Ruy Jáuregui, Richard D. Johnson, Wei Zhang, Pedro E. Gundel   +5 more
wiley   +1 more source

Soliton structures and dynamical characteristics of fractional nonlinear waves in the classical Boussinesq framework. [PDF]

Sci Rep
Rimu NN, Islam MA, Dey P.
europepmc   +1 more source

Consistent Choice of Prey Source Habitat Across Diverse Landscapes by a Selective Insectivorous Bat

Integrative Zoology, EarlyView.
After analyzing the diet of the greater horseshoe bats in three distinct colonies, we identified significant spatial and temporal differences, particularly noting a stronger reliance on riparian habitats in Mediterranean areas. The species exhibits great ecological adaptability with strong plasticity in prey source habitats, shifting preferences among ...
Miren Aldasoro, Oihane Diaz de Cerio, Danilo Russo, Nerea Vallejo, Lander Olasagasti, Inazio Garin, Urtzi Goiti, Joxerra Aihartza   +7 more
wiley   +1 more source

Accelerated First-Passage Dynamics in a Non-Markovian Feedback Ornstein-Uhlenbeck Process. [PDF]

J Stat Phys
Coghi F, Duvezin R, Wettlaufer JS.
europepmc   +1 more source

Asymmetric Platform Oligopoly

The RAND Journal of Economics, EarlyView.
ABSTRACT We propose a tractable model of asymmetric platform oligopoly with logit demand in which users from two distinct groups are subject to within‐group and cross‐group network effects and decide which platform to join. We characterize the equilibrium when platforms manage user access by setting participation fees for each user group.
Martin Peitz, Susumu Sato
wiley   +1 more source

Stability Analysis of a Four-Species Periodic Diffusive Predator-Prey System with Delay and Feedback Control. [PDF]

Biology (Basel)
Jia L, Wang C.
europepmc   +1 more source

estar: An R package to measure ecological stability

Methods in Ecology and Evolution, EarlyView.
Abstract Assessing ecological stability is a key task in biodiversity monitoring and conservation. Quantifying stability is not trivial because its different aspects can be measured with various properties. However, to date, no software enables measuring different stability properties on ecological time‐series data.
Ludmilla Figueiredo, Cédric Scherer, Stephanie Kramer‐Schadt, Juliano Sarmento Cabral, Sonia Kéfi, Paul J. Van den Brink, Viktoriia Radchuk   +6 more
wiley   +1 more source