Results 161 to 170 of about 168,414 (382)

Hyperbolic predators vs parabolic preys [PDF]

open access: yesarXiv, 2014
We present a nonlinear predator-prey system consisting of a nonlocal conservation law for predators coupled with a parabolic equation for preys. The drift term in the predators' equation is a nonlocal function of the prey density, so that the movement of predators can be directed towards region with high prey density.
arxiv  

A Needle in a Haystack: Landscape Survey and Archaeological Detection Experiments in Apalachee Bay

open access: yesArchaeological Prospection, EarlyView.
ABSTRACT This paper presents the results of a pilot landscape‐scale seismic survey undertaken in Apalachee Bay, Florida, across a submerged landscape that contains dozens of Pre‐Contact sites. In addition to the goals of improving the geophysical and remote sensing ground model for this submerged landscape, the survey also sought to undertake the first
Simon Fitch, Jessica Cook Hale
wiley   +1 more source

Effects of secukinumab on enthesiophyte and erosion progression in psoriatic arthritis –a one‐year double‐blind, randomized, placebo‐controlled trial utilizing high‐resolution peripheral quantitative computed tomography

open access: yesArthritis &Rheumatology, Accepted Article.
Objectives This study aimed to ascertain the effect of secukinumab on erosion and enthesiophyte progression in psoriatic arthritis (PsA) by high‐resolution peripheral quantitative computed tomography (HR‐pQCT). Methods This was a phase 4, double‐blind, randomized, placebo‐controlled trial.
Yingzhao Jin   +11 more
wiley   +1 more source

Deglaciation history and subsequent lake dynamics in the Siljan region, south‐central Sweden, based on new LiDAR evidence and sediment records

open access: yesEarth Surface Processes and Landforms, Volume 47, Issue 15, Page 3515-3545, December 2022., 2022
Glacial geomorphology and postglacial landforms, derived from LiDAR‐based digital terrain models, together with radiocarbon‐dated sediment sequences, form the basis for landscape reconstruction spanning c. 2000 years (10,500–8500 cal. bp). After formation of streamlined terrain and ribbed moraine tracts followed intense glaciofluvial activity at ...
Per Möller   +7 more
wiley   +1 more source

Experiments Reveal That Search Image Might Be Responsible for Seasonal Variation in Nest-Predation Rates

open access: yesDiversity
Investigations of seasonal variations in nest predation rates yield highly variable results. Some investigations argue that search image is responsible for some of the nest-predation patterns, but as far as we know, this study is the first in which ...
Magne Husby, Turid Verdal
doaj   +1 more source

Comparing Risks for Binomial Reliability Assurance Test Planning

open access: yesApplied Stochastic Models in Business and Industry, EarlyView.
ABSTRACT Balancing consumer's and producer's risk is an important consideration when planning tests. Instead of focusing on finding a single best test plan, we introduce a general framework to systematically identify a set of binomial test plans by leveraging the inverse relationship between the two risks.
Hyoshin Kim, Alyson G. Wilson
wiley   +1 more source

A Guideline Value for Dioxin‐Like Compounds in Marine Sediments

open access: yesEnvironmental Toxicology and Chemistry, Volume 42, Issue 1, Page 257-271, January 2023., 2023
Abstract Sediments to be dredged as part of the installation of a harbor crossing in Sydney, Australia, contained measurable concentrations of dioxin‐like compounds. To assess the suitability of these sediments for ocean disposal, a defensible sediment quality guideline value (SQGV) for dioxin‐like compounds, expressed as pg toxic equivalent (TEQ)fish ...
Therese Manning, Graeme E. Batley
wiley   +1 more source

Limited sex differences in plastic responses suggest evolutionary conservatism of thermal reaction norms: A meta‐analysis in insects

open access: yesEvolution Letters, Volume 6, Issue 6, Page 394-411, December 2022., 2022
Abstract Temperature has a profound effect on the growth and development of ectothermic animals. However, the extent to which ecologically driven selection pressures can adjust thermal plastic responses in growth schedules is not well understood. Comparing temperature‐induced plastic responses between sexes provides a promising but underexploited ...
Tiit Teder   +3 more
wiley   +1 more source

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