Results 211 to 220 of about 332,668 (285)

Signal‐to‐noise and spatial resolution in in‐line imaging. 3. Optimization using a simple model

open access: yesJournal of Synchrotron Radiation, EarlyView.
Geometrical magnification and X‐ray energy are optimized with respect to spatial resolution, contrast, noise, radiation dose and other image quality characteristics. The optimization is performed using a simple theoretical model of a homogeneous edge feature embedded in a bulk uniform sample, and the resulting generic analytical expressions for image ...
Timur E. Gureyev   +2 more
wiley   +1 more source

Entanglement Cost for Infinite-Dimensional Physical Systems. [PDF]

open access: yesCommun Math Phys
Yamasaki H, Kuroiwa K, Hayden P, Lami L.
europepmc   +1 more source

Generation cycles in experimental populations of a multivoltine insect

open access: yesJournal of Animal Ecology, EarlyView.
Although theory suggests various mechanisms by which environmental and ecological factors may drive generational fluctuations, our field‐cage experiment is the first to demonstrate how internal dynamics and external disturbances jointly produce synchronised, large‐scale outbreak cycles.
Takehiko Yamanaka   +3 more
wiley   +1 more source

Hirota, Fay and geometry. [PDF]

open access: yesLett Math Phys
Eynard B, Oukassi S.
europepmc   +1 more source

The Consequences of Soil Organic Carbon for Crop Yield, Farm Productivity and Profit

open access: yesAustralian Journal of Agricultural and Resource Economics, EarlyView.
ABSTRACT Crop choices affect soil organic carbon (SOC) stocks, allowing farmers to manipulate the amount of carbon sequestered in the soil over time. This paper examines the private and public benefits of crop rotations that sequester additional carbon across the province of Saskatchewan, Canada using a novel field‐level dataset from the Saskatchewan ...
Devin Allen Serfas
wiley   +1 more source

Heterogeneous Spillover Effects: How FDI in Resources Extraction, Manufacturing, and Services Affect Sectoral Carbon Emissions in the MENA Region

open access: yesNatural Resources Forum, EarlyView.
ABSTRACT The MENA region faces a critical challenge: balancing economic growth spurred by foreign direct investment (FDI) with environmental sustainability. While FDI can bring technological advancements and capital, concerns exist about its potential to exacerbate environmental degradation, particularly carbon emissions.
Brahim Bergougui, Syed Mansoob Murshed
wiley   +1 more source

Asymmetric Platform Oligopoly

open access: yesThe 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

Explicit minimisers for anisotropic Riesz energies. [PDF]

open access: yesCalc Var Partial Differ Equ
Frank RL   +5 more
europepmc   +1 more source

Alcohol approach–avoidance task behavior and brain potentials differentially predict ecologically assessed alcohol craving and consumption in early emerging adulthood

open access: yesAddiction, EarlyView.
Abstract Aims The current study measured the extent to which different neurobehavioral indices of incentive‐motivational salience attribution to alcohol cues predict alcohol craving and consumption in the natural environment. Design, setting, and participants Laboratory study at a university in Missouri, USA, followed by a smartphone‐based 21‐day ...
Roberto U. Cofresí   +4 more
wiley   +1 more source

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