Results 91 to 100 of about 169,157 (233)

Polynomial‐shaped electrodes for adaptive X‐ray optics

open access: yesJournal of Synchrotron Radiation, EarlyView.
A shaped electrode design for lithium niobate adaptive X‐ray mirrors connects actuator degrees of freedom to specific polynomial orders, enabling general shape control and the correction of defocus, coma and fourth‐order aberrations with a limited number of inputs.For adaptive mirrors on X‐ray beamlines and optical systems, we describe a strategy for ...
Kenneth A. Goldberg   +2 more
wiley   +1 more source

Time‐resolved coherent X‐ray scattering analysis of nanorod colloids: dynamics and photon‐statistical effects in angular X‐ray cross‐correlation analysis

open access: yesJournal of Synchrotron Radiation, EarlyView.
A statistical framework combining angular X‐ray cross‐correlation analysis, principal component analysis and photon‐counting simulations is presented for evaluating the detectability of orientational fluctuations in time‐resolved coherent X‐ray scattering experiments.Understanding the dynamic fluctuations of anisotropic particles is essential for ...
Taiki Hoshino   +10 more
wiley   +1 more source

Inverse renewal thinning of Cox and renewal processes

open access: yes
A key result giving inter-connection amongst Bernstein function, completely monotone function and Stieltjes transform is established and used to derive sufficient conditions for the closure of the class of renewal processes under inverse renewal thinning.
Teke, S.P., Deshmukh, S.R.
core  

Appendix dataset S1-thinning

open access: yes
This is a data set on the C-N-P stoichiometry of the terrestrial ecosystem for ...
Hongwei Xu (11729105)
core   +1 more source

Functional variation in butterfly egg pore traits: The potential role of climate

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Immobile eggs of terrestrial animals are exposed to variable environmental conditions. Insect egg pores, critical for gas exchange (aeropyles) and fertilisation (micropyles), are ecologically important yet understudied.
Teun de Jong   +4 more
wiley   +1 more source

Random Dynamics and Finance: Constructing Implied Binomial Trees from a Predetermined Stationary Den [PDF]

open access: yes
We introduce a general binomial model for asset prices based on the concept of random maps. The asymptotic stationary distribution for such model is studied using techniques from dynamical systems.
Silvia Mayoral   +3 more
core  

Out of the fire and into the frying pan: Hostile post‐fire thermal conditions reduce activity windows for reptiles

open access: yesFunctional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Climate change and intensified fire regimes are reshaping ecosystems globally. Reptiles, as ectotherms, rely on microhabitat shelters to buffer against thermal extremes, yet the capacity of these shelters to persist or function following fire remains poorly understood ...
Max Tibby   +3 more
wiley   +1 more source

Apex predators exploit advantageous snow conditions across hunting modes

open access: yesJournal of Animal Ecology, EarlyView.
Advantageous snow conditions—in terms of snow depth and density—are among the most important features of the winter landscape for two apex predators, regardless of hunting strategy. In a warming climate, the knock‐on effects of a diminishing snowpack may reduce the hunting success of multiple large carnivore species.
Benjamin K. Sullender   +7 more
wiley   +1 more source

Thinning, Entropy, and the Law of Thin Numbers

open access: yes, 2010
Rényi's thinning operation on a discrete random variable is a natural discrete analog of the scaling operation for continuous random variables. The properties of thinning are investigated in an information-theoretic context, especially in connection ...
Oliver Johnson   +5 more
core   +1 more source

Beyond thermoregulation: Active behavioural regulation of ultraviolet light exposure by a free‐ranging lizard

open access: yesJournal of Animal Ecology, EarlyView.
This study provides a clear demonstration of active ultraviolet (UV) regulation in free‐ranging lizards and supports that microhabitat choice likely constrains UV regulation more than thermoregulation. Overall, it serves to establish UV as a parallel regulatory axis of physiological homeostasis and expand the range of testable hypotheses in animal ...
Matthew S. Lattanzio
wiley   +1 more source

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