Results 251 to 260 of about 122,119 (357)

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

open access: yesJournal of Synchrotron Radiation, Volume 33, Issue 2, Page 395-408, March 2026.
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

Are crop yields limited by pollinators? Proper assessments using pollinator gradients require measurements of flower density and yield potential

open access: yesFunctional Ecology, Volume 40, Issue 3, Page 563-569, March 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract It is widely documented that many crops depend on animal—and primarily insect—pollination, but the degree to which pollinators limit yield in comparison with other factors is poorly understood.
Stan Chabert   +3 more
wiley   +1 more source

Theoretical aspects and simulation with the application of a new two parameter distribution. [PDF]

open access: yesSci Rep
Ghouar A   +8 more
europepmc   +1 more source

Possible welfare benefits of basic income support: Evidence from a benefit incidence analysis in South Africa

open access: yesAnnals of Public and Cooperative Economics, Volume 97, Issue 1, Page 77-108, March 2026.
Abstract The study investigates the potential welfare effect of basic income support (BIS) in reducing poverty and inequality in South Africa. Using the 2017 labour force survey and a benefit incidence analysis, we consider three BIS scenarios: (i) universal income support for those aged between 18 and 59; (ii) only those who are unemployed receive the
Carolyn Chisadza   +5 more
wiley   +1 more source

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