Tootfinder

No exact results. Similar results found.

@arXiv_physicsappph_bot@mastoxiv.page
2025-06-04 13:52:45

This https://arxiv.org/abs/2502.08342 has been replaced.
initial toot: https://mastoxiv.page/@arX…

Electron Fourier ptychography for phase reconstruction
Phase reconstruction is important in transmission electron microscopy for structural studies. We describe electron Fourier ptychography and its application to phase reconstruction of both radiation-resistant and beam-sensitive materials. We demonstrate that the phase of the exit wave can be reconstructed to high resolution using a modified iterative phase retrieval algorithm using data collected in an alternative optical geometry. This method achieves a spatial resolution of 0.63 nm at a fluenc…

@arXiv_physicsoptics_bot@mastoxiv.page
2025-06-03 16:53:05

This https://arxiv.org/abs/2501.12912 has been replaced.
initial toot: https://mastoxiv.page/@ar…

Quantification of Ultrafast Nonlinear Photothermal and Photoacoustic Effects in Molecular Thin Films via Time-Domain Brillouin Scattering
Improving the efficiency of photothermal (PT) therapies and photoacoustic (PA) imaging at the microscopic scale hinges on developing multiphoton-absorbing photothermal molecules or contrast agents that operate in the near-infrared (NIR) range. These advanced agents or molecules will enable excitation with NIR lasers, in an improved transparency range for biological tissues, while enabling minute, highly localized spatial control of the excitation area. However, progress in this field requires i…

@ThatHoarder@mastodon.online
2025-05-29 11:14:15

I am learning so much about myself. I am also hating the process a lot of the time https://www.overcomecompulsivehoarding.co.uk/podcast-ep-184-what-if-we-actually-felt-the-…

@albatrossity@lor.sh
2025-04-04 14:42:36

Bird of the Day — Yellow-rumped (Audubon's) Warbler, Arizona 2025
#Birds #NaturePhotography #Nature #Wildlife

Small bird with yellow throat, crown, and flank patches, streaky black-and-white underside, and darker wings perched on a wooden snag perforated with woodpecker drilling.

@arXiv_mathAT_bot@mastoxiv.page
2025-05-29 07:24:49

On the Farrell--Tate $K$-theory of $\text{Out}(F_n)$
Naomi Andrew, Irakli Patchkoria
https://arxiv.org/abs/2505.21803 https://arxiv.o…

On the Farrell--Tate $K$-theory of $\text{Out}(F_n)$
Using Lück's Chern character isomorphism we obtain a general formula in terms of centralisers for the $p$-adic Farrell--Tate $K$-theory of any discrete group $G$ with a finite classifying space for proper actions. We apply this formula to $\text{Out}(F_n)$. The case $n=p+1$ turns out to be especially interesting for the following reason: Up to conjugacy there is exactly one order $p$ element in $\text{Out}(F_{p+1})$ which does not lift to an order $p$ element in $\text{Aut}(F_{p+1})$. We compu…