Tootfinder

Study of a wideband high data rate implantable antenna for cortical visual prosthesis #BCI

Very bummed to hear the news that friend John Collier is dealing with prostate cancer, and about to undergo radiation treatments. Great guy and sitting on an absolute wealth of musical knowledge. Radiation is a rough road for anyone, but John could really use some funding to get through copays and car repair, to support him through the treatment process. Hang in there John, you got this.

Donate to Support John Collier’s Cancer Treatment and Recovery, organized by Ward Ruth
Help our friend complete his 28 sessions without financial stress. … Ward Ruth needs your support for Support John Collier’s Cancer Treatment and Recovery

Internet goes wild over the dogs of the Chernobyl Exclusion Zone turning blue.
But it's absolutely not anything to do with radiation and is probably just them breaking into a portable toilet.
https://www.snopes.com/fact-check/blue-dogs-chernobyl/

Solving the Mystery of the Electron Radiation Belt at #Uranus - Leveraging Knowledge of Earth's Radiation Belts in a Re-Examination of Voyager 2 Observations: https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL119311 -> SwRI may have solved a mystery surrounding Uranus’ radiation belts: https://www.swri.org/newsroom/press-releases/swri-may-have-solved-mystery-surrounding-uranus-radiation-belts

🇺🇦 #NowPlaying on KEXP's #SeekAndDestroy
Lifeless Dark:
🎵 Radiation Sickness
#LifelessDark
https://blackviolencepresents.bandcamp.com/track/lifeless-dark-radiation-sickness
https://open.spotify.com/track/53uFev1pM5sy0romhL86pE

Bombed Chornobyl shelter no longer blocks radiation and needs major repair – IAEA | Ukraine | The Guardian
https://www.theguardian.com/world/2025/dec/06/chornobyl-disaster-shelter-no-longer-blocks-radiation-and-needs-major-repair-iaea?

Atomic and molecular systems for radiation thermometry
Stephen P. Eckel, Eric B. Norrgard, Christopher Holloway, Nikunjkumar Prajapati, Noah Schlossberger, Matthew Simons
https://arxiv.org/abs/2512.08668 https://arxiv.org/pdf/2512.08668 https://arxiv.org/html/2512.08668
arXiv:2512.08668v1 Announce Type: new
Abstract: Atoms and simple molecules are excellent candidates for new standards and sensors because they are both all identical and their properties are determined by the immutable laws of quantum physics. Here, we introduce the concept of building a standard and sensor of radiative temperature using atoms and molecules. Such standards are based on precise measurement of the rate at which blackbody radiation (BBR) either excites or stimulates emission for a given atomic transition. We summarize the recent results of two experiments while detailing the rate equation models required for their interpretation. The cold atom thermometer (CAT) uses a gas of laser cooled $^{85}$Rb Rydberg atoms to probe the BBR spectrum near 130~GHz. This primary, {\it i.e.}, not traceable to a measurement of like kind, temperature measurement currently has a total uncertainty of approximately 1~\%, with clear paths toward improvement. The compact blackbody radiation atomic sensor (CoBRAS) uses a vapour of $^{85}$Rb and monitors fluorescence from states that are either populated by BBR or populated by spontaneous emission to measure the blackbody spectrum near 24.5~THz. The CoBRAS has an excellent relative precision of $u(T)\approx 0.13$~K, with a clear path toward implementing a primary
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UV-irradiated outflows from low-mass #protostars in Ophiuchus with JWST/MIRI: https://www.aanda.org/articles/aa/abs/2025/11/aa54977-25/aa54977-25.html -> On the trail of ultraviolet radiation in Ophiuchus / Puzzling ultraviolet radiation in the birthplaces of stars: https://portal.umk.pl/en/article/on-the-trail-of-ultraviolet-radiation-in-ophiuchus / https://www.mpifr-bonn.mpg.de/pressreleases/2025/7

Thermal one-loop self-energy correction for hydrogen-like systems: relativistic approach
M. Reiter, D. Solovyev, A. Bobylev, D. Glazov, T. Zalialiutdinov
https://arxiv.org/abs/2512.06828 https://arxiv.org/pdf/2512.06828 https://arxiv.org/html/2512.06828
arXiv:2512.06828v1 Announce Type: new
Abstract: Within a fully relativistic framework, the one-loop self-energy correction for a bound electron is derived and extended to incorporate the effects of external thermal radiation. In a series of previous works, it was shown that in quantum electrodynamics at finite temperature (QED), the description of effects caused by blackbody radiation can be reduced to using the thermal part of the photon propagator. As a consequence of the non-relativistic approximation in the calculation of the thermal one-loop self-energy correction, well-known quantum-mechanical (QM) phenomena emerge at successive orders: the Stark effect arises at leading order in $\alpha Z$, the Zeeman effect appears in the next-to-leading non-relativistic correction, accompanied by diamagnetic contributions and their relativistic refinements, among other perturbative corrections. The fully relativistic approach used in this work for calculating the SE contribution allows for accurate calculations of the thermal shift of atomic levels, in which all these effects are automatically taken into account. The hydrogen atom serves as the basis for testing a fully relativistic approach to such calculations. Additionally, an analysis is presented of the behavior of the thermal shift caused by the thermal one-loop correction to the self-energy of a bound electron for hydrogen-like ions with an arbitrary nuclear charge $Z$. The significance of these calculations lies in their relevance to contemporary high-precision experiments, where thermal radiation constitutes one of the major contributions to the overall uncertainty budget.
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Biden Rings Bell After Completing Radiation Therapy - Joe.My.God.
https://www.joemygod.com/2025/10/biden-rings-bell-after-completing-radiation-therapy/