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@cosmos4u@scicomm.xyz
2026-05-27 21:19:29

At least five #sunspot groups are visible in this #sunset snapshot from #Bochum, Germany, today (note the newly visible big one at the limb at 11 o'clock) - see bsky.app/profile/cosmos4u.bsky for several other timesteps!

@arXiv_physicsmedph_bot@mastoxiv.page
2026-06-23 07:52:56

Patient-specific immobilisation for radiotherapy treatment of extensive lower-limb carcinoma
Tanya Kairn (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia, Queensland University of Technology, Brisbane Qld, Australia), Tania Poroa (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia), Jenna Luscombe (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia), Shaun Chan (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia), Michelle Grogan (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia), Scott B. Crowe (Royal Brisbane and Women's Hospital, Brisbane Qld, Australia, University of Queensland, Brisbane Qld, Australia, Queensland University of Technology, Brisbane Qld, Australia, Herston Biofabrication Institute, Metro North Hospital and Health Service, Brisbane Qld, Australia)
arxiv.org/abs/2606.21331 arxiv.org/pdf/2606.21331 arxiv.org/html/2606.21331
arXiv:2606.21331v1 Announce Type: new
Abstract: When non-melanoma skin cancers extend over large areas of skin, effective radiotherapy treatments can be delivered using volumetric modulated arc therapy (VMAT) beams with narrow segments that rotate around the affected surfaces. For lower-limb carcinoma treatments, careful immobilisation is needed to achieve the degree of reproducible and stable positioning required to ensure the narrow field segments treat the targeted tissue and avoid underlying anatomy. To meet this need, a 3D printed patient-specific foot support was created in the form of a solid box containing a deep ``footprint'', shaped to match the outline of the patient's relaxed foot when lying supine, supported by a vacuum bag. For our first patient treated with a 3D printed foot support, image guidance data and clinical notes were evaluated against corresponding information from all recent lower-leg VMAT treatments. The patient feedback was recorded as ``good'', with no complaints of discomfort or poor fit, and the proportion of treatment fractions requiring shifts greater than 5 mm after setup imaging (20\%) compared favourably to the proportions for patients without a patient-specific foot support (23\%-84\%). The patient-specific foot support was particularly useful for minimising longitudinal shifts and leg rotations. Evidently, 3D-printed patient-specific immobilisation devices have the potential to enhance positioning stability, and therefore potentially improve accuracy and effectiveness of VMAT treatments, for patients with extensive lower-limb carcinomas.
toXiv_bot_toot

@stargazer@woof.tech
2026-06-29 10:58:39

Про мертвих — або добре, або нічого, крім правди.
Кажуть, вчора був день Конституції чи щось таке.
Відчуття того, що гвинтівка — це свято, всьому прийшов піхвець, прийшло з фразою "Конституція на павзі". Заборону тортур або торгівлі людьми не ставлять на павзу, якщо, звісно, ви не будуєте кримінальну диктатуру на манер російської, де за читання конституції на вулиці в день Конституції тебе кидають в бобік.
У нас з недавних пір, до речі, теж.
Типові пости від п…

A grayscale pencil drawing depicts an MLP-styled pony reclining on a small chaise lounge against a plain white background. It is the ponyfied Adam Jensen from Deus Ex, with dark, spiky hair and intricate dark armor prosthetics with light-colored patches, including one piece that reads "SARIF". It is positioned with one limb extended forward and another draped over the side of the furniture. To the right of the lounge sits a clear bottle of whiskey with a stopper and a small, shallow dish.
@chris@mstdn.chrisalemany.ca
2026-06-15 08:15:52

finally! the pond is *just* overtop the intake bay inlet and flow has reversed to its proper skimming mode. have pump 1 on low and slow. There is just enough water coming in now for the level ti only drop very slowly.
am I sitting on the edge of the pond at dark at midnight watching the water rise ever so slowly so that I can go ?
yes 😂
edit: it's 1AM. Just turned off the water. Both pumps are at 90% power and the water level appears stable. I'm going to go out on a limb and call it a night and hope there is water in the right places in the morning.
who am I kidding. of course there will be. It's even awesome at night.
This was a good day!! 😁 👍
#poolpond #backyardProject #diy #plumbing