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armholster.bsky.social
Lighthouse
@armholster.bsky.social
190 followers 170 following 660 posts
I am a Cdn/US physician scientist specialized in Internal, Occupational, Aerospace and Preventive Medicine. My posts cover #virtualtravel #medicine #science #technology #innovation #aerospace and #Cdn #US #UK #Intl #news. AI Images are by #Gemini 🖥️ 🌎🔬👨🏼‍⚕️📚🚀🇨🇦🇺🇸
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 20h
Not raining? 🌧️😊
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 20h
Earth has crossed its first climate tipping point, mass coral reef death. The recent 2025 Global Tipping Point report recommends urgent action to avoid more irreversible and self-reinforcing environmental changes, with catastrophic impacts. Report:
global-tipping-points.org/resources-gtp/
#climate
Bleaching, Melting, Slowing: New report tracks growing risks of Earth system tipping points
13.10.2025 - Widespread coral reef die-off marks the world’s first climate tipping point, according to a new report by 160 scientists. The Global Tipping Points Report 2025 highlights mounting risks a...
www.pik-potsdam.de
armholster.bsky.social
Lighthouse @armholster.bsky.social · 20h
Ryōan-ji, Kyoto, Honshu, Japan
Website: ahouseinthehills.com/wp-content/u...
#Travel #Daily #Photo #Landscape #Wallpaper #Japan
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 1d
ASU will have a new School of Medicine and Advanced Medical Engineering opening in the fall of 2026 in collaboration with HonorHealth, training future physicians and strengthening medicine, bioengineering, technology, and innovation in Arizona. medicine.asu.edu
#ASU #MD #medical #bioengineering
Credit ASU https://medicine.asu.edu/
armholster.bsky.social
Lighthouse @armholster.bsky.social · 1d
HBOT is being used in Israel by Efrati to treat PTSD. Enhanced oxygen supply enables rapid and sustained firing of inhibitory interneurons by meeting their high metabolic demand, which explains why it works. Repeated HBOT cycles lead to cellular regeneration, including inhibitory cell populations.
armholster.bsky.social
Lighthouse @armholster.bsky.social · 1d
Granville Island Public Market, Vancouver, British Columbia, Canada
Website: assets.bonappetit.com/photos/5b903...
#Travel #Daily #Photo #Landscape #Wallpaper #Vancouver
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 2d
Does the NRe–CA1 pathway pathway normally function to limit fear expression and promote adaptation after threat resolution, while disruption or inactivation of the NRe–CA1 pathway leads to prolonged fear responses, increased overgeneralization of fear, and impaired extinction of conditioned fear?
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 2d
😎
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 2d
Significant innovation in autonomous diagnostics, drug delivery, and closed-loop health systems in microgravity will be essential for long-duration spaceflight. This paper addresses the unique biomedical challenges in space, for ISS, Artemis, and Mars missions.
www.nature.com/articles/s43...
#space
NASA photo demonstrating spinal ultrasound: https://www.nasa.gov/wp-content/uploads/2023/03/iss036e035750-1.jpg
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 2d
Mon 10/13/2025
Sinai Peninsula, Egypt
Website: colombiaone.com/wp-content/u...
#Travel #Daily #Photo #Landscape #Wallpaper #Egypt
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 3d
Most biotech news is positive. Here’s a disturbing story about AI-designed proteins able to evade current biosecurity screening, raising risks for gene synthesis misuse. Cross-sector collaboration is needed to safeguard against AI-enabled biosecurity threats.
www.science.org/doi/10.1126/...
A biological 0-day? Threat-screening tools may miss AI-designed proteins.
Ordering DNA for AI-designed toxins doesn’t always raise red flags.
arstechnica.com
armholster.bsky.social
Lighthouse @armholster.bsky.social · 3d
Long before we understood its power, nature sheltered the beginnings of life on earth as we know it. Is life on Earth the result of a cosmic accident, or is/are a transcendent force or forces responsible? An age-old question.
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 3d
Congratulations. One of my friends completed the last part of the walk with two of her friends last year and enjoyed it. She is nearly 80. She is also an artist. Here is one of her sketches of a small church she passed on the journey.
armholster.bsky.social
Lighthouse @armholster.bsky.social · 3d
True mental well-being results from prioritizing justice, wisdom, and emotional balance.
Thanks!
armholster.bsky.social
Lighthouse @armholster.bsky.social · 3d
Chinese scientists recently used enzymes to convert a donor kidney from Type A to universal type O and transplanted it into a brain-dead patient without hyperacute rejection. This may revolutionize transplant medicine and reduce waitlist times for many more organ transplant patients in the future.
Scientists Converted a Kidney’s Blood Type, Then Implanted It Into a Brain-Dead Patient for the First Time
This area of research is still in the early stages, but it could someday help reduce wait times for patients needing kidney transplants
www.smithsonianmag.com
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 3d
Revolution Festival at the Falkirik Wheel (boat lift), near Falkirk, Scotland, UK
Website: visitfalkirk.com/wp-content/u...
#Travel #Daily #Photo #Landscape #Wallpaper #Scotland
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 4d
Camino De Santiago Pilgrimage to the Sacred Shrine at Santiago De Compostela, Spain
Website: discovernavarra.com/wp-content/u...
#Travel #Daily #Photo #Landscape #Wallpaper #CaminodeSantiago #Spain
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 5d
Canadian PM Mark Carney’s visit to the White House on 6 Oct may lead to the Keystone XL pipeline’s revival, though major environmental and permitting hurdles remain, which will require major investment and binational support.
www.cbc.ca/news/canada/...
#Carney #KeystoneXL #pipeline
Back from the dead? Keystone XL's possible revival has proponents cautiously hopeful | CBC News
Could the third time be the charm when it comes to the Keystone XL pipeline? More than 15 years after it was initially proposed, the pipeline project could be on the table once again. But energy exper...
www.cbc.ca
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 5d
Palolem Beach, Goa, India
Website: www.bontravelindia.com/wp-content/u...
#Travel #Wallpaper #Photo #Daily #Goa #India
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 6d
There were some great pictures (as well as some fake ones) published of the recent 6-7 October Harvest Moon.
www.livescience.com/space/the-mo...
Harvest supermoon photos: See the moon at its biggest and brightest in pictures from around the world
This year's full 'Harvest moon' was also a supermoon. Check out some of the best images of this lunar event with our worldwide gallery.
www.livescience.com
armholster.bsky.social
Lighthouse @armholster.bsky.social · 6d
Long-duration spaceflight (LDSF) may cause eye and neurological changes, called Spaceflight Associated Neuro-Ocular Syndrome (SANS). A prior SANS diagnosis predicts future risk and severity in repeat ISS astronauts according to this new NASA study.
jamanetwork.com/journals/jam...
A total of 16 National Aeronautics and Space Administration (NASA) astronauts (orange circles) have completed 2 long-duration spaceflights onboard the ISS. During ISS mission 1, astronauts were either diagnosed as SANS cases or non-SANS cases (indicated by dark and light blue circles, respectively). These SANS or non-SANS groups then completed ISS mission 2 and were, again, diagnosed as SANS or non-SANS cases. https://jamanetwork.com/journals/jamaophthalmology/fullarticle/2839508
armholster.bsky.social
Lighthouse @armholster.bsky.social · 6d
The first radar data transmission from the NISAR satellite was released recently. Its dual radar technology with unprecedented detail in tracking global changes to land, ice, and ecosystems will give us a better understanding of the earth.
www.seacoastonline.com/story/lifest...
#NASA #India #space
Captured on Aug. 21, this image from NISAR's L-band radar shows Maine's Mount Desert Island. Green indicates forest; magenta represents hard or regular surfaces, like bare ground and buildings. The magenta area on the island's northeast end is the town of Bar Harbor. NASA/JPL-Caltech https://www.seacoastonline.com/story/lifestyle/nature-wildlife/2025/10/03/nisar-satellites-first-radar-image-is-of-maine-see-photos-from-space/86494594007/
armholster.bsky.social
Lighthouse @armholster.bsky.social · 6d
Trinidad, Sancti Spiritus, Cuba
Website: lion-tours.de/media/7/7209...
#Travel #Daily #Photo #Landscape #Wallpaper #Cuba
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armholster.bsky.social
Lighthouse @armholster.bsky.social · 7d
Do you know anyone who is pregnant? “Ring vaccination” is crucial for newborn protection, especially against pertussis and measles - vaccinating mothers and all close contacts and caregivers is necessary to prevent severe disease or death in newborns and infants.
pmc.ncbi.nlm.nih.gov/articles/PMC...
https://pmc.ncbi.nlm.nih.gov/articles/PMC12153400/ This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License
armholster.bsky.social
Lighthouse @armholster.bsky.social · 7d
“We need to acknowledge that history might be the best teacher we have, in all of its complexity.”
- Ken Burns
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