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barrettdavis.bsky.social
Barrett Davis
@barrettdavis.bsky.social
360 followers 160 following 210 posts
Biosensors and Engineering Systems Biology • PhD Candidate • Proponent for cleaner air • Here for science and photography
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Barrett Davis @barrettdavis.bsky.social · Sep 27
No longer content just listening to them rattle around in the glovebox, I finally got a few rolls of film from back in December developed and scanned.

#Colorado #Roadtrip #Nature #Landscape #Scape #Mountains #BelieveInFilm
A landscape photo of snow covered mountains looking over a lake in the middle distance. Yellow brown scrub covers the foreground. An overcast sky adds to the contrast of the mountains. A slightly different angle of snow covered mountains looking over a lake in the middle distance. Yellow brown scrub covers the foreground. An overcast sky adds to the contrast of the mountains. A bridge cuts across cold, inky water surrounded by white snow cover and patches of dry yellow and black brush. The bridge from afar, with more mountainous bluffs visible in the distance. Light dappling through the cloud cover illuminates one bluff in gold agains the others.
barrettdavis.bsky.social
#Photogrammetry to capture an existing fountain + 3DP in PLA →

Acrylic paint + elemental copper for patina’d look

OR

Electroplate in copper, tin surface, then blowtorch for bronze shell

#BlueSkyArtShow #OpenHouse #IMadeThis
A picture of three lions head fountain statuettes about 6-8” or 15-18 cm tall with various surface finishes. Either (left to right) translucent white plastic, aged green copper, or bronze. The rightmost statuette has no base and the top has been cut out to hold flowers.
December 20, 2025 at 3:02 PM
Reposted by Barrett Davis
krishnanyamuna.bsky.social
Organelles do NOT have a single uniform pH.
And if you think they must, because “protons diffuse fast,” this paper is for you.
A thread on why that assumption is wrong; and what we found instead. 🧵 1/n
December 17, 2025 at 12:46 AM
Reposted by Barrett Davis
bejalab.bsky.social
Microsecond Time-Resolved Cryo-EM Based on Jet Vitrification www.biorxiv.org/content/10.1... #rhodopsins
November 26, 2025 at 5:26 AM
barrettdavis.bsky.social
"Most cameras at the time were mechanical marvels, and I couldn’t build [one] to save my life. So I thought, ‘I’ll make one with no moving parts and that’ll annoy the hell out of [the mechanical engineers]’."

Generational showboating from Steve Sasson

www.bbc.com/future/artic...
A 'toaster with a lens': The story behind the first handheld digital camera
In 1975, a young engineer in the company that made Kodak film took the first picture on a handheld digital camera. Photography would never be the same again.
www.bbc.com
December 8, 2025 at 7:01 PM
barrettdavis.bsky.social
There's an "anything but sleds" tradition at my university come heavy snowfall like we had this past week.

Some inventive favorites: laundry baskets, kayaks, kiddie pools and woks... (1/3)
A student in black clothes and white sneakers leisurely sleds to a stop while reclined in a silvery stir fry wok A wide shot of roughly 100 students sledding down the hill or waiting their turn to go from the top. Lights are brought onto the hill to prevent crashes into trees along the way down. A student wipes out, rag dolling over some 10-20 yards after running into a discarded laundry basket. A team of three students sleds down in a red kayak. Another porting a plastic folding sign is visible in the background. A makeshift ramp, comprised of a heap of snow and a heavy wooden door is visible in foreground.
December 7, 2025 at 11:31 PM
Reposted by Barrett Davis
lindorfflarsen.bsky.social
TT in Experimental Biophysics

The Danish Institute for Advanced Study and the Dept of Physics, Chemistry and Pharmacy at the University of Southern Denmark is hiring a tenure track Assistant Professor in Biophysics or a related discipline

fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com/hcmUI/Candid...
DIAS Fellow in Experimental Biophysics
The Danish Institute for Advanced Study (DIAS) and the Department of Physics, Chemistry and Pharmacy (FKF) at the University of Southern Denmark (SDU) seek an excellent candidate to fill a tenure trac...
fa-eosd-saasfaprod1.fa.ocs.oraclecloud.com
December 6, 2025 at 7:40 PM
barrettdavis.bsky.social
Curtis et al. find T305A & T306A CaMKIIα mutations drive actinin-mediated spine growth w/o need for kinase activity or cLTP cues, echoing Tullis et al.’s 2023 report “LTP induction by structural rather than enzymatic functions of CaMKII” #Science #NeuroSky

www.jneurosci.org/content/45/4...
Widely Used CaMKII Regulatory Segment Mutations Cause Tight Actinin Binding and Dendritic Spine Enlargement in Unstimulated Neurons
Ca2+/calmodulin-dependent protein kinase II (CaMKII) is essential for long-term potentiation (LTP) of excitatory synapses, a process fundamental to learning. CaMKII responds to Ca2+ influx into postsy...
www.jneurosci.org
December 5, 2025 at 5:22 PM
Reposted by Barrett Davis
manuelthery.bsky.social
#LivingArchitectures
We put cells and cytoskeleton filaments on the architecture of the musée d'Orsay.
www.musee-orsay.fr/fr/agenda/ev...
Scientists of the #CytoMorphoLab adapted their protocols to illustrate the questions that keep them awake at night.
-> Two shows on the 24th and 25th of January.
December 5, 2025 at 4:11 PM
Reposted by Barrett Davis
drjoepajak.bsky.social
Aerosol transmission of SARSCoV2 virus is the dominant route for transmitting COVID-19.
👏'2025 Faraday Horizon Prize for advancing understanding of the physicochemical properties of exhaled aerosols, and their impact on transmissibility of respiratory pathogens.' @rsc.org
www.rsc.org/standards-an...
Aerosol transmission of SARSCoV2 virus is the dominant route for transmitting COVID-19. 👏'2025 Faraday Horizon Prize for advancing understanding of the physicochemical properties of exhaled aerosols, and their impact on transmissibility of respiratory pathogens.' @rsc.org https://www.rsc.org/standards-and-recognition/prizes/winners/the-perform-covid-19-team
June 25, 2025 at 11:20 AM
Reposted by Barrett Davis
missvivienne.bsky.social
The ghost town of Helena, CA.
Widelux F7 // Kodak Aerochrome color infrared film

#believeinfilm #filmisnotdead #film #filmphotography #infrared #35mm #widelux #panorama #landscape #panophotos #ghosttown
Panoramic shot of an abandoned building, a road, and saturated red to pink foliage.
October 16, 2025 at 5:12 PM
Reposted by Barrett Davis
emilymoin.com
INCREDIBLE CURVES
November 19, 2025 at 10:43 PM
barrettdavis.bsky.social
Almost nine years since the math library added tau in python 3.6, I am once again asking the numpy contributors to follow suit
November 20, 2025 at 7:04 AM
barrettdavis.bsky.social
Another panorama from Ontario's Sleeping Giant Provincial Park taken this past summer. The Giant can be seen resting on the horizon, behind the "Sea Lion" rock formation.

#infrared #ir #photography
#nature #landscape
A panoramic color infrared photo of "The Sea Lion" rock formation inside of Ontario's Sleeping Giant Provincial Park. The giant itself bookends the left-side of the image above hazy red trees. Pops of out of focus pink and yellow cover the righthand side. The waters below rock about in impasto'd acrylic hues of powder and steel.
November 19, 2025 at 10:50 PM
barrettdavis.bsky.social
Given the choice between netball and this...

#IR #Photography #RedWed
A color infrared photograph of a basketball backboard with a broken hoop. The net has been cut off and the metal rim hangs like a clock face. Red leaves cast natural shadows. A cloud passes through the hoop.
November 19, 2025 at 10:38 PM
Reposted by Barrett Davis
janinebrunner.bsky.social
MISO: microfluidic protein isolation enables single-particle cryo-EM structure determination from a single cell colony.

Or from a single dish of HEK cell culture in the case of two membrane proteins.

Out in Nature Methods now! lnkd.in/gpyBSceg

Wonderful collaboration with the Efremov lab.
November 14, 2025 at 6:38 PM
barrettdavis.bsky.social
Going through some older photos as the last of summer's leaves finish falling

#infrared #photography #panorama
A panoramic infrared photo of an earth-toned sculpture of a person's face resting with closed eyes. Bushy gardening surrounds the sculpture in hues of pink and red.
November 19, 2025 at 10:28 PM
barrettdavis.bsky.social
At the heart of Purdue University's campus, the Engineering Fountain (and totally not the Atari logo) sublimates into brilliant white light, as red auroral curtains dance overhead

#Photography #BlueSkyArtShow #Bright #Aurora #LongExposure
A long exposure photograph of Purdue University's engineering fountain, shaped like an Atari logo, against red curtains of aurora overhead.
November 15, 2025 at 8:54 PM
barrettdavis.bsky.social
A long walk turned into a much longer walk doubling back home for a tripod, then ambling around my university's campus for a couple of hours.

#Photography #Aurora #LongExposure
A satellite is silhouetted against striated bands of greens reds, yellows and purple aurorae punctuated by bright white stars. A long exposure shot of trees standing against bright pink, green and purple aurora overhead. A dark path snakes along the tree-line. A panoramic crop of students looking up at the aurora, each holding cameraphones to take long exposure photos to share with friends and family. A 1/4 s exposure is used, freezing most students in place, as they stand still to take their own shots. A scooter lights the scene in red and blue light. A non-de noised shot of a pink to blue/green aurora gradient against silhouetted tree branches, their leaves freshly fallen with the past week's cold snap.
November 15, 2025 at 8:43 PM
barrettdavis.bsky.social
A local spin on Iceland's "Sun Voyager" sculpture, featuring a university crew team's boat rack in the foreground, during the first few minutes of this past week's solar activity.

Stacking my phone, keys and wallet beneath the lens worked in a pinch as another #CraftyTripod

#Photography #Aurora
A long exposure photograph taken from the ground of a boat rack in front of red and green aurora over head.
November 15, 2025 at 8:32 PM
barrettdavis.bsky.social
One of the first few serendipitous shots taken out on a walk during this Tuesday's burst of solar activity.

It's rare that alerts of "possible aurorae" have materialized into atmospheric fantasia near me, so ended up using a bollard as another #CraftyTripod for the year.

#Photography #Aurora
A long exposure photograph of a bridge, with multiple lampposts yellow lights streaking across a smooth river flow. Traffic lights are visible streaking left to right as is the faint green glow of aurora overhead.
November 15, 2025 at 8:27 PM
barrettdavis.bsky.social
Coming back to this past week's #aurorae photos with a devil on both shoulders
Two panel meme from 2001's The Lord of the Rings: The Fellowship of the Ring. Top Text: "After all... why not?" Bottom Text: "Why shouldn't I crank the saturation?". The bottom panel is unnaturally saturation boosted.
November 15, 2025 at 7:45 PM
barrettdavis.bsky.social
Sure, ice scraping's a pain and biking now requires gloves, but we're making the most of the season's first snowfall

#photography #winter #snow
A panoramic photo of a large (45 ft / 14 m diameter) metal sun sculpture casting cool blue light onto fresh fallen snow. Research buildings glow yellow-green in the background.
November 12, 2025 at 12:43 AM
Reposted by Barrett Davis
jenlucpiquant.bsky.social
Static Electricity Helps Parasitic Nematodes Leap onto Insects www.scientificamerican.com/article/stat...
These Worms Use Static Electricity like a Sci-Fi Tractor Beam
For microscopic worms, physical laws we seldom notice take on life-or-death importance
www.scientificamerican.com
October 23, 2025 at 1:54 PM
barrettdavis.bsky.social
It’s my working theory that seniority is directly related to the size (or #) of screens an audience member loses themself in:

• trainees typing on phones
• profs reviewing drafts on ipads
• this guy, 26 min over, turning to read his own projected slides
anonopin.bsky.social Anon Opin @anonopin.bsky.social · Oct 22
At an academic conference, it is inevitable that the worst talk will be by a late career Professor who not only think the rules don't apply to them, but will have not even noticed the rules in the first place.
October 23, 2025 at 5:28 AM
Reposted by Barrett Davis
metaomicsnerd.bsky.social
For my #sciencejobs in #academia tenure track hopefuls:

UCSB Bioengineering is looking for a new assistant professor!

Go work near the beach! Get to know the department interim chair, who was my doctoral advisor! Do science with awesome colleagues!

recruit.ap.ucsb.edu/JPF03025
Assistant Professor of Bioengineering 2025-26
University of California Santa Barbara is hiring. Apply now!
recruit.ap.ucsb.edu
October 22, 2025 at 9:35 PM