Siavash Ahrar
@siavasha.bsky.social
560 followers 740 following 230 posts
Assistant Prof of BME / BioE. micro and millifluidics for biological investigations; at the Beach! Star Trek fan 🖖 ✨
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siavasha.bsky.social
Sharing my faviorate video from our recent pre-print www.biorxiv.org/content/10.1...

Sand dollar larvae dancing !!
Reposted by Siavash Ahrar
yearprogress.bsky.social
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siavasha.bsky.social
"captain's log supplemental:

This week I have submitted my tenure packet, proposal (NIH resubmission), and a manuscript (for review)

The holographic doctor tells me that I may be experiencing some elevated fatigue and should better take care of my sleep schedule."

But yes to productive week!!
Reposted by Siavash Ahrar
dangaristo.bsky.social
New: After a long wait, the GRFP solicitation is live! Deadlines have been extended to early November, so applicants have a bit over a month to submit. www.nsf.gov/funding/oppo...
NSF Graduate Research Fellowship Program (GRFP)
www.nsf.gov
siavasha.bsky.social
Angry Arne Slot 😬😡
Reposted by Siavash Ahrar
prakashlab.bsky.social
For last 10 years - we have worked with thousands of organizations around the world helping support them in integrating foldscope programs.

To bring in a new cohort of organizations - we are re-launching “fast and curious” 2025 edition - apply and get a Foldscope trainer and Foldscopes for free!
teamfoldscope.bsky.social
🔬 Free microscopes + teacher training!

📅 Applications are now open. To apply, visit www.foldscope.com or scan the QR code (video)

✉️ Any questions? Email us at [email protected]

#stem #education #science #teachers #training #free #microscopy #educators #professionaldevelopment #microscope
Reposted by Siavash Ahrar
drrjwarren.bsky.social
One day, nearly 2000 years ago, a cat dashed across some drying tiles, somewhere near Hadrian's Wall.

It's immortality of a kind, isn't it?
Photo of square orange tiles, set into the ground, across one of which several cats footprints are clearly visible.
siavasha.bsky.social
Credit to team members (Ena, Jaimie, Maro, Helen, and Roquel) thankful to each of them. And also @robthehoosier.bsky.social for all his support.

This is our first step 🩴 in the project 🐙 🔬and have a long (and exciting) way to ahead!
siavasha.bsky.social
2 main take aways
(A) Hydra - vulgaris specifically is really great at surface attachment.

(B) At high volumetric flow rates (high shear) polyps (again vulgaris in particular) aligns with the flow direction.
siavasha.bsky.social
Happy to share our new pre-print using microfluidics to look into flow response of Hydra.
Figure from the manuscript - demonstrating the system to investigate flow response of Hydra
siavasha.bsky.social
Will this is a really cool and creative approach.

Congrats to you and the team.

Critical and unmet biomedical need + also many other applications (food, cosmetic products).
Reposted by Siavash Ahrar
wgrover.bsky.social
Our latest preprint on medRxiv: Identifying counterfeit medications using a $4 optical sensor meant for use in toy robots. 🧪💊🤖

www.medrxiv.org/content/10.1...
Our prototype Disintegration Fingerprinting apparatus. (A) A servo drops a single pill into a water-filled cup atop a magnetic stirrer. The pill begins to disintegrate into particles (B), and an infrared optical sensor on the side of the cup detects the light reflected by individual particles as they pass the sensor (C). As the particles disintegrate and dissolve further, the number of particles detected changes (D). A plot of peak count vs. time (E) serves as a “Disintegration Fingerprint” for this pill.
siavasha.bsky.social
I really think we need (physical) thank you or congrats notes to send all the researchers - specifically for folks early in their research careers (for example grad students).

We have been talking about a way to do this (communications) activity in a course. But haven't fully figured it out yet.
Reposted by Siavash Ahrar
drandrewthaler.bsky.social
Here's a fun bit of science history for you: Back before we could just download PDFs, if you wanted a paper and it wasn't in a journal in your library, you wrote to the author for a copy.

So universities made these nice little post cards for requesting article reprints.
Postcard with template for requesting a reprint of an article from a journal Back of postcard with university address.
siavasha.bsky.social
System of Down also used it in their hidden track Arto (toxicity 2001)
m.youtube.com/watch?v=qNG7...
Which is based on the famous chant
That Serj Tankian is singing here
m.youtube.com/watch?v=Qwrz...
Arto
YouTube video by System Of A Down - Topic
m.youtube.com
siavasha.bsky.social
Wow engineering is 0.
We should fix that.
Reposted by Siavash Ahrar
chang-c-liu.bsky.social
Our new company, K2 Therapeutics, is off to the races to develop new antibody drugs that target multipass membrane proteins. We are hiring so check us out! www.k2-tx.com/home#careers
K2 Therapeutics
www.k2-tx.com
Reposted by Siavash Ahrar
deniswirtz.bsky.social
My team has updated our free database of POSTDOC fellowships.

This database contains 286 entries. For each entry, we provide a link, short description, deadline, amount, and eligibility criteria.

Download this updated and expanded database here: research.jhu.edu/rdt/funding-...
siavasha.bsky.social
www.science.org/doi/10.1126/...

Another great (cat-centric) paper 😸
I love figure 6.
Diagram of a happy cat rolling over a silver vine leaves.  A sad mosquito is repelled.  The diagram suggests a pathway and the key molecule that induces the behavior.
Reposted by Siavash Ahrar
doctorzen.net
Teaching this fall?

Here is a handy webpage that will help you generate a list of the days your course(s) meet:

wcaleb.rice.edu/syllabusmake...
Generic Syllabus Maker
wcaleb.rice.edu
Reposted by Siavash Ahrar
hungtangko.bsky.social
Call for contributions to our symposium on animal collective movement in complex environments at SICB 2026 in Portland, OR! Submit your abstract to our complementary sessions and join us for two days of fun discussing and exchanging research on the biomechanics and energetics of animal movement!
siavasha.bsky.social
One of the most fun papers (brief) I have read this year

www.cell.com/action/showP...

Cats prefer to sleep on their left side.
Also they sleep 12-16 hrs/day.
😸💤
A Bar plot.  
It shows 2/3 of cats studied sleep leftward.  The remaining sleep rightward. 

The plot has photos of two cats sleeping (one leftward, the other rightward) under each chart to demonstrate their results. 

Both cats look comfortable - deep in sleep.
Reposted by Siavash Ahrar
blarson.bsky.social
Fascinating new work on mechanics and tube feet dynamics during starfish locomotion, which reveals a robust, decentralized strategy for locomotion on challenging terrain involving modulation of foot-substrate contact time in response to mechanical load: www.biorxiv.org/content/10.1...
Tube feet dynamics drive adaptation in sea star locomotion
Sea stars use hundreds of tube feet on their oral surface to crawl, climb, and navigate complex environments—all without the coordination of a central brain. While the morphology of tube feet and thei...
www.biorxiv.org
Reposted by Siavash Ahrar
profcgarza.bsky.social
The Biology Department at CSU Long Beach is now advertising for an Assistant Professor of Elasmobranch Biology. Refer to the attached flyer for details. @uwsafs.bsky.social @uwmarinebiology.bsky.social @misselasmo.bsky.social @whysharksmatter.bsky.social @official-bweems.bsky.social
Flyer from CSU Long Beach advertising for the position of Assistant Professor of Elasmobranch Biology. The flyer has a picture of a white shark in the banner. Application deadline is September 03, 2025. Christine Whitcraft can be contacted for details at Christine.whitcraft@csulb.edu Full job description can be found here: https://careers.pageuppeople.com/873/lb/en-us/job/549205/assistant-professor-of-biological-sciences-elasmobranch-biologist