Professor Chuixiang (Tree) Yi at City University of New York
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cyi12.bsky.social
Professor Chuixiang (Tree) Yi at City University of New York
@cyi12.bsky.social
Earth resilience, tipping behavior, nonlinear thinking, stability analysis, climate change, photosynthesis, soil respiration, tree mortality, Fulbright Scholar
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Our perspective paper on resilience and tipping points is now out! We outline key principles to guide future research on these critical topics, from dynamical systems to real-world applications.
iopscience.iop.org/article/10.1...
#Resilience #TippingPoints #Ecology
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
The 2025 Physics Nobel Prize was awarded for macroscopic quantum tunneling. What is this and what is it good for? I have a brief summary.

www.youtube.com/watch?v=Rgjz...
The 2025 Physics Nobel Prize: Macroscopic Quantum Tunneling
YouTube video by Sabine Hossenfelder
www.youtube.com
October 7, 2025 at 3:09 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
#OnThisDate Niels Bohr was born! This Danish theoretical physicist received the Nobel Prize in 1922 for his foundational contributions to understanding #quantumtheory. Celebrate by exploring one of his lesser-known papers, which had a massive impact on #quantummechanics: https://ow.ly/xCbW50X5S5z
October 7, 2025 at 2:01 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
The Nobel Prize in Physics 2025 was awarded to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical tunnelling and energy quantisation in an electric circuit." This Collection celebrates the contributions by the awardees. ⚛️ 🧪
Nobel Prize in Physics 2025
The Nobel Prize in Physics 2025 was awarded to John Clarke, Michel H. Devoret and John M. Martinis "for the discovery of macroscopic quantum mechanical ...
go.nature.com
October 7, 2025 at 10:34 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
424.09 parts per million (ppm) CO2 in air 06-Oct-2025
keelingcurve.ucsd.edu
The Keeling Curve
The Keeling Curve is a daily record of global atmospheric carbon dioxide concentration maintained by Scripps Institution of Oceanography at UC San Diego.
keelingcurve.ucsd.edu
October 7, 2025 at 4:29 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
🏅 Former Berkeley Lab senior scientist John Clarke has won the 2025 Nobel Prize in Physics. His research on quantum tunneling in electric circuits paved the way for today’s quantum computers and sensors. 🧠 This brings LBNL’s Nobel count to 17!

@nobelprize.bsky.social
@uofcalifornia.bsky.social
Former Berkeley Lab Scientist John Clarke Wins 2025 Nobel Prize in Physics
The Nobel Prize committee honored former Berkeley Lab scientist John Clarke for research in quantum tunneling in electric circuits.
newscenter.lbl.gov
October 7, 2025 at 6:05 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
The Royal Swedish Academy of Sciences has decided to award the 2025 #NobelPrize in Chemistry to Susumu Kitagawa, Richard Robson and Omar M. Yaghi “for the development of metal–organic frameworks.”
October 8, 2025 at 9:55 AM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
We are now part of the Global Ecology starter pack 3.

bsky.app/starter-pack...
July 15, 2025 at 12:14 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Model-free is never free, at best is hidden.

Many methods are powerful, and most of them work very well. Within the basin of their assumptions. 🧪

#ComplexityThoughts #ComplexSystems

open.substack.com/pub/manlius/...
“Model-free“ analysis of a complex system. Part II
Or: when you don't even see what your model is
open.substack.com
June 25, 2025 at 12:25 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
🚀 Global Ecology feed Digest #19, May 12-19, 32 posts !

✨For the lazy (yes we are) & friends who don't like social media (yes they can) but might benefit from Global Ecology feed, here’s a online DIGEST crafted with 💚 for you to share! 🌈

👉 globalecologybs.github.io/feeddigest.g...

🌐🌍🦤🦑🪴🍁🧪
bluesky Global Ecology Feed Digest #19
Curated digest of the bluesky Global Ecology feed on biodiversity, ecosystems & conservation at large scales. Terrestrial, freswater & marine realms.
globalecologybs.github.io
May 19, 2025 at 11:58 AM
Happy Earth Day!
April 22, 2025 at 3:30 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
New insights into how hierarchical brain organization influences cognitive functions, could inform strategies for targeted neuromodulation therapies.

#ComplexNetworks #Neuroscience

www.nature.com/articles/s41...
April 8, 2025 at 7:05 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
From climate shifts to economic collapse, tipping points can change everything.
Prof. Chuixiang Yi and his team call for a clearer way to understand resilience — and help us see the warning signs before it’s too late www.gc.cuny.edu/news/rethink...
April 3, 2025 at 12:33 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Interested to work on a less-studied greenhouse gas, namely COS exchange of a forest with the atmosphere? We have an open 4-yr PhD position in our international group. at ETH Zurich in Switzerland. 🧪 More details here: 🧪
jobs.ethz.ch/job/view/JOP...
Doctoral student in ecosystem COS exchange
jobs.ethz.ch
April 1, 2025 at 8:16 AM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
“Where is everybody?”

Over lunch, Enrico Fermi posed a question that still haunts astrophysics (and, let me say, #ComplexSystems): if life is common in the universe, why haven't we seen evidence of it?

The Drake Equation sets the stage for this paradox.

Pic: NASA

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April 1, 2025 at 12:57 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
New study highlights the active role of humans in the hunter-farming transition. Varying population growth and mortality rates, driven by competition between hunter-gatherers and farmers, shaped agricultural development in these regions. @andrejpaleo.bsky.social www.pnas.org/doi/epub/10....
April 1, 2025 at 2:58 PM
How Michaelis–Menten kinetics can represent ecosystem-scale respiration: scale and applicability
We explore when MM works — and when it doesn’t — in capturing ecosystem respiration across scales. iopscience.iop.org/article/10.1...
#ClimateScience #Ecophysiology #SystemsThinking
March 28, 2025 at 12:03 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Promote urban biodiversity to benefit people & nature!
🌍😀🐛 @natrevbiodiv.bsky.social
doi.org/10.1038/s443...
March 26, 2025 at 5:03 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay in France

28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay in France: The selection of doctoral candidates for ABIES grants will take…
28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay in France
28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay in France: The selection of doctoral candidates for ABIES grants will take place from June 2th to 4th. Grants are for a 36 months doctoral contract. The monthly gross salary is 2200€ for the 1st year. Candidates should directly contact the thesis supervisor of the project of interest to get more information about the projection and the application process.
agristok.net
March 25, 2025 at 8:30 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
www.nature.com/articles/s44... “…we describe the reforestation approaches and forest restoration methods currently used and how they affect biodiversity; summarize the knowledge gaps of biodiversity outcomes of forest restoration; and describe the emerging opportunities for future restoration…”
Moving biodiversity from an afterthought to a key outcome of forest restoration - Nature Reviews Biodiversity
Forest restoration has the potential to result in substantial biodiversity gains alongside climate and human well-being benefits; however, biodiversity has historically been neglected in restoration e...
www.nature.com
March 20, 2025 at 2:29 AM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
A tree burning inside after a lightning strike.

Credit: Glenn Ratcliff
March 21, 2025 at 10:46 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Exactly. What are those Republican congressmen and senators talking about behind closed doors? What are they telling their children? How do they see their future? How can they not wake up in the morning and find themselves transformed into a giant beetle?
Unbelievable...
March 20, 2025 at 1:44 PM
Our perspective paper on resilience and tipping points is now out! We outline key principles to guide future research on these critical topics, from dynamical systems to real-world applications.
iopscience.iop.org/article/10.1...
#Resilience #TippingPoints #Ecology
March 21, 2025 at 3:25 PM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
What are the implications of considering #TippingPoints in #restoration strategies?
Thanks to the organizers of the #RamonMargalefColloquia &
@ricardsole.bsky.social for the opportunity to give this lecture!
Some topics were: #ClimateChange #WarningSignals #DynamicalGhosts #Antrhopocene
March 19, 2025 at 11:16 AM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
I'm launching a new monthly maths column, and what better day to do it than Pi Day? Read on to learn what an ancient Egyptian scribe called "Directions for Knowing All Dark Things", why Newton was ashamed by pi, and how our best estimate was wrong for a century
www.newscientist.com/article/2471...
Why the long history of calculating pi will never be completed
Building the full value of pi has been a project thousands of years in the making, but just how much of this infinite number do we actually need, asks our maths columnist Jacob Aron
www.newscientist.com
March 14, 2025 at 10:30 AM
Reposted by Professor Chuixiang (Tree) Yi at City University of New York
Continental divides separate one drainage basin from another. Here is a gorgeous view of the continental divides in North America. Source: buff.ly/3vKHwq7
February 13, 2025 at 9:27 PM