Professor Chuixiang (Tree) Yi at City University of New York's Avatar

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

12,450 Followers  |  10,109 Following  |  48 Posts  |  Joined: 16.11.2024  |  2.2078

Latest posts by cyi12.bsky.social on Bluesky

The 2025 Physics Nobel Prize: Macroscopic Quantum Tunneling
YouTube video by Sabine Hossenfelder The 2025 Physics Nobel Prize: Macroscopic Quantum Tunneling

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...

07.10.2025 15:09 β€” πŸ‘ 25    πŸ” 6    πŸ’¬ 4    πŸ“Œ 0
Post image

#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

07.10.2025 14:01 β€” πŸ‘ 2    πŸ” 3    πŸ’¬ 1    πŸ“Œ 0
Preview
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 ...

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. βš›οΈ πŸ§ͺ

07.10.2025 22:34 β€” πŸ‘ 53    πŸ” 20    πŸ’¬ 0    πŸ“Œ 1
Preview
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.

424.09 parts per million (ppm) CO2 in air 06-Oct-2025
keelingcurve.ucsd.edu

07.10.2025 16:29 β€” πŸ‘ 15    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0
Preview
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.

πŸ… 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

07.10.2025 18:05 β€” πŸ‘ 39    πŸ” 11    πŸ’¬ 0    πŸ“Œ 1
Post image

The Royal Swedish Academy of Sciences has decided to award the 2025 #NobelPrize in Chemistry to Susumu Kitagawa, Richard Robson and Omar M. Yaghi β€œfor the development of metal–organic frameworks.”

08.10.2025 09:55 β€” πŸ‘ 46    πŸ” 19    πŸ’¬ 0    πŸ“Œ 1

We are now part of the Global Ecology starter pack 3.

bsky.app/starter-pack...

15.07.2025 12:14 β€” πŸ‘ 5    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Preview
β€œModel-freeβ€œ analysis of a complex system. Part II Or: when you don't even see what your model is

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. πŸ§ͺ

#ComplexityThoughts #ComplexSystems

open.substack.com/pub/manlius/...

25.06.2025 12:25 β€” πŸ‘ 35    πŸ” 12    πŸ’¬ 1    πŸ“Œ 1
Preview
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.

πŸš€ 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 πŸ’š for you to share! 🌈

πŸ‘‰ globalecologybs.github.io/feeddigest.g...

πŸŒπŸŒπŸ¦€πŸ¦‘πŸͺ΄πŸπŸ§ͺ

19.05.2025 11:58 β€” πŸ‘ 21    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0

Happy Earth Day!

22.04.2025 15:30 β€” πŸ‘ 11    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0
Post image

New insights into how hierarchical brain organization influences cognitive functions, could inform strategies for targeted neuromodulation therapies.

#ComplexNetworks #Neuroscience

www.nature.com/articles/s41...

08.04.2025 19:05 β€” πŸ‘ 23    πŸ” 9    πŸ’¬ 0    πŸ“Œ 0
a glacier

a glacier

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 β€” and help us see the warning signs before it’s too late www.gc.cuny.edu/news/rethink...

03.04.2025 12:33 β€” πŸ‘ 12    πŸ” 3    πŸ’¬ 0    πŸ“Œ 0
Preview
Doctoral student in ecosystem COS exchange

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. πŸ§ͺ More details here: πŸ§ͺ
jobs.ethz.ch/job/view/JOP...

01.04.2025 08:16 β€” πŸ‘ 15    πŸ” 8    πŸ’¬ 0    πŸ“Œ 0
Post image

β€œWhere 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

1/

01.04.2025 12:57 β€” πŸ‘ 10    πŸ” 5    πŸ’¬ 3    πŸ“Œ 0
Post image

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....

01.04.2025 14:58 β€” πŸ‘ 12    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1
Post image

How Michaelis–Menten kinetics can represent ecosystem-scale respiration: scale and applicability
We explore when MM works β€” and when it doesn’t β€” in capturing ecosystem respiration across scales. iopscience.iop.org/article/10.1...
#ClimateScience #Ecophysiology #SystemsThinking

28.03.2025 12:03 β€” πŸ‘ 9    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Post image

Promote urban biodiversity to benefit people & nature!
πŸŒπŸ˜€πŸ› @natrevbiodiv.bsky.social
doi.org/10.1038/s443...

26.03.2025 17:03 β€” πŸ‘ 35    πŸ” 9    πŸ’¬ 1    πŸ“Œ 2
Preview
28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay inΒ 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.

28 PhD Funded Positions; Doctoral allocation competitions 2025 at AgroParisTech, Campus Agro Paris-Saclay inΒ 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…

25.03.2025 20:30 β€” πŸ‘ 2    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
Preview
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/articles/s44... β€œβ€¦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…”

20.03.2025 02:29 β€” πŸ‘ 26    πŸ” 9    πŸ’¬ 1    πŸ“Œ 1
Video thumbnail

A tree burning inside after a lightning strike.

Credit: Glenn Ratcliff

21.03.2025 22:46 β€” πŸ‘ 639    πŸ” 87    πŸ’¬ 38    πŸ“Œ 25

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?

20.03.2025 13:44 β€” πŸ‘ 18    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0
Post image

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

21.03.2025 15:25 β€” πŸ‘ 28    πŸ” 4    πŸ’¬ 2    πŸ“Œ 0
Post image

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

19.03.2025 11:15 β€” πŸ‘ 18    πŸ” 4    πŸ’¬ 1    πŸ“Œ 1
Preview
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

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...

14.03.2025 10:30 β€” πŸ‘ 12    πŸ” 8    πŸ’¬ 2    πŸ“Œ 1
Post image

Continental divides separate one drainage basin from another. Here is a gorgeous view of the continental divides in North America. Source: buff.ly/3vKHwq7

13.02.2025 21:27 β€” πŸ‘ 79    πŸ” 14    πŸ’¬ 2    πŸ“Œ 1
Preview
Coarse-graining network flow through statistical physics and machine learning - Nature Communications Information dynamics are key in complex systems. The authors apply graph neural networks to group components for coarse-graining networks, reducing computational complexity. Their approach preserves i...

🚨 Excited for the latest paper from the lab, led by Zhang & Arsham.

Can we coarse-grain a #ComplexNetwork while preserving macroscopic network flows?

Surprisingly, the answer is positive, and we have shown it by means of StatPhys + Machine Learning.

🧡 1/

www.nature.com/articles/s41...

13.02.2025 16:30 β€” πŸ‘ 57    πŸ” 13    πŸ’¬ 4    πŸ“Œ 1
Post image

How do we test the (Gaia) theory of planetary self-regulation (Lovelock-Margulis)? We just started our experimental implementation on bioreactors using #synbio to bring planetary scale to the Lab.Exciting day! @vmaull.bsky.social @ftmaestre.bsky.social @vdlorenzo.bsky.social @jordiplam.bsky.social

05.02.2025 22:12 β€” πŸ‘ 48    πŸ” 15    πŸ’¬ 2    πŸ“Œ 0
Preview
The threat of avian influenza H5N1 looms over global biodiversity - Nature Reviews Biodiversity The highly pathogenic avian influenza H5N1 is an emerging and unexpected threat to many wild animal species, which has implications for ecological processes, ecosystem services and conservation of threatened species. International collaboration and information-sharing is essential for surveillance, early diagnosis and the provision of financial and technical instruments to enable worldwide actions.

The highly pathogenic avian influenza H5N1 is an emerging and unexpected threat to many wild animal species. A Comment article in Nature Reviews Biodiversity argues that international collaboration and information-sharing is essential to enable worldwide actions. πŸ§ͺ

14.02.2025 17:34 β€” πŸ‘ 61    πŸ” 29    πŸ’¬ 2    πŸ“Œ 2
Preview
National Geographic Cartographic Intern, Summer 2025 at DISNEY Learn more about and apply for the National Geographic Cartographic Intern, Summer 2025 job at DISNEY here.

National Geographic is hiring a Cartography intern this summer! This is a fantastic opportunity to get real-world experience creating maps for print and digital with our team here at NatGeo! Please share with your geography and cartography students!

jobs.disneycareers.com/job/washingt...

13.02.2025 15:43 β€” πŸ‘ 9    πŸ” 3    πŸ’¬ 1    πŸ“Œ 1
Preview
Lower-cost eddy covariance for CO2 and H2O fluxes over grassland and agroforestry Abstract. Eddy covariance (EC) measurements can provide direct and non-invasive ecosystem measurements of the exchange of energy, water (H2O) and carbon dioxide (CO2). However, conventional eddy covar...

New Paper Alert.
Justus van Ramshorst et al. compared lower-cost eddy covariance (LC-EC) with conventional EC (CON-EC). "Our results showed that LC-EC has the potential to measure CO2 and H2O fluxes at approximately 25% of the cost of a CON-EC system".
Find out more at: doi.org/10.5194/amt-...

12.02.2025 09:34 β€” πŸ‘ 5    πŸ” 1    πŸ’¬ 1    πŸ“Œ 0

@cyi12 is following 20 prominent accounts