Magnetotactic bacteria optimally navigate natural pore networks Diverse magnetotactic bacteria are adapted to the local geomagnetic field and grain size to maximize their swimming speed through the pore space.

Magnetotactic bacteria swim along geomagnetic field lines to navigate sediments. Using microfluidics and simulations, this study shows their motility is optimised, revealing how evolution fine-tunes life for challenging environments.

Inside arXiv—the Most Transformative Platform in All of Science Modern science wouldn’t exist without the online research repository known as arXiv. Three decades in, its creator still can’t let it go.

Good read: Inside arXiv - the Most Transformative Platform in All of Science www.wired.com/story/inside...

Academia is cool because if you're doing it right, every paper you published in the last 3 years feels inadequate now that you understand the topic better, but it'll take 3 years to get out the version where you get it more right, and you get to do that until one day you die! Isn't that cool

Calculating a Phase Diagram of a Simple Water Model Using Unsupervised Machine Learning on Simulation Data We use unsupervised machine learning to construct a phase diagram of a simple 2D rose water model. The machine learning method that we use is a combination of dimensionality reduction methods and clustering algorithms. Two different data sets from the same simulations are used as input data for machine learning. These are angular distribution functions and a set of different thermodynamic, dynamic, and structural properties. To evaluate the efficiency of the method, the machine learning results are compared to manually determined phase diagrams. We show that the methods successfully predict the phase diagram of the rose water model. Furthermore, the phase diagrams obtained from the two data sets are in semiquantitative agreement with each other. Four different solid phases, one liquid phase, and one gaseous phase were determined. The method we have presented is straightforward and easy to implement. It requires almost no prior knowledge of the system to obtain a phase diagram. The method can also be used to distinguish between the different parts of the same phase that have different properties or a sufficiently different structure, and in this way find local differences and anomalies.

#compchem Good read: Calculating a Phase Diagram of a Simple Water Model Using Unsupervised Machine Learning on Simulation Data #compchemsky pubs.acs.org/doi/10.1021/...

bioRxiv has partnered with Sciencecast to produce lay summaries of posted preprints. Truly impressive.

Here our paper on integrated 3D tissue mapping and nuclear morphology is well summarized and properly placed in the larger context of the field.

Hear it here: sciencecast.org/casts/ij1zyh...

HISTORY OF PHYSICS

Kenneth G. Wilson. A revolutionary.
(June 8,1936 - June 15, 2013)

Wilson was a markedly independent and original thinker as well as being a rather private and reserved person. An important part of his youthful look was that when somebody said something that

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This sounds great. Also, what a lot of questions visualizations like this raise. Don't you think, @bnerlich.bsky.social?

There could not be a better time for a massive Canadian government investment in science. We need:
- a doubling of the science budget
- a 5 year tax holiday for any major US tech company moving to Canada
- major incentives for Canadian private sector $ to invest in tech

Rètol d'entrada a la Catalunya del Nord, al coll dels Belitres. Bertrand GRONDIN (Wikimedia Commons, CC BY-SA 3.0)

El 10 de desembre de 2007 el Consell General dels Pirineus Orientals aprovà l'oficialitat del català amb el francès.

Al mateix document, el terme «Catalunya Nord» es formalitzà com a equivalent del francès «Pyrénées-Orientales».

És, doncs, un nom neutre i oficial.

ca.wikipedia.org/wiki/Catalun...

Hundreds of students demonstrate in support of diversity at four Defense Department schools overseas Hundreds of Defense Department students in Europe and Asia staged a walkout to rally against the removal of diversity initiatives, symbols and ideas in their schools as part of the largest student-led...

Pro-DEI rally @ DOD schools abroad ... "against Pentagon directives to eliminate books, clubs, programs, signs, curriculum & materials considered to be part of diversity, equity & inclusion ... & “Ending Radical Indoctrination in K-12 Schooling.”

www.stripes.com/theaters/eur...

This is very sad news. Richard was a masterful communicator and a wonderful writer.

#standupforscience at UCSD!

Professor Dr. Karl Martin Menten

In memory of Karl Menten, my dear, brilliant advisor while I was a post-doc at the Harvard-Smithsonian Center for Astrophysics, and an excellent person and friend: @harvard.edu @maxplanck.de:
www.mpifr-bonn.mpg.de/announcement...

Are complex systems predictable? Can we use (un)predictability to measure complexity? Here's a great review by A. Vulpiani and co-workers on how chaos, Lyapunov exponents, information theory and statistical physics get together to answer these questions denali.phys.uniroma1.it/~cencini/Pap...

The Nazis and us The Holocaust continues to haunt our politics. But slurring our opponents as Hitlers is not the way to defeat them.

Here's Marr's piece. He's right that we shouldn't make idle accusations of Nazism. But equally, it's unhelpful to say e.g. "They can't be Nazis because they haven't invaded Poland." The important point is to recognize the same warning signs and strategies.
www.newstatesman.com/world/americ...

Suspens en ciències - El Matí De fa unes setmanes, hi ha una encesa polèmica en el món de l’ensenyament. Em refereixo a la proposta feta pel Govern de reduir les matèries de Ciències a

elmati.cat/suspens-en-c... @natxopago.bsky.social @bigjosh84.bsky.social @chynabently.bsky.social

España deja sin ejecutar 31 millones de fondos europeos destinados a investigación sobre IA El Ministerio de Ciencia cancela la convocatoria para la que se habían coordinado cientos de investigadores y aduce "circunstancias sobrevenidas" y la necesidad de "priorizar programas de ayuda para l...

En toda mi carrera como investigador no he visto una ineptitud del Ministerio/la Agencia Estatal de Investigación de este nivel, y mira que las he visto gordas. Haces coordinarse a grupos, preparar proyectos de 80 páginas, en agosto, y no resuelves la convocatoria?

www.eldiario.es/sociedad/esp...

Ens agradaria que @consellalumnatub.bsky.social
s'uneixi a la nostra causa! Som profes i estem defensant que no retallin les hores de ciències a batxillerat per garantir que l'alumnat arribi ben format a la Universitat. sites.google.com/view/ciencie...
#CiènciesEnPerill
#SenseCienciaNoHiHaFutur

I si la singularitat catalana fos donar més protagonisme a les ciències i apostar per un batxillerat sòlid, amb hores suficients per formar futurs científics i científiques? Necessitem reforçar, no retallar. La ciència és el motor del futur.
#CiènciesEnPerill

Els Mossos demostren que la mà dreta de Puigdemont va ser espiat amb Pegasus Un informe del cos policial revela que Josep Lluís Alay va ser espiat des de l'octubre del 2019, quan Marlaska ja era ministre

Els Mossos demostren que la mà dreta de Puigdemont va ser espiat amb Pegasus

www.ara.cat/politica/mos...

How do we approach the complexity of life as a nonequilibrium system? Using physics and, in particular, landscape and flux theory, many systems, from cells to ecology and cancer, can be adequately represented and modelled. Check this paper in Reviews of Modern Physics
@apsphysics.bsky.social

Reduir la ciència a batxillerat i les lleis fonamentals de l’estupidesa humana A Carlo M. Cipolla, un dels historiadors de l’economia més destacats del segle XX, li agradava entretenir els seus amics amb petits assajos intel·ligents i humorístics. Dos van acabar publicant-se ple...

llegim.ara.cat/opinio/redui...

Initiation of epithelial wound closure by an active instability at the purse string The ability of biological systems to withstand and recover from various disruptions, such as spontaneous genetic mutations and environmental damage, largely relies on intricate feedback mechanisms. We theoretically study the mechanical response of an epithelial tissue facing damage in the form of a circular wound. Our model describes a feedback loop between the generation of active forces in the actomyosin and tissue mechanics, described by the vertex model. While the exact dynamics of wound closure may be influenced by several biophysical mechanisms that interplay in a nontrivial way, our findings suggest that the closure may initiate as an active instability, triggered by a reduced myosin turnover rate at the wound’s perimeter.

New study models epithelial wound closure using an active vertex model, showing that epithelia may initiate the closure process through mechanical instability. Read more to find out how myosin dynamics and tissue mechanics drive this self-repair process. ow.ly/u0f250UBiLt

How did human brains evolve in a world without writing to become "reading brains"? Why is reading such a powerful engine for cognition? Check Stanislas Dehaene's book,
@standehaene.bsky.social. It is a fantastic tour of evolution, culture, and neuroscience.

Diuen que volen millorar els resultats... I la gran idea és retallar hores de ciències al batxillerat quan ja som els que menys hores dediquem a ciències a l'ESO. #CienciesEnPerill #CienciaEsLiniaVermella #SenseCienciaNoHiHaFutur

Docents de ciències creuen que agrupar matèries a batxillerat va en detriment de la qualitat La plataforma Ciències en Perill ha avisat aquest diumenge que la proposta d'agrupar les matèries de física i química i biologia i geologia al batxillerat suposa una "amenaça per a qualitat de...

Docents de ciències creuen que agrupar matèries a batxillerat va en detriment de la qualitat www.elpuntavui.cat/societat/art...

After a needed 2 weeks Winter holidays in #Mexico, tomorrow we start again in the best way possible #WinterMeeting2025
Looking forward to this exciting statistical physics conference!

Thanks for the invitation!

#cienciesenperill: El sistema educatiu català necessita més recursos, no retallades. Així assegurem que els nostres estudiants puguin esdevenir els investigadors del futur. #cienciaesliniavermella #senseciencianohihafutur

aprofita, que aixo s’acaba!😏

Els nens i nenes d'avui podrien ser els investigadors que demà descobreixin els misteris del cervell com fa el grup de Neurociència de Sistemes de Mavi Sánchez-Vives. 🧠🎓 Demanem als Reis que cap retallada impedeixi formar científics. 👑🎄 #CiènciesEnPerill