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Roberto Álvarez

@robertoalvarez.bsky.social
442 followers 1.9K following 43 posts

Físico. Maestro. Tratando de hacer biología. sites.google.com/view/robertolvarez…

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Roberto Álvarez @robertoalvarez.bsky.social · 21/09/2026
The power of theory in the life sciences doi.org/10.7554/eLif...
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Chuliang Song @clsong.com · 10/09/2026
A wonderful review by Stefano on 100 years of Lotka–Volterra models. Don’t miss the incredibly detailed Supplement, truly the “War and Peace” of LV models. I really wish it had existed when I was a grad student! doi.org/10.1146/annu...
doi.org
One Hundred Years of Lotka–Volterra Models
Over the past century, the generalized Lotka–Volterra (GLV) model has grown from a mathematical curiosity to a cornerstone of theoretical ecology. Here we celebrate the enduring legacy of Lotka and Vo...
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Ricard Solé @ricardsole.bsky.social · 04/09/2026
Starting from the idea of "language as a virus", we study the propagation dynamics of LLMs using an epidemic model with cooperation. A great collaboration with @brigan.bsky.social @marktas.bsky.social @sfelena.bsky.social @manlius.bsky.social D Krakauer $ @drmichaellevin.bsky.social
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Roberto Álvarez @robertoalvarez.bsky.social · 26/08/2026
New paper in @royalsocietypublishing.org: a Boolean model of C. elegans clk-1, validated via most-permissive trap spaces, into Hill-type ODEs. AMPK-ROS-HIF-1 sustains oscillatory stress: longer life, not better health. José Carracedo, former MSc student. doi.org/10.1098/rsos.251736
doi.org
Stress responses and dynamic equilibrium: key determinants of ageing in the Caenorhabditis elegans clk-1 mutant
Abstract. Systems biology offers valuable insights into ageing by integrating experimental data with mathematical models and bioinformatics tools. Long-liv
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Frédérique Reverchon @drafred.bsky.social · 05/08/2026
Followed by a wonderful talk by @robertoalvarez.bsky.social on multi-layer networks as a tool for multi-omic dataset integration
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Roberto Álvarez @robertoalvarez.bsky.social · 13/07/2026
¿Qué reunión?
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Roberto Álvarez @robertoalvarez.bsky.social · 12/06/2026
¿Podemos anticipar el colapso de un ecosistema antes de que ocurra? En nuestra nueva revisión en Entropy sintetizamos los métodos de señales de alerta temprana (EWS) y mostramos que su fiabilidad depende del mecanismo de transición (B/N/R/S), no del indicador en abstracto. doi.org/10.3390/e280...
doi.org
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Roberto Álvarez @robertoalvarez.bsky.social · 11/06/2026
🌸🐝 Why do flowers “lie” to pollinators? New paper in Phil. Trans. R. Soc. B. My contribution: the formal analysis. A frequency-dependent model (3 strategies, replicator dynamics + ESS) shows floral honesty is NOT evolutionarily stable — the “variable” cheating strategy prevails. 📄 shorturl.at/fzQNO
doi.org
Frequency-dependent selection and the evolution of continuous cheating strategies in plant–pollinator interactions
Abstract. We provide a conceptual framework and empirical evidence to support the hypothesis that within-individual and independent variation in floral rew
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Ricard Solé @ricardsole.bsky.social · 03/06/2026
Can we engineer ecosystems before they collapse? In our new perspective on "emergent bioengineering" we argue that the key challenge is not simply controlling living systems, but designing interventions that can adapt and sustain functional ecological networks. www.sciencedirect.com/science/arti...
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Roberto Álvarez @robertoalvarez.bsky.social · 26/03/2026
D'Arcy Thompson tenia razón: Comparando 6 especies de cnidarios , descubieron que variaciones en pocos módulos mecánicos de tejido predicen la diversidad de formas larvarias. Alterando estos módulos, una forma de una especie para parecerse a otra. tinyurl.com/3xukwfcp Paper tinyurl.com/hbzsrmwn
embl.org
Sea creatures reveal the physics behind animal body shape diversity | EMBL
New study identifies ‘mechanotypes’ as the physical links between genes and body shapes, explaining how diverse forms arise in animals
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Complexity Digest @cxdig.bsky.social · 10/03/2026
Stochastic–dissipative least-action framework for self-organizing biological systems, Part I: Variational rationale and Lyapunov-type behavior - ScienceDirect
sco.lt
Stochastic–dissipative least-action framework for self-organizing biological systems, Part I: Variational rationale and Lyapunov-type behavior
How and why do complex chemical and biological systems self-organize into ordered states far from thermodynamic equilibrium? Despite advances in thermodynamics, kinetics, and information theory, a unifying principle that links organization and efficiency across scales has remained elusive. In open systems, productive-event trajectories are conditioned on starting at a source and ending at a sink. This work proposes a stochastic–dissipative least-action triad framework in which (i) a path-ensemble weighting biases trajectories by their action cost, (ii) feedback processes sharpen this distribution, and (iii) the ensemble evolves toward a least-average-action attractor, decreasing during self-organization and increasing during decay. A parametric cross-scale metric—Average Action Efficiency (AAE)—is defined, which is inversely proportional to the average action per productive event. Under reinforcing feedback, identities derived from the exponential-family path measure show that the average action decreases and AAE rises monotonically. In future extensions, this formulation could help bridge quantum, classical, and biological regimes while remaining computationally tractable, because its empirical version relies on aggregate energetic and timing data rather than enumerating individual trajectories. AAE reaches a local maximum at a non-equilibrium steady state under fixed operational context, consistent with the present formulation, and connections to thermodynamic and informational measures are made. A companion article (Part II) details empirical estimation strategies and applications (Georgiev, 2025a). Georgi Yordanov Georgiev BioSystems Volume 262, April 2026, 105647 Read the full article at: www.sciencedirect.com See Also: Part II: Empirical estimation, Average Action Efficiency, and applications to ATP synthase
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Roberto Álvarez @robertoalvarez.bsky.social · 07/02/2026
Emergence of the Golden Angle in Flower Heads www.tandfonline.com/doi/full/10....
tandfonline.com
Emergence of the Golden Angle in Flower Heads
Phyllotaxis—the arrangement of plant organs around their supporting axes—is an important attribute of plant architecture. Recent experimental data show that the first phase of typical phyllotactic ...
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Roberto Álvarez @robertoalvarez.bsky.social · 28/01/2026
Catástrofes para pensar lo social: Thom, entre geometría, sentido y cambios bruscos fgbueno.es/bas/pdf/bas1...
fgbueno.es
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Philip Ball @philipcball.bsky.social · 08/12/2025
What a great paper. Wilson Poon & colleagues argue that life isn't exactly trying to be energetically efficient, because it needs the heat to optimize other capabilities. www.arxiv.org/abs/2512.04725
arxiv.org
Why life is hot
The process of evolution by natural selection leads to fitness-maximising phenotypes. On the level of cellular chemical reaction networks, maximising fitness can mean optimising a variety of fitness f...
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Roberto Álvarez @robertoalvarez.bsky.social · 27/11/2025
search.app/TZhhp
search.app
Caminar en Querétaro: un acto de resistencia en una ciudad diseñada para el automóvil - Tribuna de Querétaro
En una ciudad que crece a ritmo acelerado, caminar debería ser un derecho, no un riesgo. Sin embargo
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Roberto Álvarez @robertoalvarez.bsky.social · 13/11/2025
Por cierto, ¿en dónde celebran los queretanos?
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Ricard Solé @ricardsole.bsky.social · 09/11/2025
What is the origin of diversity in allometric laws scaling across species? Check our new paper led by Andrea Tabi where we propose a new theory of metabolic scaling grounded in thermodynamics and stochastic fluctuations at the cellular level. www.biorxiv.org/content/10.1...
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Roberto Álvarez @robertoalvarez.bsky.social · 23/10/2025
x.com/fciencias/st...
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Quarterly Review of Biology @qrb.bsky.social · 09/10/2025
The Quarterly Review of Biology turns 100! We are celebrating our anniversary with free-to-read articles from the archives, through 2026. Learn more: ow.ly/xXli50X7Z5B
ow.ly
The Quarterly Review of Biology: QRB 100th Anniversary
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Fernando T. Maestre @ftmaestre.bsky.social · 08/10/2025
In #drylands, plants don’t grow randomly — they self-organize into disordered hyperuniform patterns that help them use water wisely & endure extreme aridity. A beautiful hidden logic of nature, revealed in a new @pnas.org study doi.org/10.1073/pnas... including #Maestrelab alumni
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Roberto Álvarez @robertoalvarez.bsky.social · 04/10/2025
No, no tienen cuenta aqui
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Roberto Álvarez @robertoalvarez.bsky.social · 04/10/2025
En la FCN-UAQ hay varixs expertxs de plantas nativas: Mahinda Martínez y Díaz de Salas, Luis Hernández Sandoval y Rolando Tenoch Bárcenas.
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Tom Gauld @tomgauld.bsky.social · 07/09/2025
My cartoon for the @theguardian.com books autumn reads special.
Panel 1
A figure lies on a lounger as a hot, orange sun sets, saying
"The holiday's over."

Panel 2
Now wheeling a suitcase towards a plane in  warm eveniong light
"It's nice to sit around in the sun reading all day."

Panel 3
The plane rises amongst the clouds
"But all good things must come to an end."

Panel 4
The figure deplanes with the suitcase in drizzle
"Coming home has its own pleasures."

Panel 5
The rain is harder. The figure shelter under an umbrella and looks into a shop window containing a selection of books and a sign reading
"New books for autumn!"

Panel 6
The figure now sits at home by an open fire, happily reading a new book. The suitcase has not yet been unpacked.
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Ricard Solé @ricardsole.bsky.social · 27/08/2025
Why is universality such a central concept in complex systems? How does it connect Turing Machines and Spin Systems? In this new paper, Tomáš Gonda and @gemmadlc.bsky.social present an accessible account on how to identify and compare different universalities arxiv.org/pdf/2406.16607
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Sergi Valverde @svalver.bsky.social · 20/08/2025
What do Pac-Man, Space Invaders, and Mortal Kombat have to teach us about #cultural #evolution? As a social-technological phenomenon, #arcade game genres evolved like cultural species—some diversified, while others became "living fossils." 🕹️🧪 👉 doi.org/10.1017/ehs....
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Roberto Álvarez @robertoalvarez.bsky.social · 20/08/2025
Ya está abierto el registro para asistir al Segundo Encuentro de la Red Mexicana de Biología y Matemáticas redmexbiomate.org.mx Nos vemos en Querétaro en Noviembre!
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Ricard Solé @ricardsole.bsky.social · 17/08/2025
What is emergence? This is one of the most central ingredients of complexity, and a challenging one to formalize. Here's a paper by @seanmcarroll.bsky.social & Achyth Parola that attempts to classify different forms of emergence. @manlius.bsky.social @sfiscience.bsky.social arxiv.org/pdf/2410.15468
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Ricard Solé @ricardsole.bsky.social · 25/07/2025
Are there universal principles for the structural limits of living organisms? How can physics provide a theory? Check this @pnas.org paper that derives Kleiber’s law from 1st principles, capturing geometric differences and predicting life forms between plants & animals. www.pnas.org/doi/pdf/10.1...
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Philip Ball @philipcball.bsky.social · 03/07/2025
For the record, there's no point inviting me to give any talks or attend any conferences in the US for the foreseeable future. Sorry, but it's really not worth the risk.
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Manlio De Domenico @manlius.bsky.social · 15/06/2025
"we can safely assess that there were no lasagne encoded in the Big Bang" royalsocietypublishing.org/doi/full/10....
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Roberto Álvarez @robertoalvarez.bsky.social · 10/06/2025
Jajaja, pues sí, ¡qué raro está ese temario! ¿.Qué materia es? ¿De qué licenciatura?
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Roberto Álvarez @robertoalvarez.bsky.social · 28/05/2025
Suena como a una clase de fenómeno de percolación
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Roberto Álvarez @robertoalvarez.bsky.social · 28/05/2025
Supongo que las avalanchas de rocas y de neuronas son fenómenos muy distintos.
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Roberto Álvarez @robertoalvarez.bsky.social · 28/05/2025
Órale qué interesante! La hipótesis que el cerebro está en una zona crítica se basa en la medición de la frecuencia y tamaño de avalanchas neuronales.
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Roberto Álvarez @robertoalvarez.bsky.social · 28/05/2025
¿Por qué te lo recomendó y qué te hizo pensar ahora en esa recomendación ?
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EL PAÍS @elpais.com · 26/05/2025
Israel ha matado en la madrugada de este lunes, mientras dormían, al menos a 36 personas —18 de ellas, niños de corta edad— al bombardear una escuela que se había convertido en refugio para desplazados
elpais.com
Más de 30 muertos, la mitad de ellos niños, al bombardear Israel un colegio que servía de refugio en Gaza
El Gobierno de Netanyahu se ufana de haber golpeado 200 objetivos “terroristas” en 48 horas y el ejército anuncia un inminente “ataque sin precedentes”
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Sergio Huidobro @sergiohuidobro.bsky.social · 17/05/2025
'Amores perros' a un cuarto de siglo de distancia. Para La Jornada, escribí en su momento este recuento celebrando al choque que abrió el siglo II del cine nacional. Les invito a leer en 👉 shorturl.at/K5fyH
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Roberto Álvarez @robertoalvarez.bsky.social · 17/05/2025
¡No he visto eso! En donde vivo, el servicio ya está privatizado y, además de ser costoso, aplican cobros arbitrarios por situaciones como el cambio de medidor, aunque esté en buen estado. Lo reemplazan sin previo aviso solo para generar cargos adicionales.
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Roberto Álvarez @robertoalvarez.bsky.social · 15/05/2025
De acuerdo. La inexistencia de espacios públicos. El modelo del mall como espacio "público" y de convivencia.
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Roberto Álvarez @robertoalvarez.bsky.social · 15/05/2025
Sí, a mi lo del transporte público me parece gravísimo. El tiempo que le invierten a trasladarse de un lugar a otro es impresionante. La casi inexistencia de puentes peatonales: una ciudad para autos.
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Roberto Álvarez @robertoalvarez.bsky.social · 15/05/2025
Desde que llegué, me asombra cómo en Querétaro se ha instalado la idea de que es una ciudad ejemplar y deseada por todos, una narrativa que muchos han aceptado sin cuestionar. Sin embargo, el transporte es deficiente, la oferta cultural casi nula y, además, todo es caro y de mala calidad.
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Hypervisible @hypervisible.blacksky.app · 10/05/2025
Poisoning the air of a Black community for a fucking chatbot.
politico.com
'How come I can’t breathe?': Musk's data company draws a backlash in Memphis
The company’s turbines — enough to power 280,000 homes — run without emission controls in an area that leads Tennessee in asthma hospitalizations.
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Simone Conradi @sconradi.bsky.social · 03/05/2025
A mathematical homage to Andy Warhol, pop art meets complex roots. #MathArt #Mathematics Made with #python #matplotlib #numpy #sympy
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Elisa de Gortari @sangreytrueno.bsky.social · 01/05/2025
Creo que esta es una gran oportunidad para compartir estos cuatro libros de ciencia ficción más o menos reciente que amo (aunque solo uno es de cuentos, el de Starobinets).
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Ricard Solé @ricardsole.bsky.social · 28/04/2025
How can biological systems anticipate future events? In our new paper with @jordiplam.bsky.social, we show how a simple genetic circuit can predict future trends through a simple (and perhaps widespread) mechanism @drmichaellevin.bsky.social @koseskalab.bsky.social www.biorxiv.org/content/10.1...
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Steven Strogatz @stevenstrogatz.com · 29/04/2025
Why study simple mathematical models? "Because they invite improvement," says #NASmember Steven Strogatz in his #NAS162 Research Briefing, and they may suggest spinoffs in neuroscience, social psychology, machine learning, and more. Watch live: ow.ly/V02g50VImXZ
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Roberto Álvarez @robertoalvarez.bsky.social · 24/04/2025
Acá las ligas de la RedMexBioMate @RedMexBioMate que tendrá su segundo encuentro en Querétaro del 4-7 de Noviembre www.redmexbiomate.org.mx instagram.com/redmexbiomate/ www.facebook.com/profile.php?...
redmexbiomate.org.mx
Red Mexicana de Biología y MatemáticasEvento Inaugural Gallery
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Ricard Solé @ricardsole.bsky.social · 14/04/2025
26 years before Watson, Crick & Franklin's DNA discoveries, a Russian scientist, Nicolai Koltsov, with great intuition, said that inheritance should be stored in double-stranded giant molecules using each strand as a template. Hats off. Check this: d1wqtxts1xzle7.cloudfront.net/80280764/lys...
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Roberto Álvarez @robertoalvarez.bsky.social · 04/04/2025
¡Qué buen texto!
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MalBicho ✌️ @malbicho.bsky.social · 03/04/2025
La (i)lógica de la ideología de género Pasen a leer mi breve artículo 🍿 tribunadequeretaro.com/opinion/la-i...
tribunadequeretaro.com
La (i)lógica de la ideología de género - Tribuna de Querétaro
¿Cuántas veces hemos leído o escuchado la expresión “eso es ideología de género”, sobre todo de part
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