Col·legi Oficial de Químics de Catalunya. Estimem la química com a palanca essencial pel progrés de la societat.
Catalunya
Joined December 2011
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Químics de Catalunya retweeted
Every 8 minutes a radio signal arrives from deep space.
And now we know who’s sending it.
Scientists have finally solved the mystery of these strange pulses. The source is an extremely rare stellar pair: a “dead” star (a white dwarf) and a star very much like our Sun.
The strangest part is how slowly the “dead” star spins. Objects like this usually rotate extremely fast, but this one takes roughly 8 minutes to complete a single rotation. And it is with this slow, almost majestic spin that it regularly launches powerful radio pulses that reach Earth.
Combinations like this are exceptionally rare and give astronomers a unique chance to study how stars evolve and how their magnetic fields behave under extreme conditions.
It took long observations to crack the case: researchers compared data from multiple radio telescopes until they could finally link the pulses to this unusual pair.
One pulse every 8 minutes.
Quiet. Regular. And until recently — completely unexplained.
Químics de Catalunya retweeted
An unpopular hypothesis linking Alzheimer’s disease to the loss of crucial neurons has made a comeback.
Learn more: scim.ag/3WDDLWI
ALT Long-overlooked Alzheimer’s hypothesis makes a comeback Decades after it fell out of fashion, researchers return to an idea linking the disease to the loss of crucial neurons
Químics de Catalunya retweeted
🔢 El BeBras ja és aquí!
Ens encanta veure com els centres educatius s'impliquen en aquesta iniciativa i animen el seu alumnat a posar a prova la lògica, el raonament i el pensament computacional.
👏 Molta sort a tots els participants!
#Bebras #PensamentComputacional
🧠🔢 Arriba el Concurs de Matemàtiques BeBras!
Els nostres alumnes participen en el concurs Bebras, un repte que posa a prova el pensament computacional, la lògica i la capacitat de resoldre problemes.
A través de reptes engrescadors, treballen el raonament, la…
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Químics de Catalunya retweeted
The collective intelligence of ants solving the “piano movers” puzzle.
📽️: Dreyer et al., PNAS 2025
Químics de Catalunya retweeted
Exercici al llarg de la vida enriccanela.cat/exercici-al-…
Químics de Catalunya retweeted
Years ago, Wendy Valencia Montoya touched a flower in the Amazon rainforest, startling in its warmth. Back then, researchers thought that heat-producing plants mainly wielded heat as a way to volatize scents that tempt pollinators.
“I decided to challenge this view and ask a more radical question: can heat itself act as a signal to guide pollinators," writes Valencia Montoya in her 2026 Science & SciLifeLab Prize for Young Scientists grand prize-winning essay.
Her piece explains how heat itself is a pollinator beacon with ancient origins. Learn more about the work: scim.ag/4zhmlN9
ALT Wendy A. Valencia-Montoya
Químics de Catalunya retweeted
El mes vinent, la junta comarcal del Vallès Occidental del CoMB celebra l'Acte de la Professió Mèdica 2026. ✍️Guardeu la data!
📆01 de desembre
🕑A les 20:00h
📍El Vapor de Prodis (Terrassa)
Ja podeu inscriure-us-hi👉 comb.cat/ca/comunicacio/agen…
Químics de Catalunya retweeted
在古代没有画圆工具，于是古人就想到用绳子绕着三颗钉子转一圈就画好一个圆形～
Readers added context they thought people might want to know
A circle is made from keeping a steady distance from a single central point, not 3. What is drawn above is a lopsided ellipse, not a circle.
en.wikipedia.org/wiki/Compass_(…
Químics de Catalunya retweeted
Avui a @quimics celebrem una jornada de portes obertes. Retrobaments,records i xerrem amb molta ciència i tècnica per compartir.
Químics de Catalunya retweeted
"La innovación hace prosperar a la industria manufacturera" share.google/wI4M6CN2T9M8g4l…
Químics de Catalunya retweeted
🏆 Eugenio Coronado, Director of ICMol @UV_EG , receives the 5th National Nanotechnology Award from @Abioteclegal in Madrid.
🔬 Recognising his contributions to molecular magnetism, spintronics and 2D materials.
🔗 icmol.es/new.php?pas=1254&me…
Químics de Catalunya retweeted
Twin pregnancy is associated with higher maternal, fetal and neonatal morbidity and mortality. A Primer in Nature Reviews Disease Primers discusses the epidemiology, pathophysiology, diagnosis, screening and management of twin pregnancy. go.nature.com/3V2fbhJ
ALT This is figure 3, which shows models and mechanisms of monozygotic twinning.
Químics de Catalunya retweeted
Three people with epilepsy resistant to drug treatment saw the number of seizures they had per month fall by more than 90%, after gene-laden viruses were infused directly into their brains
go.nature.com/4z8SwhQ
Químics de Catalunya retweeted
David Baker, 2024 Nobel Prize laureate in chemistry, achieved the seemingly impossible feat of building entirely new kinds of proteins.
In recent years, one incredible protein creation after the other has emerged from Baker’s laboratory. They range from new nanomaterials where up to 120 proteins spontaneously link together (see animation) to proteins that function as a type of molecular rotor.
Animation: ©Terezia Kovalova/The Royal Swedish Academy of Sciences
Químics de Catalunya retweeted
Bon dia! Un espectacular fenomen meteorològic va sorprendre l’illa italiana de Capri amb la formació simultània de dues mànegues marines davant dels emblemàtics Faraglioni. El vídeo (del dia 7) mostra el fenomen associat a les condicions típiques de la tardor a la Mediterrània.
Químics de Catalunya retweeted
En 1948, la única graduada en astronomía de su promoción en Vassar recibió un no de Princeton por ser mujer. Años después midió cómo giran las galaxias y aportó las pruebas que demostraron la existencia de la materia oscura. Se llamaba Vera Rubin. Tira del hilo 🧵👇🏽👇🏽👇🏽
Químics de Catalunya retweeted
Finalitza la campanya internacional per promoure la seguretat dels medicaments #MedSafetyWeek.
El paper dels farmacèutics no acaba mai: informar, educar i notificar sospites de reaccions adverses està a les nostres mans!
👉Les reaccions adverses: no les ignoris, notifica-les!
Químics de Catalunya retweeted
"I was late learning about science … For much of my scientific training I feared I was behind my peers. But I have been able to close the gap—and that is something to be proud of." #CelebrateFirstGen scim.ag/43x2o7j
ALT A conceptual illustration of a person with a smaller version of themselves inside their head walking to a bright open door. Text is: From homeless to Ph.D.: How I found my way into research.
Químics de Catalunya retweeted
My lovely father died of Alzheimer's last year, and since then, I've been digging into the disease to try to understand what happened to him. I was astonished to discover that scientists think it may start in the nose, says New Scientist's new columnist... newscientist.com/article/259…
