Química-Bióloga, MSc Inmunología, sonorense haciendo ciencia. Torpe y distraída. No DM. I’ve got a feeling that keeps me on my toes ♪
Jupiter and surroundings ✨
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Lo vi en la cuenta de @Dani_Pellicer y me gustó. Para organizar la información, un hilo de hilos de Inmunología 🧵
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No soy chismosa, solo analizo y comparo datos, evidencias y/o argumentos para establecer conclusiones.
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Rosario in Paris ᥫ᭡ retweeted
El Premio Nobel de Química 2026: Desentrañando el misterio de la quiralidad molecular.
La Real Academia de las Ciencias de Suecia ha otorgado el Premio Nobel de Química 2026 de manera conjunta al francés Henri B. Kagan y al japonés Kenso Soai por el descubrimiento fundamental de los efectos no lineales y la autocatálisis en la síntesis orgánica asimétrica. Este trascendental reconocimiento premia décadas de investigación dedicada a resolver un enigma de la naturaleza: cómo la materia adoptó una orientación especular única (homoquiralidad), un requisito indispensable para el diseño de fármacos modernos eficaces y seguros. Va hilo divulgador sobre el premio y los premiados. /1
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« Enterrado a kilómetros bajo tierra, IceCube observa el universo a través de pequeños destellos en la oscuridad. Una maravilla de la ciencia moderna. »
🤩🧊
How do you build a telescope for particles that can pass straight through Earth? You turn a billion tonnes of Antarctic ice into the detector.
IceCube, the observatory behind Francis Halzen’s Nobel-winning work, has 5,160 light sensors frozen deep beneath the South Pole. Spread through a cubic kilometre of ice, they wait for an encounter that almost never happens.
Most neutrinos pass through unnoticed. Occasionally, one interacts with an atom, producing charged particles that race through the ice faster than light travels through ice. This does not break Einstein’s speed limit. Light slows down in ice.
Those particles emit a faint glow called Cherenkov light. By measuring which sensors light up, when they do, and how much light they receive, researchers estimate the neutrino’s energy and arrival direction.
The enormous detector gives these elusive particles more matter to interact with. The clear, deep ice lets their light reach the sensors.
Because neutrinos have no electric charge, cosmic magnetic fields cannot bend their paths. Their arrival directions can help trace the distant environments that produced them.
So, buried kilometres underground, IceCube watches the universe through tiny flashes in the dark. A marvel of modern science.
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La nueva imagen del James Webb es un hermoso cúmulo estelar, en donde podemos ver el patrón de ocho puntas del telescopio. 🤩🔭
La región a la izquierda de la estrella central está llena de gas de hidrógeno atómico caliente, lo que crea un resplandor dorado, mientras que a la derecha está repleta de hidrógeno molecular más frío. Las protoestrellas incrustadas en la región extrema derecha expulsan flujos que provocan choques y calientan la región, lo que confiere a ciertas zonas un tono rojizo.
La estrella central y las estrellas incrustadas en la región dorada se encuentran en una etapa más madura de su ciclo de vida, que las protoestrellas a la derecha. Su calor descompone el hidrógeno molecular en átomos, lo que provoca las diferencias de temperatura y color. El gas más frío y denso, donde aún no se han formado protoestrellas, se observa en gris.
©️NASA, ESA, CSA, STScI; A. Pagan.
esawebb.org/images/weic2620a…
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Rosario in Paris ᥫ᭡ retweeted
Have you heard about chirality?
This year's chemistry prize is all about chirality - this is when molecules appear in two forms that mirror each other – just as our hands mirror each other.
Want to understand better? Play our chirality game: educationalgames.nobelprize.…
ALT A simple line drawing of a snail looking at itself in a mirror. The mirror reflects the snail's shell demonstrating the concept of chirality.
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Y el premio Nobel de química es para la ciencia básica: Henri B. Kagan y Kenso Soai por el descubrimiento de efectos no lineales y autocatálisis en la síntesis orgánica asimétrica.
Porque es fundamental conocer cómo se comportan las moléculas y sus interacciones; gracias a esos químicos pioneros se han comprendido múltiples mecanismos de reacción que los vemos aplicados en el día a día.
😍🧪
Thanks to the discoveries that are being recognised by the #NobelPrize in Chemistry 2026, chemists have gained fundamental new tools for use in their daily work but, above all, these discoveries have contributed to solving one of chemistry’s greatest mysteries: how homochirality – like that found in all living beings – can be created.
The Soai reaction – developed by 2026 laureate Kenso Soai – has awakened new enthusiasm in chemists who want to understand the life’s origins. Around the world, researchers are now trying to repeat Soai’s achievement, but with the aim of producing homochiral amino acids and sugars.
The non-linear effects that fellow laureate Henri B. Kagan discovered have become an important tool for chemists when they design new reactions. The fact that a reaction is non-linear provides chemists with information about how it occurs. This information can be used to optimise the reaction, so they can obtain the purest possible enantiomers of the product. This is vital for every company that manufactures substances that are intended to interact with living beings, such as pharmaceuticals, flavours, scents and agricultural chemicals. In some cases, it is also important in the production of new materials.
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Rosario in Paris ᥫ᭡ retweeted
In 2020 chemistry laureates Emmanuelle Charpentier and Jennifer Doudna shared the prize for discovering one of gene technology’s sharpest tools: the CRISPR/Cas9 genetic scissors.
Stay tuned to our channels for the announcement of the 2026 chemistry laureate(s) later today.
ALT Emmanuelle Charpentier smiling and holding her Nobel Prize medal.
ALT Jennifer Doudna looking at the Nobel Prize medal with a smile in a garden with greenery and purple orchids.
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Rosario in Paris ᥫ᭡ retweeted
Habrá alguien por ahí que nos esté viendo y pueda ayudarnos con éste proyecto el cual a sido detenido pues el apoyo No llega , Tengo una docena de 🐈 esperando q este sitio sea habilitado para poder resguardarse aquí 😔 Si alguien nos pudiera ayudar así 👇 Sería maravilloso SOS
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Rosario in Paris ᥫ᭡ retweeted
Video de YouTube: Premio Nobel de Física 2026 👏🏽
youtu.be/kKLtxmIEhY4?is=5dE_…
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Rosario in Paris ᥫ᭡ retweeted
Bueno, les dejo un videito que hice en mi canal de Youtube sobre el Premio Nobel de Física 2026 🥳
youtu.be/kKLtxmIEhY4?is=5dE_…
¡Si les gusta se suscriben y comparten! 🥹☺️
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Rosario in Paris ᥫ᭡ retweeted
🎵 Twinkle, twinkle, little bat!
How I wonder what you’re at!
Up above the world you fly,
Like a tea-tray in the sky. 🎵
Perhaps the Hatter spied this cosmic teacup, captured by @chandraxray (blue) and @NASAHubble (red and green)? More: chandra.si.edu/photo/2019/te… #MadHatterDay
ALT This image combining X-ray data from Chandra and optical data from Hubble features a galaxy nicknamed the Teacup due to its unusual shape. A brilliant off-center purple glow marks the location of the galaxy, whose central supermassive black hole is causing an ongoing storm. The wispy, green and blue, handle-shaped feature to the galaxy’s left is a bubble formed by one or more eruptions powered by the black hole. A few tiny red and yellow dots scattered across the image represent other objects in the same area of the sky. The image is watermarked “X-ray: NASA/CXC/Univ. of Cambridge/G. Lansbury et al; Optical: NASA/STScI/W. Keel et al.”
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Rosario in Paris ᥫ᭡ retweeted
Congratulations to Francis Halzen, who was awarded the Nobel Prize in Physics for decisive contributions to @uw_icecube and the discovery of high-energy neutrinos of astrophysical origin 🧊
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Rosario in Paris ᥫ᭡ retweeted
Scientists have long known that the cosmos contains natural particle accelerators, which fire out particles with energies up a million times more than can be achieved in laboratories on Earth. Much about these sources is mysterious: what are they, where are they, and what are the main processes inside them?
Neutrinos with extremely high energies are created in the same environments as other types of particles. However, unlike other particles, neutrinos reach us without changing direction or losing energy. This means they can provide information that is not available in any other way.
Newly awarded physics laureate Francis Halzen first presented his vision for capturing neutrinos at the South Pole in 1988. When a neutrino collides with an atomic nucleus, it produces a flash of light that can be tracked by sensors in the clear glacial ice. The South Pole’s ice has many advantages, as it is free from various types of interference and the area is geologically stable, with no earthquakes. Halzen and his idea soon gained the support of other researchers and, just a few years later, preliminary testing was conducted on sensors in ice.
#NobelPrize
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Rosario in Paris ᥫ᭡ retweeted
When “Better” Microscopy Becomes Fiction
In light of the current controversy surrounding the use of AI in the Nikon Small World in Motion competition, I want to point out that AI enhancement of still microscopy images may be even harder to detect. With a movie, our eyes have temporal information that can sometimes clue us in to the AI-ness of what we are seeing; with a single image, that information is gone. Here is an example. The top image is the best reflected-light image I was able to acquire when I was young and had time to do such things. I never had the proper equipment for this type of imaging, which is essentially macrophotography through a microscope. I was simply holding a cheap digital camera up to the eyepiece by hand, and this was the best result I could get. The image below was generated by giving that original image to ChatGPT with the simple prompt, “Make this image of an ant that I acquired using a microscope better.”
The original image contains limitations: blown highlights, relatively low local contrast, noise and grain, limited depth of field, and regions where morphology simply isn’t resolved. The AI version doesn’t merely suppress those imperfections; it converts uncertainty into apparent information. The head acquires extremely convincing cuticular texture, the compound eye gains a beautifully resolved ommatidial lattice, individual hairs become sharply defined, thoracic surface structures become crisp, and the mandibles and antennae become more cool looking. Importantly, these additions are biologically plausible. Nothing immediately screams “AI.” That is what makes this fundamentally different from ordinary sharpening, denoising, deconvolution, or contrast adjustment. The resulting image invites the viewer to make biological observations about structures that may never have been recorded by the camera in the first place.
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