Vladimir Vargas

🔬El #CSIC es la sexta institución pública de #ciencia más importante del mundo

🌍 Tiene vigentes 525 acuerdos internacionales en 73 países

💡"Somos inevitablemente internacionales", Eloísa del Pino, presidenta del CSIC, en el 
#XEncuentroCSICInternacional

X-ray video from a 2024 study reveals an eel’s daring escape from a predator’s stomach.

Learn more: https://scim.ag/4gjvYmP #ScienceMagArchives

As ararinhas passaram por treinamentos para aprender a se alimentar sozinhas e a reconhecer predadores, sempre sob monitoramento rigoroso. A reintrodução representa não apenas a retomada de uma espécie ameaçada, mas também um avanço importante para a preservação da biodiversidade brasileira.

Google é condenado a pagar 2 bilhões por coleta fraudulenta de dados Big tech foi declarada culpada de violar privacidade por continuar coletando dados privados de usuários de aplicativos em smartphones, mesmo depois de opção desativada

Big tech foi declarada culpada de violar privacidade por continuar coletando dados privados de usuários de aplicativos em smartphones, mesmo depois de opção desativada

revistaforum.com.br/ciencia-e-te...

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Tem que admirar a versatilidade dessas empresas da Faria Lima: um dia tão lavando dinheiro do crime organizado, no outro tão analisando política econômica na tv.

2025, e voltamos aqui.

The Molecular Bond That Helps Secure Your Memories | Quanta Magazine How do memories last a lifetime when the molecules that form them turn over within days, weeks or months? An interaction between two proteins points to a molecular basis for memory.

Memories are made of molecules.

I'm often asked if I'll redo the 2019 quantum factoring estimate. Denser storage by yokes, smaller magic factories by cultivation, slimmer approx arithmetic by Chevignard et al… surely the cost is lower now?

Yes, it's lower now.

security.googleblog.com/2025/05/trac...

arxiv.org/abs/2505.15917

Quantum transducer enables optical control of a superconducting qubit – Physics World Physicists create the first device that can control a superconducting microwave qubit using only light

Physicists create a microwave–optical quantum transducer that can control a superconducting microwave qubit using only light. 🧪⚛️ physicsworld.com/a/quantum-tr...

Congo boat disaster death toll rises to 148, with more than 100 still missing Fire broke out during onboard cooking before wooden vessel capsized with 500 passengers aboard The death toll from a boat fire and capsizing in the Democratic Republic of Congo earlier this week has risen to 148 with more than 100 people still missing, officials said on Friday. About 500 passengers were on board the wooden boat when it capsized on Tuesday after catching fire on the Congo River in the country’s north-west. Continue reading...

Congo boat disaster death toll rises to 148, with more than 100 still missing

Imagem com fundo preto e borda branca. Está escrito "nazista etm que voltar a ter medo".

Compartilhem ao máximo!

Ju Wenjun wins Game 5 of the Women's World #Chess Championship against Tan Zhongyi and now leads the match 3-2! 😮

lichess.org/broadcast/fi...

Great interview in which Ewin Tang describes how she shook the quantum world at age 18.

2025 Women's World Chess Championship Game 1: A Quiet Appetizer Ju Wenjun and Tan Zhongyi enter the match well-prepared, in an expectedly safe game, leaving lots to be expected in the upcoming games.

Game 1 of the FIDE Women's World Chess Championship 2025 ended in a draw. Read our recap blog and replay the game with annotations by WIM Silvia Raluca Sgîrcea.

"I.A. GENERATIVA COMO DEMOCRATIZAÇÃO DA ARTE"

Acredito q quando defendem o uso da tecnologia com esse argumento não falam de ARTE enquanto conceito, mas como uma mera IMAGEM.

A galera tá usando como se estivesse buscando uma IMAGEM no Google para exemplificar ou enfeitar uma ideia num slide.

Desenho de lápis

Targeting the retinoid signaling pathway with YCT-529 for effective and reversible oral contraception in mice and primates - Communications Medicine Mannowetz and Chung et al. investigated the properties and efficacy of the RARα selective antagonist YCT-529 as a male contraceptive. Mouse and non-human primates experienced fertility inhibition through disruption of spermatogenesis which was reversed upon cessation of oral administration.

There is currently no oral birth control option available to men to prevent pregnancy in their sexual partners. A study in Communications Medicine lays the groundwork for human trials of YCT-529, a non-hormonal male contraceptive. 🧪

What the Venezuelans Deported to El Salvador Experienced Exclusive photos of the arrival of Venezuelan detainees deported from the U.S.

“One young man sobbed when a guard pushed him to the floor. He said, ‘I’m not a gang member. I’m gay. I’m a barber.’ I believed him. *** He “began to whimper,” as his head was roughly shaved, “folding his hands in prayer as his hair fell.” He “asked for his mother & cried as he was slapped again.”

Thank you to everyone that came to my talk today and all the support over the last few weeks.

Today was an important day for protecting the scientific record #apsmarch

Deaths reported in Gaza as Israeli military conducts ‘extensive strikes’ despite ceasefire Benjamin Netanyahu’s office blames Hamas’s refusal to release hostages for IDF strikes that are reported to have killed at least 30 people Israel’s military said it was conducting “extensive strikes on terror targets” in Gaza early on Tuesday, with…

Deaths reported in Gaza as Israeli military conducts ‘extensive strikes’ despite ceasefire

‘Once in a Century’ Proof Settles Math’s Kakeya Conjecture | Quanta Magazine The deceptively simple Kakeya conjecture has bedeviled mathematicians for 50 years. A new proof of the conjecture in three dimensions illuminates a whole crop of related problems.

The deceptively simple Kakeya conjecture has bedeviled mathematicians for 50 years. A new proof of the conjecture in 3D illuminates a whole crop of related problems. Joseph Howlett reports:
www.quantamagazine.org/once-in-a-ce...

There have been people less than helpful in my journey here. I wanted to acknowledge those too, bc I know I am not unique in this experience. No thank you to the physics study assoc that made me sing songs about how women couldn't study physics without sleeping with the professor, the day I stepped into university life. No thank you to the 5th year physics student that decided to assign me a stripper name within the first minute of meeting me in the physics coffee corner in my first year. No thank you to the technician that was responsible for onboarding me on the use of the cluster in my third year who raised his eyebrows and asked me if that meant I was some sort of computer girl. No thank you to the senior researcher that sent me utterly inappropriate texts after a conference, then proceeded to apologise months later by telling me they had not been meant for me anyway so no hard feelings remain hopefully And no thank you to him for attending every conference I've been to since. No thank you to the people who told me that it was surprising that I was doing a PhD since I was a girl. No thank you to the man who mistook me for a coffee lady at a conference, and after having to correct him two times that I did not work there, responded with you should consider it. No thank you to the researcher that asked me what I was wearing underneath my outfit during a conference. No thank you to the physicist who declared to a room full of other physicists that biologists don't know how to design an experiment. No thank you to the people who have called me scary instead of strong and intimidating instead of intelligent. And finally, no thank you to the exec board of the TU Delft, whose knee-jerk reaction to being held up a mirror about the social safety at the university, was to sue the party holding up the mirror instead of looking at the problems they highlighted. ... You have made me feel like I do not belong in science & I cannot forgive you for that.

A friend included this anti-acknowledgement section on her PhD thesis. She also added the proposition: “Systematic bullying and undermining of girls and women in STEM starts early on and is the reason why they do not stay in science and related fields.”
Absurd we still need to go through this
🧪👩‍🔬

Tenho os olhos cansados de olhar pra o além.

🦴Nuevos hallazgos revelan que ya se producían herramientas de hueso de manera habitual hace 1,5 millones de años

El descubrimiento, liderado por el #CSIC, supone un hito en la arqueología de los orígenes humanos

➡️https://tinyurl.com/44efm3w6

Dentro hilo🧵

Comment on "InAs-Al hybrid devices passing the topological gap protocol", Microsoft Quantum, Phys. Rev. B 107, 245423 (2023) The topological gap protocol (TGP) is presented as "a series of stringent experimental tests" for the presence of topological superconductivity and associated Majorana bound states. Here, we show that...

I had made Microsoft Quantum aware of issues before publication of this latest Nature paper (which uses it tune up their devices).

Since they seem to not care, I have make these issues public.

In short: The topological gap protocol and all claims based on it are flawed.

arxiv.org/abs/2502.19560

Non-stabilizerness of Neural Quantum States We introduce a methodology to estimate non-stabilizerness or "magic", a key resource for quantum complexity, with Neural Quantum States (NQS). Our framework relies on two schemes based on Monte Carlo ...

The magic 🪄 of Neural Quantum states, our paper : arxiv.org/abs/2502.09725
We introduce two general strategies to compute stabilizer Renyi entropies with NQS/ variational Monte Carlo. Magic is one of the measures often used to quantify how hard it is to classically simulate a quantum system. (1/4)

“You didn’t just come up with a cool hash table,” professor William Kuszmaul remembers telling undergraduate Andrew Krapivin (pictured). “You’ve actually completely wiped out a 40-year-old conjecture!”
https://buff.ly/4gySAOz