Paulo Simões, PhD's Avatar

Paulo Simões, PhD

@pjasimoes

PhD, MSc, BEng. Solar Physicist, flare observations and modeling. Dabbles in Space Weather & related stuff. Professor at Mackenzie University (Brazil). Average guitar player. https://orcid.org/0000-0002-4819-1884

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Latest posts by Paulo Simões, PhD @pjasimoes

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Why does cheating matter? A personal anecdote and an appeal to junior colleagues.

got inspired by some questions from phd students the other day — and also really irritated by senior academics who seem to refuse to get the issues and continue to blame students; hope useful for you! 🩷

olivia.science/cheating

07.03.2026 17:56 👍 75 🔁 22 💬 1 📌 5

yep! like Qualis was 😂

07.03.2026 14:32 👍 1 🔁 0 💬 0 📌 0

and don't get me started on folks that say that passive voice is the norm (there's *nothing* there about this) 😂 (or 😭?)

07.03.2026 14:12 👍 3 🔁 0 💬 1 📌 0

parabéns!!

07.03.2026 13:57 👍 1 🔁 0 💬 0 📌 0

Isso já era uma idiotice com sistemas deterministicos baseados em lógica (mesmo que de software livre, feitos e hospedados no Brasil).
É ainda mais idiota com IA

06.03.2026 23:02 👍 14 🔁 1 💬 0 📌 0

It's not "can 'AI's create software" but "are we willing to accept worse software running more and more of our lives?"

04.03.2026 11:14 👍 81 🔁 5 💬 3 📌 0

gostei da ideia, acho que vou adorar algo nessa linha.

04.03.2026 12:27 👍 0 🔁 0 💬 0 📌 0

okay, Ill bite.
What do you think the point of reading for and writing a literature review is? The process of reading and writing is crucial for THINKING. Your ideas are shaped by all of this, offloading it to gAI, no matter how "good" you think gAI is at it defeats the purpose entirely.

03.03.2026 19:01 👍 1368 🔁 289 💬 52 📌 32

magentic filed for me

04.03.2026 01:28 👍 0 🔁 0 💬 0 📌 0
Observational Evidence Linking Loop Length and Thermal/Nonthermal Peak Timing in Solar Flares - HelioWiki Home Page

new RHESSI nugget by Solomon Perryil (PhD candidate at CRAAM, Mackenzie, Brazil) #heliophysics

heliowiki.smce.nasa.gov/wiki/index.p...

28.02.2026 16:07 👍 6 🔁 1 💬 0 📌 0

obrigado por compartilhar! peguei o link pra assistir depois

02.03.2026 21:14 👍 1 🔁 0 💬 0 📌 0
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Woah! Stunning prominence lifting off the Sun’s northern limb. Spectacular eruption. No impacts to Earth anticipated.

02.03.2026 10:06 👍 112 🔁 17 💬 1 📌 2
Observational Evidence Linking Loop Length and Thermal/Nonthermal Peak Timing in Solar Flares - HelioWiki Home Page

new RHESSI nugget by Solomon Perryil (PhD candidate at CRAAM, Mackenzie, Brazil) #heliophysics

heliowiki.smce.nasa.gov/wiki/index.p...

28.02.2026 16:07 👍 6 🔁 1 💬 0 📌 0

"Fundamental science is a long game, and government departments and agencies can sponsor long-term projects, whether the goal is mapping the entire U.S. coastline or the entire human genome." Or building an advanced space telescope 🔭 to find out if humanity is truly alone in the cosmos.

27.02.2026 20:13 👍 48 🔁 17 💬 2 📌 0

I want to repeat comments I already made on this plot since some news outlets seem to ignore them: Hubble will not reenter until early 2030s. The curve here is alarming, but will flatten out as we hit solar minimum in the coming years. I still think it's time for NASA to take action on a reboost.

27.02.2026 21:08 👍 136 🔁 38 💬 5 📌 1

👇 not only in the US.

27.02.2026 14:55 👍 1 🔁 0 💬 0 📌 0

É isso. Mesmo a visibilidade é questionável, porque muitas áreas tem repositórios como arxiv, biorxiv etc de livre acesso (sei que muitas áreas não tem isso!).

27.02.2026 12:13 👍 1 🔁 0 💬 0 📌 0

cheio de Diamond Open Access mas temos que correr atrás do fator de impacto, jogando dinheiro pra publisher, por causa de avaliação. E faltando bolsas. Difícil, né.

27.02.2026 11:54 👍 1 🔁 0 💬 1 📌 0

that's great! ☺️ happy to know it was already useful!

26.02.2026 01:52 👍 0 🔁 0 💬 0 📌 0

🤦

26.02.2026 01:26 👍 1 🔁 0 💬 0 📌 0

Hubble Space Telescope orbit height versus the solar sunspot number. Periods of higher activity are associated with faster drops in height. (not as up to date as the plot from @planet4589.bsky.social) We're also looking at shorter periods, for effects of flares and geomagnetic storms

25.02.2026 13:16 👍 16 🔁 6 💬 0 📌 0

cannot access the full text you linked...

25.02.2026 12:47 👍 0 🔁 0 💬 0 📌 0
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there's a correlation, I believe. we're working on the details!

25.02.2026 12:45 👍 12 🔁 0 💬 1 📌 0

Write accessibly!

It's so much more fun when readers understand what you've written and decide that you're wrong than when they *don't* understand but assume that you're right.

22.02.2026 00:46 👍 186 🔁 20 💬 1 📌 2
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The GSST/CBERS-5 International Symposium on Machine Learning in Heliophysics and Space Weather, August 17-21, Brazil. Abstract submissions open until March 30. #heliophysics

indico.global/event/16921/

20.02.2026 17:19 👍 4 🔁 2 💬 0 📌 0
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Observational Evidence Linking Loop Length and Thermal–Nonthermal Peak Timing in Solar Flares Observational Evidence Linking Loop Length and Thermal–Nonthermal Peak Timing in Solar Flares, Perriyil, Solomon M., Sadangaya, Soumya S., Giménez de Castro, C. Guillermo, Simões, Paulo J. A.

New #heliophysics paper by grad students Solomon Perryil & Soumya Shree! In a statistical study of 96 flares we show that longer magnetic loops produce larger delays between the nonthermal and thermal peaks(R~0.9), especially for flares that follow Neupert effect. iopscience.iop.org/article/10.3...

20.02.2026 12:31 👍 3 🔁 1 💬 1 📌 0
Post image

The GSST/CBERS-5 International Symposium on Machine Learning in Heliophysics and Space Weather, August 17-21, Brazil. Abstract submissions open until March 30. #heliophysics

indico.global/event/16921/

20.02.2026 17:19 👍 4 🔁 2 💬 0 📌 0

Even if you read and understand all the code generated by the tool (do people still do that, or are they now at the point where they trust it without reading it?), do you understand it as well as if you had written it yourself?

20.02.2026 08:34 👍 14 🔁 3 💬 1 📌 0
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The Sun’s Ultraviolet Mood Swings Are More Extreme Than We Thought - NSO - National Solar Observatory Scientists have reconstructed the Sun’s UV history. See how 1,000 years of solar activity shapes our atmosphere and aids exoplanet research.

Raffaele Reda, Valentina Penza, Serena Criscuoli et al. Modeling Decadal and Centennial Solar UV Irradiance Changes. #SolarPhysics 300, 173 (2025). doi.org/10.1007/s112... #OpenAccess

20.02.2026 09:21 👍 7 🔁 3 💬 0 📌 0

The Sun was spotless when these tiny flares were observed in 2020. Are they different from X-ray flares when the Sun is active? Really interesting work from @glasgow.ac.uk pals and colleagues elsewhere #heliophysics

20.02.2026 09:23 👍 11 🔁 2 💬 0 📌 0