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Maithe Arruda Carvalho
@arrudacarvalho.bsky.social
Neuroscientist. Associate Professor @ University of Toronto Scarborough.
"By the end of 2030," reports NYT, the amount of energy used by data centers"is expected to quadruple, eclipsing the power used by all countries in South America and Africa combined." This is extinctionism.
Glad to share that our article is finally out! Kirk did a wonderful job designing a 3D printed stereotaxic apparatus controller for fully motorized control, customizable buttons, and a graphic user interface that allows you to load and move to preset coordinates during surgery.
SfN Journals@sfnjournals.bsky.social · last wk.#eNeuro: Mulatz et al. designed StereoPylot, a customizable motorized add-on for stereotaxic equipment that increases accuracy by automating repetitive movements and calculations, reducing mistakes in surgery while remaining affordable and open source. https://doi.org/10.1523/ENEURO.0460-25.2026
Uncontrolled AI is a threat to our jobs, our environment, and our communities. Canadians across the political divide know this, and that’s why they’re fighting back. The public must assert its role in the technologies shaping our lives, and draw hard lines where AI causes nothing but harm.
Thank you @jamellebouie.net - it’s been driving Canadians bananas to see the light response from democrat & anti-Trump Americans to this particular vibe (and why the broken trust goes far deeper than just Trump now. Generational wounds to the relationship.)
Thor Benson@thorbenson.bsky.social · 2w agoAs a Canadian-American, I am granting @jamellebouie.net honorary Canadian status for this video
A Bagful of Reasons to Create Public Grocers Shoppers would save, local food would flourish and more, say advocates. thetyee.ca/Analysis/202...
A Bagful of Reasons to Create Public Grocers | The Tyee
Shoppers would save, local food would flourish and more, say advocates.
thetyee.ca
Not a single word about how these tariffs violate both our WTO & USCMA obligations. Every time Trump does this, the NYT & other outlets simply write as if we live in an international vacuum, where the US has no obligations under signed, ratified international treaties. It's journalistic malpractice.
The New York Times@nytimes.com · 2w agoPresident Trump signed an order imposing a 50% tariff on a wide range of goods from Canada, including hockey sticks, wine and cement.
As a taxpayer in Ontario, Canada, I really dislike paying for propaganda ads by both Ford and Carney.
Manuscripts with women as corresponding authors are less frequently sent out for review at Science. The ones reviewed receive less favorable reviews by both male and female reviewers.
Javi Ibarrondo@jibarrondo.bsky.social · 3w agoEditorial and peer review dynamics at elite general science journals | Science Advances www.science.org/doi/10.1126/... 🧪
Mark Carney's made deep cuts to Natural Resources Canada that strip away science-based expertise on forest fires, "decimating capacity" to track wildfire activity. Only one forest pathologist now monitors the entire forestry system east of the Rockies. 5/ www.nationalobserver.com/2025/12/05/n...
Cuts at Natural Resources Canada ‘decimate’ wildfire and flood tracking capacity, unions warn
Carney's cuts have hit Natural Resources Canada, causing uproar from public sector unions warning the layoffs will hurt Canada's ability to respond to cliamte change and protect Canadians from wildfir...
nationalobserver.com
Very sad to hear of Susumu’s passing. His scientific creativity and intuition were inspiring. As director of @RIKEN_CBS, he hired a remarkable group of young scientists, including me, and set us free to pursue bold ideas. news.mit.edu/2026/mit-pro...
MIT Professor Susumu Tonegawa, renowned molecular biologist and Nobel laureate, dies at 86
Susumu Tonegawa, a renowned MIT professor of biology and neuroscience and a Nobel laureate, has died at the age of 86. His discovery of how the immune system generates many different antibodies earned...
news.mit.edu
This government is spending billions of dollars in public money to expand the very industry that’s causing climate breakdown — at a moment when renewables are cheaper and more available than ever before. /2
Incredibly brazen for the Prime Minister to boast about the “lasting benefits” of expanding fossil fuel production on a day like today. Record-breaking heatwaves. Toxic smoke engulfing cities and towns. Out of control wildfires forcing entire communities to evacuate. /1
Mark Carney@mark-carney.bsky.social · 3w agoThe world wants to do more with Canada. Our MOU with Alberta will unlock those opportunities in energy — and create lasting benefits for Canadians.
This is exactly what Canada should do. www.ctvnews.ca/business/art...
New York won’t build big data centres for a year as it weighs energy and climate risks
No large data centres can be built in New York for up to a year as the state creates rules to protect the environment and its energy grid from the power-hungry facilities fueling artificial intelligen...
ctvnews.ca
The PM needs to explain the math of the Gordie Howe Bridge deal. The tolls were supposed to pay the taxpayer back. Now 50% for the first 15 years is being put into a development fund. The New York Times is reporting that 50% will be controlled and accessed by Americans.
Hippocampal engrams configure prefrontal context representations to guide flexible decisions Impressive combo of methods to manipulate and record this process: www.biorxiv.org/content/10.6...
Hippocampal engrams configure prefrontal context representations to guide flexible decisions
Flexible behavior requires using past experiences to configure cortical computations to suit current task demands. A central question in neuroscience is how memory representations control such reconfi...
biorxiv.org
Debate was shut down, and scientists, public health and environmental experts were not allowed to testify before the bill was passed. Another gift to powerful corporations at the expense of Canadians. Legislation by lobbyists.
Glewwe et al. demonstrate that female mice outperform males in a touchscreen set-shifting task, suggesting that stable choice commitment in females paradoxically enhances cognitive flexibility
Sex-biased computations underlying differential set shift performance in mice
Neuropsychopharmacology - Sex-biased computations underlying differential set shift performance in mice
nature.com
This story is outrageous. Read it if you have time. Canada Inc. will protect profits at all cost. "It's pretty outrageous … what you've got is cabinet overruling science," said Dr. Trevor Hancock, a public health doctor with the Canadian Association of Physicians for the Environment." #CdnPoli
T. Ryan Gregory 🇨🇦@tryangregory.bsky.social · 2mo ago
I’ve officially resigned as Associate Editor for Frontiers in Systems Neuroscience. It used to be a reputable journal, but became a case study in how forced automation destroys academic integrity. 👇
This blew my mind. Some of the largest data centers can require up to 5 million gallons of water per day, equivalent to the water use of 50,000 people. Why are we selling out the survival of our planet to enrich a handful of Big Tech CEOs?
Majority of US’s new AI datacenters to be built on drought-hit land
Guardian analysis finds facilities to be built in some of the driest areas as outcry grows over water needed to power AI
theguardian.com
New paper out! For decades there has been a ‘standard model’ for gamma oscillations. This upends that model - PFC gamma oscillations are not one thing. Rather they dynamically recruit diverse cell type-specific synchrony motifs to implement multiple functions: www.sciencedirect.com/science/arti...
Prefrontal gamma oscillations engage dynamic cell-type-specific configurations to support flexible behavior
Cognitive dysfunction in conditions such as schizophrenia involves disrupted communication between the prefrontal cortex (PFC) and the mediodorsal tha…
sciencedirect.com
Canada is the only G7 country that hasn't even gotten our emissions below 1990 levels. We've never met a single emissions target. We've never even come close. Carney's not "finding a new way" to where we need to be, he's made it impossible to get there. 17/ www.nationalobserver.com/2026/05/20/a...
New preprint from the lab. @markgergues.bsky.social and crew show that the PVT gates ventral hippocampal salience coding, shifting output between threat- and reward-weighted representations during associative learning and anxiety-related behavior. www.biorxiv.org/content/10.6...
biorxiv.org
Why are we repeating the same mistakes with hantavirus that we made with COVID-19? Luckily, our inadequate response this time hasn’t caused mass casualties, by @furnesscolin.bsky.social www.thestar.com/opinion/cont... via @thestar.com
Why are we repeating the same mistakes with hantavirus that we made with COVID-19?
Physicians in public health often repeat mistakes that, ironically, might’ve seemed obvious to non-experts.
thestar.com
1/ This latest revelation is further evidence that the MOU between Prime Minister Carney and Premier Smith is a gift to the fossil fuel industry. www.theglobeandmail.com/politics/art...
Ottawa-Alberta pipeline deal includes cancellation fee critics say is too low
Clauses are partly meant to give companies a guarantee that a future government won’t rip up the policy
theglobeandmail.com
discussion will include "potential interventions (e.g., moving to one competition per year, restricting applications, capping resubmissions)." don't miss this
Andrew Pruszynski@andpru.bsky.social · 2mo agoI encourage everyone to show up and make your voice heard at upcoming town halls and via any other channels: cihr-irsc.gc.ca/e/45096.html • Bilingual session: Thursday, May 28 at 1:00 p.m. ET • English session: Wednesday, June 24 at 1:30 p.m. ET • French session: Thursday, June 25 at 1:30 p.m. ET
A first for me today. Glad to have this piece in The Guardian. Figured it was time more of our international friends heard some hard truths about how things are going here in 🇨🇦: www.theguardian.com/commentisfre...
Canadian prime minster Mark Carney is not the climate guy you thought | Seth Klein
While Canada may be clinging to fossil fuels, much of the world is moving on
theguardian.com