Maithe Arruda Carvalho
@arrudacarvalho.bsky.social
Neuroscientist. Associate Professor @ University of Toronto Scarborough.
Reposted by Maithe Arruda Carvalho
Lots of political posturing this morning about whether Canada should have taxpayer subsidized school lunch programs. So let's summarize the peer-reviewed evidence:
Thread [1/8]
Thread [1/8]
November 19, 2025 at 3:04 PM
Lots of political posturing this morning about whether Canada should have taxpayer subsidized school lunch programs. So let's summarize the peer-reviewed evidence:
Thread [1/8]
Thread [1/8]
Reposted by Maithe Arruda Carvalho
Now if we could provide those lunches in cafeterias supplied with clean air, just think what we could achieve!
November 19, 2025 at 3:07 PM
Now if we could provide those lunches in cafeterias supplied with clean air, just think what we could achieve!
Reposted by Maithe Arruda Carvalho
This is what's at stake.
The UCP is not only dodging its responsibility to explain how Bill 9 is in any way proportionate or justifiable in a free and democratic society.
They are putting children at far greater risk of suicide.
The UCP is not only dodging its responsibility to explain how Bill 9 is in any way proportionate or justifiable in a free and democratic society.
They are putting children at far greater risk of suicide.
State-level anti-transgender laws increased incidents of past-year suicide attempts among trans and nonbinary young people by 7–72%
November 19, 2025 at 2:43 AM
This is what's at stake.
The UCP is not only dodging its responsibility to explain how Bill 9 is in any way proportionate or justifiable in a free and democratic society.
They are putting children at far greater risk of suicide.
The UCP is not only dodging its responsibility to explain how Bill 9 is in any way proportionate or justifiable in a free and democratic society.
They are putting children at far greater risk of suicide.
Reposted by Maithe Arruda Carvalho
"Canada receives the award because the new government of Prime Minister Mark Carney has flushed years of climate policies down the drain, and is completely ‘Missing In Action’ at a COP where multilateralism needs to be saved." - Climate Action Network International
November 18, 2025 at 10:43 PM
"Canada receives the award because the new government of Prime Minister Mark Carney has flushed years of climate policies down the drain, and is completely ‘Missing In Action’ at a COP where multilateralism needs to be saved." - Climate Action Network International
Reposted by Maithe Arruda Carvalho
At COP30 Canada just got awarded the fossil of the day — first time since 2014 (the harper years). Clear sign of how Carney’s pro fossil fuel agenda and backsliding on climate policy is being noticed internationally.
November 18, 2025 at 10:37 PM
At COP30 Canada just got awarded the fossil of the day — first time since 2014 (the harper years). Clear sign of how Carney’s pro fossil fuel agenda and backsliding on climate policy is being noticed internationally.
Reposted by Maithe Arruda Carvalho
Nicely summarizes how the Carney government’s thoughtless, reckless AI strategy will reduce government capacity while making government more dependent on foreign tech firms.
As with a lot of things with this government, it comes down to a refusal to think about long-term governance issues.
As with a lot of things with this government, it comes down to a refusal to think about long-term governance issues.
Federal budget 2025: Is Canada Strong actually weak on AI?
Federal budget 2025: Is Canada Strong actually weak on AI?
Promoting AI as an economic driver within an unregulated environment risks disrupting key sectors and services that sustain Canadian democracy.
theconversation.com
November 17, 2025 at 11:06 PM
Nicely summarizes how the Carney government’s thoughtless, reckless AI strategy will reduce government capacity while making government more dependent on foreign tech firms.
As with a lot of things with this government, it comes down to a refusal to think about long-term governance issues.
As with a lot of things with this government, it comes down to a refusal to think about long-term governance issues.
Reposted by Maithe Arruda Carvalho
"Are we going to support talent here in Canada and the development of our students and our researchers who are here?'" Whitaker asked…simply injecting a wave of high-profile academics at the top without supporting the foundation beneath them is "going to leave us short-changed." @caut.bsky.social
Canada seeks star academics from abroad, but stable funding for higher education remains a concern | CBC News
Proponents believe a current push to recruit star researchers from abroad will mean top-tier learning for Canadian students and a boost to research innovation and excellence. Yet concerns remain about...
www.cbc.ca
November 14, 2025 at 3:30 PM
"Are we going to support talent here in Canada and the development of our students and our researchers who are here?'" Whitaker asked…simply injecting a wave of high-profile academics at the top without supporting the foundation beneath them is "going to leave us short-changed." @caut.bsky.social
Reposted by Maithe Arruda Carvalho
Scientific program chairs @rcbagot.bsky.social and @markcembrowski.bsky.social have put together a great program: can-acn.org/meeting-2026... - Now is your chance to contribute also!
Program – 2026 Meeting – Canadian Association for Neuroscience
can-acn.org
November 14, 2025 at 11:39 PM
Scientific program chairs @rcbagot.bsky.social and @markcembrowski.bsky.social have put together a great program: can-acn.org/meeting-2026... - Now is your chance to contribute also!
Reposted by Maithe Arruda Carvalho
#eNeuro offers the option of double-blind review, allowing the authors to remain anonymous to the reviewers.
Learn more about the review process at SfN’s gold open-access journal:
https://www.eneuro.org/content/submitting-manuscript#review_process
Learn more about the review process at SfN’s gold open-access journal:
https://www.eneuro.org/content/submitting-manuscript#review_process
November 15, 2025 at 2:25 PM
#eNeuro offers the option of double-blind review, allowing the authors to remain anonymous to the reviewers.
Learn more about the review process at SfN’s gold open-access journal:
https://www.eneuro.org/content/submitting-manuscript#review_process
Learn more about the review process at SfN’s gold open-access journal:
https://www.eneuro.org/content/submitting-manuscript#review_process
Reposted by Maithe Arruda Carvalho
Access to vaccines is not a privilege — it is a human right.
In @statnews.com today, Stefan Peterson and I write about using a human rights-based approach to deal with vaccine denialism and the return of measles, whooping cough and diphtheria
www.statnews.com/2025/11/12/c...
In @statnews.com today, Stefan Peterson and I write about using a human rights-based approach to deal with vaccine denialism and the return of measles, whooping cough and diphtheria
www.statnews.com/2025/11/12/c...
Kids have a right to vaccinations. Let's bring in the lawyers
Children suffering from diseases that should have been consigned to history is a moral failure. Access to vaccines is a human right.
www.statnews.com
November 12, 2025 at 12:15 PM
Access to vaccines is not a privilege — it is a human right.
In @statnews.com today, Stefan Peterson and I write about using a human rights-based approach to deal with vaccine denialism and the return of measles, whooping cough and diphtheria
www.statnews.com/2025/11/12/c...
In @statnews.com today, Stefan Peterson and I write about using a human rights-based approach to deal with vaccine denialism and the return of measles, whooping cough and diphtheria
www.statnews.com/2025/11/12/c...
Reposted by Maithe Arruda Carvalho
Great that top Canadian universities are hiring top scholars (why wouldn't they?) but the Ontario Progressive Conservative government has starved the post-secondary sector and the province has the lowest per-student funding of any Canadian province. www.theglobeandmail.com/canada/educa...
U of T hires three top U.S. scholars, plans for 100 new postdocs
Canadian-born MIT astrophysicist Sara Seagar among those joining the university
www.theglobeandmail.com
November 12, 2025 at 3:54 PM
Great that top Canadian universities are hiring top scholars (why wouldn't they?) but the Ontario Progressive Conservative government has starved the post-secondary sector and the province has the lowest per-student funding of any Canadian province. www.theglobeandmail.com/canada/educa...
Reposted by Maithe Arruda Carvalho
Get your Covid booster. SARS Cov-2 is relying on ignorance and misinformation to continue to infect and injure and kill. Don’t let it.
Want to make a tiny anti-vaxxer head explode and then madly say "big pharma"'or "fake news"? Just the facts. #cdnpoli
November 11, 2025 at 11:44 PM
Get your Covid booster. SARS Cov-2 is relying on ignorance and misinformation to continue to infect and injure and kill. Don’t let it.
Reposted by Maithe Arruda Carvalho
Extended fear learning enhances excitatory and inhibitory synaptic transmission onto amygdala engram cells
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Extended fear learning enhances excitatory and inhibitory synaptic transmission onto amygdala engram cells - Nature Communications
Neural mechanisms underlying long-lasting traumatic memories are not fully understood. Here authors show that only crucial fear engram, induced by intense fear conditioning, will be amplified. Further...
www.nature.com
November 11, 2025 at 4:19 PM
Extended fear learning enhances excitatory and inhibitory synaptic transmission onto amygdala engram cells
www.nature.com/articles/s41...
www.nature.com/articles/s41...
Reposted by Maithe Arruda Carvalho
My latest post:
"Canada’s Measles Setback Is a Symptom of a Larger Illness"
medium.com/@deonandan/c...
"Canada’s Measles Setback Is a Symptom of a Larger Illness"
medium.com/@deonandan/c...
Canada’s Measles Setback Is a Symptom of a Larger Illness
Raywat / blog, epidemiology / 0 comment
medium.com
November 10, 2025 at 8:14 PM
My latest post:
"Canada’s Measles Setback Is a Symptom of a Larger Illness"
medium.com/@deonandan/c...
"Canada’s Measles Setback Is a Symptom of a Larger Illness"
medium.com/@deonandan/c...
Reposted by Maithe Arruda Carvalho
Reposted by Maithe Arruda Carvalho
Incredibly weak statement from Canada at COP30. It says “effective action starts with detailed planning” and points to this week’s climate competitiveness plan as proof of Canada’s efforts. Weird given that plan has no target, no GHG modelling, dismantles policies policies and calls LNG low carbon.
Canada delivers its national statement at COP30 - Canada.ca
Canada delivers its national statement at COP30
www.canada.ca
November 8, 2025 at 2:55 PM
Incredibly weak statement from Canada at COP30. It says “effective action starts with detailed planning” and points to this week’s climate competitiveness plan as proof of Canada’s efforts. Weird given that plan has no target, no GHG modelling, dismantles policies policies and calls LNG low carbon.
Reposted by Maithe Arruda Carvalho
It’s hard not to feel insulted by the Canadian federal budget’s implication that researchers currently working in Canada aren’t good enough, so they’ll spend a bunch of taxpayer money to bring in “top talent” from elsewhere.
November 5, 2025 at 12:33 PM
It’s hard not to feel insulted by the Canadian federal budget’s implication that researchers currently working in Canada aren’t good enough, so they’ll spend a bunch of taxpayer money to bring in “top talent” from elsewhere.
Reposted by Maithe Arruda Carvalho
New issue of Nature - with NINE studies on #brain #development from the BRAIN Initiative Cell Atlas Network (BICAN) 🧠🧪🔬
An amazing set of resources for all scientists working on the brain!
🧠 Immersive feature:
www.nature.com/immersive/d4...
🧠 Perspective:
www.nature.com/articles/s41...
An amazing set of resources for all scientists working on the brain!
🧠 Immersive feature:
www.nature.com/immersive/d4...
🧠 Perspective:
www.nature.com/articles/s41...
November 5, 2025 at 6:53 PM
New issue of Nature - with NINE studies on #brain #development from the BRAIN Initiative Cell Atlas Network (BICAN) 🧠🧪🔬
An amazing set of resources for all scientists working on the brain!
🧠 Immersive feature:
www.nature.com/immersive/d4...
🧠 Perspective:
www.nature.com/articles/s41...
An amazing set of resources for all scientists working on the brain!
🧠 Immersive feature:
www.nature.com/immersive/d4...
🧠 Perspective:
www.nature.com/articles/s41...
Reposted by Maithe Arruda Carvalho
The 🇨🇦 Standing Committee on Science and Research passed a modified resolution this afternoon that the requested ricouncil applicant and reviewer data can be aggregated and anonymized. Thanks to the many researchers who signed letters pointing out legitimate data privacy concerns. 👏👏
November 6, 2025 at 12:22 AM
The 🇨🇦 Standing Committee on Science and Research passed a modified resolution this afternoon that the requested ricouncil applicant and reviewer data can be aggregated and anonymized. Thanks to the many researchers who signed letters pointing out legitimate data privacy concerns. 👏👏
Reposted by Maithe Arruda Carvalho
Study permit exemption for graduate students...
What do you make of this? u15.ca/publications...
Press release - U15 Canada welcomes study permit exemption for international graduate students - U15 Canada
November 5, 2025 (OTTAWA, ON) – U15 Canada welcomes the reintroduction of an exemption for international graduate students from study permit caps, announced
u15.ca
November 6, 2025 at 12:47 AM
Study permit exemption for graduate students...
Reposted by Maithe Arruda Carvalho
This feels like a fundamental realignment in Canadian politics.
The Conservatives are completing their regression, begun in the 2015 “barbaric cultural practices” election, to their Reform Party roots.
The Liberals now resemble not the Mulroney PCs but the Harper Conservatives.
And the NDP is MIA.
The Conservatives are completing their regression, begun in the 2015 “barbaric cultural practices” election, to their Reform Party roots.
The Liberals now resemble not the Mulroney PCs but the Harper Conservatives.
And the NDP is MIA.
1. Despite Pierre Poilievre’s partisan rhetoric, Conservative MPs feel ideologically at home in Mark Carney’s Liberal Party
2. Despite the Liberal Party’s partisan rhetoric, Conservative MPs feel ideologically at home in Mark Carney’s Liberal Party
2. Despite the Liberal Party’s partisan rhetoric, Conservative MPs feel ideologically at home in Mark Carney’s Liberal Party
#Breaking: Nova Scotia MP Chris d'Entremont, who has left the Conservative caucus, will join the Liberals: Source
November 5, 2025 at 12:00 PM
This feels like a fundamental realignment in Canadian politics.
The Conservatives are completing their regression, begun in the 2015 “barbaric cultural practices” election, to their Reform Party roots.
The Liberals now resemble not the Mulroney PCs but the Harper Conservatives.
And the NDP is MIA.
The Conservatives are completing their regression, begun in the 2015 “barbaric cultural practices” election, to their Reform Party roots.
The Liberals now resemble not the Mulroney PCs but the Harper Conservatives.
And the NDP is MIA.
Reposted by Maithe Arruda Carvalho
So Canadian researchers are left fighting over the same ol’ 🍯 but we will attract more international talent w big bucks & no sustainability plan 🤔
#budget2025 3/
#budget2025 3/
November 5, 2025 at 3:29 AM
So Canadian researchers are left fighting over the same ol’ 🍯 but we will attract more international talent w big bucks & no sustainability plan 🤔
#budget2025 3/
#budget2025 3/
Reposted by Maithe Arruda Carvalho
It’s insulting to tell 🇨🇦 scientists we need international scientists to run to our rescue & ensure innovation.
🇨🇦 scientists have exceeded expectations with paltry funding. If the gov funded Tricouncil > & sustainably; imagine how innovative we’d already be!! /End
🇨🇦 scientists have exceeded expectations with paltry funding. If the gov funded Tricouncil > & sustainably; imagine how innovative we’d already be!! /End
November 5, 2025 at 3:58 AM
It’s insulting to tell 🇨🇦 scientists we need international scientists to run to our rescue & ensure innovation.
🇨🇦 scientists have exceeded expectations with paltry funding. If the gov funded Tricouncil > & sustainably; imagine how innovative we’d already be!! /End
🇨🇦 scientists have exceeded expectations with paltry funding. If the gov funded Tricouncil > & sustainably; imagine how innovative we’d already be!! /End
Reposted by Maithe Arruda Carvalho
Increasing support to researchers already in Canada by allocating this $1B to tri-council funding and infrastructure would go a VERY long way.
Research labs provide training and employment, strengthen innovation, and produce findings that can benefit all Canadians.
2/
Research labs provide training and employment, strengthen innovation, and produce findings that can benefit all Canadians.
2/
November 5, 2025 at 1:51 PM
Increasing support to researchers already in Canada by allocating this $1B to tri-council funding and infrastructure would go a VERY long way.
Research labs provide training and employment, strengthen innovation, and produce findings that can benefit all Canadians.
2/
Research labs provide training and employment, strengthen innovation, and produce findings that can benefit all Canadians.
2/
Reposted by Maithe Arruda Carvalho
Two large studies have been commissioned by the
@liberal_party
on how to improve and enhance the Canadian research ecosystem, and it is almost as if they were after thoughts deemed irrelevant.
Instead #budget2025 seems to focus more on provide tax breaks for industry.
3/
@liberal_party
on how to improve and enhance the Canadian research ecosystem, and it is almost as if they were after thoughts deemed irrelevant.
Instead #budget2025 seems to focus more on provide tax breaks for industry.
3/
November 5, 2025 at 1:51 PM
Two large studies have been commissioned by the
@liberal_party
on how to improve and enhance the Canadian research ecosystem, and it is almost as if they were after thoughts deemed irrelevant.
Instead #budget2025 seems to focus more on provide tax breaks for industry.
3/
@liberal_party
on how to improve and enhance the Canadian research ecosystem, and it is almost as if they were after thoughts deemed irrelevant.
Instead #budget2025 seems to focus more on provide tax breaks for industry.
3/