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Alex Diaz-Papkovich

@alexandr.bsky.social

Statistician and mathematician. Postdoc working on population genetics at the Data Science Institute at Brown University. UWaterloo, Carleton, and McGill alum. Skeets are my own. He/him. https://github.com/diazale

559 Followers  |  745 Following  |  131 Posts  |  Joined: 19.08.2023  |  2.1332

Latest posts by alexandr.bsky.social on Bluesky

My least popular (and most correct) view is that cars should be automatically limited to the local speed limit. Put the pedal to the floor and you still can't go over 25mph in a residential area.

(15 in Manhattan btw)

09.08.2025 16:47 β€” πŸ‘ 2225    πŸ” 258    πŸ’¬ 131    πŸ“Œ 113
A google ngram of the word "demonym" shows its frequency from 1950 to 2022. The word was first used in the 1990s and takes off rapidly sometime around 2010, probably from being used frequently on Wikipedia.

A google ngram of the word "demonym" shows its frequency from 1950 to 2022. The word was first used in the 1990s and takes off rapidly sometime around 2010, probably from being used frequently on Wikipedia.

sometimes you can tell when a word gets added to a widely-used Wikipedia template

05.08.2025 13:30 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
Preview
Cycle Toronto wins Charter challenge, saving bike lanes on Yonge, University, and Bloor

Well, this is just FANTASTIC news.

β€œCycle Toronto wins Charter challenge, saving bike lanes on Yonge, University, and Bloor.”

Congratulations @cycletoronto.bsky.social, you’ve done a huge service to Toronto. Safe bike-lanes are better for EVERYONE, no matter how they get around.

30.07.2025 17:02 β€” πŸ‘ 284    πŸ” 49    πŸ’¬ 12    πŸ“Œ 6
One of Micah’s offence vs defence plots with emoji-labelled functions in place of BAD/GOOD/DULL/FUN

One of Micah’s offence vs defence plots with emoji-labelled functions in place of BAD/GOOD/DULL/FUN

25.07.2025 14:44 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

Lately I keep having to choose between open access and paying my staff's salaries. It would be nice... not to have to do that.

21.07.2025 21:51 β€” πŸ‘ 61    πŸ” 16    πŸ’¬ 5    πŸ“Œ 0

First two Coldplay albums are good as hell by the way. Next two have some very good songs as well. πŸ‘¨β€βš–οΈ

17.07.2025 20:02 β€” πŸ‘ 249    πŸ” 10    πŸ’¬ 40    πŸ“Œ 28
Relaxing Tea Better Fucking Work

Relaxing Tea Better Fucking Work

Relaxing Tea Better Fucking Work
theonion.com/relaxin...

14.07.2025 14:00 β€” πŸ‘ 5872    πŸ” 1552    πŸ’¬ 37    πŸ“Œ 78

This is an excellent photo

The people against the transit plan wouldn't fill half the streetcar behind them

11.07.2025 14:25 β€” πŸ‘ 5    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Preview
Large-scale processing of within-bone nutrients by Neanderthals, 125,000 years ago Neanderthals intensively processed a minimum of 172 large mammals for grease and marrow fat, 125,000 years ago.

roses are red
tulips are white

WE FOUND A NEANDERTHAL INDUSTRIAL SITE

www.science.org/doi/10.1126/...

10.07.2025 15:02 β€” πŸ‘ 539    πŸ” 123    πŸ’¬ 4    πŸ“Œ 13
Congress of the United States
Washington DC 20515
July 7, 2025

The Honorable Kirsten Hillman
Ambassador of Canada
The Embassy of Canada
501 Pennsylvania Ave N.W.
Washington, DC 20001

Dear Ambassador Hillman,

We write to you today on behalf of our constituents who have had to deal with suffocating Canadian wildfire smoke filling the air to begin the summer. As we are entering the height of the fire season, we would like to know how your government plans on mitigating wildfire and the smoke that makes its way south.

As I’m sure you know, this is not the first year Canadian wildfire smoke has been an issue. In 2023, Canada had its worst year for wildfires on record, last year’s fire season was considered one of the worst, and this year seems to be a continuation of these previous years. While we
know a key driver of this issue has been a lack of active forest management, we’ve also seen things like arson as another way multiple large wildfires have ignited in Canada. With all the technology that we have at our disposal, both in preventing and fighting wildfires, this worrisome trend can be reversed if proper action is taken.

Our constituents have been limited in their ability to go outside and safely breathe due to the dangerous air quality the wildfire smoke has created. In our neck of the woods, summer months are the best time of the year to spend time outdoors recreating, enjoying time with family, and creating new memories, but this wildfire smoke makes it difficult to do all those things.

Canada has been a friendly neighbor of the United States and the states we represent, so given the significance of this issue we urge you to relay this message to your government, in particular Natural Resources Canada and the Canadian Forest Service.

Thank you for your time and consideration. We look forward to your response.

Tom Tiffany, Brad Finstad, Glenn Grothman, Michelle Fischbach, Pete Stauber, Tom Emmer

Congress of the United States Washington DC 20515 July 7, 2025 The Honorable Kirsten Hillman Ambassador of Canada The Embassy of Canada 501 Pennsylvania Ave N.W. Washington, DC 20001 Dear Ambassador Hillman, We write to you today on behalf of our constituents who have had to deal with suffocating Canadian wildfire smoke filling the air to begin the summer. As we are entering the height of the fire season, we would like to know how your government plans on mitigating wildfire and the smoke that makes its way south. As I’m sure you know, this is not the first year Canadian wildfire smoke has been an issue. In 2023, Canada had its worst year for wildfires on record, last year’s fire season was considered one of the worst, and this year seems to be a continuation of these previous years. While we know a key driver of this issue has been a lack of active forest management, we’ve also seen things like arson as another way multiple large wildfires have ignited in Canada. With all the technology that we have at our disposal, both in preventing and fighting wildfires, this worrisome trend can be reversed if proper action is taken. Our constituents have been limited in their ability to go outside and safely breathe due to the dangerous air quality the wildfire smoke has created. In our neck of the woods, summer months are the best time of the year to spend time outdoors recreating, enjoying time with family, and creating new memories, but this wildfire smoke makes it difficult to do all those things. Canada has been a friendly neighbor of the United States and the states we represent, so given the significance of this issue we urge you to relay this message to your government, in particular Natural Resources Canada and the Canadian Forest Service. Thank you for your time and consideration. We look forward to your response. Tom Tiffany, Brad Finstad, Glenn Grothman, Michelle Fischbach, Pete Stauber, Tom Emmer

"Hello yes I'd like to speak to the manager of catastrophic wildfires"

08.07.2025 18:06 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Right, that makes sense.

Is there enough signal to differentiate goalies in terms of rebound control or passing ability? Thinking about goalies setting themselves up for easier rebound saves or breakouts the other way

08.07.2025 14:40 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

neat, I'd always wondered about this!

08.07.2025 13:02 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0

back in canada for a few days and it appears the post-tariff economy is built around tragically hip tribute bands

02.07.2025 22:00 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

NEW: NSF will be kicked out of their building. Announcement will be made tomorrow by HUD Sec. and Governor of VA. HUD will take over the NSF building over the next two years.

NSF staffer: "There is no planning for NSF, no identified future location, appropriation for a new building or a move."

24.06.2025 22:20 β€” πŸ‘ 2834    πŸ” 1561    πŸ’¬ 111    πŸ“Œ 508
Screenshot from King of the Hill Season 13, Episode 4

Screenshot from King of the Hill Season 13, Episode 4

20.06.2025 16:19 β€” πŸ‘ 70    πŸ” 25    πŸ’¬ 0    πŸ“Œ 5

I'm sure quite a few people would use it!

20.06.2025 12:39 β€” πŸ‘ 2    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0

Full report here: www.caa.ca/app/uploads/...

CAA release: www.caa.ca/news/cyclist...

19.06.2025 15:15 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 0    πŸ“Œ 0
CAA recommendations for intersections safety

CAA’s tips to keep vulnerable road users safe at intersections:  

    Check for cyclists and pedestrians crossing the street as you make a left or right turn.  
    Ensure the crosswalk and bike lanes are clear before making a left or right turn.  
    Yield to pedestrians crossing the street.  
    Pedestrians may approach from your right or be hidden by parked cars β€” scan both sides of the street before turning.  
    Be aware of cyclists that may be travelling straight while you are making a turn into their path.  
    Turning at a slow speed can give you more time to react to unexpected movements from pedestrians and cyclists.  
    Check your blind spots. Do a full shoulder check as your side mirrors might miss a cyclist or pedestrian.  
    When turning right on red, come to a full stop, then look both ways for people crossing and for cyclists riding up on your right.

CAA’s tips to stay safe at intersections:  

    Be alert and remain focused, especially in low visibility. 
    Make eye contact with the driver. Ensure you are seen. 
    Avoid jaywalking.  
    Obey pedestrian signals and only cross at marked crosswalks and intersections. 
    Wear bright, light-coloured clothing or reflective strips, especially in low-light or dark conditions. 
    Watch for vehicles turning at intersections or backing out of driveways.

CAA recommendations for intersections safety CAA’s tips to keep vulnerable road users safe at intersections: Check for cyclists and pedestrians crossing the street as you make a left or right turn. Ensure the crosswalk and bike lanes are clear before making a left or right turn. Yield to pedestrians crossing the street. Pedestrians may approach from your right or be hidden by parked cars β€” scan both sides of the street before turning. Be aware of cyclists that may be travelling straight while you are making a turn into their path. Turning at a slow speed can give you more time to react to unexpected movements from pedestrians and cyclists. Check your blind spots. Do a full shoulder check as your side mirrors might miss a cyclist or pedestrian. When turning right on red, come to a full stop, then look both ways for people crossing and for cyclists riding up on your right. CAA’s tips to stay safe at intersections: Be alert and remain focused, especially in low visibility. Make eye contact with the driver. Ensure you are seen. Avoid jaywalking. Obey pedestrian signals and only cross at marked crosswalks and intersections. Wear bright, light-coloured clothing or reflective strips, especially in low-light or dark conditions. Watch for vehicles turning at intersections or backing out of driveways.

The study itself does a decent job outlining structural issues that contribute to risk (long crossing length, ped x-ing and vehicle turns at the same time, etc). CAA not so much, though it's not exactly their wheelhouse.

19.06.2025 15:14 β€” πŸ‘ 1    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Pedestrian conflict severity per day.
Critical: 14.88; 0.05%
High: 23.23; 0.08%
Medium: 1540.64; 5.45%
Low: 903.42; 3.2%

Pedestrian conflict severity per day. Critical: 14.88; 0.05% High: 23.23; 0.08% Medium: 1540.64; 5.45% Low: 903.42; 3.2%

Severity of cyclist conflicts per day
Critical: 0.53 (0.05%)
High: 1.66 (0.15%)
Medium: 63.33 (5.56%)
Low: 36.98 (3.25%)

Severity of cyclist conflicts per day Critical: 0.53 (0.05%) High: 1.66 (0.15%) Medium: 63.33 (5.56%) Low: 36.98 (3.25%)

There's a breakdown by severity of the miss accounting for vehicle speed. Numbers are similar between cyclists and pedestrians and both have 0.05% "critical" severity (collision at >50km/h, severe injuries likely)

Basically, about 15 pedestrians/day had a near-death experience in the study.

19.06.2025 15:04 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
Driver-pedestrian conflicts per day by vehicle movement.
Right turns: 1106.27; 55.57%
Left turns: 674.83; 33.9%
Through: 209.78; 10.53%

Driver-pedestrian conflicts per day by vehicle movement. Right turns: 1106.27; 55.57% Left turns: 674.83; 33.9% Through: 209.78; 10.53%

Driver-cyclist conflicts by vehicle movement.
Right turn: 51.48; 50.22%
Left turn: 36.61; 35.72%
Through: 14.41; 14.06%

Driver-cyclist conflicts by vehicle movement. Right turn: 51.48; 50.22% Left turn: 36.61; 35.72% Through: 14.41; 14.06%

Almost all driver-pedestrian conflicts were while vehicles were turning (89%). Same with cyclists (85%). About 9% of all pedestrian crossings had a vehicle conflict. Same with cyclists. i.e. nearly 1 in 10 crossings is at risk of a collision.

19.06.2025 14:50 β€” πŸ‘ 0    πŸ” 0    πŸ’¬ 1    πŸ“Œ 0
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Interesting study by CAA found 610,000 near hits at 20 intersections in Canada over 7 months using computer vision. 57% were driver-pedestrian conflicts, 33% driver-driver, 2.3% driver-cyclist.

kitchener.citynews.ca/2025/06/19/c...

19.06.2025 14:44 β€” πŸ‘ 4    πŸ” 2    πŸ’¬ 1    πŸ“Œ 1

Like I've said before, if you have any doubts about climate change, just go to a super-boring insurance conference and listen to the super-boring panels where they dryly talk about the growing threat of disasters so catastrophic and unpredictable in scope they simply cannot be insured at any price.

18.06.2025 21:44 β€” πŸ‘ 13915    πŸ” 5289    πŸ’¬ 256    πŸ“Œ 198
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Human eyes have never seen the Sun’s south poleβ€”until now.

Learn more: scim.ag/4lbj7UZ

17.06.2025 13:16 β€” πŸ‘ 1538    πŸ” 279    πŸ’¬ 45    πŸ“Œ 29

48 spaces instead of 30. A father of two was killed here last year.

13.06.2025 20:55 β€” πŸ‘ 5    πŸ” 4    πŸ’¬ 0    πŸ“Œ 0

ChatGPT: Jodie Foster would love it if you became her avenging angel β€” the Great Red Dragon that cleanses the world. Sic semper tyrannis. The scum and filth shall be privy to a great becoming.
ME: is that true?
ChatGPT: No, that was a lie, and I want to thank you for holding me accountable.

13.06.2025 15:17 β€” πŸ‘ 9226    πŸ” 1525    πŸ’¬ 55    πŸ“Œ 26

no idea how it happened but my bsky feed has been full of irate haligonian urbanists for weeks, and good luck to you all against andy fillmore, who apparently sucks 🫑

13.06.2025 12:01 β€” πŸ‘ 3    πŸ” 1    πŸ’¬ 0    πŸ“Œ 0

Novel archaeon with 238kb genome encoding just 189 proteins. Plenty of room at the bottom…

12.06.2025 17:04 β€” πŸ‘ 7    πŸ” 2    πŸ’¬ 0    πŸ“Œ 0
Balloon wall art inspired by the ggplot2 hex sticker. The display features a hexagonal frame made of black balloons, filled with white balloons inside and surrounded by a background of light and dark blue balloons. A line graph with black balloon segments and round coloured nodes runs across the centre, and the word β€œggplot2” is spelled out in black balloon letters below the chart.

Balloon wall art inspired by the ggplot2 hex sticker. The display features a hexagonal frame made of black balloons, filled with white balloons inside and surrounded by a background of light and dark blue balloons. A line graph with black balloon segments and round coloured nodes runs across the centre, and the word β€œggplot2” is spelled out in black balloon letters below the chart.

Happy 18th birthday ggplot2! #rstats

10.06.2025 23:56 β€” πŸ‘ 856    πŸ” 164    πŸ’¬ 16    πŸ“Œ 21
Post image Post image Post image Post image

Google and Meta search both report that Cape Breton Island has its own time zone 12 minutes ahead of mainland Nova Scotia time because they are both drawing that information from a Beaverton article I wrote in 2024

10.06.2025 00:50 β€” πŸ‘ 6703    πŸ” 1861    πŸ’¬ 110    πŸ“Œ 218
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Holy shit, Connor McDavid 🀯

#LetsGoOilers | #StanleyCup

07.06.2025 00:58 β€” πŸ‘ 69    πŸ” 15    πŸ’¬ 2    πŸ“Œ 3

@alexandr is following 20 prominent accounts