Yaneer Bar-Yam
@yaneerbaryam.bsky.social
Complex Systems Physicist | President of
NECSI, co-founder World Health Network (WHN)
Author: Making Things Work (download pdf at https://necsi.edu/making-things-work)
NECSI, co-founder World Health Network (WHN)
Author: Making Things Work (download pdf at https://necsi.edu/making-things-work)
70 per cent of Sydney central business district workers work from home at least some of the time...a significant and enduring shift in commuting patterns and public transport demand
October 24, 2025 at 9:38 PM
70 per cent of Sydney central business district workers work from home at least some of the time...a significant and enduring shift in commuting patterns and public transport demand
US state governors launch alliance to bolster coordination on public health
reuters.com/world/us/col...
reuters.com/world/us/col...
October 16, 2025 at 2:27 AM
US state governors launch alliance to bolster coordination on public health
reuters.com/world/us/col...
reuters.com/world/us/col...
New insight from complexity science: from customer purchases to laws passed, many processes share universal life-paths of growth and decline. Hidden dynamics that cut across systems. 🧪
🔗 www.nature.com/articles/s41...
🔗 www.nature.com/articles/s41...
October 1, 2025 at 6:49 PM
New insight from complexity science: from customer purchases to laws passed, many processes share universal life-paths of growth and decline. Hidden dynamics that cut across systems. 🧪
🔗 www.nature.com/articles/s41...
🔗 www.nature.com/articles/s41...
September 24, 2025 at 9:46 PM
ondering how this year’s measles outbreaks compare to previous years? This chart shows that 2025 (dark purple) is already about 4x higher than this time last year (light purple), which was itself a sharp increase over 2023. The trend is alarming. Prevention—including vaccination—is critical.
March 12, 2025 at 6:29 PM
ondering how this year’s measles outbreaks compare to previous years? This chart shows that 2025 (dark purple) is already about 4x higher than this time last year (light purple), which was itself a sharp increase over 2023. The trend is alarming. Prevention—including vaccination—is critical.
3/ Biosecurity measures for domestic flocks and mammals:
1) Restrict human contact
2) Keep domestic birds away from wild birds food. water and droppings
3) Wear gloves, masks, and other PPE
4) Pasteurize milk
1) Restrict human contact
2) Keep domestic birds away from wild birds food. water and droppings
3) Wear gloves, masks, and other PPE
4) Pasteurize milk
December 29, 2024 at 9:19 PM
3/ Biosecurity measures for domestic flocks and mammals:
1) Restrict human contact
2) Keep domestic birds away from wild birds food. water and droppings
3) Wear gloves, masks, and other PPE
4) Pasteurize milk
1) Restrict human contact
2) Keep domestic birds away from wild birds food. water and droppings
3) Wear gloves, masks, and other PPE
4) Pasteurize milk
2/ Vermont
Bird flu outbreak confirmed in a backyard flock of birds in Vermont last week.
Bird flu outbreak confirmed in a backyard flock of birds in Vermont last week.
December 29, 2024 at 9:18 PM
2/ Vermont
Bird flu outbreak confirmed in a backyard flock of birds in Vermont last week.
Bird flu outbreak confirmed in a backyard flock of birds in Vermont last week.
More UK hospitals reinstate face mask rules to curb Covid, flu and RSV cases
Including some in Leicester, Lincolnshire, and Yorkshire
www.msn.com/en-gb/health...
Including some in Leicester, Lincolnshire, and Yorkshire
www.msn.com/en-gb/health...
December 28, 2024 at 3:20 PM
More UK hospitals reinstate face mask rules to curb Covid, flu and RSV cases
Including some in Leicester, Lincolnshire, and Yorkshire
www.msn.com/en-gb/health...
Including some in Leicester, Lincolnshire, and Yorkshire
www.msn.com/en-gb/health...
December 27, 2024 at 10:31 PM
Just 4 days to go!
Join us this New Year's Eve, December 31, 2024, to ring in 2025! This is the WHN's biggest celebration of the year, and in addition to games, music, and party activities, thre are fascinating presentations and breakout discussions.
Register: necsi-edu.zoom.us/meeting/regi...
Join us this New Year's Eve, December 31, 2024, to ring in 2025! This is the WHN's biggest celebration of the year, and in addition to games, music, and party activities, thre are fascinating presentations and breakout discussions.
Register: necsi-edu.zoom.us/meeting/regi...
December 27, 2024 at 10:05 PM
Just 4 days to go!
Join us this New Year's Eve, December 31, 2024, to ring in 2025! This is the WHN's biggest celebration of the year, and in addition to games, music, and party activities, thre are fascinating presentations and breakout discussions.
Register: necsi-edu.zoom.us/meeting/regi...
Join us this New Year's Eve, December 31, 2024, to ring in 2025! This is the WHN's biggest celebration of the year, and in addition to games, music, and party activities, thre are fascinating presentations and breakout discussions.
Register: necsi-edu.zoom.us/meeting/regi...
Affected regions:
December 25, 2024 at 4:05 AM
Affected regions:
Update Masking:
Dana Farber Cancer Institute now requires masking of all patients, visitors, and staff at all locations.
It is essential to protect patients and staff from airborne infections.
Dana Farber Cancer Institute now requires masking of all patients, visitors, and staff at all locations.
It is essential to protect patients and staff from airborne infections.
December 24, 2024 at 6:43 PM
Update Masking:
Dana Farber Cancer Institute now requires masking of all patients, visitors, and staff at all locations.
It is essential to protect patients and staff from airborne infections.
Dana Farber Cancer Institute now requires masking of all patients, visitors, and staff at all locations.
It is essential to protect patients and staff from airborne infections.
Update Masking: Tufts Medicine reinstates mandatory masking for healthcare workers in patient care areas Dec 23, 2024. A vital step to protect patients and staff from airborne infections. Patients & visitors are encouraged to mask too. #MaskUp #PublicHealth
December 22, 2024 at 2:39 AM
Update Masking: Tufts Medicine reinstates mandatory masking for healthcare workers in patient care areas Dec 23, 2024. A vital step to protect patients and staff from airborne infections. Patients & visitors are encouraged to mask too. #MaskUp #PublicHealth
Update #3 today on H5N1: Los Angeles reports cats that are presumptive infected, perhaps from raw meat.
They also just confirmed H5N1 cats infected after drinking raw milk.
They also just confirmed H5N1 cats infected after drinking raw milk.
December 18, 2024 at 10:49 PM
Update #3 today on H5N1: Los Angeles reports cats that are presumptive infected, perhaps from raw meat.
They also just confirmed H5N1 cats infected after drinking raw milk.
They also just confirmed H5N1 cats infected after drinking raw milk.
Decrease in ACT standard test for Reading, English and Math scores during three years of the pandemic since 2020 is about 6%, compared with decreases of about 1.5% for English and Math (none for Reading) in three years until 2020, which were consistent with historical increases and decreases.
December 1, 2024 at 5:18 PM
Decrease in ACT standard test for Reading, English and Math scores during three years of the pandemic since 2020 is about 6%, compared with decreases of about 1.5% for English and Math (none for Reading) in three years until 2020, which were consistent with historical increases and decreases.
Wales hospitals 70% of covid cases are hospital acquired reported Nov 17
November 30, 2024 at 10:28 PM
Wales hospitals 70% of covid cases are hospital acquired reported Nov 17
More information, including about reported conditions of crew and others in second flight second flight.
November 25, 2024 at 11:39 PM
More information, including about reported conditions of crew and others in second flight second flight.
This report should have follow up to share what happened with those with reported conditions and others on these flights.
November 25, 2024 at 11:37 PM
This report should have follow up to share what happened with those with reported conditions and others on these flights.
Sonoma County requiring healthcare staff to wear masks when in patient care areas from Nov. 18 through April 30.
sonomacounty.ca.gov/sonoma-count...
sonomacounty.ca.gov/sonoma-count...
November 13, 2024 at 9:48 PM
Sonoma County requiring healthcare staff to wear masks when in patient care areas from Nov. 18 through April 30.
sonomacounty.ca.gov/sonoma-count...
sonomacounty.ca.gov/sonoma-count...
TODAY IS THE DAY! Join friends from across the world at 2pm ET on Zoom for our virtual New Year’s Eve Celebration.
Join us on Zoom: tinyurl.com/3jm2haps
Join us on Zoom: tinyurl.com/3jm2haps
December 31, 2023 at 4:36 PM
TODAY IS THE DAY! Join friends from across the world at 2pm ET on Zoom for our virtual New Year’s Eve Celebration.
Join us on Zoom: tinyurl.com/3jm2haps
Join us on Zoom: tinyurl.com/3jm2haps
Just 24 hours until our global network will come together for our Virtual
New Year’s Eve Celebration.
Join us at 2pm ET to ring in the 2024 with an afternoon of games, discussion and fun.
Register Today: tinyurl.com/3jm2haps
New Year’s Eve Celebration.
Join us at 2pm ET to ring in the 2024 with an afternoon of games, discussion and fun.
Register Today: tinyurl.com/3jm2haps
December 30, 2023 at 11:03 PM
Just 24 hours until our global network will come together for our Virtual
New Year’s Eve Celebration.
Join us at 2pm ET to ring in the 2024 with an afternoon of games, discussion and fun.
Register Today: tinyurl.com/3jm2haps
New Year’s Eve Celebration.
Join us at 2pm ET to ring in the 2024 with an afternoon of games, discussion and fun.
Register Today: tinyurl.com/3jm2haps
Don't Miss it!
Just 3 days until our Virtual New Year’s Eve Celebration! Join us and friends from across the globe at 2pm ET on December 31st for an afternoon of games, discussion, friendship and much more.
Register Today:
tinyurl.com/3jm2haps
Just 3 days until our Virtual New Year’s Eve Celebration! Join us and friends from across the globe at 2pm ET on December 31st for an afternoon of games, discussion, friendship and much more.
Register Today:
tinyurl.com/3jm2haps
December 28, 2023 at 10:16 PM
Don't Miss it!
Just 3 days until our Virtual New Year’s Eve Celebration! Join us and friends from across the globe at 2pm ET on December 31st for an afternoon of games, discussion, friendship and much more.
Register Today:
tinyurl.com/3jm2haps
Just 3 days until our Virtual New Year’s Eve Celebration! Join us and friends from across the globe at 2pm ET on December 31st for an afternoon of games, discussion, friendship and much more.
Register Today:
tinyurl.com/3jm2haps
Just 5 days left of 2023, and 5 days left until the WHN’s New Year’s Eve Celebration. Join friends from across the globe for an afternoon of games, discussion, fellowship and much more. Register Today:
tinyurl.com/3jm2haps
tinyurl.com/3jm2haps
December 26, 2023 at 10:44 PM
Just 5 days left of 2023, and 5 days left until the WHN’s New Year’s Eve Celebration. Join friends from across the globe for an afternoon of games, discussion, fellowship and much more. Register Today:
tinyurl.com/3jm2haps
tinyurl.com/3jm2haps
The World Health Network wishes everyone a very Merry Christmas.
Join us in 6 days to celebrate the final holiday of 2023, New Year’s Eve. We are hosting a virtual New Years Eve party at 2pm ET on Zoom.
Register Today: tinyurl.com/3jm2haps
Join us in 6 days to celebrate the final holiday of 2023, New Year’s Eve. We are hosting a virtual New Years Eve party at 2pm ET on Zoom.
Register Today: tinyurl.com/3jm2haps
December 25, 2023 at 10:17 PM
The World Health Network wishes everyone a very Merry Christmas.
Join us in 6 days to celebrate the final holiday of 2023, New Year’s Eve. We are hosting a virtual New Years Eve party at 2pm ET on Zoom.
Register Today: tinyurl.com/3jm2haps
Join us in 6 days to celebrate the final holiday of 2023, New Year’s Eve. We are hosting a virtual New Years Eve party at 2pm ET on Zoom.
Register Today: tinyurl.com/3jm2haps
9 days left of 2023, and 9 days left until the WHN New Year’s Eve Celebration. Join us! 2pm ET New Years Eve for games, discussion, fellowship and much more. Register Today: tinyurl.com/3jm2haps
December 22, 2023 at 8:58 PM
9 days left of 2023, and 9 days left until the WHN New Year’s Eve Celebration. Join us! 2pm ET New Years Eve for games, discussion, fellowship and much more. Register Today: tinyurl.com/3jm2haps