Donald E. Matthieu III
@donaldmatthieu.bsky.social
soil, water, & environmental science; remediation; soil & groundwater pollution dynamics; subsurface hydrology. Personal opinions.
Pinned
Ambient Trichloroethylene Exposure and Parkinson Disease Risk in Medicare Beneficiaries | Neurology
Background and ObjectivesTrichloroethylene (TCE) is an important environmental contaminant in the United States
due to widespread use industrially. Epidemiologic studies suggest that occupational
expo...
www.neurology.org
TCE is still a concern in the USA. "Epidemiologic studies suggest that occupational exposure to TCE and TCE-contaminated drinking water may increase the risk of Parkinson's disease (PD)." TCE has been banned for sale and use in the USA, but other places have not. www.neurology.org/doi/10.1212/...
Reposted by Donald E. Matthieu III
An honor and dream come true to perform alongside Yo-Yo Ma, presented by Celebrity Series at Boston Symphony Hall. 💜
🎼Ave Maria (Bach/Gounod)
🎼Ave Maria (Bach/Gounod)
November 22, 2025 at 6:29 PM
An honor and dream come true to perform alongside Yo-Yo Ma, presented by Celebrity Series at Boston Symphony Hall. 💜
🎼Ave Maria (Bach/Gounod)
🎼Ave Maria (Bach/Gounod)
Reposted by Donald E. Matthieu III
Immunologist Zachary Rubin explains how, according to a recent study, living through a pandemic might accelerate brain aging.
The COVID Pandemic May Have Aged Your Brain—Even If You Never Got Sick
Immunologist Zachary Rubin explains how, according to a recent study, living through a pandemic might accelerate brain aging.
www.scientificamerican.com
November 7, 2025 at 3:39 PM
Immunologist Zachary Rubin explains how, according to a recent study, living through a pandemic might accelerate brain aging.
Reposted by Donald E. Matthieu III
Dang, hard disagree. The best papers to write and read are works of art, not merely a list of data and statements.
Don’t let LLMs take this away too, for gods sake.
Don’t let LLMs take this away too, for gods sake.
I honestly think we would all be a lot more productive if papers were bullet points with plots.
November 14, 2025 at 10:22 PM
Dang, hard disagree. The best papers to write and read are works of art, not merely a list of data and statements.
Don’t let LLMs take this away too, for gods sake.
Don’t let LLMs take this away too, for gods sake.
Reposted by Donald E. Matthieu III
Use of trichloroethylene for making separators in lithium-ion batteries will be phased out within 5 years under a new US regulation. cen.acs.org/policy/chemi...
EPA bans 2 common chlorinated solvents
Trichloroethylene and perchloroethylene phase-out plan includes exemptions for some critical applications
cen.acs.org
December 13, 2024 at 2:21 PM
Use of trichloroethylene for making separators in lithium-ion batteries will be phased out within 5 years under a new US regulation. cen.acs.org/policy/chemi...
Reposted by Donald E. Matthieu III
Trichloroethylene Toxic Substances Control Act Rule: 124 Environmental Organizations Transmit Letter to U.S. Environmental Protection Agency Seeking Reinstatement
Trichloroethylene Toxic Substances Control Act Rule: 124 Environmental Organizations Transmit Letter to U.S. Environmental Protection Agency Seeking Reinstatement
124 community, environmental, public health, and other organizations jointly transmitted a March 2025 letter to the United States Environmental...
www.jdsupra.com
April 3, 2025 at 2:05 PM
Trichloroethylene Toxic Substances Control Act Rule: 124 Environmental Organizations Transmit Letter to U.S. Environmental Protection Agency Seeking Reinstatement
Are the optics bad here? Should judge have ordered jury 2 only consume soup for lunch & no sandwich? "The jury, which feasted on sandwiches for lunch Thursday, according 2 a person familiar with jury lunches, deliberated the charges 4 several hours Wednesday & Thursday before delivering the verdict"
BREAKING: JUSTICE DEPARTMENT EATS A LOSS IN 'SANDWICH GUY' CASE AS JURORS FIND DEFENDANT NOT GUILTY www.nbcnews.com/politics/jus...
Jury acquits D.C. 'sandwich guy' charged with chucking a sub at a federal agent
Sean Dunn faced single misdemeanor offense after federal grand jurors refused to indict him on the felony charge sought by prosecutors.
www.nbcnews.com
November 7, 2025 at 9:38 PM
Are the optics bad here? Should judge have ordered jury 2 only consume soup for lunch & no sandwich? "The jury, which feasted on sandwiches for lunch Thursday, according 2 a person familiar with jury lunches, deliberated the charges 4 several hours Wednesday & Thursday before delivering the verdict"
Well, the verdict has been rendered. The jury decided that the prosecutors threw them a bologna sandwich of charges and declined to find the defendant guilty of alleged footlong felonies. There was no meat in the prosecutors' sandwich accusations. It was only a tomato sandwich.
BREAKING: JUSTICE DEPARTMENT EATS A LOSS IN 'SANDWICH GUY' CASE AS JURORS FIND DEFENDANT NOT GUILTY www.nbcnews.com/politics/jus...
Jury acquits D.C. 'sandwich guy' charged with chucking a sub at a federal agent
Sean Dunn faced single misdemeanor offense after federal grand jurors refused to indict him on the felony charge sought by prosecutors.
www.nbcnews.com
November 7, 2025 at 7:04 PM
Well, the verdict has been rendered. The jury decided that the prosecutors threw them a bologna sandwich of charges and declined to find the defendant guilty of alleged footlong felonies. There was no meat in the prosecutors' sandwich accusations. It was only a tomato sandwich.
Article Quote: "The jury — which feasted on sandwiches for lunch Thursday, according to a person familiar with jury lunches—deliberated the charges for several hours Wednesday and Thursday before delivering the verdict." May I suggest a conspiracy theory that these sandwiches corrupted the jury? lol
BREAKING: JUSTICE DEPARTMENT EATS A LOSS IN 'SANDWICH GUY' CASE AS JURORS FIND DEFENDANT NOT GUILTY www.nbcnews.com/politics/jus...
Jury acquits D.C. 'sandwich guy' charged with chucking a sub at a federal agent
Sean Dunn faced single misdemeanor offense after federal grand jurors refused to indict him on the felony charge sought by prosecutors.
www.nbcnews.com
November 7, 2025 at 6:59 PM
Article Quote: "The jury — which feasted on sandwiches for lunch Thursday, according to a person familiar with jury lunches—deliberated the charges for several hours Wednesday and Thursday before delivering the verdict." May I suggest a conspiracy theory that these sandwiches corrupted the jury? lol
Reposted by Donald E. Matthieu III
If the sandwich don’t split, you must acquit
Defense says that the officer's testimony was "very questionable" because he said the sandwich both exploded in spray of mustard and onions and also landed in its wrapper on the ground.
November 5, 2025 at 8:29 PM
If the sandwich don’t split, you must acquit
Ladies & gentlemen of the jury: don't let the fact that the sandwich had turkey on it distract you from the fact that beef, or the having of beef, is the core issue in this case. The sandwich thrower might have had beef but really the officer did not. In the absence of beef the charges cannot stand
Defense says that the officer's testimony was "very questionable" because he said the sandwich both exploded in spray of mustard and onions and also landed in its wrapper on the ground.
November 6, 2025 at 1:20 AM
Ladies & gentlemen of the jury: don't let the fact that the sandwich had turkey on it distract you from the fact that beef, or the having of beef, is the core issue in this case. The sandwich thrower might have had beef but really the officer did not. In the absence of beef the charges cannot stand
TCE is still a concern in the USA. "Epidemiologic studies suggest that occupational exposure to TCE and TCE-contaminated drinking water may increase the risk of Parkinson's disease (PD)." TCE has been banned for sale and use in the USA, but other places have not. www.neurology.org/doi/10.1212/...
Ambient Trichloroethylene Exposure and Parkinson Disease Risk in Medicare Beneficiaries | Neurology
Background and ObjectivesTrichloroethylene (TCE) is an important environmental contaminant in the United States
due to widespread use industrially. Epidemiologic studies suggest that occupational
expo...
www.neurology.org
November 5, 2025 at 6:15 AM
TCE is still a concern in the USA. "Epidemiologic studies suggest that occupational exposure to TCE and TCE-contaminated drinking water may increase the risk of Parkinson's disease (PD)." TCE has been banned for sale and use in the USA, but other places have not. www.neurology.org/doi/10.1212/...
Reposted by Donald E. Matthieu III
Extremely 2025 coded - Firefighters are donating their plasma to reduce the forever chemicals in their blood. "If a firefighter donates plasma six times a year, the PFAS in their blood could be reduced by up to 60%." (The plasma is "cleaned" before being used.) www.yourvalley.net/glendale-ind...
Glendale firefighters donate plasma to change out PFAS - Glendale Independent
Across Arizona and the United States, firefighters are facing a cancer epidemic. One cause of this spike in cancer is the record high amounts of per- and polyfluoroalkyl substances (PFAS), also …
www.yourvalley.net
November 4, 2025 at 7:23 PM
Extremely 2025 coded - Firefighters are donating their plasma to reduce the forever chemicals in their blood. "If a firefighter donates plasma six times a year, the PFAS in their blood could be reduced by up to 60%." (The plasma is "cleaned" before being used.) www.yourvalley.net/glendale-ind...
Reposted by Donald E. Matthieu III
Hydrology Paper of the Day @abhilashsingh.bsky.social suggested by @mlearthsciences.bsky.social on obtaining subsurface soil moisture from surface soil moisture observations: conditional generative modeling in the context of Fickian diffusion, and a reverse diffusion process from a neural network.
Can weak physics improve machine-learning generalization to new (or any) sites compared to hard-constraint physics-informed machine learning that requires site-specific details?
We address this question in our new paper in GRL.
doi.org/10.1029/2025...
#soilmoisture #machinelearning
We address this question in our new paper in GRL.
doi.org/10.1029/2025...
#soilmoisture #machinelearning
October 19, 2025 at 2:13 AM
Hydrology Paper of the Day @abhilashsingh.bsky.social suggested by @mlearthsciences.bsky.social on obtaining subsurface soil moisture from surface soil moisture observations: conditional generative modeling in the context of Fickian diffusion, and a reverse diffusion process from a neural network.
Reposted by Donald E. Matthieu III
@efsa.europa.eu just released a literature review of >1,700 publications reporting #microplastics occurrence in food contact materials. Unfortunately, methodological shortcomings and inadequate reporting prevents reliable exposure estimation.
#LiteratureReview
www.efsa.europa.eu/en/supportin...
#LiteratureReview
www.efsa.europa.eu/en/supportin...
October 22, 2025 at 4:55 PM
@efsa.europa.eu just released a literature review of >1,700 publications reporting #microplastics occurrence in food contact materials. Unfortunately, methodological shortcomings and inadequate reporting prevents reliable exposure estimation.
#LiteratureReview
www.efsa.europa.eu/en/supportin...
#LiteratureReview
www.efsa.europa.eu/en/supportin...
Reposted by Donald E. Matthieu III
Evidence keeps accumulating for the environmental toxin exposure link to Parkinson's disease, beyond pesticides. Today on trichloroethylene (TCE), used in dry cleaning
www.neurology.org/doi/10.1212/...
www.neurology.org/doi/10.1212/...
October 1, 2025 at 10:14 PM
Evidence keeps accumulating for the environmental toxin exposure link to Parkinson's disease, beyond pesticides. Today on trichloroethylene (TCE), used in dry cleaning
www.neurology.org/doi/10.1212/...
www.neurology.org/doi/10.1212/...
Reposted by Donald E. Matthieu III
Please repost:
What are the current costs of kit-based RNA extractions per sample? Qiagen quoted my grad student a "discount" that came to $10/sample. That seemed /way/ too high
What are the current costs of kit-based RNA extractions per sample? Qiagen quoted my grad student a "discount" that came to $10/sample. That seemed /way/ too high
October 22, 2025 at 11:43 PM
Please repost:
What are the current costs of kit-based RNA extractions per sample? Qiagen quoted my grad student a "discount" that came to $10/sample. That seemed /way/ too high
What are the current costs of kit-based RNA extractions per sample? Qiagen quoted my grad student a "discount" that came to $10/sample. That seemed /way/ too high
Reposted by Donald E. Matthieu III
This! 👇! 🧪🔬🔭
I think people adjacent to science (but who now find themselves deciding the fate of US science somehow) undervalue humility, valuing braggadocios hubris instead.
Yes it’s true that some scientific discoveries are complete paradigm changers, and we celebrate these. 1/
Yes it’s true that some scientific discoveries are complete paradigm changers, and we celebrate these. 1/
October 16, 2025 at 4:47 PM
This! 👇! 🧪🔬🔭
Reposted by Donald E. Matthieu III
The war zone in Portland is out of control.
October 18, 2025 at 1:09 AM
The war zone in Portland is out of control.
Reposted by Donald E. Matthieu III
Portland doing as Portland does
The following is REAL footage from Portland, 2025. Viewer discretion is advised.
October 9, 2025 at 10:02 PM
Portland doing as Portland does
Reposted by Donald E. Matthieu III
Please repost -- The Univ. California Davis dept of Plant Pathology is hiring a Fungal biologist / Mycologist
Applications due Dec 1
Application portal: recruit.ucdavis.edu/JPF07339
Screenshot shows part of the job posting (with alt-text of the same text)
Applications due Dec 1
Application portal: recruit.ucdavis.edu/JPF07339
Screenshot shows part of the job posting (with alt-text of the same text)
September 22, 2025 at 6:58 PM
Please repost -- The Univ. California Davis dept of Plant Pathology is hiring a Fungal biologist / Mycologist
Applications due Dec 1
Application portal: recruit.ucdavis.edu/JPF07339
Screenshot shows part of the job posting (with alt-text of the same text)
Applications due Dec 1
Application portal: recruit.ucdavis.edu/JPF07339
Screenshot shows part of the job posting (with alt-text of the same text)
Reposted by Donald E. Matthieu III
"hand-to-hand combat with antifa every night"
October 6, 2025 at 7:45 PM
"hand-to-hand combat with antifa every night"
Reposted by Donald E. Matthieu III
Jesus. You think it can’t get any worse, then you read these stories. US citizens and legal residents illegally arrested and held for days. **Native Americans** getting detained and held for days because ICE agents are too stupid/racist to know about tribal IDs.
October 4, 2025 at 11:26 PM
Jesus. You think it can’t get any worse, then you read these stories. US citizens and legal residents illegally arrested and held for days. **Native Americans** getting detained and held for days because ICE agents are too stupid/racist to know about tribal IDs.