NavinF

18.4K posts

NavinF

NavinF

@NavinFS

https://t.co/UQk7WEe3k3 Python/C++/Java

San Jose 가입일 Mayıs 2014
1.2K 팔로잉559 팔로워
NavinF
NavinF@NavinFS·
@BrookeHodgman @amolitor99 @shlevy We're talking about OGTT results. Glucose vs time. That's what the paper is about. If your sensor integrates over a window you'd use that window, not the trapezoidal rule
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Shea Levy
Shea Levy@shlevy·
In 1994 a nutrition researcher discovered the essential ingredients of integral calculus. By the available info this was independent of Newton etc. This routinely gets mocked and held up as an example of mathematical incompetence in the life sciences! care.diabetesjournals.org/content/17/2/1…
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NavinF
NavinF@NavinFS·
@Sirius420Nova @andyfang You realize this is a US company right? There is no expectation of privacy in public here. You can record anyone and own the copyright to your footage.
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Sirius
Sirius@Sirius420Nova·
@andyfang So you’re gonna start telling Dashers to start recording inside of a store with people who don’t want to be recorded? Yeah, this isn’t going to end poorly at all.
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Andy Fang
Andy Fang@andyfang·
Introducing Dasher Tasks Dashers can now get paid to do general tasks. We think this will be huge for building the frontier of physical intelligence. Look forward to seeing where this goes!
Andy Fang tweet media
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Tom Sasse
Tom Sasse@tom_sasse·
Our assessment of who is most vulnerable to the Iran energy shock:
Tom Sasse tweet media
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Anthony DiGiorgio, DO, MHA
I once had a brain trauma patient transferred into our ER from an outside facility. It was a small brain bleed, but even a small bleed can be life threatening if it grows. Repeat CTs are essential to ensure it’s not growing. The patient didn’t arrive with imaging from the transferring hospital. They simply neglected to send them. We called and asked them to upload the images to an online portal (HIPAA compliant, widely used). They refused. We asked them if they could put the images on to a CD or flash drive and send it over. They refused. The only way they would release the images is if our hospital sent a courier with a records release form to their hospital to pick up a CD. The amount of time that would take made the images meaningless. So we just repeated the CT to get a new baseline. Stuff like this happens every day.
U.S. DOGE Service@USDS

You go to different doctor’s offices and fill out the same forms over and over again when you could scan a QR code and have your information transferred instantly. We live in the 21st century. Healthcare shouldn’t feel like Groundhog Day.

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GAN✨
GAN✨@theganfam·
@wirelyss third-party clients died for a reason telemetry and spam would break it again
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Wirelyss 👁️‍🗨️💫
The best thing x could do rn is allow third party clients again. It allows other intelligent cracked teams to make the X experience better and more curated, then x can learn from it and make the base app better over time (or acquire the best one lol)
Wirelyss 👁️‍🗨️💫 tweet media
Elon Musk@elonmusk

@diana_dukic What needs to be better?

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Tobin Stone 🌐
Tobin Stone 🌐@tobinjstone·
no one wants to hear this, but the best way to address the dual problems of high ticket prices and overcrowding at ski resorts would just be to make it easier to open up new ski resorts across America
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Eric Feigl-Ding
Eric Feigl-Ding@DrEricDing·
FUN FACT—helium cools the superconducting magnets in more than 14,000 MRI machines used in hospitals worldwide. We lost the largest helium extraction plant in the world in Qatar. US reserves running low. Helium cannot be produced de novo. Any helium escape is permanent.
Shanaka Anslem Perera ⚡@shanaka86

Helium is the only element that escapes Earth’s atmosphere permanently. Once released, it rises through the troposphere, passes the stratosphere, and leaves the planet. It cannot be manufactured. It cannot be synthesised at industrial scale. It accumulates over billions of years in the same geological reservoirs as natural gas. And one third of the world’s supply just went offline because Iran hit the facility that extracts it. Qatar produced roughly 63 million cubic metres of helium in 2025, accounting for 30 to 36 percent of global supply from a total of approximately 190 million cubic metres. QatarEnergy’s three large helium purification plants at Ras Laffan form the world’s biggest helium production base. When LNG production stopped after Iranian drone strikes on March 2 and the subsequent missile damage on March 19, helium extraction stopped automatically because helium is recovered during natural gas liquefaction. You cannot produce helium without producing LNG. The byproduct dies with the primary product. Spot helium prices have roughly doubled since the crisis began. Industry consultants warn that prolonged disruption could push contract prices toward $2,000 per thousand cubic feet. A major industrial gas supplier has already begun assessing customers a helium surcharge. Phil Kornbluth, the most cited helium market consultant, stated the assessment directly: the world cannot compensate for the loss of a third of its helium supply. South Korea imports 64.7 percent of its helium from Qatar. SK Hynix and Samsung operate high-volume fabs producing the DRAM and high-bandwidth memory that power every AI accelerator, every data centre GPU, and every cloud computing cluster on Earth. Helium cools silicon wafers during fabrication. It serves as a carrier gas in deposition and etching tools. It enables leak detection in vacuum systems. Modern extreme ultraviolet lithography requires helium-cooled environments for precise temperature control. Without helium, the fabrication process degrades or stops. SK Hynix and Samsung hold two to three months of helium inventory. Two to three months is not a buffer. It is a countdown. If Ras Laffan remains offline beyond that window, South Korean memory production faces rationing. TSMC in Taiwan is somewhat more diversified but still uses Qatar-linked supply chains. The entire AI hardware supply chain, from HBM3E memory stacks to advanced logic chips, sits inside helium-dependent ecosystems. Beyond semiconductors, helium cools the superconducting magnets in more than 14,000 MRI machines operating worldwide. It pressurises rocket fuel tanks and purges propulsion systems in aerospace. CERN’s Large Hadron Collider depends on helium cryogenic systems. There is no substitute for helium in any of these applications at industrial scale. The United States and Qatar together account for more than 70 percent of global production. The US federal helium reserve and private suppliers offer partial relief, but global prices and spot availability are still governed by Qatar’s market share. Japan’s Iwatani has drawn on US reserves. Canada and the Rockies are seeing renewed investor interest. None of this replaces 63 million cubic metres in weeks. The war hit uranium first. Then oil. Then nitrogen. Then water. Then plastic. Then medicine. Then sulfur. Now helium. Eight layers. Each one deeper. Each one closer to the infrastructure that sustains modern civilisation. The chip that processes your data, the magnet that scans your body, and the rocket that launches your satellite all depend on an atom that leaves the planet when you lose it. open.substack.com/pub/shanakaans…

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NavinF
NavinF@NavinFS·
@DrEricDing Helium-free MRI machines already exist. These machines have a small market share because helium is a dirt cheap waste product of the US oil and gas industry
NavinF tweet media
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Robotbeat🗽 ➐
Robotbeat🗽 ➐@Robotbeat·
Fun Fact: The US produces almost half of the global helium. The Qatar thing is a big problem, but pretty much the only country that isn't affected by it is the United States. Also: we can make helium. It's produced by radioactive decay & is concentrated in natural gas reservoirs
Eric Feigl-Ding@DrEricDing

FUN FACT—helium cools the superconducting magnets in more than 14,000 MRI machines used in hospitals worldwide. We lost the largest helium extraction plant in the world in Qatar. US reserves running low. Helium cannot be produced de novo. Any helium escape is permanent.

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No Jumper
No Jumper@nojumper·
The lawyer suing Afroman for allegedly defaming Ohio sheriff's officials who raided his home finished questioning him by asking him if there's "anything that could change your mind about what you're doing to these deputies?"
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NavinF@NavinFS·
@amolitor99 @shlevy Samples are taken at an instant in time, not at the middle/end of an interval. If other studies did it differently, they did it wrong
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amolitor.dolt
amolitor.dolt@amolitor99·
@NavinFS @shlevy tai's paper exists specifically to nail down an end to end specification for producing comparable numbers across studies, and was prepared at the request of colleagues, specifically to do that fin/
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NavinF
NavinF@NavinFS·
@amolitor99 @shlevy LMAO python/scikit didn't invent the trapezoidal rule. The function has a lineage. cumulative_trapezoid() -> cumtrapz() -> trapz() (definite integral) -> MATLAB trapz(). This predates her 1994 paper and if she works with data she would know MATLAB in the 90s. It's also just math
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amolitor.dolt
amolitor.dolt@amolitor99·
@NavinFS @shlevy look, I'm not the one who's proposing that Tai should have used a function from a library that didn't exist until 10 years later, in a language that literally nobody in her profession would have heard of, on a computer that she probably did not possess.
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