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docbrown

1,355 karma · joined September 12, 2018

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docbrown··on Cemeteries are landfills, and can contain all sorts of pollutants
If there’s a 30 year limit, why are tombstones that are >30yrs still standing in most cases?

One of the oldest cemeteries in my town has dates going as far back as mid-1800s and I don’t think they go through periodically and dig bodies up.

docbrown··on Mexico's Supreme Court rules in favor of allowing recreational marijuana use
Even with the case having to be brought to the SC, I wonder if this is Mexico’s initial step toward attempting to curb the drug cartels. With the states legalizing recreational marihuana, that has already slowed down a lot of the over-the-border smuggling, at least IIRC without digging up articles.

OT: Canada seems to maybe thinking the same thing with legalizing. If we legalize it, we’re erasing the incentive of backpacking through the back channels of the Canada-US border.

docbrown··on When Adolescents Give Up Pot, Their Cognition Quickly Improves
>As I understand it THC aggravates symptoms in people predisposed to psychosis.

This seems to be similar reactions to those who take doses of LSD and other psychedelic drugs.

docbrown··on Teaching C (2016)
Is there any updated texts that you or anyone else would recommend for people new to C?
docbrown··on NY Man Arrested for Cutting Wires to Red Light Cameras (2016)
>How have politics become so corrupt?

Anonymous dark money being funneled into politicians pockets, a complete lack of oversight on many departments and overall complacency from many people who now view the security state as a safety measure for us all.

docbrown··on Overdose deaths have fallen for six months
one of the problems with Fentanyl is how our hands are tied when it comes to inbound shipments. Rogue laboratories in China are a pill-mill for these synthetic drugs.

>Over the last decade, federal officials say, the Zheng group mailed and shipped fentanyl and similar illicit chemicals to customers in more than 25 countries and 35 U.S. states. U.S. officials say the syndicate’s success, laid bare in a recent federal indictment[1], partly helps explain America’s skyrocketing death toll from drug overdoses. [2]

[1]https://www.justice.gov/opa/pr/two-chinese-nationals-charged... [2]http://www.latimes.com/politics/la-na-pol-china-fentanyl-201...

docbrown··on Heavy multitaskers have reduced memory
>Old people might say it's just part of getting old.

This is true to an extent. Motor and cognitive skills may diminish slowly with age but memory impairment diseases like Alzheimer’s and Dementia are /never/ a normal part of aging.

docbrown··on Overdose deaths have fallen for six months
>The problem with this is people easily underestimate the potency and use too much on top of the issue of varying amounts of fentanyl used to cut increasing risk.

this is especially dangerous amongst users who are relapsing and initially using their old dose amounts when starting again and their bodies aren’t able to handle it

docbrown··on Overdose deaths have fallen for six months
Drugs are still getting stronger and deadlier and much cheaper. This is obvious when you look at the a spike in Fentanyl use compared to other narcotics. While the amount needed to get high is lower, the potency is much higher. In addition to this, these packages are getting stepped on—where dealers cut it with another substance—a hundred times over before it ends up in someone’s veins with anything and everything.
docbrown··on Overdose deaths have fallen for six months
>Could this very well just be increased access and availability to Narcan

Without looking up data right now: yes

edit: whoever claimed my comment is inaccurate should look at the stats for Naxolene usage on opioid users (https://www.health.ny.gov/statistics/opioid/data/pdf/nys_jul...). In one (1) county, they administered Naxolene to over 6,000 users. With that information, arguing there is no correlation between the wide spread availability of reversal drugs and the drop in deaths is just.. wrong.

docbrown··on List of 600 free online courses launched by 190 universities
If i’m not mistaken—using MIT’s OWC as an example—these courses are basically carbon copies of lectures they give their students. The instructors are still teaching on the campus to IRL students. The only difference is that these are then put online for easy access a la open source projects.

So, to answer your question, the money spent to produce online (o) lectures is equal to campus (c) lectures—without taking into labor hours to upload and edit. Therefore, O + C = $T.

docbrown··on Calculus Made Easy (1910)
Here is a link from the comments that includes a high-quality PDF of the text instead of page scans:http://www.gutenberg.org/files/33283/33283-pdf.pdf?session_i...
docbrown··on Why Doctors Reject Tools That Make Their Jobs Easier
Within the parent comment and beyond, it seems people are putting emphasis on a change in temperature but do not state a deviation from the average 98.2°. Even if we did have it though, I don’t think having a longitudinal look at someone’s vital signs (VS) would be misleading in any sense. It establishes a baseline history of the person and deviations will be put in context with the addition charting notes from that visit.

While I do agree with a single point not being enough information, nobody is looking at body temperature alone when diagnosing a patient— unless they’re reaching internal temperatures of below 95° and above ~100.9 for hypothermia or hyperthermia respectfully. With each diagnosis there are /x/ number of signs and symptoms that go along with it so it is crucial that we gather as much information on all the VS we can, no matter how minuscule the data may seem.

docbrown··on Engineers develop process to 3-D print cells for human tissue
The study, Microfluidic Flow Cell Array for Controlled Cell Deposition in Engineered Musculoskeletal Tissues , is from the current issue of Journal of Tissue Engineering, Part C: Methods. [0]

[0] https://www.liebertpub.com/doi/10.1089/ten.tec.2018.0184

docbrown··on Astronauts escape malfunctioning Soyuz rocket
The Soyuz T-10-1 launch in 1983, maybe? The escape system launched minutes before the explosion on the launching pad happened.[0]

[0] https://en.wikipedia.org/wiki/Soyuz_7K-ST_No._16L

docbrown··on Hubble Space Telescope Is In Safe Mode After Gyro Failure
IIRC, there were a few different reasons why it was scary.

One of the first was this mission was the last one, it was a difficult repair—SC4 did the first in-orbit repair—to do at the time, especially outside of the telescope. Because when you leave the safety of the shuttle, you’re traveling at a rate of ~17,000MPH and where the hubble orbits, there is a much higher chance of debris floating around than as if they were lower in the atmosphere. So in laymen terms, you’re attached to a cord that is supplying you with O2 and spinning at 17,000 MPH while trying to avoid rocks and other dangerous floating objects.

One other danger was the O2 levels. He said the suits are heavy, all of your tools are attached to you via cords and you have limited time to be outside. If something where to happen in this situation, not only would you become unconscious within seconds from the lack of O2, you’d pretty much be a forever piece of debris floating around the galaxies as your body will never decompose or fall from orbit.

The latter part was one of his biggest worries. He knew that he’s on limited time, he also had to renter the shuttle slow because it’s similar to divers and decompression. If for some reason he went too fast or there was a leak somewhere, his suit would have instantly filled up and the pressure would have blew him apart inside the suit.

docbrown··on Hubble Space Telescope Is In Safe Mode After Gyro Failure
This presentation is from a different college speech and a couple years earlier than when I saw him but he seems to be talking the same general information about SC4. — https://www.youtube.com/watch?v=fZh60_CxxJM
docbrown··on Hubble Space Telescope Is In Safe Mode After Gyro Failure
There have been five (5) successful missions to Hubble—beginning in 1993, then 1997, 1999, 2002, and 2009.[1]

The final mission, STS-125/SM4 (servicing mission 4), was done to prolong the life of the telescope. During the 12-day mission, they installed two (2) new instruments and performed two (2) repairs of failed equipment, and six new batteries in addition to replacing gyroscopes. This expected to extend Hubble’s lifespan by five (5) years from 2009.[2] So we were looking at an expected 2014 EOL date.

The 2009 mission was an interesting event in itself with Hubble’s durability aside. During a talk from Dr. Andrew Fuestel, he mentioned how NASA developed specialized tools for him to repair Hubble mid-orbit—which he said were the scariest times of his life—during his three (3) spacewalks.

[1] https://asd.gsfc.nasa.gov/archive/hubble/missions/sm4.html

[2]http://www.cbsnews.com/network/news/space/home/spacenews/fil...

docbrown··on An artwork by Banksy shredded itself after selling for $1.3M at Sotheby’s
Banksy is not typical, though. As noted in other articles, the auction house stated that the artist gave them the frame as it was an integral part of the artwork.

This has been planned for some time it seems.

docbrown··on An artwork by Banksy shredded itself after selling for $1.3M at Sotheby’s
The frame was part of Banksy’s original idea per the auction house.

>Sotheby's — which had noted before the sale that the work's ornate gilded frame was "an integral element of the artwork chosen by Banksy himself" — expressed surprise at the incident.

[1] https://www.latimes.com/entertainment/arts/la-et-cm-banksy-s...

docbrown··on Apple's Proprietary Software Locks Kill Independent Repair on New MacBook Pros
While it’s not automotive, the farming industry has fallen victim to this at the hands of John Deere. Although, they can still use “authorized” dealers for repairs, there has become a black market for software and repairs. [1]

[1] https://motherboard.vice.com/en_us/article/xykkkd/why-americ...

docbrown··on Deep image reconstruction from human brain activity (2017)
In certain situations, especially ones related to trauma or an altering event, it may be possible to remember it faintly. But there are many factors that may have helped you remember this.

Have you spoke about it at great lengths when older? Is it often brought up about how they took the cast off? If so, you’re looking at the idea of explicit (declarative) memory—the storing of facts and events. If over the years you are constantly reminded of this event, it is more than likely that you’re trying to generate a (possible semi-accurate) image or memory of that particular event.

As far as your second comment goes, mother tongue and languages are different all together. When you learn as a yongue age, your cerebral cortex is still developing and your mind is absorbing everything like a sponge. As you learn these words, continue to use them, that language and those procedures are going to get stored in your long-term memory and then you’ll be able to recite all of these words and form sentences without thinking twice—something we would call implicit memory which helps us with procedure memories (riding a bike, writing, etc.).

docbrown··on Deep image reconstruction from human brain activity (2017)
Harvard updated their Buzzfeedesque post on this topic [https://www.health.harvard.edu/mind-and-mood/12-ways-to-keep...] which spans from crossword puzzles to avoiding alcohol.

But to keep it simple: read, do puzzles, stay active, do not drink or do drugs heavily. ——

Everybody already has a genetic makeup that limits their health—especially the brain—to a preset level. Some people suffer from infantile amnesia—basically not remembering early developmental stages (2-4) and preadolescent (~10 y/o); other’s claim to remember their birth (which is silly since ability to form memories is 2 y/o+). Some have the luxury of having strong working memory^1—a fancy word for temporary memories—but suffers from lackluster short-term memory.

I’m sure you get the point I was trying to make with that mediocre explanation.

tldr: You can not change your brain to not have dementia if your genetic makeup says so. You can however delay the onset possibly by keeping your brain active on a daily basis.

[1] https://en.wikipedia.org/wiki/Working_memory

docbrown··on Deep image reconstruction from human brain activity (2017)
Basing this on my rough memory of abnormal and developmental psych, the article and example you’re presenting is a type of Rey-Osterrieth Complex Figure [https://en.wikipedia.org/wiki/Rey%E2%80%93Osterrieth_complex...].

Some people may be able to produce a bicycle in more details than others but that depends on how developed and healthy their brain is to use their executive functions. Without knowing all of the subjects medical history—early dementia, strokes, all the good stuff- and current health, it’d come as no surprise that even consciously we cannot produce true representations of what we saw.

Police sketches from eye witnesses may be a good thing to look at when thinking of producing images from memory. Some people have better brain health and are able to utilize many different high and low-level functions to produce more accurate descriptions. Others not so much.

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