Saturday, December 27, 2014

Why is tropical water so clear?

Tropical (warm) waters are clear because they support much less biomass.
http://www.gma.org/herring/biology/distribution/comparing_oceans.asp 

This is because the higher temperature liberates the dissolved oxygen into the atmosphere, leaving less oxygen in the ocean to help support life.
"The solubility of oxygen, or its ability to dissolve in water, decreases as the water's temperature and salinity increase."
http://oceanservice.noaa.gov/education/kits/estuaries/media/supp_estuar10d_disolvedox.html

Saturday, December 20, 2014

11 steps to rehab your credit score

11 steps to rehab your credit score, from January 15th Consumer Reports.
The "big three" credit reporting bureaus are Equifax, Experian, and TransUnion.

[Number zero. Avoid borrowing money in the first place. Save up for things.]

Number one. Pay your bills on time. Payment activity accounts for 35% of the FICO score. At least pay the minimum each month rather than fall behind.

Number two. Check your reports by requesting one free credit report every four months through annualcreditreport.com

Number three. Don't apply for multiple credit cards at once. Unlike applying for a mortgage, auto, or student loan, applying for several credit cards generates multiple "hard pulls."[third party requests for your credit score] Instead, carefully read prospective cards' terms and conditions and apply for just one.

Number four. Don't carry plastic you don't use unless it carries an annual fee. Stick the card in a drawer instead. Part of your score depends on the ratio of the credit you use on your credit cards to the total value of your open credit lines. Eliminating a card reduces your credit line and can raise the ratio, which is [deemed] a negative.

Number five. Don't open too many new credit accounts at once. By doing so, you lower the average "age" of your accounts, which can lower your credit score.

Number six. Keep credit balances relatively low. Maintaining a revolving credit balance under 10% of your total credit line is wise, experts say.

Number seven. Beware of points-driven balances. If you charge everything on your rewards card for the points, switch to cash or a debit card for a couple of months before applying for new credit. Lenders can't tell from your score whether you zero-out your balances every month. They'll see your credit score, a snapshot in time, showing that you're charging a lot relatives to you're credit limit, which is a negative.

Number eight. Maintain a variety of credit types. Successfully paying an auto loan, a student loan, and credit card bills over the same period, for instance, shows that you're able to juggle different types of credit, a plus. That contributes 10% to your score.

Number nine. Get a personal loan to pay off your credit-card debt. You can improve your credit score by paying off the score-damaging "revolving" debt of credit cards with the score-benign debt of a personal loan. And, the interest rate on the loan is likely to be lower than the credit-card interest rates.

Number ten. Pay off debt in collections. It's always better to have zero balances on collections.

Number eleven. Get a secured credit card after a bankruptcy. If you've been through one, start populating your credit report with good credit. Secured credit cards may be an effective way to rebuild your credit. A bankruptcy will have less impact on your score over time as long as you aren't defaulting on new loans. But Chapter 7 and 13 bankruptcies stay on your credit report for 10 years.

Quotation about fear

"Fear is a powerful weapon. Fear doesn't give you the freedom to decide."
from the movie "The Sea Inside" by Alejandro Amenabar
Spoken in the context of deciding to pursue assisted suicide because of the fear of an unpredictable decline in health. But I think it has wider application, that our choices become limited when driven by fear; we are apt to impulsively choose the quickest option that returns us to safety when we are motivated by fear.

Xenon control unit - North American Motoring

Look what happens when government intervenes in how bright headlights are. 
My headlight blew on my car, and when I replaced the bulb it still didn't work. Tired out the igniter for the bulb had gone too. 
Read this informative post on how overprotective the government became when these brighter headlights were introduced. 

"There is a lot of data on whether Xenons blind oncoming drivers at night (they don't, generally). But in the 1990s the Department of Transportation NHTSA was very worried about that, and put a lot of rules in place. The washers to keep them clean, so guck on the lens doesn't scatter the light and make grandpa coming the other way crash. And the requirement that the whole unit be non-serviceable, lest the lens get to scratched and pitted as the miles rack up. Make people buy a whole new lens every time any part of the thing breaks. And of course the self-leveling. Which was there to compensate for neglecting to have your headlights aimed, and having a heavy load tilt the car up and blind somebody.

By 2000 the NHTSA relented on these tough rules, realizing that worry over blinding drivers was overblown. But the early Minis were designed in the mid to late 90s, and so they started out with 1990s style sealed-all-in-one Xenons. But later they made it so you could replace the igniter and keep the rest of the light. I don't think washers and leverers were mandatory any more either, but they kept those around for some reason. Bling, I guess."


The Darwin Awards: sex differences in idiotic behaviour | The BMJ

Male idiot theory.
"men are idiots and idiots do stupid things."
Winners of the Darwin Award must die in such an idiotic manner that "their action ensures the long-term survival of the species, by selectively allowing one less idiot to survive."
http://www.bmj.com/content/349/bmj.g7094

Thursday, December 11, 2014

Fiber-concrete blocks: Durisol

Dry stack these blocks made with wood fiber and cement, add rebar, full with concrete. 
You can drill them, they insulate, you don't have to add interior finish. 



Thursday, December 4, 2014

Iridium crucibles

Iridium is the second densest metal, next to osmium. It is used to make crucible for purifying silicon wafers for semiconductors.

Iridium metal is employed when high corrosion resistance at high temperatures is needed, as in high-performance spark plugscrucibles for recrystallization of semiconductors at high temperatures, and electrodes for the production of chlorine in the chloralkali process.

Tuesday, November 25, 2014

Cheap hearing aids

http://www.mdhearingaid.com/

$300-$600

"if we made a one-size-fits-most, pretty good hearing aid that's user-adjustable, we could actually do it, and do it at a cost-effective price point" - https://www.chicagotribune.com/business/blue-sky/ct-sreekant-cherukuri-mdhearingaid-bsi-20150914-story.html

- reviews on Amazon
http://www.mdhearingaid.com/reviews/amazon/

sold by Amazon and also in Canada




Cool infographics

It's hard to make reams of data engaging or interesting; each of these artists were inventive. 

A graphical representation of which part of a city people send social media photos from, with each color indicating a different social activity, from food to music to nightlife. 


Tweets (photos tweeted) during hurricane Sandy in New York, with a diagonal line indicating when the power went out. 

An animated globe with current weather patterns like wind or heat:
Misery index of how harsh conditions are currently:
Beautiful map of current wind:


The color of the sky as an indicator of air pollution in China, with an entire year represented by one ring of the circle:

Earth's population as spikes on a page with no map underneath; because populations are concentrated along the coasts, you can recognize the geography easily. 

The author, who collected all of these does a great job in Popular Science. Katie Peek, http://www.katiepeek.com/ has a good webpage with links to her work. 

And here's a list of her recent contributions to Popular Science:

T

Monday, November 17, 2014

Sunday, November 16, 2014

Iberico ham flavor comes from acorns

http://en.m.wikipedia.org/wiki/Jam%C3%B3n_ib%C3%A9rico
a type of cured ham produced mostly in Spain...made from black Iberian pigs fattened on barley and maize for several weeks...then allowed to roam in pasture and oak groves to feed naturally on grass, herbs, acorns....the diet may be strictly limited to olives or acorns for the best quality jamón ibérico …some producers cure their jamones ibéricos for up to 48 months...is very expensive and not widely available abroad

Monday, November 10, 2014

How long did it take to sell a billion dollars worth in China?

The answer will surprise you.
Alibaba, the Chinese equivalent of Amazon, continues to do very well. This statement astounded me - a billion in sales in a quarter-hour. China clearly is a massive marketplace.
"Alibaba recorded its first $1 billion in sales this "Singles' Day"* in only 17 minutes—it took about an hour last year"
*"Singles' Day—so named because the date Nov. 11 has four singles (11/11)—was started as an in-joke between university students, but has morphed into China's equivalent of Cyber Monday...When Chinese netizens celebrate not having anyone special in their lives by buying billions of dollars worth of products online"


Wednesday, October 22, 2014

NYTimes: Hard Lesson in Sleep for Teenagers

Uh-oh. Lots of increased risk in kids (poor grades, risk-taking, sadness) who don't get enough sleep. And sleeping in on weekends doesn't help.

http://well.blogs.nytimes.com/2014/10/20/sleep-for-teenagers/?smid=nytcore-iphone-share&smprod=nytcore-iphone

Adolescents who do not receive adequate rest have trouble keeping up in the classroom and are more vulnerable to other health problems. And catching up on sleep on the weekend won't help.


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Friday, October 17, 2014

Ebola virus survivability and aerosol spread

Scary!
Ebola virus can be transmitted with just a single aerosolized organism, and can last several hours in the dark even when dried out on a countertop. 

Here are some excerpts:
INFECTIOUS DOSE: Viral hemorrhagic fevers have an infectious dose of 1 - 10 organisms by aerosol in non-human primates.
...however, airborne transmission has not been demonstrated between non-human primates 
INCUBATION PERIOD: Two to 21 days 

 STABILITY AND VIABILITY

All information available on stability and viability comes from peer-reviewed literature sources depicting experimental findings and is intended to support local risk assessments in a laboratory setting.
DRUG SUSCEPTIBILITY: Unknown...Although clinical trials have been completed, no vaccine has been approved for treatment of ebolavirus. Similarly, no post-exposure measures have been reported as effective...There are no known antiviral treatments available for human infections.
SUSCEPTIBILITY TO DISINFECTANTS: Ebolavirus is susceptible to 3% acetic acid, 1% glutaraldehyde, alcohol-based products, and dilutions (1:10-1:100 for ≥10 minutes) of 5.25% household bleach (sodium hypochlorite), and calcium hypochlorite (bleach powder), 
PHYSICAL INACTIVATION: Ebola are moderately thermolabile and can be inactivated by heating for 30 minutes to 60 minutes at 60°C, boiling for 5 minutes, or gamma irradiation (1.2 x106 rads to 1.27 x106 rads) combined with 1% glutaraldehyde. Ebolavirus has also been determined to be moderately sensitive to UVC radiation.
SURVIVAL OUTSIDE HOST: Filoviruses have been reported capable to survive for weeks in blood and can also survive on contaminated surfaces, particularly at low temperatures (4°C). One study could not recover any Ebolavirus from experimentally contaminated surfaces (plastic, metal or glass) at room temperature.  In another study, Ebolavirus dried onto glass, polymeric silicone rubber, or painted aluminum alloy is able to survive in the dark for several hours under ambient conditions (between 20 and 250C and 30-40% relative humidity) (amount of virus reduced to 37% after 15.4 hours), but is less stable than some other viral hemorrhagic fevers (Lassa). When dried in tissue culture media onto glass and stored at 4 °C, Zaire ebolavirus survived for over 50 days. This information is based on experimental findings only and not based on observations in nature. This information is intended to be used to support local risk assessments in a laboratory setting. 

Tuesday, October 14, 2014

Friday, October 10, 2014

Massive Claw

This massive claw is designed to assemble under-sea platforms for oil and gas production, I think. The story is told in time lapse because it's so huge.

http://youtu.be/7gU2ieExfqA

Wednesday, September 24, 2014

Saturday, September 20, 2014

Watch These Ants Use Teamwork







Ants make a bridge - amazing teamwork.



Shape of an ant colony - cool! They poured molten aluminum into an anthill.


Thursday, September 18, 2014

Nature's GPS

Scientists have figured out which part if a butterfly's brain computes migration paths, assessing the sun's height and direction and compensating for time of day, even using polarized light on cloudy days. 

Razor clam

"A razor clam can dig one-third of a mile through underwater soil on the amount of energy in a double-A battery: it squeezes its shells together. Surrounding sand falls into the newly created space. Further squeezing draws water into the mix, making a pocket of quicksand that the clam pulls itself through." - Popular Science August 2014, p. 33

Fearless Genius

"[Steve Jobs] pushed them, sometimes kicking and screaming, to do what they thought they knew was impossible - until they somehow rose above their own considerable talents to deliver the miracles Steve demanded." p. 32

"Many at Apple were intrigued to learn that contrary to Wall Street's hyper-short-term thinking and the typical American business plan, Nintendo had conceived a hundred-year business model for itself." p. 74

"Apple had worked on this [handwriting] recognition software for years, but they could not solve the tricky challenge... By chance, one night in 1987 in Moscow, in the final years of the Cold War, an Apple board member answered a frantic knock at his hotel door. A Russian engineer nervously handed him a disk [that] contained the handwriting-recognition software that Apple desperately needed." p. 79






-Fearless Genius: The Digital Revolution in Silicon Valley. Doug Menuez. Atria Books 2014.



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Truck Trial Milovice

Let's go play in the mud.

http://youtu.be/_vWwrpnMhXU

Wednesday, September 17, 2014

Third world water box - cool!

A bright red shipping container...Solar panels on the roof power [it] and two faucets dispense free purified drinking water to anyone who wants it...the container is meant to be a kind of "downtown in a box": a web-connected bodega-cum-community center that can be dropped into underdeveloped villages all over the world. Coke calls it an Ekocenter. 
Inside the big red box sits a smaller one, about the size of a dorm fridge...Using a process called vapor compression distillation, a single [one] can purify more than 250,000 liters of water per year, enough to satisfy the needs of about 300 people... [Their design incorporates] a "counterflow heat exchanger" that would run cool incoming liquid past superheated distilled water that had been vaporized and compressed. 
The question was how to get the purifiers mass-produced and into the hands of those who needed them...
The medical and pharmaceutical companies Kamen had worked with over the years weren't much better positioned to help. They had infrastructure in developed nations but not in the 100-odd countries where he hoped to see the technology deployed.
Frustrated, Kamen had another obvious-in-retrospect insight.  'If there's one thing you can buy anywhere in the world, it's a Coke.' ...Coke is something you drink, and they have coolers that are about the size of our machine, and they have bottling partnerships around the world. 

http://www.coca-colacompany.com/stories/slingshot-inventor-dean-kamens-revolutionary-clean-water-machine#TCCC

What about maintenance? 
For the first manufacturing run of 50 Slingshot machines, Kamen has created tooling to make the devices more robust than ever before. They have plastic parts that won't corrode, and each one is equipped with a phone chip to send remote monitoring data regularly back. 
http://www.wired.co.uk/magazine/archive/2013/08/features/engine-of-progress


"Almost every project we do starts out with most people thinking we are nuts." Yet he's made an enviable career out of proving such doubters wrong...in the next few weeks, Kamen's device -- named the Slingshot -- will begin shipping to Paraguay, South Africa and Mexico...The statistics of the global water problem are startling: 783 million people around the world don't have access to clean water... In the late 80s, he and the engineers at DEKA had been approached by Baxter Healthcare to develop a portable device that would let kidney patients treat themselves at home, cleaning their blood using a technique called peritoneal dialysis...But distillation also requires water to evaporate into steam before then condensing back into a liquid, and Kamen wanted to do it at a rate of ten litres an hour. "It turns out it would take 25kW of continuous input power," he says. "Your electric bill would be $50 a night." Instead, Kamen realised that, if he could recover the energy usually lost as radiated heat when the steam condensed back into water, he could use it to help warm more cold water as it entered the system, drastically reducing the amount of power the system required...He recognised that the machine could remove contaminants from water and purify it. In seeking an improvement to a medical practice necessary for a few thousand people worldwide, he realised he may have stumbled upon a way of saving millions of lives...Coca-Cola -- with its web of international bottling franchises bringing their products to every country on Earth (with the exception of North Korea and Iran), and a distribution network that enabled them to deliver bottles of Coke into the most remote communities -- might be the one organisation that could help him with Slingshot. "To me, Coca-Cola is not a soft-drinks company. Coca-Cola is the largest, most efficient logistics operation ever put on this planet," Kamen says. "...and the poorest people in the world get access to it."...Kamen has created tooling to make the devices more robust than ever before. They have plastic parts that won't corrode, and each one is equipped with a phone chip to send remote monitoring data regularly back to DEKA. He expects they'll require no expert maintenance for as long as five years...DEKA project for Coke, the company intends to make this first generation of Slingshots a core element of its EKOCENTER plan, in which full-size shipping containers -- outfitted with a shop, a water machine, solar power, a phone-charging station, TV and an internet connection -- will provide what he calls a "downtown in a box" in even the most remote communities. 

Men slower than women

Finally there's proof that men are slower than women. At least, their healing is slower than women.
Men heal slower than women.
"significant wound repair delay that correlated with increasing testosterone levels (P = 0.001) in the healthy elderly men"
http://www.medscape.com/viewarticle/524313_5
Ashcroft GS, Mills SJ. Androgen receptor-mediated inhibition of cutaneous wound healing. J Clin Invest. 2002;110(5):615-624.

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Sunday, September 14, 2014

How to sell your old stuff

Find an auctioneer at auctioneers.org
Write detailed descriptions of items for the auctioneer.
Attend a few sales. See what different houses specialize in to see which ones pull in a good crowd. Ask how sales are promoted, and whether auctions are simulcast online. Find out why the "sell-through" rate is - what percentage of sales are actually completed. A good rate is above 75%.
Beware if your item doesn't sell the auction house may charge you a percentage of the reserve price.
Virtual consignment shops that specialize in fashion clothing: TheRealReal, Rodeo Drive resale, Linda's stuff. What will they charge, how much is shipping (and return shipping if the item doesn't sell) and who pays credit card and paypal fees.

Find thrift stores on NARTS.org and click on "Whatever your needs..Find it here" Bring photos of your items to an appointment with the shop owner - expect them to keep 50% of sales. Get a contract for who's responsible for stolen goods, the payment schedule, and what happens if your goods don't sell.
Get an idea of items' value at Statricks.com
Garage sale: check if you need a license. Star on Thu or Fri early, at 6 or 7 am, to catch the crowd going to work. Think security - lock your house and keep your money and phone with you at all times. Beware of counterfeit bills which are often large bills.



From "Sell Your Stuff," Consumer Reports Sept '14

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Saturday, September 13, 2014

Monday, September 8, 2014

Big brother is watching your car, legally

Repossessing cars is tricky because it's hard to predict where the car may be. In this article, a fleet of vehicles is described that drive around and capture massive databases of license plates and GPS locations and build a profile of cars and locations just in case they are one day going to be repossessed. An alarm goes off in the  surveillance vehicle if it's a currently wanted vehicle.
Although the same could be done with facial recognition or cell phone location histories, but privacy laws intervene there. 
Access to such databases of car license plates and their locations are available from skiptracers, Merlin data, TLO.com and lexisnexis, but these repossession scouts just work for the local tow truck company, toting around $23,000 in hidden camera equipment.

http://www.popsci.com/article/technology/scan-artist

Update: now the police are using the same technique, to track vehiclesnd keep a database:

https://youtu.be/DH7edXaZS0A


https://www.popsci.com/article/cars/car-buyers-repo-man-just-click-away/
"some lenders are protecting their investments by making sure the cars are never really out of their control. Thanks to GPS, phone apps, and ignition locking devices, lenders can remotely shut down the car of someone who's behind on payments."

Saturday, August 30, 2014

Retirement ideas

Interesting perspectives on retirement. 
Especially traveling to volunteer - "Nomads on a Mission Active in Divine Service, or Nomads, and RV Care-A-Vanners, an initiative of Habitat for Humanity."

NYTimes: Increasingly, Retirees Dump Their Possessions and Hit the Road


http://www.nytimes.com/2014/08/30/business/increasingly-retirees-dump-their-possessions-and-hit-the-road.html?smid=nytcore-iphone-share&smprod=nytcore-iphone

More retired Americans are getting rid of their homes and traveling, with 360,000 of them receiving Social Security benefits at foreign addresses.


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Friday, August 29, 2014

Solar off grid manufactured home

http://tinyhouseblog.com/park-model-homes/off-grid-solar-cavco/


The solar home has a $47,000 starting price, and this home shown here has options that top it out around $70,000... Still relatively unknown to most consumers, recreational park trailers or “park models” are 400-square foot movable resort cottages that are designed exclusively for part-time recreational use.
Options like Bamboo flooring, upgrade slate tile backsplashes, upgrade kitchen cabinets, 12’ sliding glass doors etc...
“We believe we are the first company in the RV business to produce a trailer product that can produce its own electrical power,”...

See also the Montainer
http://www.montainer.org/

and other homes built from repurposed shipping containers
http://inhabitat.com/index.php?s=shipping+container

Wednesday, August 27, 2014

Preserve fresh foods on your shelf longer

The Future of Food Preservation

To tackle food waste, the U.S. Department of Agriculture and partner Worrell Water Technologies developed a one-square-inch packet that extends the refrigerated life of fruits and vegetables by up to five weeks. Each permeable packet contains Curoxin vapor, a proprietary disinfectant that releases slowly inside a clamshell container and envelops fresh food in an antimicrobial cloud. The effect? Water loss and fungal growth are significantly arrested, which maintains produces' firmness, color, and taste. Currently in trials, Curoxin should be available in 2015. —MATT JANCER

Tuesday, August 26, 2014

Why didn't biodiesel take off?

The slow acceptance of biodiesel is surprising. Strictly speaking, I guess one is just temporarily sequestering the CO2 in the fuel until you burn it, but that is better than burning up petroleum reserves (especially when it requires massive devastation to dig up tar sands.)
I think people have a bad feeling using large quantities of plant products to fuel their life, that could alternatively feed starving thousands, especially when it takes "7.6 pounds of soybean oil required for each gallon of biodiesel.
Again, it's better than digging up petroleum, but it can be hard to shake up the status quo when people feel they're stealing from starving children. 

In comparison, it takes about 1/4 of the energy in a barrel of oil to extract and refine it from tar sands, as this MIT thesis contends. Maybe that's more just a comparison of energy density - I wasn't able to find a comparison of the number of joules of energy to bring biodiesel versus tar-sands petroleum to market, but I suppose it would be similar. 
http://dspace.mit.edu/bitstream/handle/1721.1/29589/52906785.pdf?sequence=1

Also I understand that biodiesel can 'sludge' at subzero temperatures, making for tough cold-weather starts, though not an insurmountable problem as they mention in the paragraph. http://en.m.wikipedia.org/wiki/Biodiesel#Low_temperature_gelling

It's just unfortunate that, at the time when biodiesel was gaining traction, its cost was about 20% higher than regular diesel. (Fig 3 at http://www.c2es.org/energy/source/renewables/biofuels/biodiesel)
If only market conditions had been slightly different at the time, it might have taken off. 

I think biodiesel will take off once  mass production of biofuels from algae is sorted out, either in floating bags in the ocean (http://www.nasa.gov/centers/ames/research/OMEGA/#.U_0WY0CCPCQ)
or strung up in the desert 


NYTimes: Greenhouse Gas Emissions Are Growing, and Growing More Dangerous, Draft of U.N. Report Says

A sobering report, with 3- to 6-foot sea rises expected by 2100. However, developing nations are so intensely focused on lifting themselves out of poverty that there is little political impetus to take global warming into account. 
"Emissions are now falling in nearly all Western countries because of an increased focus on efficiency and the spread of lower-emitting sources of electricity. But the declines are not yet sufficient to offset rising emissions in developing countries, many of whose governments are focused on pulling their people out of poverty."


http://www.nytimes.com/2014/08/27/science/earth/greenhouse-gas-emissions-are-growing-and-growing-more-dangerous-draft-of-un-report-says.html?smid=nytcore-iphone-share&smprod=nytcore-iphone

The report says that warming has already led to food and climate crises, and that the failure to reduce emissions will lead to worse catastrophes.


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Tuesday, August 19, 2014

Can an EV tow it's own generator for long trips?

The Car Talk hosts' discussion of the dilemma of bringing along a generator to recharge an electric vehicle. 

This page describes a home-made electric pickup conversion with an on-board generator that also tows a larger generator for long trips. 

Friday, August 8, 2014

Save $500 a year solar-charging your commuter car

Add extra solar panels to charge your car, which pay for themselves in 14 years in this example.
Since one's car spends most daylight hours at work, it makes more sense to install a solar charging station at work.

http://pureenergies.com/us/blog/charging-an-electric-car-at-home-how-many-more-solar-panels-do-i-need/


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Wednesday, July 30, 2014

High-dose oral acetaminophen 30 mg/kg in pediatric anesthesia

high dose (40 mg/kg) oral acetaminophen for BMT
"All 60 min plasma concentrations were ≥ 70 μmol·l–1 (ED50 for adenotonsillectomy) and less than 800 μmol·l–1 (associated with toxicity)"
http://onlinelibrary.wiley.com/doi/10.1046/j.1460-9592.2002.00743.x/abstract

acetaminophen 60 mg/kg and 90 mg/kg paracetamol in fit young adult patients undergoing third molar extractions
"90 mg/kg dose, though safe, does not offer any advantages over 60 mg/kg dose"
http://www.ncbi.nlm.nih.gov/m/pubmed/18020073/

High dose acetaminophen 40 mg/kg was better than 100 mg/kg [Wow!!]
"High dose acetaminophen (100 mg/kg) was no more effective than 40 mg/kg and was associated with increased nausea and vomiting. "
https://sciencescape.org/paper/11758634

High dose acetaminophen premed for kids having BMT.
[RCT 0,20,40 mg/kg Signif less rescue narcotic at either dosage, and 20 min longer duration and less rescue antiemetic for the high-dose group.]
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3511941/

Fwd: Better mental state with spinal anesthesia with no sedation




General or spinal anesthesia: which is better in the elderly?

Chung F, et al. Anesthesiology. 1987.
http://www.ncbi.nlm.nih.gov/m/pubmed/3307537/

Anaesthesia for hip fracture surgery in adults.
Cochrane Database Syst Rev. 2016
...comparison of regional versus general anaesthesia for hip (proximal femoral) fracture repair in adults...We did not find a difference between the two techniques, except for deep venous thrombosis in the absence of potent thromboprophylaxis... large randomized trials reflecting actual clinical practice are required before drawing final conclusions. PMID 26899415


Confirmed in one study:
Not confirmed in other studies

Better mental state with spinal anesthesia with no sedation

https://link.springer.com/content/pdf/10.1007/BF03005334.pdf

"A significant intragroup difference between preoperative and postoperative MMS score was detected in the GA group"

Wednesday, July 23, 2014

Evaluating informed consent obtained by surgical residents.

Not the result I was expecting when I looked up this study.

"Ninety-nine per cent of patients reported that the resident adequately described the procedure and nine per cent had additional questions for the attending physician. Major surgery-specific complications were discussed with 89 per cent of patients. Benefits of the procedure were discussed with 96 per cent and alternatives with 85 per cent of patients. Residents received an overall grade of excellent (74% of patients), good (25%), or fair (1%)."
http://www.ncbi.nlm.nih.gov/m/pubmed/24887738/

Hope WW, Walters K, Bools LM, Adams A, Hooks WB 3rd, Clancy TV.  Related Articles
 Evaluating informed consent obtained by surgical residents.
 Am Surg. 2014 May;80(5):522-4.
 PMID: 24887738

Saturday, July 5, 2014

How text-to-speech is made

To say the word "impressive" the voice engine stitches together parts of the words "important," "president," and "detective" from recordings of a boy reading words.

Monday, June 16, 2014

Persian rug photo

This self-taught Iranian photographer places Persian rugs in unusual places. 
http://ajammc.com/2012/12/22/persian-rugs-the-iranian-everyday-jalal-sepehr-in-yazd/

My favorite is this one:

Warning of the fallacy of p values

" the surprisingly slippery nature of the P value, which is neither as reliable nor as objective as most scientists assume."
"...suggested that most published findings are false"
"P value of 0.05 became enshrined as 'statistically significant', for example. "The P value was never meant to be used the way it's used today,""
"Most scientists would look at his original P value of 0.01 and say that there was just a 1% chance of his result being a false alarm. But they would be wrong. The Pvalue cannot say this: all it can do is summarize the data assuming a specific null hypothesis. It cannot work backwards and make statements about the underlying reality. That requires another piece of information: the odds that a real effect was there in the first place. To ignore this would be like waking up with a headache and concluding that you have a rare brain tumour "


Wednesday, June 11, 2014

Okanagan wines:

"So... that's a tough question. Meritage from BC is usually a good place to start. There are some great ones.

My bias is that Nk'mip is good, but well marketed and a bit overpried. Their Meritage can be nice but as you said $63/bottle and I think there are other wines of equal quality for lower price.

Osoyoos Larose used to be $60 but is now $45. Its a cult wine, well marketed again, but has a big following. Marek, Ian and myself in various combinations have done blind tests and enjoyed it, but... The Petales d'Osoyoos is their second label. Usually around $25 I think, and not much different (you aren't paying for the label then).

Cerelia and Fort Berens both have really good Meritages if you can find them (Discovery or the wine museum would be your best bets). Fort Berens is from Lillooett but sources much of their Meritage grape from the Osoyoos region, Cerelia is a small estate winery from Keremeos.

Also from Keremeos is Orofino. Their Passion Pit Cab Sauv has been really tasty if you can find it (you can order it from them) and they make a Beleza blend (both $25-$38).

La Frenz on the Naramata Bench is great. Their Montage ($22) has gone really well with steak, but their Grand Total is that much better ($40/bottle) depending on how you are feeling.

Burrowing Owl (down near Oliver) of course is a generally good winery and if you can find their Meritage its worth trying a few bottles. We've also enjoyed the Athene and Cab Franc. (I think they are all in the $30 range).

If you want to spend more and can find it Hester Creek's "The Judge" is great, but needs to be aged. Le Vieux Pin's Syrah is really nice, their Equinoxe wines are big and need to be aged but tastes great!

Another caveat. Most of the wineries are selling their 2011 reds right now. I'm not a fan of these wines. I think the Okanagan gives nice rounded fruit characteristics and this was a more acidic year without the earthiness and tannin that can balance it. Depends upon the winery and such but often I've been dissapointed. 2010 and 2009 seem to have been better. 2012 may be a bit off, 2013 looks like it should be good.

Is that a good start?"

Monday, June 9, 2014

The best message is no message.

Interesting psychology here. As I see it, discovering by yourself that something is yummy is more powerful than having someone else tell you it's good.

http://nyti.ms/1kNQQls

To persuade children to eat healthy food, new research suggests that giving no message at all trumps any other persuasion.

Tuesday, June 3, 2014

Sign of the times.

My wife got a handwritten letter from our college-age daughter, and didn't recognize her writing at all.

Wistful quotation

"there was a calmness and simplicity to life that seems achingly
appealing by the frantic standards of our sleek, cyber-driven times"
-Ring Lardner

Sunday, May 25, 2014

Great jobs to do in retirement

Deliver new RVs to dealers/buyers, or transport and drive a combine, flowing the harvest northward across the continent. 

30% of their drivers are seniors

http://www.rvtransport.com/



"Is harvest your favourite time of year?  Can't get enough running combine? Have a passion for farming? Love to see the open road through the windshield of a semi?   Enjoy a job well done?  Want to see the most advanced farming operations of North America?  Love to travel? If you answered yes to all of the above then we may have the job for you!"





Saturday, May 24, 2014

Natural woman sung in 17 different voices.

These impressions are spot on - gestures and everything.
Few impressionists can switch between so many voices so quickly (Robin Williams, Frank Calliendo), and I've never heard one sing and also deliver a fine performance.



http://bcove.me/j60urmdz

Wednesday, May 21, 2014

‘Happy’ Dancers Arrested, Abused in Iran

Such an outrage - arrested and abused for showing how happy they were!! The ultimate of repression.
'Happy' Dancers Arrested, Abused in Iran
"Thanks for thinking about us," says an Instagram message from Neda, one of six Iranians arrested for posting a music video dancing to Pharrell Willia...
Source: http://www.thedailybeast.com/articles/2014/05/21/happy-dancers-arrested-abused-in-iran.html

Sunday, May 11, 2014

How Google's Self-Driving Car Works

Deconstructing how we drive. At about 12 minutes they discuss the human/social element of polite vs aggressive drivers doing unexpected things at a 4-way stop, and how the driverless car navigates this and performs the decision making.

http://youtu.be/YXylqtEQ0tk






Thursday, May 8, 2014

NYTimes: Apple Said to Be in Talks to Buy Rising Music Brand for $3.2 Billion

"For Apple, which has a $159 billion cash hoard, a $3 billion deal would have little effect on its purse." - wow! 

http://nyti.ms/1jm6a8G

An acquisition of Beats Electronics and its music-streaming service would be Apple's largest ever and would see the maker of the iPhone acquire the biggest manufacturer of high-end headphones.

Tuesday, May 6, 2014

The Best of 2013 Car Crash Compilation - NEW by CCC :)

Another car crash video. Look how many are caused by inattention and by performing U-turns without looking.
This one is much more tightly edited than most of these videos.

http://youtu.be/bHjz9QsqYoE


Sent from my iPhone

Monday, May 5, 2014

How Complex Systems Fail.

I agree that post-hoc analysis favors finding a single root cause in a complex system where every practitioner is just trying to weigh competing principles of safety, cost, efficiency, and laziness.

NYTimes: Libertarians Trail Meter Readers, Telling Town: Live Free or Else

Thank goodness for ex-cons who don't pay taxes as a protest, and follow meter-maids around and taunt them. Life just wouldn't be interesting without such broad-minded altruists. 

The city has resorted to countervigilantism, "hiring a private investigator to follow and videotape the activists following and videotaping the parking enforcers"

Oh brother. 

http://nyti.ms/1unIRiY

Activists in Keene, N.H., are tracking parking officers, feeding expired meters and leaving notes saying "we saved you from the king's tariff," all in an effort to combat the "violent monopoly" of government.


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Stem cell based therapy for osteoarthritis in a sheep model

There is something alluring, captivating about using your own pluripotent cells to regenerate cartilage in damaged joints. Unfortunately, a respected organization feels it's too early and preliminary to put hope in this technique.
Crude cell extracts of people's blood may not really be true stem cell infusions. Therapy is totally unregulated. What happens to these pluripotent cells after they're implanted? Trials are too small to be conclusive. 

Review of a few dozen papers:
"knowledge on this topic is still preliminary, as shown by the prevalence of preclinical studies and the presence of low-quality clinical studies"

What happens to these powerful cells? "concerns have been raised regarding the migration, biodistribution, survival, and safety of MSCs following systemic infusion or local implantation"

Good results from 7 patients in New York: 

NYTimes.com: Valuable Humans in Our Digital Future

Interesting article looking at our digital world and how prized true human contact is becoming. As more and more people have entire careers that are online creating websites and so on, their life's work is so ephemeral compared to the craftsmen of yesteryear, and perhaps people are coming to value the human interactions of life more because they see that as more enduring than their life's work.

From The New York Times:

Valuable Humans in Our Digital Future

A recent article noted that lots of consumer technology is available to the poor. The things that get people out of poverty, like education and child care, are becoming more expensive. You could read that as a sign that the digital explosion is creating a new kind of shortage.

http://bits.blogs.nytimes.com/2014/05/03/valuable-humans-in-our-digital-future/

Thursday, May 1, 2014

Lucca Italy

Bruno suggests staying in this town to be central to everything.

Lucca LU
Italy
http://goo.gl/maps/Ri5bL


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Anesthetic gases contribute to Global warming

Wow! "Most of the organic anesthetic gases remain for a long time in the atmosphere where they have the potential to act as greenhouse gases. Published atmospheric lifetimes range between 1.4 and 21.4 years for sevoflurane and desflurane, respectively. Various volatile anesthetics have been calculated to have a range of 1100 (isoflurane)9 to 3766 (desflurane)3 times the greenhouse warming potential of carbon dioxide (CO2)...[a typical hospital puts out] the equivalent of approximately 100 to 1200 passenger car emissions/year/midsized hospital.  In more personal terms, one 8-hour day, or 8 MAC-hours of desflurane delivery at 1 to 2 L FGF would equal 58 to 116 days of average auto emissions"

Monday, April 28, 2014

Noisy art.



I think this artist has always been fascinated with the sound of falling rain. His complicated installations must take an army of workers to set up.
All that work, and I'm sure it's only interesting to view for a minute or so. 

I like the woodworms munching at 9:46.

One of my favorite sounds is rain falling on a completely calm lake when you're out in a canoe. None of his installations get quite that sound, though the ones at 3:42 and 8:38 and 12:58 come close. 

It looks like this:
Rain falling on a lake has a wonderful musical silvery sound, and it sounds kind of like this, although there's too much other noise here from rain hitting the camera body, and the water is too shallow. 

You can't quite hear the musical quality of the sound on this video, mostly because of all the talking.

The sound of raindrops hitting water is caused by bubbles of air oscillating underwater.[35][36]
The sound of raindrops hitting water is caused by bubbles of air oscillating underwater.[35][36][37]



Google navigates

A nice illustration of the complexities of driving past cyclists who change their mind, or a construction zone where lane blockages change daily.
http://youtu.be/dk3oc1Hr62g

Sunday, April 27, 2014

Hearing aids harness the brains of your iPhone

Conjuring Images of a Bionic Future

As they work more closely with our mobile computers, devices that once simply fixed whatever ailed us will begin to do much more.

http://www.nytimes.com/2014/04/24/technology/personaltech/app-controlled-hearing-aid-improves-even-normal-hearing.html


Sent from my iPhone

Friday, April 25, 2014

Self-balancing 2-wheel car.

Very cool. 

Dramatic demonstration of it's balancing ability when it's yanked by a pickup at 1:16 in this video: 
Reminds me of the two-wheeled DARPA-challenge motorcycle, though a lot sleeker. 

Thursday, April 24, 2014

Hearing quality restored with bionic ear technology used for gene therapy | e! Science News

What a novel use of electric current from a cochlear implant - use it to achieve targeted delivery of neurotrophins by electroporation - cool. 


Electroporation sounds like a tricky process to achieve the right voltage that doesn't fry the cell: http://en.m.wikipedia.org/wiki/Electroporation

Wednesday, April 23, 2014

Face recognition

This interesting article explores pros, cons, and challenges of face recognition - how it can be used for good to find criminals quickly, and for bad, potentially allowing google glasses to identify a stranger and give you his social security number. 

And here's a blog that links to some examples of super-resolution video processing to create a high resolution image from a grainy one. 

And here's an interesting proposal that you can increase a camera's resolution by shaking it. In essence, an indistinct line that crosses two pixels on the recording chip is made more distinct by shaking the chip by an amount less than a pixel width and then analyzing the consecutive images to achieve better clarity. 

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