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Saturday, June 5, 2010

Our Sport Heros Make US Fat

Americans like football, and football players are big men. In America, it is good to be big, even if its big in circumference rather than height.

In soccer loving countries, most of the men weight less, is that because their childhood heros were thinner?
Soccer MVP Landon Donovan - 158 lbs
I have made list of MVPs of different sports, and the soccer player is the skinniest.








Player Sport Height Weight BMI
Payton Maning NFL Football 6'5" 230 27.3
Joe Mauer AL Baseball 6'5" 230 27.3
Albert Pujols NL Baseball 6'3" 230 28.7
LeBron James NBA Basketball 6'8" 250 27.5
Landon Donovan USMLS Soccer 5'8" 158 24
Tiger Woods Golf 6'1" 185 24.4

NBA MVP Lebron James
250 lbs



Observations: First athletes are muscular, and that makes them heavier than non-athletes. All elite athletes are lean, but not thin. They often have high BMIs.

American athletic heros are all over 6'3" which is over 95% for height, and three are 6'5" which is probably 99%, but I have trouble finding data. These sports heroes don't look like the fans. Maybe that is why they are heroic. Nonetheless, the men and boys who spend the weekend watching them on TV, can't hope to compare.

Women talk about "body image," when they discuss whether girls can look like fashion models or pin-up models. Men don't discuss that, but I think that norming behavior is there anyway, changing the way boys and young men think about how they should look.

There is a guy at work who used to play football in college; I am sure he was muscular and strong when he played. He is no less big today. He told me once that he felt weak when he lost weight, but he is 300 lbs. 

Payton Manning 230 lb and Tiger Woods 185lb

Albert Pujols 230 lbs


Everyone knows Americans weigh more than people in other, more soccer loving countries.







It would be interesting if golf or tennis became as popular as football, baseball or basketball. Would guys gradually get thinner.



The following table illustrates how Americans are heavier than two soccer loving countries. Surprisingly, it was hard to find better data than this.




Country/Region↓Average male weight↓Average female weight↓Sample population /
age range↓
Methodology↓Year↓Source↓
Chile75.6 kg (166.7 lb)65.7 kg (144.8 lb)17 and overMeasured2003[1]
Germany82.4 kg (181.7 lb)67.5 kg (148.8 lb)18 and overMeasured2005[2]
United States86.6 kg (190.9 lb)74.4 kg (164.0 lb)20-74Measured1999–2002[3]

I want to close with fictional heros. Clearly Japanese Animie heros are skinner than Superman and Batman. 

 Skinny Japanese hero



Big American superhero:













I would love to get a few comments on this.

Monday, May 31, 2010

More on the BP Dispersant, Corexit EC9500

See 18-June Post for the composition per the EPA 


Nalco has issued additional info on Corexit EC9500, which is now being used in place of EC9527A. They claim it is a blend of six ingredients. On its MSDS, it has three ingredients that add up to about 45% of the total composition. Ordinarily you'd say the rest was water, but it is hard to say. A Nalco press release says that there are six ingredients, and then in crossword puzzle fashion gives clues as to what they are: 


    • One ingredient is used as a wetting agent in dry gelatin, beverage mixtures, and fruit juice drinks.
    • A second ingredient is used in a brand-name dry skin cream and also in a body shampoo
    • A third ingredient is found in a popular brand of baby bath liquid.
    • A fourth ingredient is found extensively in cosmetics and is also used as a surface-active agent and emulsifier for agents used in food contact.
    • A fifth ingredient is used by a major supplier of brand name household cleaning products for “soap scum” removal.
    • A sixth ingredient is used in hand creams and lotions, odorless paints and stain blockers.





Let's guess what they might be:

1. Probably the main surfactant, I believe an a fatty alcohol sulfonate -- probably ethoxylated
2. Is a petroleum distillate or a fatty alcohol-- which must be there for package stability
3. Is the propylene glycol
4. Appears to be a secondary surfactant. I am going to guess it is an EO/PO alcohol, where EO/PO stand for a block copolymer of ethylene oxide and propylene oxide. 
5. Is a water softener - certainly a non-phosphate type. It could be an polyacrylic acid type or many other things. 
6. Is a solvent, perhaps the petroleum distillate disclosed on the MSDS.

Friday, May 28, 2010

Opossum Eats(!) Greg's Late Spring Tomatoes :-(

An opossum that lives in the woods in the back. 
This was going to be a posting celebrating the tomato harvest on May 28th, which I am still proud of, but the opossum came by and ATE my tomatoes. Oh No!

Tomato skins that remain from the opossum.



















Here is the residue from the missing tomatoes.








Happily there were a few tomatoes left. These were Sunsugar Cherry Tomatoes. They are orange colored, and usually sweet. These tomatoes -- like all very early ones -- are not sweet like they will be in late July.

Cherry tomatoes from another plant. 
The secret to early tomatoes is to get them to set fruit when they are still inside under the lights. If you move them out too early then there won't be flowers that get fertilized.  The fruit that sets outside won't be ready until July.

The warm weather this year really helped. I started these tomatoes in February, and used lots of Miracle Gro.  I used the Wall-O-Waters; see this post for details.

Sunday, May 23, 2010

BP's Oil Spill Dispersant is Nalco Corexit EC9527A

||Update from 18 June 2010||

The detergent being used by BP, up until recently, was Nalco's Corexit EC9527A. Nalco is a large company that makes specialty chemicals including detergents and surfactants.  It contains three ingredients, a solvent we call EB ethylene glycol monobutyl ether, a sulfonic acid detergent, and a few percent of propylene glycol.

The sulfonic acid detergent is secret, but it is likely to be an ethoxylated/propoxylated version of lauryl sulfonate -- probably naphthalene sulfonate, but possibly toluene sulfonate or benzene sulfonate. The presence of propylene glycol in the product leads me to believe they propoxylated the detergent.

This detergent is pretty generic, and it is hard to believe it would that dangerous. The MSDS has a few hazards that are mostly due to the irritation that a concentrated detergent would have on the eyes or skin. There are hazards due to the EB, which has some liver and reproductive side effects. (Probably not the greatest choice, but I suppose its cheap.)

EPA has a long list of approved dispersants for cleaning up oil spills. It is important to note that Corexit EC9527A is on the approved list. [24-May-10 update: BP has been using a blend including Corexit EC9500, which has the same active ingredient as EC9527A, or so we think.]


Product
(1:10 Product-to-No. 2 Fuel Oil ratio)
Toxicity
(LC50 values in ppm)
Effectiveness (%)
Menidia
(96-hr)
Mysidopsis
(48-hr)
Prudhoe Bay
Crude Oil
South Louisiana
Crude Oil
Average of
Crude Oils
BIODISPERS5.952.6651.0063.0057.00
COREXIT® EC9500A2.613.4045.3054.7050.00
COREXIT® EC9527A4.496.6037.4063.4050.40
DISPERSIT SPC 1000™7.908.2040.00100.0073.00
FINASOL OSR 525.402.3732.5071.6052.10
JD-1093.843.5126.0091.0058.50
JD-2000™3.592.1960.4077.8069.10
MARE CLEAN 20042.009.8463.9784.1474.06
NEOS AB300057.0025.0019.7089.8054.80
NOKOMIS 3-AA34.2220.1663.2065.7064.50
NOKOMIS 3-F410058.4062.2064.9063.55
SAF-RON GOLD9.253.0484.8053.8069.30
SEA BRAT #423.0018.0053.5560.6557.10
SEACARE ECOSPERSE 52 (see FINASOL® OSR 52)5.402.3732.5071.6052.10
SEACARE E.P.A. (see DISPERSIT SPC 1000™)7.908.2040.00100.0073.00
SF-GOLD DISPERSANT (see SAF-RON GOLD)9.253.0484.8053.8069.30
ZI-4008.351.7750.1089.8069.90
ZI-400 OIL SPILL DISPERSANT (see ZI-400)8.351.7750.1089.8069.90




Mysidopsis Bahia  - a shrimp used in toxicity testing
Menidia Beryllina - the Inland Silverside
Toxicity is determined by the effect of the dispersant mixed with No. 2 fuel, oil 10:1 on Menidia Beryllina and Mysidopsis Bahia after 96 and 48 hours respectively. 


Wikipdeia reports that BP is ordering multiple truckloads of Dispersit SPC 1000 from US Polychemical. US Polychemical does not provide any detailed Chemical. A government filing says it is a mixture of nonionic and anionic surfactants, which is not very helpful at all.  This seems to be one of those industries where everyone keeps secrets from competitors, but I suspect all the products on the market are basically the same. 


According to the table above, the new dispersant Dispersit SPC 1000 is much more effective against South Louisiana crude, but also more toxic than Corexit EC9527A. 


Overall, I am glad to see that there actually is marine testing on these dispersants. I think that dispersants help more than they hurt, and that there is no way that this massive oil spill is not going to have a massive harm on the environment. Choice of dispersants can direct that massive harm one way or another. So far, we seem to have escaped severe damage. 


Update  31 May 2010


Nalco has issued additional info on Corexit EC9500, which is now being used in place of EC9527A. They claim it is a blend of six ingredients. On its MSDS, it has three ingredients that add up to about 45% of the total composition. Ordinarily you'd say the rest was water, but it is hard to say. A Nalco press release says that there are six ingredients, and then in crossword puzzle fashion gives clues as to what they are: 


    • One ingredient is used as a wetting agent in dry gelatin, beverage mixtures, and fruit juice drinks.
    • A second ingredient is used in a brand-name dry skin cream and also in a body shampoo
    • A third ingredient is found in a popular brand of baby bath liquid.
    • A fourth ingredient is found extensively in cosmetics and is also used as a surface-active agent and emulsifier for agents used in food contact.
    • A fifth ingredient is used by a major supplier of brand name household cleaning products for “soap scum” removal.
    • A sixth ingredient is used in hand creams and lotions, odorless paints and stain blockers.

Let's guess what they might be:


1. Probably the main surfactant, I believe an a fatty alcohol sulfonate -- probably ethoxylated
2. Is a petroleum distillate or a fatty alcohol-- which must be there for package stability
3. Is the propylene glycol
4. Appears to be a secondary surfactant. I am going to guess it is an EO/PO alcohol, where EO/PO stand for a block copolymer of ethylene oxide and propylene oxide. 
5. Is a water softener - certainly a non-phosphate type. It could be an polyacrylic acid type or many other things. 
6. Is a solvent, perhaps the petroleum distillate disclosed on the MSDS.




Having done all this guessing, anyone with a sample and a lab could figure this out in less than a day.  The only people in the dark are 300 million Americans. All the competitors could analyze this right away. There is no reason they should not be disclosing the composition in full detail, except as feeble attempt to confuse BP's purchasing agents. 

Saturday, May 22, 2010

Breakthrough Bacteria with 100% Artificial Genes -- Another Coup For Craig Venter

At left is a photo of bacterial cells that have completely synthetic DNA. It is not a "synthetic cell" because they actually transplanted the artificial genes into a natural cell. That is, the technology to reproduce the rest of the cell's organs does not exist yet -- but we can synthesize the DNA, and the DNA can direct the synthesis of a daughter organisms.  Details are in Science.

The new organism is a synthetic version of  mycoplasma mycoides, which oddly is a parasite of goats and cows. The natural cell host was a closely related organism, mycoplasma capricolum, which causes pneumonia in goats. It seems these are quite small genomes, and that makes the task easier. 


Fans of Depth of Processing may remember my three previous posts on synthetic biology which mention Craig Venter and his institute. Venter sprang to prominence when he sequenced his own personal DNA with private funding at about the same time as the giant multi-national public effort finished. More recently he has made genetically engineered organisms for algae based power.  Venter has been waging a legal battle to get a patent on a synthetic organism, and anti-technology groups have been opposing him. 


The organism is dubbed "Synthia" and Venter's company Synthetic Genomics business plan focusses on what it is not. It does not contain scores of genes deemed non-essential. The hope is that new genes can be simply added to make the organism more useful industrially, pharmacologically or in energy production. This contrast with the conventional genetic engineering approach of putting new genes in a version of e coli. How much better a completely synthetic genome is, will be seen. If it actually permits a simpler more efficient organism, then it will be worth it.  The main feat in Venter's accomplishment was synthesizing so many base pairs without an error that disabled the organism. 


I view this development optimistically, and think what a great time to be alive and see this happening. I have little sympathy for those who think the synthetic biology is the source of some new flavor of evil. 


<<Oscillator Blog for another view>>

Tuesday, May 18, 2010

"It is not impossible to build a human brain, and we can do it in ten years." -- Henry Markham (2005)

Henry Markham is the leader of Blue Brain, and he claimed he could build a human brain in silico in a decade.  It has been five years now, and they are just finishing the feasibility stage. 

Markham claims to have modeled a network of 10,000 neurons, or 10^4. The human brain has 10^11 neurons, so it just needs 10^7 more. In fairness, if you could get the small scale brain right, duplicating it is not that hard.

 IBM has a human brain simulator project running, and it has the number of neurons as in a cat's brain. It is called C2, and it runs on a supercomputer at Lawrence Livermore Laboratory. The computer runs 83 times slower than a cat brain, taking 83 seconds to process what takes a cat only one second. A human brain is about 20 times larger than a cat brain.


C2 also sucks electricity. The computer takes 1.4 MW, and a human version would be 28 MW -- which is the size of a small industrial-scale power plant or a medium sized hydropower project.

IBM is designing chips to make this faster and more efficient. This is funded by our defense department -- who wants brain-like chips to make smarter devices. IBM has also release Blue Matter, which is a language for programing artificial brains. 

Programing artificial brains would be about the coolest job ever.

Thursday, May 13, 2010

Stars Only Birds Can See; and Super-Perception

Duncraft makes decals to put on your windows to keep birds from striking. They are called "Save-the Birds," and they work by marking the window glass in near-UV "colors."  We routinely have birds taking off from the birdfeeder and crashing into the windows usually when they are scared by other birds.

I like the idea of this since birds see different colors than people. Like everyone, I wonder how birds see differently than I do.

People have three color receptors in the eye, but birds have four, including one in the near UV. If one puts a UV absorber in a clear object, birds can see it, but people see nothing.

In regard to a product review, I don't recommend the Save-the-Birds decals by Duncraft because they are still to visible to me. I think they are distracting. I don't know how well they block birds, but they are not as transparent as I hoped they would be.



Like a color blind person does not know what full color vision is like, people can't know what bird's vision is like.  The birds have a receptor for about 350 nm, which is in the near UV.

As discussed, people can only imagine what 4-color vision looks like, although we could use a UV camera to guess.

More interesting is introducing this fourth color receptor into people by genetic engineering. We know that mammalian ancestors had four receptors, and the our line lost them somewhere along the way -- probably during a nocturnal phase of development. Anyway, reintroducing the gene into the eye should induce Super color vision -- though one might have to be very young to have it work. That is the brain would need to rewire itself to perceive it.

I thought this was science fiction but Jay and Maureen Neitz have been working to do this in monkeys already begining eleven years ago. They have been able to cure color blindness in these monkeys, so to speak.  Jacobs at Johns Hopkins has been doing the same with mice. In monkeys and in mice, the adult brain's can rewire themselves to process the extra color.

If indeed color blind people can be cured, as these adult monkeys have been, it would be possible for adult humans to receive another color gene and have super-sensory vision.

I wonder what that would be like!

Sunday, May 9, 2010

Paint or Die but Love Me



Gotta love this table from French artist John Nouanesing. I love the dreamy design and the wonderful red color.

Sadly this table has not (yet) been built, and the illustration is a rendering not a photo. It is entitled Paint or Die but Love Me.