Wednesday, March 30, 2005

Strong force black holes spit pions amidst a primordial quark-gluon liquid

The New York Times > Science > In Lab's High-Speed Collisions, Things Just Vanish

One would feel more confident that these little buggers can't swallow reality if the physicist's predictions were actually reliable. Alas, the scientific results appear to be somewhat surprising. While delightful, this does weaken the researcher's reputation as reliable prognosticators.

I like my title better than that of the New York Times.
The bits and pieces flying out from the high-speed collisions of gold nuclei at Brookhaven National Laboratory on Long Island have not been behaving quite as physicists had expected...

...In a normal black hole, the energy comes back out as photons, particles of light, what is called Hawking radiation. In a strong force mini-black hole, the radiation would come out as particles known as pions. Because of the differences between gravity and the strong force, a strong force black hole would inevitably fall apart, Dr. Nastase said...

... The collisions of gold nuclei produce matter as it existed shortly after the Big Bang. In the everyday universe, protons and neutrons in atomic nuclei are made of smaller particles known as quarks that are held together by the strong force, and because the strong force is so strong, it is ordinarily impossible to pull out a single quark...

... physicists expected that at ultrahot temperatures the bindings holding the quarks together would loosen and dissolve into a new state of matter, the quark-gluon plasma...

... Five years later, however, physicists are still holding off from claiming they have made a quark-gluon plasma. That is in part because the result of the collisions looks more like a liquid than a gaseous plasma...

... The scientists working on the experiment hope to figure out by summer a more definitive answer of what they actually produced at RHIC.
Update: Yes, a superfluid.

Tuesday, March 29, 2005

Lessons in technology: PDAs and the national health information infrastructure

Faughnan's Notes: Technology bites

Another example of why computers still don't work; and a comment on some deeper meanings.

Business need: be able to manage personal and corporate tasks and appointments separately. (Rule: don't intermingle.)

Ideal solution: A PDA/Desktop solution that allows one to identify tasks and appointments as being either work or home related and control their desktop synchronization appropriately.

Best available solution: Run two complete 'organizer' environments on my Palm PDA -- one is the native set, another Chapure is KeySuite. Each has its own synchronization. Integration is limited and occurs only on the PDA.

Problem: Even when the data models are consistent (that's another story, too awful to describe here), synchronization is problematic. Take for example today's story. Due to quirks in Outlook/Exchange I need to change the work desktop folder where I store my tasks.
1. Back up tasks in Outlook to a secondary store prior to surgery.
2. Copy all tasks to new folder. (Don't move, copy. I know from past experience moves are usually tougher for synchronization engines to handle than copies.)
3. Delete all tasks.
4. Synchronize and check.
5. Discover:
  • there are two tasks on the PDA KeySuite app that the synchronization engine can't "see". So they can't be dealt with. One is missing completely from the desktop. Not good.
  • when I copied in #2 there was an unrecognized filter applied; so the copy and sync didn't work the way I thought they did
Now #5 is a mixture of user error and bugs, but it's worse than that. I know from past experience:
1. In our setting Outlook/Exchange server are consistently messing up filters. Filter settings get lost or misapplied. It's a longstanding bug.

2. KeySuite has problems sometimes with filters -- it's a quirky bug and not replicable.
Fortunately, from years of experience, I know step 1 is reliable and it did indeed work today. So I'll wipe everything out, I'll get the missing task back somehow, and I'll sync and resync until everything is "clean" (for now).

How many people will handle all this? All those who combine servere geekishness with bull-headed obstinacy. I'd guess about five of us.

So once again -- why did the PDA market really collapse? It wasn't Graffiti that killed the Palm. I'd say it was a one-two punch:
1. Microsoft's FUD and well funded market entry incapacitated the few people at Palm who understood what was needed to provide true "profitable value" (vs. "user perceived value at time of buying decision").

2. Without a laser focus on the fundamentally very tough problem of synchronization and data models, the above was inevitable.
Are there broader lessons? Yes.
  1. We are ver far from having a reliable personal technology infrastructure. We can only manage simplicity, but the user market demands complexity.

  2. The US and UK are making billion dollar bets we can solve data model and synchronization problems in healthcare. But now I'm wandering into my real job, which I rarely mention on this blog ... This will, however, feature in a lecture I'm giving this Thursday.

Adaptive systems -- disabling the EPA hasn't been completely effective

Economist.com: Environment: New European rules will force electronics firms to eliminate toxic substances and take back and recycle their products

The Bush administration has neutered, knee-capped and decapitated the EPA. This has had consequences, but there are mitigating factors. Since auto makers can't afford two assembly lines, California's emission rules protect the entire nation. (This is a virtuous example of the same phenomenonn that is turning science texbooks into catechisms.) It turns out that the European Union is also helping out:
... The Restriction of Hazardous Substances (RoHS) legislation, which will apply throughout the EU from July 2006, bans products containing any more than trace amounts of lead, mercury, cadmium and three other hazardous substances. But it is just one of three pieces of EU legislation with which electronics manufacturers must comply. Another is the Waste Electrical and Electronic Equipment (WEEE) directive, which came into effect in August 2004 and requires manufacturers to take back and recycle electrical products. Finally, the Registration, Evaluation, Authorisation and Restriction of Chemicals (REACH) directive requires firms to register the chemicals they use in their manufacturing processes.

Although these rules apply only in the EU, their effects are being felt around the world. “We cannot afford to run two production lines,” says David Lear, Hewlett-Packard's director of Environmental Strategies and Sustainability. “We will be producing just one product for the worldwide market.” And component suppliers, wherever they are, must ensure that they comply with the new rules if their parts end up in products sold in Europe.

Similar rules are also being adopted elsewhere. China's Ministry of Information Industry is basing its rules on RoHS. In America, the Environmental Protection Agency has remained quiet on the issue, preferring instead to let the industry regulate itself. As a result, many states are introducing their own regulations. “The EPA is not taking a leadership role, which leaves companies trying to deal with each state individually,” says Mike Kirschner of Design Chain Associates, an electronics-manufacturing consultancy. California's rules, for example, are based on the directives...
In the 7 years prior to 2005 the US dumped about 550,000 tonnes of lead from electronic components. This may yet reverse some of the gains of removing lead from paint and gasoline (it's shocking now to recall gas once had lead in it). It's good to benefit from the distant mercies of the EU.

Monday, March 28, 2005

Revenge upon Green Bay: Minnesota educational rankings

Landlocked, cold and now No. 1 in H.S. diplomas

Minnesota is doing well in the education races. Our local paper. the Strib, takes the opportunity to land one on Wisconsin (and the Dakotas):
...Despite having one of the nation's top public universities, Dambroski's home state of Wisconsin trails Minnesota in both brainpower categories by miles. Its record in attracting educated people ranks with the Dakotas. Minnesota's record more closely resembles Colorado and California.
Clearly we Minnesotans are still mad about losing (again) to Green Bay.

PS. Blogger performance is truly abysmal today!

The NYT Magazine profiles Republican Exurbia -- through a megachurch

The New York Times > Magazine > The Soul of the New Exurb
One of the more striking facts to emerge from the 2004 presidential election was that 97 of America's 100 fastest-growing counties voted Republican. Most of these counties are made up of heretofore unknown towns too far from major metropolitan areas to be considered suburbs, but too bustling to be considered rural, places like Lebanon, Ohio; Fridley, Minn.; Crabapple, Ga.; and Surprise, Ariz. America has a new frontier: the exurbs. In a matter of years, sleepy counties stretching across 30 states have been transformed into dense communities of subdivisions filled with middle-class families likely to move again and again, settling in yet another exurb but putting down no real roots. These exurban cities tend not to have immediately recognizable town squares, but many have some kind of big, new structure where newcomers go to discuss their lives and problems and hopes: the megachurch.
I'm going to have to visit Fridley! I never thought of it as an Exurb. I'd love to know why these are such Republican bastions.

Remember Homeland Security? The EAPA can't handle prevention.

Schneier on Security: TSA Lied About Protecting Passenger Data

The Transportation Safety Authority lied about how they used travel data obtained from airlines. Shocked I am not. I would have been shocked if they'd actually been both competent and honest.

Schneier's story and the comments are both well worth reading. Arguably the ongoing thread of incompetence is even worse than the deceptions (is it a lying if no-one believes you?). My own experience with TSA staff has been unremarkable -- I've found them to be polite and far more attentive than I could be in their place. As an organization, however, they seem to be overwhelmed.

Alas, the Department of Homeland Security (remember them?) is no better. In a recent detailed analysis of US intelligence, The Economist dismissed the DHS with a single curt sentence. It's been a costly failure.

The 'East African Plains Ape' (that's us) was not designed to deal with prevention in a modern industrial society. It probably has something to do with the way we evolved, and the kind of probability heuristics natural selection programmed into us. Even so, Bush isn't helping.

The age of the net -- do we understand what we're riding?

IDEAS
Welcome to the largest bibliographic database dedicated to Economics and available on the Internet. Over 300'000 items of research can be browsed or searched, and over 200'000 can be downloaded in full text! This site is part of a large volunteer effort to enhance the free dissemination of research in Economics
Disregard the slightly mangled english -- this is an astounding work. There are so many of these projects on the net. Any one of us sees only a fraction of the whole.

Fifteen years ago there were only hints of what was coming. How well do we understand the changes swirling about us?

Sunday, March 27, 2005

Redefining science: the Justice Department's 'religious rights' unit

The New York Times > Arts > Frank Rich: The God Racket, From DeMille to DeLay
The Los Angeles Times has uncovered a three-year-old 'religious rights' unit in the Justice Department that investigated a biology professor at Texas Tech because he refused to write letters of recommendation for students who do not accept evolution as 'the central, unifying principle of biology.'
I assume this unit will also protect Scientology in its attacks on psychiatry, and guarantee that Christian Science pre-med students suffer no discrimination in admissions based upon their religious beliefs. If not, I strongly urge the Christian Scientists, Scientologists, and other faiths, cults and variants thereof to bring a class-action discrimination suit against the Justice Department. Science must not discriminate based on its bizarre concepts of testable models and non-consensus reality.

[correction: in the first version a typo meant I wrote "consensus" instead of "non-consensus". Sorry!]

Saturday, March 26, 2005

Madness of the Great WAr

t r u t h o u t - Niall Ferguson | Sinking Globalization

This Foreign Affairs article by Niall Ferguson compares today's world to that of 1905. This is not new; it's been a common comparison since 9/11. Even so, Niall does a good job of bringing these comparisons to life.

I've been particularly interested for the past few years in American history from 1885 to 1910. This is a fascinating article.

Creepy logo award: Social Explorer

Social Explorer - About Us
Social Explorer is an organization based in New York City. Our objective is to help Visually Analyze and Understand the Demography of the U.S. through the use of Interactive Maps. Our primary functions include Demographic Data Analysis, Interactive Map Design and Software Development.

One of our main goals is to show demographic change that's occured in the U.S. since 1870 till present. We maintain a collection of interactive maps that visually show some of the available Census Data running back to 1870s.

We have over 60 years of combined experince in data analysis. With Dr. Beveridge at helm, we have produced statistical information and themathic maps to Prudential Financial Services, New York Times, Time Warner, and many other entities.
Then New York Times and National Science Foundation are sponsors, but they need to do something about their logo. The eye in the nation is creepy.

The Puzzle of social cooperation in the East African Plains Ape

Brad DeLong's Website: Large-Scale Social Cooperation in the East African Plains Ape
Of all the puzzles in xenobiology, perhaps the most remarkable is the existence of large-scale (but very imperfect) social cooperation among the East African Plains Ape of Sol III.
There are those among us who would wash the EAPA from its habitat; those who wish to restart this experiment with the most promising canines, or even those frustrating dolphins. And yet, there is an awful fascination to the EAPS, a careening wreck of a creature perched on the very precipice of a barely tolerable culture. This slobbering beast draws our fascination, suspends our wiser judgments and blunts our aesthetic revulsion. Perhaps, in the ultimate analysis, we share some tiny measure of the abundant flaws of the EAPA. From this unspeakable past springs our horrific attraction.

Scientific American to include alternative perspectives

Scientific American Magazine Table of Contents: Current Issue
...In retrospect, this magazines coverage of so-called evolution has been hideously one sided...This magazine will be dedicated purely to science, fair and balanced science, and not just the science that scientists say is science.
Alas, the April issue is not yet on the web site, but it should be available shortly. Yet another defender of the Enlightenment has fallen into the abyss. Will none stand against the forces of Darkness?!

Seriously, beyond the great "balanced cover" and the overly timid spoof (do they really think their readership needed "April Fools Day" as the last 3 words?) this is a good sign that the "guardians of enlightenment" are at least trying to pry one eye open. The phrase "science that scientists say is science" is a fond acknowledgment of the legacy of Dennis Flanagan, creator of the modern Scientific American. Mr. Flanagan is memorialized in the April issue; he died on January 14th, age 86.

I guess I need to subscribe to Sci Am now, as well as the Atlantic. Of course I don't have time to read all this stuff.

Friday, March 25, 2005

Fear, aggression and social intelligence

Experimental domestication of foxes yields clues to cognitive evolution

Fear is the enemy of understanding ...
To better understand how dogs evolved their unusual social cognitive ability, the researchers studied an experimental population of foxes that have been bred in Siberia, Russia, over the last 45 years to exhibit, over generations, increasingly friendly behavior toward humans. After dozens of generations, these foxes now behave toward people much as pet dogs do--they even bark and wag their tails at the sight of a human. Critically, these foxes were not specifically selected during breeding for their social intelligence. However, the current study found that although the foxes were not intentionally selected to be more skillful at solving social problems, they are in fact just as skillful as domestic dogs at reading human social cues. The current study therefore suggests that social intelligence can increase simply as a result of an animal becoming less fearful and aggressive towards potential social partners.
Suprising and puzzling. In 45 years it was possible to breed a very different animal, with far less aggression and fear. That animal had new and powerful capabilities.

I assume a fox generation is about 1.8 years. A human generation is about 10 times as long. So in 450 years could one go from a rather nasty, aggressive, fearful and viscious primate to an interactive, socially intelligent primate? What if the selection were not so perfect, but was rather an 20% advantage with a socially cooperative animal? How long would evolution take to change that primate -- maybe a few thousands years?

Of humans alive today, what percent are throwbacks to another era?

For children with poor social skills, what role does focal "fear management" have in social skills training?

Why so much attention to a family tragedy?

The New York Times > National > Behind Life-and-Death Fight, a Rift That Began Years Ago

Yet another story about the Shiavo family tragedy. Why did this story get so much attention? Other than the length of the debate and the legal ferocity, this was otherwise medically (somewhat) routine. In the early 90s, assuming there was a reasonable family consensus in a patient with this type of condition, it would have been quite routine to discontinue tube feeding. I seem to recall that even in catholic hospitals this not unheard of -- until the Vatican reveresed course in the mid-90s and decided tube feeding was a minimal requirement. (But one could simply wait for pneumonia to set in, and treat that without antibiotics.)

So what made this a big story? Here are my guesses. Maybe it was all of these.

1. Of course the congressional cynicism and political ploys made this a big story. It's not every day our government goes nuts. This amplified the story, but the story was already out there.

2. The drunken sailor effect. There are a bunch of angry white men who won big in a viscious hard fought election. They've pummeled and broken their feeble opponents. We lie whimpering and defeated. Sadly, that gives the victor no pleasure. They wanted a fight. So like a drunken sailor, they're weaving around looking for another battle, another way.

3. The 'use it or lose it' problem. The culture wars built up a largely right wing cultural media machine, which in turn needs more culture wars to keep it fed and energized. In a hyper-developed sophisticated economy these feedback loops are very powerful -- but they were well understood by Randolphy Hearst generations ago. The 'military industrial complex' is a good analogy. This right wing media machine is a fine honed weapon, with nothing left to shoot at. This story gave it something to do.

4. Blood and purity. This is the most intriguing part of the story. I think it may be more cultural and geographic than political. In a chunk of the nation it seems the real issue was that the wishes of a spouse dominated those of a blood kin. This may seem quite obvious to many of us, but it's not all obvious to a large chunk of America. For this group, blood is what matters. They were surprised to discover that the law says differently. This made them angry.

5. Boredom. Iraq is fading from public attention. Afghanistan is long forgotten. The tsunami is all but forgotten. The elections are over. Social security is boring.

6. Demographics. The boomers are starting to run into these situations. We're intensely interested in them.

7. All of the above.

[Update 3/27: On reflection I'll toss in the millenialist aspects of this story. I'm getting the sense that about 10% of the population is looking for evidence of direct divine intervention. For example; Ms. Shiavo speaking -- that would qualify as divine intervention in my book. For this group they see a 'test case' from God. Given that perspective their passion will be, by necessity, enormous.]

Is lossy compressed music "better" than 'real' music?

Inside the MP3 Codec - Masking Effects

I wondered about this questions while flying home, listening to my AAC (MP4) encoded music on my iPod. These are old songs and tunes, yet I seem to hear more than I used to. Certainly neither my ears or my brain are improving; entropy rules. Probably it's simply using better headphones, and and perhaps the experience of listening with more care to more music. My iPod has brought more music to my middle-aged gray days than all the toys of my youth.

And yet ...

Lossy compressed music is fundamentally quite different from non-compressed music. It sounds reasonably similar to the original music because of our brain can't fully detect all the missing elments, and because in some ways the brain "recreates" what isn't heard by the ear. This lossy compression effect is usually considered a necessary evil; an unsatisactory compromise with the storage limitations of current technologies.

But one could hypothesize that the overall experience might in some way be "superior". With the 'unheard sounds' removed, can the brain better focus on the fundamental sounds? Could the process of 'filling the gaps' be in some way 'pleasant' for the brain, a mild excercise that is stimulating and agreeable?

It's easy to imagine all kinds of interesting experiments with different compression levels, different music, functional neurocognitive imaging, etc. I hope to read about these soon ...

It would be funny if it turned out that part of the appeal of the iPod is that people like lossless encoded music better than the 'real' thing.