Archive for January, 2007

Daydreaming is brain’s default setting, study finds

Sunday, January 21st, 2007

WASHINGTON (Reuters) — Daydreaming seems to be the default setting of the human mind and certain brain regions are devoted to it, U.S. researchers reported Friday.

When people are given a specific task to do, they focus on that task but then other brain regions get busy during down time, the researchers report in Friday’s issue of the journal Science.

“There is this network of regions that always seems to be active when you don’t give people something to do,” psychologist Malia Mason of Harvard Medical School and Massachusetts General Hospital said in a telephone interview.

When Mason asked people what was happening during this down time, the answer was clear.

“It’s daydreaming,” she said. “But I find that the vast majority of time, people aren’t having fanciful thoughts. People are thinking about what they have to do later today.”

Her team has chosen to call it stimulus-independent thought or mind wandering.

Neurologists and psychologists have debated what goes on when people are not specifically thinking about or doing something, and there had been general agreement that the mind does not simply go blank.

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Oil and Ethics Mix in Democrat Reforms

Friday, January 19th, 2007

Democrats in the House wrapped up a 100 hour legislative blitz (the NYT says it was only 42 hours – we’re being short-changed already!) with a bill that would slash oil industry tax breaks and invest the estimated $14 billion saved revenue into energy conservation and alternative fuel research. Next up on House Speaker’s legislative agenda, an all-out assault on energy dependence and global warming. Over in the Senate, Dems passed the new ethics and lobbying bill, described by proponents as the most significant ethics reform since Watergate, by 96-2. The bill is similar in tone to one passed earlier this month in the House but, reports the LAT, other parts of the House Dems blitz, notably the energy bill, are likely to meet stiff resistance when it reaches the Senate. For the moment though, senators are still trying to get their heads around the Bush administration’s new secret surveillance policy. Attorney General, Alberto Gonzales wasn’t helping them any more than he had to. Talking of tight-lipped, the WPost features a profile of Vice President, Dick Cheney. Writes David Ignatius, “To outside observers, Cheney has been the political equivalent of a black hole — exerting a powerful but mostly invisible force on decisions.”

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NASA Spacecraft En Route To Pluto Prepares For Jupiter Encounter

Friday, January 19th, 2007

Science Daily NASA’s New Horizons spacecraft is on the doorstep of the solar system’s largest planet. The spacecraft will study and swing past Jupiter, increasing speed on its voyage toward Pluto, the Kuiper Belt and beyond.

The fastest spacecraft ever launched, New Horizons will make its closest pass to Jupiter on Feb. 28, 2007. Jupiter’s gravity will accelerate New Horizons away from the sun by an additional 9,000 miles per hour, pushing it past 52,000 mph and hurling it toward a pass through the Pluto system in July 2015.

“Our highest priority is to get the spacecraft safely through the gravity assist and on its way to Pluto,” says New Horizons Principal Investigator Alan Stern, of the Southwest Research Institute, Boulder, Colo. “We also have an incredible opportunity to conduct a real-world encounter stress test to wring out our procedures and techniques, and to collect some valuable science data.”

The New Horizons mission team will use the flyby to put the probe’s systems and seven science instruments through the paces of more than 700 observations of Jupiter and its four largest moons. The planned observations from January through June include scans of Jupiter’s turbulent, stormy atmosphere; a detailed survey of its ring system; and a detailed study of Jupiter’s moons.

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Neural Bottleneck Found That Thwarts Multi-tasking

Friday, January 19th, 2007

Science Daily Many people think they can safely drive while talking on their cell phones. Vanderbilt neuroscientists Paul E. Dux and René Marois have found that when it comes to handling two things at once, your brain, while fast, isn’t that fast.

“Why is it that with our incredibly complex and sophisticated brain, with 100 billion neurons processing information at rates of up to a thousand times a second, we still have such a crippling inability to do two tasks at once?” Marois, associate professor of Psychology, asked. “For example, what is it about our brain that gives us such a hard time at being able to drive and talk on a cell phone simultaneously?”

Researchers have long thought that a central “bottleneck” exists in the brain that prevents us from doing two things at once. Dux and Marois are the first to identify the regions of the brain responsible for this bottleneck, by examining patterns of neural activity over time. Their results were published in the Dec. 21 issue of Neuron.

“In our everyday lives, we seem to complete so many cognitive tasks effortlessly. However, we experience severe limitations when we try to do even two simple tasks at once, such as pressing a button when a visual stimulus appears and saying a word when a sound is presented. This is known as dual-task interference,” Dux, a postdoctoral research associate in the Department of Psychology, said. “We were interested in trying to understand these limitations and in finding where in the brain this bottleneck might be taking place.”

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Senate Passes Vast Ethics Overhaul

Friday, January 19th, 2007

WASHINGTON, Jan. 18 — The Senate on Thursday overwhelmingly passed sweeping changes to ethics and lobbying rules, overcoming bipartisan reluctance to ban many of the favors that lobbyists do for lawmakers and to illuminate the shadowy legislative practice of earmarking money for special projects.

The Senate’s action makes the start of the 110th Congress a watershed moment in the history of K Street and Capitol Hill. Interpreting the results of the Nov. 7 election as a reaction to corruption scandals when Congress was under Republican control, the Senate has joined the House in adopting broad new rules that go beyond the proposals Republicans introduced last year, the ones that Democrats campaigned on, or the extensive changes House Democrats recently passed.

The measure passed around 9 p.m. by a vote of 96 to 2. Senators Orrin Hatch of Utah and Tom Coburn of Oklahoma, both Republicans, were the only members to vote against the bill.

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– This article is from the NY Times and they insist that folks have an ID and a PW in order to read their stuff. You can get these for free just by signing up. However, recently, a friend of mine suggested the website bugmenot.com :arrow: as an alternative to having to do these annoying sign ups. Check it out. Thx Bruce S. for the tip.

Huge storms sweep northern Europe

Friday, January 19th, 2007

Global Warming and Global Climate Change. People expect to be able to go and look at their thermometers and see a gradual creeping up of the indicator.  Well, I don’t think it is going to happen so neatly as that. 

– Weather events are systems and systems are a mix of stability and chaos.  The more complex the system, the the harder it is to untangle all the factors that feed into its states.  Weather is a very complex system and as we continue to pump more and more CO2 and Methane into the atmosphere, I expects the system will grow unstable at its current resting point and as it seeks toward a new equilibrium, it will exhibit instability. 

– Weather events will exhibit wilder and wilder swings as the system seeks to incorporate the greenhouse gases we’re adding. And  I believe this instability will continue so long as we keep changing the composition of the atmosphere.  And, beneath the surface fluctuations, the average temperatures will, indeed, creep up in most places.

– Here in New Zealand this summer, it has been unusually cool.   In fact, Wellington, the capital, experienced the coldest December on record in 2006.  In the Pacific Northwest of the US, where I normally live, they’ve had an absolutely dismal winter this year.  Record floods, huge wind storms and snow on the ground for  a week or more in an area that often sees winters without any snow.  The US’s mid-west is in the vise of a huge deep-freeze and a month or so back, New York City was having record-breaking tee-shirt weather one day and snow storms the very next day. Now we’re reading about a huge storm pounding Northern Europe. 

– Yes, I know weather is variable and we’ve seen all of this before.  It is the larger patterns I’m referring to here – the trends emerging from the noise.  Keep watching.

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At least 25 people have been killed as violent storms lashed northern Europe, causing travel chaos across the region.

Britain was the worst hit with nine people killed as rain and gusts of up to 99mph (159km/h) swept the country.

Hurricane-force winds battering Germany have claimed at least seven lives. The other deaths were reported in France, the Czech Republic and the Netherlands.

The severe weather has forced hundreds of flight, rail and ferry cancellations and prompted road and school closures.

Meteorologists at London’s Met Office said the winds reached “severe gale force” as they crossed Britain and were the highest recorded since January 1990.

They warned the weather system would intensify as it moved east across the continent – with Denmark, the Netherlands and Germany expected to be worst hit overnight.

Winds of almost 105mph (170km/h) were recorded late on Thursday in Germany, prompting the national rail company to suspend all its services, leaving passengers stranded.

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Radicals vs. moderates: British Muslims at crossroads

Friday, January 19th, 2007

DUBLIN, Ireland (CNN) — At a recent debate over the battle for Islamic ideals in England, a British-born Muslim stood before the crowd and said Prophet Mohammed’s message to nonbelievers is: “I come to slaughter all of you.”

“We are the Muslims,” said Omar Brooks, an extremist also known as Abu Izzadeen. “We drink the blood of the enemy, and we can face them anywhere. That is Islam and that is jihad.”

Anjem Choudary, the public face of Islamist extremism in Britain, added that Muslims have no choice but to take the fight to the West.

“What are Muslims supposed to do when they are being killed in the streets in Afghanistan and Baghdad and Palestine? Do they not have the same rights to defend themselves? In war, people die. People don’t make love; they kill each other,” he said. (Audio slide show: Preying on Britain’s young Muslims)

But in the same debate, held on the prestigious grounds of Dublin’s Trinity College in October, many people in the crowd objected.

“These people, ladies and gentleman, have a good look at them. They actually believe if you kill women and children, you will go to heaven,” said one young Muslim who waved his finger at the radicals.

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Fury at Australia cleric comments

Friday, January 19th, 2007

– Two stories out recently about radial statements being made by Muslim clerics point up a growing and critical problem. As we continue to fill the world, our cultures and religions are pressing against each other with ever more pressure. This is a volatile situation that grows ever more dangerous. Our cultures and religions need to be ever more tolerant of each other if we are to avoid disaster as we try to muddle our way through the coming historical bottlenecks.

– Stories, like the following, are clear calls for moderate Muslims to control the statements of their more radical brethren. Indeed, be it Muslim, Christian or any religion, I would advocate the same.

– To get the drift of why a story like this might incense Australians so badly, consider that they are 20 million and they are just south of Indonesia, which is the most populous Muslim country in the world – and a very poor one, besides. Consider a statement like the following: “Muslim Australians had more rights to the country than white Australians whose ancestors arrived as convicts.

– Below, is the first of the two stories. The next can be found in the next post here.

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The Australian government has condemned a Muslim cleric for making offensive comments in videotaped lectures.

Sheikh Feiz Mohammed, head of the Global Islamic Youth Centre in Sydney, urged children to become martyrs for Islam and mocked Jewish people as pigs.

Police are said to be investigating the tapes, which were exposed in a British TV documentary earlier this week.

Top Australian Islamic cleric Sheikh Hilali also sparked controversy, with remarks on women and white Australians.

Sheikh Feiz Mohammed, who has spent the past year living in Lebanon, talks on the controversial videotapes of his desire for children to be offered “as soldiers defending Islam”.

“Teach them this,” he says, “that there is nothing more beloved to me than wanting to die as a Muhajid.

“Put in their soft, tender heart the zeal of jihad and the love of martyrdom.”

He also ridicules Jewish people as pigs and makes snorting noises, saying they will go to hell.

His comments were shown on a British television documentary called Undercover Mosque, which says it found children selling Islamic tapes in a car park behind a UK mosque.

More… :arrow:

China shoots down a satellite

Friday, January 19th, 2007

– This is an interesting story because it shows that the geopolitical balance of power is shifting.  China, for some years now, has been pouring much of its trade surplus money into upgrading its military.  The US has largely ‘owned’ the high ground of space and that’s a potent factor in any potential future conflict.  China’s new-found ability to bring satellites down, shows that its ability as a first rate military power is growing and that the US advantage in space is eroding.  This blog makes no judgments of on the rightness or wrongness of these changes – indeed, there is none – change has always and will always happen.   But, large shifts of power in the world have seldom been accomplished smoothly and for those attuned to the Perfect Storm Hypothesis, these changes are food for thought.

– I’ve pulled stories on this from five different publications and they are all here: , , , and

– The text from below is from the BBC but I could have chosen any of the sources.   Altogether, they make for a thoughtful read. 

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Concern over China’s missile test (BBC News)

China is facing international criticism over a weapons test it reportedly carried out in space last week. Japan has expressed concern, as have the US and Australia.

It is thought that the Chinese used a ground-based medium-range ballistic missile to destroy a weather satellite that had been launched in 1999.

Correspondents say this is the first known satellite intercept test for more than 20 years. China’s foreign ministry refused to confirm or deny the report.

While the technology is not new, it does underline the growing capabilities of China’s armed forces, according to the BBC’s Dan Griffiths in Beijing.

More…

Dawkins, Darwinism, Reductionism, Emergent Properties and Causality

Wednesday, January 17th, 2007

A friend of mine sent me an article today to read. It is an excellent article by Richard Dawkins – well worth reading. It is called What Good Is Religion and you will find it here:

If the possible intersection of Dawkins, Darwinism, Reductionism, Emergent Properties and Causality intrigues you, then I encourage you to follow the arrow link, above, now and read Dawkins’ piece. It’s not too long – about four pages worth. Then come back here and press on with the rest of this post because this is a commentary on his article.

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An excellent and interesting read. Dawkins has certainly become a foremost spokesperson for what one might term ‘hard-Darwinism’. His explanation of why religion survives – that it goes along for the ride when nature selects children who automatically believe the wisdom of their elders, makes a lot of sense. Or, in other words – it sounds good. But, let’s be cautious here because there is also a deep truth around that for any given set of facts or observations, there can be many equally plausible sounding explanations.

But, in general, I liked the article. If I had quibbles, they would be two:

At one point, Dawkins quotes Steven Pinker to buttress a point he’s trying to make:

…it only raises the question of why a mind would evolve to find comfort in beliefs it can plainly see are false. A freezing person finds no comfort in believing he is warm; a person face-to-face with a lion is not put at ease by the conviction that it is a rabbit.

This is a bogus example, to me, because it only works so long as you stay within the domain it provides for you. But that domain is unrealistic. Our experiences are made of of both the concrete and the abstract whereas his example involves just concrete observables. And our minds are certainly capable of evolving to find comforts in abstractions which we are unlikely to be able to prove false. The very question of God’s existence is, I believe, not provable one way or the other so it is an abstraction and an unprovable one. Now if people prove fitter, as they complete to survive, because they’ve chosen to embrace this abstraction, then surely the tendency to embrace it will be conserved in their progeny.

My second quibble is that Dawkins seems to be an unrepentant reductionist. In the last 20 years, science has changed from being utterly dominated by reductionist thinking to a having a new and general perception that reductionism and complexity/emergent properties are just two equally valid and alternative ways of looking at the world around us. Whereas one studies how to take it apart, the other looks into how it assembles together.

To wit, when Dawkins goes on about chicken pecking orders, he disparages stable groupings of chickens as good Darwinian subjects because they are a group-level phenomenon. But, isn’t a stable group of chickens, as he describes them, an emergent property and aren’t emergent properties conserved? If the individual tendencies of chickens to respect stronger chickens and to dominate weaker chickens aggregates into an emergent property that we call a Stable Group of Chickens and that stable group yields more eggs and thus contributes more genes to the pool, then why should we discriminate against it? He wants to reduce everything down to Darwinian minimums but emergent properties all up and down the scale of biological complexity are conserved.

Why should this tendency towards a reductionist Darwinism have been conserved in Dawkins’ brain?

Well, perhaps the problem with run-away reductionism is that it wants to reduce nature’s causality to the kind of causality we humans can understand easily which is basically sequential logic like if A then B. But, nature has no such limits or notions. Its causality flows freely – be it down sequentially logical chains of cause and effect or up through emergent properties and everywhere in between through every form of parallelism or sequentiality. This natural ‘everything is happening at once and affecting most everything else as it does’ way of being, which nature manifests, is extremely difficult for humans to comprehend, describe or quantify so we are constantly coming up with tremendous oversimplifications and then reifying them into pictures of how things work that we feel are good – because we can understand them. Dawkins would like it to be simple – with one explanation to dominate them all. But nature doesn’t care what Dawkins wants and goes where it will. As difficult as it may be, we need explanations that model nature – rather than reflect our shortcomings.

– research thanks to Alan T.