Clipmarks | wildcat's science collection

The Physiology And Psychology Of Voting

Thu, 02 Oct 2008 14:04:16 GMT

clipped by: wildcat
clipper's remarks: The researchers used a multiple regression analysis to compare the effects of change in skin conductance levels in response to threatening images, gender, age, education, and income on support for socially “protective” policies such as the ones listed above. The only two statistically significant effects were those of education (less education translated into more support for conservative policies) and skin conductance. That in itself means that -- within the confines of this study -- physiology trumps gender, age and income, traditionally considered highly relevant causal factors in politics by social scientists. Moreover, the regression coefficient associated with skin conductance was more than 56 times that of education! !!!

Clip Source: www.scientificblogging.com

In case you haven’t noticed, election season is upon us! Ok, it has been upon us for almost two years, but never mind that. Pollsters are busy trying to determine why people might be voting for one candidate or another, with special attention being paid to the so-called undecided voters, on whose last-minute whim the fate of the nation -- and the world -- seems to hinge.

Two recent studies, however, provide much food for thought about why people vote one way or the other, and about the reasons they give to themselves and others. A paper by Douglas Oxley and collaborators in Science (19 September) investigated the effect of physiological reactions to a perceived threat on people’s political opinions

Oxley and colleagues discovered that people who react physiologically (as measured by changes in their skin conductance) to sudden noises or to threatening images are much more likely to support conservative issues like gun control, the war in Iraq, restrictions in immigration and so forth.

Tags: voting, education, elections, physiology, psychology

Richard Dawkins' jaw-dropping talk on our bizarre universe

Mon, 22 Sep 2008 09:41:57 GMT

clipped by: wildcat
clipper's remarks: Richard Dawkins discusses the question of limits on human understanding. As a species we evolved to cope with the world within a particular range of physical dimensions. These determine our common sense view of the world. How far can the plasticity of our brains transcend this limitation?

Clip Source: ovablastic.blogspot.com

[Video]

Tags: richard dawkins, universe, understanding

Genetic 'telepathy'? A bizarre new property of DNA

Tue, 29 Jan 2008 11:47:42 GMT

clipped by: wildcat
clipper's remarks: life stranger than sci fi

Clip Source: physorg.com

Scientists are reporting evidence that intact, double-stranded DNA has the “amazing” ability to recognize similarities in other DNA strands from a distance. And then like friends with similar interests, the bits of genetic material hangout or congregate together. The recognition — of similar sequences in DNA’s chemical subunits — occurs in a way once regarded as impossible, the researchers suggest in a study scheduled for the Jan. 31 issue of ACS’ Journal of Physical Chemistry B.

This recognition may help increase the accuracy and efficiency of the homologous recombination of genes — a process responsible for DNA repair, evolution, and genetic diversity. The new findings thus may shed light on ways to avoid recombination errors, which underpin cancer, aging, and other health problems.

“Amazingly, the forces responsible for the sequence recognition can reach across more than one nanometer of water separating the surfaces of the nearest neighbor DNA,” said the authors.

Tags: dna, telepathy, recognition at a distance

Say wow! the flying jellyfish

Thu, 04 Sep 2008 11:49:00 GMT

clipped by: wildcat

Clip Source: airshipworld.blogspot.com

Last year Festo surprised everyone with their amazing prototype of the Air_ray a manta ray that swims through the air and the b-IONIC Airfish. We reported on it in a great post which was titled "Airships are just like fish in the sky" Festo is currently at the Hannover Messe 2008 and they brought an just as stunning new project with them. We present the Air Jelly, a jellyfish that swims through the air. Currently the information about the AirJelly is only available in German at the Festo Website but the pictures speak for them self, of course we also provide you with a direct link to the autotranslated Page in English about the AirJelly
The Video on the Website of Festo did not work for me so I uploaded it to YouTube just in case you can not see the "Flim" on the Festo website:

Tags: robotics, jellyfish

Animal Intelligence and the Evolution of the Human Mind

Wed, 03 Sep 2008 11:50:26 GMT

clipped by: wildcat
clipper's remarks: Subtle refinements in brain architecture, rather than large-scale alterations, make us smarter than other animals

Clip Source: www.sciam.com

The human brain lacks conspicuous characteristics—such as relative or absolute size—that might account for humans’ superior intellect.

Researchers have found some clues to humanity’s aptitude on a smaller scale, such as more neurons in our brain’s outermost layer.

Human intelligence may be best likened to an upgrade of the cognitive capacities of nonhuman primates rather than an exceptionally advanced form of cognition.

As far as we know, no dog can compose music, no dolphin can speak in rhymes, and no parrot can solve equations with two unknowns. Only humans can perform such intellectual feats, presumably because we are smarter than all other animal species—at least by our own definition of intelligence.

Of course, intelligence must emerge from the workings of the three-pound mass of wetware packed inside our skulls

Thus, researchers have tried to identify unique features of the human brain that could account for our superior intellectual abilities

Tags: brain, mind, evolution, intelligence

Gene linked to commitment-phobia

Tue, 02 Sep 2008 17:40:08 GMT

clipped by: wildcat
clipper's remarks: commitment-phobia, everybody has it..

Clip Source: www.sciencenews.org

Men with a common gene variation for "bonding" hormone report more marital strife

There’s news for women who want a man who bonds instead of a James Bond: Scientists have identified a common genetic variation that appears to weaken a man’s ability to emotionally attach to one partner.

The study, to appear in the Proceedings of the National Academy of Sciences, is the first to try to examine whether a hormone that encourages monogamy in animals plays a similar role in male humans. Before getting ideas about a DNA-fidelity test, though, women should consider that the study wasn’t designed to determine how much — or even whether — the gene in question is responsible for monogamy in humans.

“We can’t with any accuracy predict effects on behavior,” says Hasse Walum of the Karolinska Institute in Stockholm. “A lot of different things determine how happy you will be in a relationship.”

But women can now wonder, “What about his vasopressin 1a receptor subtype?”

Tags: genetics, commitment-phobia

Telepresence Robot TiLR at the X PRIZE Foundation

Sun, 31 Aug 2008 13:21:36 GMT

clipped by: wildcat
clipper's remarks: revolutionary technology

Clip Source: www.prweb.com

RoboDynamics is an innovative robotics company that develops enterprise Robotic Telepresence platforms such as TiLR. By using TiLR the X Prize Foundation is shifting the paradigm of face to face communications whereby a person can now transport himself instantly to their offices without actually being at their office. This new mode of collaboration will dramatically reduce downtime, increase productivity, and eliminate travel. The robot is installed at the Google Lunar X Prize offices within the X Prize Foundation.

Robotic Telepresence provides the ability to instantly transport a person to a remote location without the person actually going there. Robotic Telepresence is similar to video conferencing in that there is a real time audio/video link, but also provides the means for the user to commandeer the robot and move about the remote location as though the user was actually there.

For more information please visit www.robodynamics.com

Tags: telepresence, robot, tilr, x prize foundation

What's wrong with science as religion

Fri, 01 Aug 2008 12:44:19 GMT

clipped by: wildcat
clipper's remarks: "Piercing a Communion wafer with a nail and throwing it in the garbage, as one crusading biologist recently did, does science no favors"

Clip Source: www.salon.com

Jul. 31, 2008 | PZ Myers is a true believer, a science crusader with the singled-minded enthusiasm of a televangelist. A biologist at the University of Minnesota at Morris and a columnist for Seed magazine, Myers has earned notoriety with his blog, Pharyngula, in which he reports on new developments in biology and indiscriminately excoriates those he views as hostile to science, a pantheon of straw men and women that includes theologians, journalists and churchgoers. He is Richard Dawkins without the fame or felicitous prose style.

Religion is dangerous, he wrote; it breeds hatred and idiocy. It is our job to advance humanity's knowledge "by winnowing out the errors of past generations and finding deeper understanding of reality." There is no wisdom in our dogmas, Myers warned, just "self-satisfied ignorance." We find truth only in science, looking at the world "with fresh eyes and a questioning mind."

Tags: science, vs, religion

The Secrets of Storytelling: Why We Love a Good Yarn

Thu, 31 Jul 2008 16:24:50 GMT

clipped by: wildcat

Clip Source: www.sciam.com

Storytelling is a human universal, and common themes appear in tales throughout history and all over the the world.

These characteristics of stories, and our natural affinity toward them, reveal clues about our evolutionary history and the roots of emotion and empathy in the mind.

By studying narrative’s power to influence beliefs, researchers are discovering how we analyze information and accept new ideas.

Popular tales do far more than entertain, however. Psychologists and neuroscientists have recently become fascinated by the human predilection for storytelling. Why does our brain seem to be wired to enjoy stories? And how do the emotional and cognitive effects of a narrative influence our beliefs and real-world decisions?

Storytelling is one of the few human traits that are truly universal across culture and through all of known history. Anthropologists find evidence of folktales everywhere in ancient cultures, written in Sanskrit, Latin, Greek, Chinese, Egyptian and Sumerian

Tags: storytelling, human universals

Is There a Laziness Gene?

Wed, 30 Jul 2008 14:59:57 GMT

clipped by: wildcat

Clip Source: www.time.com

Have you ever wondered why you can't get off the couch and exercise — despite paying for an expensive gym membership, despite your New Year's resolutions, even despite the doctor's scolding at your last check-up? Turns out that your inertia may be coded right into your genes.

Based on some intriguing, preliminary studies in animals, J. Timothy Lightfoot, a kinesiologist, and his team at University of North Carolina, Charlotte, suggest that genetics may indeed predispose some of us for sloth. Using mice specially bred and selected according to their activity levels, Lightfoot identified 20 different genomic locations that work in tandem to influence activity levels in mice — specifically, how far the animals will run

genes may affect either the way muscles work — perhaps causing them to use energy more efficiently and preventing fatigue — or some higher-order biochemical circuit in the brain, such as levels of the neurotransmitters dopamine or serotonin

Tags: laziness, genetics

Please Help Scientists By Participating In National Orgasm Day July 31st

Wed, 30 Jul 2008 19:05:04 GMT

clipped by: wildcat
clipper's remarks: So, Britain, privatize your National Health Services and cut the welfare - tell those people in Manchester the steel industry is never coming back so they should get other jobs. Then you could put money toward science studies that really count, like this.

After all, this is not a gender-specific issue. Having British women famous for lack of orgasms really doesn't make the men there look all that great either.

Clip Source: www.scientificblogging.com

I'm taking a moment away from crafting "Journey To The Center Of The Uterus", my opus on reproduction and culture, to discuss something of equal import - namely, orgasms.

It will shock you to know this, but nearly 50% of British women don't have orgasms. Are they frigid? No, not at all, as my 1999 layover at Heathrow can attest. Science funding is the issue, as we shall see.

As we have discussed in articles like The Science of Orgasms and Would Female Orgasms Kill Men?, (1) orgasms are tricky business but scientists know what they are doing. Fewer scientists means fewer orgasms. Britain is in the throes of a science funding meltdown so the problem for British women will only get worse. With fewer scientists there can be fewer studies on important stuff like this.

What are we talking about?

To celebrate National Orgasm Day on July 31, concerned groups in the UK have been conducting a survey on female orgasms - and the results are not good

Tags: humor, britain

Toward a Type 1 civilization

Wed, 30 Jul 2008 18:59:25 GMT

clipped by: wildcat
clipper's remarks: Along with energy policy, political and economic systems must also evolve.
Michael Shermer, one of the most trusted voices in todays world.

Clip Source: www.latimes.com

By Michael Shermer
July 22, 2008

Our civilization is fast approaching a tipping point. Humans will need to make the transition from nonrenewable fossil fuels as the primary source of our energy to renewable energy sources that will allow us to flourish into the future. Failure to make that transformation will doom us to the endless political machinations and economic conflicts that have plagued civilization for the last half-millennium.

We need new technologies to be sure, but without evolved political and economic systems, we cannot become what we must. And what is that? A Type 1 civilization. Let me explain.

Type 1 can harness all of the energy of its home planet; Type 2 can harvest all of the power of its sun; and Type 3 can master the energy from its entire galaxy.

Based on our energy efficiency at the time, in 1973 the astronomer Carl Sagan estimated that Earth represented a Type 0.7 civilization on a Type 0 to Type 1 scale. (More current assessments put us at 0.72.)

Tags: michael shermer, civilization, transformation

The Coming Death Shortage

Tue, 29 Jul 2008 11:33:49 GMT

clipped by: wildcat
clipper's remarks: "Why the longevity boom will make us sorry to be alive" a must read.
Though I fail to agree with many of the premises of this article, the critical views it presents are important and the issues need be taken into consideration seriously

Clip Source: www.theatlantic.com

Stem-cell banks, telomerase amplifiers, somatic gene therapy—the list of potential longevity treatments incubating in laboratories is startling. Three years ago a multi-institutional scientific team led by Aubrey de Grey, a theoretical geneticist at Cambridge University, argued in a widely noted paper that the first steps toward "engineered negligible senescence"—a rough-and-ready version of immortality—would have "a good chance of success in mice within ten years." The same techniques, De Grey says, should be ready for human beings a decade or so later. "In ten years we'll have a pill that will give you twenty years," says Leonard Guarente, a professor of biology at MIT. "And then there'll be another pill after that. The first hundred-and-fifty-year-old may have already been born."

The critical issue, in Goldman's view, will be not the costs per se but determining who will pay them. "We're going to have a very public debate about whether this will be covered by insurance," he says

Tags: longevity, death, economy, future, public debate

How one day we may all be eternally young

Fri, 25 Jul 2008 12:44:09 GMT

clipped by: wildcat
clipper's remarks: "We found a normal developmental programme that works in young animals, but becomes unbalanced as the worm gets older. It accounts for the lion's share of molecular differences between young and old worms." If ageing is not a cost of unavoidable chemistry, but is instead driven by changes in regulatory genes, the ageing process may not be inevitable, he added.

Clip Source: www.independent.co.uk

Growing old may not be mandatory after all. Failing eyesight, loosened teeth and greying hair could be driven by regulatory genes that determine when it is time to shuffle off our mortal coil, rather than being indicators of the ravages of age.

American scientists have challenged the conventional view that ageing is caused by wear and tear – like rust on an old car. Instead, they suggest specific genetic instructions drive the process. If they are right, science might one day find ways of switching the signals off and halting or even reversing ageing.

Researchers at Stanford University Medical Centre raised questions about the conventional theory of ageing on the basis of observations in the animal world. Stuart Kim, a professor of developmental biology, said: "Everyone has assumed we age by rust. But how do you explain animals that don't age?" Some tortoises lay eggs at the age of 100, there are whales that live to be 200 and clams that make it past 400 years, he said.

Tags: aging, genetics, biology

A New Take on Warping Spacetime

Fri, 25 Jul 2008 11:18:39 GMT

clipped by: wildcat
clipper's remarks: "I wouldn’t expect a warp drive breakthrough any time soon, but laying a theoretical basis for a technology has to be step one."

Clip Source: www.centauri-dreams.org

Miguel Alcubierre’s 1994 paper, which demonstrated that it would be possible — within the context of General Relativity — to envision a space drive that could get you to your destination in a time shorter than it would take light itself to get there. Contracting space in front of the craft while inflating it behind, the drive is permissible because the starship itself would not be going faster than light. Rather, the space around it would be moving in such a way as to make the trip possible.

And that’s the key — the speed of light stricture does not apply to spacetime itself. Can we learn how to generate a region of expanding spacetime and one of contracting spacetime?

The authors then turn to supersymmetry — the theory that all particles have an associated superparticle with a differing spin — to explore the question

they consider the cosmological constant in terms of higher dimensions, relating these first to the work of Theodore Kaluza, who suggested a fifth dimension in 1919

Tags: warp, space, time, general relativity, supersymmetry