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"When you're in jail, a good friend will be trying to bail you out. A best friend will be in the cell next to you saying, 'Damn, that was fun'." Groucho Marx

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Science

The Science of Lines

November 20, 2008 by Jack Steiner Leave a Comment

I thought that this article about the study of queuing was interesting. Especially as it sometimes feels like I spend my life waiting in lines for one thing or another. And in case you are wondering, the answer is that you stand in line, not on line.

If you read the whole article you’ll see that they found that knowing how long you are going to wait reduces anxiety. Duh. I could have predicted that. But it still doesn’t solve the problems you sometimes encounter when stuck behind the man/woman who screams into their cellphone or whose unpleasant scent makes you want to gag.

You may not know it, but the seemingly mundane task of forming a queue at the airport, a fast-food joint or a post-Thanksgiving midnight sale is the subject of careful study by experts in the field of queuing psychology.

The findings may not always reduce wait times, but they can cut frustration and make people feel better, or even happy, about waiting in line, said Richard Larson, who has researched queuing psychology for more than two decades.

“You can change a queuing experience into a very positive experience,” said Larson, director of the Center for Engineering Systems Fundamentals at the Massachusetts Institute of Technology.

To do that, businesses where people often wait in line must realize some basic principles of queuing psychology.

Eliminating empty time, for example, makes waits seem shorter, Larson found in his research.
Visitors lining up for attractions at theme parks see this principle at work with queues that often use clever design and technology to make the line itself entertaining.

“We like to view [queues] as the first scene in the story, whatever the story of that particular attraction is,” said Joe Garlington, creative vice president of interactives at Walt Disney Imagineering, which develops Disney parks and resorts.

The line to one popular attraction at Epcot features cameras and large interactive screens that allow visitors to see themselves and play games, such as trying to burst virtual water balloons to reveal a hidden image, Garlington said.

People waiting in line for a comedy show at Walt Disney World are asked to text message jokes that may be used during the main event.

“It works as our warm-up act essentially for the show, but it also takes time while people are working through that and so it keeps them entertained while they’re waiting,” Garlington said.

“We do study the psychology, try to understand what our guests are thinking and make sure that we’re keeping them happy as they move through the lines.”

Disney employs more than 75 industrial engineers who help the company with queue management at its parks around the world, said Marilyn Waters, director of media relations at Walt Disney Imagineering.

Social justice

Fair play — or the idea of first come, first served — is at the heart of most successful queues. It’s one of the reasons most banks, airlines and fast-food restaurants have switched from several open lines that force customers to choose the line they think is moving fastest, to a single serpentine line, which guarantees first come, first served, Larson said.

Violation of fair play can lead to “queue rage.” Larson himself became interested in queuing psychology after a frustrating experience he calls the “red bike incident.”

Use the link above to read the rest.

Filed Under: Science

Medical Technology- The future is now

August 30, 2008 by Jack Steiner Leave a Comment

In my travels throughout the web I often search for interesting gadgets and inventions that will change our lives. A while back I stumbled onto MedGadget. It is an interesting site that discusses technological advances in medicine.

Here are a couple of things that caught my eye:
MIT Technology Review is reporting on new metal and polymer microgrippers that can be chemically activated to grab or cut tissue deep within the body without requiring any incisions. The scientists that developed the device envision swallowing a bunch of these and then guiding the particles using magnets to specific spots in the body for microsurgeries or doing biopsies.

From MIT Tech Review:

A gripper based on the current design could respond autonomously to chemical cues in the body. For example, it might react to the biochemicals released by infected tissue by closing around the tissue, so that pieces can be removed for analysis.
Gracias [David Gracias, biomolecular and chemical-engineering professor at JHU] and his colleagues presented the microgripper at the American Chemical Society meeting earlier this month. To demonstrate the device, they used it to grasp and maneuver tiny beads and clumps of cells in a petri dish. They have also used the device in the laboratory to perform an in vitro biopsy on a cow’s bladder. “This is the first micromachine that has been shown convincingly to do very useful things,” Gracias says. “And it does not require electric power for operation.”

The open gripper is 500 micrometers (0.05 centimeters) in diameter, and it is made of a film of copper and chromium covered with polymer. As long as the polymer stays rigid, the gripper remains open. But introducing a chemical trigger or lowering the temperature causes the polymer to soften, actuating the gripper’s fingers so that they curl inward to form a ball that is 190 micrometers wide. Another chemical signal can be used to reopen the gripper. All of the chemicals used as triggers in experiments are harmless to the body.

And the ReWalk Exoskeleton which helps paralyzed people walk again. It is made by an Israeli company called Argo Medical Technologies. I think this is just very cool.

ReWalkâ„¢, the first commercially viable upright walking assistance tool, enables wheelchair users with lower-limb disabilities to stand, walk, and even climb stairs. For potentially millions of wheelchair users.

There is a cool video you can see by clicking on this link.

Filed Under: Medicine, Science

Painful News Or News About Pain

July 31, 2008 by Jack Steiner Leave a Comment

Live Science is one of my regular reads. They usually have several articles that I find to be of interest. Here is an excerpt from an article about pain.

3. Migraines and sex go together

It may not eliminate the phrase “Not tonight, honey …” but a 2006 study found that migraine sufferers had levels of sexual desire 20 percent higher than those suffering from tension headaches. The finding suggests sexual desire and migraines might be influenced by the same brain chemical, and getting a better handle on the link could lead to better treatments, at least for the pain portion of the equation.

4. Women feel more pain

Any man who has watched a woman having a baby without using drugs would swear that women can tolerate anything. But the truth is, guys, it hurts more than you can imagine. Women have more nerve receptors than men. As an example, women have 34 nerve fibers per square centimeter of facial skin, while men average just 17. And in a 2005 study, women were found to report more pain throughout their lifetimes and, compared to men, they feel pain in more areas of their body and for longer durations.

5. Some animals don’t feel our pain

Animal research could offer clues to eventually relieve human suffering. Take the naked mole rat, a hairless and nearly blind subterranean creature. A study this year found it feels neither the pain of acid nor the sting of chili peppers. If researchers can figure out why, they might be on the road to new sorts of painkilling therapies for humans. In 2006, scientists found a pathway for the transmission of chronic pain in rats that they hope will translate into better understanding of human chronic pain. Lobsters feel no pain, even when boiled, scientists said in a 2005 report that is just one more salvo in a long-running debate.

Filed Under: Science

The brain In Love- A Scientific Study

July 25, 2008 by Jack Steiner Leave a Comment

Here is a video that I found interesting. Here is the write-up about it:

Why do we crave love so much, even to the point that we would die for it? To learn more about our very real, very physical need for romantic love, Helen Fisher and her research team took MRIs of people in love — and people who had just been dumped.

Filed Under: Love, Science

Secrets of The One Night Stand Revealed

July 11, 2008 by Jack Steiner Leave a Comment

Live Science is always good for an interesting article or two. Not unlike many other publications some of the news deals with the obvious. This story about One Night Stands touches upon that. Where else can you read that men lower their standards and women feel flattered.

“When it comes to one-night stands, men and women are poles apart. Guys just want, well, you know, while gals go to bed with the false impression of flattery and a craving for feeling desirable.

The upshot, according to new research, is great for most men and the pits for most women. The study goes further under the covers, delving into the nuances of casual sex and its potential as a Venus-and-Mars minefield.

Among the findings: Women were not hooking up in an effort to secure a long-term beau, but because they felt flattered by the overnight proposition.

They were mistaken.

As the researcher points out, men lower their standards when it comes to one-night stands, so the presumed flattery is a fantasy or close to it.

“Often [women] said things like, ‘I felt so flattered, so happy that he found me attractive. It was so nice to be wanted,'” said researcher Anne Campbell, a psychologist at Durham University in England. “What women don’t seem to see is that men drop their standards massively for a one-night stand.”

Click here to read the whole story.

Filed Under: Science, Sex

A Whale of an Invention

July 7, 2008 by Jack Steiner Leave a Comment

I thought that that this is very cool:

LONDON, United Kingdom (CNN) — Medicine has much to learn from nature. There are literally millions of medical compounds out there that could cure diseases, help improve treatment and even protect us from some types of bacteria.cientists have been tapping into nature’s resources for inspiration on how to treat humans.

Humpback whales, sea cucumbers and Australian red algae are just a few of the species leading the way in modern medicine.

The humpback whale has a design within its heart that could help save the lives of many patients suffering from heart disease.

With a heart that can pump six bath tubs of blood around a circulation system that is 4,500 times as complex as our own, and in only three heartbeats a minute, it has fascinated scientists as to how it manages this feat.

But it was while studying how the whale’s heart is able to do this that Dr Jorge Reynolds– (who placed the first external pacemaker in the body of a priest who survived for an additional 17 years) discovered nano-sized ‘wires’. These wires allow electrical signals to stimulate the heartbeats even through masses of non-conductive blubber.

This discovery could be the key to replacing the traditional pacemaker, scientists say. Instead of having to install a battery-powered pacemaker the whale ‘wires’ could be used to stimulate heart beats.

Whale ‘wires’ could save the extra bouts of surgery, which are currently needed to replace the batteries in pacemakers.

It doesn’t end there. There’s also the added bonus of saving money. With the worldwide market for pacemakers expected to reach $3.7 billion by 2010, this technology, which costs only a few cents to make, could replace pacemakers and save billions.

At Ohio’s Cleveland West Reserve University Jeffrey Capadona has pioneered the creation of a material that could help treat Parkinson’s disease, stroke and spinal chord injuries.

This time the inspiration was the humble sea cucumber, whose skin can change from a rigid to flexible state with ease.

Capadona argues that tiny electrodes implanted into the brain are sometimes used to treat Parkinson’s disease, stroke and spinal chord injuries. But they can become less effective over time as the body creates scar tissue around the hard implant.

Using this new material, which was based on the skin of sea cucumber, could improve treatment as the material can become less rigid and prolong its effectiveness.

Even red algae in Australia have provided inspiration to scientists who now believe they could help control some diseases.

Researchers from the University of New South Wales, Australia, discovered that the red algae found just off the coast was free from biofilms– a congregation of bacteria that are the cause of 70 percent of all human infections.

Read the whole thing.

Filed Under: Medicine, Science

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