Meet Wilma: The First Neanderthal Model

September 19, 2008

wilma
“Wilma” was named after the character on “The Flintstones”, history’s most famous Neanderthal family

Okay, she’s obviously no Kate Moss but Wilma has already won over the hearts of the scientific community as for the first time a reconstruction of a Neanderthal’s face has been completed based on DNA evidence. National Geographic explains:

Artists and scientists created Wilma (shown in a photo released yesterday) using analysis of DNA from 43,000-year-old bones that had been cannibalized. Announced in October 2007, the findings had suggested that at least some Neanderthals would have had red hair, pale skin, and possibly freckles.

Created for an October 2008 National Geographic magazine article, Wilma has a skeleton made from replicas of pelvis and skull bones from Neanderthal females. Copies of male Neanderthal bones—resized to female dimensions—filled in the gaps.


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Walk into the Light – Science and the Near-Death Experience

September 14, 2008

near
The tunnel of light is the most common association with those who experience near-death

The question of what happens to us when we die has spawned books, songs, plays, and of course, religions. Our mortality has been a central concern of our daily existence throughout the history of human civilization. We understand that it is an end of sorts, but what kind of end? And what happens afterwards? There is no direct proof of anyone returning from the dead (Jesus’ death and resurrection rests on the gospels) and reporting to us what is on the other side. But we do have many instances of what is known as Near-Death Experience (NDE).

First popularized by Raymond Moody in his 1975 book Life After Life, NDE refers to both the physical and spiritual effects of impending death. The most common experiences include feelings of tranquility, warmth, and the presence of the proverbial “tunnel of light”. Some go as far as to suggest that they are drawn into the tunnel of light. These sensations are taken by many as proof of an afterlife.

Science is now trying to figure out what causes these feelings and what they really are and why so many people (at one count 8 million alone in the USA) experience NDE. One study group has launched AWARE (AWAreness during REsuscitation) to look at patients who suffer cardiac arrest.

“Contrary to popular perception, death is not a specific moment,” said leader of the study Dr. Sam Parnia of the University of Southampton in the U.K. “It is a process that begins when the heart stops beating, the lungs stop working and the brain ceases functioning — a medical condition termed cardiac arrest, which from a biological viewpoint is synonymous with clinical death.”

Previous research suggests about 10 to 20 percent of people who live through cardiac arrest report lucid, well-structured thought processes, reasoning, memories and sometimes detailed recall of events during their encounter with death.

One study found that people who reported peaceful feelings, bright light and out-of-body experiences during a brush with death are more likely to have had difficulty separating sleep from wakefulness in their everyday lives. Both before and after their near-death experiences, these people often have symptoms of the rapid-eye movement (REM) state of sleep while awake.

The AWARE researchers want to find out what happens to the brain when a person’s body has started to shut down, whether it is possible for people to see and hear during cardiac arrest, and what’s going on during out of body experiences.


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DNA – Not Just For Lab Coat Wearing Nerds Anymore!

September 11, 2008

dna
Our DNA keeps telling us more and more about ourselves

In the 1983 movie Trading Places starring Eddie Murphy and Dan Akroyd, there’s a great scene in which the characters played by Ralph Bellamy and Don Ameche get into a discussion about the age old question of what influences an individual more: heredity or environment. The two men decide to conduct an experiment using Murphy’s and Akroyd’s characters and the plot is set.

Even though this film was made only a quarter century ago, the contention of the debate seems a bit archaic in light of the exponential understanding we now have in regards to genetics. There was a time when suggestions that a person acted the way that they did because of their ancestry would be laughed at as “old wives’ tales”. Yet now we know better. Researchers keep isolating genes regulating all sorts of things from our health to our intelligence to our psychological state on an almost weekly basis. Our genes seem to be our lives as an open book.

Our genetic makeup is now even being marketed for our love lives. A company called GenePartner wants to match potential couples together according to how complementary their genetic makeup is with one another. This Swiss firm wants to:

evaluate singles and couples according to the potential union of their HLA genes, which help regulate immune response.

People may naturally be attracted to mates with HLA profiles different from their own, ostensibly guaranteeing the hybrid vigor of their offspring’s immune systems — and also providing a spark that will last through good times and bad.

“Proper age, similar life goals and ideas, education levels — all of these things have to fit. And on top of that, you need to be biologically compatible,” said Tamara Brown, managing director of GenePartner.

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I’m dying for a drink, but why?

September 10, 2008

vodka/soda
very, very tempting……

It’s Friday afternoon around 4 pm. Your work for the week is done (maybe) and you’re ready to call it quits. You know exactly what you’re gonna do once it’s time to head out of the office. You’re going downstairs for a drink. Whether it’s a gin and tonic, an import beer, a vodka/soda or a scotch on the rocks, you’ve been thinking about it all day and you can’t wait for the taste to touch your lips.

Last week you did the exact same thing and woke up with a nasty hangover. Yet you’re gonna do it all over again. Is it addiction? A way to cope with personal problems by drowning it in drink?

Scientists are now telling us that binge drinking can be habit forming because when we binge drink, we block out the memories of the worst part of the experience and instead only remember the good parts. It seems alcohol helps us engage in selective memory. Here’s an excerpt from an article that appeared in yesterday’s edition of the UK Independent:

Alcohol has been found to affect memory in a selective manner. Drinking makes it easier to remember the good things about a party but harder to recall the bad things that happen after having too much.

Studies into the memories of people engaged in heavy drinking have shown that it is the inability to remember the worst excesses of a night out – while remembering the happy things that led up to them – is one of the main causes of repeated binge drinking.

We here at Vodka/Soda encourage the proliferation of good memories associated with alcohol, so be sure to run downstairs for a quick one once work is done :)


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It’s the end of the world as we know it….and I feel fine

September 10, 2008

Hadron
The Large Hadron Collider (LHC) is all set to start smashing atomic particles today

The media frenzy surrounding the Large Hadron Collider has hit fever pitch as today is the day when the first atomic particles are shot around the 27km track. Some scientists fear that the test could create tiny black holes that could put our planet’s existence in threat.

The world’s most famous theoretical physicist, Professor Stephen Hawking tut-tuts the notions of dangerous black holes being formed. Read Hawking’s take on today’s events (and the experiments to come) in Stephen Hawking’s £50 bet on the world, the universe and the God particle. Here’s an excerpt:

“If the LHC were to produce little black holes, I don’t think there’s any doubt I would get a Nobel prize, if they showed the properties I predict,” Professor Hawking told the Today programme. “However, I think the probability that the LHC has enough energy to create black holes is less than one per cent, so I’m not holding my breath.”

click here to read the rest of the article


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Trends in the Next Decade of Technology

September 6, 2008

Future technology
Future technology in a scene from “Minority Report”

Technological process is quickening from century to century, decade to decade, and year to year. In the previous millenium, some argued that technological advances would create a utopia for humanity. Some of the excesses of the past century showed this argument to be patently false. Technology is for the most part neutral and depends on how and why it is used and by whom it is used.

The speed with which our world is undergoing technological transformation is plain to see. The popular futurist Raymond Kurzweil tells us that we are approaching technological singularity: a point of unprecedented technological progress, caused in part by the ability of machines to improve themselves using artificial intelligence. That sounds frightening, as it should. However Kurzweil’s singularity is still some time away, should it actually ever happen.

In the meantime Nature.com has asked several leading technological experts to predict the trends in technology over the next decade. Words like haptics and phrases like semantic web will be more commonplace. Here’s an excerpt from this excellent article:

Leo Kärkkäinen – Chief visionary, Nokia Research Center, Espoo, Finland

PRODUCTS WITH MEMORIES

Ordinary products are going to have memories that store their entire history from cradle to grave, and that consumers can easily access.

Radio-frequency identification tags are a good option because they are already widely used to track inventory and to control theft. They are cheap and can be powered by an outside power source, such as the radio signal from the device being used to read them. But there may be another enabling technology that wins out.

Near-field communication systems already allow a phone to be used like a smart card for a travel pass or as an electronic wallet to pay for goods. If that technology can talk to the things you buy, as well as the systems through which you pay for them, it will enable consumers to choose not to buy goods that are unhealthy, allergenic, have used environmentally unfriendly methods or employed child labour.

As with many technologies, it could potentially be used for bad purposes; we have to ensure that privacy functions are built in to the system to put the consumer in control of whether they want to be tracked.

click this link to read the article in its entirety


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Does Sushi Pose a Health Risk?

September 6, 2008

sushi
Definitely not sushi à la carte

One of the joys of living in a large city with a sizable Asian population is the variety of sushi and sashimi restaurants that one encounters. The joy in eating sushi is as much about watching the process of it being prepared as it is about the texture of the fish itself (which usually, but not always, trumps the taste). Does anyone forget that first time eating sushi when all you can think about was the fact that the fish was raw? No food gets a greater warning for first timers than sushi, but the joy in tasting it makes for an excellent payoff.

Now, what about sushi being raw fish? Doesn’t it mean that we gamble with our health every time we go down to the local sushi joint? According to LiveScience.com we shouldn’t worry at all:

Sushi eaters don’t typically have to worry because sushi restaurants take certain steps in handling and preparing their fish. A required step involves freezing fish at temperatures of -4 degrees Fahrenheit (-20 degrees Celsius) for seven days, or frozen at -31 degrees Fahrenheit (-35 degrees Celsius) for 15 hours, which kills any parasites.

“As far as sushi goes, the rules are in place because people were getting sick,” said Keith Schneider, a microbiologist and food safety expert at the University of Florida. “The parasites are why we do the freezing on the raw fish.”

The cases of sushi-related illness fall far below the number of people sickened by contaminated produce such jalapeno peppers. Even in those rare cases, the rice in sushi is more often the culprit than the fish.

However, there is a dangerous side that few venture to:

Many sushi lovers feast contentedly on albacore or eel, but a few people aim for a more dangerous culinary experience by eating the raw flesh of a poisonous puffer fish called fugu.

Master fugu chefs sometimes include some of the poison in their prepared dish, which creates a tingly feeling on the lips when eaten. However, improperly prepared fugu can kill due to the fish’s potent neurotoxin.

“I consider it more of a dare than a delicacy,” Schneider said. “There are people who kill themselves every year trying to make fugu, and it gives sushi a bad name.”


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The Fountain of Youth May Have Just Been Discovered

September 3, 2008

dna sequence
The key to a longer life can be down to one simple gene

The Human Genome is unlocking all sorts of age-old mysteries and throwing up surprises on a very fast basis as scientists untangle the intricate strands of DNA contained in our bodies.

One of the most popular research forays has been into that of human longevity. Last month we learned that scientists halted the aging process in mice livers by stopping the buildup of harmful proteins in the organ’s cell. In even bigger news today, we learn that scientists have found the longevity gene. Two excerpts from the article:

FOR the first time researchers have identified a human gene firmly linked to ageing and longevity. People with a specific form of a gene are likely to live longer, healthier lives than those without it.

“What this article really emphasizes is what we all know anyway – if you want to live a long and healthy life, choose your parents carefully,” commented medical geneticist Bob Williamson, dean of Melbourne University’s Faculty of Medicine.

and:

Insulin is a hormone that regulates blood sugar levels, so is directly linked to a range of biological conditions such as carbohydrate metabolic which are indirectly associated with health and, thus, ageing.

Their findings – reported overnight in the US journal Proceedings of the National Academy of Sciences – help explain the “Winston Churchill paradox”.

That is, that some people live long, healthy lives despite smoking, drinking and other behaviours known to cause life-threatening – and shortening – disorders like cancer and Alzheimer’s disease.

Because of the complex role of insulin, the finding may also be the link between the ageing affects of cell and DNA-damaging “free radicals”, by-products of normal metabolism, and alow calorie diet which lowers the metabolic rate.


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The End is Nigh!

September 2, 2008

black hole
Are we about to be sucked into a series of black holes?

According to some scientists, the end of the world can come is as little as eight days from now when researchers at the Large Hadron Collider (LHC) in Switzerland flick the switch on the atom smasher in the hopes of re-creating events similar to the Big Bang.

The fear here is that this giant atom smasher 300 feet below the earth will create millions of tiny black holes that can have an adverse affect (to put it lightly) on all of us.

Read the rest here


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The Soundtrack of our Lives

September 2, 2008

collection
The songs we heard growing up shape our memories

Sights and smells will trigger memories in an individual but the sense of sound seems to trigger them best and especially when they are in musical form. Often enough, hearing an old song will automatically take us back to a place that no longer exist anywhere but in our memories, whether good or bad.

Dave Munger presents us with some research on why this is the case in Music and Memory: How the Songs We Heard Growing Up Shape the Story of Our Lives. Here’s an excerpt:

Matching our intuitions about music, researchers have found that music is an important influence on our memories. We associate songs with emotions, people, and places we’ve experienced in the past. This isn’t to say that music is the only influence on memory: the photos I took, the sights I saw, and the words I wrote about my hike will also help to preserve it in my mind for many years to come.

But it’s not easy to parse out exactly how music evokes memories. If I listened to “Rock Lobster” on the drive down from Hart’s Pass where we finished our hike, will “Rock Lobster” be associated with that memory, or with my birthday party in college where I danced wildly to the same song? Does music have a more powerful effect on memory than other influences, like images, words, or smells? We don’t know, but a group led by Petr Janata has taken an important first step in understanding how music can affect memory.

On that note, I’d like to present to you the soundtrack of my youth. Feel free to share yours with us.

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Can Science Explain the Spiritual Without the Aid of Religion?

August 29, 2008

neuroscience
Can science explain spirituality?

As the debate between believers of religion and the atheists continues unabated, many are turning towards science to understand why humans seem to not only want religion, but need it as well.

Once again the battlefield is the human brain as some neuroscientists are attempting to explain spiritual experiences through scientific means that make an end run around religion. This group is basing its findings around the study of interoception. Sandra Blakeslee attempts to understand why she feels a spiritual presence and why she can reject religion at the same time in Flesh Made Soul. Here’s a brief excerpt:

Can science help?

I think it can, although the research is in an early stage. A stunning new description of how the human body and brain communicate to produce emotional states — including our feelings, cravings, and moods — has all the elements needed to explain how the human brain might give rise to spiritual experiences, without the necessary involvement of a supernatural presence, according to Dr. Martin Paulus, a psychiatrist at the University of California in San Diego who is also a Zen practitioner.

Called interoception, it offers a radically new view of human anatomy and physiology based on how information from the body reaches the brain and how that information is processed uniquely in humans.


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Happiness isn’t all that it’s cracked up to be…….Viva Melancholia!

August 20, 2008

Melancholy
Edgar Degas’ Melancholy (1874)

Ask a person what they most want in life and most will automatically reply “happiness”. It’s more than a fair answer and happiness in life is a worthy goal but is it the alpha and omega of our being? One must feel sadness and loss to understand the absence of happiness and to magnify its benefits. It’s these range of emotions that make us all the more human.

In our technologically driven world, many seek happiness by canceling out sadness through medication. Prozac is one of the more popular medications on the market and like other anti-depressants it has been criticized for making people “less human” since it limits the range of their emotions. Soma was used in Aldous Huxley’s “Brave New World” for much the same reason (amongst other reasons).

Americans are notorious pill-poppers, especially those that can result in some form of “happiness”. After all, it fits into their country’s mission statement: “life, liberty and the pursuit of happiness” all too well. But is happiness everything? Eric G. Wilson says it isn’t and that by eliminating feelings of melancholy Americans are missing out on an essential part of life. Read his excellent article: In Praise of Melancholy. Here’s a short excerpt:

I for one am afraid that American culture’s overemphasis on happiness at the expense of sadness might be dangerous, a wanton forgetting of an essential part of a full life. I further am concerned that to desire only happiness in a world undoubtedly tragic is to become inauthentic, to settle for unrealistic abstractions that ignore concrete situations. I am finally fearful of our society’s efforts to expunge melancholia. Without the agitations of the soul, would all of our magnificently yearning towers topple? Would our heart-torn symphonies cease?

My fears grow out of my suspicion that the predominant form of American happiness breeds blandness. This kind of happiness appears to disregard the value of sadness. This brand of supposed joy, moreover, seems to foster an ignorance of life’s enduring and vital polarity between agony and ecstasy, dejection and ebullience. Trying to forget sadness and its integral place in the great rhythm of the cosmos, this sort of happiness insinuates that the blues are an aberrant state that should be cursed as weakness of will or removed with the help of a little pink pill.


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