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Friday, June 12, 2009

Richard Brown Defends Chiropractic

 
Read In defense of chiropractic by chiropractor Richard Brown in New Scientist.
SINCE the British Chiropractic Association (BCA) decided to sue science writer Simon Singh for libel, scientists and journalists have unleashed a torrent of criticism against chiropractic. Much of this is misinformed and needs to be corrected.

Many critics - including Edzard Ernst (New Scientist, 30 May, p 22) - hark back to the origins of chiropractic. This has the clear intention of suggesting that modern chiropractors cling to the 19th century idea that spinal misalignments are responsible for the majority of diseases. While a tiny minority retain this view, most are aware that such claims have long since been debunked.
This is the same Richard Brown who works at The Landsdown Clinic in Gloucestershire, UK. Here's a list of the treatments they offer at that clinic ....
Aromatherapy

Aromatherapy is the use of essential oils, extracts from the flowers, fruits, leaves, stems and roots of flowers, shrubs and trees. The therapeutic use of aromatic oils dates back to ancient times and was particularly popular in Ancient Egypt and the Far East. Aromatherapy massage is a gentle, flowing treatment that may help to relieve pain and alleviate tension and fatigue. The use of essential oils creates a feeling of calming energy and has a powerful effect on both body soul.

Reflexology

Reflexology is a complementary therapy that uses pressure points on the feet to help activate the circulation and nervous system. By using the feet as a map of the whole body, reflexology consists of the application of manual techniques to enhance a state of physical and mental balance.

Therapeutic Massage

Therapeutic massage is the use of hands to manipulate soft tissues of the body, particularly muscles. It can be used for relaxation, stimulation or rehabilitation of the whole body or part of it. Particularly effective in managing stress-related tension, massage promotes suppleness, aids flexibility and stimulates circulation. Therapeutic massage may be beneficial for a range of body systems and as well as treating muscular aches and pains, it can be useful in helping circulation and digestion.

Hot Stone Therapeutic Massage

Despite it being one of the fastest-growing massage techniques, hot stone therapy is an ancient healing art. It uses a combination of warm stones and various massage techniques which provide deep therapeutic effects and create harmony and balance.

Hopi Ear Candling

Being a hollow tube, the centre of an ear candle is simply a column of air rather than a solid mass. When lit at the top, the rising air column inside the candle begins to heat up. As the candle burns down, it continues to heat up the top of the rising air column of the centre of the candle. The rising air column creates a very mild suction action at the base, which help loosen compacted earwax. This experience is a gentle, relaxing treatment for everyone, including children.

Indian Head Massage

Indian Head Massage is a traditional touch therapy, which has been practised for thousands of years. It is gentle, yet firm and powerful, therapeutic massage of the shoulders, arms, neck, scalp, ears, hair and face which will leave you feeling soothed and rebalanced. This is an extremely enjoyable and deeply relaxing treatment that gives you a sense of calm and relaxation.
It's certainly NOT the Richard Brown at the Brown Chiropractic Center in Brockon, MA (USA) south of Boston. That practice offers to help you with allergies, asthma, bedwetting, pregnancy and a host of other problems.

I wonder if the British Richard Brown, who is never referred to as "doctor" on his website, would approve of the American "Dr." Richard Brown? I wonder if the American "Dr." Brown is aware of the fact that some of these 19th century claims have been debunked?


Thursday, June 11, 2009

Nobel Laureate: Jens Skou

 

The Nobel Prize in Chemistry 1997.

"for the first discovery of an ion-transporting enzyme, Na+, K+ -ATPase"




Jens C. Skou (1918 - ) won the Nobel Prize in Chemistry his work on the Na+,K+ ATPase (sodium potassium ATPase). He discovered that this membrane protein pumped sodium ions out of cells and pumped potassium ions into cells. The pump was driven by hydrolysis of ATP.

Skou shared the Nobel Prize with Paul Boyer and John Walker who worked out the mechanism of ATP synthase—the enzyme that makes ATP.

The press release describes Skou's work in some detail.
THEME:
Nobel Laureates
Na+, K+-ATPase, the first molecular pump to be discovered

It was known as early as the 1920s that the ion composition within living cells is different from that in the surroundings. Within the cells the sodium concentration is lower and the potassium concentration higher than in the liquid outside. Through the work of the Englishmen Richard Keynes and Alan Hodgkin at the beginning of the 1950s (Hodgkin received the Nobel Prize in 1963) it was known that when a nerve is stimulated sodium ions pour into the nerve cell. The difference in concentration is restored by sodium being transported out once again. That this transport required ATP was probable since the transport could be inhibited in the living cell by inhibiting the formation of ATP.

With this as the starting point Jens C. Skou searched for an ATP-degrading enzyme in the nerve membrane that could be associated with ion transport. In 1957 he published the first article on an ATPase, which was activated by sodium and potassium ions (Na + , K + -ATPase). He was the first to describe an enzyme that can promote directed (vectored) transport of substances through a cell membrane, a fundamental property of all living cells. Numerous enzymes have since been demonstrated to have essentially similar functions.

Skou used as experimental material finely ground crab nerve membranes. The ATP-degrading enzyme found in the preparation required the presence of magnesium ions and was stimulated with increasing quantities of sodium ions up to a certain limit. Above this Skou was able to obtain further stimulation if he added small quantities of potassium ions. An indication that the enzyme was coupled to the ion pump was that maximal stimulation was obtained at the concentrations of sodium and potassium that normally occur in the nerve. In his further studies of the enzyme mechanism Skou showed that sodium ions and potassium ions bind with high affinity to different places in the enzyme. In addition he showed that the phosphate group separated from ATP also binds to ATPase. This is described as a phosphorylation of the enzyme. The enzyme is dependent on sodium ions when it is phosphorylated and on potassium ions when it is dephosphorylated. Substances known to inhibit sodium/potassium transport are certain digitalis alkaloids, e.g. oubain, and Skou showed that oubain interferes in the enzyme's activation by sodium.

The picture that slowly emerged from Skou's and others' work is that the enzyme consists of two subunits, alpha and beta. The first carries the enzyme's activity and the other presumably stabilises the structure. The enzyme molecules are located in the cell membrane, often in twos, and expose surfaces to the outside as well as the inside. Three sodium ions and ATP bind to the interior surface. A phosphate is then transferred from ATP to an amino acid in the enzyme, aspartic acid, whereupon the ADP is liberated and the enzyme changes form so that the sodium ions are transported to the outside. Here they are released and two potassium ions attach instead. When the phosphorus that is bound to the enzyme is removed the potassium ions are transported into the cell and when new ATP binds to the enzyme they are rejected.

As a result of the action of the Na + , K + -ATPase, the cell keeps a high concentration of potassium in its inside. As the cell membrane is rather permeable for potassium ions, a few of these potassium ions leak out, leaving unpermeable, negative charges on the inside of the cell. Therefore, the inside of the cell membrane becomes electrically negatively charged, as compared to the outside.

This difference in potential across the membrane is necessary for a nerve stimulation to propagate along a nerve fibre or a muscle cell. This is why a shortage of nourishment or oxygen in the brain rapidly leads to unconsciousness since the ATP formation ceases and the ion pump stops. The pump is also important for maintaining cell volume. If the pump stops, the cell swells. The difference in sodium concentration between the interior and the exterior is the driving force in the uptake of important nutrients necessary to the cell, e.g. glucose and amino acids. It can also be used for transport of other ions through the cell membrane. Thus sodium ions that enter can be exchanged for calcium ions that exit.

Following the discovery of Na + , K + -ATPase other ion pumps have been discovered with similar structures and functions. Examples are Ca 2+ >-ATPase in skeletal muscle, which participates in the control of muscle contraction and H + , K + -ATPase which produces hydrochloric acid in the stomach. It is the latter enzyme that is specifically inhibited in modern treatment of stomach ulcers. Corresponding enzymes are also found in lower organisms, for example in yeast where an H + -ATPase secretes hydrogen ions formed during fermentation. As a common name these enzymes are nowadays termed P-type ATPases since they are phosphorylated during the course of the reaction.

The images of the Nobel Prize medals are registered trademarks of the Nobel Foundation (© The Nobel Foundation). They are used here, with permission, for educational purposes only.

Time Tree: The Timescale of Life

 
Check out the Time Tree website. You can type in any two species and find out when they diverged.

This is a great learning tool. Try it with Homo sapiens (that's us) and ....
Gallus gallus (chicken)
Danio rerio (some kind of fishy thing)
Strongylocentrotus purpuratus (purple sea urchin)
Drosophila melanogaster (fruit fly)
Caenorhabditis elegans (nematode)
Saccharomyces cerevisiae (baker's yeast)
Arabidopsis thaliana (flowering plant)
Plasmodium falciparum (protozoan, causes malaria)
Escherichia coli (bacterium)
Keeping in mind that the Cambrian explosion happened about 550 million years ago, try and guess when the lineage leading to these species diverged from the lineage leading to humans. Check your guess on the website.

Where you right? Why, or why not?


[Hat Tip: ERV]

Wednesday, June 10, 2009

Chiropractors Receive Warning

 
The McTimoney Chiropractic Association of Great Britain has issued a waring to all it members. You can read the entire thing on The Quackometer. The bottom line is that the members are supposed to remove all references to treatment of "whiplash, colic or other childhood problems."

The association is worried about lawyers and citizens who are on the lookout for false claims by chiropractors.
The target of the campaigners is now any claims for treatment that cannot be substantiated with chiropractic research. The safest thing for everyone to do is as follows.

1. If you have a website, take it down NOW.
Sort of makes you wonder what they're afraid of, no?

I'm interested in another warning ...
If you use business cards or other stationery using the ‘doctor’ title and it does not clearly state that you are a doctor of chiropractic or that you are not a registered medical practitioner, STOP USING THEM immediately.
On a completely unrelated note, one of the MPs in our area is Ruby Dhalla a Liberal1 from Brampton-Springdale.

Here's something from her website.
Dr. Dhalla brings extraordinary experience, passion, and perspective to her role as the Member of Parliament for Brampton Springdale in Canada’s Parliament. As a community activist, doctor, and entrepreneur she is one of the leading progressive voices in parliament and works tirelessly in Parliament on behalf of those that struggle to be heard. Dr. Dhalla made history in 2004 as the first South Asian Women to be elected to federal parliament in the western world and was subsequently re-elected on January 23, 2006 and again on October 14th 2008 by the support of her constituents. She is one of the youngest women in Canadian Parliament.

Her experience in politics started at a young age, beginning as a volunteer with her local MP, to knocking on doors in numerous liberal campaigns at the age of 12, to writing a letter advocating for peace to the late Prime Minister of India, Indira Ghandi, at the age of 10.

Born and raised in Winnipeg, Manitoba, and graduating with her Doctor of Chiropractic in 1999 in Toronto, Dr. Dhalla has had the fortunate opportunity of listening, learning, connecting and working with people from various socio-economic and cultural backgrounds. Her journey and experiences have served as her own inspiration in advocating for women, fighting for youth and promoting Canada’s role in the international arena.

As a doctor and an owner of multidisciplinary health care clinics prior to seeking public office, Dr. Dhalla has witnessed first hand the complexities and the challenges of Canada’s health system, especially those faced by patients and front-line health care providers. It is with this firsthand knowledge and insight that Dr. Dhalla has been able to contribute to her former role as the Critic for Health for the Official Opposition and as Vice- Chair for the Standing Committee on Health.


1. I know she's a Liberal. I know some of her Liberal supporters. I originally typed "Conservative" just to see if anyone was paying attention! :-) (Not.)

[Hat Tip: Pharyngula]

The Most Famous Speech in Medical History

 
Robert Koch and Tuberculosis.
Koch's Famous Lecture

Robert Koch, a German physician and scientist, presented his discovery of Mycobacterium tuberculosis, the bacterium that causes tuberculosis (TB), on the evening of March 24, 1882. He began by reminding the audience of terrifying statistics: "If the importance of a disease for mankind is measured by the number of fatalities it causes, then tuberculosis must be considered much more important than those most feared infectious diseases, plague, cholera and the like. One in seven of all human beings dies from tuberculosis. If one only considers the productive middle-age groups, tuberculosis carries away one-third, and often more."

Koch's lecture, considered by many to be the most important in medical history, was so innovative, inspirational and thorough that it set the stage for the scientific procedures of the twentieth century....


Monday's Molecule #125: Winner

 
Only one person guessed the molecule and that person was Bill Chaney from the University of Nebraska. Nebraska is very much like one of the provinces in western Canada so I count him as a honorary Canadian!

Naturally Bill also got the correct Nobel Laureate.

The molecule is lipoarabinomannan, also known as LAM. It's a complex derivative of phosphatidylinositol characterized by the presence of numerous mannose residues and branching arabinose chains. LAM is part of the cell wall of mycobacteria, including Mycobacterium tuberculosis, the bacteria that causes tuberculosis.

LAM is one of the major antigens in tuberculin, a complex that is easily isolated from cultures of M. tuberculosis. The complex antigen was used in skin tests for tuberculosis. Robert Koch was the first scientist to isolate tuberculin and he received the Nobel Prize in 1905 for his contributions to understanding how bacteria cause disease.



This is the tentative structure of a very important molecule. It's "tentative" because the exact structure hasn't been fully worked out and because the "molecule" is heterogeneous—it's actually a mixture of several similar molecules.

Identify this molecule by giving its common name and the organism(s) from which it is derived. This particular molecule is part of a much larger complex that was first identified over 100 years ago. The person who discovered that large complex received a Nobel Prize. Identify the Nobel Laureate.

The first person to identify the molecule and the Nobel Laureate, wins a free lunch at the Faculty Club. Previous winners are ineligible for six weeks from the time they first won the prize. Please note the change in the length of time you are ineligible. The idea is to give more more people a chance to win.

There are nine ineligible candidates for this week's reward: Laura Gerth of the University of Notre Dame, Stefan Tarnawsky of the University of Toronto, Dima Klenchin of the University of Wisconsin, Madison, Adam Santoro of the University of Toronto., Michael Clarkson of Waltham MA (USA), Òscar Reig of Barcelona, Maria Altshuler of the University of Toronto, Mike Fraser of the University of Toronto, and Jaseon Oakley of the University of Toronto.

Mike has saved Canadians from embarrassment.

I still have one extra free lunch donated by a previous winner to a deserving undergraduate so I'm going to continue to award an additional free lunch to the first undergraduate student who can accept it. Please indicate in your email message whether you are an undergraduate and whether you can make it for lunch.

THEME:

Nobel Laureates
Send your guess to Sandwalk (sandwalk (at) bioinfo.med.utoronto.ca) and I'll pick the first email message that correctly identifies the molecule and names the Nobel Laureate(s). Note that I'm not going to repeat Nobel Prizes so you might want to check the list of previous Sandwalk postings by clicking on the link in the theme box.

Correct responses will be posted tomorrow.

Comments will be blocked for 24 hours.


[Image Credit: The structure of Mycobacterium tuberculosis lipoarabinomannan (LAM) by Achim Treumann and Steve Homans.]

10 scientific objects that changed the world

 
New Scientist, which used to be a decent science magazine, has a list of 10 scientific objects that changed the world. You are invited to vote for your favourite on the Science Museum site.
To mark its centenary, the Science Museum in London had its curators select the ten objects in its collection that made the biggest mark on history. Explore them in this gallery, and cast your vote in the public poll to decide the most significant of all.
In fairness, the Science Museum picked ten objects that had a big impact on history. It appears to be New Scientist that labeled these "scientific objects."

Here's a preview.
  1. Apollo 10 capsule: engineering, not science
  2. Thompson’s Atmospheric Engine: engineering, not science
  3. The electric telegraph: engineering, not science
  4. Model T Ford: definitely not science
  5. Pilot ACE Computer: engineering, but used in science
  6. V2 rocket engine: military, not science
  7. Penicillin: science as applied to medicine
  8. DNA double helix: the only pure science choice
  9. X-ray machine: a scientific instrument
  10. Stephenson's Rocket: definitely not science
That's quite a list. I really don't like that fact that science and technology are hopelessly confused in the minds of the general public. And I loathe the idea that a so-called "Science Museum" and a so-called "science" magazine can't tell the difference.

The Science Museum in London is a wonderful place but the displays do nothing to teach the difference between real science and its applications.

Here's are some objects that are missing: The Beagle or Darwin's notebooks, Galileo's telescope, the ultracentrifuge, Lucy, the microscope, the electron microscope, William Smith's map, model of an atom, COBE, an early DNA sequencing apparatus, Newton's Principia Mathematica, Lyell's Principles of Geology, a camera, a bottle of oxygen, Pasteur's bell jar, Einstein's 1905 paper "On the Electrodynamics of Moving Bodies" ....

I'm sure there are many more I haven't thought of.


Tuesday, June 09, 2009

Vaccine refuseniks are free-riders

 
There are some really interesting ethical issues associated with vaccinations. The advantages of vaccination benefit the entire community (the "herd") but not necessarily the individual. If everyone is vaccinated then one person can opt out without a great deal of risk. They get the benefit but don't pay the cost. They get a free ride.

Janet Stemwedel is interested in these ethical problems. Read what she has to say about those who refuse to vaccinate their children at Vaccine refuseniks are free-riders.

I wonder if there's a cultural difference when it comes to these kinds of problems? Are there some cultures who value the society more than the individual and others who value the individual more? If so, do they differ in the number of people who refuse to be vaccinated?


Monday, June 08, 2009

What Is Natural Selection?

 
If you ever thought that the concept of natural selection was easy then you must read Understanding Natural Selection: Essential Concepts and Common Misconceptions by T. Ryan Gregory. The article appears in the latest issue of Evolution: Education and Outreach and it contains many references to studies of how students perceive evolution.

It's a very good article. Ryan has thought of many misconceptions that I would have missed and he has documented the existence of those misconceptions in the classroom—among students and teachers alike!. He also does a really good job of explaining natural selection, with one important omission.

One thing that the article didn't mention is that natural selection is a stochastic process. A given allele may be demonstrably beneficial to survival but that doesn't mean it will sweep to fixation.

One of the misconceptions that we most frequently encounter in the blogosphere is the idea that whenever a beneficial effect is demonstrated, or conceived, it will automatically take over. The reality is that the probability of fixation is related to the population size and the coefficient of selection. Imagine that a new mutation gives rise to an allele conferring an advantage of 1% on the individual carrying it. The probability of fixation in the population is approximately 2%—in other words, the allele is lost 98% of the time.

Most people think that beneficial alleles will always become fixed in a population. That's one of the most important misconceptions about natural selection and it's a shame that it was left out of the article.

This misconception is behind much of adaptationist thinking. To them it seems to be sufficient to postulate a benefit, no matter how small, and it automatically follows that the entire population/species will acquire it. The reality is that such adaptionist thinking requires two separate components: (1) the existence of a possible beneficial allele and, (2) the demonstration that the postulated benefit is of sufficient potency to lead to fixation with a high probability.1

There's one other misconception that's missing. Many people think that natural selection only occurs when the environment changes. This is formally equivalent to a belief that, in a stable environment, all species become perfectly adapted so that no further adaptation can take place. There's no evidence to support this concept. It requires that most species are sitting at the top of an adaptive peak.

In order to become perfectly adapted, all possible beneficial mutations would have had to arise and be fixed in the population. I believe that this hasn't happened in most cases so that all species are still capable of further adaption even if the environment has been stable for a million years.

The corollary to this misconception is that species that haven't changed much in outward appearance over a long period of time (e.g. living fossils) have not evolved because their environment didn't change. In fact, we see plenty of change at the molecular level in these so-called "living fossils" and some of that change is almost certainly adaptation.

If you combine Ryan's article with the ideas that natural selection has a stochastic component and that perfect adaptation is rarely achieved, then you will understand natural selection better than most people.

If, in addition, you learn that there's more to evolution than natural selection then will truly be able to say you understand evolution.


1. For example, it's possible to imagine that there might be an allele conferring a particular behavior that's beneficial. Say, females not communicating with male relatives when they are ovulating. But that's not sufficient. Evolutionary psychologists must also explain why the adaptive benefit is sufficient to lead to fixation and preservation in the population. Is it a 0.001% benefit or a 25% benefit?

Monday's Molecule #125

 
This is the tentative structure of a very important molecule. It's "tentative" because the exact structure hasn't been fully worked out and because the "molecule" is heterogeneous—it's actually a mixture of several similar molecules.

Identify this molecule by giving its common name and the organism(s) from which it is derived. This particular molecule is part of a much larger complex that was first identified over 100 years ago. The person who discovered that large complex received a Nobel Prize. Identify the Nobel Laureate.

The first person to identify the molecule and the Nobel Laureate, wins a free lunch at the Faculty Club. Previous winners are ineligible for six weeks from the time they first won the prize. Please note the change in the length of time you are ineligible. The idea is to give more more people a chance to win.

There are nine ineligible candidates for this week's reward: Laura Gerth of the University of Notre Dame, Stefan Tarnawsky of the University of Toronto, Dima Klenchin of the University of Wisconsin, Madison, Adam Santoro of the University of Toronto., Michael Clarkson of Waltham MA (USA), Òscar Reig of Barcelona, Maria Altshuler of the University of Toronto, Mike Fraser of the University of Toronto, and Jaseon Oakley of the University of Toronto.

Mike has saved Canadians from embarrassment.

I still have one extra free lunch donated by a previous winner to a deserving undergraduate so I'm going to continue to award an additional free lunch to the first undergraduate student who can accept it. Please indicate in your email message whether you are an undergraduate and whether you can make it for lunch.

THEME:

Nobel Laureates
Send your guess to Sandwalk (sandwalk (at) bioinfo.med.utoronto.ca) and I'll pick the first email message that correctly identifies the molecule and names the Nobel Laureate(s). Note that I'm not going to repeat Nobel Prizes so you might want to check the list of previous Sandwalk postings by clicking on the link in the theme box.

Correct responses will be posted tomorrow.

Comments will be blocked for 24 hours.


[Image Credit: The structure of Mycobacterium tuberculosis lipoarabinomannan (LAM) by Achim Treumann and Steve Homans.]

Bill Maher Talks to Francis Collins

 
Catching up on my blog reading, I discovered this on ERV. It's really funny. .... What's that you say? It's not supposed to be funny?


Any further news on whether Francis Collins is going to be head of NIH?


Sunday, June 07, 2009

The Accommodationist Position at NCSE

 
The March-April issue of Reports of the National Center for Science Education contains an interesting article by Daryl P. Domning, a Professor of Anatomy at Howard University in Washington DC (USA). The title of the article is "Winning Their Hearts and Minds: Who Should Speak for Evolution?"

This is an article about whether atheists or theistic evolutionists should take the lead in opposing Young Earth Creationism. Domning is the co-author of Original Selfishness: Original Sin And Evil in the Light of Evolution and he has written many articles in support of a Christian view of science and evolution.

Before I quote from his article in Reports of the National Center for Science Education, can you predict what it will say? Of course you can. Downing is a theist and of course he thinks that evolution should be described from a theistic perspective and not from an atheist perspective. Duh!

Here's the bottom line.
Moderate views on creation-vs-evolution are not in short supply. Yet despite the Gallop polls consistently showing 35-40% of Americans somewhere between the poles of special creationism and striclty materialists evolutionism (with only 9-15% for the latter view), this reality is studiously ignored both by creationists and by materialists like Dawkins (and others). This not only polarizes the debate unnecessarily, but fundamentally misrepresents it. To break this impasse and move toward defusing evolution as an explosive social and educational issues, I propose the perhaps shocking idea that it is time for theistic evolutionists to take over from atheists as the public face of evolution advocacy.[my emphasis]
This is hardly a shocking idea since NCSE, along with major scientific organizations, have been promoting exactly that sort of strategy for many years. The key question is, exactly how are theistic evolutionists going to take over from atheists? Are they going to shout louder?
In this asymmetrical warfare, the secularists make easy, static targets. They fruitlessly deploy ponderous scientific artillery against the light-weight arguments of "scientific creationist" guerillas, and wonder at how the latter blithely dance aside to fight again another day. But the creationist leaders and their lay followers are clearly motivated by those existential and theological concerns and not by science, so the scientific arguments do not lay a glove on them.
This is completely wrong. The atheists are the ones who recognize the real problem. The real problem is not science or the law and the problem won't be solved by winning a scientific debate or a trial in Dover.

The real problem is superstition, often masquerading as religion. As long as people continue to believe that superstition can trump science then no scientific argument will convince them to abandon creationism in its various manifestations—which includes theistic evolution, by the way. The atheists are aiming their artillery at religion.
As long as the secularists insist on prosecuting the war unilaterally in this way, they will not prevail. The only hope for a successful outcome lies with a coalition: the secularists must ally themselves with—indeed yield leadership to—theistic evolutionists, who understand the creationist's religious culture, speak their religious language, and can engege them on their home turf.
Now that's a shocking statement. It's not shocking because it's so stupid, it's shocking because the author clearly has not been listening to the debate. The reason why theistic evolutionists speak the same language as the creationists is because they are creationists. Almost all religions spawn creationism and the rejection of at least some aspects of science. (Strict deism is the only exception.)

The reason why atheists won't ally with theistic evolutionists in a fight against religion should be obvious to anyone who has followed the debate over the past five years. Daryl P. Domning has not been paying attention.

Before the publication of the latest round of atheists books, the fight against creationism was almost entirely led by accommodationists and/or closet atheists. It's reasonable to ask whether they were successful. To ask the question is to answer it. The number of Americans clinging to superstitious beliefs hardly changed for five decades. That's not a success by any stretch of the imagination.

To his credit, Domning seems to glimpse part of this when he says ...
Finally, is my proposal basically a tactical one? Of course it is—because the old tactics have failed to achieve more than a courtroom stalemate, while the soul of creationism is marching on in churches, classrooms, political campaigns, and the rest of society. We have been fighting the wrong war with the wrong weapons. If we are content to rest on our courtroom victories, as the winners of every stand-up fight, we will end up as we did in Vietnam: or as Sitting Bull supposedly said after the Little Bighorn, we will have "won a great battle, but lost a great war."
I'm glad that Downing and I can agree on one thing. Court victories are a mirage.

My solution to the problem of superstitious belief is to challenge it head-on. I presume that Downing wants to fight another battle and continue losing the war. That's understandable since he and I are not on the same side in the battle that I want to fight.

Atheists are directly addressing the real problem, religion. If there are theists who want to join us then they are welcome to do so but they will have to abandon all forms of creationism, including theistic evolution.

The National Center for Science Education is aware of the fact that Domning's article is controversial. In their editorial they state that "NCSE, of course, has a clear policy of religious neutrality." In order to preserve the illusion of balance, NCSE asked three other people to comment on Domning's article.

Sheldon Gottlieb says ...
Considering the complexities introduced by religion, any evolutionist, therefore, could lead the discussion on [science vs religion] and evolution-creation with one proviso: there is no need for atheistic evolutionists to be strident about the non-existence of God, despite the fact that fundamentalists have inexplicably bound the two. The emphasis should be placed on explaining what science is, what is religion, and the differences between them, and framing all [science vs religion] creation/evolution discussions from a scientific perspective (natural explanations of natural phenomena) and not a theistic prespective (untestable and unlimited imaginations about the supernatural).
This is the soft version of accommodationism. It's the failed version. I can't imagine how Gottlieb would want an evolutionist to behave while explaining religion and the differences between science and religion.

Keith1 Miller says ...
As Domning says, being public advocates for the compatibility of evolutionary science and religious faith is not about injecting religion into science. Far from it! It is simply presenting the true face of science which practiced by individuals representing a very wide range of theistic and not-theistic views.
This is interesting logic. Some of those scientists are Intelligent Design Creationists. Does that mean that NCSE should publicly advocate the compatibility of evolution and Intelligent Design Creationism? Of course not. The decision to pick and choose which religious scientists to support is a conscious one and it means that NCSE takes a position on good religions vs bad religions.

Erik B. Pietrowicz says ...
The public is not generally concerned with making the distinction between scientific evidence and religious belief. In practice, then, the nature of the theological opinions that are commonly associated with evolutionary biology is important, as they can end up driving a false wedge between religion and science in general. Thus, evolution education (and religion?) suffers as atheism and evolutionism become synonymous in the public mind.
This is another example of soft accommodationism. He advocates that we should stick to science and not drag religion into the debate. That's the same old strategy that has failed in the past. This is not a debate about science. It's a debate about superstition.


1. I misidentified this person as "Ken" Miller in my original posting. This was stupid and embarrassing.

Is Oprah Winfrey giving us bad medicine?

 
David Gorski is a physician who blogs at Science-Based Medicine. One of his recent postings has been published in today's issue of The Toronto star as: Is Oprah Winfrey giving us bad medicine?.
Unfortunately, Oprah displays as close to no critical-thinking skills when it comes to science and medicine as I've ever seen, and uses the vast influence her TV show and media empire give her in order to subject the world to her special brand of mystical New Age thinking and belief in various forms of what can only be characterized as dubious medical therapies at best and quackery at worst.

Naturally, Oprah doesn't see it that way, and likely no one could ever convince her of the malign effect she has on the national zeitgeist with respect to science and medicine.

Consequently, whether fair or unfair, she represents the perfect face to put on the problem that we supporters of science-based medicine face when trying to get the message out to the average reader about unscientific medical practices, and that's why I am referring to the pervasiveness of pseudoscience infiltrating medicine as the "Oprah-fication" of medicine.
There's an interesting background to this story ans David Gorski recounts in the blog [“The Oprah-fication of Medicine” in The Toronto Star].
No one was more shocked than I was when the editor of Sunday Insight section of The Toronto Star contacted me earlier this week to ask if he could adapt my post to a newspaper editorial.
This is a really good sign. A newspaper realizes that blogging and publishing newspapers are not necessarily in competition.


Psychology and Finger Length

There was a lot of interesting stuff going on at the Human Behavior and Evolution Society (HBES) conference held recently at California State University, Fullerton (USA).

You can check out HBES.com and read the abstracts of the papers presented. It gives you a real flavor for the kind of "science" being done in the name of evolutionary psychology.

There was a session on "Digit Ratio." Apparently this is a new field of research in evolutionary psychology. It attempts to correlate the lengths of your fingers with various behaviors. The most relevant parameter appears to be the ratio of the length of your index finger and your ring finger (2D:4D). In women these two fingers are the same length while in men the fourth finger tends to be slightly longer.

Two of the papers at the HBES meeting were from Gad Saad, an Associate Professor of Marketing at the John Molson School of Business at Concordia University in Montreal, Quebec, Canada. He's the author of a book called The Evolutionary Bases of Consumption.

Gad Saad recently posted on the Psychology Today blog [Can the Length of Your Fingers Affect Your Consumption?]. He said ...
Some have argued that the 2D:4D is nothing more than a "sophisticated" form of palmistry. Others have ventured that it belongs with astrology and phrenology, former scientific fields that are now completely discredited. The reality is that the sheer number of papers that have yielded robust 2D:4D effects in prestigious peer-reviewed scientific journals suggests that it is going to take more than a flippant dismissal, as the means of critiquing this thriving research stream.
That's an interesting argument. It doesn't address the real issue; namely, whether those papers are scientifically valid or not. It merely states that because they are reviewed and accepted by other evolutionary psychologists they must be true. This is, unfortunately, becoming a common excuse these days.

What if peer review is failing to distinguish good science from bad science? I think this is what's happening in most disciplines these days.

Here's the abstract of the presentation given by Gad Saad's group at the HBES meeting.

Finger length ratio and attitudes towards several product categories
Marcelo Vinhal Nepomuceno, Gad Saad, Eric Stenstrom, Zack Mendenhall

The second-to-fourth finger length ratio (2D:4D), a sexually dimorphic trait, is affected by androgen exposure in utero. It has been linked to a wide range of human phenomena including economic outcomes, personality, sexuality, athletic and musical abilities, health status, and occupational interests to name but a few examples. Surprisingly, it has yet to be investigated in the consumption context. Using a sample of 555 university students, we examined if finger length ratio was negatively correlated with products with a male penchant and positively correlated with products preferred by females. Participants responded to several items, which assessed their attitude towards several product categories namely: cosmetics, electronics, pornography, clothing, movies genres (drama, action, science fiction, romance, animation and war), sports (hockey, boxing, synchronized swimming and gymnastics) and genres of video-games (First-person Shooter, Real-time Strategy, Party-game, Platformer and Life Simulator). Two key findings were obtained. First, the length of the index finger relative to the sum of the lengths of all four fingers (2rel) was generally a better predictor of product attitudes than 2D:4D, given that it yielded a greater number of significant effects. Second, we found significant (p<.05) or marginally significant (p<.10) correlations, in the predicted directions, between 2rel and attitudes towards four out of the nine product categories preferred by males and towards five out of the ten product categories preferred by females. The remaining product categories were not significantly correlated to 2rel. This constitutes the first study to demonstrate a link between a morphological trait and attitudes toward specific products.

Could this be scientific evidence that palm reading actually works?

Does this have anything to do with evolution or is the evolution of consumption a separate study?


Friday, June 05, 2009

Why Won't Your Daughter Call Home?

 
The Human Behavior and Evolution Society (HBES) is meeting at California State University, Fullerton. There are 450 evolutionary psychologists in attendance [Notes from an evolutionary psychology conference]. I don't think I could be happy there.

One of the attendees is a graduate student named Elizabeth Pillsworth. She studies the evolution of adaptations for avoiding incest. You'll be surprised at what she reports.
The researchers' hypothesis on incest avoidance was that near ovulation, women are motivated to avoid affiliation with male kin (fathers) but not mothers, to avoid the potential costs of inbreeding. Their predictions were that relative to low-fertility days, on high-fertility days women would initiate fewer calls and engage in shorter conversations with fathers, compared to mothers.

They had 51 normally-ovulating women (mean age 19.1 years old) provide complete cell phone bills from one month, along with their menstrual cycle information and details about individuals on their phone bill. It turned out that the subjects called their fathers significantly less than their mothers during high fertility days, and when both mothers and fathers called them during high fertility days they spent less time on the phone with their dads than with their moms.

Conclusion: "this is the first evidence of adaptation in human females to avoid affiliation with male kin when fertility is at its highest."
Isn't that amazing? I can't possibly think of any other explanation. There must be a gene for not talking to your father when you're fertile. I wonder what chromosome it's on?

I wonder if there were any controls—like how often the women spoke to their boyfriends, or when mothers called their sons?