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Archive for the ‘Science News’ Category


The Well Podcast: Cancer and Exercise

Apr 29, 2008 Author: admin | Filed under: Health News, Science News

Several studies have shown a link between exercise and lower cancer risk. However, the message often isn’t well received by patients who think it blames the victim by suggesting they wouldn’t have cancer had they just been more active.

That’s what I learned this week when I blogged about a new study suggesting cancer patients don’t exercise any more than the rest of us. The finding is troubling because some studies suggest exercise improves cancer survival, signaling that cancer patients have much to gain from exercising after a diagnosis.

But more than 100 readers responded to the article, and many of them complained that it was judgmental and blamed cancer patients for their plight. They added that exercise and calorie-counting are not priorities to a cancer survivor. I invited Leslie Bernstein, a noted cancer and exercise researcher from the City of Hope cancer center in Duarte, Calif., to talk about it.

To listen to our conversation, click below.

Audio Listen to the Podcast (mp3)

Darwin’s private papers go digital

Apr 23, 2008 Author: admin | Filed under: Science News

The works of one of the most towering figures of modern science are now available to anyone on the Web.

The Darwin Online Project is releasing on Thursday more than 90,000 online pages of Charles Darwin’s photographs, sketches, and manuscripts, including the first draft of his theory of evolution.

Transcripts of many of the documents have been published in the past, but this is the first time that the original manuscripts have been made available to the general public–and seeing these works in Darwin’s original scrawl somehow adds to the weightiness of what you are reading.

“This release makes his private papers, mountains of notes, experiments, and research behind his world-changing publications available to the world for free,” John van Wyhe, director of the project, told Reuters. “His publications have always been available in the public sphere–but these papers have until now only been accessible to scholars.

Besides drafts of On the Origin of Species, the collection includes thousands of notes and other drafts of his writings, as well as notes from his voyage on the Beagle, where he began to establish his theories on evolution.

For a more personal glimpse into Darwin’s life, there are also some letters from his wife, Emma, on her concerns about his faith, as well as recipes from her cookbook.

Richard Dawkins Writes Letter to Darwin Critic

Apr 22, 2008 Author: admin | Filed under: Science News

On 18th April, the day Ben Stein’s infamous film was released, Michael Shermer received the following letter from a Jew (referencing a past article that Shermer had written debunking the Holocaust deniers) whose identity I shall conceal as “David J”.

Now I truly understand who you atheists and darwinists really are! You people believe that it was okay for my great-grandparents to die in the Holocaust! How disgusting. Your past article about the Holocaust was just window dressing. We Jews will fight to keep people like you out of the United States!

Shermer wrote to Mr J to ask if he had by any chance just seen Expelled, and he received this reply:

Yes I have. You know, I respect you as a human being and you have done great work exposing psychics and frauds, but this is a very touchy issue that affects me and family emotionally. Our family business was affected because of Auschwitz because now, our family has nothing. It is gone. Things began to make sense once I saw the movie and I am just appalled. I have learned a lot from Ben Stein, a Jewish brother, who has opened my eyes up a bit.

It seemed to me that Ben Stein and his lying crew were more to blame than Mr J himself for his revolting letter. I therefore decided to write him a personal letter and try to explain a few things to him. It then occurred to me (indeed, Michael Shermer suggested as much) that there are probably many others like him, whose minds have been twisted in this evil way by the man Stein, and that it would be a good idea to publish the letter. I decided to wait 24 hours to see if he would reply, although I didn’t expect him to. I am now publishing my letter to him, exactly as I sent it to him except that I have removed his name.

Richard


Dear Mr J

Michael Shermer forwarded me a letter from you which suggests that you have unfortunately been taken in by Ben Stein’s mendacious and/or ignorant suggestion that Darwin is somehow to blame for Hitler. I hope you will not mind if I write to you and try to undo this grievous error.

1. I deeply sympathize with you for the loss of your relatives in the Holocaust. Nevertheless, I don’t think that could really be said to justify the tone of your letter to Michael Shermer, who is a kind and decent man, as even you seemed to concede in your second letter to him, and the very antithesis of a Nazi sympathizer.

Now I truly understand who you atheists and darwinists really are! You people believe that it was okay for my great-grandparents to die in the Holocaust! How disgusting. Your past article about the Holocaust was just window dressing. We Jews will fight to keep people like you out of the United States!

Just look at those words of yours. Probably you regret them by now. I certainly hope so, but I’ll continue to write my letter to you, on the assumption that you still feel at least a part of what you wrote.

2. Hitler’s horrible opinions were not all that unusual for his time, not just in Germany but throughout Europe, including my own country of Britain, by the way. What singled Hitler out was the fact that he somehow managed to come to power in one of Europe’s leading nations, which was also one of the world’s most technologically advanced nations. Hitler had a lot of support in Germany. His horrible bidding was done by millions of ordinary German footsoldiers, and the great majority of them were Christians. Many were Lutheran, and many (like Hitler himself) were Roman Catholic. Very few were atheists, and whatever else Hitler was he most certainly was not an atheist. It is sometimes said that Hitler only pretended to be Catholic, in order to win the Church’s support for his regime. In this he was very largely successful. So, whether or not Hitler was himself a true Catholic (as he often claimed) the Church bears a heavy responsibility for what happened. And Hitler himself used religion to justify his anti-Semitism. For example, here is a typical quotation, from the end of Chapter 2 of Mein Kampf.

Hence today I believe that I am acting in accordance with the will of the Almighty Creator: by defending myself against the Jew, I am fighting for the work of the Lord.

Hitler’s obscene anti-Semitism was able to hold sway in Germany because there was a deeply embedded history of anti-Semitism in Germany, and indeed in Europe generally.

3. Going further back in history, where do we think the toxic anti-Semitism of Hitler, and of the many Germans whose support gave him power, came from? You can’t seriously think it came from Darwin. Anti-Semitism has been rife in Europe for many many centuries, positively encouraged by most Christian churches, including especially the two that dominate Germany. The Roman Catholic Church has notoriously persecuted Jews as “Christ-killers”. While, as for the Lutherans, Martin Luther himself wrote a book called On the Jews and their Lies from which Hitler quoted. And Luther publicly said that “All Jews should be driven from Germany.” By the way, do you hear an echo of those words in your own letter to Michael Shermer, “We Jews will fight to keep people like you out of the United States.” Don’t you feel just a twinge of shame at those truly horrible words of yours? Don’t you feel that, as a Jew, you should feel especially regretful that you used those words?

4. Now, to the matter of Darwin. The first thing to say is that natural selection is a scientific theory about the way evolution works in fact. It is either true or it is not, and whether or not we like it politically or morally is irrelevant. Scientific theories are not prescriptions for how we should behave. I have many times written (for example in the first chapter of A Devil’s Chaplain) that I am a passionate Darwinian when it comes to the science of how life has actually evolved, but a passionate ANTI-Darwinian when it comes to the politics of how humans ought to behave. I have several times said that a society based on Darwinian principles would be a very unpleasant society in which to live. I have several times said, starting at the beginning of my very first book, The Selfish Gene, that we should learn to understand natural selection, so that we can oppose any tendency to apply it to human politics. Darwin himself said the same thing, in various different ways. So did his great friend and champion Thomas Henry Huxley.

5. Darwinism gives NO support to racism of any kind. Quite the contrary. It is emphatically NOT about natural selection between races. It is about natural selection between individuals. It is true that the subtitle of The Origin of Species is “Or the preservation of favoured races in the struggle for life” but Darwin was using the word “race” in a very different sense from ours. It is totaly clear, if you read past the title to the book itself, that a “favoured race” meant something like ‘that set of individuals who possess a certain favoured genetic mutation” (although Darwin would not have used that language because he did not have our modern concept of a genetic mutation).

6. There is no mention of Darwin in Mein Kampf. Not one single, solitary mention, not one mention in any of the 27 chapters of this long and tedious book. Don’t you think that, if Hitler was truly influenced by Darwin, he would have given him at least one teeny weeny mention in his book? Was he, perhaps, INDIRECTLY influenced by some of Darwin’s ideas, without knowing it? Only if you completely misunderstand Darwin’s ideas, as some have definitely done: the so-called Social Darwinists such as Herbert Spencer and John D Rockefeller. Hitler could fairly be described as a Social Darwinist, but all modern evolutionists, almost literally without exception, have been vocal in their condemnation of Social Darwinism. This of course includes Michael Shermer and me and PZ Myers and all the other evolutionary scientists whom Ben Stein and his team tricked into taking part in his film by lying to us about their true intentions.

7. Hitler did attempt eugenic breeding of humans, and this is sometimes misrepresented as an attempt to apply Darwinian principles to humans. But this interpretation gets it historically backwards, as PZ Myers has pointed out. Darwin’s great achievement was to look at the familiar practice of domestic livestock breeding by artificial selection, and realise that the same principle might apply in NATURE, thereby explaining the evolution of the whole of life: “natural selection”, the “survival of the fittest”. Hitler didn’t apply NATURAL selection to humans. He was probably even more ignorant of natural selection than Ben Stein evidiently is. Hitler tried to apply ARTIFICIAL selection to humans, and there is nothing specifically Darwinian about artificial selection. It has been familiar to farmers, gardeners, horse trainers, dog breeders, pigeon fanciers and many others for centuries, even millennia. Everybody knew about artificial selection, and Hitler was no exception. What was unique about Darwin was his idea of NATURAL selection; and Hitler’s eugenic policies had nothing to do with natural selection.

8. Mr J, you have been cruelly duped by Ben Stein and his unscrupulous colleagues. It is a wicked, evil thing they have done to you, and potentially to many others. I do not know whether they knowingly and wantonly perpetrated the falsehood that fooled you. Perhaps they genuinely and sincerely believed it, although other actions by them, which you can read about all over the Internet, persuade me that they are fully capable of deliberate and calculated deception. You are perhaps not to be blamed for swallowing the film’s falsehoods, because you probably assumed that nobody would have the gall to make a whole film like that without checking their facts first. Perhaps even you will need a little more convincing that they were wrong, in which case I urge you to read it up and study the matter in detail — something that Ben Stein and his crew manifestly and lamentably failed to do.

With my good wishes, and sympathy for the losses your family suffered in the Holocaust.

Yours sincerely

Richard Dawkins

Working with asbestos is the major risk factor for mesothelioma. A history of asbestos exposure exists in almost all cases. However, mesothelioma has been reported in some individuals without any known exposure to asbestos. In rare cases, mesothelioma has also been associated with irradiation, intrapleural thorium dioxide (Thorotrast), and inhalation of other fibrous silicates, such as erionite.

Asbestos is the name of a group of minerals that occur naturally as masses of strong, flexible fibers that can be separated into thin threads and woven. Asbestos has been widely used in many industrial products, including cement, brake linings, roof shingles, flooring products, textiles, and insulation. If tiny asbestos particles float in the air, especially during the manufacturing process, they may be inhaled or swallowed, and can cause serious health problems. In addition to mesothelioma, exposure to asbestos increases the risk of lung cancer, asbestosis (a noncancerous, chronic lung ailment), and other cancers, such as those of the larynx and kidney.

The combination of smoking and asbestos exposure significantly increases a person’s risk of developing cancer of the airways (lung cancer, bronchial carcinoma). The Kent brand of cigarettes used asbestos in its filters for the first few years of production in the 1950s and some cases of mesothelioma have resulted. Smoking modern cigarettes does not appear to increase the risk of mesothelioma.

Some studies suggest that simian virus 40 (SV40) may act as a cofactor in the development of mesothelioma.[7]

Mesothelioma and Asbestos, Mesothelioma Cancer, Mesothelioma Lawsuit, Mesothelioma Litigation, Mesothelioma Info

Although reported incidence rates have increased in the past 20 years, mesothelioma is still a relatively rare cancer. The incidence is approximately one per 1,000,000. For comparison, populations with high levels of smoking can have a lung cancer incidence of over 1,000 per 1,000,000. Incidence of malignant mesothelioma currently ranges from about 7 to 40 per 1,000,000 in industrialized Western nations, depending on the amount of asbestos exposure of the populations during the past several decades.[6] It has been estimated that incidence may have peaked at 15 per 1,000,000 in the United States in 2004. Incidence is expected to continue increasing in other parts of the world. Mesothelioma occurs more often in men than in women and risk increases with age, but this disease can appear in either men or women at any age. Approximately one fifth to one third of all mesotheliomas are peritoneal.

Between 1940 and 1979, approximately 27.5 million people were occupationally exposed to asbestos in the United States [4]. Between 1973 and 1984, there has been a threefold increase in the diagnosis of pleural mesothelioma in Caucasian males. From 1980 to the late 1990s, the death rate from mesothelioma in the USA increased from 2,000 per year to 3,000, with men four times more likely to acquire it than women. These rates may not be accurate, since it is possible that many cases of mesothelioma are misdiagnosed as adenocarcinoma of the lung, which is difficult to differentiate from mesothelioma.

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