Wednesday, May 11, 2005

Template Trouble

I think my blog has demons or something. For reasons unknown to me, the template stopped working today. I have not changed anything for at least a week, so I don't know what is going on.

I therefore took emergency action and changed the template. I actually kind of like it and may keep it, with some modification. So if things look a little strange or out of place, you'll know why.

(I think something may be wrong with the MainOrArchivePage or ItemPage tags, because implementing expandable posts, as I've done it in the past, breaks the template. Anybody else having trouble?)

Update: Well it turns out that I had a formatting error in my last post. This is partially why I got out of computer science. I still kind of like this template though. I may adjust the colors, but it is roomier. I think I may keep it. Anybody have strong opinions?

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Pheromones and Homosexuality

A new study suggests that humans respond to pheromones. Not only that, but the response differs based on sexual orientation. A news summary of the study says:

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The scientists exposed heterosexual men and women and homosexual men to chemicals found in male and female sex hormones. One chemical is a testosterone derivative produced in men's sweat. The other chemical is an estrogen-like compound in women's urine.

These chemicals have long been suspected of being pheromones, molecules emitted by one individual that evoke some behavior in another of the same species. Pheromones trigger basic responses, such as sexual attraction, in many animals.

But scientists have long debated if humans respond to pheromones. The new study suggests that pheromones indeed play a part in making humans sexually attractive to one another.

In a previous study a few years ago, the Swedish researchers showed that the brain's hypothalamus region, which is involved in sexual behavior, becomes activated when men smell EST (the estrogen derivative) and women smell AND (the testosterone compound), but not vice versa.

For their new study, the scientists added a sexual-orientation element, which revealed a difference in the brain activity of gay and straight men.

The researchers found that the testosterone compound activated the hypothalamus in homosexual men and heterosexual women, but not heterosexual men. Conversely, the estrogen compound activated the hypothalamus only in heterosexual men.


I'm not a neuroscientist so I cannot analyze the paper, but I took a quick look at the conclusion section of the paper. The authors list several issues that need to be considered. First is the issue of whether the response is a result of hardwiring in the brain, sensitization, or association. Second is how the pheromone is detected; the authors think that the timing suggests detection in the nose. Third whether the concentration of the pheromones in the experiment are physiologically relevant.

The issue of why homosexuality exists is a contentious one. My own [non-scientific] opinion is that the answers are complex and cannot be easily catagorized. I'm comfortable with some having a strong biological basis for their orientation, others having a social or psychological motivation, and others being somewhere in between. Biology is resistant to pigeon-holes.

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Polio Outbreaks

This week's Nature has a news article reporting on some recent polio outbreaks:

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Polio is spreading to countries previously considered free of the disease, following a vaccine boycott in Nigeria in 2003. An outbreak in Yemen has sparked fears of an epidemic in the poorly immunized Middle Eastern nation. And the virus has now reached southeast Asia, with four cases confirmed in Indonesia last week.

Polio has not been seen in Yemen and Indonesia for a decade. Genetic analysis shows that the virus appearing in both areas is similar to the one that caused a 2003 outbreak in Nigeria. Polio vaccines were rejected in northern Nigerian states after Muslim clerics claimed they had been contaminated with HIV and contraceptives. Sixteen 'polio-free' countries have reported cases since 2003.


Fortunately, according to the article, it looks like Yemen and Indonesia are taking this seriously and acting. There is no more information about the bone-heads in Nigeria. The spread appears to be a result of Muslim travel, either for work or pilgrimage.

This is another lesson in why we continue to vaccinate against diseases like polio. With the continual churning of people around the globe, we can't consider ourselves safe until the diseases have been eradicated from the earth. Even then, we'll want to keep a look out over our shoulder.

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Monday, May 09, 2005

A Moment of Gloating: High School Rankings

Newsweek has a list of the Top High Schools in the U.S., and I'm happy to report that my alma mater has done very well. It has been ranked #1 at least once in the past few years, and although it didn't quite get there this year, it still has a ranking to be proud of.

Since I've chosen to remain semi-anonymous I won't name the school. I'll just say that there's a low likelyhood that your high school was ranked higher than mine. Yes, this most likely makes me better than you--I'm sorry.

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Friday, May 06, 2005

Humor at the Expense of Kansas

Hearings are underway in Kansas where the board of education is hearing arguments about teaching evolution. Most scientists who would defend evolution have boycotted the hearings because they believe it to be set-up. Evolution is being defended by one lawyer who is donating his services to cross-examine critics of evolution (which includes people from the Discovery Institute). See The Pandas Thumb for updates.

There is some humor to the situation.

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Red State Rabble, run by a Kansas resident, is covering the events and has these images on the blog (go there to see larger versions):









Also via Mike the Mad Biologist is this one
(which is about Georgia, but just as applicable):


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Wednesday, May 04, 2005

The B.H. Roberts Episode

The circumstances surrounding the efforts of B.H. Roberts to publish his book, The Truth, The Way, The Life, are an interesting episode in Church history. Discussions of the relationship between science and the gospel frequently refer to the controversy and its outcome. It is beyond the scope of this post to recount all of the details of the episode; I only intend to highlight a few facts and what I consider to be reasonable conclusions. I recommend reading the resources I link to at the end of this post so that you can form your own opinion.

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B.H. Roberts intended his book to represent the summation of his thinking on the gospel. It was anticipated that the book would form the basis for a priesthood study manual. A reading committee, consisting of members of the Quorum of the Twelve (including Joseph Fielding Smith), was assigned to preview the manuscript and determine its fitness for publication. The committee objected to a number of items in the book. Most prominently, they objected to Roberts' interpretation of the creation, especially his discussion of a pre-Adamite race. The committee asked Roberts to remove the offending passages, which he refused to do. President Heber J. Grant agreed with the decision of the reading committee that the Church could not publish the book without modification.

Roberts apparently had been teaching some of his views in public. In response, Joseph Fielding Smith gave a speech where he said that pre-Adamites and death of life forms before the Fall of Adam were contrary to the doctrine of the Church. This speech was later published. Roberts was upset that Smith's views had been published while his book had not. Roberts protested Smith's views and asked the First Presidency whether they constituted the position of the Church.

The Quorum of the Twelve heard Roberts' case and later heard Smith's response. They then refered the matter to the First Presidency. The First Presidency responded with a memo to the General Authorities (available below) indicating that the Church had no position on the existence of pre-Adamites, and a further admonition to avoid speculative topics.

Because Smith's views attacking science had been published, there was concern that some would think that the Church was opposed to science. James Talmage gave his speech, The Earth and Man to counter-balance some of Smith's views. The speech was published by the Church.

A number of interesting points should be made about this episode:

1. Roberts did not argue for evolution. In Roberts' view, the proposed pre-Adamites were not ancestors of humans, but life-forms that existed before the Adamic dispensation and that were eliminated by a cataclysm. Thus most concepts belonging to evolutionary theory were not discussed at all.

2. Although there is no mention of it in the First Presidency memo, Joseph Fielding Smith sought to support his views by arguments from The New Geology, by George McReady Price. This book contained creationist arguments that sought to support traditional Christian views by exposing weaknesses in scientific theory.

3. Talmage was not on the reading committee--he became involved during the hearings before the full Quorum. Talmage was trained as a geologist but had been out of the field for a while. He wrote his son, also a geologist, in order to better defend geology and to discredit George McReady Price. In a letter to his son, Talmage related that in a quorum meeting he defended geology and attacked Price. He also said that he had examined the stones that were identified as belonging to Adam's altar, and that the stones contained fossils--therefore, there must have been death before Adam.

4. The controversy was largely non-personal. Neither side expressed personal hostility, although discussion was apparently heated at times and Roberts was somewhat disrespectful toward Joseph Fielding Smith in his letter to the First Presidency.

5. Concerning whether there were pre-Adamites, the First Presidency said that neither the views of Roberts nor Smith were official doctrine. President Grant's journal shows that he thought Roberts and Smith were both dealing in mysteries.

6. The 1931 letter asked the general authorities to avoid mysteries and leave science to scientists.

7. Talmage understood this to mean he should not discuss speculative issues concerning the gospel and science anymore. The exception was the talk The Earth and Man, as explained above.

8. The 1931 letter is out of context as used in the article on evolution in the Encyclopedia of Mormonism (although it still may be wise counsel).

9. In considering this episode, it is inappropriate to choose heroes and villians. The disagreements that were present were honest ones.

It is not clear how President Grant's admonition should be interpreted. Some have seen Joseph Fielding Smith's later book, Man, His Origin and Destiny, as a violation of President Grant's instructions. In fairness, however, it should be kept in mind that by this time John A. Widtsoe had published articles in the Improvement Era and his book, Evidences and Reconciliation, in which he gave some treatment to evolution and pre-Adamites. Given their extensive service in the Church, it is probably inappropriate to attribute impure motives or disobedience to either man.

In general Church discourse the views of Joseph Fielding Smith have been dominant, which some see as vindication of their correctness. Certainly they are more consistent with a straightforward reading of the scriptures. In contrast, mounting scientific evidence appears to contradict these views, which some may see as vindication of their view. One of the lessons that can be gleaned from this episode is that disagreement can be maintained without calling into question motives, intelligence, testimony, or commitment. President Grant's admonition is, at its roots, a call for patience.

References

The following sources are available on the internet (Note: Some of the articles erroneously place the Roberts episode in the context of evolution. However, they are still worthwhile and informative.):

1. The Story of the Truth, The Way, The Life, by James Allen.

The two following articles were published in Dialogue, then combined for printing in the book The Search for Harmony:

2. We Can See No Advantage to a Continuation of the Discussion: The Roberts/Smith/Talmage Affair, by Richard Sherlock

3. Discussion Continued: The Sequel to the Roberts/Smith/Talmage Affair, by Jeffery Keller

4. First Presidency 1931 memo

5. An edited version of the memo is also available here.

6. The Earth and Man, by James Talmage

7. Seers, Savants and Evolution, by Duane Jeffery

8. The Mormon Myth of Evil Evolution, by Michael Ash, as printed in Dialogue 35:4.

9. BYU Evolution Packet, including the evolution article from the Encyclopedia of Mormonism.

10. Can Science Be Faith-Promoting, by Sterling Talmage contains correspondence from Sterling Talmage, James Talmage, and Joseph Fielding Smith, including letters from Joseph Fielding Smith to George McReady Price.

11. This post is an outgrowth of comments to Gary's guest-post.

12. More of Gary's arguments are found here.

[This is a cross-post from Mormons and Evolution. Please comment there.

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Tuesday, May 03, 2005

Disturbance in the Geological Forces

Volcanoes are powerful forces of creation and destruction. They can cause new islands to appear and old islands to disappear. Perhaps not due to a volcano, but for some geological reason that is unclear, this blog has been changed from an "isle of the sea" to an "island or atoll"--at least according the geologists over at LDS Blogs.org. Hopefully their measurements don't indicate a trend predicting that this blog is heading toward the sea floor.

Back to volcanoes:

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The U.S. Geological Survey (USGS) today released the first ever comprehensive and systematic review of the 169 U.S. volcanoes and established a framework for a National Volcano Early Warning System (NVEWS) which calls for a 24-hour seven-day-a-week Volcano Watch Office and enhanced instrumentation and monitoring at targeted volcanoes...

According to the USGS report, since 1980, 45 eruptions and 15 cases of notable volcanic unrest have occurred at 33 U.S. volcanoes. About half of the most threatening U.S. volcanoes are monitored at a basic level and a few are well monitored with a suite of modern instruments. However, the report cautions, monitoring capabilities at many hazardous volcanoes are sparse or antiquated, and some hazardous volcanoes have no ground-based monitoring whatsoever. This poses a threat to people on the ground and in the air. Flying into an ash cloud can cripple a jet aircraft in flight. Tens of thousands of people fly over U.S. volcanic regions every day. (Source link)


I'm an east-coast guy, so I didn't realize that we have that many volcanoes. Apparently volcanoes are pretty predictable when monitored correctly--much more so than earthquakes. From news@Nature.com, here are the top ten priority volcanoes:
America's 10 most hazardous volcanoes

The score shown below is arrived at by looking at both the destructive capacity of each volcano, along with the people and property at risk.

1. Kilauea, Hawaii erupting now
2. St Helens, Washington erupting now
3. Rainier, Washington
4. Hood, Oregon
5. Shasta, California
6. South Sister, Oregon
7. Lassen Volcanic Center, California
8. Mauna Loa, Hawaii signs of unrest
9. Redoubt, Alaska
10. Crater Lake, Oregon


By the way, how would you like the job of monitoring a volcano? Seems kind of boring to me, but it might be offset by the fact that you could call yourself a volcanologist [vul'-can-ologist].

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Monday, May 02, 2005

We're Better Off With Blinders On

Some people, such as those at the Discovery Institute, believe that methodological naturalism limits the discovery power of science. After all, if we rule out supernatural explanations from the beginning, how will we ever find them? They argue that we need to take our blinders off.

Alright, let's take our blinders off for a moment and investigate the supernatural with a thought experiment. Now we believe that we are the true church right? If miracles (no philosophical arguments about whether miracles are "supernatural" are needed for this discussion) actually occur, of all people, we should be able to produce them. What kind of miracles should we look for? How about those associated with priesthood blessings, specifically the healing of the sick?

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Does this strike you, in your gut, as a bad idea? If so, it is probably because you have hit our first overriding assumption. And that is that God is willing to "play our game". When exercising the priesthood we are actually using His power, so in order for this study to be successful, we need His cooperation. Can we safely assume that He doesn't view this whole operation as sign seeking, the equivalent of giving in to the temptations of Jesus, and an abomination? Well for purposes of discussion, let's pretend that Pres. Hinckley has given us approval.

Now we get into the logistical problems. How are we going to set this thing up? We have several variables at play: the faith and righteousness of those administering the blessing, the faith and righteousness of the recipients, and the will of the Lord. We have no reliable way to determine any of these. Should the blessings be combined with medical treatment? How will we measure outcomes? Should we compare the outcome with the wording of the blessing? How long should we follow the status of the recipient of the blessing? How will we control for the placebo effect?

You can see we have a lot of problems with designing the study. But for the sake of argument, let's say that we figure something out and we see that people who have blessings do much better than people who don't. The next question to look at is what exactly happens. Can we only detect priesthood power by its effects, or can we measure something like electromagnetic waves? How are the cells of the body affected? What kind of changes in gene expression and physiology occur? We're entering into molecular biology here, which we can't really study in humans in any practical/ethical kind of way. We're going to have to move to either animal models, or perhaps tissue culture. Will moving the study away from humans ruin the whole thing? Do blessings only work on people? Maybe we could step back a bit and just "command the elements." What kind of "commands" will we give to animals or cell culture?

By now you are probably tired of this whole exercise--I think my point is made. There are a great number of places our experiments might fail--would we then conclude that blessings have no miraculous effect? For the believer, a more prudent conclusion would probably be that the tools of science are of limited use in this area. Spiritual phenomena are quite personal and generally not open to external study and verification. In fact this seems to be what the scriptures have taught all along. We've now wasted a lot of time and money.

So perhaps we are better off with our blinders on after all.

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