Oh Baby!

A bunch of news outlets were recently publishing reports of a study that linked month of conception to a child's IQ. The researchers figured out that the kids conceived in June through August did the most poorly on standardized tests. Although I haven't read the original article, every report I've seen says that pesticide exposure at the time of conception is at fault - the idea pesticide use is typically high in the summer

And, you know, I'm willing to buy that the first three months in utero are pretty critical to a child's neurological development.

But presumably, they just did this by using the kids' birthdays, which would have also been linked to the test scores. So basically, they just have good correlation between date of birth and IQ. I mean, nobody found a way to measure their actual exposure to pesticides in utero, did they?

What I'm getting at, is why did they pick pesticide exposure at conception? It seems like there could be other good correlates: what about pesticide exposure at birth? Or allergen exposure at birth. After all, working backwards, these kids would have been born in March-May: springtime! Don't people get exposed to all sorts of weirdo chemicals as they prepare their gardens? Moms could easily transfer that stuff to their kids. Or maybe the kids are being exposed to pesticides in breast milk during their first summer.

Or maybe it's something else altogether: people alter all sorts of behaviours in the summer. Maybe they eat different stuff. Maybe they're exposed to more smog. Maybe the heat causes stress hormones to be released into the circulation of Moms-to-be.

Who knows? Maybe I need to read the original paper... but for the moment I'm not convinced.

Image from Petteri Sulonen and licensed under cc-by-2.0

probability.earthquake <- probability of coding success?

Over the past couple of weeks I've been learning how to use a new program called Splus. Well, actually, I mostly feel like I'm bashing my head against concrete. It's a statistical software package and I'm trying to code up some nice analyses. Which would be fine if I had any coding skills. I have to say that the help files are spectacularly unhelpful to a beginner.

Anyway, because I'm all new at this Splus thing, I've been reading the "useful tips" that pop up each time I start a new session.

Today's tip said:

"When an earthquake strikes, take cover under a desk or doorway. Try to avoid areas near windows or heavy objects that might topple, and above all, do not panic".

This seems like odd advice to include with a statistical software package. I can only conclude that I'll just feel like there's an earthquake happening in the event that I actually ever get some useful code together.

Media savvy

Erm, so if you pop a few pills your probability of dying is 75%???
And we thought we had an ageing population NOW.

Must confess: I got this from planet procrastination

Roots loses contact with planet earth.

A couple of weekends ago I was in the Eaton Centre when I was accosted by a young woman at the entryway to the Roots store. Spying our Gore-tex jackets and hiking boots, she correctly surmised that we might be "outdoorsy" types.

She wanted to sell us on this "great new product" that would help us on our hiking trips.

Air in a can. Yup, Roots is willing to sell us a can of 90% oxygen for the low-low price of $60. And once you use it all up, do not fret! It can be refilled for a mere $20!

According to Roots, flipping the little plastic nose cover up, bringing the cannister close to your face and spritzing while inhaling promotes mental alertness, relieves stress, increases energy and ability to concentrate.

WTF?!??

Uh, I have so many problems with this.

First - you have eviednce from what epidemiological/clinical studies exactly?

Second - My lungs are perfectly adapted to extract the amount of oxygen I need from the atmosphere thankyouverymuch.

Third - pure oxygen could damage my efficient little alveoli (the bits of my lungs that take in oxygen and release carbon dioxide). The atmosphere is actually made up mostly of nitrogen (not oxygen!) - it's only 20% oxygen. It's well-established that breathing 50-100% oxygen over a prolonged period of time causes lung damage. In fact, there are lung diseases where scarring occurs because of the presence of highly reactive oxygen radicals that are created when the lungs get all inflamed. Yuck. ...so is this cannister of 90% oxygen going to come with a warning label?

Fourth - $60 for something I can (continuously) get for free? You've GOT to be kidding me.

Fifth. Oh and so I'm going to lug this on the hiking trail with me?! Who did the focus groups with the outdoorsy people, I wonder? They didn't manage to figure out that most of us would want to reduce the weight we carry, that we're out there for the challenge and not a quick fix, that creating more "stuff" to send to landfill is unlikely to be our cup of tea.

Sixth - the salesgirl said "wouldn't it be better than breathing in that polluted air outside?" Aside from the fact I'd rather spend my $60 on reducing the amount of emissions I'm responsible for - is she suggesting I just attach this permanently to my nose? (besides, see #3) It's pretty hard to get away from outdoor or indoor pollution in Toronto and please tell me that they aren't really marketing this as a healthy alternative to our dirty air when the energy required to create and fill the cannisters probably caused some of the pollution?

Seventh - You know how athletes train at high altitude so that they can run faster? That's because there's less oxygen up there, so they are forcing their bodies to make more efficient use of the oxygen they do breathe. Which makes me wonder if overuse of Roots' new product could actually dampen the ability of your blood cells to transport oxygen around your body.

Eigth - are they trying to commodify air? I mean talk about tragedy of the commons. I think the most tragic thing would be that the commons ends up all owned and no longer common. (I'm not even going to get into bottled water here, people. But you can guess what I think of that). I refuse to even think about how someone could own my air.

Ninth - talk about a completely transparent attempt to sell me something, anything, for profit. Roots can take that attitude and shove it.

And ten: I leave this spot and all the numbers that come after ten open - for anyone who would like to add a thought.

Gettin' my Religion...

Clipart from Clipartheaven.com

Stereotyping is a bad idea. Folks, this is not news, but we all do it sometimes.

For example, I've been equating Evangelism with right-wing politics. Let's face it, I've been equating evangelists with right-wing Christian nutbars.

But it turns out that a bunch of evangelists in the U.S. are on the climate change bandwagon. The National Association of Evangelicals is collaborating with the Center for Health and the Global Environment at Harvard Medical School. Together, they are trying to convince the U.S. administration that they really need to do something about global warming.

It sounds like such a strange combination - and yet Harvard is potentially bringing a powerful segment of US social culture - one which was probably instrumental in Bush's election wins - into the climate change game.

And maybe what we need here is for politicians to get some climate change religion. If we could all just believe that climate change is really happening, that Manhattan could end up under water, and that 50% of species worldwide might die, wouldn't it be obvious that something should be done?

It's time to take global warming to heart, Bush. Don't worry, I know you've already taken Jesus into your heart - but I suspect He'll make room.

Moving Mountains

Apparently it is actually possible to move mountains - or, well, enough of them to have a noticeable effect, anyway.

The Swedish town of Kiruna is located on Kiirunavaara mountain. More to the point, it's above an iron ore min that is the economic driver of the town, supplying most of the local jobs. You might expect a sad story about how the mine will soon clase and the little Arctic town will die, precipiotating the demise of a way of life...

But no! Fear not. There are still 800 million tonnes of crude ore in the ground. While there's no danger of running out of ore to mine just yet, it seems that enough has been taken away that the foundations of the town above it are becoming unstable.

So they've decided to move a big chunk of the town away from the mining area. They picked the new site just this month.

Sounds like a costly endeavour - and it is - on the order of ~4.3 billion US dollars, not including rerouting the railway and roads. To move about half the building in the town by about 4 km. But I guess the income from the mine must be worth it, since it sounds like there aren't too many Kirunians making much of a fuss... or should I say, undermining the mayor's plans...

I spy, with my little dime...

Last week the US issued a warning to US defense contractors about Canadian coins that might contain radio frequency transmitters inside them. The transmitters could presumably be used to track the movements of the people carrying them (no hints about which coins had the transmitters).

It all sounded very odd to me. After all, if the person being spied on was staying in Canada, you'd think they might spend the coin without knowing it - which makes it, er, a little tricky to follow the person who doesn't have it anymore. And if they ended up back to the US - or in any other country, you'd think they would empty their pockets to avoid carrying around the useless coin. So you'd probably be tracking the location of the dresser in their bedroom.

I guess you might get an idea of where these defense contractors live - but that's about it. I don't think you'd be guaranteed to find out anything about where they go day-to-day over the long term.

Well - lately, the US has retracted their claim about the transmitters. There seems to be no statement affirming that the transmitters weren't there. It's all so bizarre. Perhaps the Americans were just mystified by our two-toned currency?

I would like to think someone was doing some nifty study in Canada about where our currency goes while it's in circulation: "The Wonderful Journeys of Fred the Quarter or Terry the Toonie" sort of thing.

Now that would be cool.

The Ride Program

Happy New Year!! It's a night when most of us might have a drink or so - but it's important to get home SAFE and sound. Whether that means taking transit, having a desginated driver, or waiting around for a cab - you gotta make sure your ride is taken care of.

One of Discovery's top 12 Biology stories of 2006 is about some wierd little worm that has evolved to have no mouth, no guts, and no excretory organs. Instead, it has a series of bacteria living beneath its skin which cooperate with each other and with the worm to somehow create energy for the worm and get rid of it's waste. What do the bacteria get out of the relationship?
Well, a place to hang out - and a free ride, obviously!

See y'all in 2007!