When I'm in the kitchen baking my weekly loaf of bread, one of the podcasts that I often listen to is the Science Magazine podcast. One of the presenters continually makes "ah" noises when she listens to people explaining things, which is annoying, but apart from that it's pretty good listening.
This week the had a short segment on bees that led me to this PNAS paper. Bees, as you will probably be aware are suffering a decline in numbers. A decline that will potentially cause a significant impact on agriculture. The cause of this decline has for a long time, not been understood. Which hasn't stopped large numbers of people dispersing whackadoodle theories on facebook sadly.
Recently though, there have been indications that neonicotinoid insecticide may be a contributing factor to the problem. Which is unfortunate because neonicotinoid insecticides work quite well are are quite widespread. It's sufficiently serious that the EU is moving to ban them though. The recent PNAS study casts an interesting light on the matter though. Honey, as we all know is packed with good stuff. The interesting (and obvious in hindsight) is that some of the good stuff in honey helps the bees rudimentary immune system remove unwanted substances from their bodies. There is a compound called p-coumaric acid which is a component of pollen cell walls, which up regulates genes that deal with the removal of unwanted chemicals, as well increasing the activity of a while bunch of antimicrobial peptide genes.
Something similar becomes evident when you look at the bees diet. A varied diet is required for bees to produce sufficient amounts of a hormone called glucose oxidase - used to sterilise the food fed to larvae.
You might not think much of this given that bees have lots of honey. The problem being that commercially farmed bees (is farmed the right word there? hrrmm) don't get that much honey - the beekeepers take their honey and replace it with sugar syrup. And while sugar syrup might give the bees sufficient calories to stay alive, it doesn't have the compounds which help the bees immune system.
So while the neonicotinoid insecticides probably aren't helping, at the same time that we're dosing them with the insecticide, we're removing their ability to cope with it. Bees feeding largely on a single crop in mono-culture heartland, I imagine probably fare even worse.
It demonstrates quite nicely I think, that the quick, obvious answers are not always right. Or at least not always right for the reasons that we think we are. And that is important because that can influence how we deal with said problems. All in all, an interesting, important and nuanced problem. And one more reason to hide the feed of the next person who posts some unsubstantiated claim about power lines or cell phone towers being responsible for bees disappearing on my news feed.
Friday, May 10, 2013
Monday, April 22, 2013
You call that an argument.
Worst argument against the Labour/Green energy sector reform goes to Colin Espiner:
Since when has it been written that politicians are only allowed to tackle the easy problems?
"It's a long time since the Max Bradford power reforms of the early 90s. I remember them well - I covered them as a young reporter. There's little doubt turning electricity into a private commodity and setting up an electricity marketplace has led to higher power prices for residential consumers. And also lower prices for industry.In other words, the power industry has had a free ride for the past couple of decade and we're about to hand a decent chunk of that easy money to private investors. We shouldn't try to fix the imbalance because it's really really hard.
The reforms did make the whole industry much more complicated and possibly didn't work as intended. But that doesn't mean unpicking them is either desirable or even possible without creating far more upheaval than it's worth. "
Since when has it been written that politicians are only allowed to tackle the easy problems?
Labels:
bad arguments,
energy,
politics
Thursday, April 18, 2013
Sorry, what?
I have to admit to being taken somewhat by surprise. This, at a casual glance appears to be actual policy coming out of Labour. Yes, it's coming from the Green's as well, but that's not surprising, they've had actual policy policies for quite sometime.
The idea of a central buyer works for the pharmaceuticals industry - or rather, it works for us in curbing some of the excesses of the pharmaceutical industry. It's not perfect, but it's significantly better than any alternative that I'm aware of. It'll be interesting to see how the idea of a central purchaser works for the electricity industry stands up to the economists and the pseudo-economist blogoshpere.
Another one or two of these and I might actually begin to consider the possibility that Labour could conceivably,at some point in the future, maybe get their shit together.
The idea of a central buyer works for the pharmaceuticals industry - or rather, it works for us in curbing some of the excesses of the pharmaceutical industry. It's not perfect, but it's significantly better than any alternative that I'm aware of. It'll be interesting to see how the idea of a central purchaser works for the electricity industry stands up to the economists and the pseudo-economist blogoshpere.
Another one or two of these and I might actually begin to consider the possibility that Labour could conceivably,at some point in the future, maybe get their shit together.
Tuesday, April 16, 2013
Throwing the baby out with the bathwater
I was asked for an opinion yesterday on a report by TV3 on a new diet proposed by a researcher in Auckland. Quickly following that in the conversation were references to a chap by the name of Dave Asprey, aka the bulletproof exec and a surgeon by the name of Peter Atia who runs a website called the eating academy. Both of these appear to be body hackers - customizing their diet and finding what works for them.
As far as science reporting goes, TV3 is probably one of our better media organizations, which means that I have exactly zero faith in them to not over hype the result of a single study. Despite this, my response to the TV3 report was, I believe a statement of there being insufficient research (that I could find) regarding the work the researcher proposed or the actual diet.
As for the bulletproof execs site - I am somewhat more dubious. This guy is a body hacker. There is absolutely nothing wrong with this. More power to him. Fair enough, his website documents his story, and even better his story is scattered with references to actual research. The science around nutrition is incredibly complex though. And my impression of the science referenced is that a lot of it is very specific, very focused, on small sample sizes and over limited time frames. Asserting recommendations at the level of diet from these is ... troublesome. My level of respect drops even further when there are references to causes and cures for autism, a fundamental misunderstanding or misrepresentation of epigenetics, and the site is selling a book suggesting that you can improve your babies genes whilst it's still in the womb (not to mention using the heading "Darwin was wrong" in a discussion of genes - Darwin didn't even know about genes for fucks sake - sorry, this one always bugs the crap out of me when it gets trotted out).
As for the Peter Atia website - I offer no thoughts, I haven't the time nor the inclination to look at it in depth. Though I will add that the fact that it's a surgeon writing it is no redeeming feature. Doctors can, but don't necessarily make good scientists. And over the years I've seen some doctors come out with some right clangers - surgeons being amongst the worst. Suggesting we should give them more credit because of a medical degree is similar to the logical fallacy presented in many arguments - the appeal to authority. As with pretty much all topics where I am able to offer an opinion, I will go and look at the other work related to the topic at hand that then individual has done and assess them based on that.
Look. These body hackers have found something that works for them. Using dribs and drabs of cherry picked studies and using them to back up their products - scientific, it is not. I'm not, in other words, throwing the baby out with the bath water. There might very well be something to the diets they propose - indeed, I would suggest that at the very least the actual diets they propose could very well deserve closer examination. The fact that they are referencing relevant science is to be applauded - the fact that they can't get some of the basic details right when they are using that science is being used to back up products, not so much. Read these body hackers blogs - take ideas from them and try them, see what works, what doesn't for you as an individual. It could be described as a process that takes inspiration from the scientific process (yay!), but without major work, it remains the experience of an individual (or small group of individuals) rather than solid science.
And yes researchers are beginning to look seriously at various diets and the consequences of different foods types on our health - I work with some of them and have have participated in at least one study looking at effects of given diets (as a subject). It's likely that our knowledge of nutrition and health is barely scratching the surface and a lot of what is currently considered common knowledge is at best woefully incomplete. My best guess at the moment given how diverse we are as a species, is that the answer is a damn site more complex than anyone who is selling something wants you to believe. Me, I'm eating a vaguely healthy diet and waiting for the Cochrane review.
As far as science reporting goes, TV3 is probably one of our better media organizations, which means that I have exactly zero faith in them to not over hype the result of a single study. Despite this, my response to the TV3 report was, I believe a statement of there being insufficient research (that I could find) regarding the work the researcher proposed or the actual diet.
As for the bulletproof execs site - I am somewhat more dubious. This guy is a body hacker. There is absolutely nothing wrong with this. More power to him. Fair enough, his website documents his story, and even better his story is scattered with references to actual research. The science around nutrition is incredibly complex though. And my impression of the science referenced is that a lot of it is very specific, very focused, on small sample sizes and over limited time frames. Asserting recommendations at the level of diet from these is ... troublesome. My level of respect drops even further when there are references to causes and cures for autism, a fundamental misunderstanding or misrepresentation of epigenetics, and the site is selling a book suggesting that you can improve your babies genes whilst it's still in the womb (not to mention using the heading "Darwin was wrong" in a discussion of genes - Darwin didn't even know about genes for fucks sake - sorry, this one always bugs the crap out of me when it gets trotted out).
As for the Peter Atia website - I offer no thoughts, I haven't the time nor the inclination to look at it in depth. Though I will add that the fact that it's a surgeon writing it is no redeeming feature. Doctors can, but don't necessarily make good scientists. And over the years I've seen some doctors come out with some right clangers - surgeons being amongst the worst. Suggesting we should give them more credit because of a medical degree is similar to the logical fallacy presented in many arguments - the appeal to authority. As with pretty much all topics where I am able to offer an opinion, I will go and look at the other work related to the topic at hand that then individual has done and assess them based on that.
Look. These body hackers have found something that works for them. Using dribs and drabs of cherry picked studies and using them to back up their products - scientific, it is not. I'm not, in other words, throwing the baby out with the bath water. There might very well be something to the diets they propose - indeed, I would suggest that at the very least the actual diets they propose could very well deserve closer examination. The fact that they are referencing relevant science is to be applauded - the fact that they can't get some of the basic details right when they are using that science is being used to back up products, not so much. Read these body hackers blogs - take ideas from them and try them, see what works, what doesn't for you as an individual. It could be described as a process that takes inspiration from the scientific process (yay!), but without major work, it remains the experience of an individual (or small group of individuals) rather than solid science.
And yes researchers are beginning to look seriously at various diets and the consequences of different foods types on our health - I work with some of them and have have participated in at least one study looking at effects of given diets (as a subject). It's likely that our knowledge of nutrition and health is barely scratching the surface and a lot of what is currently considered common knowledge is at best woefully incomplete. My best guess at the moment given how diverse we are as a species, is that the answer is a damn site more complex than anyone who is selling something wants you to believe. Me, I'm eating a vaguely healthy diet and waiting for the Cochrane review.
Labels:
bad arguments,
science
Thursday, April 4, 2013
The big dreams are hidden
There is a need for projects that require exceeding our current abilities. When we are pushed, we can achieve great things. A prime example I think, was the space race. What the Americans especially pushed themselves to do when confronted by the possibility of Russian dominance of space was quite simply, awe inspiring. It was expensive yes, but the benefits that flowed from it far surpassed the money that was put into it. The political will faltered and now NASA seems to remain, perpetually 20 years away from putting a man on Mars.
It's not that these projects don't exist any more. They do - I'm thinking here of the various plans currently being formed to bring asteroids into earth or moon orbit and mined. The SpaceX challenge got us privately owned space flight. And I'm not just talking about space exploration. There are groups that would see us use our knowledge and abilities to decrease human suffering. There are projects aimed at bringing sustainable and non-polluting electricity and refrigeration to large areas that currently don't have it. The thing to notice though is that they all tend to be privately led rather than public ventures.
I'm not entirely sure whether this is a good thing or a bad thing. On the plus side, thing are getting done. On the downside though, these things are not in the public eye. Our societies are not looking to the better worlds that we can build. In the debates about climate change the general response of governments has been to submit to the primary source of activity, unfortunately in this case, opposed to any activity at all. It's as if the governments of the world have opted to follow rather than lead.
And it's not that it's not possible financially, for governments to lead the way. The choice is one of the distribution of funds. As much as I would like humanity to be striving outwards into space, I think it applies just as much to other projects - reducing the effects of poverty, living sustainably or making lives longer and better.
Thus ends my somewhat maudlin reflection for the day.
It's not that these projects don't exist any more. They do - I'm thinking here of the various plans currently being formed to bring asteroids into earth or moon orbit and mined. The SpaceX challenge got us privately owned space flight. And I'm not just talking about space exploration. There are groups that would see us use our knowledge and abilities to decrease human suffering. There are projects aimed at bringing sustainable and non-polluting electricity and refrigeration to large areas that currently don't have it. The thing to notice though is that they all tend to be privately led rather than public ventures.
I'm not entirely sure whether this is a good thing or a bad thing. On the plus side, thing are getting done. On the downside though, these things are not in the public eye. Our societies are not looking to the better worlds that we can build. In the debates about climate change the general response of governments has been to submit to the primary source of activity, unfortunately in this case, opposed to any activity at all. It's as if the governments of the world have opted to follow rather than lead.
And it's not that it's not possible financially, for governments to lead the way. The choice is one of the distribution of funds. As much as I would like humanity to be striving outwards into space, I think it applies just as much to other projects - reducing the effects of poverty, living sustainably or making lives longer and better.
The big projects are there, but because the governments are involved any more the public doesn't see them. Which means that we end up with the problems of everyday life as our focus, they become our life rather than problems we have to solve so as to be able to create a better world.When someone says, “We don’t have enough money for this space probe,” I’m saying, “No, it’s not that you don’t have enough money. It’s that the distribution of the money that your spending is warped in some way that you are removing the only thing that gives people something to dream about tomorrow. You remember in the ‘60’s and 70’s, you didn’t have to go more than week before there was an article in LIFE magazine about, “The Home of Tomorrow,” “The City of Tomorrow,” or the “Transportation of Tomorrow.” All that ended. After we stopped going to the moon, it all ended. We stopped dreaming.”-Dr. Neil deGrasse Tyson on the defunding of NASA.
Thus ends my somewhat maudlin reflection for the day.
Labels:
climate change,
optimism,
space,
sustainability
Tuesday, March 26, 2013
Exasperation coming on.
I have a lot of respect for the wisdom of Sir Bob Jones that he shares with us via his column in the herald. No, wait, that's a lie. I've got sod all.
The market will solve everything. That's this week's broken record message. In this case he's telling us that the market will take care of Auckland's housing crises. The government (local and national I presume) should butt out and let that holy of holies take care of everything. Seriously, has the man learnt nothing from the past 30 years. The market can be an efficient tool at times and it shouldn't be done away with completely.
It's not some bloody wondrous fix-everything type tool though. Like any system, it has it's own biases. For one thing, the market tends to follow the money. It doesn't really like to pay to much attention to the poor until such point in time as the poor, collectively, have enough money to make large investments worthwhile. So as much as Jones fantasises otherwise, the market is not going to step in and offer the poor better housing, there's not profit in it because, funnily enough, the poor have sod all money.
Of course, he could be imagining that the market will step in and build large numbers of expensive houses which flood the supply chain and bring the current medium value housing into affordability for the poor. That relies on more housing being built than our current growth rate requires. Eventually, we may be able to do that. It's going to take a long, long time though and in the meantime, the low and medium income earners just have to suck it.
Market systems indisputably produce the best outcomes but inherent in them is volatility, failing which they're not functioning properly. We need to recognise that and have less infantile handwringing when balances swing one way, confident that in the course of time they'll be self-correcting.This is the bit that gets me. Let the market sort it out he says. Have confidence that any imbalances will be self correcting. 1) They not always self correcting and 2) that infantile hand-wringing? That's because it's it's actual people living in poverty, not just some bankers bottom line that is coping with that volatility.
What an arse.
Labels:
bad arguments,
bad ideas
Thursday, March 14, 2013
Well that's ... encouraging
I suspect I'll be reading stuff.co.nz a little more in days to come. Not that I'm enthralled with their reporting mind. It's more of an ... organisational thing. They have apparently just hired a chap called Harkanwal “Kamal” Singh, who, to be honest, I wouldn't know from a bar of soap. The capacity in which he has been hired though is "Data Journalist".
There is a large amount of data floating around our world at the moment. And even though much of it might be technically accessible, very little is actually accessible by the general public. Primarily because of the sheer volume. I'm reasonably conversant with how to navigate large amounts of data but I have neither the time, nor the background to be able to ask the right questions. There has been for a while now, a small but noticeable movement in some journalism circles towards extracting stories from the large amounts of data that is available. Data driven journalists have even been putting together guides to help get more journalists trawling through the data.
Needless to say, I'm a large fan of the idea. In years to come I hope it becomes a core part of journalism - extracting what we need to know from bodies of data that the rest of us have neither the time nor the skill to navigate. The fact that there are people paying attention to this sort of thing gives me hope. Just as I suspect that the little burst of disappointment that comes along almost every time I read a story in our media that use statistics in anyway comes from how badly it is currently done.
There is a large amount of data floating around our world at the moment. And even though much of it might be technically accessible, very little is actually accessible by the general public. Primarily because of the sheer volume. I'm reasonably conversant with how to navigate large amounts of data but I have neither the time, nor the background to be able to ask the right questions. There has been for a while now, a small but noticeable movement in some journalism circles towards extracting stories from the large amounts of data that is available. Data driven journalists have even been putting together guides to help get more journalists trawling through the data.
Needless to say, I'm a large fan of the idea. In years to come I hope it becomes a core part of journalism - extracting what we need to know from bodies of data that the rest of us have neither the time nor the skill to navigate. The fact that there are people paying attention to this sort of thing gives me hope. Just as I suspect that the little burst of disappointment that comes along almost every time I read a story in our media that use statistics in anyway comes from how badly it is currently done.
Labels:
journalism,
open data,
statistics
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