Category Archives: Blog

Photochemical Tissue Bonding: a light touch for battlefield injuries

File under “new theoretical tech that might end up looking vaguely like something out of Star Trek”: though they don’t provide much detail or any links to such, Gizmag reports briefly on Photochemical Tissue Bonding, which…

… can replace conventional sutures, staples and glues in repairing skin wounds, reconnecting severed peripheral nerves, blood vessels, tendons and incisions in the cornea.

And how does it work?

When treating an injury, a medic applies a dye to the wound, then briefly exposes it to green light. The dye absorbs the light, which helps it to molecularly bond proteins on the tissue surfaces. The result is what the researchers call a nanosuture, and it appears to be superior to conventional methods. “No glues, proteins or other materials are used that might stimulate an inflammatory response,” said Kochevar. “An immediate, water-tight seal is formed between the tissue surfaces leading to reduced inflammation in the near term and better scar formation in the long term.”

Find wound, smear gunge on it, beam light at it. Neat trick… though I expect that superglue and adhesive dressings will remain the cheaper option for some time to come. And neither of them need batteries, either.

I wonder what would happen if you used this on tissue that wasn’t injured, though. The body-mod crowd could do some really weird stuff with this technology once it becomes street-cheap.

The ever-more-invisible (and uncontrollably emergent) hand of the not-actually-free market

Via Chairman Bruce, the US government is getting (more) worried about automated trading in the wake of last week’s largely-unexplained and possibly emergent “stock tornado”; insert aphorism about horses and barn doors here, possibly modified to suggest that the farmer has been letting the horse run the stud for years.

Investment bankers are naturally keen to point out all the benefits of automated trading and “dark pools”:

Goldman Sachs Group Inc., the most profitable firm in Wall Street history, has shared memos with lawmakers and SEC officials that say computer-driven trading and an increase in stock transactions that occur off public exchanges has reduced consumer costs and brought more liquidity to markets.

Well, if we can’t trust Goldman Sachs, who can we trust? #scathingsarcasm

New MMO character type: the sociologist

I’ve been chattering on about the sociology of the metaverse for what feels like yonks (and long since it stopped being a trending topic), but academic interest in synthetic worlds and virtual realities shows no sign of abating, according to Ars Technica‘s round-up of recent MMO-related papers, journals and real-money research grants [via Nick Harkaway].

Give it a few more years, and there’ll be embedded ARG/MMO anthropologists. That’s the year you’ll see me heading back into the education system… 🙂

The Facebook backlash

Pride comes before a fall, so they say… and hubris is pretty much the same thing. Facebook’s rise to the dizzy heights of top-dog social network has been swift and relentless, but it looks like they didn’t know when to stop.

Suddenly it’s not just the data privacy wonks and open-source street-corner preachers that are bashing Facebook’s underhand and exploitative approach to user data (though organisations like the Electronic Privacy Information Center are busily filing FTC complaints in the US). Here’s Wired‘s Epicenter blog calling for an open alternative to Zuckerburg’s baby:

Setting up a decent system for controlling your privacy on a web service shouldn’t be hard. And if multiple blogs are writing posts explaining how to use your privacy system, you can take that as a sign you aren’t treating your users with respect, It means you are coercing them into choices they don’t want using design principles. That’s creepy.

Creepy is about right – The Guardian points us to a very pretty (and alarming) infographic thingybob by Matt McKeon that shows the evolution of the privacy sphere on Facebook. Quick summary: it’s taken five years for almost your entire profile to transition to public-by-default.

And then there’s the nefarious Facebook Connect system, which signs you up for applications without your consent should you happen to visit certain “partner sites”. Thankfully, Connect is pretty easy to squelch if you’re a Firefox/AdBlock Plus user [via Jason Ellis].

Part of me is tempted to hail this backlash as an inevitable and positive emergent function of a networked world – perhaps it’s now impossible for any one organisation to become disagreeably exploitative without the network becoming aware of it and alerting the general populace to the dangers. Like a governor for corporate greed… push the punters too far, and the loudest and most clued-up will make a lot of noise and start looking for the alternative. Or perhaps business models just have an exponentially shorter shelf-life these days… which is something I dearly hope to be true every time I see a new iteration of the Farmville genus of “games”.

But perhaps I’m being over-optimistic here; sure, pundits aplenty are banging fists on tables, and those of us for whom the internet is more home than hobby are justifiably concerned, but what about the vast majority of users for whom Facebook is just a fun and convenient way to waste time and stay in touch with people? These are probably the same people who have obvious passwords and who click on spam emails just to see what’s in them, and if the persistence of spamming as a lucrative career says anything, it says that no amount of telling people to think twice will actually make them do so.

Maybe Jason Stoddard’s model of the non-evil corporation is flawed, as it assumes that Joe and Josephine Average are more engaged with the issues underlying the services they use than they really are…

Glitch trading: narrativizing the actions of algorithms

Having mentioned the sensitivity of the markets with respect to the UK election results, it makes sense to point out Tim Maly’s recent post about automated trading programs and market movements.

The point is that 60% of stock trades are being done by machines, operating according to a set of algorithms and inputs, which (I’m pretty sure) do not include natural language parsing of the news.

Yet whenever the stock market makes a move, the financial press constructs post hoc narratives that explain what’s happened as a reaction to the news of the day, as if the news is what was was motivating the trades. […]

This fascinates me. Most stock market trading is being done by machines, but the stories we tell ourselves are about humans responding to new information. You can’t interview an algorithm about why it made a certain choice. In the absence of that knowledge, it seems clear that the financial press just makes educated guesses and acts as if correlation is causation. It’s speculative fiction.

Discuss. 🙂