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Eye Problems From Space Affect At Least 21 NASA Astronauts

kurthr Astronauts lose 20/10 eyesight! (109 comments)

Astronauts tend to be proud of their eyesight... like Chuck Yeager:

From the early days of test pilots and the original Right Stuff astronauts they've typically had much better than 20/20 eyesight.
So it's probably easy to detect this sort of thing, and they might be a little ticked off to loose it :^O
Of course a lot of people would go to space even if they went blind... most of us risked that in Junior High School anyway!

about 5 months ago

Moore's Law Blowout Sale Is Ending, Says Broadcom CTO

kurthr Re: 350mm (18inch) wafer (267 comments)

Are you aware that 350mm is less than 14in, and that the actual wafers are 450mm (almost 18in)?
Note also that the larger size doesn't inherently reduce cost or increase yield, much less improve performance (density or speed).
It may however follow Rock's law that the price of a semi fab doubles every 4 years... (this set should hit $5B) .

about a year ago

Surgeries On Friday Are More Frequently Fatal

kurthr Re: One day must be the worst (152 comments)

You obviously haven't read the article which contains the graph showing that the risk of death due to elective surgery grows monotonically approaching the weekend. By the weekend, scheduled elective surgeries are almost twice as likely to kill you.
Two days are the worst, they are on the weekend, and the closer your surgery recovery is to the weekend the worse the expected outcome- 40%worse on Friday.

Read the fine documentation...

about a year and a half ago

Surgeries On Friday Are More Frequently Fatal

kurthr Re: Statistics can be misleading (152 comments)

These are scheduled elective surgeries, not emergency admissions!

Our analysis confirms our overall study hypothesis (with some heterogeneity) of a âoeweekday effectâ on mortality for patients undergoing elective surgeryâ"that is, a worse outcome in terms of 30 day mortality for patients who have procedures carried out closer to the end of the week and at the weekend itself. The reasons behind this remain unknown, but we know that serious complications are more likely to occur within the first 48 hours11 after an operation, and a failure to rescue the patient could be due to well known issues relating to reduced and/or locum staffing (expressed as number and level of experience) and poorer availability of services over a weekend.

about a year and a half ago

Surgeries On Friday Are More Frequently Fatal

kurthr Re: Statistics can be misleading (152 comments)

So can explanations of statistics... if the emergency staff available at the hospital is lacking, it won't matter that the surgeon is there. Also, it doesn't explain why those entering on Saturday are worse than those on Friday!
Sounds bites from question time are, just that...

about a year and a half ago

Surgeries On Friday Are More Frequently Fatal

kurthr but tee are better! (152 comments)

Most hospitals have restrictions on non- emergency surgeries over the weekend, because they have very limited staff.
However, surgeons are very powerful (especially those who do elective surgeries that bring in big $) and they often prefer to schedule surgeries around their own convenience rather than that of their patients or other hospital staff.

Stanford hip replacements are a known example.

about a year and a half ago

IRS Spent $60,000 Producing Star Trek Parody

kurthr Re:Responsibility and Punishment (280 comments)

Oops I left off the other 000.
They are raping us for 10,000,000x more than this. So just forget about it.
Every single federal employee could throw a party like this and it would still be much cheaper than the bailouts.

about 2 years ago

IRS Spent $60,000 Producing Star Trek Parody

kurthr Responsibility and Punishment (280 comments)

This was pretty obviously a waste of money and unjustifiable...
Probably someone (junior) will be fired, hopefully someone senior will be prosecuted...
None of them have the political backing to really be protected.

Our banking overlords OTOH are only raping us for 10,000x more than this so it's hard to be too upset.

about 2 years ago

Report Says Climate Change Already Evident, Emissions Gap Growing

kurthr Re:Cap and Trade solves everything! (623 comments)

No, hasn't.
It was signed into law by Schwarzenegger, but it doesn't take effect until 2013...
I don't like cap and trade, but you're just trolling... the rest of the comments on this thread are no better.

more than 2 years ago

Microsoft Buys Multi-Touch Pioneer Perceptive Pixel

kurthr Re:Remember the gorilla arm syndrome (85 comments)

Hmmm, but you don't work at the whiteboard/chalkboard to be individually productive. You do it in order to be seen from a distance without technological assistance.
Would you choose to do the rest of your work on a vertical 200" workspace? I doubt it.

Oh, and I am amazed that you have purchased non-tactile chalk... does it exude an anesthetic?
Touchscreens are tactile... you touch them.

more than 2 years ago

Locked-Down Tablets Endanger FLOSS For End Users

kurthr ZOMG M$ might be like Apple :O (242 comments)

Speculation and fear mongering... Google could be more like FB. Slashdot could be more like reddit.

In particular, M$ is touting their enormous number of programs that run on Win8 (even if not in the Metro tiles).

There are enough bad things that might happen with some actual substance, why not worry about those.

more than 2 years ago

Antivirus Pioneer John McAfee Arrested In Belize

kurthr Never could have happened here... (367 comments)

That never would have happened to a rich white guy who lived in a nice neighborhood in the US... unless he was protesting the government, or beating his wife.

more than 2 years ago

1981 Paper's Predictions for Global Temperatures Spot-On

kurthr Re:monkeys throwing darts... (371 comments)

They don't need to, because large corporations with $billions to lose don't fund "think tanks" and astroturf campaigns to instill "doubt" in scientific consensus.

Oh, and smoke up! Cigarets are good for you :)

more than 2 years ago

Ask Slashdot: Why Aren't Schools Connected?

kurthr Re:Fact check (568 comments)

Next time before spewing "facts", please check where they come from!
When I try to google Mercatus, the first auto complete is Koch brothers...
The idea that we spend on average ~$90k/yr/child is hilarious. We only spend that much money on prison inmates.
The real number is ~$10k including the school lunch program, buses, and janitors.
That's comparable to the overhead cost of a class A building for a relatively low paid employee... Ok seems about right.
Oh you want to educate them too? Then throw in an "overpaid" teacher who makes 40-60k/year (gets summer off but grades at night/weekends).

Simple check. There are 12 years between 18-6 ages. The average life expectation is 72 years. So very roughly 1/6th of the population is of public school age.
There are over $300m us citizens and so there are ~50m school age students. If we were spending $100k/student/year on it would be $5T/year or half the GDP. FAIL!
Oh wait, you mean they ballooned the number by adding up 10 years together and it's actually less than $10k/yr?
You mean they only use 10 years so that they can make countries that stop education at 15 look better?

Ok 5% of GDP I'll accept that, but it's still well below what many other countries spend so no big surprise.

How much do other countries actually spend?

So we are ahead of Bhutan and Cameroon, but well behind Columbia. Congratulations!
Hmm... actual data that hasn't been so twisted by insane ideology that it at least passes a smell test.
Please learn to use the Internet.

more than 2 years ago

Facebook To Share Private Data With Politico

kurthr Santorum???!!!! (157 comments)

Does that mean that any time someone discusses that "byproduct" it will be linked to the presidential candidate? :O
That would be awesome! Will the comments be more negative than positive... which social groups?

Next president... Lincoln Free Beer!

about 3 years ago

Programming Prodigy Arfa Karim Passes Away At 16

kurthr Re:Reading the early comments... (536 comments)

It is really terrifying that you got modded for that, and it wasn't funny. :O

about 3 years ago

Ask Slashdot: Changing Career From OLTP To OLAP Dev

kurthr Re:Define, please? (129 comments)

OLTP - Online Transaction Processing. An application/database designed for larger, equal, or nearly equal volumes of database inserts, updates, and deletes, as there are reads. The database is generally more (and often highly) normalized, meaning that there is less data duplication across tables and/or within tables.
OLAP - Online Analytical Processing. Essentially a data warehouse designed for larger volumes of reads than there will be inserts, updates, or deletes (often relatively very, very few deletes). Less normalized meaning that there may be duplicated data across and/or within tables in order to increase query speed at the cost of possible consistency issues due to the data duplication.

Mark this informative comment the hell up!
And smash my Karma if you want to, but the (four letter) acronyms really didn't help the article much.

about 3 years ago

World's Largest Passenger Plane May Be Unsafe, Some Say

kurthr Re:Bad call by a union, nothing more (394 comments)

You are correct in the case of airplanes and other macro structures...

But, interestingly the little mirrors in your TI based DMD/DLP movie projector use aluminum hinges.
They bend ~1% strain @540Hz for ~20khr before failing and that's >10^10 cycles!

Why? because the hinges are thinner than a grain size and so dislocations don't propagate.
Cool :)

about 3 years ago



Traffic sniffing on the NYSE drives trades/profit?

kurthr kurthr writes  |  more than 5 years ago

joeblo writes "There are recent rumors that Goldman Sachs may have been front running everyone in the market to the tune of $100M/day.

"That Goldman Sachs may just possibly have used security access codes and built a system to acquire trading information PRIOR to transaction commit time points at NYSE."

It is well known that GS has comprised as much as 30% of all NYSE daily traffic over the last several months and more than 50% of high speed program trading.

As a "liquidity provider" they have also been give extraordinary access to the NYSE exchange and their network. High speed quantitative trading is also well known, but in recent months various technical trading parties say that the market has been acting very strange with long held correlations falling apart. That along with the arrest of a (until recently) GS employee for allegedly stealing their code has led to some wild speculation.

"The bank [Goldman Sachs] has raised the possibility that there is a danger that somebody who knew how to use this program could use it to manipulate markets in unfair ways," [Asst. U.S. Attorney] Facciponti said, according to a recording of the hearing made public yesterday. "The copy in Germany is still out there, and we at this time do not know who else has access to it." Bloomberg

Which raises the question why it's unfair, if someone other than GS uses the code to manipulate markets?

Do any of the quant nerds reading Slashdot have comments on the possibility of this? Even if the less wild allegations prove true, it seems difficult to have true market pricing when a single participant controls such a large fraction of trades, and almost all crucial trades near 'the bell'."

Link to Original Source


CES 2008 Hall of Shame

kurthr kurthr writes  |  about 7 years ago

Romana Reynolds writes "The CES 2008 Innovations Design and Engineering Awards Showcase honored the Atom Chip Corporation, which was exhibiting the same 100GB, 500GB, and 1TB "quantum optical" memory chips back in 2006. We actually wandered by, but long gone are the "SolarMemory" chips, and he didn't know anything about Duke Nuk'em Forever.

A little easy digging shows that they'd been making the same extraordinary claims and exhibiting prototypes at CES during the past three years, long enough to make "atom chip hoax" the fourth suggestion on typing "atom chip" into Google. Atom Chip Corporation's web site bids us all "Welcome to the World of Nanomicrons and Beyond." Which is a world smaller than a meaningful subatomic unit, the proton.

I'm amused that the "preeminent" panel of judges failed their vetting and gatekeeping functions. But I fear that Atom Chip will gather investors based on their recognition at CES, and continue in the game for many years to come, while honors at CES become a Hall of Shame."


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