Beta
×

Welcome to the Slashdot Beta site -- learn more here. Use the link in the footer or click here to return to the Classic version of Slashdot.

Thank you!

Before you choose to head back to the Classic look of the site, we'd appreciate it if you share your thoughts on the Beta; your feedback is what drives our ongoing development.

Beta is different and we value you taking the time to try it out. Please take a look at the changes we've made in Beta and  learn more about it. Thanks for reading, and for making the site better!

Comments

top

ACM Blames the PC For Driving Women Away From Computer Science

rbarreira Do they? (329 comments)

"With computing, the social element isn't always evident. They ask, 'how am I going to make a difference in the world with a computer science degree?'"

I've never heard someone saying a sentence like this in high school (girls or boys). Anyone?

about three weeks ago
top

Errata Prompts Intel To Disable TSX In Haswell, Early Broadwell CPUs

rbarreira Actual details of the bug? (131 comments)

Are there any actual details of how the bug works?

about a month ago
top

Kickass Torrents' KAT.ph Domain Seized By Philippine Authorities

rbarreira Impact on torrent traffic? (122 comments)

I wonder if there's any visible impact on torrent traffic from this. Obviously torrents will continue working and many people will just go to another website, but there could still be a small short-term impact. Would be interesting to see.

about a year ago
top

C Beats Java As Number One Language According To TIOBE Index

rbarreira Re:C? (535 comments)

The base stations that your mobile phone uses to make calls and access the Internet.

about a year and a half ago
top

Ask Slashdot: What Video Games Keep You From Using Linux?

rbarreira Re:Pretty much all of them (951 comments)

StarCraft 2: Legacy of the Void

Seems a bit early to try this one...

about 2 years ago
top

On Daylight Savings Time:

rbarreira Generalizations (475 comments)

Not true. My dog's food bowl is almost always full, and he only eats once in a while. Not fat at all, actually he's on the thin side if you look at his belly (adult Golden Retriever, 33 kg).

about 2 years ago
top

SHA-3 Winner Announced

rbarreira Re:Not vulnerable in the same ways? (100 comments)

It makes it somewhat more impressive when the vulnerabilities of SHA-2 are not known yet.

It's a new design, so without further knowledge all we can say is that it replaces "unknown vulnerabilities" with "unknown vulnerabities". Great :P

about 2 years ago
top

SHA-3 Winner Announced

rbarreira Re:Not vulnerable in the same ways? (100 comments)

I did not extrapolate that, I just said that this sentence in the summary does not sound impressive. In fact it should be a given that SHA-X does not suffer from the same vulnerabilities as SHA-X-1.

Oh and thanks for the spell check.

about 2 years ago
top

SHA-3 Winner Announced

rbarreira Not vulnerable in the same ways? (100 comments)

'Keccak has the added advantage of not being vulnerable in the same ways SHA-2 might be,'

Out of all the ways a hash function could be vulnerable, not being vulnerable to a few of them hardly looks impressive without more context... But what do I know, I'm not a crytographer.

about 2 years ago
top

Apple Wins Mobile Patent On Displaying Lists, Documents

rbarreira Re:I don't get it (306 comments)

Simply because there has already been a lot of precedences

Doesn't seem to stop tons of companies that register obvious and done-to-death stuff in patents...

about 2 years ago
top

Russian Superjet 100 Crashes During Demo Flight, Killing All Aboard

rbarreira Wrong (339 comments)

Looks like Airbus and Boeing will be getting some more customers. ...too soon?

No, just wrong. They took care of that problem by making sure the potential customers were in the plane, as the summary says.

more than 2 years ago
top

In Australia, Google Pays Just $74k Tax On Claimed Revenues of $200 Million

rbarreira It's not Reductio ad absurdum (345 comments)

It is called Reductio ad absurdum

That's bullshit. Reductio ad absurdum means taking a statement to its extreme implications (as your link says), but it does not mean taking a statement and distorting it to say something that it didn't imply.

more than 2 years ago
top

Prince of Persia Source Code Released On Github

rbarreira Re:Ouch (101 comments)

Indeed. And it's definitely not true that compilers always do a better job of optimizing than humans. Compilers are much better than they used to be, but for certain specific routines they still can't beat an expert Assembly programmer who can try out several strategies in a flexible optimize-benchmark-optimize feedback loop that compilers aren't able to do.

about 2 years ago
top

Prince of Persia Source Code Released On Github

rbarreira Re:Geeze (101 comments)

Perhaps they ported from disassembled binaries and not the original, cleaner and commented source.

about 2 years ago
top

Ask Slashdot: What Can You Do About SOPA and PIPA?

rbarreira Re:Spread the word (1002 comments)

but they don't get to feel the pain, instead its the intellectuals who use wikipedia.

If you think wikipedia is only visited by a bunch of intellectuals you must be from another planet...

about 2 years ago
top

Sprint Cutting Unlimited 4G Data Plans

rbarreira Re:Volume =/= liquidity (325 comments)

The end game is probably to trick other traders to think there's a real reason the price is going up, as with all bubbles they have ways to profit from it. But that's just my quick guess.

But I cannot give you definite answers, those algorithms are not public. What is public is the knowledge that they have tricks to find out bid information (via flash orders) which is supposed to be secret. All the side talk about volume, liquidity and price manipulation won't change that...

more than 2 years ago
top

Sprint Cutting Unlimited 4G Data Plans

rbarreira Re:Volume =/= liquidity (325 comments)

The act of trading does not affect price.

The "price" is the price at which the last trade was executed. When most of the volume is due to computer trading, they can at least temporarily manipulate the price (for whatever purposes the trading algorithm designers want to... they are getting more and more complex).

more than 2 years ago
top

Sprint Cutting Unlimited 4G Data Plans

rbarreira Volume =/= liquidity (325 comments)

Volume is not liquidity. If you have two computers trading a stock back and forth (in order to manipulate its price) that increases volume a lot but the liquidity is basically unchanged.

Then there are things like flash orders or whatever they're called which are neither about volume or liquidity but simply about giving an edge to those with a fast connection to the stock exchange... Essentially they can find out bid information which is supposed to be secret.

Your defense of HFT is weak.

more than 2 years ago

Submissions

top

Prince of Persia source code released on github

rbarreira rbarreira writes  |  more than 2 years ago

rbarreira writes "The source code for the original Prince of Persia game has been released on github by its author, Jordan Mechner. This release comes three weeks after Jordan announced the find of a box containing old floppy disks that had been forgotten in the back of a closet for 20+ years. A "digital archaeology" effort was launched to recover the contents of the floppy disks, with the help of Jason Scott from textfiles.com. Some photos from the "copy party" can be seen here."
Link to Original Source
top

rbarreira rbarreira writes  |  about 8 years ago

rbarreira writes "Xinhua online is reporting on the success of the first trial phase of an AIDS vaccine, which was started on March 2005. From the article:

"Forty-nine healthy people who received the injection showed no severe adverse reactions after 180 days, proving the vaccine was safe," said Zhang Wei, head of the pharmaceutical registration department of the SFDA. "The recipients appeared immune to the HIV-1 virus 15 days after the injection, indicating the vaccine worked well in stimulating the body's immunity," he told the press conference.
After the results are further analysed, 800 more voluntaries may be needed for the second and third phases of the vaccine's trial."

Journals

rbarreira has no journal entries.

Slashdot Login

Need an Account?

Forgot your password?

Submission Text Formatting Tips

We support a small subset of HTML, namely these tags:

  • b
  • i
  • p
  • br
  • a
  • ol
  • ul
  • li
  • dl
  • dt
  • dd
  • em
  • strong
  • tt
  • blockquote
  • div
  • quote
  • ecode

"ecode" can be used for code snippets, for example:

<ecode>    while(1) { do_something(); } </ecode>