Domain: duke.edu
Stories and comments across the archive that link to duke.edu.
Comments · 674
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Re:Americans are obsessed with microbes
Certainly now, but not as the term was first used -- There are references to Listerine ads from the 1920s that feature halitosis. The earliest article in your link runs back to 1965. The first AMA publications I could find on the topic are from ~1931. (here, here, and here)
All three of these question the claims of Listerine to do anything to kill bacteria and germs. (It should be noted that at the same time, the AMA's 'popular' magazine included some more positive appraisals of Listerine.) Listerine's advertising efforts under the name of science appear to go back before 1910 or 1905, although I could not find the term 'halitosis' much before the above links from 1931.
So the point is that I can not say who created the term, not having done enough research, and not really caring to...
heh. After these posts I do want to go buy Listerine, though.
BTW, there is a whole other mess regarding Listerine: IP and trade secrets. Interesting to read about if... well, never, actually. -
Re:Americans are obsessed with microbes
Certainly now, but not as the term was first used -- There are references to Listerine ads from the 1920s that feature halitosis. The earliest article in your link runs back to 1965. The first AMA publications I could find on the topic are from ~1931. (here, here, and here)
All three of these question the claims of Listerine to do anything to kill bacteria and germs. (It should be noted that at the same time, the AMA's 'popular' magazine included some more positive appraisals of Listerine.) Listerine's advertising efforts under the name of science appear to go back before 1910 or 1905, although I could not find the term 'halitosis' much before the above links from 1931.
So the point is that I can not say who created the term, not having done enough research, and not really caring to...
heh. After these posts I do want to go buy Listerine, though.
BTW, there is a whole other mess regarding Listerine: IP and trade secrets. Interesting to read about if... well, never, actually. -
Yeah, and while we're at it...
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References - copyright, fair use, free speechI'd like to point people to some useful references for fair use, copyright, digital issues.
Free speech vs. Copyright:
Freedom Of Speech And Injunctions In Intellectual Property Cases (Mark A. Lemley, Eugene Volokh)
Fair Use in terms of First Amendment:
General Digital Copyright:
Selected Papers by Pamela Samuelson
These are good background to understand the concepts. Don't believe everything you read on Slashdot (though this sentence is one of the things you should believe
:-) ).Sig: What Happened To The Censorware Project (censorware.org)
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Q is nasdaq for Bankruptcy proceedings
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Q is nasdaq for Bankruptcy proceedings
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What's revolutionary here? (FSA claims!)
I don't think he even understands the real difference between an NFA and a DFA. You can convert any NFA to a minimal DFA and that's how it should be done. That is the fastest possible strategy, and... I'm surprised none of you karma whores have been able to shoot this one down.
Can't even find this basic fact on Google!!?!?!
Perl people... Soooo far from theory. -
Re:Who caused the Ice Age?I can only presume you're joking, and that you don't really believe in this facile logic. As humans breathe oxygen, would more oxygen in the atmosphere result in more humans?
actually, reasarchers at duke have suggested that exposing plants to an enviroment richer in co2 does indeed increase the rate at which they grow...
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Re:War
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Well, it's here already
At my university, IPv6 has been deployed since last year, maybe longer. I've been running FreeBSD w/ IPV6 for at least that long. Honestly, it hasn't made that big a difference for me
:) -
C-H == carbohydrate == life like us?
If you look at Mars' atmosphere, you see a 50x higher concentration of carbondioxide compared to earth.
Well... not exactly. The CO2 is about 50x more common in proportion, but remember that there is also 100x less pressure (7-10 millbars versus roughly 1000 millibars) so the total amount of CO2 around on Mars is about 1/2. Low atmospheric pressure complicates things even more by boiling off most of the volatiles which would generally be considered useful for quite a big stretch along the putative road to life.
After an initial flurry of excitement, the original Miller-Urey experiments which produced some amino acids also highlighted a number of problems on the way along said road.
- The experiment was highly artifical, not at all a good representation of putative early Earth conditions
- despite this, we would expect some amino acids to form anyway, due to the chemical potentials involved (there is a dip in the road to life, into which some chemical processes will roll with very little pursuasion)
- the dip in potential has another side, and that looks kind of like the roads you see in some cartoons, which lead up to the base of a cliff, then trundle straight on up the face of it; what this means in real terms is that not only do some simple atoms/molecules find it relatively easy to become amino acids, but also more complicated molecules find it much easier to relapse to aminoness and it's very unlikely that aminos will self-assemble into anything much more complicated
- the acids formed were racemised, that is, about half of them were twisted the wrong way; with one exception, amino acids in living beings are twisted left-handed (are said to have left-handed chirality)
- the putative primitive conditions also destroy even the simple amino acids formed by the experiment very quickly
- the early conditions involve a heck of a lot of chemicals unlikely to exist in useful amounts on Mars
- for that matter, there is much evidence that Earth did not have a reducing atmosphere like the one used in the experiment, or at least did not have one for very long.
I think it's more important that the presence of water enables us to create colonies on Mars in the near future
Agree. And let's do it properly, by building a Beanstalk now that it is technically feasible. Or is that the mistake the Babelians made? (-: - The experiment was highly artifical, not at all a good representation of putative early Earth conditions
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C-H == carbohydrate == life like us?
If you look at Mars' atmosphere, you see a 50x higher concentration of carbondioxide compared to earth.
Well... not exactly. The CO2 is about 50x more common in proportion, but remember that there is also 100x less pressure (7-10 millbars versus roughly 1000 millibars) so the total amount of CO2 around on Mars is about 1/2. Low atmospheric pressure complicates things even more by boiling off most of the volatiles which would generally be considered useful for quite a big stretch along the putative road to life.
After an initial flurry of excitement, the original Miller-Urey experiments which produced some amino acids also highlighted a number of problems on the way along said road.
- The experiment was highly artifical, not at all a good representation of putative early Earth conditions
- despite this, we would expect some amino acids to form anyway, due to the chemical potentials involved (there is a dip in the road to life, into which some chemical processes will roll with very little pursuasion)
- the dip in potential has another side, and that looks kind of like the roads you see in some cartoons, which lead up to the base of a cliff, then trundle straight on up the face of it; what this means in real terms is that not only do some simple atoms/molecules find it relatively easy to become amino acids, but also more complicated molecules find it much easier to relapse to aminoness and it's very unlikely that aminos will self-assemble into anything much more complicated
- the acids formed were racemised, that is, about half of them were twisted the wrong way; with one exception, amino acids in living beings are twisted left-handed (are said to have left-handed chirality)
- the putative primitive conditions also destroy even the simple amino acids formed by the experiment very quickly
- the early conditions involve a heck of a lot of chemicals unlikely to exist in useful amounts on Mars
- for that matter, there is much evidence that Earth did not have a reducing atmosphere like the one used in the experiment, or at least did not have one for very long.
I think it's more important that the presence of water enables us to create colonies on Mars in the near future
Agree. And let's do it properly, by building a Beanstalk now that it is technically feasible. Or is that the mistake the Babelians made? (-: - The experiment was highly artifical, not at all a good representation of putative early Earth conditions
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It'd be fun if it has negative gravityAlthough it's strongly expected that antimatter will respond to and generate gravity in the same way as normal matter, it's never been experimentally verified because no one's ever had enough antimatter, moving slowly enough, to measure the force of gravity on it. This sounds like it might be a big step towards performing this experiment.
If it did have negative gravitic mass, that would have all kinds of funky consequences. Maybe we could stabilize wormholes, and get faster-than-light travel and time travel. Fun to think about, anyway.
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sdrawkcaBI admit that it was a few years since I studied the theory of relativity, but I belive it is you who don't know your physics.
From this page, for example: The following chart shows the perceived travel time for the particle moving at 0.9999999999999999999999951c from different locations in the universe: Alpha Centauri 0.43 milliseconds
Galactic nucleus 3.2 seconds
Andromeda galaxy 3.5 minutes
Virgo cluster 1.15 hours
Quasar 3C273 3 days
Edge of universe 19 days
For a better understanding, consider the following. If you set out on a ship from earth moving at the velocity of the above proton, and travelled to the edge of the universe and back, you would perceive being gone for 38 days (19 days out and 19 in). However, when you arrive back on earth, 34 BILLION YEARS would have elapsed! The earth probably won't even be here by then. That time is twice as old as many speculate the universe is.The world is stranger than you think. Next week perhaps I'll tell you about quantum mechanics
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CmdrTaco Raids Young Tender Assholes in 27 Cities
Posted by chrisd on Tuesday December 11, @08:22PM
from the no-mention-of-peg-legs-and-eye-patches dept.
akiaki007 was among many who wrote in to say: "Check out this article on the New York Times(free reg, blah blah) site. The CmdrTaco have raided 27 cities in 21 states. Raid sites include MIT, UCLA , Purdue, Duke, UofO, all hot-beds of young tender assholes. Their main target was the group DrinkOrDie, an asshole appreciation club. 'This is a new frontier for crime,' Kenneth W. Dam, deputy secretary of the Treasury, said at a news briefing. 'The costs are enormous to both industry and consumers.' I better hide my asshole. They might think it's some weird fucking tool." -
CmdrTaco Raids Young Tender Assholes in 27 Cities
Posted by chrisd [dibona.com] on Tuesday December 11, @08:22PM
from the no-mention-of-peg-legs-and-eye-patches dept.
akiaki007 [mailto] was among many who wrote in to say: "Check out this article [nytimes.com] on the New York Times [nytimes.com] (free reg, blah blah) site. The CmdrTaco have raided 27 cities in 21 states. Raid sites include MIT [mit.edu], UCLA [ucla.edu], Purdue [purdue.edu], Duke [duke.edu], UofO, all hot-beds of young tender assholes. Their main target was the group DrinkOrDie [google.com], an asshole appreciation club. 'This is a new frontier for crime,' Kenneth W. Dam, deputy secretary of the Treasury, said at a news briefing. 'The costs are enormous to both industry and consumers.' I better hide my asshole. They might think it's some weird fucking tool." -
Re:Expensive schools..they are only cracking down on people at expensive schools
Potentially humorous, but factually incorrect.
Purdue's estimated cost for 1 year (for in state students) is $12,000. That's tuition + room + board + books + misc. fees.
UCLA costs about the same.
You could sent two students to either Purdue or UCLA for less than the cost for 1 student at Duke.
The University of Illinois is also more expensive. -
CmdrTaco Raids Young Tender Assholes in 27 Cities
Posted by chrisd
on Tuesday December 11, @08:22PM
from the no-mention-of-peg-legs-and-eye-patches dept.
akiaki007 was among many who wrote in
to say: "Check out this
article
on the New York Times (free reg, blah
blah) site. The CmdrTaco have raided 27 cities in 21 states. Raid sites include
MIT, UCLA,
Purdue, Duke,
UofO, all hot-beds of young tender assholes. Their main target was the group
DrinkOrDie, an asshole appreciation club. 'This is a new frontier for
crime,' Kenneth W. Dam, deputy secretary of the Treasury, said at a news
briefing. 'The costs are enormous to both industry and consumers.' I better hide
my asshole. They might think it's some weird fucking tool." -
CmdrTaco Raids Young Tender Assholes in 27 Cities
Posted by chrisd on Tuesday December 11, @08:22PM
from the no-mention-of-peg-legs-and-eye-patches dept.
akiaki007 was among many who wrote in to say: "Check out this article on the New York Times (free reg, blah blah) site. The CmdrTaco have raided 27 cities in 21 states. Raid sites include MIT, UCLA, Purdue, Duke, UofO, all hot-beds of young tender assholes. Their main target was the group DrinkOrDie, an asshole appreciation club. 'This is a new frontier for crime,' Kenneth W. Dam, deputy secretary of the Treasury, said at a news briefing. 'The costs are enormous to both industry and consumers.' I better hide my asshole. They might think it's some weird fucking tool." -
CmdrTaco Raids Young Tender Assholes in 27 Cities
Posted by chrisd on Tuesday December 11, @08:22PM
from the no-mention-of-peg-legs-and-eye-patches dept.
akiaki007 was among many who wrote in to say: "Check out this article on the New York Times (free reg, blah blah) site. The CmdrTaco have raided 27 cities in 21 states. Raid sites include MIT, UCLA, Purdue, Duke, UofO, all hot-beds of young tender assholes. Their main target was the group DrinkOrDie, an asshole appreciation club. 'This is a new frontier for crime,' Kenneth W. Dam, deputy secretary of the Treasury, said at a news briefing. 'The costs are enormous to both industry and consumers.' I better hide my asshole. They might think it's some weird fucking tool." -
the killer app for whom?The question of broadband's killer app must be embedded in a consideration of who will control the broadband marketplace. Consider Lawerence Lessig relating a Sony exec's experiences in trying to get video streaming deployed over IP on broadband networks. The exec said a cable operator told him "we will shut down broadband before we ever allow this technology on our lines". From a talk he gave at the Conference on the Public Domain, here's the realvideo of the panel he was on "From Anarchist Software to Peer2Peer Culture: the Public Domain in Bandwidth, Software and Content". The comment is about 10minutes in (watch the whole thing its amazing).
Apparently that cable operator thinks there is some advantage to controlling the content that flows over their lines. P2p networks, open access and a broadband internet don't seem to fit into their vision of broadband, seems likely that they'll build closed content broadband networks so that they get to define what the killer app is.
Consider:
- Asymetric bandwidth. Guess why bandwidth is asymetric, they don't want content competition from their customers.
- ATT, the nation's largest cable operator, at one point made noises about asking a percentage of the ecommerce that flowed over their pipes to the Internet.
- the "Cisco whitepaper". Cisco marketing equipment to cable internet operators to make competitors traffic slower. Analysis.
Oh, the cable operators' killer app is interactive television. Perfect marketing information that they can sell, shoving products in your face. Is that your killer app? - Asymetric bandwidth. Guess why bandwidth is asymetric, they don't want content competition from their customers.
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the killer app for whom?The question of broadband's killer app must be embedded in a consideration of who will control the broadband marketplace. Consider Lawerence Lessig relating a Sony exec's experiences in trying to get video streaming deployed over IP on broadband networks. The exec said a cable operator told him "we will shut down broadband before we ever allow this technology on our lines". From a talk he gave at the Conference on the Public Domain, here's the realvideo of the panel he was on "From Anarchist Software to Peer2Peer Culture: the Public Domain in Bandwidth, Software and Content". The comment is about 10minutes in (watch the whole thing its amazing).
Apparently that cable operator thinks there is some advantage to controlling the content that flows over their lines. P2p networks, open access and a broadband internet don't seem to fit into their vision of broadband, seems likely that they'll build closed content broadband networks so that they get to define what the killer app is.
Consider:
- Asymetric bandwidth. Guess why bandwidth is asymetric, they don't want content competition from their customers.
- ATT, the nation's largest cable operator, at one point made noises about asking a percentage of the ecommerce that flowed over their pipes to the Internet.
- the "Cisco whitepaper". Cisco marketing equipment to cable internet operators to make competitors traffic slower. Analysis.
Oh, the cable operators' killer app is interactive television. Perfect marketing information that they can sell, shoving products in your face. Is that your killer app? - Asymetric bandwidth. Guess why bandwidth is asymetric, they don't want content competition from their customers.
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The best way to protect the commons.
Read thing you have written, Ideas (I will admit I have not finished it yet, I just got it in the mail a few days ago) and this conference paper as well as Code to some extent, I get the idea that what you call for is not possible under the current political system. The distributors of the 20th century want to keep their hold on the right to distribute without competition from the common person and they will not support a politician that advocates a system that will challenge theirs. Generally it seems as if working within the current political system is not possible if we (the ones who will be benefited by the new "regime" as you call it in Ideas) want to protect the commons. In light of this, would you advocate starting a new political party with this as part of its platform? Or do you think that corporate money will always be in American politics and that the only way to protect the public domain will be for producers to mandate that their work goes into the public domain much like Open Source software does?
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Reward but not thru exclusive use.
Rewarding those who do good things is certainly something nobody will argue against, for it's how we teach our children.
But to be rewarded with the ability to then tell others they cannot make use of what good you have done is for others worse then you never having done it.
Do you see the inherent contridiction of giving exclusive use as a reward?
Change the IP laws from "cannot" based to "CAN" based and the forward moving force to advance will have a great deal less friction against it.
Who is to say that being rewarded with exclusive use that you will use such exclusive use to it fullest benefit to you and society? There is no magic intelligence that you somehow receive upon getting exclusive use granted you, that insure you will do the best thing.
However, to have "CAN" based laws such that anyone can use what good you have done, so long as they give you proper credit and reward. Perhaps based upon a relative percentage of the profits one makes in using your good. Or perhas this is a probelm area the public can better solve? see below!
This way, it's not up to just the do gooder to then figure out the best way to impliment the good, but rather up to any and everyone who wants to make use of it. Consider the following quote!
One of the papers from the Duke university Public domain conference didn't make it into the "download all papers" archive on that site: Coase's Penguin
"At the heart of the economic engine of the world's most advanced economies, and
in particular that of the United States, we are beginning to take notice of a hardy,
persistent, and quite amazing phenomenon--a new model of production has taken root,
one that should not be there, at least according to our most widely held beliefs
about economic behavior. It should not, the intuitions of the late 20th century
American would say, be the case that thousands of volunteers will come together
to collaborate on a complex economic project. It certainly should not be that these
volunteers will beat the largest and best financed business enterprises in the world
at their own game. And yet, this is precisely what is happening in the software
world." - Yochai Benkler
BTW, my home page is relative to this matter.
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More on the subject.
If you would like to read more on the subject of the book you can go here and look at some conference papers about the "public domain," one of them is even by Lawrence Lessig. I just bought his new book off of bn.com and I'm looking forward to reading it. Unlike the reviewer, I for one am looking forward to this book more than Code. I am thinking it will be more accessable to non computer people like myself.
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Re:Imagine the monsters that will come next
It's a known fact that cloned DNA is often (but not always) weaker and ages faster. This may not be the case with human DNA however.
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Re:Open source has little to do with public domain
It's probably fair to say that there is little legal overlap between OSS / FS licenses and public domain as it is defined by Mirriam Webster.
I do think that Paula Samuelson's article gives a much more complete and interesting examination of the concept of public domain than is possible from a dictionary definition, though.
But if you want to focus only on the dictionary definition of "public domain"... (and who could fault you for such an academic insistence on precision ?)... then I think you're right. -
Re:Open source has little to do with public domain
I have read the papers - I couldn't find Eben Moglens paper but I've just read Yochai Benklers.
I assure you that Eben Moglen would not have spoken if Free Software were considered irrelevant by the people who organized the conference.
I'm not saying that Open Source of Free Software isn't considered relevant by the prganizers. I'm saying it shouldn't be, because the overwhelming majority of Free SOftware and Open Source is not public domain, including most of the examples Yochai mentions in his paper.
Asides from the fact its factually incorrect, promoting things which aren't public domain as being public domain contributes the the existing misunderstandings people have about Open Source and Free Software and encourages people to ignore the responsibilities required in exchange for use of OSS / FSF applications.
Mike -
I work with Utah
A group here at Duke has just started to collaborate with the Emulab people on a similar area of research. We're pretty excited, since we think our group has a lot to share with the Utah group. It's just kind of weird to load Slashdot and find your collaborators on the front page. Here I was thinking I'd take a break from research and read Slashdot, but noooooo
.....And to respond to another poster, maybe if Emulab had Muse-like resource management of their web server, they could handle the web load.
:) It would be nice if someone could work on merging the two, getting the two to leverage the best parts of both, work on .... uh, maybe I should get back to work before my advisor sees me posting on Slashdot. :)-jdm
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consider me piqued... thanks
Well worth downloading
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Optimizing driversIt seems that this is not necessarily optimizing for Quake3 at the expense of other software. When making design decisions, in some cases one option is simply better than others. e.g. Choosing a radix sort over a bubble sort is basically all benefit and no cost. However, other decisions will improve performance for some tasks while reducing it for others. Think about Amdahl's Law for instance. Or consider adding an index to a field in a database system improves the performance of queries but reduces the performance of inserts and updates. In optimizing a system, your goal is to maximize it's performance in actual use. That means that the more you know about the expected use, the better design decisions you can make. If your database is being used to log transactions, and inserts will outnumber queries, you don't put the index on. If it's being used for census data, and will be updated seldom or never, but querried frequently, you do. That is to say, you use what you know about which operations will be requested the most often, and favor those at the expense of less-frequently used operations. The problems is that you often don't know which operations will be used most frequently at design time. If, however, some of these decisions can be made at run time, you may have more information available, and will be able to make better decisions.
Which gets us back to the issue at hand. I don't know anything about the inner workings of the Radeon driver, but there are probably a number of similar tradeoffs involved in its design. The most reasonable interpretation is *not* that Radeon has optimized for Quake 3 at the expense of other programs. If that were true, it would run at the same rate whatever it were named. The better explanation is that when the driver knows what program is being run (such as Quake 3) it optmizes itself to the known characteristics of that program, and when a program which the driver knows nothing about (such as "Quack") is run, it uses default settings.
Thus, it's not necessarily favoring Quake 3 over other applications, but is instead using optimizations for for known programs which are not available for unknown ones. There's nothing in this article to indicate that similar optimizations haven't been made for Counter Strike, Half Life, or any other popular 3D programs.
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Re:Irritating screenshot
Why don't you look at this before you start making stuff up:
A bust of Nefertiti
Now does that person look black to you? -
Sonic BenefitDoubtful. The multi-bladder concept using water-filled pockets would aid in deadening the hollow acoustics that an all-air system would promote, but methinks it would have to be constructed as a shell around the actual chamber, to replace the wood/polycarbonate shell that conventional enclosures employ. It might even need to be stiffened to avoid doing something like Dizzie Gillepie's cheeks on each pulsation!
The sound waves have to "bounce" off something more substantial than air and thin vinyl. They then have to "escape" out to achieve a balance of the back versus the front of the driver. (see folded horn illustration). In a ported (bass reflex) enclosure there is a tuned hole that attains this balance. Then there is the sealed enclosure (not a great example) that relies on the balance to be a factor of amplifier wattage, speaker capability, and enclosure size to gain the most "bang for the buck".
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Re:SuggestionFirst off, the other nations of the world with a higher standard of living than the US also resent the nation. That can hardly be attributed to envy of the US's prosperity. The rest of the world resents that the US acts as if the world revolves around it and everything else is secondary.
As for the environement. It's all just a bunch of scare tactics, right? Well, if you listen to ultra right-wing groups such as capitalismmagaize.com and aynrand.org, perhaps, since it's in their own best interest to promote their ideology which says you shouldn't inconvenience yourself for the benefit of anyone else. Similarly, a story about the severity of global warming from a group like Earth First! wouldn't carry much weight, either, even though they can quote plenty of studies themselves.
So is it just a bunch of scare tactics? We have hard data showing that people definitely have a significant impact on the local climate -- think urban heat islands. Is it possible that in doing so, the local climate can have such a huge effect without impacting the larger world? Not really. There aren't ecosystems that large that exist in complete isolation.
Many people have claimed that carbon sinks, largely in the form of forests, would be more than enough to counter the effect of increase carbon dioxide emissions. The Kyoto Protocol placed significant emphasis on forests for that purpose. Unfortunately for that view, researchers at Duke released the results of a study showing that while the growth rate of plants showed significant initial increases, it slowed dramatically within a couple years (see the last couple paragraphs). What's the implication? That we'd need to constantly be planting forests. And of course since they'd absorbed the carbon we couldn't cut them down since that'd end up releasing the carbon back to the atmosphere. Actually, it isn't known how much of the carbon the trees actuall keep as opposed to storing in short-lived organs like leaves which fall off, decay, and release the carbon back into the environment (see the infor about this ongoing Harvard study). And if you want to know more about the group that did the research for Duke and is conducting related studies, their homepage is here.
Finally, as for the idea that "our president has stood up for his belief that environmentalism, when carried to the extreme, is very unhealthy for everybody"... Well, if you cut through the political commentary in this column you find out that Bush's own ranch has gone to great lengths to be environmentally sensitive. So much for his politics reflecting his actual beliefs.
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Re:SuggestionFirst off, the other nations of the world with a higher standard of living than the US also resent the nation. That can hardly be attributed to envy of the US's prosperity. The rest of the world resents that the US acts as if the world revolves around it and everything else is secondary.
As for the environement. It's all just a bunch of scare tactics, right? Well, if you listen to ultra right-wing groups such as capitalismmagaize.com and aynrand.org, perhaps, since it's in their own best interest to promote their ideology which says you shouldn't inconvenience yourself for the benefit of anyone else. Similarly, a story about the severity of global warming from a group like Earth First! wouldn't carry much weight, either, even though they can quote plenty of studies themselves.
So is it just a bunch of scare tactics? We have hard data showing that people definitely have a significant impact on the local climate -- think urban heat islands. Is it possible that in doing so, the local climate can have such a huge effect without impacting the larger world? Not really. There aren't ecosystems that large that exist in complete isolation.
Many people have claimed that carbon sinks, largely in the form of forests, would be more than enough to counter the effect of increase carbon dioxide emissions. The Kyoto Protocol placed significant emphasis on forests for that purpose. Unfortunately for that view, researchers at Duke released the results of a study showing that while the growth rate of plants showed significant initial increases, it slowed dramatically within a couple years (see the last couple paragraphs). What's the implication? That we'd need to constantly be planting forests. And of course since they'd absorbed the carbon we couldn't cut them down since that'd end up releasing the carbon back to the atmosphere. Actually, it isn't known how much of the carbon the trees actuall keep as opposed to storing in short-lived organs like leaves which fall off, decay, and release the carbon back into the environment (see the infor about this ongoing Harvard study). And if you want to know more about the group that did the research for Duke and is conducting related studies, their homepage is here.
Finally, as for the idea that "our president has stood up for his belief that environmentalism, when carried to the extreme, is very unhealthy for everybody"... Well, if you cut through the political commentary in this column you find out that Bush's own ranch has gone to great lengths to be environmentally sensitive. So much for his politics reflecting his actual beliefs.
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Legal Background on ICANN's Legitimacy
For two legal views on ICANN's Legitimacy, see Jonathan Weinberg, ICANN and the Problem of Legitimacy (.pdf), and my (long) article, Wrong Turn in Cyberspace: Using ICANN to Route Around the APA and the Constitution , available in HTML or
.pdf formats. -
Re:you are lazy
okay, your reading off the same script.
i have nothing left to say to your points except for the link that you sent me gave me a nice selection of hotjobs.com, monster, and the ilk. i can see you don't even research your links before you post them. Given that, here's some information.
US Bureau of Labor Statistics
The Cornell School of Industrial and Labor Relations Library homepage
National Statistical Coordinization Board - Yearbook of Labor Statistics page (needs to be ordered)
Duke University Library's Indexes and Databases for Researching Labor Unions and Labor History
Biased links:
AFL-CIO homepage
Union Resource Network -
A better link from Duke
Here is a better link with more info about the project from Duke...
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Re:Yawn...I don't think we do know whether or not this affects matter. It might change the properties of matter that contains left-handed nuclei.
What if a left-handed version of H20 was created that acted like the ice-nine in Kurt Vonnegut's Cat's Cradle . Ice-nine in the novel was supposed to "freeze" regular water on contact regardless of the temperature.
You'd think that the oblong nucleus of left-handed nuclei would cause the orbits of any electrons to go out of kilter?
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TCP record performance still for FreeBSD AFAIK
AFAIK a team of researcher working on FreeBSD still have the record for TCP performance, using FreeBSD/Alpha on a Myrinet network.
See..
- Duke Computer Scientists Exceed "Gigabit" Data Processing Speeds With Internet Software
- DUKE COMPUTER SCIENTISTS EXCEED 'GIGABIT' DATA FLOW SPEEDS WITH INTERNET SOFTWARE
The performance reached was 1.147 billion bps on a single TCP connection... Way over what Gigabit Ethernet or ATM are even physically able to do. Those boards are really fast...
Anyone know about more recent results ?
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the reasons why they're not using pseudocode
It has been suggested that a language-independent examination might encourage a focus on ideas rather than language details. This approach has merit, but...
This essay discusses why a language-independent AP exam, and an exam using multiple languages, were both rejected.
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Re:Hmm....Heh... I remember when I took the test it was given in Pascal. That was my High-school language. C++ became the standard for my college years, and now in the workplace I use Java exclusively, and while it's made me lazy, I couldn't be happier.
I think that the decision to switch to Java testing was a good one on the part of the College Board, but will miss it's mark by the time it's put into full effect.
From taking a look at the language subset that they plan on testing (here) I can see that they are focusing as little as possible on Java's little quirks and try to cover as much broad concepts of OO as possible.
In this respect I think that Java is a pretty good tool for the job. C++ has too much language overhead that you have to be familiar with in order to be able to use it.
As far as arguments of a language-neutral test go, I would like to see anyone clearly abstract away an inheritance tree in a way that is can be objectively evaluated. The last thing you want on a test is a prick grader deciding to misinterpret your pseudo-code. And with something as fuzzy as OO in question, I think any kind of pseudo coding will be wide-open to interpretation.
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Link for full specsThe page with the full specs is here.
to help clarify:
In this section, we discuss the Java subset that students will be expected to master to take the AP CS exam. We also mention a number of features that are potentially relevant in a CS1/2 course but that the AP CS exam does not cover.
etc.. . .
Keep in mind that this subset is intended for the AP CS exam. The purpose of the subset is to enable the designers of the AP CS exam to formulate questions relating to the AP CS syllabus. The AP CS subset is not intended as a prescription for a computer science course. We expect courses to cover language features that go well beyond this subset. For example, many instructors will choose to cover applets, graphics or user interfaces. However, none of these topics are tested on the AP CS exam.
To help students with test preparation, the AP CS subset is purposefully kept small.
We omitted language constructs and library features that did not add significant functionality and that can, for the formulation of exam questions, easily be expressed by other mechanisms in the subset.
For example, inner classes or the StringBuffer class are not essential for the formulation of exam questions -- the exam uses mundane alternatives that can be easily understood by students. Of course, these constructs add significant value for programming.
Omission of a feature from the AP CS subset does not imply any judgment that the feature is inferior or not worthwhile.
worth looking at just to see what they'll be looking for
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More about the author.Mr. Granade has actually written a few games of his own.
Sourcecode, and general info can be found
on his personal page, located right here.Penguins love to play games. The Linux Pimp
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maybe we should be banning school instead..
pointing out that it is the culture, not guns, that encourages Columbine-like behavior. There can be no doubt that the Columbine killers were affected by the culture, and accessed that through the internet.
"the culture"??
yes, but which culture?
the "culture" of a computer game?
the "culture" of a web page?
i don't think so.
try these:
the culture of consumerism
the culture of apathetic convenience
the culture that places the activities, opinions, and appearances of media-fabricated celebrities at a higher level of importance than the world or the community
the culture of the kill-or-be-killed teen years
If my memory of grade school serves me well (hint: it does), then nothing has a larger impact than the very culture of childhood.
nothing is more disturbing than the culture of public school, which is an evolutionary concentration camp where one unpopular statement, one mismatched item of clothing, one act of resistance against the conformist rules brands you as insignificant, a loser, a waste, nothing.
there can be no doubt that the influence of some web page i surfed through a couple of times pales in comparison to the tens of thousands of hours spent being run through the Status Quo Transmogrifier that is the education system.
russ suggests a little farther down that if these kids were inherently disturbed, then "isn't more restriction and licensing for weapons the _only_ way to limit their killing?"
i'm not so sure.
my question is: Wouldn't it be best to stop wasting our time complaining about some game/movie and spend more time giving kids something they can hold onto other than the hypermutable treachery of adolescent identity? If some kids are inherently disturbed, how is throwing them into a depersonalizing system with 2000 of their equally selfish, anxious, and uncertain peers going to help them overcome their nature?
I guess we could cut off their opposable thumbs to deter them from ever using a physical object as a weapon, but perhaps it would be more effective to work to counteract the culture that says "you are your job", "you are your possessions", "you cannot attain substance unless you make this much money, drive this car, wear these clothes, weigh this much, spray this perfume, have clear skin, have straight white teeth..."
these types of images are the source of the worst damage to a developing person.
personally, i find FPS games more boring than shocking. ["oh look, i just made a bunch of green and beige pixels turn black and red and then randomly disperse themselves in clumps toward the bottom of my screen. yay"]. what shocks me is that there are millions of americans who truly believe that if only we can keep those other evil people from electing {Gore,Bush} then we can begin to build a bridge to the 21st century, whatever the hell that means.
the problem with teens is they're looking for certainties -
Re:protein folding is VERY hard to predict
protein sequence is linear; while local structural details may be predictable with some reliability, ultimately it is the final 3D fold with long range interactions that form the final structure. You can imagine that the longer the protein, the harder it is to fold, due to the increased number of potential tertiary interactions.
It definitely is a hard problem, but it's the next logical thing to attack now that the human genome is more or less sequenced. The use of seti@home-style distributed computing seems like a good idea, except for those long range electrostatic and van der Waals interactions you mention. For a distributed system that relies on a central server, those are the killer. They represent an enormous amount of global communication on each time step of the simulation, and therefore a big bottleneck if they all have to pass thru the central server. This is a strong argument in favor of allowing client-to-client communication. That would allow the thing to scale much better.There is hope in some algorithms (such as DPMTA) which intelligently partition large groups of particles to simplify the computation of long-range forces:
Hopefully the folding@home folks are aware of such algorithms, and are using them to reduce the need for inter-client communication. By farming out as much of that computation as possible to the clients, they minimize the reliance on their non-scalable server CPU, and they also effectively slow down the clients a little, postponing the day when they find themselves hopelessly bandwidth-bound. ...the classical N-Body problem involves computing the net effect of the interactions of each pair of particles out of a set of N... the amount of computation grows as the square of the number of particles, for the naive implementation... The FMA process, however, uses a Multipole Expansion (MPE) to represent the effects of a group of particles as a single entity. By using the MPE when computing forces on a particle, and doing operations to combine multipole expansions, the overall amount of computation can be reduced to an almost linear relationship with the number of particles. -
Duke joins the list of schools allowing NapsterDuke University has also rejected the request to ban Napster. An article with a few juicy quotes can be found: here.
"We did not want to ban Napster because there are a number of quite legitimate uses of the software in moving bodies of data around, and this is an area where such programs will become increasingly familiar," Keohane wrote in an e-mail. "We need to deal with the root of the problem in copyright protection and find good payments systems rather than ban something that facilitates legitimate communication."
In addition, the admnistration sent students this letter via e-mail:
Duke has declined a request from the attorney representing several music performers to ban access to napster.
I do wish to remind all students that your license to use Duke's computing networks is predicated on legal use only, and that copyright infringement is not a permitted use.
-The AC formerly known as Cheebus -
Re:unpossibleThat is unpossible!
Actually, from the actual show, the quote should contain a contraction: "That's unpossible!".
Me fail english? That's unpossible!
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MP3/ Napster / etc. "paper" I wrote...This might be a bit OT, but I just thought ppl might be interested in this paper I wrote about these issues (www.duke.edu/~mag10/mp3.html) awhile back for a school / symposium presentation I was doing.... Its a bit out of date now since it was written in late April / early May, but I'm still very curious about input from others on it...
:-)I just talked about the way the industry was changing and possible ways these changes could benefit the artist as well as the consumer (and of course the fact that the industry is being ridiculous by trying to _prevent_ it from happenning!)
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Two things
1) AI class I took last year (well, TA'd) we went in to some detail on possible RPS strategies. Yes, you can have strategies, at least assuming that your opponent is not a pure RNG (in which case the only correct strategy is to be RNG yourself.)
2) Nothing that the tourney produces will be as cool as this. Unfortunately, the picture stinks, but on the left is my professor, and on the right is the kid (he'll hate me for that) who build the RPS-playing Lego Mindstorm. And that's the RPS bot in the kid's hand. It used some pattern learning software (written in legOS) to attempt to detect patterns in human RPS players. Didn't work great, but what the heck... it was still damn cool. Had fingers and the whole bit.
~luge