Domain: utah.edu
Stories and comments across the archive that link to utah.edu.
Comments · 688
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Hey now....
From the article: Spend Saturday soaking up the totally awesome graphics on the Stealth bomber flight simulators, and then obliterate most of Utah, sco.com name servers and all, on Sunday morning hours before the DDoS is due to hit Slashdot. SCO Execs still laughing themselves helpless about the
/. Effect when the bomb hits.
Hey now, not everybody in Utah is a SCO exec or a polygamyist. I suppose this is the toll that association takes however, even if that association is geographic as opposed to ideological, political or religious. Believe it or not, there are good things to come out of Utah, such as much of the technology responsible for computer graphics, some kickin' genetics research, some of the best skiing in the world, good beer, and last but not least, is the home of computational molecular phenotyping. :-)
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Hey now....
From the article: Spend Saturday soaking up the totally awesome graphics on the Stealth bomber flight simulators, and then obliterate most of Utah, sco.com name servers and all, on Sunday morning hours before the DDoS is due to hit Slashdot. SCO Execs still laughing themselves helpless about the
/. Effect when the bomb hits.
Hey now, not everybody in Utah is a SCO exec or a polygamyist. I suppose this is the toll that association takes however, even if that association is geographic as opposed to ideological, political or religious. Believe it or not, there are good things to come out of Utah, such as much of the technology responsible for computer graphics, some kickin' genetics research, some of the best skiing in the world, good beer, and last but not least, is the home of computational molecular phenotyping. :-)
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Hey now....
From the article: Spend Saturday soaking up the totally awesome graphics on the Stealth bomber flight simulators, and then obliterate most of Utah, sco.com name servers and all, on Sunday morning hours before the DDoS is due to hit Slashdot. SCO Execs still laughing themselves helpless about the
/. Effect when the bomb hits.
Hey now, not everybody in Utah is a SCO exec or a polygamyist. I suppose this is the toll that association takes however, even if that association is geographic as opposed to ideological, political or religious. Believe it or not, there are good things to come out of Utah, such as much of the technology responsible for computer graphics, some kickin' genetics research, some of the best skiing in the world, good beer, and last but not least, is the home of computational molecular phenotyping. :-)
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Look into . . .
clincal informatics or biomedical informatics. Both of these fields are in dire need of people with a combination of medical and cs backgrounds. My suggestions would be to look at Vanderbilt's biomedical informatics program . You would only need a few pre-reqs and it leads to a M.S. or Ph.D in the field. Further, they have a program that is specifically tailored for a M.D. getting into the field. Stanford, Utah, and Columbia round out the top schools in this field. Further, there is no shortage of jobs as it is still in its infancy!
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Market interfaces....
Find a dedicated concept or conceptual area to exploit. How to do this? Simply ask folks what areas they are having problems with software needs.
I'll tell you that a number of folks are doing quite well at the interface between biotech and software. The amount of data that is being generated by biotech is truly mind boggling and we need software tools for analysis and visualization of that data. Software that is capable of analyzing multi-dimensional datasets is particularly in demand right now with gene chip analysis and the work we do in our lab on molecular phenotyping. For instance, we are adopting software used in the remote sensing community to analyze "multispectral" data sets in the retina and other tissues and the communities that this software came from (GIS, Remote sensing, Intelligence) are very interested in software that can help distill multispectral data real time to enable streamlined processing and analysis. Your link to DARPA is particularly informative for these potential projects, but don't forget about other resources as well like the National Institutes of Health.
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And???
Cole declared the ruling "a victory for everyone who believes the war on terrorism ought to be fought consistent with constitutional principles."
It's great that this is the first blow towards stamping out parts of the Patriot Act, but it's not winning the whole war.
I hope that Maher Arar sues the pants off of the US Government. To quote the article:
The Syrians locked Arar in an underground cell the size of a grave: 3 feet wide, 6 feet long, 7 feet high. Then they questioned him, under torture, repeatedly, for 10 months.
I hope that this man gets compensation for what he had to endure. I'm crossing my fingers that in the process of him doing so that most of these police-state laws that have gone into effect go the way of the dinosaur.
This isn't 1943, and this isn't 1984. The law should reflect that.
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Re:Here are the IPs in question
I did a reverse dns lookup on the list.. It's kinda funny that University of Utah Printing Services and UC Berkeley Printing Services both come up on the list..
Take a look at the full list (note: these are only the ones that returned something) -
Re:Mars Image
My childhood suspicions are confirmed;.. Mars is one friggin' big toffee pie!
see for yourself... this is Mars, and this is what it's made of
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Image mirror
The ESA site appears to be getting quite slow. A mirror of the large image of Valles Marineris is here.
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Re:it's about time some one did this
I'm glad you're actually posting evidence now.
It seems from the link you provided that people tested using cell phones were able to keep their cars inside the lane just fine.
Now, keeping your car inside the lane is just one aspect of driving. Other studies show that using a phone markedly impairs reaction times to traffic signals and brake lights.
Even if phone use is not significantly impairing, you can't conclude that computer use is also non-impairing. Phone use mostly involves your auditory and language facilities, which are not used much in driving. Computer use requires your vision to look at the screen, and vision is essental to driving. There is mountains of evidence (like this and this) showing that while people can multitask easily between tasks using different sensory modalities, they cannot multitask efficiently between two tasks requiring the same sensory modality. -
Re:How was the statuette produced?
Pure speculation on my part, but it looks like the easiest way would be to output a
.stl file (or whatever the compatible 3d file format would be) for a rapid prototyping machine. The machine would then build up a physical model that would then be the master for a mold so you could make billions of monkeys! -
Report
Some classmates and I in the PMST program at the University of Utah just completed a Business Fundementals course. As part of the course, we completed a semester long project that analyzed The SCO Group. We came to same conclusions that many analysts did, that if SCO wins this case, it will be huge for them. But no one can come close to saying for sure that they are going to win. Download the report here.
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Report
Some classmates and I in the PMST program at the University of Utah just completed a Business Fundementals course. As part of the course, we completed a semester long project that analyzed The SCO Group. We came to same conclusions that many analysts did, that if SCO wins this case, it will be huge for them. But no one can come close to saying for sure that they are going to win. Download the report here.
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Re:640K--not true
sub factors($prime){
return ($prime, 1);
}
1 isn't a prime.
:-) -
Re:The Red Cross
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6310i + Pocket PC
I used to use an Ipaq 3630, but now I'm using a Dell Axmin X5. Bluetooth to the pocket pc, dialling in to a 33,6 RAS service (Orange is the mobile company provider). It's not the quickest thing in the world, but it's the most accessible. If I'm in the centre of town, I don't want to carry a laptop around with me. Even round at a friends house, setting up a VPN setting on his PC on his ADSL (where his router doesn't support VPN passthrough for example) is too much trouble.
MochaSoft Telnet is a decent SSH client for Pocket PC.
you can get a VNC Viewer for Pocket PC here
and a Terminal Services client for PocketPC can be downloaded here
I guess it depends on what you are after. Many of the suggestions here mention laptops and that's OK if you are just generally working remotely. But (even the skinniest one's) are bulky to carry around and require an additional bag to be lugging around. If you just need to ensure that you are able to to remote support in disaster situations whilst on the move, then the Pocket PC w/ bluetooth to a Nokia 6310i is a solution which I have used successfully. (I'm UK based if that makes any difference) -
Re:Ecology in the third world
Look around LA, you not see much of coal plants do you? Do you see any electrical plants or any smoke stacks at all?
... Energy is produced elsewhere, like hundreds if not thousand of miles away.So you are saying the US gets all it's power from asia? Funny, I don't recall hearing about power lines stretched across the Pacific, not to mention the implasability of anyone constructing such a system. Or are you saying places like Nevada and Utah are third world "countries"??? They are hardly dens of polluted filth--unless you are counting the Taliban-like citizens of Utah.
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Re:Replacement retinas
Not really, I suspect pretty decent retinal prosthetics will be available within 5 years.
Whoa dude. You are talking to the wrong person if you maintain that. Read my dissertation to find out why.
Like the cochlear implants, they will be horribly imperfect at first, but will dramatically improve the lives of their users. If you cannot see at all, even a few pixels makes like a lot better.
This is true. In fact, if one could maintain even a small "grid" of say, 128 pixels, that would be tremendous.
For the retina the challenges are
1) minimal heat production. The eye doesn't cool really well, and stimulating electrodes are gonna generate heat
This is true, but the other big problem (aside from those I outline in my dissertation) is going to be exact stimulation of appropriate neural circuits (even if they are not corrupt, which they are). What I mean by this is that you are going to have to stimulate ganglion cells. But there is no way that stimulating ganglion cells is going to not also stimulate other cells in the network. This is complicated by the fact that ganglion cells are coupled by gap junctions to amacrine cells.
2) hermetically sealed. The eye will be cut open, the implant inserted, and the eye will be sewn shut, and the outside of the eye will heal. Then, you have to remotely power the implant, while generating minimal heat, and convert visual input to stimulation of retinal neurons.
Again, read the dissertation. There are going to be problems with breaching of glial seals within the retina itself.
But even these issues are completely tractable with current technology
Perhaps.
And, there is a ton of money being thrown at it, with 4-5 centers nationwide working on it, and a company called 2ndSight.
This is very true. Don't forget Optobionics and others. But again, the problem is that everyone is missing some very fundamental issues with retinal degenerations. The retina degenerates, and remodels itself. Current approaches to vision rescue will have to be refined.
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Re:hackers, indeed
Well, I tried it. The results were very Tetris-like. Anyone know what I did wrong?
Command: cat hacker_logo.pic | pic2graph | cat > hacker_logo.png
I'll probably leave it as-is, as a tribute to my complete poserhood. -
FrisbeeCheck out Frisbee for fast disk imaging.
From the abstract:
Both researchers and operators of production systems are frequently faced with the need to manipulate entire disk images. Convenient and fast tools for saving, transferring, and installing entire disk images make disaster recovery, operating system installation, and many other tasks significantly easier. In a research environment, making such tools available to users greatly encourages experimentation.
We present Frisbee, a system for saving, transferring, and installing entire disk images, whose goals are speed and scalability in a LAN environment. Among the techniques Frisbee uses are an appropriately-adapted method of filesystem-aware compression, a custom applicationlevel reliable multicast protocol, and flexible applicationlevel framing. This design results in a system which can rapidly and reliably distribute a disk image to many clients simultaneously. For example, Frisbee can write a total of 50 gigabytes of data to 80 disks in 34 seconds on commodity PC hardware. We describe Frisbees design and implementation, review important design decisions, and evaluate its performance.
http://www.cs.utah.edu/flux/papers/frisbee-useni x0 3-base.html -
Re:Just a note...
Nope, iTunes was basically a revamped version of Casady & Greene's Sound Jam MP3 player. Apple acquired the SoundJam code to create iTunes, and Jeff Robbin, who created SoundJam, works (or worked) for Apple.
Check here for a little more info.
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Re:What's wrong with XP?
Excellent points. I was a solitary creature as well when I was younger, and never would have tried pair programming. Oddly, I seem to have grown a few social neurons and find it to work pretty well most of the time. I now pair program most of the time when I'm working.
1. I'm antisocial. I definitely do NOT want to hang around with some other programmer day in, day out.
Oh, for sure. Some people can do this, and some can't (and some that can't, change) That's just people, and it's no problem. Methods should always adapt to people, not people to methods.
2. Pair programming basically means that one person is actually coding while the other harasses him, making him explain every little thing he's doing.
In my experience, it doesn't take long before the watcher knows what's going on. There are usually periods of silence, a minute here, two there, when stuff is happening and both are happy with how it is going (so no reason to say anything).
One of the things we've found is that if the driver has to explain everything to the back-seater, either the wrong person is driving (it's easier to teach someone something when they have to understand you before fingers move on the keys), or the pair is badly mismatched. Not every expert has the patience to teach, and pairing such an expert with a novice can be very frustrating for both.
Besides, if your pair is harassing you too much, you should give him the keyboard and let it be his turn.
3. While I'm on the subject, I need peace and quiet to think.
I do too. I like going for a walk outside while I think. XP doesn't make people stop being people; we just have to take care to make the work situation fit the people.
One of the little suprises for me has been that some of the occasions where I need deep thought are taken care of when my partner sees an easy solution. I think it's a very tiny version of many minds making any problem shallow (or however that goes). Deep thought is still needed, of course, so we invent rituals to make sure we still get it when we need it. Fortunately, your partner is a detachable pod.
Why is only one person coding at a time, and why doesn't anyone think the second person is mostly being wasted?
Really, two people are coding. Just one is typing. My partner catches bug, sees things, and remembers things I forgot.
Laurie Williams's study at NCSU divided her classes into a control group (individuals) and a pair group. Strangely, programmer hours do not double when pair programming. Instead, a pair that has learned to work together seems to take about 2/3 of the time to do the work that a single programmer did. That still seems inefficient until you look at bug counts, which are much lower with pairs. Her paired students were submitting working code more often than the individual students.
Look for the chart of tests passed on page 6, and the graph of time spent on page 7. You'll see that it took a few projects for the pairs to come together. Learning to work together isn't instantaneous, so any organizing trying pair programming should be prepared for decreased productivity for a while (fortunately, the bug count starts to decrease a little right away, so you get *something* for your pain while you're waiting for the team to learn how to pair effectively).
It seems to work that way in the commercial projects I've done, too. But it's not for every project, and not for every programmer (and neither is RUP, or patterns, or OOP, or functional programming, or any other buzzword).
Wayne Conrad -
Re:Weather Sensor Array
This is already being done, at the moment not all states participating have made the data accessible. Here are a few that have.
Oklahome Mesonet
West Texas Mesonet
MesoWest
Note: The Texas Mesonets are particularly interesting during landfall of tropical cyclones! -
Re:Riddle me this...
... and that's not CO2?
:)
There's also quite a lot of research suggesting our current understanding on how oil is created might be wrong. It's not all that sure it's plants from hundreds of millions years ago that we're burning. Some sort of link -
Re:What about OS X?
Actually, Apple called their next-gen OS Copland (to be followed by Gershwin). After buying out NeXT, they started Rhapsody, which was based on NeXT's OpenStep OS. There was no Rhapsody until NeXT; it had everything to do with NeXT.
A quick Google search turns up this (plus many more) if you would like to do your own little history reading. -
Not the University research, but independant.The headline is misleading, saying they were "of the University of Utah". It was originally independant research being done on the Campus, not work for the University. Only after the announcement did the University adopt it in exchange for further resources.
Stanly Pons and Martin Fleischmann were both separately employeed by the University, but the research was not sponsored by the school. They were using some of the school's facilities with permission, basically because of the high cost of the equipment.
See http://www.chem.utah.edu/depthistory/ChemDept_His
t ory.pdf for some of this:"Stan Pons did his doctoral dissertation research at Southampton University, where he developed a scientific collaboration with Professor Martin Fleischmann. In the 1980's Martin was a frequent visitor to Utah and had been given a courtesy visiting professorship at the University of Utah. On March 23, 1989, a press conference was convened at the University of Utah
Because the original press conference was conveniend at the University, and because both professors were affiliated with the U of U, and that further research was taken up by the University at the time of the press conference, many journalists jumped to the conclusion that it was the University's project. ... to announce the discovery by Stan and Martin of cold fusion. The euphoria and disillusionment that followed that event have been told in many subsequent newspaper articles and books. A recent 365 page book [Charles G. Beaudette, Excess Heat: Why Cold Fusion Research Prevailed, Oak Grove Press, South Bristol, Maine, 2000] does a balanced job of recounting the story." (emphasis added)Other than the
/. error, the article iteself is rather interesting, including this answer from a professor: "The question I get more than any other is, 'Are you still doing this?', " says Prof. Jones. "The answer is yes, and what we are seeing is very difficult to explain outside of cold fusion. The repeatability of these experiments now approaches 80 percent." [Insert comparison to Microsoft here.]frob
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/. what's going on?
I dont know what is happening here at Slashdot, but I seriously hope taco, michael, and the others get off the SCO bandwagon... Why the hell do they only seem to accept mainly SCO, LINUX, and Anti Microsoft articles is becoming so yesterday, and I hope they (and I know some of you are reading this) start accepting things outside of the typical media whore range of articles that have appeared here for the past few months.- 2003-08-11 NSA's Statement on Cybersecurity (articles,security) (rejected)
- 2003-08-19 DNA based game playing computer (science,science) (rejected)
- 2003-09-06 Brown Dwarfs fingerprinted (radio,science) (rejected)
- 2003-09-06 Study Indicates Possible Surface Water on Mars (science,science) (rejected)
- 2003-09-07 GSM cellular phone encryption cracked (articles,security) (rejected)
It has been 14 years since two little-known electrochemists announced what sounded like the biggest physics breakthrough since Enrico Fermi produced a nuclear chain reaction on a squash court in Chicago. Using a tabletop setup, Stanley Pons and Martin Fleischmann, of the University of Utah, said they had induced deuterium nuclei to fuse inside metal electrodes, producing measurable quantities of heat. That was the opening bell for one of the craziest periods in science. Cold fusion, if real, promised to solve the world's energy problems forever. Scientists around the world dropped what they were doing to try to replicate the astounding claim. Full story
Astronomers using NASA's Hubble Space Telescope have discovered three of the faintest and smallest objects ever detected beyond Neptune. Each lump of ice and rock is roughly the size of Philadelphia and orbits just beyond Neptune and Pluto, where they may have rested since the formation of the solar system 4.5 billion years ago. The objects reside in a ring-shaped region called the Kuiper Belt, which houses a swarm of icy rocks that are leftover building blocks, or "planetesimals," from the solar system's creation. The results of the search were announced by a group led by Gary Bernstein of the University of Pennsylvania at a meeting of NASA's Division of Planetary Sciences in Monterey, Calif. Full article
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Re:Hmmm, is it that complicated
Care to give a url of a nice iMac web server to slashdot, and we'll see what OS is superior?
Here you go, as requested, an iMac server. This one happens to be an older G3 iMac running OS X, so......Do your worst, but know that all IP's are logged. :-)
This little iMac get about 30k hits/day and is rock solid. One of the best $600 I ever spent.
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Re:SCO will bill them for...
Funny thing is the state of Utah just got it's own 1000 processor AMD Opteron cluster.
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Re:Third Time's a Charm?
Our little departmental server has been slashdotted twice in the last year and survived!
Oh, come on. Even my little old G3 iMac is capable of handling quite a load from Slashdot and this site is serving up graphics intensive stuff. What you need to prevent a good Slashdotting is bandwidth that universities provide. T3 backbone connections are a wonderful thing. :-)
Go ahead click all you want.
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Because it's science
We try to make as much of our work available on our site to the public because 1) It's science and 2) We are funded through federal grants/taxpayer $$'s and 3) We hope that work we do will help us and others to better understand vision, pathological processes in vision and possibly to rescue vision loss. Another vision educational site can be found here.
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Because it's science
We try to make as much of our work available on our site to the public because 1) It's science and 2) We are funded through federal grants/taxpayer $$'s and 3) We hope that work we do will help us and others to better understand vision, pathological processes in vision and possibly to rescue vision loss. Another vision educational site can be found here.
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Re:The phrase in question seems to be:I agree that too much is being made of this issue.
The distinction which many people fail to make is between what the LGPL is versus what the LGPL mandates. In other words, the LGPL propogates itself to works which are modifications of the original LGPL'd work, but the LGPL only slightly constrains what you do with a (executable) program that uses the LGPL's work unmodified. Those constraints are delineated in Section 6 of the LGPL. Those constraints are not the same thing as the LGPL.
Awhile ago I wrote up this http://www.cs.utah.edu/~gk/teem/lgpl.html to clarify that distinction and justify why I chose LGPL for my software.
Now, if people are up in arms simply because the LGPL constrains how you distribute software which relies on LGPL's software, um, tough. They should be grateful that the LGPL is as unencumbering as it is, in comparison to the GPL.
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Re:Makes me wonder
Makes me wonder if I can load VNC on PocketPC yet...
YES: http://www.cs.utah.edu/~midgley/wince/vnc.html -
Re:What about hands on the wheel?The big problem seems to be that the concentration isn't on traffic even with hands-off versions of mobile phones.
Confirmed by this study.
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Re:NOT the problem with cell phones in cars, dammiHere's some of the research referred to by the parent post:
University of Utah study published January 2003
A key finding: users of handheld and of hands-free cell phones were equally impaired.
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Re:It's not the problemWell put. This idea was entirely confirmed by a University of Utah study earlier this year. Key quote:
...users of hands-free and hand-held cell phones are equally impaired, missing more traffic signals and reacting to signals more slowly than motorists who do not use cell phones.So hands-free phones do nothing to help the problem, regardless of the massive ad campaigns launched by both cell phone manufacturers and automakers to the contrary.
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University of Utah - 802.1x Campus Standard
Hi,
I work at the University of Utah. We're currently rolling out 802.1x.
My building has already rolled out 802.1x on about 36 access points. We've been running for over a month and a half.
We've got a lot of people interested in what we're doing. We're using a decentralized model that allows us to let various departments use their user accounts everywhere else on campus (that is using 802.1x).
Check out our whitepaper for more information:
http://utahgeeks.sourceforge.net/projects/Wireless Whitepaper.pdf
The paper covers various issues. Keep in mind that the paper is not quite done yet, but it does have a lot of useful information.
We're officially supporting Mac OS X, Windows 98, Windows 2k, and Windows XP. We're not officially supporting Linux, but my boss and I are lead developers on the open1x project (http://open1x.sourceforge.net).
It has Linux and Mac OS X support. We support TTLS, TLS, PEAP (in CVS), MD5, and we're going to be implementing EAP_AKA pretty soon.
If you're interested in the specifics please check out some of our support pages:
http://www.laptop.lib.utah.edu/global/support/inde x.html
The biggest problem has been support for various cards on Windows. The support link above lists the cards we've tested.
We're currently only supporting Airport on Mac OS X due to the lack of a public API from Apple. (Please let apple know that you want a public wireless API so we can support more cards... ;)
We're using a campus site license of the Meetinghouse supplicant for Mac OS X, and Windows. We're using Radiator, a perl based (VERY NICE!) radius server. It's 802.1x implementation rocks.
More info on Radiator: http://www.open.com.au
802.1x is becoming the University of Utah campus standard. All future wireless purchases made with student task force moneys will be required to be 802.1x compatible.
Please let us know if you have any questions regarding our setup. -
Re:The right tools
They just plain don't write this stuff for Macs. And they never will.
Actually, there have been a number of companies bringing their high end specialized *NIX code to the Mac including apps for molecular modeling, bioinformatics, GIS etc....
I think a lot of non-open source, non-in-house developed UNIX applications probably won't ever be ported to Mac OS X because it's not taken seriously by folks who write these kinds of apps as a viable platform.
Funny, I have had just the opposite experience.
But the guys who run UNIX at the high-end of the spectrum don't see it as a UNIX, it's a Mac, and it's nice for graphic designers and desktop publishers, and maybe even has some room for people doing surface modeling for design purpose,
I use OS X at the "high-end" of the spectrum to perform computational molecular phenotyping, manuscript preparation, creation of presentations, porting code, surfing the web, experimenting with performing reconstruction using yes, CAD software etc...etc...etc.... and....
and it's certainly no server.
Hosting several web_sites.
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Re:The right tools
They just plain don't write this stuff for Macs. And they never will.
Actually, there have been a number of companies bringing their high end specialized *NIX code to the Mac including apps for molecular modeling, bioinformatics, GIS etc....
I think a lot of non-open source, non-in-house developed UNIX applications probably won't ever be ported to Mac OS X because it's not taken seriously by folks who write these kinds of apps as a viable platform.
Funny, I have had just the opposite experience.
But the guys who run UNIX at the high-end of the spectrum don't see it as a UNIX, it's a Mac, and it's nice for graphic designers and desktop publishers, and maybe even has some room for people doing surface modeling for design purpose,
I use OS X at the "high-end" of the spectrum to perform computational molecular phenotyping, manuscript preparation, creation of presentations, porting code, surfing the web, experimenting with performing reconstruction using yes, CAD software etc...etc...etc.... and....
and it's certainly no server.
Hosting several web_sites.
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Re:Here's why small works
People speaking to people directly. That's the Web, that's what it's for, that's what the megacorps would love to curtail or corral. But the Web will always be about people speaking to people. In that context, small works.
About the only interest from people interested in money is requests we have received from companies wanting us to pay them to get links. No thanks. Our small site concerns retinal anatomy and function and gets approximately 35 thousand hits/day. This is not a for profit site and all material is contributed freely for dissemination etc... Of course the site design is about ten years old and when I can spend some time I will redesign it, but it has been run for no essentially no money and is hosted on an old G3 iMac running OS X, but everywhere I have gone for vision conferences, people know about Webvision or have borrowed material from it for their presentations. It's niche specific impact has actually surprised me.
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BYU Wannabe
With all due respect (none) to out neighbors to the South, at the University of Utah, building a scanner out of legos is an undergrad assignment. Is this all you got BYU? Your are light years from hangin with us.
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Re:You guys are in a dream world
Puhleeeze. Go and get a clue
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Related project: Loading disk images for clusters
This reminds me of a paoper that was just presented at USENIX:
Fast, Scalable Disk Imaging with Frisbee. Fun talk.
Pretty cool tricks - they use multicast and filesystem specific compression techniques to parallel load the disks on a subset of the disks in the cluster. Very very very fast. (I use the disk imaging part of their software to load images on my test machines at MIT, and I'm quite impressed).
Anyway, just a bit of related cool stuff. -
Cartoon
Yeah well, the cartoon referenced in the article does not do justice to OS X. I am running a couple of websites on OS X with one running on a little old G3 iMac that now has around 80 days of uptime. I never have to touch the thing and it is solid and stable as a rock.
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Re:Reparenting window managers are for wimps
Okay, so I'm a little late to the party...
I've said it before, and I'll say it again: There is only one real man... -
Re:Development costs
2003 is a server OS. MacOS X is not, despite Apples best attempts.
I don't know what you are talking about. I have been using OS X as a server OS for some time now and it has got to be the easiest server OS to manage. It is more stable than W2003 server, easier to manage less expensive etc...etc...etc... I am running it here and in several other places in addition to my primary workstation that also hosts a couple of small bandwidth websites.
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Poster of this article: read for answer to your Q.The black line is the output of my ECG with a square wave input (switched by an intricate device called "the hand" pulling in and out a wire). Anyways, the output should be pretty close to a square wave. So I decided to do a little real-time signal processing and came up with a routine that would filter out the effect of the low frequency cutoff.
Hmmm, you should know, as someone who deals with electronics, that obtaining a 'square' wave with the hand is pretty much impossible. There issue at hand is your circuit's impedence. The circuit has self induction, and no matter how cleanly you disconnect the wire, you will get a power spike. Now, on the other hand, if you were to have some sort of electronic gate (such as a transistor) doing the cutting for you, you would still have to 'establish' the current (which will behave like an exponential function - which is actually exactly what we see in the uncorrected black line here.)
Now, I don't know exactly what you were talking about when you mentionned the negative power spike in your EKG reading... but I can tell you the filters you applied were not at all doing what you thought they would be doing. You weren't producing a square signal to begin with... so it's not like your corrections brought you back to the orginal source... it's more like they brought you were you wanted to be.
You really need a wave generator to be able to do square waves... they are theoretically impossible to achieve, and in practice are damn friggin hard. the hand is definitely not good enough =)
Goes to show you how easy it is to forge science results even with the purest of intentions...
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Re:My wife the nurse said ..."Just my 2c worth."
you know, with one more cent you'd have enough for the electrodes
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Re:Already /.ed
As a followup, I would be interested in discovering what the statistics are for a Slashdotting? How many hits are typically recieved after a post on slashdot? What are the most Slashdot resistant configurations? Where are the limitations usually found in a Slashdotting? Is it the router, the OS, the ethernet bandwidth? Hard drive speed? For instance, with a really fat internet connection will a site like this one running on a lowly iMac withstand a Slashdotting?