javajedi
Oct 13, 05:48 PM
ddtlm,
I have my theory as to why java took the lead over C in the sqrt example. There is quite a common misconception about Java that it's always slow, and there is a reason for it. Back in the early days prior to 1.2, it wasn't uncommon to see something like we did here run 10,20, or even 30 times slower then C. VM's today (1.4 /w hotspot) are much smarter than they were years ago. IMO, Hotspot makes the conventional "just in time compilers" look like a thing of the past.
Anyways, when you really think about it, Java really has an extra card up it's sleeve. Sure we tell GCC we want max optimizations, (03, etc), but GCC is limited to compile-time optimization. I think since java has adaptive runtime optimizations, specifically hotspot, the runtime optimization is what really makes the difference.
The reason why it's called "HotSpot", is literally because it looks for "hot spots" by profiling on the fly at runtime. Pretty cool, huh? Your first adaptive optimizations kick in second time the loop is ran. Not to mention the conventional JIT optimizations... code will natively compile and so you eliminate the costly overhead of bytecode translations.
Lastly, I am going to do the matrix operation you spoke about, I have to finish up some course work, so I may not get to it tonight, but as soon as I can devote some time to it, I will.
I have my theory as to why java took the lead over C in the sqrt example. There is quite a common misconception about Java that it's always slow, and there is a reason for it. Back in the early days prior to 1.2, it wasn't uncommon to see something like we did here run 10,20, or even 30 times slower then C. VM's today (1.4 /w hotspot) are much smarter than they were years ago. IMO, Hotspot makes the conventional "just in time compilers" look like a thing of the past.
Anyways, when you really think about it, Java really has an extra card up it's sleeve. Sure we tell GCC we want max optimizations, (03, etc), but GCC is limited to compile-time optimization. I think since java has adaptive runtime optimizations, specifically hotspot, the runtime optimization is what really makes the difference.
The reason why it's called "HotSpot", is literally because it looks for "hot spots" by profiling on the fly at runtime. Pretty cool, huh? Your first adaptive optimizations kick in second time the loop is ran. Not to mention the conventional JIT optimizations... code will natively compile and so you eliminate the costly overhead of bytecode translations.
Lastly, I am going to do the matrix operation you spoke about, I have to finish up some course work, so I may not get to it tonight, but as soon as I can devote some time to it, I will.
bobr1952
May 2, 11:40 AM
I turned off automatically open safe files years ago in Tiger and have migrated that setting over since.
I too turned this feature off a long time ago--but still--this seems like a feature Apple needs to get rid of in Safari--not all that useful and potentially dangerous to unsuspecting users.
I too turned this feature off a long time ago--but still--this seems like a feature Apple needs to get rid of in Safari--not all that useful and potentially dangerous to unsuspecting users.
Don't panic
Mar 15, 03:14 PM
Well, not that I hope he's right, but words like these from people of high up places don't give any comfort.
Europe's energy commissioner Guenther Oettinger dubs Japan's nuclear disaster an "apocalypse,"
http://news.yahoo.com/s/afp/20110315/wl_afp/japanquakelivereport
yes, but it's a figure of speech.
however bad a realistic worst case scenario would be, it will not require permanent evacuation of anything but a few tens of square miles, if that.
for example, this is not going to be as bad as chernobyl by any stretch of imagination, since the design and built of the plant is much safer, and this uses water for cooling instead of graphite which is itself flammable. And in chernobyl, only the immediate surroundings and another area where the fallout was massive are still off-limits.
In addition, this plant is on the seashore, so about half of the contamination will be dispersed into the ocean.
on a separate note, i can confirm takao's post that many japanese cities have built "tsunami walls" including one of the cities shown in one of the videos (where you can clearly see the water coing over a wall and waterfalling into the city. It might have been inefective in a tsunami this massive, but I am sure they can work on smaller ones. One of the California nuclear power plant on the coast also has a similar 25 feet wall.
I also agree with takao on the bizarre design of putting the spent rods in a pool on top of the reactor and without any containment other than the cooling water and the roof.
it seems clearly a design flaw which hopefully will be/has been taken care of in other designs and fixes
Europe's energy commissioner Guenther Oettinger dubs Japan's nuclear disaster an "apocalypse,"
http://news.yahoo.com/s/afp/20110315/wl_afp/japanquakelivereport
yes, but it's a figure of speech.
however bad a realistic worst case scenario would be, it will not require permanent evacuation of anything but a few tens of square miles, if that.
for example, this is not going to be as bad as chernobyl by any stretch of imagination, since the design and built of the plant is much safer, and this uses water for cooling instead of graphite which is itself flammable. And in chernobyl, only the immediate surroundings and another area where the fallout was massive are still off-limits.
In addition, this plant is on the seashore, so about half of the contamination will be dispersed into the ocean.
on a separate note, i can confirm takao's post that many japanese cities have built "tsunami walls" including one of the cities shown in one of the videos (where you can clearly see the water coing over a wall and waterfalling into the city. It might have been inefective in a tsunami this massive, but I am sure they can work on smaller ones. One of the California nuclear power plant on the coast also has a similar 25 feet wall.
I also agree with takao on the bizarre design of putting the spent rods in a pool on top of the reactor and without any containment other than the cooling water and the roof.
it seems clearly a design flaw which hopefully will be/has been taken care of in other designs and fixes
Mord
Jul 12, 05:19 PM
jiggy:
your thinking is exactly why most pc's suck, dell ect choose components that are "good enough" or choose some unsuitable cpu because it sounds fast, woodcest makes the most sense to go into the mac pro, conroe into the imac merom into the mbp simple as.
just because something is not for you does not mean how you want it is how it should be, your a kid who likes playing with pc hardware and likes components with "big numbers" and overclockability, and while a quad would be wasted on you it'd be great for people who actually buy mac pro's/powermacs.
you give pc users a bad name it's not the other way around.
your thinking is exactly why most pc's suck, dell ect choose components that are "good enough" or choose some unsuitable cpu because it sounds fast, woodcest makes the most sense to go into the mac pro, conroe into the imac merom into the mbp simple as.
just because something is not for you does not mean how you want it is how it should be, your a kid who likes playing with pc hardware and likes components with "big numbers" and overclockability, and while a quad would be wasted on you it'd be great for people who actually buy mac pro's/powermacs.
you give pc users a bad name it's not the other way around.
imacintel
Aug 29, 08:51 PM
Why do these "tree-huggers" have to interfere with business?
Apple does what they can to have more "enviornmentally-friendly" ways of processing their products. But 4th worst?
This is where I agree with you. I don't call myself a tree hugger. Sure, I love the earth and planet but sometimes people take it too far.
Apple does what they can to have more "enviornmentally-friendly" ways of processing their products. But 4th worst?
This is where I agree with you. I don't call myself a tree hugger. Sure, I love the earth and planet but sometimes people take it too far.
I'mAMac
Aug 29, 02:45 PM
Exactly. There are more people. So if people today create 1/2 the pollution they did 20yrs ago but now there are twice as many people there is no change.
We are doomed! :D
You understand my point :D
We are doomed! :D
You understand my point :D
flopticalcube
Apr 22, 08:09 PM
I consider myself an atheist who tries to back up my points with facts. I've seen most other posters who are atheists do the same. I hope you are wrong about it being a "trendy" thing to do but I do hope more people see the reasoning behind atheism and join us for the correct reasons. As far as agnostics go, I know the difference between us and I couldn't care less....close enough in my eyes!!!! An atheist and an agnostic arguing to me is like hearing a Catholic and a Protestant argue....such a small difference in something so important.
To be fair there are both agnostic atheists and agnostic theists. I would assume most atheists fall in the former category.
To be fair there are both agnostic atheists and agnostic theists. I would assume most atheists fall in the former category.
iStudentUK
Mar 13, 01:55 PM
I had not even been born when Chernobyl happened so I know very little about how it affected us. Like others have said, it's safe as long as it is used by responsible country. From what I've read, Chernobyl used ancient and much more vulnerable technology than today's plants use plus they were performing some kind of an experiment which fought against safety rules.
Yes, Chernobyl (a level 7 disaster) is the worst nuclear power disaster to date, but it was caused by massive negligence and using technology that was considered unsafe in the West. The incident in Japan was nothing like this at all.
A nuclear plant had what is classified as the International Nuclear Event Scale as a "level 4 accident" following an enormous earthquake and then a tsunami. The Japanese government have reacted swiftly and evacuated people. The levels of radiation released are nothing to panic about.
I'd love to see a world powered by wind, sun and rainbows but that isn't realistic yet. I'd much rather we move away from fossil fuels to nuclear and renewable, and slowly shifting the balance further towards renewables over time as technology improves.
Yes, Chernobyl (a level 7 disaster) is the worst nuclear power disaster to date, but it was caused by massive negligence and using technology that was considered unsafe in the West. The incident in Japan was nothing like this at all.
A nuclear plant had what is classified as the International Nuclear Event Scale as a "level 4 accident" following an enormous earthquake and then a tsunami. The Japanese government have reacted swiftly and evacuated people. The levels of radiation released are nothing to panic about.
I'd love to see a world powered by wind, sun and rainbows but that isn't realistic yet. I'd much rather we move away from fossil fuels to nuclear and renewable, and slowly shifting the balance further towards renewables over time as technology improves.
GGJstudios
May 3, 08:09 PM
I just waded through this god-awful thread and almost every single post that said anything positive about Windows in any way, shape or form (truth or nonsense alike) got zapped with negative votes.
You're making a huge assumption that the people who vote on posts are the same people who are posting in a thread. The post voting feature is new and there is no way to know who is using it. People who read the thread can vote, even if they don't post. Personally, I think voting on posts is a waste of time, since you have no idea who votes or why. There have been 240+ posts in this thread, and over 21,900 views, any number of which could be voting on posts. You do the math.
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You're making a huge assumption that the people who vote on posts are the same people who are posting in a thread. The post voting feature is new and there is no way to know who is using it. People who read the thread can vote, even if they don't post. Personally, I think voting on posts is a waste of time, since you have no idea who votes or why. There have been 240+ posts in this thread, and over 21,900 views, any number of which could be voting on posts. You do the math.
bluap84
Mar 11, 05:36 AM
11.31am: The Associated Press has more details on the state of emergency issued at nuclear plant after its cooling system failed:
Chief cabinet secretary Yukio Edano says the nuclear power plant in Fukushima developed a mechanical failure in the system needed to cool the reactor after it was shut down in Friday's earthquake.
He said the measure was a precaution and there was no radiation leak at the Fukushima No. 1 power plant. He said the facility was not in immediate danger.
----------------------------------------------
Thats pretty bloody serious.... eeeek :eek:
Chief cabinet secretary Yukio Edano says the nuclear power plant in Fukushima developed a mechanical failure in the system needed to cool the reactor after it was shut down in Friday's earthquake.
He said the measure was a precaution and there was no radiation leak at the Fukushima No. 1 power plant. He said the facility was not in immediate danger.
----------------------------------------------
Thats pretty bloody serious.... eeeek :eek:
arn
Oct 7, 04:51 PM
Originally posted by samdweck
well then just get the heck out of here, leave, please, it may happen soon! godspeed!
Sam... you need to chill.
Personal attacks and pure emotional posts are not very helpful. The point of this site is not to be Pro-Mac at all costs.
A fast enough Pentium will beat a 1.25GHz G4. How fast the Pentium has to be appears to be a point of contention... but that's all it is... as long as people keep it civil... it's cool.
Besides, alex_ant's post was a joke. Slow down, and read the intent of the posts.
arn
well then just get the heck out of here, leave, please, it may happen soon! godspeed!
Sam... you need to chill.
Personal attacks and pure emotional posts are not very helpful. The point of this site is not to be Pro-Mac at all costs.
A fast enough Pentium will beat a 1.25GHz G4. How fast the Pentium has to be appears to be a point of contention... but that's all it is... as long as people keep it civil... it's cool.
Besides, alex_ant's post was a joke. Slow down, and read the intent of the posts.
arn
Rodimus Prime
Mar 13, 11:50 PM
Why can't people get away from the concept of a centralized power source, like a coal or nuclear plant or even a wind farm to generate their national needs? I even see arguments that 'we don't have the space' for alternative power. Look at an aerial photo of any city and all you see is miles and miles of dead empty blank rooves. Solar panels or even small wind turbines on every single roof in every city will have people either reducing their reliance on a central power source or even contributing their own electricity to the grid to the point you may not even need a central power source, or maybe just one - which could be a wind farm or a nice clean geothermal plant.
I sure as hell would not want wind turbines on the roof of houses. The noise from them would drive me insane.
I am a fan of putting solar cells on the roof of houses and then the excess power is sold back to the grid. That helps reduce it by a fair amount. Not that it would work in a large part of the country due to not being cost effective. You need to be farther south for it to really be worth it and have fair amount of sun shine.
biggest thing is we need more efficiency out of what we have. HVAC is some of the biggest power draining system and improve those and it greatly improves the over all system.
I sure as hell would not want wind turbines on the roof of houses. The noise from them would drive me insane.
I am a fan of putting solar cells on the roof of houses and then the excess power is sold back to the grid. That helps reduce it by a fair amount. Not that it would work in a large part of the country due to not being cost effective. You need to be farther south for it to really be worth it and have fair amount of sun shine.
biggest thing is we need more efficiency out of what we have. HVAC is some of the biggest power draining system and improve those and it greatly improves the over all system.
leekohler
Mar 28, 12:57 AM
I was just replying to your previous note, Lee. But I stopped writing because I wanted to reconsider what I was saying and to ensure that I expressed my thoughts as politely as I could express them.
I accept same-sex-attracted people as they are. But I won't accept some things that many of them do.
Then you don't accept us as we are. All of us are what we do. That's the measure of any human being. We can all say all kinds of things, but in the end, what we do is what matters.
I accept same-sex-attracted people as they are. But I won't accept some things that many of them do.
Then you don't accept us as we are. All of us are what we do. That's the measure of any human being. We can all say all kinds of things, but in the end, what we do is what matters.
29point97
Apr 12, 11:55 PM
Wirelessly posted (Mozilla/5.0 (iPhone; U; CPU iPhone OS 4_2_1 like Mac OS X; en-us) AppleWebKit/533.17.9 (KHTML, like Gecko) Version/5.0.2 Mobile/8C148 Safari/6533.18.5)
Just left. Waiting at the airport with some huge questions as a commercial editor. No talk of motion. If it's an app store download might be a small program no motion presets or content. I honestly wonder if there is a tape capture window. I didn't see a filters tab XML support or any kind os manager. Seems you edit color and export. I'm hoping it was just the sneakest of peeks and that there's a lot more hiding in there. Otherwise I'm holding onto fcp7 for dear life and wait for 11.
Just left. Waiting at the airport with some huge questions as a commercial editor. No talk of motion. If it's an app store download might be a small program no motion presets or content. I honestly wonder if there is a tape capture window. I didn't see a filters tab XML support or any kind os manager. Seems you edit color and export. I'm hoping it was just the sneakest of peeks and that there's a lot more hiding in there. Otherwise I'm holding onto fcp7 for dear life and wait for 11.
Aduntu
Apr 22, 09:14 PM
to think that the earth is only several thousand years old ... IMO is not intelligent or rational thinking.
I agree. It's also not a bible teaching.
I agree. It's also not a bible teaching.
digitalbiker
Sep 24, 01:50 AM
I'm 99% sure the machine is intended as an independent hub that can use iTunes libraries on the same network but can also go to the iTS directly and view content straight from there (and possibly other sources, such as Google Video.)
You are going to be sorely disappointed then!.
The iTV most definitely requires a computer. The iTV is a like a suped up Airport extreme for video. It has already been demoed and it requires a computer. The computer streams the iTunes content to the iTV and the iTV receives the stream and translates it into video and audio out via an HDMI or SVGA connection to your TV. The iTV also supports front row and allows remote control of the iTunes source machine.
There maybe more features in the future but those are the reported and demoed features.
You are going to be sorely disappointed then!.
The iTV most definitely requires a computer. The iTV is a like a suped up Airport extreme for video. It has already been demoed and it requires a computer. The computer streams the iTunes content to the iTV and the iTV receives the stream and translates it into video and audio out via an HDMI or SVGA connection to your TV. The iTV also supports front row and allows remote control of the iTunes source machine.
There maybe more features in the future but those are the reported and demoed features.
Swift
Mar 18, 03:44 PM
DRM is a big, fat target for every hacker in the world. I doubt very much it will ever be perfect. It can't be. It would be easy to encrypt music so badly that you couldn't play it. To allow legit users to listen to it means the key is already there. The hacker just finds it.
carfac
Sep 12, 06:55 PM
The iTV is a winner for these reasons:
1) It does stream HD content -- Just because the iTunes content is NOT HD (it is near DVD) does not mean the DEVICE is not capable. In fact it uses the HDMI connector (as well as S and componet video) and the built in wireless AND gigabit ethernet insure the bandwidth is there for future HD content.
OK, I will grant this- but the software is (NOT YET) HD. Suppose it will be, though. But the TIVO is also HD, so the point is mute
2) The iTV defeats TIVO in NOT NEEDING a Hard Drive. The PC or MAC Desktop BECOMES the Media Server.
And you see this as an advantage??? I do not have much HD space left, so I must buy ANOTHER box for that, too? No, I want it all in one. Point TIVO
3) Tuners: Numerous Third Solutions (elgato for example) exist right now to capture High Def video to the Mac and PC -- the stream is pauseable.
ANOTHER Flipping Box for me to add??? So I have iTV, a Mac, Another HD, and now this???? Vs. a TIVO box. Yeah, no brainer here! Tivo Point
4) HD DVD -- With Blue Ray forthcoming, the Mac can still add DVD content to iTunes and then stream to iTV.
Look at the box- no room for an optivcal drive. So, add one to my mac, or add another flipping box. On top of whick, do you REALLY think the studios are going to let something out that will easily go to a disk? No Point.
5) Multiple Streams/Multiple TVs -- iTV beats Tivo in that you can use multiple iTV's connected to a powerful desktop to service multiple monitors using the Front Row Interface.
You have never set up a Tivo, have you? No Point.
6) The platform to expand: Apple's resources are superior to Tivo's and they will evolve beyond Tivo in the coming 2 years
This is an arguement with no basis. Why, because you say so? Because you are an Apple Fan Boy, and apple can do no wrong?
The thing is, I do not want 500 boxes in my living room, and 400 remotes to control all the different aspects of it. I want something all in one box, that works without me having to add something.
This MAY be an option for techno-nerds and such, but it is by no means a Tivo Killer- it does not even compare.
d
1) It does stream HD content -- Just because the iTunes content is NOT HD (it is near DVD) does not mean the DEVICE is not capable. In fact it uses the HDMI connector (as well as S and componet video) and the built in wireless AND gigabit ethernet insure the bandwidth is there for future HD content.
OK, I will grant this- but the software is (NOT YET) HD. Suppose it will be, though. But the TIVO is also HD, so the point is mute
2) The iTV defeats TIVO in NOT NEEDING a Hard Drive. The PC or MAC Desktop BECOMES the Media Server.
And you see this as an advantage??? I do not have much HD space left, so I must buy ANOTHER box for that, too? No, I want it all in one. Point TIVO
3) Tuners: Numerous Third Solutions (elgato for example) exist right now to capture High Def video to the Mac and PC -- the stream is pauseable.
ANOTHER Flipping Box for me to add??? So I have iTV, a Mac, Another HD, and now this???? Vs. a TIVO box. Yeah, no brainer here! Tivo Point
4) HD DVD -- With Blue Ray forthcoming, the Mac can still add DVD content to iTunes and then stream to iTV.
Look at the box- no room for an optivcal drive. So, add one to my mac, or add another flipping box. On top of whick, do you REALLY think the studios are going to let something out that will easily go to a disk? No Point.
5) Multiple Streams/Multiple TVs -- iTV beats Tivo in that you can use multiple iTV's connected to a powerful desktop to service multiple monitors using the Front Row Interface.
You have never set up a Tivo, have you? No Point.
6) The platform to expand: Apple's resources are superior to Tivo's and they will evolve beyond Tivo in the coming 2 years
This is an arguement with no basis. Why, because you say so? Because you are an Apple Fan Boy, and apple can do no wrong?
The thing is, I do not want 500 boxes in my living room, and 400 remotes to control all the different aspects of it. I want something all in one box, that works without me having to add something.
This MAY be an option for techno-nerds and such, but it is by no means a Tivo Killer- it does not even compare.
d
dragonsbane
Mar 20, 06:19 AM
It is not the law that made iTunes music incompatible with other MP3 players, it's the file format and DRM design. Further, Apple has done nothing illegal in its choices and implementation. There is therefore no legitimate reason to break the law--your rights are what you agreed to when purchasing the music and nothing more.
By that logic, women would still not be able to vote. Look at other societies that do not allow people to protest "unjust" laws. Compare where they stand to where we stand. I am simply trying to take us further still down the road of freedom for all humans. Anything that acts to restrict the natural association of humans is a Bad Thing�. DRM, by definition, falls into this category.
DRM does not, in theory, infringe on your license rights.
Again, I am bound by these laws but I do not need to AGREE with them. Do you agree with them? [That is a direct question btw.]
Your freedom of choice comes with certain sacrifices
All actions (free or not free) require sacrifices. So what is your point?
and restrictions, none of which have been imposed on you illegally or prohibit you from legal use of the product. The only reason to break the law here is for the purpose of breaking the law, not for any delusions of your rights to do as you wish with music.
Option A (Legal Participation): Buy the music and abide by the laws
Option B (Legal Non-Participation): Don't buy the music and not be subject to any laws
Option C (Something Different): Think for yourself and live life according to your own laws
I will take C cuz it allows for both A & B while reserving my ability to think for myself. Even if I end up the same place as you, the journey I took to get there will make all the difference.
By that logic, women would still not be able to vote. Look at other societies that do not allow people to protest "unjust" laws. Compare where they stand to where we stand. I am simply trying to take us further still down the road of freedom for all humans. Anything that acts to restrict the natural association of humans is a Bad Thing�. DRM, by definition, falls into this category.
DRM does not, in theory, infringe on your license rights.
Again, I am bound by these laws but I do not need to AGREE with them. Do you agree with them? [That is a direct question btw.]
Your freedom of choice comes with certain sacrifices
All actions (free or not free) require sacrifices. So what is your point?
and restrictions, none of which have been imposed on you illegally or prohibit you from legal use of the product. The only reason to break the law here is for the purpose of breaking the law, not for any delusions of your rights to do as you wish with music.
Option A (Legal Participation): Buy the music and abide by the laws
Option B (Legal Non-Participation): Don't buy the music and not be subject to any laws
Option C (Something Different): Think for yourself and live life according to your own laws
I will take C cuz it allows for both A & B while reserving my ability to think for myself. Even if I end up the same place as you, the journey I took to get there will make all the difference.
larrybeo
Mar 18, 09:43 AM
People who complain that your service provider is going to make you follow the ru:eek:les unnerve me with their uncanny ability to disregard all that stands to reason with the sustainability of your "toys." They are like little sissies on the playground crying after a Barbie Doll has been taken from them. Those people should man up and start paying for the footprint they leave on the network.
ezekielrage_99
Aug 30, 07:29 AM
Thank God Apple users just amount 3% -or something like that- in the computer industry (forget about the ipod)...
If everybody thought like most people in this board, the world would be a more scarier (if possible) place to live in...
I wonder if Dell rated highly because of that battery thing :confused:
If everybody thought like most people in this board, the world would be a more scarier (if possible) place to live in...
I wonder if Dell rated highly because of that battery thing :confused:
Silentwave
Sep 26, 12:20 AM
Why would they change the basic configuration of the Mac Pro? The two Clovertown chips will just appear as high end options as soon as they become available.
Look at the prices. you can get 8 cores (2.33GHz) at the same price that 4 3GHz cores cost you now. My bet is that Woodcrest will see a moderate price drop upon Clovertown's introduction.
Look at the prices. you can get 8 cores (2.33GHz) at the same price that 4 3GHz cores cost you now. My bet is that Woodcrest will see a moderate price drop upon Clovertown's introduction.
Dr.Gargoyle
Jul 11, 10:42 PM
Sounds like these new Mac Pros are going to be expensive.
I doubt that Apple are able to charge the "normal" Mac premium after the intel transition, since it is much simpler to compare Macs with another PCs. Almost like Apple for Apple. ;)
I doubt that Apple are able to charge the "normal" Mac premium after the intel transition, since it is much simpler to compare Macs with another PCs. Almost like Apple for Apple. ;)
fatphone4
Jun 27, 10:50 AM
I was on sprint for 10 years, dropped 6 to 7 calls a day. I switched one of my 8 phones into AT&T (iphone) to test it out. I did not drop a single call for 3 weeks. So I cancelled all my sprint lines and switched to AT&T, been on AT&T for 8 months maybe 6 dropped calls since. Much better service IMO
