Wednesday, March 28, 2007

/G8-Politics/Germany

Wednesday, March 28, 2007 at 04:05
Subject: /G8-Politics/Germany/
NEWS FEATURE: Biggest police operation in German history for G8
By Joachim Mangler, dpa

Heiligendamm, Germany (dpa) - The "biggest police operation in the history of Germany" is taking shape at a beach resort on the Baltic coast as the June 6-8 summit among the Group of Eight (G8) nations approaches.
 
Sightseers are already heading to the environs of Heiligendamm, the remote seaside venue chosen by the German hosts as the summit, to ogle at a 2.5-metre-high welded-mesh fence topped with barbed wire which has already been built round the resort.

While the details are top secret, the chief of German federal police, Joerg Ziercke, revealed last year that the operation is without parallel in Germany's past. Presidents or government chiefs from seven western nations and Russia will take part in the summit.

The police force specially conceived for the summit with personnel seconded from around the country is code-named Kavala, from the name of a Greek seaside place which many Germans compare with Heiligendamm as a "white town beside the sea."

The temporary fence, 13 kilometres long and equipped with closed- circuit video cameras to detect any infiltrators, cost the German government 12.5 million euros (16.6 million dollars).

When the zone within the fence is closed to the public on May 30, the area will probably become the best-policed place in the whole of Europe. An expected 100,000 demonstrators, most of them opponents of globalization, are not permitted to approach the fence.

Protesters are likely to defy the ban.

"Getting up to the fence is our objective," most of them say, describing the barrier as a symbol of how the G8 "closes itself off against the rest of the world." Many of the 16,000 police assigned to the summit will be employed keeping the protesters at a distance.

The G8 opponents say they will also try block roads, though they say they do not imagine this will stop any world leaders. "They'll all be using helicopters," shrugged a leader of the Block G8 group.

The protesters say they will regard it as a victory if they can delay the arrival of thousands of government officials advising the summit leaders in Heiligendamm.

Knut Abramowski, the commander of Kavala, comments curtly, "We won't let them block anything."

The remoteness of Heiligendamm, surrounded as it is by farmland, woods, a lake and the sea, is both a boon and a problem for police, since it stretches police lines of communication and deployment.

The nearest airport is nearly 60 kilometres away and the nearest city, Rostock, 20 kilometres through an area with poor roads.

On the Saturday before the summit, tens of thousands of protesters plan to attend a rally in Rostock, and it is conceivable some might walk off into the countryside towards Heiligendamm.

To stop anyone attacking the summit from above, an aerial exclusion zone with a radius of 50 kilometres from the summit hotel will be imposed.

However Abramowksi said it would not apply to international airliners provided they stay 10,000 metres high or higher. Usually German air force patrols police such zones.

A small naval exclusion zone will be declared offshore in mid-May and this will be extended on June 3 to embrace nearly 21 kilometres of coast up to 11 kilometres from the white-sand beach.

Police refuse to confirm news reports that two US warships will help patrol offshore, with additional responsibility to intercept any incoming missiles.

This would not be a novelty: when US President George W. Bush stayed in Heiligendamm in July last year during a visit to Germany, a US warship very visibly cruising in the Baltic offshore.

Sunday, March 11, 2007

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Becoming Human: Paleoanthropology, Evolution and Human Origins

MARCH 7, 2007
Archeologists Find Evidence of Chimp Tool Use

Archaeologists Find Signs Of Early Chimps' Tool Use
By JOHN NOBLE WILFORD
Published: February 13, 2007
In the rain forest of the Ivory Coast 4,300 years ago, chimpanzees gathered in groups and cracked nuts the best they could, the Stone Age way. Place the nut on a hard, flat rock. Take a heavy hammer rock, and pound the nut. The chimps must have feasted well and often there under the trees by a black-water river.
Archaeologists digging in Tai National Park in Ivory Coast reported yesterday the discovery of several sites where such nut-cracking chimps long ago left broken and discarded stones that were used as natural tools. Starch residues from nuts were lodged in crevices of the stones.
This was the earliest strong evidence of chimpanzee tool use, researchers say in the current issue of the Proceedings of the National Academy of Sciences. The discovery team included scientists from Canada, Britain, Germany and the United States.
Chimps in the wild were first observed using stone tools in the early 19th century, and earlier remains of their material culture are scant. No artifacts have come to light showing that chimps have ever deliberately made stone tools by chipping, flaking and other methods, as prehuman species were doing as early as 2.6 million years ago.
The archaeologists, led by Julio Mercader of the University of Calgary in Canada, said the findings in Ivory Coast, in West Africa, indicated that these chimps developed the nut-cracking behavior without human influence. The stones are unlike any food-processing implements used by humans in the region today, and they have use and wear patterns consistent with what is seen in modern chimp sites. The sizes and shapes of the stones appear to be more suited to the large, strong hands of chimps than to human hands.
The remains at the sites, moreover, are virtually identical to what today's tool-using chimps leave behind. The material was buried as much as three feet deep and mixed with charcoal from natural forest fires. Radiocarbon analysis of the charcoal determined the age of the site.
So if chimps 4,300 years ago were not mimicking humans, the research group suggested that their capacity for tool use could have been inherited from the last ancestor that the chimp and human lineages have in common. In interviews, Dr. Mercader and John W. K. Harris of Rutgers University, another team member, contended that the new findings gave substance to that hypothesis.
Other experts in early stone tool technology said the analysis of the chimpanzee tool-use sites appeared to be sound, but they had reservations about the interpretations linking the behavior to common ancestors.
Dr. Mercader said extreme care was taken to separate pieces of stone that had been modified through use as a nutcracker from those that are naturally fractured stones often found in streams. He said independent experts, including Dr. Harris, were called in for blind tests, and they scored about 95 percent correct in recognizing the stones the chimps had used as tools.
In any case, other archaeologists agreed with the research team's concluding observation: ''That nut-cracking behavior in the Tai forest has been transmitted over the course of more than 200 generations, and that chimpanzee material culture has a long history whose deep roots are only beginning to be uncovered.''


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Friday, March 09, 2007

Image Gallery: Will Negroponte's One Laptop Per Child be a problem for Microsoft?

Image Gallery: Will Negroponte's One Laptop Per Child be a problem for Microsoft? by ZDNet's David Berlind -- Last week, while at an AMD press conference, one of the agenda items had to do with AMD's efforts to help bridge the digital divide (in other words, put computing power that's typical of the haves in the hands of the have-nots). AMD's most visible project on this front has to do with it's involvement [...]

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The Myth of "MEGAPIXEL"

The final word on the 'megapixel myth'

There's been a lot of talk of the "megapixel myth" lately all started by David Pogue of the New York times declaring that megapixels are a "big fat lie".  Fellow blogger David Berlind also did an entire series of blogs with his own sets of tests declaring "there's a good chance you'll never need more than 3 or 4 megapixels from your camera".  I read the articles and blogs and I took a look at the methodologies described and I found some serious problems that affected the conclusions.  Here's a list of issues and I'll explain each one.  [Update 11:00 PM - Pogue responded in the talkback and I responded to him.]

  1. Computer down-sampling was used to render lower resolution images
  2. Lack of adequate test patterns for resolution testing
  3. Lossy compression JPEGs were used which adds artifacts
  4. Lens and motion factors not accounted for
  5. Not all image sensors are created equal
  6. Megapixels are a unit of area and not resolution
  7. Actual resolutions needed for printing

1: The first MAJOR issue is the use of computer down-sampling (or down-sizing) to generate lower resolution samples.  Someone pointed that out to Pogue that it may invalidate the results but Pogue ignored it with the simple comment "I'm not entirely convinced".  Now David Pogue is attempting to conduct a "scientific" experiment in order to prove his hypothesis that the digital camera industry is pushing the "big fat lie" of more megapixel yet Pogue sees no problem synthesizing the data and violating fundamental science principals.  Now I understand Pogue is no scientist, but he reaches a massive audience and he has the responsibility to be accurate when he's making such bold and damning assertions about an industry.  I'm going to explain why this completely invalidates his experiments.

Whenever you down-sample a computer image especially when you use a high quality algorithm provided by something like Photoshop, you are guaranteed to get improved image quality because all the noise, lack of focus, and slight motion blur in the image is averaged out and you're left with the purest of images that maximizes the effectiveness of every single pixel.  If you took a 4500×3000 (13.5 megapixel) image from a high-end camera and down-sampled it to 2250×1500 ( 3.375 megapixel) image, I can guarantee you that the resulting 3.375 megapixel image will be vastly superior to any image captured from a native 4 megapixel image.  Pogue simply assumes that a down-sampled image is the same as a lower resolution image captured with fewer megapixels.  Not only is it an assumption, it's a really bad assumption and anyone who does the experiment or works with digital images a lot will know that the native 4 megapixel camera will invariably have noise and imperfections in the image.  The down-sampled 3.375 megapixel image on the other hand will have far fewer imperfections because the noise happens at the 13.5 megapixel level and it's mostly averaged out to produce a very clean image at 3.375 megapixels.  [Updated 11:00 PM - Pogue did capitulate and allowed a professional photographer to use cropping instead of down-sampling to come up with lower megapixels.]

Which Windows Vista to use?

Choosing between Vista x86 32 bit or x64 64 bit

 
One of the more common questions I hear about Vista is which bit version of Windows Vista should one get.  Do we go with x86 32 bit edition or x64 64 bit edition?  I'm going to try to clear that question up as best as I can and explain the pros and cons of each choice.

First we must understand a little background on what x64 is.  X64 is the 64 bit extension technology that AMD invented (AMD64) to seamlessly migrate the 32 bit x86 (as in 286, 386, 486 compatible microprocessors) world into a 64 bit era.  Intel in partnership with HP had refused to extend the ancient x86 platform and had already committed to its all new pure 64 bit IA-64 Itanium architecture.  While Itanium was fundamentally superior, its x86 emulation provided inferior performance for existing applications and the adoption rate was very slow.  Intel had hoped that the market would leap to the new platform but there was no seamless way of making that migration, and Itanium failed to gain widespread adoption.  AMD took the opportunity to extend the existing x86 architecture with 64 bit capability by handling 64 bit CPU registers and adding a lot more registers, and it was immediately greeted warmly by the market.  In a reversal of roles, Intel found itself copying AMD64 (permitted by an AMD-Intel cross-licensing agreement) and calling it EM64T.  The two x64 technologies are essentially identical except for a few minor differences in the implementation.

Microsoft initially created a version of Windows XP called XP 64 bit Edition, a pure 64 bit operating system that ran on IA-64 Itanium and only supported x86 applications through emulation.  There was even a Windows 2000 Server version for IA-64 as well.  The problem was that the adoption rate of IA-64 was very slow, and when AMD created AMD64–with Intel having no choice but to follow–Microsoft created the x64 edition of Windows XP as well as Windows Server 2003.  The x64 editions were hybrid 32/64 bit operating systems that could natively run 32 or 64 bit code at full speeds without software emulation, whereas the 64 bit edition of Windows XP relied on software emulation to run existing x86 32 bit code.  With the release of Vista, Microsoft simultaneously launched the 32 bit x86 and the 64 bit x64 editions.  The retail editions contain both the x86 and x64 editions, while the OEM versions contain one or the other and you have to decide before you order.  Now one of the most common questions people ask is whether to run 32 or 64 bit Vista.

The first thing you must do is to make sure your particular CPU supports x64. [Dave Leigh in the talkback posted this link to Steve Gibson's x64 detector which is a simple utility to check your hardware.] Here's a simplified summary of the situation:

  • Almost all new servers sold within the last two years from AMD or Intel will have x64 capability.
  • Most mid- to high-end desktop processors from AMD or Intel within the last year have x64 capability.
  • Some higher-end Semprons have x64; lower-end Semprons do not.
  • No AMD Durons have x64.
  • All AMD Opteron processors have x64.
  • All AMD X2, FX, and Athlon64 chips have x64.
  • All Intel Pentium D and Celeron D chips have x64.
  • All AMD Turion notebook processors have x64.
  • All Intel Core 2 processors (mobile, desktop, and server) have x64.
  • No Intel Core Duo notebook processors have x64
  • No Intel Pentium M notebook processors have x64.

The second thing you must check is to see if all your hardware has x64 Vista driver support, either included in the OS or downloadable from the hardware vendor.  At this point, many motherboard makers have failed to include the latest 5.1 sound and network drivers, and you might have to look to the chipset maker for drivers.  For example, you can find Realtek 32/64 bit drivers here for Gigabit LAN and 5.1 audio support.  NVIDIA has the latest 32 bit and 64 bit drivers.  ATI (AMD) has 32 and 64 bit drivers here.  Creative has drivers here, but its x64 support is sorely lacking, and it's either missing or in beta.  While these are the fundamental hardware drivers you'll need, the killer for Vista x64 edition is finding drivers for obscure hardware like cameras, printers, scanners, and other accessories.

You don't have to worry about 32 bit software compatibility in Windows Vista or XP x64, since they run natively and seamlessly, but drivers are an absolute killer.  If you happen to find 32 bit drivers for your device but no 64 bit drivers, you're out of luck if you're running x64 Windows XP or Vista.  For this reason, x64 edition for a typical consumer is usually not very practical because there are simply too many hardware peripherals you won't be able to use.  Getting the computer itself to work is relatively easy; it's the one or two obscure devices that stops you dead in your tracks if you must have that device working.  For this reason, no PC maker (that I'm aware of) will pre-load x64 edition of Windows on its PC because it will be a support nightmare if a customer starts complaining about a printer driver that won't load.  To this date, Apple iTunes won't support any x64 edition of Windows, and it will absolutely not work at all because of hardware driver issues.

Servers, on the other hand, don't typically ever need to see peripheral devices, and they need to work with only the limited set of hardware they're sold with.  Any self-respecting server hardware trying to sell you something like an HBA Fiber Channel adapter or iSCSI adapter will have to offer full x64 support.  Microsoft Exchange Server 2007, for example, ONLY comes in x64 editions, and we're likely to see more software coming out like this to promote 64 bit.  There is very little risk in standardizing on x64 edition in the data center since all legacy 32 bit applications will run natively at full speed.

Dedicated workstations for professionals are another great candidate for x64 edition so long as they're willing to put up with limited peripheral support.  x64 allows high performance computing tasks to run extremely fast and efficiently.  The free Paint.NET image editing application, for example, is fully optimized for multi-core and x64, yet Adobe can't get its act together and won't even release an x64 edition of the upcoming Photoshop CS3.  That doesn't mean you can't run x86 Photoshop; in fact, it will still probably run a little better on Windows x64 because more than 4 GBs of RAM can be supported with ease, which gives more memory to Photoshop.  It's just a crying shame for Adobe to lag behind, because Paint.NET has shown tremendous speed increases using x64 for filtering and layering effects on the order of 50 to 100 percent speed boosts.  Adobe should have been supporting x64 two years ago and it won't even do it next year.

The bottom line is that you have to look at your own hardware limitations before you can make any kind of a transition.  If all the hardware you want to use will work on Vista x64, it's well worth the transition.

 Will you choose a 64 bit OS?

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