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Biotech

Create Living Cells With an Inkjet Printer 100

MattSparkes writes to tell us New Scientist has an article on the use of inkjet printing technology in creating biological tissue. From the article "An inkjet device that prints tiny 'bio-ink' patterns has been used to simultaneously grow two different tissues from the stem cells of adult mice. Surgeons could one day use the technology to repair various damaged tissues at the same time, the researchers say."
Displays

Self-Recycling Paper 143

fermion writes "Xerox is reported to be working on some interesting forms of digital paper. The New York Times reports a 16 hour reusable paper. This system uses a coated paper and special ink to produce a copy that will fade over 16 hours, or sooner if the paper is put back in the copy tray. It can then be reused for a new copy, up to 10 times. According to the article, the rational for this is that paper is no longer used to store information, but merely to temporarily display it. The research suggest that in the typical office many copies end up in the recycle bin by the end of the day. The main obstacle to commercialization seems to be the question of whether people need this product. Will people have digital displays that will take the place of paper? Will something radically different from plain paper, but with competitive costs and characteristics, become popular? Xerox itself is working on something called gyricon, a system of tiny bichromal beads encased between sheets of plastics. Evidently the beads can be set electrically to either reflect of absorb light, thus allowing images to be generated at will. According to the page, the images can be set by a printer or a hand held wand. The 'paper' could even be combined with electronics to create a flexible display. So, /., where is our display technology headed? Coated conventional paper? Plastic reprintable paper? Glasses with heads up displays and wireless data feed?"

Drivers License Swipes Raise Privacy Concerns 313

Clubs in New York, New Jersey, and elsewhere are requiring patrons to give up their drivers licenses for a swipe through a card reader. Some bars do this too. The card reader displays their birth date and the establishments let it be assumed that the only purpose of the swipe is to check the customer's age. They rarely if ever disclose that the personal data stored on the license — the customer's name, address, license number, perhaps even height, weight, and eye color — go into a database and are retained, perhaps indefinitely. While a federal law forbids selling or sharing data from drivers licenses, there is no prohibition against collecting it. A few states have enacted such prohibitions — New Hampshire, Texas, and Nebraska. Privacy advocates warn that such personal data, once in a database, is bound to be misused. From the article: "'I don't see no problem,' said [a club-goer], 22. 'That happens every day on the Internet. Any hacker can get the information anyway.' [A Web media executive] said such reactions aren't surprising from a generation accustomed to sharing personal information on Web sites such as Facebook.com and Myspace.com. 'The kids don't care,' [he] said, 'because only old people like you and me suffer from the illusion of privacy these days.'"

DVD Jon's DoubleTwist Unlocks the iPod 377

An anonymous reader writes, "On the 5-year anniversary of the iPod, Fortune Magazine has an article called Unlocking the iPod about Jon Lech Johansen's new venture. Slashdot briefly covered DoubleTwist earlier this month, and those of you who complained that he was not enabling iPod competitors to play FairPlay files will be happy to learn that according to the Fortune article he will also be going after the hardware market." From the article: "As [Johansen] and Farantzos explain DoubleTwist in a conference room they share with several other companies, he points to a sheet of printer paper tacked on the wall that has a typed quote Jobs gave the Wall Street Journal in 2002: 'If you legally acquire music, you need to have the right to manage it on all other devices that you own.' As Johansen sees it, Jobs didn't follow through on this promise, so it's up to him to fix the system... Johansen has written [two] programs...: one that would let other companies sell copy-protected songs that play on the iPod, and another that would let other devices play iTunes songs."

Top 10 Web 2.0 Attack Vectors 64

Fred writes, "HNS is running a story about Web 2.0 and the new attack vectors it opens up. Worms of the Yamanner, Samy, and Spaceflash types are exploiting client-side AJAX frameworks, providing new avenues of attack and compromising confidential information. On the server side, XML-based Web services are providing distributed application access through Web services interfaces and opening up new vulnerabilities in the process." The article is spread over 6 short pages and there is no printer-friendly URL.

Ubuntu Linux for Non-Geeks 245

Ravi writes "It is a fact that GNU/Linux has grown from a hackers operating system to be a viable alternative to any commercial proprietary operating system. And the plethora of books on Linux that are being published underlines the popularity of this OS. There are hundreds of flavors of Linux distributions — some of them more popular than the others. Ubuntu Linux is one such distribution which has caught the fancy of many Linux enthusiasts and which enjoys the number one position in the popularity rating chart." Read the rest of Ravi's review.

Tales from a BBS Junkie 267

Jason Scott writes "As someone who is bathed in Bulletin Board System (BBS) history nearly every waking hour, I can sometimes feel like I'm the only one going completely out of his way to find narratives. It's easy enough to copy together a bunch of floppy disks or scan a bunch of printouts but that's not really the glue of what put the online world together and why it still holds a strong meaning for people who were there. As a result, I'm always seeking out people to tell their stories from a personal perspective, or at least take a good shot at putting together the human side of the whole BBS era for the sake of those who missed it. If I'm lucky, I stumble upon a few sites where people do a great job of cobbling together what they didn't throw out from their teenage years. I might even find an extended story out on a website, spanning multiple pages." Read the rest of Jason's review.

Intel Core 2 Duo Vs. AMD AM2 197

ThinSkin writes, "ExtremeTech has an extensive performance roundup across the entire line of Intel Core 2 Duo and AMD AM2 CPUs, from the cheap to the ultra-high end. Both companies bring five processors to the table, ranging from $152 to $1,075, with the mid-range CPUs boasting the best in price/performance. From the article: 'It's clear that Intel's Core 2 Duo lineup offers superior performance across the product line when compared with AMD's Athlon 64. In some applications, even a lower-cost Core 2 Duo can outperform some of the higher-end Athlon 64s.'" The ExtremeTech article is spread over 10 ad-laden pages. You can read it all on the printer-friendly page, but you'll miss out on the pretty graphs.

Turning Garbage into Gold 127

bart_scriv writes "Entrepreneurs are creating companies that exploit the creative opportunities in other people's junk, sparing the environment in the process. The article looks at green entrepreneurship in general and profiles some specific companies, whose products range from recycled printer cartridges to rubber sidewalks. It also includes a slideshow on the process of making rubber sidewalks. From the article: 'While innovation has always been the entrepreneur's trademark, a growing interest in the green movement is propelling small business owners to create new products and services that also happen to be inventive recycling solutions for the country's vast waste heaps. 'The sustainability and restoring of our environment are providing opportunities in many fields of small business,' says John Stayton, co-founder and director of the Green MBA program at San Francisco's New College of California.'"

Wireless, Gaming Addiction, Spam, and More 45

Of the thousands of comments on yesterday's Slashdot page, gathered below are some of the ones that defined the conversations on the rise of wireless peripherals, the meaning of content-free spam, whether one can be truly addicted to online gaming, and Intel's move to open source some of its graphics adapter drivers. Read on for the Backslash summary.

Affordable Laser Printers? 236

paul.h.burns asks: "I'm looking now for an affordable laser printer. The qualifications are that it must be network-able, under $300, and produce decent graphics. Color is not so important because I have an inkjet that I can use if I need color on any presentations. I've looked at Tom's Hardware, CNET, Pricewatch, and just plain googled around. I've found a few printers that meet one or two of the criteria, but not all three. Also, I've found some that look decent, except user comment's say that toner usage on those models is really high. So, now I'll ask everyone here at Slashdot: Are there any laser printers that you can recommend that would meet all three of my criteria?"

Voting Isn't Easy, Even if Cheating Is 260

The Open Voting Foundation's disclsosure that only one switch need be flipped to allow the machine to boot from an unverified external flash drive instead of the built-in, verified EEPROM drew more than 600 comments; some of the most interesting ones are below, in today's Backslash story summary.

Cancer Therapy with Radioactive Scorpion Venom 115

BostonBTS writes "Researchers from TransMolecular, Inc. have used chlorotoxin -- a component of giant yellow scorpion venom -- to target radioactive treatments for the deadly brain cancer glioma. From the article: 'In the study, 18 patients first had surgery to remove malignant gliomas, a lethal kind of brain tumor. Then doctors injected their brains with a solution of radioactive iodine and TM-601, the synthetic protein. The solution bound almost exclusively to leftover tumor cells, suggesting that it could be combined with chemotherapy to fight cancer. Furthermore, two study patients were still alive nearly three years after the treatment.' Their paper is slated for publication in the August issue of the Journal of Clinical Oncology."

ComputerWorld's Help Form Elicits Some Laughs 85

PetManimal writes "Like many websites, Computerworld has a 'help' Web form for users to submit website-related questions. The page asks people not to ask about general Web problems, or other issues not related to Computerworld, but that hasn't stopped a regular stream of funny submissions, ranging from a question about using a computer to watch soap operas, to questions about troubleshooting printer problems."

Ripeness Sticker Coming to Supermarket Fruit 321

Adam Weiss writes "A biosystems engineering professor has just announced a "ripeness sticker" for fruit. According to this AP article, grocers throw out thousands of bushels of fruit a year because it ripens too fast (1 bushel is about 9 U.S. gallons). Mark Riley's RediRipe stickers turn from white to blue as fruit ripens. The stickers react with ethylene gas, a chemical which is released as fruit or vegetables ripen. However the article says "there are still bugs to be worked out: The stickers do not change color to reflect an overripe or rotten piece of fruit. Also, not all fruit produces enough ethylene to be detected by the sticker.""

Beginning GIMP 466

Ravi writes "Any one who has had the opportunity to manipulate images would be aware of Adobe's Photoshop - considered to be the market leader in image manipulation software. But with its high price tag, buying Photoshop is akin to putting strain on your bank balance. What is interesting is that there is a very popular free alternative to Photoshop in GIMP. For those in the dark, GIMP is a state of the art image manipulation software which runs on multiple architectures and OSes and which is released under the GNU free License (GPL). I have been using GIMP exclusively for touching up images for many years now and it has met all my graphics manipulation needs." Read the rest of Ravi's review

Håkon Responds to Questions About CSS and... 204

You submitted questions for Håkon Wium Lie on June 20. Today we have his answers, not only to the (+5 moderated) questions we sent him, but to a bunch of others he thought would also be interesting to answer.

Ubuntu Hacks 138

Ravi writes "I recently got hold of a very nice book on Ubuntu called Ubuntu Hacks co-authored by three authors - Kyle Rankin, Jonathan Oxer and Bill Childers. This is the latest of the hack series of books published by O'Reilly. They have made available a rough cut version of the book online ahead of schedule which was how I got hold of the book but as of now you can also buy the book in print. Put in a nutshell, this book is a collection of around 100 tips and tricks which the authors choose to call hacks, which explain how to accomplish various tasks in Ubuntu Linux. The so called hacks range from down right ordinary to the other end of the spectrum of doing specialised things." Read on for the rest of Ravi's review.

Linux Annoyances For Geeks 445

Taran Rampersad writes "Every now and then, someone comes up with a fun title. 'Linux Annoyances for Geeks' is a definitely fun - and accurate - title for this book. While some people have been fiddling with Linux since it first came out, the majority of Linux users haven't been. I started using Linux in the late 90s, and my work schedule didn't allow me to go to meetings, or track down people who knew things. And the first time you do an install on a machine, you may be disconnected from the very information that gets you connected. Been there, done that. So this book attracted me because despite being an advocate of Free Software and Open Source, there are times when I still type very naughty things on the command line. Read the rest of Taran's review.

HP is Tech's New Top Dog? 192

bart_scriv writes "BusinessWeek argues that HP is the new Big Blue: 'Now, tech is about to get a new biggest behemoth. It's HP. The Palo Alto, Calif., PC and printer giant had higher sales than IBM last quarter, and analysts project it will finish 2006 with greater annual sales than Big Blue for the first time ever: $91 billion for HP vs. $90.5 billion for IBM. The reason HP pulled ahead is simple: IBM last year sold off its $11 billion PC business to Lenovo Group Ltd. But, because the companies have chosen fundamentally different paths, with HP aggressively going after consumers while IBM focuses on corporations, HP is expected to grow faster than IBM in coming years. Since both use blue in their logos, you might say there's a new Big Blue in the house.'"

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