cogno64 writes "Certain stimuli in the brain, such as the smell of freshly based cookies, lead to higher levels of dopamine that remain after the stimulus is removed, leading to altered behavior through interaction with learning, memory, and executive function. The experiencer is more likely to make a purchase decision based on their heightened dopamine levels, with significant impact for internet marketers. According to research presented at the Society for Neuroscience Annual Meeting today, the neurotransmitter dopamine continues to be released for nearly an hour after neurons are stimulated, suggesting the existence of secondary mechanisms that allow for sustained availability of dopamine in different regions of the brain including areas critical for memory consolidation, drug induced plasticity and maintaining active networks during working memory. Dopamine is a neurotransmitter associated with learning and memory, motor control, reward perception and executive functions such as working memory, behavioral flexibility and decision making. When a novel or salient stimulus occurs, the dopamine neurons in the brain increase their firing rate, boosting the release of dopamine. The dopamine is diffused into the extracellular space of the brain until it can be transported or metabolized."

jkwdoc writes "In one of the few mass interviews ever conducted, the crew at HardOCP.com talked to seven different OEM presidents and founders to ask them about the PC industry. The names include Michael Dell, Kelt Reeves (Falcon Northwest), Randy Copeland (Velocity Micro), and Albert Wang (ABS/Newegg), among others. The questions ranged from their business principles, to the effect of the enthusiast and gaming markets, to what dual- and quad-core technology means for the next generation of computing. You'll be surprised at some of the answers." Of course, the article has to span nine pages because they have to show their ads over...and over...and over.

News for nerds writes "Yellow Dog Linux v5.0 is slated for release mid-November with support for the Sony PS3 first, and support for the former Apple PowerPC product line to follow. Any updates required to support the Apple PowerPC systems following the release for PS3 will be made available via a free download."

mysterystevenson writes "After bringing more mass than ever before up to the ISS, one of the gyros has failed. Gyros help maintain attitude position in space; the more mass needed to be controlled, the more force that is exerted on the gyros. Now there is the danger that the Shuttle may be bringing yet more mass and starting construction while turning off another gyro, which could cause a need for thrusters to maintain attitude. The assemblies are not all constructed to be able to withstand such force and in a bad situation there could be a collapse which could affect the Shuttle and the ISS as well. Worse case could be total loss; a wise idea might be to alter the construction schedule and address the Gyro and Gyro design problems, before going forward with the introduction of more mass."

twofish writes "In an interview at Newsweek marking the approaching 5th anniversary of the launch of the iPod, Apple CEO Steve Jobs seems unconcerned by Microsoft's wannabe iPod killer Zune. Earphone sharing will prove a more potent force for social networking than the iPod rival's wireless song-sharing feature, he reckons. 'I've seen the demonstrations on the internet about how you can find another person using a Zune and give them a song they can play three times. It takes forever,' he says in the article. 'By the time you've gone through all that, the girl's got up and left! You're much better off to take one of your earbuds out and put it in her ear. Then you're connected with about two feet of headphone cable.'"

Steve Kerrison writes "Despite a woeful inability to provide some of its most loyal customers with stock, and a range of CPUs that, currently, loses out to Intel's Core 2 processors in both price and performance (and who would I be not to mention the diminishing AMD fanboy numbers?), AMD's still got enough tricks up its sleeve to retaliate against Intel in due course. HEXUS.net has an opinion piece on why AMD isn't up the creek. From the article: AMD has been showing off its 65nm wafers for a few months now, which means the Rev G core is on its way. Even if the DDR2 memory controller which arrived with the Rev F only had a small performance benefit, Rev G has a few more improvements than just the die shrink. The latter will enable higher clock speeds and a lower price, plus allow AMD to compete on an equal playing field to Intel, which has been manufacturing 65nm processors since the Pentium XE 955 at the end of 2005."

theodp writes, "To promote an Internet radio service Sirius is launching this week, Howard Stern's 4+ hour program will be made available live online for free on October 25 and 26. The new Sirius service will offer 75+ channels of CD-quality programming for $12.95/month with no need to buy a Sirius satellite receiver."

Rub3X writes, "The legal battle between antispam organization Spamhaus and e360 Insight is heating up. Spamhaus has a user base of around 650 million, and its lists block some fifty billion spam emails per day, according to the project's CEO Steve Linford. Spamhaus CIO Richard Cox says the immediate issue is that if the domain is suspended, the torrent of bulk mail hitting the world's mail servers would cause many of them to fail. More than 90% of of all email is now spam, Cox says, and he doubts that servers worldwide would be able to handle a ten-fold increase in traffic." Others estimate Spamhaus's blocking efficacy as closer to 75%; by this metric spam would increase four-fold, not ten-fold, if Spamhaus went unavailable. The article paraphrases CIO Cox as saying that the service will continue "even if there is a short-term degradation."

eldavojohn writes, "Webaroo has added Wikipedia to their services on mobile devices. There have also been open source efforts to deliver it to the iPod (also check out the wiki) or a PDA. I guess if I were still a bartender, this would be a necessity in solving bar disputes before they escalate to fisticuffs." Wikipedia requires 6 GB of free space, 10 GB recommended. And remember: Don't Panic.

Jamie Clay points out a New York Times article about one sticky wicket faced by members of the Tripoli Rocketry Association, whose members are some of the private citizens trying to bust into the space-launch business (or just having fun) by financing and building their own rockets. An excerpt: "On Tuesday, lawyers representing Tripoli and the National Association of Rocketry and officials of the firearms bureau will head to Federal District Court in Washington to resolve the seven-year-old dispute over the hobbyists' use of a flammable propellant, ammonium perchlorate composite, or APCP. The chemical is the main ingredient on the space shuttle's solid rocket boosters. ... The firearms bureau classifies APCP as an explosive and, amid post-Sept. 11 security concerns, requires that anyone who uses more than two ounces of propellant undergo federal background checks."

Chris Brunner writes "Over the last several months, I've done my best to seek out every podcast related to computer security concepts, exploit news, hacking, phreaking, or anything else security-related. I started with a list of just under fifty podcasts and gradually eliminated the ones that failed to offer interesting content. What's left is a list of podcasts that are worth your time."

ThinkComp writes "A few weeks ago I wrote an open letter to my former friend from school, Facebook founder Mark Zuckerberg, telling him to take Yahoo's money before it's too late. It was meant partly as a joke, and partly as a way to set the record straight on his company's origins, since in financial terms he'll be fine no matter what happens. Now the New York Times has written a story on Friendster, the social network no one talks about anymore. It seems that while history repeats itself every few decades in the global scheme of things, the period of recurrence in Silicon Valley is quite a bit shorter. The moral here: take the billion dollars while you still can."

eldavojohn writes "Scientists have been busy in Ottawa using lasers to manipulate chemical reactions. While this may not seem like an impressive feat, the implications this has for quantum mechanics is quite large. From the article, "According to Albert Stolow, the NRC team leader, the tool used to alter molecular landscapes has implications beyond the control of chemical reactions. One example already mentioned is in the area of quantum information either to directly encode molecular scale information or to control molecular scale switches. Another application is in developing novel forms of optical microscopy of live cells, where quantum control methods can be used to sharpen images, enhance sensitivity and perhaps even perform molecular scale surgery on individual cells. The electric interaction underlying the NRC technique is an essential tool on the quantum mechanic's workbench. Its application to science and technology could reach deep into the quantum world of the ultrasmall." The article in science was where I caught this initially though it doesn't seem to be free anywhere online. The final words of the summary are "suggesting broad applicability" but only time will tell how far our imaginations will use this research."

Roland Piquepaille writes "In 'A Floating Chernobyl?,' Popular Science reports that two Russian companies plan to build the world's first floating nuclear power plant to deliver cheap electricity to northern territories. The construction should start next year for a deployment in 2010. The huge barge will be home for two 60-megawatt nuclear reactors which will work until 2050... if everything works fine. It looks like a frightening idea, don't you think? But read more for additional details and pictures of this floating nuclear power plant."

Xemu writes "French scientists have linked obesity to lower IQ reports the Telegraph. In a new five-year study of more than 2,200 adults, people with a low body mass index (BMI) could recall 30% more words in a vocabulary test than those who were obese. The fatter subjects also showed a higher rate of cognitive decline when they were retested five years later. In the United States, 30% of the population is obese according to OECD. That's the highest rate of obesity anywhere. Do these high obesity rates affect the average IQ of the population?" (Of course, this sidesteps discussion of whether IQ tests measure anything significant at all.)