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Tiny dinosaur

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Tiny dinosaur:
  • US and British researchers said: a rare juvenile skull of a 190 million year old dinosaur may help explain when an important group of plant eaters branched off from carnivorous cousins. The tiny skull belonged to a young Heterodontosaurus.

  • The scientists said: Its tooth structure sharp canine teeth for biting and tearing and flat grinding teeth suggest the tiny creature was evolving from a meat eater to a plant eater.

  • "This juvenile skull indicates that these dinosaurs were still in the midst of that transition," said Laura Porro. Porro came across the skull in a drawer in the Iziko South African Museum in Cape Town, South Africa, while researching the eating habits of adults of this type of dinosaur. Porro said paleontologists had thought the canines were sexually dimorphic a trait present only in adults of one gender in a species like antlers in male deer.
    But the presence of long, serrated canines in the juvenile suggest they were common to both genders, Porro said.

    "They almost look like little saber toothed tiger teeth." The first dinosaurs appeared about 230 million years ago, and the earliest known ones were meat eaters. There were other plant-eating dinosaurs at the time of Heterodontosaurus. Later ornithischians included the duck billed dinosaurs, horned dinosaurs such as Triceratops and tank-like dinosaurs such as Ankylosaurus.

    While adult Heterodontosaurus were turkey-sized creatures that reached just over three feet (1 meter) in length and weighed about 5 pounds (2.5 kg), the juvenile likely weighed less than half a pound (200 grams) and would have been just about a foot and a half long.

The find also offers a rare chance to compare a young dinosaur to adults in the species. Porro said the eyes in the juvenile skull are much bigger, and the nose is much shorter.

White adults: overweight

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White adults: overweight

In a new study certain white adults are more likely to be obese than their peers who haven't perceived personal discrimination. The study reported that perceived unfair treatment was associated with increased abdominal girth. Weight was not, however, clearly related to feelings of discrimination among black and Hispanic adults. For the study, researchers analyzed data on 3,025 adults who had taken part in a Chicago area health study. Participants were weighed and interviewed about their health habits and demographics. They were also asked about perceived discrimination including how often they believed they'd been treated disrespectfully, received poorer service than other people or felt threatened or harassed. Overall, the researchers found, one quarter of study participants said they'd been discriminated against based on race or ethnicity, while 40% believed they'd been treated unfairly based on other reasons.


White ethnic groups "have historically been discriminated against," the researchers point out. They may experience higher levels of perceived discrimination than do other Whites, and this experience "may adversely affect their health."

In contrast, there was no clear evidence that weight was related to perceived bias among black and Hispanic adults.

Link exchange

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Cancer drugs' success

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Cancer drugs' success ::

Scientists discovered a new gene mutation that determines to the bowel cancer drugs Erbitux and Vectibix. Experts already knew that Erbitux, developed by ImClone and sold by Bristol Myers Squibb and Merck KGaA, and Vectibix, from Amgen, only work in tumors containing the normal, or wild-type, version of a gene known as KRAS. Now a second gene, called BRAF, has also been shown to be involved, though to a lesser extent.
KRAS
mutations explain about 30-40% of cases in which patients fail to respond to Erbitux and Vectibix but results of a study presented by Federica Di Nicolantonio of the University of Turin School of Medicine in Italy suggest that BRAF mutations may account for another 12%.

Experts have argued about the market impact of using genetic markers as way to pre-select patients for treatment with costly modern cancer drugs.

Da Vinci's sketches

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Da Vinci's sketches:

Da Vinci's intricate drawings transformed understanding of the human heart, a new computer model.The model has the same asymmetrical rhythm and does a real heart in the human body is the work of 3 British doctors who say the creation will improve both training and care during surgery.

The three-dimensional model easily manipulate make the cyber heart unique, said Sue Wright, an anesthesiologist at the Heart Hospital in London. "We can slice it, spin it around and look at it from any angle. We have reproduced the timing of the human heart beat to within 20 milliseconds".

The Italian master's drawings showed the heart was a muscle with 4 chambers, he noted. They also suggested that arteries could clog up over a lifetime, posing a risk to health. "At the time, da Vinci's sketches open a new understanding of cardiac structure," said Anderson, also a visiting professor at the Medical University of South Carolina.

The 3 doctors say they designed their virtual heart because they felt current 2 dimensional models were not accurate enough. These limitations make it harder to perform a complicated ultrasound scan of the heart that entails guiding a probe down through the throat to the stomach.

They also analyzed hundreds of previous models and enlisted a company known for its work on films to provide the technical know-how to translate the data."We based a lot of the model on surgical data and surgeons who have had their hands in the chest," Wright said.

Speedy eaters

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Speedy eaters seen likelier to get fat

Japanese researchers said people who eat quickly and 3 times are more likely to be overweight. Eating styles and overeating unlikely unbalance time will cause a serious affect in human health and mind. The World Health Organization classifies around 400 million people as obese, 20 million of them under the age of five. The condition raises the risk of diseases like type 2 diabetes and heart problems.

  • For their study about half of the men and a little more than half of the women said they ate until full. About 45 % of the men and 36 percent of the women said they ate quickly. Those who said they ate until full and ate quickly were 3 times more likely to be fat than people in the "not eating until full and not eating quickly" group, the researchers found. They cited as causes both the availability of cheap food in big portions and habits like watching television while eating.

    To counteract the "supra-additive effect" of speedy or glut eating among children prone to obesity, parents should encourage them to eat slowly.

Eating males pays off, for spiders

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Eating males pays off, for spiders


  • In a research its found that Female spiders who eat would be suitors produce more babies, and those babies are stronger and bigger, than spiders who stick to more mundane fare and the merciless mother spiders waited until they had mated with another ensuring they would hatch spiderlings before consuming their new beaux.

  • They researcher said the first "natural" experiment to prove correct the old folklore about spiders, and said it also shows why such behavior might be beneficial. "Now we know that, at least in one species, sexual cannibalism benefiting females occurs in nature," Dr. Jordi Moya-Larano of the Estacion Experimental de Zonas Aridas in Spain, who led the study, said in a statement.

    Some of other studies have suggested that males sacrifice themselves for the sake of their offspring, but this study showed that, at least in this species of spider, the males are purely unlucky victims and only the babies benefit.

  • So the researchers set up a field experiment in which they watched the spiders, sometimes snatching the males from the jaws of females before they were devoured.

  • "At natural rates of encounter with males, approximately a third of L. tarantula females cannibalized the male," they wrote in their report, published in the Public Library of Science journal PLoS ONE. "The rate of sexual cannibalism increased with male availability, and females were more likely to kill and consume an approaching male if they had previously mated with another male," they added.

  • "We show that females benefit from feeding on a male by breeding earlier, producing 30 percent more offspring per egg sac, and producing progeny of higher body condition. Offspring of sexually cannibalistic females dispersed earlier and were larger later in the season than spiderlings of non-cannibalistic females." One theory had also held that females who ate males were simply more aggressive and perhaps better hunters but when the males were saved just in time, those females did not produce superior broods, suggesting that the male meals were an important source of nutrition.

Google keeps talking on Yahoo deal

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Google keeps talking on Yahoo deal

Google agreed to keep talking with the U.S. Justice Department about its proposed online advertising deal with Yahoo. In this deal Yahoo would turn over some of its online advertising space for Google to sell.

The advertising deal is unpopular with some advertisers because Google and Yahoo dominate the U.S. Web search market.Google's market share widened to 63% in August, while Yahoo's dropped to 19.6% and Microsoft Corp's slipped to 8.3 %, according to com Score Inc.

The deal to share advertising has been widely seen as an effort to help Yahoo, Microsoft by bringing Yahoo an additional $800 million in annual revenue.

Software download

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Middle-aged women drive rise in US suicides

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Middle-aged women drive rise in US suicides

US suicide rates appear to be on the rise, driven mostly by middle-aged white women. it was found that disturbing increase in suicides between 1999 and 2005 and said the pattern had changed in an unmistakable way. The overall suicide rate rose 0.7 % during this time, but the rate for white men aged 40 to 64 rose 2.7 percent and for middle-aged women 3.9 percent, the team at Johns Hopkins University in Baltimore found.

The biggest increase that we have seen between 1999 and 2005 was the increase in poisoning suicide in women that went up by 57 percent. "Historically, suicide-prevention programs have focused on groups considered to be at highest risk -- teens and young adults of both genders as well as elderly white men. "

The middle-aged women and men used various techniqe to kill themselves such as poisons, drugs, hanging and firearms. While firearms remain the most common method, the rate of gun suicides decreased while suicide by hanging or suffocation increased by 6.3 percent among men, and 2.3 percent among women.

In September researchers confirmed an 18%spike in youth suicides in the United States in 2004 persisted into 2005 after more than a decade of decreases and international research published in January found that the young, single, female, poorly educated and mentally ill are all at higher risk of suicide. According to the World Health Organization, suicide rates have increased by 60 percent in the last 45 years. Depression is the leading cause of suicide.

Asustek targets 77%

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Asustek targets 77 % laptop


  • Taiwan's Asustek Computer looking to increase its notebook output by 77 % in 2009 Asustek Chairman Jonney Shih said he hoped Asustek to become one of the world's top 4 laptop makers.

    Shih, whose company is a pioneer in the increasingly popular class of low-cost notebooks known as netbooks, made his remarks during the launch of a new series of its Eee PC netbook line.Shares in Asustek were up nearly 3% , outpacing a 0.3 % drop in the benchmark index.

    Many of the world's top PC makers, including Dell, Acer and NEC, have entered the netbook market and will either launch or have launched their own line of low-cost notebooks.

EBay to ban sale of ivory products

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EBay to ban sale of ivory products ::::::

EBay ban sale of all types of ivory products after a conservation group investigation found more than 4,000 elephant ivory listings on the online auction site. African and Asian elephants are protected under the US Endangered Species Act and the international Convention on the International Trade in Endangered Species (CITES). "In one instance, a user purchased a pair of elephant tusks off eBay for more than $21,000," IFAW said.Every year, more than 20,000 elephants are illegally slaughtered in Africa and Asia to meet demand for ivory products, according to IFAW.


EBay said it would still allow the sale of some antique items which contain a small amount of ivory, such as a table with a small ivory inlay or an antique piano with ivory keys.

The company said it defines antique as pre-1900 and added that items containing a significant amount of ivory, regardless of age, such as ivory chess sets, broaches and jewelry are not permitted.

Risky use of mobile e-mail devices

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Risky use of mobile e-mail devices

In a survey its shows that people who use mobile there is potential chance to get accident or other any incident causes serious damage in life likewise, A California train engineer once sending and receiving text messages was blamed last month for causing one of the worst railroad crashes in US history that killed 25 people. According to a survey released on Tuesday that showed 77
percent have used such a device while driving a moving car. 41% percent said they have used a mobile e-mail device such as a BlackBerry while skiing or riding a bicycle.

The engineer of a crowded commuter train was text-messaging from his cell phone seconds before his train skipped a red light and collided with a freight train near Los Angeles in September, killing 25 people even Workers use their mobile devices even more in their work ,11% of respondents said they have used such a device during romantic moment, and 79 % said they have used one in the bathroom. 18% have used one during a wedding, 16 % during a funeral or memorial service and 37 %during a graduation.

The online survey was conducted August 4 through August 26, 2008, of 148 US adults. A survey last year by the AAA travel and motorist group found nearly half of US teen-agers sent text messages while driving.

Facebook eyes

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Facebook eyes digital-music business

  • Facebook's founder & Chief Executive Mark Zuckerberg plans to enter in the digital-music arena in the wake of the launch of News Corp's. Zuckerberg is talking to huge number of song with lots different version and music community sites will be added.

    The Post quoted sources saying that unlike MySpace, which traded equity in its music venture in exchange for licences to stream ad supported songs, Facebook doesn't want to secure licences to distribute music, or build a proprietary service from scratch. Sources further cautioned that nothing was imminent, and Facebook may ultimately walk away from the plan altogether the paper reported.

NASA satellite to scan solar system's outer limits

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NASA satellite to scan solar system's outer limits

NASA is going to launch satellite that will study in distant regions where the outermost reaches of our solar system collide with the cold expanse of interstellar space. The solar wind, a stream of electrically conducting gas continuously moving outward from the sun at 1 million mph, blows against this interstellar material and forms a humongous protective bubble around the solar system. These boundaries really protect from the fairly harsh galactic environment.

NASA said IBEX will map the boundary region, which is important because it shields the solar system from dangerous galactic cosmic rays. IBEX is designed to detect atoms that are heated and thrown off from the boundary.

NASA's two unmanned Voyager probes were the first to begin to explore this region, which begins about three times further from the sun than the orbit of the dwarf planet Pluto. Voyager 1 passed the inner boundary in 2004 and Voyager 2 crossed over last year.