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Bioscientists photoshop their cultures to fake results

May 31st, 2008 by Mylo

Jeff sez, “Researchers often use Photoshop to clean up the images they produce in the laboratory. If the experiment didn’t go quite right, a bit of tampering can make a gel look like things did work. Editors at Science, Nature, and other journals are turning into detectives, using new tools to hunt for fraudulent images.”

And the level of tampering they find is alarming. “The magnitude of the fraud is phenomenal,” says Hany Farid, a computer-science professor at Dartmouth College who has been working with journal editors to help them detect image manipulation. Doctored images are troubling because they can mislead scientists and even derail a search for the causes and cures of disease.

Ten to 20 of the articles accepted by The Journal of Clinical Investigation each year show some evidence of tampering, and about five to 10 of those papers warrant a thorough investigation, says Ms. Neill. (The journal publishes about 300 to 350 articles per year.)

Scientists heat matter to hotter than surface of the Sun

May 31st, 2008 by Mylo

The milestone in the field of high energy density physics has been reached by an international team from Japan, the EU and the US working at the Rutherford Appleton Laboratory

Previously only ultra-thin layers of matter (less than one hundredth of a millimetre in thickness) had been heated to similar temperatures and this milestone, where 20 times greater volumes have been heated, takes scientists one step closer to laser fusion, the process that powers the Sun.

The Vulcan laser concentrated power equivalent to 100 times the world’s electricity production into a tiny spot for a fraction of a second as part of an effort that will also help scientists to explore many astronomical phenomena in miniature, such as mini-supernovas and tabletop stars. Read the rest of this entry »

Apple Releases Mac OS X 10.5.3

May 28th, 2008 by Mylo

Apple released the Mac OS X 10.5.3 update today. The latest update to Leopard should appear in your Mac OS X Software Update.

The 10.5.3 Update is recommended for all users running Mac OS X Leopard and includes general operating system fixes that enhance the stability, compatibility and security of your Mac.

For detailed information on this update, please visit this website: http://support.apple.com/kb/HT1141.
For detailed information on security updates, please visit this website: http://support.apple.com/kb/HT1222.

Apple details the many fixes in their support document. Some highlights include:

- Includes additional RAW image support for several cameras
- Addresses an issue with stuttering video and audio playback in certain USB devices
- Improves 802.1X (Wifi) behavior and reliability and when using Time Machine
- Includes fixes for Time Machine compatibility with Time Capsule

Google posts that the Address Book application in Mac OS X 10.5.3 now lets iPhone users sync their Address Book with Google Contacts.

Ghost toddler from ancient Egypt on show as art

May 24th, 2008 by Mylo

mommyThe ghost of an Ancient Egyptian toddler now haunts a London gallery, after scans of his mummy were fashioned into a work of art.

Artist Angela Palmer has already turned Carol Vorderman’s brain, and even her own, into eerie artistic representations, formed from layers of glass that have been engraved with contours based on scans of their brains.

Now she has used the same method to bring the remains of the toddler into view and shed new light on a family tragedy that took place almost two thousand years ago in Egypt.

Her reconstruction of “Mummy Boy 3″ is now on display at Waterhouse & Dodd in the West End of London, until June 12.

She had originally wanted to scan the head of the boy king Tutenkhamum, but was told that request was out of the question.

However, the Ashmolean Museum in Oxford allowed her unprecedented access to the mummy to shed new light on the toddler’s death in Roman times.

“It is an exquisite mummy,” says Ms Palmer. Working with Dr Helen Whitehouse of The Ashmolean Museum, Oxford, 2500 images of the little mummy were taken with an CT X ray scanner in the John Radcliffe Hospital, Oxford, to create the stacked glass sculpture.

“As you move around it, the mummy disappears from view, in an ethereal effect,” she says.

As a bonus, the effort has revealed to archaeologists new details of the mummy. The remains were of an 18 month old and it was a boy, as shown by his mummified penis.

Unusually, he lacked his baby side teeth. His brain had also been removed, in common with standard funerary practices of the day.

The scans show that the elaborate bandages that wrap the remains, forming an elaborate lozenge pattern, are typical of the approach used in AD 80-120.

The presence of gold studs of gilded plaster, bound near his lap, suggest that the little boy was the son of a noble or an official.

Exhibited alongside the resulting see through sculpture, built up from glass engraved with the scans, are the mummy itself, along with films and photographs taken by the artist of local boys from the village of Hawara, south west of Cairo.

It was there that the mummy was found in 1888 by the British archaeologist W. M. F. Petrie, while excavating around the royal pyramid of Pharaoh Amenemhet III (1818–1770 BC).

Poignant relics from a 100 acre cemetery there, from toys to tiny shoes and clothes, testify to how around quarter of children at that time did not survive beyond their first year, comments Dr Whitehouse, adding that diseases, insects, malaria and parasitic worms were prevalent until the 20th century.

The precise cause of death are not clear, though the child had a problem with his right hip, and had an inflamed lung, consistent with pneumonia.

Expanding Supernova Marks Youngest Yet - And There May Be 10 Even Younger

May 18th, 2008 by Mylo

NASA held a press conference today to announce the discovery of a discovery of the most recent supernova in our galaxy. The discovery was made by tracking the rapid expansion of its remains.

The supernova explosion occurred about 140 years ago, making it the most recent supernova in the Milky Way as measured in Earth’s time frame. Previously, the last known galactic supernova occurred around 1680, based on studying the expansion of its remnant Cassiopeia A.

The tracking of this source began in 1985 when astronomers, led by David Green of the University of Cambridge, used the VLA to identify G1.9+0.3 as the remnant of a supernova explosion near the center of our galaxy. Based on its small size, it was thought to have resulted from a supernova that exploded about 400 to 1000 years ago.

Jupiter’s Three Red Spots

April 14th, 2008 by Mylo

jupiterFor about 300 years Jupiter’s banded atmosphere has shown a remarkable feature to telescopic viewers, a large swirling storm system known as The Great Red Spot. In 2006, another red storm system appeared, actually seen to form as smaller whitish oval-shaped storms merged and then developed the curious reddish hue. Now, Jupiter has a third red spot, again produced from a smaller whitish storm. All three are seen in this image made from data recorded on May 9 and 10 with the Hubble Space Telescope’s Wide Field and Planetary Camera 2. The spots extend above the surrounding clouds and their red color may be due to deeper material dredged up by the storms and exposed to ultraviolet light, but the exact chemical process is still unknown. For scale, the Great Red Spot has almost twice the diameter of planet Earth, making both new spots less than one Earth-diameter across. The newest red spot is on the far left (west), along the same band of clouds as the Great Red Spot and is drifting toward it. If the motion continues, the new spot will encounter the much larger storm system in August. Jupiter’s recent outbreak of red spots is likely related to large scale climate change as the gas giant planet is getting warmer near the equator

Microsoft shows off “snippet” of Windows 7 at D6, reveals multi-touch support

March 24th, 2008 by Mylo

p1000159.jpgBill Gates and Steve Ballmer got on stage at D6 with Walt and Kara to talk… Microsoft, of course. While the company is still being rather coy about Windows 7 — some have blamed loose lips early on in Vista development for saddling the OS with too high of expectations and making things difficult for developers — they were nice enough to show off what Ballmer called “the smallest snippet” of Windows 7. The big reveal was multi-touch support, which utilizes technology developed by the Surface team. The taskbar seems to have been reworked a bit, and the demo was running live on a Dell Latitude XT tablet. Apparently Microsoft is reworking the whole user interface with a multitouch experience in mind. Steve reiterated the “three years after Vista” mantra for availability. Not exactly earth-shattering, but we’ll take what we can get at this point.

The brains of dead Russian geniuses:

March 20th, 2008 by Mylo

What makes a man a genius? Russian neuroscientists were pondering this exactly this question in the early 1900s and did exactly what seemed sensible at the time - they collected and dissected the brains of some of the greatest cultural figures in a huge collection called ‘The Pantheon of Brains’.

It’s a fascinating story told in a recent article published in the medical journal Brain. Amazingly, the last brain was only added in 1989.

Rather fittingly, the collection contains the brains of some of the Russia’s greatest psychologists and neuroscientists and has many curious aspects to it, such as the mysterious death of its founder. After death, his brain was immediately added to the collection.

In 1927, Bekhterev came up with a plan to organize ‘The Pantheon of Brains’ in Leningrad in order to collect elite brains. It was a severe irony of fate that precisely when the question about creating the Pantheon had been positively solved, the very initiator of this creation, Bekhterev, suddenly passed away. The circumstances are still questionable.On December 17, 1927, the First All-Union Congress of Neuropathologists and Psychiatrists was held in Moscow. Bekhterev, along with L. S. Minor and G. I. Rossolimo, was elected as honourable chairmen of the congress. On December 23rd, the last day of the congress, Bekhterev gave a presentation during the afternoon session. In the evening, symptoms of a gastrointestinal disorder started and 24 hs later, Bekhterev died of (as officially stated) acute heart failure. Without any further post-mortem pathoanatomical investigation, his brain was removed, in accordance with his will, and his body was cremated the next day. However, the idea did not fade away.

In 1928, the neuroanatomical laboratory of Vogt and his Russian colleagues were reorganized into the Moscow Brain Research Institute, where the structured collecting and mapping of the brains of famous Russians started. Bekhterev did not see his plan come to fruition, but his own brain enriched the collection of the Moscow Institute (the weight of his brain was 1720g). The collection acquired the brains of Soviet politicians, famous writers, poets, musicians, etc. Read the rest of this entry »

Study Links Genetic Footprint Of Embryonic Stem Cells To Cancer Cells

March 5th, 2008 by Mylo

A new study suggests that a genetic fingerprint associated with normal embryonic stem cells may be important for the development and function of cancer stem cells. The research in Cell Stem Cell demonstrates that embryonic stem cells and multiple types of human cancer cells share a genetic expression pattern that is repressed in normal differentiated cells, a finding that may have significant clinical implications for cancer therapeutics.

“Self-renewal is a hallmark of stem cells and cancer, but existence of a shared stemness program remains controversial,” explains study co-author, Dr. Howard Y. Chang from Stanford University. Dr. Chang, Dr. Eran Segal from the Weizmann Institute in Israel and their colleagues constructed a gene module map to systematically relate transcriptional programs in embryonic stem cells (ESCs), adult tissue stem cells and human cancers.

The researchers identified two predominant gene modules that distinguish ESCs and adult tissue stem cells. “Importantly, the ESC-like transcriptional program was activated in diverse human epithelial cancers and strongly predicted metastasis and death,” says Dr. Segal. Conversely, the adult tissue stem gene module had an opposite pattern, activated in normal tissues relative to cancer and repressed in various human cancers when compared to normal tissues. Read the rest of this entry »

4 Most Harmful Ingredients in Packaged Foods

February 20th, 2008 by Mylo

Recipe for Disaster

Ninety percent of Americans’ household food budget is spent on processed foods, the majority of which are filled with additives and stripped of nutrients. Discover which common ingredients in the foods you eat pose the greatest risk to your health.

Grab the broccoli with cheese sauce from the freezer, the box of instant rice pilaf from the pantry, or the hot dogs from your fridge and squint at the ingredient list’s fine print. You’ll likely find food additives in every one.

Is this healthy? Compared to the foods our bodies were built to eat, definitely not.

Processed, packaged foods have almost completely taken over the diet of Americans. In fact, nearly 90 percent of our household food budget is spent on processed foods, according to industry estimates. Read the rest of this entry »

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