http://www.physorg.com/ en-us Physorg.com internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. Imagine the Earth's crust as the planet's skin: Some areas are old and wrinkled while others have a fresher, more youthful sheen, as if they had been regularly lathered with lotion. http://www.physorg.com/news178381626.html Space & Earth Wed, 25 Nov 2009 14:27:50 EST news178381626 (PhysOrg.com) -- Peering through the thick dust clouds of our galaxy's "bulge" (the myriads of stars surrounding its center), a team of astronomers has unveiled an unusual mix of stars in the stellar grouping known as Terzan 5. Never observed anywhere in the bulge before, this peculiar "cocktail" of stars suggests that Terzan 5 is in fact one of the bulge's primordial building blocks, most likely the relic of a dwarf galaxy that merged with the Milky Way during its very early days. http://www.physorg.com/news178377940.html Space & Earth Wed, 25 Nov 2009 13:28:26 EST news178377940 Photosynthetic organisms need to cope with a wide range of light intensities, which can change over timescales of seconds to minutes. Too much light can damage the photosynthetic machinery and cause cell death. Scientists at the Carnegie Institution were part of a team that found that specific proteins in algae can act as a safety valve to dissipate excess absorbed light energy before it can wreak havoc in cells. http://www.physorg.com/news178378035.html Biology Wed, 25 Nov 2009 13:28:05 EST news178378035 When cells are confronted with an invading virus or bacteria or exposed to an irritating chemical, they protect themselves by going off their DNA recipe and inserting the wrong amino acid into new proteins to defend them against damage, scientists have discovered. http://www.physorg.com/news178377237.html Biology Wed, 25 Nov 2009 13:14:44 EST news178377237 Bacteria don't have easy lives. In addition to mammalian immune systems that besiege the bugs, they have natural enemies called bacteriophages, viruses that kill half the bacteria on Earth every two days. http://www.physorg.com/news178375259.html Biology Wed, 25 Nov 2009 12:42:43 EST news178375259 Breathing carbon dioxide can trigger panic attacks, but the biological reason for this effect has not been understood. A new study by University of Iowa researchers shows that carbon dioxide increases brain acidity, which in turn activates a brain protein that plays an important role in fear and anxiety behavior. http://www.physorg.com/news178374999.html Medicine & Health Wed, 25 Nov 2009 12:37:43 EST news178374999 (PhysOrg.com) -- You wouldn't want a car with no brakes. It turns out that the developing brain needs them, too. http://www.physorg.com/news178374711.html Medicine & Health Wed, 25 Nov 2009 12:35:23 EST news178374711 New research at the University of Leicester has identified scores of Sicilian temples built to face the rising Sun, shedding light on the practices of the Ancient Greeks. http://www.physorg.com/news178370030.html Other Sciences Wed, 25 Nov 2009 11:20:48 EST news178370030 When you eat may be just as vital to your health as what you eat, found researchers at the Salk Institute for Biological Studies. Their experiments in mice revealed that the daily waxing and waning of thousands of genes in the liver -- the body's metabolic clearinghouse -- is mostly controlled by food intake and not by the body's circadian clock as conventional wisdom had it. http://www.physorg.com/news178369757.html Medicine & Health Wed, 25 Nov 2009 11:09:50 EST news178369757 (PhysOrg.com) -- Several research security firms have reported a new worm attack against jail broken iPhones, dubbed "Ikee.B or "Duh", this worm searches for personal and banking information. http://www.physorg.com/news178368713.html Electronics Wed, 25 Nov 2009 10:52:39 EST news178368713 (PhysOrg.com) -- Research into Alzheimer's disease seems an unlikely approach to yield a better way to fight urinary tract infections (UTIs), but that's what scientists at Washington University School of Medicine in St. Louis and elsewhere recently reported. http://www.physorg.com/news178359416.html Chemistry Wed, 25 Nov 2009 09:20:01 EST news178359416 (PhysOrg.com) -- A new study of adults aged 70 or older found that increased servings of fruits and vegetables were significantly associated with a decrease of cognitive impairment, and that those eating three or more servings of vegetables per day had a 30 percent lower risk of death from heart disease. http://www.physorg.com/news178358737.html Medicine & Health Wed, 25 Nov 2009 08:50:02 EST news178358737 (PhysOrg.com) -- A British team hoping to be the first to get a car to 1,000 mph (1,610 km/h) has made its final design selection. The six-tonne car, known as the Bloodhound, will be powered by a Eurofighter jet engine mounted above a hybrid rocket, and will be built in Bristol, UK. http://www.physorg.com/news178355487.html Technology Wed, 25 Nov 2009 08:50:01 EST news178355487 (PhysOrg.com) -- The scientists anticipate their "LithoParticles" will have significant applications in photonics, optical communications and other areas. http://www.physorg.com/news178358457.html Chemistry Wed, 25 Nov 2009 08:40:01 EST news178358457 (PhysOrg.com) -- The team operating NASA's Mars Reconnaissance Orbiter plans to uplink protective files to the spacecraft next week as one step toward resuming the orbiter's research and relay activities. http://www.physorg.com/news178359134.html Space & Earth Wed, 25 Nov 2009 08:12:42 EST news178359134 (PhysOrg.com) -- In 1811, Joseph Fourier, the 43-year-old prefect of the French district of Isčre, entered a competition in heat research sponsored by the French Academy of Sciences. The paper he submitted described a novel analytical technique that we today call the Fourier transform, and it won the competition; but the prize jury declined to publish it, criticizing the sloppiness of Fourier`s reasoning. According to Jean-Pierre Kahane, a French mathematician and current member of the academy, as late as the early 1970s, Fourier`s name still didn`t turn up in the major French encyclopedia the Encyclopędia Universalis. http://www.physorg.com/news178356724.html Other Sciences Wed, 25 Nov 2009 07:35:16 EST news178356724 (PhysOrg.com) -- Cambridge researchers have identified a group of traders consistently able to outperform the market, even during the credit crisis. http://www.physorg.com/news178349551.html Other Sciences Wed, 25 Nov 2009 07:28:40 EST news178349551 (PhysOrg.com) -- Functional Magnetic Resonance Imaging (fMRI) scans have been used, possibly for the first time, in the sentencing phase of a murder trial in Chicago in the US. http://www.physorg.com/news178354644.html Medicine & Health Wed, 25 Nov 2009 06:58:10 EST news178354644 Australia's venomous redback spiders are on the march in Japan, where they are believed to have arrived years ago as stowaways on cargo ships, a wildlife expert warned Wednesday. http://www.physorg.com/news178349649.html Biology Wed, 25 Nov 2009 05:50:01 EST news178349649 (PhysOrg.com) -- Mention of arsenic poisoning usually brings to mind underhanded murder. However, the danger of arsenic poisoning from contaminated drinking water is far greater. Low concentrations of arsenic are found in nearly all soils and thus also in ground water. About 140 million people worldwide possibly drink water that contains arsenic concentrations above the WHO-recommended limit of 10 ppb (parts per billion). http://www.physorg.com/news178347619.html Nanotechnology Wed, 25 Nov 2009 05:02:58 EST news178347619 Two feared species of Asian carp have zoomed beyond the $9 million electric barriers built to keep them out of Lake Michigan. Now, the only thing left between the carp and the Great Lakes is a lock and dam in southern Chicago. http://www.physorg.com/news178315636.html Biology Tue, 24 Nov 2009 21:40:01 EST news178315636 Google Inc. and other Internet companies have zeroed in on a resilient effort by a Republican lawmaker to pass legislation that could restrict their ability to take a nuanced approach to operating in "repressive" foreign countries, according to third-quarter lobbying reports. http://www.physorg.com/news178313476.html Technology Tue, 24 Nov 2009 20:40:03 EST news178313476 Drug users are well informed about the harms associated with the drugs they use, and perceive alcohol and tobacco to be amongst the most dangerous substances, according to a survey by UCL (University College London) and Imperial College London researchers. The findings, published in the Journal of Psychopharmacology, suggest that the current system of classifying psychoactive drugs in the UK may need to be revisited. http://www.physorg.com/news178315435.html Medicine & Health Tue, 24 Nov 2009 20:30:01 EST news178315435 The world's largest species of monkey 'chooses' mates with genes that are different from their own to guarantee healthy and strong offspring, according to a new research study. http://www.physorg.com/news178315092.html Biology Tue, 24 Nov 2009 19:59:12 EST news178315092 For thousands of years it has been prescribed by traditional healers in Brazil to treat a range of ailments from headaches and stomach pain to fever and flu. http://www.physorg.com/news178315036.html Biology Tue, 24 Nov 2009 19:58:45 EST news178315036 High salt intake is associated with significantly greater risk of both stroke and cardiovascular disease, concludes a study published in the BMJ today. http://www.physorg.com/news178314869.html Medicine & Health Tue, 24 Nov 2009 19:56:17 EST news178314869 (AP) -- Facebook has created a dual-class stock structure designed to give founder Mark Zuckerberg and other existing shareholders control over the company. http://www.physorg.com/news178312283.html Technology Tue, 24 Nov 2009 19:12:13 EST news178312283 (PhysOrg.com) -- Induced pluripotent stem (iPS) cells -- adult cells reprogrammed to look and function like versatile embryonic stem cells -- are of growing interest in medicine. They may provide a way to create different kinds of patient-matched stem cells as treatments for disease, while sidestepping many of the ethical questions surrounding stem cells created from embryos. However, the production of iPS cells is often imprecise, yielding many incompletely reprogrammed cells. Now, researchers at Children's Hospital Boston have developed a technique to help distinguish these cells from the desired pure stem cells. http://www.physorg.com/news178310446.html Biology Tue, 24 Nov 2009 18:41:07 EST news178310446 (PhysOrg.com) -- A team of astronomers from Ibaraki University, Japan Aerospace Exploration Agency, Kanagawa University, University of Tokyo, Academica Sinica, and National Astronomical Observatory of Japan have used the Subaru Telescope`s Cooled Mid-Infrared Camera and Spectrometer (COMICS) to capture the first direct, well-resolved infrared images of a circumstellar disk around a young massive star -- HD200775. Their findings contribute to understanding the role of circumstellar disks in massive star formation in particular and to the birth of stars in general. http://www.physorg.com/news178310192.html Space & Earth Tue, 24 Nov 2009 18:37:50 EST news178310192 (PhysOrg.com) -- Researchers at the University of Cincinnati have documented that the brain hormone serotonin is made in human breast cancer cells and functions abnormally, contributing to malignant growth. http://www.physorg.com/news178308579.html Medicine & Health Tue, 24 Nov 2009 18:20:02 EST news178308579