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203,305 articles from PhysOrg

NY Attorney General Subpoenas Facebook

(AP) -- The New York Attorney General has subpoenaed Facebook after the company did not respond to "many" complaints by investigators who were solicited for sex while posing as teenagers on the social-networking site.

Paleontologist Aims to Preserve Mountain

(AP) -- The Robledo Mountains' reputation as one of the world's most important landscapes of pre-dinosaur fossil trackways likely will be enhanced by another discovery - petrified wood slowly emerging from the desert floor.

What gives us sunburn protects crayfish against bacteria

The production of melanin gives us sunburns, but it also helps invertebrate animals to encapsulate attacking fungi and parasites. Uppsala University researchers, in collaboration with Korean and Thai colleagues, can now show that melanin also protects against bacterial infections, at least in crayfish. The study is published in the latest Net edition of Journal of Biological Chemistry.

'Healthy' restaurants help make us fat, says a newl study

If you're like most, you eat worst at healthy restaurants. The "health halos" of healthy restaurants often prompt consumers to treat themselves to higher-calorie side dishes, drinks or desserts than when they eat at fast-food restaurants that make no health claims, according to a series of new Cornell studies.

A search for biomarkers for early detection of colorectal cancer

Researchers at the Zhejiang University, Hangzhou have discovered that mimecan and Thioredoxin Domain-Containing Protein 5 (TXNDC5) were differentially expressed in colorectal adenoma. The research article describing this work entitled “Differential Expression of Mimecan and Thioredoxin Domain-Containing Protein 5 in Colorectal Adenoma and Cancer: A Proteomic Study” will be featured in the...

New Xerox Products Promise Deep Cuts

(AP) -- Xerox Corp. introduced color printers and ink products Monday that it said will cut the price of color copying by two-thirds, sweeping away a major hurdle for customers seeking to enter the profitable and growing color market.

Spaceflight shown to alter ability of bacteria to cause disease

Space flight has been shown to have a profound impact on human physiology as the body adapts to zero gravity environments. Now, a new study led by researchers from the Biodesign Institute at Arizona State University has shown that the tiniest passengers flown in space—microbes—can be equally affected by space flight, making them more infectious pathogens.

Fluid theory confirmed by Foton spacecraft

In scientific research, there is great satisfaction when theoretical work is eventually supported by experimentation. Such was the case this week for a team of Italian and US scientists when they received preliminary confirmation of a 10-year-old theory from a fluid science experiment that is currently orbiting the Earth on the Foton-M3 spacecraft.

New imaging technique allows doctors to 'see' molecular activity

A new technique that will enable doctors to ‘see` things happening at the molecular level using standard imaging techniques has been developed by Oxford scientists. The technique has initially been directed towards multiple sclerosis, but long-term it has the potential to be used for a vast range of health problems. The findings are published by Nature Medicine on Monday 24 September.

New study suggests cause of debilitating skin condition

New findings from researchers at Wake Forest University Baptist Medical Center and colleagues suggest why some people with kidney failure can develop a rare tightening and swelling of the skin and other organs, including the lungs and heart.

Sizing cells up: Researchers pinpoint when a cell is ready to reproduce

For more than 100 years, scientists have tried to figure out the cell size problem: How does a cell know when it is big enough to divide? In research conducted in budding yeast (Saccharomyces cerevisiae), scientists at Rockefeller University have now identified the cellular event that marks the moment when a cell knows it is big enough to commit to cell division and spawn genetic replicas of...

Rare albino ratfish has eerie, silvery sheen

A ghostly, mutant ratfish caught off Whidbey Island in Washington state is the only completely albino fish ever seen by both the curator of the University of Washington's 7.2 million-specimen fish collection and a fish and wildlife biologist with more than 20 years of sampling fish in Puget Sound.

Cancer cells in blood can identify risk of recurrence in breast cancer

Cancer cells circulating in the blood, or circulating tumour cells (CTCs), are known to be associated with a bad prognosis in women with metastatic breast cancer. Now, for the first time, a group of scientists have shown that they can also detect CTCs before and after chemotherapy treatment and hence may be able to identify those patients likely to have a recurrence of their cancer after such...

Discovery of widespread tumor growth gene holds promise for effective anti-cancer treatment

Italian scientists will announce today (Monday September 24) that they have found a new and promising target for anti-tumour therapy in cancer. Professor Saverio Alberti, from the CESI, University of Chieti Foundation, Chieti, will tell the European Cancer Conference (ECCO 14) that he and his team have found a widespread mechanism for the stimulation of tumour growth in man, and that this is...