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219,370 articles from PhysOrg

Primate sperm competition: speed matters

Researchers at UC San Diego and UC Irvine have found evidence that supports the theory that reproductive competition during the evolution of primate species has occurred at the level of sperm cell motility.

Office 2008 for Mac Set for Jan. Release

(AP) -- Microsoft Corp. said it will release three versions of its Office 2008 for Mac suite in January, with the most expensive of the bunch aimed at creative professionals overwhelmed by the task of organizing their digital media files.

Report: Microsoft May Buy Facebook Stake

(AP) -- Setting the stage for a possible bidding battle, Microsoft Corp. is mulling an investment in Facebook Inc. that would value the rapidly growing online hangout at $10 billion or more, according to a report published Monday.

Apple Warns Hacking iPhone May Harm It

(AP) -- IPhone owners who have unlocked their handsets so they could use carriers other than AT&T Inc. may end up with a phone that doesn't work after the company's next software update, Apple Inc. warned Monday.

Lymph nodes can be key in spreading prion infectivity

Lymph nodes can be crucial for spreading low doses of infective prion agents -the pathogens responsible for conditions such as scrapie and Creutzfeldt-Jakob disease - into the nervous system, according to new research published in the online open access journal BMC Veterinary Research.

Poll reveals public awareness of nanotech stuck at low level

National survey findings released today indicate that Americans` awareness of nanotechnology remains low. Popular awareness is nearly as small as the tiny nanoscale materials and nano-enabled devices and products now flowing onto the market from this rapidly progressing technology that experts believe will usher in a new industrial revolution.

Printing in 3-D

It is a simple matter to print an E-book or other document directly from your computer, whether that document is on your hard drive, at a web site or in an email. But, imagine being able to 'print' solid objects, a piece of sports equipment, say, or a kitchen utensil, or even a prototype car design for wind tunnel tests. US researchers suggest such 3-D printer technology will soon enter the...

Scientists discover how cancer may take hold

A team, led by researchers at the Carnegie Institution, has found a key biochemical cycle that suppresses the immune response, thereby allowing cancer cells to multiply unabated. The research shows how the biomolecules responsible for healthy T-cells, the body`s first defenders against hostile invaders, are quashed, permitting the invading cancer to spread. The same cycle could also be involved in...

Group to Build Gas-Monitoring Station

(AP) -- An international group announced plans on Monday to erect what it claims will be the highest-altitude, greenhouse gas-monitoring center to date, to be built atop the Sierra Negra volcano in central Mexico.


MONDAY 24. SEPTEMBER 2007


Bacteria join ranks of lazy cheaters

Baseball had its steroids and Black Sox. Politics lived through Watergate. Wall Street has been riddled with insider trading scandals. And before we cast the first stone, who among us has never tried to get through an intersection on a yellow light?

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...