829,918 articles

Clues on how flowering plants spread

(PhysOrg.com) -- Scientists have long scratched their heads over the Earth’s dazzling array of flowering plants. While conifers took 300 million years to yield hundreds of species, flowering plants diversified in less than half that time into 250,000 species, encompassing everything from massive trees to the most delicate wildflowers, from hardy, low-growing alpine plants to bug-eating...

Johannes Kepler has left the Station

Europe’s Johannes Kepler ATV cargo ferry undocked from the International Space Station today at 14:46:30 GMT (16:46:30 CEST). The craft is now leaving the orbital outpost far behind and will end its mission on Tuesday evening as a shooting star over the Pacific Ocean.

New study reveals pigs could grow human organs

(PhysOrg.com) -- At the annual European Society of Human Genetics conference, a group of researchers presented their newly discovered technique that may soon enable pigs to grow human organs for transplant.

Origami in seed capsules

(PhysOrg.com) -- A number of plants disperse their seeds in a rather artistic way: the seed capsules of the ice plant Delosperma nakurense, for instance, unfold lids over the seed compartments in the manner of a movable origami when they are moistened by rain. This is the finding of researchers at the Max Planck Institute of Colloids and Interfaces in Potsdam and the Technische Universität...

Putting a new spin on computing

(PhysOrg.com) -- Physicists at the University of Arizona have achieved a breakthrough toward the development of a new breed of computing devices that can process data using less power.

Sleeping sickness parasite masters three different swimming modes

(PhysOrg.com) -- The causative agent of African sleeping sickness, annually responsible for several thousands of deaths in Africa and South America, is a motile cell: it propels itself through its host’s bloodstream until – in the last stage of the disease – it overcomes the blood-brain-barrier and penetrates its victim’s brain. In order to fight this deadly disease, scientists...

Stanford team devises a better solar-powered water splitter (w/ video)

(PhysOrg.com) -- The process of splitting water into pure oxygen and clean-burning hydrogen fuel has long been the Holy Grail for clean-energy advocates as a method of large-scale energy storage, but the idea faces technical challenges. Stanford researchers may have solved one of the most important ones.

Study confirms 'white coat effect;' value of home blood pressure monitoring

(Medical Xpress) -- People with hypertension often experience a spike in blood pressure when the reading is taken in a doctor’s office, leaving doctors with inaccurate information to determine the course of treatment, according to researchers at Duke University Medical Center and the Durham Veterans Affairs Medical Center.

Study explores possible causes of well-being in old age

(PhysOrg.com) -- Investigators from the UK and China are to analyse the most in-depth surveys on aging ever carried out in both countries to explore what key factors affect the well-being of the elderly. They will also compare differences between the two countries on what it means to be old in research that aims to inform policy makers looking to develop programmes to support the elderly.

Tunnel view of how electrons play

(PhysOrg.com) -- Electrons behave like football teams: the match becomes interesting when the teamwork is as good as that conjured up by the players of FC Barcelona. Electrons which interact strongly with each other give rise to superconductivity, the lossless transport of current, for example. A team headed by researchers at the Max Planck Institute for Chemical Physics of Solids in Dresden is...

Artificial sweetener leaves lingering aftertaste in the environment

(PhysOrg.com) -- Recently, the global use of artificial sweeteners in foods has dramatically increased. A new study led by Cesar Torres, and Rosa Krajmalnik-Brown – researchers at the Biodesign Institute at Arizona State University – examines the trail of sucralose, one of the most popular of such products, after it is digested in the human body.

Cassini captures ice queen Helene

(PhysOrg.com) -- NASA's Cassini spacecraft has successfully completed its second-closest encounter with Saturn's icy moon Helene, beaming down raw images of the small moon. At closest approach, on June 18, Cassini flew within 4,330 miles (6,968 kilometers) of Helene's surface. It was the second closest approach to Helene of the entire mission.

Computer scientists claim world data sorting record for second year

(PhysOrg.com) -- Not content to rest on their laurels, a team of data center researchers from the Center for Networked Systems (CNS) at the University of California, San Diego recently broke two of their own world records. They also set world records in three other categories, including one for their TritonSort-MR system sorting a terabyte (one trillion bytes) of data in 106 seconds.

Dutch parliament voting on mobile 'net neutrality'

(AP) -- The Dutch parliament appears set to approve a bill Tuesday that would force mobile Internet providers to let their customers use Skype and other third-party services on their networks without charging extra or giving preferential treatment to their own offerings.

Free app protects Facebook accounts from hackers

(PhysOrg.com) -- Two University of California, Riverside graduate students and a company run by an alumnus of the school have partnered to develop a free Facebook application that detects spam and malware posted on users' walls and news feeds.