A vaccine for AIDS is still years away, warns a new report, with progress being hampered by a lack of scientific, political and economic interest.
Only one vaccine candidate has been tested fully to see if it can work in humans, says Seth Berkley, president and CEO of the International AIDS Vaccine Initiative (IAVI), which released its progress report on Monday. “That is a global disgrace,” he says. “There hasn’t been a serious effort.”
Mobile phones may damage men's sperm, Hungarian scientists say, in a study that fertility experts dismissed Monday as inconclusive.
Carrying a mobile in hip pockets or a holster on the waist could cut sperm count by nearly 30 percent, according to the research.
"The prolonged use of cell phones may have a negative effect on (sperm production) and male fertility," Dr. Imre Fejes, of the department of obstetrics and gynecology at the University of Szeged said in a summary of the study.
A naturally decaffeinated coffee plant has been discovered. Coffee from the new strain could be tastier than existing decaf brews, which can lose flavour compounds when caffeine is extracted with solvents.
Other caffeine-free plants have been reported, but the latest comes from the same genetic stock as today’s elite commercial strains. This means the decaffeinated trait should be relatively easy to breed into popular types of coffee.
Scientists have performed successful teleportation on atoms for the first time, the journal Nature reports.
The feat was achieved by two teams of researchers working independently on the problem in the US and Austria.
The ability to transfer key properties of one particle to another without using any physical link has until now only been achieved with laser light.
Experts say being able to do the same with massive particles like atoms could lead to new superfast computers.
In a step toward making ultra-powerful computers, scientists have transferred physical characteristics between atoms by using a phenomenon so bizarre that even Albert Einstein called it spooky.
Such "quantum teleportation" of characteristics had been demonstrated before between beams of light.
The work with atoms is "a landmark advance," H.J. Kimble of the California Institute of Technology in Pasadena, California, and S.J. van Enk of Bell Labs in Murray Hill, New Jersey, declare in Thursday's issue of the journal Nature.