Saturday, September 14, 2013

Narendra Modi most searched person on Google,Earlier this record was on the name of Barack Obama

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Gujarat Chief Minister Narendra Modi, Who is elevated to BJP PM Candidate for Lok Sabha elections, has broken record of most searched person on Google.
Modi, who has emerged as most popular political icon in India, entered the record book after his name received maximum number of search on Google in a day.
Around 1000077332 (Over one billion) people searched the keyword Narendra Modi on search engine giant Google.
Earlier, this record was named after US President Barack Obama. During the US presidential elections, Barack Obama received 9877532 number of search in a single day.
On Friday, BJP top brass named Modi as its Prime Ministerial Candidate, ignoring veteran LK Advani’s opposition.

Sunday, September 8, 2013

NASA launches spacecraft to study Moon's atmosphere

roll_a3 NASA has launched an unmanned spacecraft from Virginia that aims at unlocking the mysteries of Moon's atmosphere, a first moonshot from the state in the history of space exploration.
The Lunar Atmosphere and Dust Environment Explorer or Ladee spacecraft, which is charged with studying the lunar atmosphere and dust, soared aboard an unmanned Minotaur rocket a little before midnight from from Wallops Island.
It was a change of venue for NASA, which normally launches moon missions from Cape Canaveral, Florida. But it provided a rare light show along the East Coast for those blessed with clear skies.
NASA expected the launch from Virginia's Eastern Shore to be visible, weather permitting, as far south as South Carolina, as far north as Maine and as far west as Pittsburgh. The Ladee is taking a roundabout path to the moon, making three huge laps around Earth before getting close enough to pop into lunar orbit.
Unlike the quick three-day Apollo flights to the moon, Ladee will need a full month to reach Earth's closest neighbour.
An Air Force Minotaur V rocket, built by Orbital Sciences Corp., provided the ride from NASA's Wallops Flight Facility. Ladee, which is the size of a small car, is expected to reach the moon on October 6.Scientists want to learn the composition of the Moon's ever-so-delicate atmosphere and how it might change over time. Another puzzle, dating back decades, is whether dust actually levitates from the lunar surface.
The USD 280 million moon-orbiting mission will last six months and end with a suicide plunge into the moon for Ladee. The 844-pound spacecraft has three science instruments as well as laser communication test equipment that could revolutionise data relay. NASA hopes to eventually replace its traditional radio systems with laser communications, which would mean faster bandwidth using significantly less power and smaller devices.
It was a momentous night for Wallops, which was making its first deep-space liftoff. All of its previous launches were confined to Earth orbit. NASA chose Wallops for Ladee because of the Minotaur V rocket, comprised of converted intercontinental ballistic missile motors belonging to the Air Force.
A US-Russian treaty limits the number of launch sites because of the missile parts. All but one of NASA's previous moon missions since 1959, including the manned Apollo flights of the late 1960s and early 1970s, originated from Cape Canaveral.
The most recent were the twin Grail spacecraft launched almost exactly two years ago. The military-NASA Clementine rocketed away from Southern California in 1994.
Wallops will be back in the spotlight in less than two weeks. The Virginia-based Orbital Sciences will make its first delivery to the International Space Station, using its own Antares rocket and Cygnus capsule. That commercial launch is scheduled for September 17.
sources : the indian express










Saturday, September 7, 2013

Young women who drink alcohol at greater risk of breast cancer

T330_19814_alcohol The more alcohol a young woman drinks before motherhood, the greater her risk of future breast cancer, a new study has warned.
If a female averages a drink per day between her first period and her first full-term pregnancy, she increases her risk of breast cancer by 13 per cent, according to a new study from Washington University School of Medicine in St Louis.
This is the first study to link increased breast cancer risk to drinking between early adolescence and first full-term pregnancy.
Previous studies have looked at breast cancer risk and alcohol consumption later in life or at the effect of adolescent drinking on noncancerous breast disease.
"More and more heavy drinking is occurring on college campuses and during adolescence, and not enough people are considering future risk," said study co-author Graham Colditz, associate director for cancer prevention and control at Siteman Cancer Center at Barnes-Jewish Hospital and Washington University School of Medicine.
"But, according to our research, the lesson is clear: If a female averages a drink per day between her first period and her first full-term pregnancy, she increases her risk of breast cancer by 13 per cent," Colditz said.
The researchers also found that for every bottle of beer, glass of wine or shot of liquor consumed daily, a young woman increases her risk of proliferative benign breast disease by 15 per cent.
Although such lesions are noncancerous, their presence increases breast cancer risk by as much as 500 per cent, said first author of the study, Ying Liu, a School of Medicine instructor in the Division of Public Health Sciences.
The findings are based on a review of the health histories of 91,005 mothers enrolled in the Nurses' Health Study II from 1989 to 2009.
Researchers didn't consider the effects of adolescent and early adulthood drinking on women who didn't have a full-term pregnancy because not enough were represented among those studied, Liu said.
Breast tissue cells are particularly susceptible to cancer-causing substances as they undergo rapid proliferation during adolescence and later.
Adding to the risk is the lengthening time frame between the average age of a girl's first menstrual cycle and the average age of a woman's first full-term pregnancy.
"Reducing drinking to less than one drink per day, especially during this time period, is a key strategy to reducing lifetime risk of breast cancer," he said.
The study is published in the Journal of the National Cancer Institute.
sources : the indian express













New laser technology to improve accuracy of brain tumour surgery

brain A new laser-guided imaging technology, based on work by Indian physicist CV Raman, can make brain surgery more accurate by allowing surgeons to distinguish brain tissue from tumours at a microscopic level.
A team of University of Michigan Medical School and Harvard University researchers describes how the technique allows them to "see" the tiniest areas of tumour cells in brain tissue.
The discovery relies on Raman scattering, a physics phenomena whereby shining a laser on an object emits a unique colour pattern of scattered light that represents its chemical composition.
The phenomena is named after CV Raman, one of the Indian scientists who co-discovered the effect and shared a 1930 Nobel Prize in physics for it.
The new imaging system, dubbed Stimulated Raman Scattering (SRS) microscopy, provided a colour-coded map that the researchers used to distinguish between healthy brain tissue and gliobastoma, the most common and most lethal form of primary brain cancer.
They used this technique to distinguish tumour from healthy tissue in the brains of living mice - and then showed that the same was possible in tissue removed from a patient with glioblastoma multiforme, one of the most deadly brain tumours.
"Though brain tumour surgery has advanced in many ways, survival for many patients is still poor, in part because surgeons can't be sure that they've removed all tumour tissue before the operation is over," said co-lead author Daniel Orringer.
"We need better tools for visualising tumour during surgery, and SRS microscopy is highly promising. With SRS we can see something that's invisible through conventional surgical microscopy," he said.
Over the past 15 years, Sunney Xie from the Harvard University - the senior author of the new paper – has advanced the technique for high-speed chemical imaging.
By amplifying the weak Raman signal by more than 10,000 times, it is now possible to make multicolour SRS images of living tissue or other materials.
The team can even make 30 new images every second – the rate needed to create videos of the tissue in real time.
The technique can distinguish brain tumour from normal tissue with remarkable accuracy, by detecting the difference between the signal given off by the dense cellular structure of tumour tissue, and the normal healthy grey and white matter.
The study was published in the journal Science Translational Medicine.
sources : the indian express











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