Tamara

A cancer patient made infertile by chemotherapy has, in a world first, given birth after revolutionary treatment, BBC Online quoted Belgian doctors as saying.
Ovarian tissue from the Belgian mother, 32, was removed and frozen seven years ago before chemotherapy, then re-implanted into her pelvis last year.
She conceived naturally and gave birth at Brussels' Cliniques Universitaires Saint-Luc this week, the Lancet reported. Researchers said all young women with cancer should be offered the treatment.
Baby Tamara, weighing 3.72kg (just over 8lbs) was born on Thursday night.
A spokeswoman for the Cliniques Universitaires Saint-Luc said mother and baby were in good health.
Lifesaving cancer treatment as a child of young adult can cause many women to go through an early menopause and become infertile. Radiotherapy is thought to be harmful than chemotherapy.
Experts stress most women who undergo chemotherapy will not become infertile. However the treatment may lead the length of time they are fertile being shortened.
The Belgian doctors say the fact that a successful birth has been achieved offers hope to thousands of infertile cancer patients.
The Cliniques Universitaires Saint-Luc says it has frozen ovarian tissue from 146 other cancer patients. So far, the tissue has been re-implanted in two.

A Duke University study suggests anger and hostility in healthy people can produce high levels of a substance that promotes heart disease and stroke, psychport.com said.
Researchers at Duke's Medical Center in Durham, N.C., also included moderate depressive symptoms in their study of healthy people prone to such problems.
They said such problems produce a substance called C-reactive protein or CRP.
The researchers said CRP has garnered considerable attention for its role in both promoting and predicting cardiovascular disease and stroke in initially healthy people.
It is produced by the liver in response to inflammation, and inflammation has recently been shown to underlie the plaque that forms inside arteries as they clog.
The Duke study is the first to link this combination of negative psychological attributes with higher levels of CRP in people without traditional risk factors for heart disease, said Edward Suarez, lead author of the study.

What would Mars's oceans have looked like 4 billion years ago? Scientists have worked out the answer, and found a planet with a climate ideally suited to life, nature.com said.
Their model also answers a planetary puzzle: if Mars was once a warm, wet 'greenhouse' planet rich in carbon dioxide, why does its surface contain so few carbonate minerals?
Scientists believe that the martian atmosphere must once have been thick with carbon dioxide, a greenhouse gas that would have kept the young planet warm enough for liquid water to carve its mark so clearly on the landscape.
Some of this carbon dioxide should have been trapped in tell-tale traces of carbonate minerals such as siderite (iron carbonate) that solidified from the oceans. Geologists have seen this happening on Earth, but NASA's orbiting craft, the Mars Global Surveyor and Mars Odyssey, have found very little carbonate on the red planet's surface.
Alberto Fairen, a chemist from the Autonomous University of Madrid, Spain, and his colleagues have worked out what kind of conditions must have been present on Mars for there to be so much carbon dioxide but so little carbonate.
The answer, they conclude in an article published this week in Nature1, is that the oceans were acidic enough to stop any siderite solidifying. If Mars's oceans were richly salted with iron and sulphate ions, the seas' pH would have dropped to around 6.2; similar to some tap water, but not quite as acidic as vinegar. Earth's oceans today have a pH of about 8.
As the oceans receded, any dissolved carbon dioxide would have been lost back into the atmosphere, and eventually stripped away from the planet by the harsh stream of solar particles bombarding the planet.
There is evidence to support the scientists' scenario. NASA's exploration rover Opportunity recently found large quantities of sulphate minerals such as jarosite on Mars.

Physicists have made a "complete" measurement of the break-up of a molecule for the first time. Reinhard D?rner of the University of Frankfurt and co-workers in Germany, the US, Australia and Spain recorded the two electrons and two nuclei that were released when a single photon split a molecule of deuterium into its basic components, physicsweb.org reported.
In the experiments a single photon has enough energy (75.5 electron volts) to knock both electrons out of a deuterium molecule, and the two nuclei then fly apart because they are both positively charged. By measuring the momenta of all four particles it is possible to learn more about what was happening inside the molecule.
D?rner and co-workers started by ionizing a jet of deuterium molecules with polarized photons from the Advanced Light Source at the Lawrence Berkeley National Laboratory in the US. They used deuterium instead of ordinary hydrogen because it is heavier and therefore provides a higher target density for the photon beam. (A deuterium nucleus contains a proton and a neutron whereas a hydrogen nucleus contains just a proton.)
Next, they used electric and magnetic fields to accelerate the electrons created in the ionization process in one direction, and the nuclei in another. The particles then left the region containing the electric field and drifted onto "micro-channel plate" detectors. For each particle, D?rner and co-workers were able to measure how long it took to reach the detector and the position of impact on the plate. This allowed them to calculate the initial momentum of all four particles and build up a 3D image of the photo-fragmentation "explosion".
The results show that the behavior of the electrons is strongly influenced by the separation of the nuclei at the instant the photon is absorbed.

Scientists have discovered what may have been one of the first stealth hunters, a long-necked swimming dinosaur that could sneak up on prey and attack without warning.
"The long neck would allow it to approach prey without the whole body becoming visible," Olivier Rieppel of the Field Museum in Chicago, a co-author of the report, said in an interview.
The newly found reptile with fangs lived in a shallow sea in what is now southeast China more than 230 million years ago, the research team, led by Chun Li of the Chinese Academy of Sciences, CNN reported.
Li first found the head of the dinosaur in the fall of 2002, and later uncovered the remainder of the animal. He named it Dinocephalosaurus orientalis, meaning terrible headed lizard from the Orient.
Dinocephalosaurus is related to Tanystropheus, another long-necked reptile that lived in the area of Europe and the Middle East.
But the researchers said the newly named creature had 25 neck vertebrae, more than twice that of Tanystropheus, and in Dinocephalosaurus they were not as elongated. It had rib-like bones parallel to the vertebrae.
Both are members of a diverse reptile group called the protorosaurs, which have long necks and elongated neck vertebrae.
Scientists have long wondered at the purpose for the long necks in this group of animals.
As Dinocephalosaurus approached in murky water, its prey would have been aware only of the relatively small head, not the full-size profile of a predator.