Scientists have reported that an experimental vaccine targeting one of the most common genetic drivers of pancreatic cancer, called mutant KRAS, is safe and generated a durable immune responses aimed at preventing the cancer.
(MEMPHIS, Tenn. – June 5, 2014) St. Jude Children's Research Hospital scientists have identified problems in a connection between brain structures that may predispose individuals to hearing the "voices" that are a common symptom of schizophrenia. The work appears in the June 6 issue of the journal Science.
Researchers linked the problem to a gene deletion. This leads to changes in brain chemistry that reduce the flow of information between two brain structures involved in processing auditory information.
The first genotyping of grey squirrels shows a direct link between their genetic diversity and their ability to invade new environments.
Grey squirrels are an invasive species introduced from North America. While they are common throughout most of the UK and Ireland, on mainland Europe they are currently only found in Italy, where they mostly exist in discrete, but slowly expanding, populations.
A new study says the brain, not the eye, controls the cellular process that leads to glaucoma, a finding that may help develop treatments for one of the world's leading causes of irreversible blindness.
In the paper, vision scientists and ophthalmologists describe how they performed a data and symmetry analysis of 47 patients with moderate to severe glaucoma in both eyes. In glaucoma, the loss of vision in each eye appears to be haphazard. Conversely, neural damage within the brain caused by strokes or tumors produces visual field loss that is almost identical for each eye, supporting the idea that the entire degenerative process in glaucoma must occur at random in the individual eye — without brain involvement.
In the rainforests of South America, scientists have discovered a new genus and three new species of
katydid
with the highest ultrasonic calling songs ever recorded in the animal kingdom.Katydids (bushcrickets) are insects known for their acoustic communication, with the male producing sound by rubbing its wings together (stridulation) to attract distant females for mating. But these newly discovered insects turn ultrasonic calling all the way up to 11 on the dial - males reach a frequency of a startling 150 kHz. For comparison, the calling frequencies used by most katydids range between 5 kHz and 30 kHz while nominal human hearing range ends at around 20 kHz.
Earlier this year, a team of students from Eindhoven went to Finland and built the world’s biggest ice dome, with a diameter of 30 meters. Credit: Pykrete Dome team. Song: Youngblood Hawke - Stars (Hold On)This next winter, another Eindhoven team wants to top that. They are going to make a 1:4 scale copy of Barcelona's Sagrada Familia in the town of Juuka , 40 meters high, in just three weeks.
Does money buy championships? That is the prevailing theory. While it is common for a team like Chelsea, which got purchased buy a Russian billionaire who kept buying new teams until they won, to achieve success, a Swansea is less likely.Assuming scouts and personnel managers really know what they are doing, economics should be as fine an indicator of success as anything, in that case. You might think so, in baseball, where a season is 162 games. The New York Yankees certainly did well by buying the best free agent they could get each year. But what about World Cup soccer, where after the initial round each game is sudden death? Can a national team of all-stars who have played together infrequently win more often if their players are rich?
The Digital Mapping System (DMS) instrument attached to NASA’s P-3 Orion airplane for the Operation IceBridge campaign has captured an interesting image during its latest annual Operation IceBridge campaign to the Arctic and Antarctic to monitor glaciers, ice sheets, and sea ice. The 2014 northern spring campaign ended on May 23 after eleven weeks of flights, but not before taking photos of the Kee Bird, a wrecked B-29 Superfortress that made an emergency landing on a northwest Greenland ice sheet in 1947.
Conventional touchscreens often use coatings made of indium tin oxide (ITO) which are brittle, may shatter and increasingly costly to manufacture but polymer scientists have developed a transparent electrode that could make displays shatterproof.
In a recent paper, they demonstrated how a transparent layer of electrodes on a polymer surface could be extraordinarily tough and flexible, withstanding repeated scotch tape peeling and bending tests.
If you ask any journalist who writes a science article, or a PR person pitching one, if they would rather have a blurb about their work or get mentioned on Twitter, every single one will go for the link from Science 2.0.
The mitochondrial DNA of the first Near Eastern farmers has been sequenced for the first time. In the research, experts analysed samples from three sites located in the birthplace of Neolithic agricultural practices: the Middle Euphrates basin and the oasis of Damascus, located in today's Syria and date at about 8,000 BC.
The study is focused on the analysis of mitochondrial DNA --a type of non-Mendelian maternally inherited DNA-- from the first Neolithic farmers, by means of samples obtained by the Universitat Autònoma de Barcelona (UAB) research group which were first processed by the University of Barcelona (UB) research group.
For decades, physicists have searched for exotic bound states comprising more than three quarks.
In 2011, over 120 scientists from eight countries discovered strong indications for the existence of an exotic dibaryon made up of six quarks. Now, experiments performed at Jülich's accelerator COSY have shown that uch complex particles do exist in nature. This discovery by the WASA-at-COSY collaboration goes beyond what had been done before. Physicists were only able to reliably verify two different classes of hadrons: volatile mesons comprising one quark and one antiquark and baryons consisting of three quarks.
A new study finds that seminal fluid - semen - contains biomarkers for prostate cancer, the most common cancer in men.
University of Adelaide research fellow and lead author Dr Luke Selth says the commonly used PSA (prostate specific antigen) test is by itself not ideal to test for the cancer.
But the results in Endocrine-Related Cancer show that their new test finds presence of certain molecules in seminal fluid and indicates not only whether a man has prostate cancer, but also the severity of the cancer.
