In Science Advances, University at Buffalo researchers will report that they have managed to turn E. coli into tiny factories for producing new forms of the popular antibiotic erythromycin — including three that were shown in the lab to kill drug-resistant bacteria. —> Read More
Immunotherapy with the anti-PD-1 antibody pembrolizumab decreased the size of tumors by 30 percent or more in 24.8 percent of 132 patients with recurrent or metastatic head and neck cancer. That’s nearly twice as effective as the current preferred treatment. —> Read More
Scientists have perfected mini cultured 3-D structures that grow and function much like the outer mantle — the key working tissue, or cortex — of the brain of the person from whom they were derived. Strikingly, these ‘organoids’ buzz with neuronal network activity. Cells talk with each other in circuits, much as they do in our brains. —> Read More
Host: Fraser Cain (@fcain)
Special Guest: This week we welcome Dr. Bradley M. Peterson, whose research is directed towards determination of the physical nature of active galactic nuclei.
Jolene Creighton (@jolene723 / fromquarkstoquasars.com)
Charles Black (@charlesblack / sen.com/charles-black)
Brian Koberlein (@briankoberlein / briankoberlein.com)
Dave Dickinson (@astroguyz / www.astroguyz.com)
Morgan Rehnberg (cosmicchatter.org / @MorganRehnberg )
Alessondra Springmann (@sondy)
Read the rest of Weekly Space Hangout – May 29, 2015: Dr. Bradley M. Peterson (482 words)
© Fraser for Universe Today, 2015. |
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Post tags: #TWiM, ceres, Comet 67P, Dragon, exoplanets, Extrasolar Planets, galaxies, Gravitational Waves, Hubble, LightSail, Mars Rovers, NASA, SpaceX
Implanting cows with the embryos of genetically superior heifers is big business these days. It’s helping elite cattle breeders and beef and dairy producers spread U.S. cow genetics around the globe.
There’s a feline parasite that makes us take unnecessary risks and could even cause psychosis. And up to 4 billion of us are unknowingly infected (full text available to subscribers)
It turns out that some people can be trained to be the next Mariah Carey.
A team of psychologists recently revealed that they were able to successfully teach adults the prized musical skill of so-called absolute pitch, widely known as “perfect” pitch. The ability helps you to identify a note without using a reference pitch.
An elusive skill. Scientists previously thought that perfect pitch was either something you were born with, or something that could only be learned during childhood. The ability is considered remarkably rare — only around one in 10,000 individuals has perfect pitch.
“This is the first significant demonstration that the ability to identify notes by hearing them may well be something that individuals can be trained to do,” Dr. Howard Nusbaum, professor of psychology at the University of Chicago and part of the research team, said in a written statement. “It’s an ability that is teachable, and it appears to depend on a general cognitive ability of holding sounds in one’s mind.”
Practice makes perfect? For the research, 47 men and women at the university — with varying musical experience — listened to musical notes through headphones and were asked to recreate the note that they heard. They also were asked to identify notes by name, such as middle-C or F-sharp.
After the tests, the men and women participated in a training program, during which they listened to and identified piano notes, receiving feedback on whether they named the correct notes or not. The researchers retested the men and women after the training and found that the participants retained most of what they learned, showing improvements in identifying notes.
“We demonstrate three important findings in this paper,” Nusbaum said in the statement. “First, in contrast to previous studies, we are —> Read More
A new study, accepted for publication in the Astrophysical Journal (arXiv.org preprint), finds a link between the presence of supermassive black holes that power radio-signal-emitting jets and the merger history of their host galaxies. The authors of the study – Dr Marco Chiaberge of the Space Telescope Science Institute and his colleagues from Italy and [...] —> Read More
Edgar Nernberg is a creationist. And he won’t let a little thing like discovering a crucial link in the evolutionary chain change his mind.
Nernberg unearthed a perfectly preserved school of fossilized fish while digging a new basement in northwest Calgary, Alberta, the University of Calgary reports. He had a feeling he’d discovered something special.
Darla Zelenitsky, a paleontologist at the school, confirmed that the five fossil fish are 60 million years old. There are few complete fossils from that time period, so the fish are an influential tool in helping scientists show how animals evolved after dinosaurs went extinct.
“These fossil fish are important because they are very primitive representatives of a large group of bony fish known today,” she said.
Nernberg, however, thinks evolution is a sham. He lobbies to have creationism included in school syllabi and sits on the Big Valley Creation Science Museum‘s board of directors.
The museum’s website says its exhibits “refute the lie of evolution.” Visitors can check out a display about dinosaurs and humans, which purportedly disproves that dinosaurs went extinct long before humans lived on Earth.
Paleontologists’ feedback on the fossils hasn’t changed Nernberg’s mind about evolution, he told the Calgary Sun.
“We all have the same evidence,” he told the paper, “and it’s just a matter of how you interpret it.”
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Forget the northern lights on earth, scientists reveal Mars has the southern lights with stunning display of blue, green and red
An international team of scientists led by Nasa have found that colourful, glowing aurora can be seen by the naked eye on a terrestrial planet other than Earth. —> Read More