Trevor Blake: Science in the News
“I think that what is common to art, myth, science and even pseudo-science is that they all belong to something like a creative phase which allows us to see things in a new light, and seeks to explain the everyday world by reference to hidden worlds [...] These hypothetical worlds are, as in art, products of our imagination, our intuition. But in science they are controlled by criticism; scientific criticism, rational criticism, is guided by the regulative idea of truth. We can never justify our scientific theories, for we can never know whether they will not turn out to be false. But we can subject them to critical examination: rational criticism replaces justification. Criticism curbs the imagination, but does not put it in chains.” – Sir Karl Popper, In Search of a Better World
UniSci: Bacterium Can Alter Evolution Of Another Species
Scientists have found the most convincing evidence yet that a parasite can contribute to splitting a species in two, thanks to a phenomenon in which a wasp’s damaged sperm can be “rescued” or fixed only by mating with particular females.
Chemical & Engineering News: Chemotaxis
The droplet, composed of 2-hexyldecanoic acid in either dichloromethane or mineral oil, travels several centimeters through a maze with a pH gradient. The pH is high at the maze entrance and low at its exit. Once in the maze, the droplet travels toward the lower pH, and in doing so, Grzybowski notes, it always finds the shortest path through the maze.
BBC News: Sushi May ‘Transfer Genes’ to Gut
By eating sushi wrapped in the seaweed, people probably ingested these bacteria along with the genes coding for that digestive enzyme.
BBC News: Neanderthal Genes ‘Survive in Us’
The genomes of 1% to 4% of people in Eurasia come from Neanderthals.
The Guardian: Gene-Swap Plan to Thwart Diseases
Researchers from Newcastle University say their breakthrough will help women whose children are at risk of a range of mitochondrial diseases. These disorders can be mild or very severe, and can cause muscle weakness, blindness, heart and liver failure, diabetes and learning disabilities. They affect one child in every 6,500.
Mark Changizi: Turning Vision Into A Programmable Computer
Might it be possible to harness our visual computational powers for other tasks, perhaps for tasks cognition finds difficult?
BBC News: Singing ‘Rewires’ Damaged Brain
By singing, patients use a different area of the brain from the area involved in speech. If a person’s “speech centre” is damaged by a stroke, they can learn to use their “singing centre” instead.
Science Daily: Hand Gestures Linked To Better Speaking
New research at the University of Alberta suggests that gesturing while you talk may improve your access to language.
Maths.org: Maths and Hallucinations
So common are geometric hallucinations, that in the last century scientists began asking themselves if they couldn’t tell us something fundamental about how our brains are wired up. And it seems that they can.
Science Now: Researchers Turn Mosquitoes Into Flying Vaccinators
A group of Japanese researchers has developed a mosquito that spreads vaccine instead of disease. Even the researchers admit, however, that regulatory and ethical problems will prevent the critters from ever taking wing—at least for the delivery of human vaccines.
Washington Post: Somali Islamist Rebels Ban English, Science Lessons
Somalia’s hardline Islamists have banned English and science studies in schools in the southern Afmadow town after the education centers there ignored the rebels’ call for fighters, residents and teachers say.
First of a series that could end at any moment.
