Online registration for this semester’s courses :D
General anatomy and phisiology
Methods in field ecology
Genetically Engineering Almost Anything
When it comes to genetic engineering, we’re amateurs. Sure, we’ve known about DNA’s structure for more than 60 years, we first sequenced every A, T, C, and G in our bodies more than a decade ago, and we’re becoming increasingly adept at modifying the genes of a growing number of organisms.
But compared with what’s coming next, all that will seem like child’s play. A new technology just announced today has the potential to wipe out diseases, turn back evolutionary clocks, and reengineer entire ecosystems, for better or worse. Because of how deeply this could affect us all, the scientists behind it want to start a discussion now, before all the pieces come together over the next few months or years. This is a scientific discovery being played out in real time.
Be the myrosinase to my sinigrin, and make me into the person you know I can be.
2=0 in the same way as 1/2 and 1/4 are the same number.
Broad-bordered Bee Hawkmoth
This beautiful furry moth is named Hemaris fuciformis (Sphingidae), a day-flying species that inhabits clearings, forest edges, forest gap systems and shrub-reach areas in grasslands and slopes.
The distribution of the species extends from Northwest Africa across most of Europe until well into Asia.
Photo credit: ©Steve Covey | Locality: Captive bred (UK)
— ¿Por qué estás triste?
— Me diagnosticaron diabetes tipo 2.
— Relájate, cómete un Snickers.
— Oye, ¿Mejor?
Electric Aliens? Bacteria discovered that exist on pure energyPublished time: July 19, 2014 18:24
Microbiologists based in California have discovered bacteria that survive by eating pure electrons rather than food, bringing an entirely new method of existence to awareness and raising questions about possibilities for alien life.
The ‘electric bacteria’ – as they have been dubbed by the team that discovered them – take energy from rocks and metal by feasting directly on their electrons. The hair-like filaments the bacteria produce carry electrons between the cells and their environment.
The biologists from the University of Southern California (USC) found that the new discovery joins more than ten other different specific type of bacteria that also feed on electricity – although none in quite the same way.
“This is huge. What it means is that there’s a whole part of the microbial world that we don’t know about,”Kenneth Nealson of USC told New Scientist.
Nealson explained the process by which the bacteria function. “You eat sugars that have excess electrons, and you breathe in oxygen that willingly takes them,” he said. Human cells break down the sugars in order to obtain the electrons – making the bacteria that only absorb the electrons that much more efficient.
“That’s the way we make all our energy and it’s the same for every organism on this planet,” Nealson said. “Electrons must flow in order for energy to be gained.”
Some of the bacteria even have the ability to make ‘bio-cables’ – a kind of microbial collection of wires that can conduct electricity as well as copper – renowned for its high electrical conductivity.
Such ‘nanowires’ were first discovered in a separate study conducted by researchers at Aarhus University in Denmark. Their presence raises the possibility that one day bacteria could be used in making subsurface networks for people to use.
“Tens of thousands of bacteria can join to form a cable that can carry electrons over several centimeters,” the New Scientist video on the subject points out.
read more from RT