I had previously speculated on how electric and magnetic fields generated by individual neurons may be able to transmit information to other neurons with which they are not in synaptic contact. From a purely physical point of view it strikes me as at least something to investigate. After all, we know that there are broad sweeps of electric fields that travel across the brain - whether alpha, beta, gamma, delta or theta waves. Such endogenous fields are both generated by the brain and feed back upon the brain. There must therefore be a mechanism by which such emergent fields are generated, sustained and propagated by the basic units of our brain: the neurons.

Have you ever seen a galaxy ?

I mean, not a picture of one. The real thing. A picture is a representation of reality, and as such it conveys to our senses only a pale suggestion of the stimulation that experiencing the real thing provides. In a world where images, still and in motion, have a dominant role in our lives, we tend to forget how different are some things when we experience them directly.

In a report published in the Proceedings of the National Academy of Sciences, researchers from The Wistar Institute suggest that mice that lack the p21 gene gain the ability to regenerate lost or damaged tissue.

The team says their findings provide solid evidence to link tissue regeneration to the control of cell division.

Unlike typical mammals, which heal wounds by forming a scar, these mice begin by forming a blastema, a structure associated with rapid cell growth and de-differentiation as seen in amphibians. The loss of p21 causes the cells of these mice to behave more like embryonic stem cells than adult mammalian cells

Scientists have an emerging interest in lectins, naturally occurring chemicals in plants, because of their ability to halt the chain of reaction that leads to a variety of infections.

Now, researchers from the University of Michigan say they have found a potent inhibitor of HIV, derived from  the lectin found in bananas that may open the door to new treatments to prevent sexual transmission of HIV.

In laboratory tests, BanLec, the lectin found in bananas, was as potent as two current anti-HIV drugs, T-20 and maraviroc, currently in clinical use. Based on the findings published in the Journal of Biological Chemistry, BanLec may become a less expensive new component of applied vaginal microbicides.

New archaeological evidence recovered at Cova Gran de Santa Linya (Southeastern PrePyrenees, Catalunya, Spain) suggests that 'modern humans' first appeared on the Iberian Peninsula during the Middle/Upper Palaeolithic transition, according to researchers from the Universitat Autònoma de Barcelona.

The research, published in the Journal of Human Evolution, also supports the hypothesis that there was neither interaction nor coexistence between humans and Neanderthals during the period.

Cova Gran is a large shelter covering a total surface area of 2,500 meters squared,

A new genus and species of carnivorous amphibian from western Pennsylvania, Fedexia striegeli, provides the earliest widespread evidence of terrestrial Vertebrates, say researchers from Carnegie Museum of Natural History.

The fossil skull, found in 2004 near Pittsburgh International Airport, was recovered from rocks deposited approximately 300 million years ago during the Late Pennsylvanian Period.  The rocks where Fedexia was found are nearly 20 million years older than the localities of its fossil relatives, suggesting that the expansion and diversification of this group occurred much earlier than had been recognized previously. 

The findings are detailed  in the Annals of Carnegie Museum

Babies may be born with a predisposition to dance and find music - specifically, rhythm and tempo - more engaging than speech, according to a study of infants aged between five months and two years old.

While predisposition towards music may be innate, researchers are unsure why it developed in humans. "One possibility is that it was a target of natural selection for music or that it has evolved for some other function that just happens to be relevant for music processing," the authors write.

For the study, 120 infants listened to a variety of audio stimuli including classical music, rhythmic beats and speech. Their spontaneous movements were recorded by video and 3D motion-capture technology and compared across the different stimuli.