Neuroscience

Brain's vision secrets unraveled

A new study led by scientists at the Universities of York and Bradford has identified the two areas of the brain responsible for our perception of orientation and shape.

Oncology & Cancer

New detector for rare cancer cells

(Medical Xpress) -- Researchers in the US have developed a new detector for measuring rare circulating tumor cells (CTCs) in samples of whole blood.

Medical research

Magnetic fields prevent editor from talking (w/ video)

(PhysOrg.com) -- By holding an electromagnet close to a person’s skull, researchers can alter the neuron activity in the person’s brain. This technique, called transcranial magnetic stimulation (TMS), can be used ...

Medical research

A window into the hidden world of colons

Biomedical engineers at Duke University have developed a system that allows for real-time observations of individual cells in the colon of a living mouse.

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Magnetic field

Magnetic fields surround magnetic materials and electric currents and are detected by the force they exert on other magnetic materials and moving electric charges. The magnetic field, at a given point, is specified by both a direction and a magnitude (or strength); as such it is a vector field.

In special relativity, the electric field and magnetic field are two interrelated aspects of a single object, called the electromagnetic field. A pure electric field in one reference frame is observed as a combination of both an electric field and a magnetic field in a moving reference frame.

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