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This effect is extremely sensitive to weak magnetic fields, and readily disturbed by radio-frequency interference, unlike a conventional iron compass. Birds have iron-containing materials in their upper beaks. There is some evidence that this provides a magnetic sense, mediated by the trigeminal nerve, but the mechanism is unknown.
MAG is a member of the SIGLEC family of proteins and is a functional ligand of the NOGO-66 receptor, NgR. [5] MAG is believed to be involved in myelination during nerve regeneration in the PNS [ 6 ] and is vital for the long-term survival of the myelinated axons following myelinogenesis . [ 7 ]
A memristor (/ ˈ m ɛ m r ɪ s t ər /; a portmanteau of memory resistor) is a non-linear two-terminal electrical component relating electric charge and magnetic flux linkage.It was described and named in 1971 by Leon Chua, completing a theoretical quartet of fundamental electrical components which also comprises the resistor, capacitor and inductor.
David Jones, vice president for global marketing of Friendster, said that "the biggest percentage of (their site's) users is from the Philippines, clocking in with 39 percent of the site's traffic." He further added that in March 2008 alone, Friendster recorded 39 million unique visitors, with 13.2 million of whom were from the Philippines. [9]
In electromagnetism, the magnetic susceptibility (from Latin susceptibilis 'receptive'; denoted χ, chi) is a measure of how much a material will become magnetized in an applied magnetic field. It is the ratio of magnetization M ( magnetic moment per unit volume ) to the applied magnetic field intensity H .
Production of cAMP in response to activation of TDAG8 G protein-coupled receptor by low pH. Data from Wang et al., "TDAG8 is a proton-sensing and psychosine-sensitive G-protein-coupled receptor". [1] Proton-sensing G protein-coupled receptors are transmembrane receptors which sense acidic pH and include GPR132 (G2A), GPR4, GPR68 (OGR1) and ...
Magnetic field viewing film is used to show stationary or (less often) slowly changing magnetic fields; it shows their location and direction. It is a translucent thin flexible sheet, coated with micro-capsules containing nickel flakes suspended in oil. [ 1 ]
Below the magnetization compensation point, ferrimagnetic material is magnetic. At the compensation point, the magnetic components cancel each other, and the total magnetic moment is zero. Above the Curie temperature, the material loses magnetism. Ferrimagnetism has the same physical origins as ferromagnetism and antiferromagnetism.