That associated with charge transport by holes,
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That arising in a semiconductor containing acceptor impurities, with con
Manner in which an individual unexpanded leaf, sepal or petal is folded, rolled or coiled in the bud. Also vernation.
The probability of observing an outcome as extreme as, or more extreme than that actually arising from a particular experiment or sample when a particular hypothesis is true. A low p-value is taken to indicate evidence against the particular hypothesis.
Electronic device implanted in to chest wall with conducting wire to the heart to regulate abnormal heart rhythms by means of electrical pulses. Used when the sino-atrial or atrio-ventricular nodes, which usually regulate heart rhythm, are deficient or diseased. Powered by lightweight longlife cells, eg lithium battery,
A region of the body which determines the activity of other parts of the body; eg the sino-atrial node from which originate the impulses causing the heart beat.
Large vertically-set cylindrical vessel used in chemical treatment of ores, in which pulp is reacted with suitable solvents for long periods, while the contents are agitated by compressed air. Also Brown tank.
A soft flabby tumour, composed of fibrous and nervous tissue, which hangs over the face or the ears.