منابع مشابه
Sending sound to the brain.
The cochlear implant, a microelectrode array that directly stimulates the auditory nerve, has greatly benefited many individuals with profound deafness. Deaf patients without an intact auditory nerve may be helped by the next generation of auditory prostheses: surface or penetrating auditory brainstem implants that bypass the auditory nerve and directly stimulate auditory processing centers in ...
متن کاملSending a message to the other side.
The cell membrane provides a physical barrier that separates the internal contents of a cell from the surrounding environment. This separation enables the generation of higher (or lower) concentrations of chemicals within the cell compared to the extracellular conditions. Furthermore, it enables the formation of electrochemical gradients across the cell membrane that can be used to drive biolog...
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The Hebbian hypothesis of activity-dependent synaptic plasticity has gained much support from experimental studies of long-term potentiation and depression. Such studies have also uncovered complex patterns of competition among the synapses. Such eeects may be due to the neuron redistributing its limited synaptic resources as synaptic strengths change. In computational models this strategy is c...
متن کاملSending signals dynamically.
Proteins mediate transmission of signals along intercellular and intracellular pathways and between the exterior and the interior of a cell. The dynamic properties of signaling proteins are crucial to their functions. We discuss emerging paradigms for the role of protein dynamics in signaling. A central tenet is that proteins fluctuate among many states on evolutionarily selected energy landsca...
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Archaeological Dialogues / Volume 22 / Issue 02 / December 2015, pp 146 149 DOI: 10.1017/S1380203815000203, Published online: 02 November 2015 Link to this article: http://journals.cambridge.org/abstract_S1380203815000203 How to cite this article: Monica L. Smith (2015). Towns and cities. A commentary on ‘performing towns’. Archaeological Dialogues, 22, pp 146-149 doi:10.1017/S1380203815000203 ...
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ژورنال
عنوان ژورنال: BMJ
سال: 1942
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.2.4270.552