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A bridge-tied load (BTL), also known as bridged transformerless and bridged mono, is an output configuration for audio amplifiers, a form of impedance bridging used mainly in professional audio & car applications. [1] The two channels of a stereo amplifier are fed the same monaural audio signal, with one channel's electrical polarity reversed.
Alternatively, when the microelectrode is close to the cell surface extracellular recordings measure the voltage change (with respect to time) outside the cell, giving only spike information. [7] Different types of microelectrodes can be used for single-unit recordings; they are typically high-impedance, fine-tipped and conductive.
Cell synchronization is a process by which cells in a culture at different stages of the cell cycle are brought to the same phase. Cell synchrony is a vital process in the study of cells progressing through the cell cycle as it allows population-wide data to be collected rather than relying solely on single-cell experiments.
Cell potency is a cell's ability to differentiate into other cell types. [1] [2] The more cell types a cell can differentiate into, the greater its potency.Potency is also described as the gene activation potential within a cell, which like a continuum, begins with totipotency to designate a cell with the most differentiation potential, pluripotency, multipotency, oligopotency, and finally ...
It is not only the presence or absence of a signal that is important but also the strength. Using a chemical gradient to coordinate cell growth and differentiation continues to be important as multicellular animals and plants become more complex. This type of intercellular communication within an organism is commonly referred to as cell signalling.
The grandmother cell hypothesis is an extreme version of the idea of sparseness, [22] [5] and is not without critics. The opposite of the grandmother cell theory is the distributed representation theory, that states that a specific stimulus is coded by its unique pattern of activity over a large group of neurons widely distributed in the brain.
3D representation of a living cell during the process of mitosis, example of an autopoietic system. The term autopoiesis (from Greek αὐτo-(auto) 'self' and ποίησις () 'creation, production'), one of several current theories of life, refers to a system capable of producing and maintaining itself by creating its own parts. [1]
Since K cells are a heterogeneous group of cells, it is likely that they contain subclasses which fulfill different functions. Some cells respond to colour, some to achromatic gratings and still others are unresponsive to any types of gratings. Experimental results suggest that K cells could contribute to aspects of spatial and temporal vision ...