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  2. Straw man - Wikipedia

    en.wikipedia.org/wiki/Straw_man

    A steel man argument (or steelmanning) is the opposite of a straw man argument. Steelmanning is the practice of applying the rhetorical principle of charity through addressing the strongest form of the other person's argument, even if it is not the one they explicitly presented. Creating the strongest form of the opponent's argument may involve ...

  3. Hydraulic roughness - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_roughness

    Hydraulic roughness is the measure of the amount of frictional resistance water experiences when passing over land and channel features. [1] One roughness coefficient is Manning's n-value. [2] Manning's n is used extensively around the world to predict the degree of roughness in channels. Flow velocity is strongly dependent on the resistance to ...

  4. Gating (electrophysiology) - Wikipedia

    en.wikipedia.org/wiki/Gating_(electrophysiology)

    Gating (electrophysiology) An animated representation of the molecular structure of a simple ion channel. In electrophysiology, the term gating refers to the opening ( activation) or closing (by deactivation or inactivation) of ion channels. [ 1] This change in conformation is a response to changes in transmembrane voltage.

  5. Runoff (hydrology) - Wikipedia

    en.wikipedia.org/wiki/Runoff_(hydrology)

    Runoff is the flow of water across the earth, and is a major component in the hydrological cycle. Runoff that flows over land before reaching a watercourse is referred to as surface runoff or overland flow. Once in a watercourse, runoff is referred to as streamflow, channel runoff, or river runoff . Urban runoff is surface runoff created by ...

  6. Membrane channel - Wikipedia

    en.wikipedia.org/wiki/Membrane_channel

    Membrane channel. Membrane channels are a family of biological membrane proteins which allow the passive movement of ions ( ion channels ), water ( aquaporins) or other solutes to passively pass through the membrane down their electrochemical gradient. They are studied using a range of channelomics experimental and mathematical techniques.

  7. Hydraulic diameter - Wikipedia

    en.wikipedia.org/wiki/Hydraulic_diameter

    The hydraulic diameter, DH, is a commonly used term when handling flow in non-circular tubes and channels. Using this term, one can calculate many things in the same way as for a round tube. When the cross-section is uniform along the tube or channel length, it is defined as [ 1][ 2] where. P is the wetted perimeter of the cross-section.

  8. Transmembrane channels - Wikipedia

    en.wikipedia.org/wiki/Transmembrane_channels

    Ion channels are a type of transmembrane channel responsible for the passive transport of positively charged ions (sodium, potassium, calcium, hydrogen and magnesium) and negatively charged ions (chloride) and, can be either gated or ligand-gated channels. One of the best studied ion channels is the potassium ion channel. The potassium ion ...

  9. Genetic transformation - Wikipedia

    en.wikipedia.org/wiki/Genetic_transformation

    This process of the second bacterial cell taking up new genetic material is called transformation. In molecular biology and genetics, transformation is the genetic alteration of a cell resulting from the direct uptake and incorporation of exogenous genetic material from its surroundings through the cell membrane (s).