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Thaumaturgy (/ ˈ θ ɔː m ə t ɜːr dʒ i / ⓘ), derived from the Greek words thauma (wonder) and ergon (work), refers to the practical application of magic to effect change in the physical world. Historically, thaumaturgy has been associated with the manipulation of natural forces, the creation of wonders, and the performance of magical ...
Mechanosensitive channels (MSCs), mechanosensitive ion channels or stretch-gated ion channels are membrane proteins capable of responding to mechanical stress over a wide dynamic range of external mechanical stimuli. [1][2][3][4] They are present in the membranes of organisms from the three domains of life: bacteria, archaea, and eukarya. [5]
As an action potential (nerve impulse) travels down an axonthere is a change in electric polarity across the membraneof the axon. In response to a signal from another neuron, sodium- (Na+) and potassium- (K+)–gated ion channelsopen and close as the membrane reaches its threshold potential. Na+channels open at the beginning of the action ...
v. t. e. In physiology, a stimulus[ 1 ] is a change in a living thing's internal or external environment. This change can be detected by an organism or organ using sensitivity, and leads to a physiological reaction. [ 2 ] Sensory receptors can receive stimuli from outside the body, as in touch receptors found in the skin or light receptors in ...
The myogenic mechanism is how arteries and arterioles react to an increase or decrease of blood pressure to keep the blood flow constant within the blood vessel. Myogenic response refers to a contraction initiated by the myocyte itself instead of an outside occurrence or stimulus such as nerve innervation. Most often observed in (although not ...
t. e. In continuum mechanics, the maximum distortion energy criterion (also von Mises yield criterion[1]) states that yielding of a ductile material begins when the second invariant of deviatoric stress reaches a critical value. [2] It is a part of plasticity theory that mostly applies to ductile materials, such as some metals.
Theurgy(/ˈθiːɜːrdʒi/; from Greek θεουργίαtheourgía), also known as divine magic, is one of two major branches of the magicalarts,[1]the other being practical magicor thaumaturgy. [2][3]Theurgy describes the ritual practicesassociated with the invocationor evocationof the presenceof one or more deities, especially with the goal of ...
Allostasis. Allostasis (/ˌɑːloʊˈsteɪsɪs/) is a physiological mechanism of regulation in which an organism anticipates and adjusts its energy use according to environmental demands. First proposed by Peter Sterling and Joseph Eyer in 1988, the concept of allostasis shifts the focus away from the body maintaining a rigid internal set-point ...