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  2. Local reference frame - Wikipedia

    en.wikipedia.org/wiki/Local_reference_frame

    In theoretical physics, a local reference frame (local frame) refers to a coordinate system or frame of reference that is only expected to function over a small region or a restricted region of space or spacetime. The term is most often used in the context of the application of local inertial frames to small regions of a gravitational field.

  3. Ergosphere - Wikipedia

    en.wikipedia.org/wiki/Ergosphere

    Consequently, timelike or lightlike worldlines within this region must co-rotate with the inner mass. Cartesian projection, equatorial perspective. [1] In astrophysics, the ergosphere is a region located outside a rotating black hole's outer event horizon.

  4. Brodmann area - Wikipedia

    en.wikipedia.org/wiki/Brodmann_area

    A Brodmann area is a region of the cerebral cortex, in the human or other primate brain, defined by its cytoarchitecture, or histological structure and organization of cells. The concept was first introduced by the German anatomist Korbinian Brodmann in the early 20th century. Brodmann mapped the human brain based on the varied cellular ...

  5. Principle of locality - Wikipedia

    en.wikipedia.org/wiki/Principle_of_locality

    In physics, the principle of locality states that an object is influenced directly only by its immediate surroundings. A theory that includes the principle of locality is said to be a "local theory". This is an alternative to the concept of instantaneous, or "non-local" action at a distance.

  6. Biophysics - Wikipedia

    en.wikipedia.org/wiki/Biophysics

    Physics – negentropy, stochastic processes, and the development of new physical techniques and instrumentation as well as their application. Quantum biology – The field of quantum biology applies quantum mechanics to biological objects and problems.

  7. Receptive field - Wikipedia

    en.wikipedia.org/wiki/Receptive_field

    The receptive field, or sensory space, is a delimited medium where some physiological stimuli can evoke a sensory neuronal response in specific organisms. [1]Complexity of the receptive field ranges from the unidimensional chemical structure of odorants to the multidimensional spacetime of human visual field, through the bidimensional skin surface, being a receptive field for touch perception.

  8. Anatomy - Wikipedia

    en.wikipedia.org/wiki/Anatomy

    Regional anatomy is the study of the interrelationships of all of the structures in a specific body region, such as the abdomen. In contrast, systemic anatomy is the study of the structures that make up a discrete body system—that is, a group of structures that work together to perform a unique body function, such as the digestive system. [11]

  9. Trapped surface - Wikipedia

    en.wikipedia.org/wiki/Trapped_surface

    The trapped surface is a spacelike surface of co-dimension 2, in a Lorentzian spacetime. It follows [4] that any normal vector can be expressed as a linear combination of two future directed null vectors, normalised by: k + · k − = −2 The k + vector is directed “outwards” and k − “inwards”. The set of all such vectors engenders ...