1 Future-Spot spread model assumes that future oil spot price is determined by a combination of current spot price and current futures price, and a properly constructed spread between these two current prices can predict the future oil spot price. 2  Mathematically, the model could be presented as:
corticospinal tract The nervous system tract that conducts impulses from the brain to the spinal cord. It contains mostly motor axons and is made up of two separate tracts in the spinal cord: the lateral corticospinal tract and the anterior corticospinal tract.
This article is about the ascending tracts â the pathways by which sensory information from the peripheral nerves is transmitted to the cerebral cortex.In some texts, ascending tracts are also known as somatosensory pathways or systems.unctionally, the ascending tracts can be divided into the type of information they transmit; conscious or unconscious: 1  Conscious tracts â Comprised of the dorsal column-medial lemniscal pathway, and the anterolateral system. 2  Unconscious tracts â Comprises of the spinocerebellar tracts.