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  2. List of unsolved problems in chemistry - Wikipedia

    en.wikipedia.org/wiki/List_of_unsolved_problems...

    In 2020, it was announced that Google's AlphaFold, a neural network based on DeepMind artificial intelligence, is capable of predicting a protein's final shape based solely on its amino-acid chain with an accuracy of around 90% on a test sample of proteins used by the team. [16]

  3. Transversality (mathematics) - Wikipedia

    en.wikipedia.org/wiki/Transversality_(mathematics)

    The notion of transversality of a pair of submanifolds is easily extended to transversality of a submanifold and a map to the ambient manifold, or to a pair of maps to the ambient manifold, by asking whether the pushforwards of the tangent spaces along the preimage of points of intersection of the images generate the entire tangent space of the ambient manifold. [2]

  4. Intersection - Wikipedia

    en.wikipedia.org/wiki/Intersection

    The intersection (red) of two disks (white and red with black boundaries). The circle (black) intersects the line (purple) in two points (red). The disk (yellow) intersects the line in the line segment between the two red points. The intersection of D and E is shown in grayish purple. The intersection of A with any of B, C, D, or E is the empty ...

  5. Intersection number - Wikipedia

    en.wikipedia.org/wiki/Intersection_number

    Let X be a Riemann surface.Then the intersection number of two closed curves on X has a simple definition in terms of an integral. For every closed curve c on X (i.e., smooth function :), we can associate a differential form of compact support, the Poincaré dual of c, with the property that integrals along c can be calculated by integrals over X:

  6. Do you stop in an intersection to make a left turn? Here’s ...

    www.aol.com/stop-intersection-left-turn-why...

    Answer: If your friend took his own advice (to read the driver guide), he might be inclined to retract his statement. I’ve checked with reliable sources, including the Revised Code of Washington ...

  7. Transport phenomena - Wikipedia

    en.wikipedia.org/wiki/Transport_phenomena

    In engineering, physics, and chemistry, the study of transport phenomena concerns the exchange of mass, energy, charge, momentum and angular momentum between observed and studied systems.

  8. Intersection theory - Wikipedia

    en.wikipedia.org/wiki/Intersection_theory

    A key example of self-intersection numbers is the exceptional curve of a blow-up, which is a central operation in birational geometry. Given an algebraic surface S, blowing up at a point creates a curve C. This curve C is recognisable by its genus, which is 0, and its self-intersection number, which is −1. (This is not obvious.)

  9. Intersystem crossing - Wikipedia

    en.wikipedia.org/wiki/Intersystem_crossing

    Simply-stated, it involves coupling of the electron spin with the orbital angular momentum of non-circular orbits. In addition, the presence of paramagnetic species in solution enhances intersystem crossing. [2] The radiative decay from an excited triplet state back to a singlet state is known as phosphorescence. Since a transition in spin ...