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  2. Computing the permanent - Wikipedia

    en.wikipedia.org/wiki/Computing_the_permanent

    and it allows to polynomial-time reduce the computation of the permanent of an n×n-matrix with a subset of k or k − 1 rows expressible as linear combinations of another (disjoint) subset of k rows to the computation of the permanent of an (n − k)×(n − k)- or (n − k + 1)×(n − k + 1)-matrix correspondingly, hence having introduced a ...

  3. Vpr - Wikipedia

    en.wikipedia.org/wiki/Vpr

    Vpr is a Human immunodeficiency virus gene and protein product. [1] [2] Vpr stands for "Viral Protein R".Vpr, a 96 amino acid 14-kDa protein, plays an important role in regulating nuclear import of the HIV-1 pre-integration complex, and is required for virus replication and enhanced gene expression from provirus in dividing or non-dividing cells such as T cells or macrophages. [3]

  4. Casio V.P.A.M. calculators - Wikipedia

    en.wikipedia.org/wiki/Casio_V.P.A.M._calculators

    The model featured a 5×6-dot LCD matrix cells on the top line of the screen and a 7-segment LCD on the bottom line of the screen that had been used in Casio fx-4500P programmable calculators. [1] The S-V.P.A.M. system was also used in the other W series models and also the MS series of calculators that followed.

  5. Structure and genome of HIV - Wikipedia

    en.wikipedia.org/wiki/Structure_and_genome_of_HIV

    The genome and proteins of HIV (human immunodeficiency virus) have been the subject of extensive research since the discovery of the virus in 1983. [1] [2] "In the search for the causative agent, it was initially believed that the virus was a form of the Human T-cell leukemia virus (HTLV), which was known at the time to affect the human immune system and cause certain leukemias.

  6. g-VPR model - Wikipedia

    en.wikipedia.org/wiki/G-VPR_model

    The g-VPR model is a model of human intelligence published in 2005 by psychology professors Wendy Johnson [1] and Thomas J. Bouchard Jr. (Johnson & Bouchard, 2005) [2] They developed the model by analyzing Gf-Gc theory, John Carroll’s Three-stratum theory and Vernon’s verbal-perceptual model. [2] The g-VPR model is a four stratum model:

  7. Video plankton recorder - Wikipedia

    en.wikipedia.org/wiki/Video_plankton_recorder

    A video plankton recorder (VPR) is towed underwater video microscope system, which photographs small to fine-scale structure of plankton, from 50 micrometers and up to a few centimeters in size. [ 1 ] [ 2 ] A VPR consists of five general components: cameras (with magnifying optics [ 3 ] ), strobe, additive sensor and flight control, underwater ...

  8. Verilog-to-Routing - Wikipedia

    en.wikipedia.org/wiki/Verilog-to-Routing

    Verilog-to-Routing (VTR) is an open source CAD flow for FPGA devices. [1] [2] [3] VTR's main purpose is to map a given circuit described in Verilog, a hardware description language, on a given FPGA architecture for research and development purposes; the FPGA architecture targeted could be a novel architecture that a researcher wishes to explore, or it could be an existing commercial FPGA whose ...

  9. Ray transfer matrix analysis - Wikipedia

    en.wikipedia.org/wiki/Ray_transfer_matrix_analysis

    As one example, if there is free space between the two planes, the ray transfer matrix is given by: = [], where d is the separation distance (measured along the optical axis) between the two reference planes.