Abstract: An optoelectronic device has a layered construction, comprising a base layer, a first conductive layer, a photoactive layer and a second conductive layer. Plural separation channels extending through the photoactive layer and the first conductive layer separate the photoactive layer into photoactive regions, and insulator material extends through the respective separation channels to the base layer. Between adjacent photoactive regions, electrical connectors extend inside the lateral extent of the insulator material between a surface of a second electrode that is in electrical contact with one photoactive region to an opposing surface of a first electrode that is in electrical contact with the other photoactive region. By forming the electrical connectors extend inside the lateral extent of the insulator material, the overall size of the connection is minimized.

Abstract: An optoelectronic device has a layered construction, comprising a base layer, a first conductive layer, a photoactive layer and a second conductive layer. Plural separation channels extending through the photoactive layer and the first conductive layer separate the photoactive layer into photoactive regions, and insulator material extends through the respective separation channels to the base layer. Between adjacent photoactive regions, electrical connectors extend inside the lateral extent of the insulator material between a surface of a second electrode that is in electrical contact with one photoactive region to an opposing surface of a first electrode that is in electrical contact with the other photoactive region. By forming the electrical connectors extend inside the lateral extent of the insulator material, the overall size of the connection is minimised.

Abstract: An insulated metal substrate composite has a patterned conductive layer on one surface and receives one or more electrodes of MOSFETs or other die on the patterned segments which lead to the edge of the IMS. The outer periphery of the IMS is cupped or bent to form a shallow can with two or more die fixed to and thermally coupled to the flat web of the can while electrodes on the die surfaces thermally coupled to the web of the can lead to terminals on the rim of the can which are coplanar with the bottom surfaces of the die. The electrodes can be externally or internally connected to form a half bridge circuit.

Abstract: Crystals and structures are provided for an eukaryotic RNA polymerase, and an elongation complex containing a eukaryotic RNA polymerase. The structures and structural coordinates are useful in structural homology deduction, in developing and screening agents that affect the activity of eukaryotic RNA polymerase, and in designing modified forms of eukaryotic RNA polymerase. The structure information may be provided in a computer readable form, e.g. as a database of atomic coordinates, or as a three-dimensional model. The structures are useful, for example, in modeling interactions of the enzyme with DNA, RNA, transcription factors, nucleotides, etc. The structures are also used to identify molecules that bind to or otherwise interact with structural elements in the polymerase.

Abstract: An insulated metal substrate composite has a patterned conductive layer on one surface and receives one or more electrodes of MOSFETs or other die on the patterned segments which lead to the edge of the IMS. The outer periphery of the IMS is cupped or bent to form a shallow can with two or more die fixed to and thermally coupled to the flat web of the can while electrodes on the die surfaces thermally coupled to the web of the can lead to terminals on the rim of the can which are coplanar with the bottom surfaces of the die. The electrodes can be externally or internally connected to form a half bridge circuit.

Abstract: A speaker system includes a speaker driver loaded by a horn waveguide. The speaker driver reproduces sound within an extended frequency range that includes a high frequency band between 8 kHz and 11 kHz. In the preferred embodiment, the extended frequency range includes a wide frequency band between 2 kHz and 11 kHz (and most preferably including the frequency band between 800 Hz and 11 kHz). The horn waveguide has an axi-symmetrical waveguide surface that provides uniform polar dispersion at dispersion angles greater than 90 degrees for sound within the extended frequency range. The waveguide surface preferably has an annular cross section with a radial dimension that increases curvilinearly from its throat to its mouth, such as a tractroid surface.

Abstract: Crystals and structures are provided for an eukaryotic RNA polymerase, and an elongation complex containing a eukaryotic RNA polymerase. The structures and structural coordinates are useful in structural homology deduction, in developing and screening agents that affect the activity of eukaryotic RNA polymerase, and in designing modified forms of eukaryotic RNA polymerase. The structure information may be provided in a computer readable form, e.g. as a database of atomic coordinates, or as a three-dimensional model. The structures are useful, for example, in modeling interactions of the enzyme with DNA, RNA, transcription factors, nucleotides, etc. The structures are also used to identify molecules that bind to or otherwise interact with structural elements in the polymerase.