Abstract: Light fixture assemblies include a connector circuit board, light emitting diode (LED) printed circuit boards (PCBs), and an LED driver circuit. The connector board includes first LED PCB connectors and a first LED driver connector. The LED PCBs include second LED PCB connectors configured to connect to the first LED PCB connectors. The LED driver circuit includes a second LED driver connector configured to connect to the first LED driver connector. The first LED PCB connectors may include two or more first LED PCB connectors. Methods of assembling light fixtures include placing LED circuit boards including LED circuit board connectors on support structures, respectively, connecting connectors of a connector circuit board to the LED circuit board connectors, respectively, placing an end housing over the connector circuit board, and affixing the end housing to the support structures.

Abstract: A method and apparatus for measuring the presence or absence of interaction between at least a first and second material of interest by measuring osmotic pressure changes in an osmotic cell. Changes in osmotic pressure are determined by measuring the amount of compression exhibited by a compressible, semi-permeable material positioned in the cell.

Abstract: A gift wrap apparatus that attaches to a gift package. The apparatus provides a visual representation of a three —dimensional object such as an animal, person, place, thing, cartoon character, etc. The apparatus features representative sections of the three-dimensional object so that when those sections are attached to the package, the package then becomes instantly recognizable as resembling the object. Wrapping paper can be included with the invention so that the visual image of the gift package is enhanced by having the wrapping paper correspond to the image of the three-dimensional object.