Abstract: Methods, apparatuses, and systems associated with aerosol collection devices (such as, but not limited to, breath-aerosol collector devices, breathalyzers) are provided. An example aerosol collection device includes a sample transfer adapter configured to receive a sample and a device body connected to the sample transfer adapter. In some examples, the device body defines a flow channel that guides the sample to a filter component, and the filter component contains a buffer solution.

Abstract: An example apparatus includes a block configured to connect mechanically to a circuit board. The circuit board includes a first conductive path running to a first electrical contact on the circuit board and a second conductive path running to a second electrical contact on the circuit board. The first electrical contact and the second electrical contact are arranged in an area of the circuit board. The block includes a component having a surface that is configured to cover at least part of the area. A conductive layer is attached to at least part of the surface. The conductive layer is for creating a short circuit between the first electrical contact and the second electrical contact following connection of the block to the circuit board.

Abstract: An example apparatus includes a block configured to connect mechanically to a circuit board. The circuit board includes a first conductive path running to a first electrical contact on the circuit board and a second conductive path running to a second electrical contact on the circuit board. The first electrical contact and the second electrical contact are arranged in an area of the circuit board. The block includes a component having a surface that is configured to cover at least part of the area. A conductive layer is attached to at least part of the surface. The conductive layer is for creating a short circuit between the first electrical contact and the second electrical contact following connection of the block to the circuit board.

Abstract: An improved music notation system is disclosed. Each pitch has a discrete, highly memorable symbol and corresponding mnemonic, while still having a spatial component and mapping onto the same spot as the standard system. Thus the shape of a melody can be quickly discerned, while individual pitches can also be quickly recognized without having to learn the treble and bass clef separately. Each rhythmic symbol is also unique and most are horizontal, and so now reflect how long you hold each note, thus creating a spatial component where there was none before. This makes for each rhythmic symbol to be much more intuitive and easier to learn and understand. We've also changed minor rules that empirically give trouble to beginning learners, such as placement of sharps and flats, and the ties/dots system has also been improved.