Abstract: The invention relates to prokaryotic cells for the production of polymers containing non-canonical amino acids, and to methods for making said cells. The invention also relates to newly obtainable polymers as produced by the cells of the invention. In addition, the invention relates to new orthogonal aminoacyl-tRNA synthetases (aaRSs) and orthogonal tRNAs, which may be used in pairs and find utility in host cells such as, but not limited to, the prokaryotic cells of the invention.

Abstract: The invention relates to prokaryotic cells for the production of polymers containing non-canonical amino acids, and to methods for making said cells. The invention also relates to newly obtainable polymers as produced by the cells of the invention. In addition, the invention relates to new orthogonal aminoacyl-tRNA synthetases (aaRSs) and orthogonal tRNAs, which may be used in pairs and find utility in host cells such as, but not limited to, the prokaryotic cells of the invention.

Abstract: A write protect device for a computer comprising a hardware circuit with a switch connected to an internally installed circuit card which has cable connections between data storage device drives and a drive controller cable, the circuit card intercepting control lines used for drive selection and control. The switch is connected to inputs of a latch circuit which, in one position of the switch, generates *READONLY and READONLY signals at outputs of the latch circuit and, in a second position, *DISABLE and DISABLE signals at other outputs. To enter a read only mode, the circuit card includes an inverter and a NAND gate in a *WRITE GATE line to the data storage device drives with one input of the NAND gate being connected to the *READONLY line from the latch circuit which will prevent any *WRITE GATE signal from reaching the data storage device drives when the *READONLY line is activated.