Abstract: Provided herein are compositions comprising recombinant polyclonal proteins (RPPs) derived from mammalian plasma cells and plasmablasts. Also provided are methods of using the RPPs.

Abstract: Matable electrical connectors are protected against damage from excessive external force while they are reliably mated under normal conditions. One of the connectors 10 has a pair of latch devices 40a ,40b which are received in a pair of latch receiving recesses 23a ,23b in a connector housing 20. The latch devices 40 have resilient circular tongues 44 which are received in the recesses 23 with a controllable tensile force so that the latchable electrical connector 10 can be unmated from a matable connector 10' without manually unlatching the latch devices 40.

Abstract: A straddle connector avoids scraping off the solder from the conductive pads by the connection sections of electrical contacts during the connection of the connector to a circuit board. The straddle connector 10 comprises a housing 20 having an opening 21, and a separator 30 which is pushed by an edge 52 of the circuit board 50 when the latter is inserted in the opening 21. Connection sections 41 of the contacts 40 arranged in two rows along the inner walls of the opening 21 of the housing 20 are in contact with cam surfaces 31, 32 of the separator 30 which establishes a gap between opposing connection sections 41 during the insertion of the circuit board 50. After the insertion is completed, the gap between the connection sections 41 becomes smaller than the thickness of the circuit board 50, and the connection sections are applied to the solder-coated conductive pads 51 located on the surfaces of the circuit board at an appropriate pressure without scrapping solder from the conductive pads 51.