Strand Displacement Amplification has been adapted to reverse transcription amplification of RNA targets. The method of the invention is referred to as reve rse transcription SDA (rtSDA) and may be performed as a two-step process or as a one -step process in which cDNA copies of an RNA target sequence are generated and amplifi ed concurrently. In the one-step process, rtSDA reaction conditions are...

A data communication method in which transmission/receiving is performed for each frame according to an unbalanced half-duplex high-level data link control communication method, and between one and the other stations, comprises the step of: transferring transmission right to the other station, when the one station receives a frame, and the received frame is a transmission right transferring frame ...

A new family of phospholes having a metalloid bridge to a cyclopentadienyl group is prepared by reacting an organometallic cyclopentadienyl reagent with a "halogenated phosphole" (having a halogen or pseudohalogen group). The new phospholes may be used to prepare organometallic phospholyl complexes. Group 4 metal complexes of these phospholes are excellent polymerization catalysts, especially for ...

A transdermal introducer assembly is provided for quick and easy transcutaneous placement of a medical tube on a patient with reduced patient discomfort. The introducer assembly comprises a medical tube segment defining a hollow lumen extending between a distal end for placement into the subcutaneous tissue and a proximal end disposed outside the patient. The tube segment is assembled in side-by-s...

An object of the invention is a method of measuring neighbouring cells in a TDMA cellular radio network using time hopping. A base station sends common control channels (CCCH) in at least one time slot of a TDMA frame down-link to a subscriber terminal. The subscriber terminal measures a neighbouring cell from the at least one time slot of the TDMA frame, the slot containing a common control chann...

A user terminal sends a resource reservation request message in which time information indicative of time to perform a communication is designated to a switching node to which the self user terminal is linked. The switching node manages a reservation state of each of resources which can be used by the self switching node among resources of a network together with time information indicative of tim...

Lures or trolling spoons that have become stuck on the bottom of a lake etc. are retrieved by using a device which lowers a strong line down to the lure or spoon. Once this secondary line has been passed around the lure or spoon it can be pulled hard to dislodge the lure or spoon from the bottom for retrieval.

A helical antenna comprising a cylindrical dielectric member 1, four spiral conductors 2a to 2d which are wound around the outer wall of the cylindrical dielectric member 1, four spiral conductors 3a to 3d which are attached to the inner wall of the cylindrical dielectric member 1, and power supply circuits 4, 5 for supplying high-frequency power to the spiral conductors 2a to 2d and the spiral co...