Abstract: An attachment indexing apparatus which performs the steps of indicating an objective indexing position angle of an attachment by an indexing position angle indicating means 1, detecting the present position angle by a position detecting means 2, comparing the objective indexing position angle with the present position angle by an angle comparing means 3, determining the indexing rotation direction of the attachment by an indexing rotation direction determining means 4 in accordance with the compared result, calculating an indexing rotation angle of the attachment from the angle compared result and the indexing rotation direction by an indexing rotation angle calculating means 5, and indexing and rotating the attachment in accordance with the determined indexing rotation direction and the calculated indexing rotation angle.

Abstract: Methods are provided for the replication and amplification of RNA sequences by thermostable DNA polymerases. Reverse transcription of RNA is catalyzed by, for example, 92 kDa Taq, 64 kDa Taq, and Tth DNA polymerase. Reverse transcription is coupled to PCR amplification in a one enzyme procedure using a thermostable polymerase.

Abstract: A small and compact operator held shoulder support to stabilize small video cameras.The major elements of this invention are: a camera mounting body which attaches to, and fits directly beneath, a camcorder, and a shoulder support member designed to retract within the mounting body for maximum compactness. The stabilizer includes a self-executing retentive mechanism utilizing a leaf spring and a cam which automatically and securely holds the support arm in either the extended or retracted position. This self-acting retentive feature relieves the operator from fumbling with locking screws or other devices common in other collapsible stabilizers. The camera mounting body includes finger grips on each side to facilitate the use of the operator's second hand to further steady the camera. Further, the stabilizer includes an adjustment screw to raise or lower the elevation of the extended shoulder support for better eye-to-eyepiece alignment.