Abstract: A system and method for monitoring the running technique of a user undertaking a physical activity is described. The system comprises: a garment worn by the user incorporating a sensor for the detection of a parameter relating to the movement of the pelvis of the user; a processing unit configured to receive information about the parameter from the sensor, to compare the parameter with an aspect of a biomechanical model, and to determine if a feedback response is required; and means for providing the feedback response to the user. The method comprises the steps of: measuring a parameter relating to the movement of the pelvis of the individual; comparing the parameter with a biomechanical model to determine whether a feedback response is required and providing a feedback response if required.

Abstract: A probabilistic method of detecting viral intrusion into an original computer file is disclosed. In the method, a protection file is first created. In the preferred embodiment, the protection files is created by generating a test string. The test string is compared to the original computer file and is discarded in the event of a match. The test string is kept in the event of a non-match. The protection file is created by storing a plurality of non-matching test strings. In the detection stage, the file to be screened for possible viral infection is compared to each of the test strings of the protection file. The computer file being screened is determined to be probabilistically free of a viral infection if all of the test strings in the protection file do not match the file being screened. However, in the event of a match between a test string and the file being screened, then a change in the file being screened is detected.

Abstract: A probabilistic method of detecting viral intrusion into an original computer file is disclosed. In the method, a protection file is first created. In the preferred embodiment, the protection files is created by generating a test string. The test string is compared to the original computer file and is discarded in the event of a match. The test string is kept in the event of a non-match. The protection file is created by storing a plurality of non-matching test strings. In the detection stage, the file to be screened for possible viral infection is compared to each of the test strings of the protection file. The computer file being screened is determined to be probabilistically free of a viral infection if all of the test strings in the protection file do not match the file being screened. However, in the event of a match between a test string and the file being screened, then a change in the file being screened is detected.