Abstract: The present disclosure discloses a method for detecting suspicious groups in collaborative stock transactions based on a bipartite graph. The method includes: determining transaction events and suspicious accounts as two different kinds of nodes of the bipartite graph based on historical stock transaction data, and searching for a transaction event and filtering out a suspicious account in an iterative updating loop until a set of transaction events and a set of suspicious accounts have converged; and constructing a collaborative transaction graph among accounts based on the set of transaction events and the set of suspicious accounts that have converged, performing a community division based on the collaborative transaction graph among accounts to determine one or more account communities that perform the collaborative stock transactions, and determining the one or more account communities as the suspicious groups in the collaborative stock transactions.

Abstract: An adjusting distance device using a resilient lead screw automatically includes a pair of split semi-screws which have exterior screw threads resiliently retained in place inside a lead sleeve which have inner screw threads. When the resilient lead screw is in an open status, the threads of the split semi-screws will be in mesh with the threads of the lead sleeve. When the resilient lead screw is a closed status, the threads of the split semi-screws will not be in mesh with the threads of the lead sleeve, thus the lead screw can be rapidly pushed to its working position or retracted to adjust distance rapidly. The lead screw can be centered, engaged, split and self-locked automatically. This device has compact structure, can be used effectively, and can be fabricated relatively small in size. It can be used in vice or jack.

Abstract: Cell-mediated immune response to a papillomavirus infection can be induced by vaccination with DNA encoding papillomavirus E genes. E genes can both prevent the occurrence of papillomavirus disease, and treat disease states. Canine papillomavirus (COPV) E genes which are codon-optimized to enhance expression in host cells are also given.