Abstract: A metastable ? titanium alloy is provided, which includes, by weight percent, between 24 and 45% niobium, between 0 and 20% zirconium, between 0 and 10% tantalum and/or between 0 and 1.5% silicon and/or less than 2% oxygen, said alloy having a crystallographic structure containing: a mix of austenitic phase and alpha phase; and a presence of omega phase precipitates the volume fraction of which is less than 10%. Also provided is a timepiece spring made from such an alloy and a method for producing such a spring.

Abstract: A method for managing the file system of a computer terminal having a local memory, connected to a network comprising at least one remote storage device, comprising steps for periodically calculating the local or remote addressing of a digital file to be recorded, read or modified based on a periodically recalculated law, wherein said step of calculating the addressing is based on metadata present in said digital file to be processed, the access history of said file to be processed and the local tree structure of the files, said law is determined from a reference law, recalculated in the background, by processes based on a user's usage, to control the copying of a remote file to the local memory before access to said file is requested, and to erase local files for which the said law determines a usage indicator below a threshold value.

Abstract: A method for managing the file system of a computer terminal having a local memory, connected to a network comprising at least one remote storage device, comprising steps for periodically calculating the local or remote addressing of a digital file to be recorded, read or modified based on a periodically recalculated law, wherein said step of calculating the addressing is based on metadata present in said digital file to be processed, the access history of said file to be processed and the local tree structure of the files, said law is determined from a reference law, recalculated in the background, by processes based on a user's usage, to control the copying of a remote file to the local memory before access to said file is requested, and to erase local files for which the said law determines a usage indicator below a threshold value.