The apparition of some laws that make the electronic signature (e-signature) legally equivalent to handwritten signature (under some circumstances) has favoured its use in different fields such as e-commerce, e-government, etc. In these fields, some signed documents have to be stored and remain valid over long periods of time. For this kind of e-signatures some formats such as CAdES and XAdES h...

There is growing recognition of the importance and potential benefit of information technology and electronic medical records in providing quality care for women. Incorporation of obstetrician-gynecologist-specific requirements by electronic medical record vendors is essential to achieve appropriate electronic medical record functionality for obstetrician-gynecologists. Obstetricians and gyneco...

The sequential design method is presented as a complementary tool of the systematical synthesis procedure that allows to define a clear connection among the different types of distillation column sequences. In particular, the connection with the simple column subspace is considered, since this subspace represents the comparison reference for all the alternatives considered. The sequential desig...

For a library to be able provide information services and fulfill its function as a knowledge convergence center capable of responding to various information demands, the development of next-generation information systems based on the latest information and communication technology is needed. The development of mobile information services using portable devices such smart phones and tablet PCs ...

In this paper we discuss protocols that allow a user to subscribe to an electronic service, and then anonymously access the service. That is, the provider does not know who accesses the service at any time, and moreover he cannot link two accesses to the same person. On the other hand, the supplier obtains proof that the user is authorized to access the service. We formally define the problem, ...