A. Flores

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Recent i m p r o vements in LANs make network of workstations a good alternative to traditional parallel computers in some applications. MPI (Message Passing Interface) standard library implementation for network of workstation holds great promise in providing both portabil-ity and performance. However, some authors point out if this hardware improvements(More)
In the motor system, the periodic stimulation of one Ia-afferent input produces reflex muscle contractions at the input frequency. However, we observed that when two Ia monosynaptic reflex-afferent inputs are involved the periodic muscle contractions may occur at a frequency physically not present in the afferent inputs even when these inputs are(More)
BACKGROUND Atrial fibrillation is associated with higher mortality. Identification of causes of death and contemporary risk factors for all-cause mortality may guide interventions. METHODS AND RESULTS In the Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial(More)
The development of a patient-centered approach to medicine is gradually allowing more patients to be involved in their own medical decisions. However, this change is not happening at the same rate in clinical research, where research generally continues to be carried out on patients, but not with patients. This work describes the why, when, and how of more(More)
Recent improvements in LANs make network of workstations a good alternative to traditional parallel computers in some applications. However, in this platform the communication performance is over two orders of magnitude inferior to state-of-art multiprocessors. Currently networking technologies have put the pressure in the software overhead. Because of(More)
Congestion in interconnection networks due to the presence of hot spo t s i s a n i m p ortant and diicult problem that occurs in parallel machines. This problem has been studied in depth and diierent solutions for the case of multiprocessors with shared memory have been proposed. Current trends point towards the implementation of systems with physically(More)
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