Three experiments offered participants the opportunity to undertake an activity that had long-term benefits but either small or large short-term costs. The experiments investigated how self-control efforts to undertake the activity are affected by real or primed externally imposed controls. Two forms of self-control were assessed: bolstering the value of the offered activity and self-imposed pe...

background: we aimed to identify the role of sirt 6 gene polymorphism rs350846 in human longevity. methods: sirt 6 c/g genotypes were determined using taqman snp genotyping assays in 169 long-lived inhabitants (lg group aged 90-110 yr), 158 healthy internal controls (internal control group; aged 26-82 yr) and 176 healthy external controls (external control group; aged 20-82 yr) without a family...

OF DISSERTATION Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy Engineering The University of New Mexico Albuquerque, New Mexico

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A network of coupled chaotic oscillators can switch spontaneously to a state of collective synchronization at some critical coupling strength. We show that for a locally coupled network of units with coexisting quiescence and chaotic spiking states, set slightly below the critical coupling value, the collective excitable or bistable states of synchronization arise in response to a stimulus appl...

Dogs with electrodes implanted in the anterior forebrain region were successfully trained to leverpress for brain stimulation reward upon the presentation of a 1000 Hz tonal conditioned stimulus and to withhold responding during its absence and upon a 2000 Hz tonal discriminative stimulus. The conditioned response extinguished upon removal of reward and was promptly restored when reward became ...

We investigate here how the geometric control theory of Basile, Marro and Wonham can be obtained in a Hilbert space context, as the byproduct of the factorization of a spectral density with no zeros on the imaginary axis. We show how stabilizable and controllability subspaces can be obtained as images of orthogonal projections of coinvariant subspaces onto a semiinvariant (markovian) subspace o...