793 research outputs found
The Hi-NOON neural simulator and its applications to animal, animat and humanoid studies
No full textThis paper describes the Hi-NOON neural simulator, originally conceived as a general-purpose, object-oriented software system for the simulation of small systems of biological neurons, as an aid to the study of links between neurophysiology and behaviour in lower animals. As such, the artificial neurons employed are spiking in nature: to effect an appropriate compromise between computational complexity and biological realism, modeling was at the transmembrane potential level of abstraction. Further, since real neural systems incorporate different types of neurons specialized to some what different functions, the software was written to accommodate a non-homogeneous population of neurons. Hi-NOON has been used in animat (crick et phono-taxis) and biologically-based robot studies. In particular, it was employed to implement the nervous system of our ARBIB robot. A simple model of synaptogenesis has been added so improving the stability of its learning in the light of the stability-plasticity dilemma, and as a mechanism for long-term memory. The efficacy of the simulator is illustrated with respect to some recent applications to situated systems studies. Now that Hi-NOON has been expanded to simulate large nervous systems in a concurrent environment, it can be applied to humanoid robotics in the future
Artysta nowoczesny jako T.W.
No full textThe author analyses archival materials from IPN (Instytut Pamięci Narodowej – The Institute of National Remembrance) concerning a painter nicknamed ‘Tadeusz’. In 1973–1979, ‘Tadeusz’ was active as secret collaborator (t.w. – ”tajny współpracownik”) of SB (Służba Bezpieczeństwa – Interior Ministry Security Service). IPN documents contribute to the mapping of Polish art of the 1970s only to a limited extent. Nevertheless, they can form a basis for posing questions on artists’ collaborations with SB. The author claims that the acceptance of collaboration with SB was grounded in Tadeusz’s understanding of art based on the Enlightenment concept of modern art. He argues with a commonly accepted view that experimental art was persecuted in the Polish People’s Republic in the 1960s and the 1970s, and that the communist government showed any particular interest in fine art. In the annex, the author provides a full list of names found in Tadeusz’s files
[T.W Brown read-in with children and other black women authors]
No full textVideo footage from The Black Academy of Arts and Letters recorded during a library event with author T.W. Brown in February of 1989. The footage shows children seated in a library listening as she reads from a book in her hands. The event includes two other black women authors
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