135,919 research outputs found
Rebecca D. Bullock N.D.
No full textDigital image was created by scanning UMBC-made prints from original Bullock glass negatives.Handwritten in ink in center of verso: 588A Handwritten in ink in bottom left corner of verso: 84-01-588A. 'REBECCA D. BULLOCK' N.D. [c. 1888
Rebecca D. Bullock N.D.
No full textDigital image was created by scanning UMBC-made prints from original Bullock glass negatives.Handwritten in ink in center of verso: 587A Handwritten in ink in bottom left corner of verso: 84-01-587A. 'REBECCA D. BULLOCK' N.D. [c. 1888
Rebecca D. Bullock N.D.
No full textDigital image was created by scanning UMBC-made prints from original Bullock glass negatives.Handwritten in ink in center of verso: 588A Handwritten in ink in bottom left corner of verso: 84-01-588A. 'REBECCA D. BULLOCK' N.D. [c. 1888
Rebecca D. Bullock N.D.
No full textDigital image was created by scanning UMBC-made prints from original Bullock glass negatives.Handwritten in ink in center of verso: 587A Handwritten in ink in bottom left corner of verso: 84-01-587A. 'REBECCA D. BULLOCK' N.D. [c. 1888
The role of logistic constraints on termite construction of chambers and tunnels
No full textIn previous models of the building behaviour of termites, physical and logistic constraints that limit the movement of termites andpheromones have been neglected. Here, we present an individual-based mo del of termite construction that includes idealized constraints on the diffusion of pheromones, the movement of termites, and the integrity of the architecture that they construct. The model allows us to explore the extent to which the results of previous idealized models (typically realised in one or two dimensions via a set of coupled partial differential equations) generalize to a physical, 3-D environment. Moreover we are able to investigate new processes and architectures that rely upon these features. We explore the role of stigmergic recruitment in pillar formation, wall building, and the construction of royal chambers, tunnels and intersections. In addition, for the first time, we demonstrate the way in which the physicality of partially built structures can help termites to achieve efficient tunnel structures and to establish and maintain entrances in royal chambers. As such we show that, in at least some cases, logistic constraints can be important or even necessary in order for termites to achieve efficient, effective constructions
Rh. D, Franck & John, July 9, 1898
No full textDigital image was created by scanning UMBC-made prints from original Bullock glass negatives.Handwritten in ink in center of verso: 453 Handwritten in ink in bottom left corner of verso: 84-01-139 'RH. D, FRANCK & JOHN' JULY 9, 1898 Handwritten in blue in above previous: Richard Aunt Downin
Rh. D, Franck & John, July 9, 1898
No full textDigital image was created by scanning UMBC-made prints from original Bullock glass negatives.Handwritten in ink in center of verso: 453 Handwritten in ink in bottom left corner of verso: 84-01-139 'RH. D, FRANCK & JOHN' JULY 9, 1898 Handwritten in blue in above previous: Richard Aunt Downin
Prospects for large-scale financial systems simulation
No full textAs the 21st century unfolds, we find ourselves having to control, support, manage or otherwise cope with large-scale complex adaptive systems to an extent that is unprecedented in human history. Whether we are concerned with issues of food security, infrastructural resilience, climate change, health care, web science, security, or financial stability, we face problems that combine scale, connectivity, adaptive dynamics, and criticality. Complex systems simulation is emerging as the key scientific tool for dealing with such complex adaptive systems. Although a relatively new paradigm, it is one that has already established a track record in fields as varied as ecology (Grimm and Railsback, 2005), transport (Nagel et al., 1999), neuroscience (Markram, 2006), and ICT (Bullock and Cliff, 2004). In this report, we consider the application of simulation methodologies to financial systems, assessing the prospects for continued progress in this line of research
Bullock, Dr. Robert, October 14, 2019 [Interview]
No full textDr. Robert Bullock was interviewed by Devin McKinney on October 14, 2019, about his student years at Gettysburg College and his military experience during the Vietnam War.Barnes, Robert D.; Schildknecht, Calvin E.;Gen. Willard S. Paul Years
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