Learn More
The nucleus HVC (proper name) within the avian analog of mammal premotor cortex produces stereotyped instructions through the motor pathway leading to precise, learned vocalization by songbirds. Electrophysiological characterization of component HVC neurons is an important requirement in building a model to understand HVC function. The HVC contains three(More)
Neural activity within HVC (proper name), a premotor nucleus of the songbird telencephalon analogous to premotor cortical regions in mammals, controls the temporal structure of learned song in male zebra finches (Taeniopygia guttata). HVC is composed of a superficially isomorphic neuronal mosaic, implying that song is encoded in a distributed network within(More)
In this paper, we examine the information content (firm specific) and information transfer (other firm) effects of share buy back announcements using a unique Australian data where the stated reason for the buy back is undervaluation of the firm's stock price. Consistent with the US studies, we find that such share buy back announcements signal positive(More)
The VizEval Suite is an environment designed to support experimentation with and evaluation of program visualization attributes that affect the user's ability to grasp essential concepts. In this paper, we describe the VizEval Suite and an initial experiment conducted both as a test-bed of the VizEval Suite and to study how perceptual/cognitive(More)
Program visualizations have the potential to convey information about the behavior of the programs they depict. However, program visualizations in use vary widely in their ability to convey the desired information. In this work we conduct a study of the " quality " of the visualizations, the ability of those visualizations to present information in a way(More)
Program Visualization refers to the graphical representation of a program in execution. They are used to facilitate better understanding of the underlying algorithm or other program behavior. However, doubts exist about the usefulness of program visualizations and the extent to which the visualizations are employed in practice [6]. Some studies of program(More)
Heme-copper oxidases (HCOs) catalyze efficient reduction of oxygen to water in biological respiration. Despite progress in studying native enzymes and their models, the roles of non-covalent interactions in promoting this activity are still not well understood. Here we report EPR spectroscopic studies of cryoreduced oxy-F33Y-CuBMb, a functional model of(More)
  • 1