Counting angels with DNA

Fair Exchange with Guardian Angels

In this paper we propose a new probabilistic Fair Exchange Protocol which requires no central Trusted Third Party. Instead, it relies on a virtually distributed and decentralized Trusted Third Party which is formalized as a Guardian Angel: a kind of Observer e.g. a tamper proof security device. We thus introduce a network model with Pirates and Guardian Angels which is well suited for Ad Hoc ne...

Angels and Other Servants

In politics as in history, masters accomplish great things, but often, lowly beings such as servants perform those tasks. At times, they subvert them. In science, servant-beings are frequently described as demons and angels. Who are these effective agents? This essay traces parts of the large historical network of persons and places in which ‘little helpers’ service their master’s will. It look...

Angels Without Wings

Finding, Evaluating, and Counting Dna Physical Maps Abstract Finding, Evaluating, and Counting Dna Physical Maps

Finding, Evaluating, and Counting DNA Physical Maps by Lee Aaron Newberg Doctor of Philosophy in Computer Science University of California at Berkeley Professor Richard M. Karp, Chair The International Human Genome Project seeks to analyze the DNA which can be found inside of every cell of every one of us. The goal is to map and sequence the DNA so that the location and chemical encoding of eve...

Counting animal species with DNA barcodes: Canadian insects

Recent estimates suggest that the global insect fauna includes fewer than six million species, but this projection is very uncertain because taxonomic work has been limited on some highly diverse groups. Validation of current estimates minimally requires the investigation of all lineages that are diverse enough to have a substantial impact on the final species count. This study represents a fir...