A vision of the future where the latest Silicon Valley tech meets cutting-edge genetics. Decoding the World is a buddy adventure about the quest to live meaningfully in a world with such uncertainty. It starts with Po Bronson coming to IndieBio. Arvind Gupta created IndieBio as a laboratory for early biotech startups trying to solve major world problems. Glaciers melting. Dying bees. Infertility. Cancer. Ocean plastic. Pandemics. As they travel around the world, finding scientists to join their cause, the authors bring their first-hand experience to the great mysteries that haunt our future. Natural resource depletion. Job-taking robots. China's global influence. Decoding the World is the kind of book you get when you give two guys $40 million, a world full of messy big problems, a genetics laboratory to play in, and a set of Borges' collected works. After looking through their lens, you'll never see the world the same.

A vision of the future where the latest Silicon Valley tech meets cutting-edge genetics. Decoding the World is a buddy adventure about the quest to live meaningfully in a world with such uncertainty. It starts with Po Bronson coming to IndieBio. Arvind Gupta created IndieBio as a laboratory for early biotech startups trying to solve major world problems. Glaciers melting. Dying bees. Infertility. Cancer. Ocean plastic. Pandemics. As they travel around the world, finding scientists to join their cause, the authors bring their first-hand experience to the great mysteries that haunt our future. Natural resource depletion. Job-taking robots. China's global influence. Decoding the World is the kind of book you get when you give two guys $40 million, a world full of messy big problems, a genetics laboratory to play in, and a set of Borges' collected works. After looking through their lens, you'll never see the world the same.

The papers in this volume were presented at the Sixth Workshop on Algorithms and Data Structures (WADS '99). The workshop took place August 11 - 14, 1999, in Vancouver, Canada. The workshop alternates with the Scandinavian Workshop on Algorithms Theory (SWAT), continuing the tradition of SWAT and WADS starting with SWAT'88 and WADS'89. In response to the program committee's call for papers, 71 papers were submitted. From these submissions, the program committee selected 32 papers for presentation at the workshop. In addition to these submitted papers, the program committee invited the following researchers to give plenary lectures at the workshop: C. Leiserson, N. Magnenat-Thalmann, M. Snir, U. Vazarani, and 1. Vitter. On behalf of the program committee, we would like to express our appreciation to the six plenary lecturers who accepted our invitation to speak, to all the authors who submitted papers to W ADS'99, and to the Pacific Institute for Mathematical Sciences for their sponsorship. Finally, we would like to express our gratitude to all the people who reviewed papers at the request of the program committee. August 1999 F. Dehne A. Gupta J.-R. Sack R. Tamassia VI Conference Chair: A. Gupta Program Committee Chairs: F. Dehne, A. Gupta, J.-R. Sack, R. Tamassia Program Committee: A. Andersson, A. Apostolico, G. Ausiello, G. Bilardi, K. Clarkson, R. Cleve, M. Cosnard, L. Devroye, P. Dymond, M. Farach-Colton, P. Fraigniaud, M. Goodrich, A.

Dentistry over the years has been held by lay man as a feeling of dread. This fear of the dentist over the generations has been mainly due to unpleasant experiences incurred by the patient either due to lack of knowledge or of previous dreadful experiences of dental treatment narrated to them. In routine practice we encounter certain circumstances which do not empower the practitioner neither to use general anaesthesia nor it is advised to carry out the procedure under local anaesthesia alone. Thus the lack of understanding of the conveyed verbal massage to these patients made the attempted procedure virtually a nightmare to the attending surgeon which resulted in an inferior surgical outcome. Hence the technique of anaesthesia in the form of CONSCIOUS SEDATION was developed.