Inspired by the Penrose-Hameroff thesis, we are intuitively led to examine an intriguing correspondence of ‘induction’ (by fields), with the complex phenomenon of (metabolism-sustained) consciousness: Did sequences of associated induction patterns in field-susceptible biomatter have simpler beginnings?

We introduce a new method of Bayesian wavelet shrinkage for reconstructing a signal when we observe a noisy version. Rather than making the usual assumption that the wavelet coefficients of the signal are independent, we assume that they are locally correlated in both location (time) and scale (frequency). This leads us to prefer a novel prior structure to which is, unfortunately, analytically ...

[*] Dr. S. Kowarik,[þ] Dr. A. Gerlach, Dr. S. Sellner Prof. F. Schreiber Institut f€ ur Angewandte Physik, Universit€ at T€ ubingen 72076 T€ ubingen, Germany E-mail: [email protected] Dr. L. Cavalcanti ESRF, 6 Rue Jules Horowitz Boı̂te Postale 220, 38043 Grenoble Cedex 9, France [þ] Present address: Department of Chemistry, University of California, Berkeley CA 94720, USA [**] Acknowle...

The paper is concerned with the Bayesian analysis of point processes which are observed with noise. It is shown how to produce exact samples from the posterior distribution of the unobserved true point pattern given a noisy observation. The algorithm is a perfect simulation method which applies dominated Coupling From The Past (CFTP) to a spatial birth-and-death process. Dominated CFTP is made ...

  Background Tuberculosis (TB) is the second-most common cause of death from infectious disease (after those due to HIV/AIDS). Roughly one-third of the world's population has been infected with M. tuberculosis, with new infections occurring in about 1% of the population each year. People with active TB can infect 10-15 other people through close contact over the course of a year. Materials and ...

This paper studies the implementation of the coupling from the past (CFTP) method of Propp and Wilson (1996) in the setup of two and three component mixtures with known components. We show that monotonic-ity structures can be exhibited in both cases, but that CFTP can still be costly for three component mixtures. We conclude with a simulation experiment exhibiting an almost perfect sampling sch...

Over the past decade or so, a number of software environments have been created to support students engaged in collaborative investigations in science (e.g., Belvedere, CoVis, CSILE, SenseMaker, and WebCamile). These environments have used a variety of representations for recording information such as alternate hypotheses, empirical observations, and evidential relations (e.g., node-link graphs...