Objectives To describe techniques for retrieval and appraisal used by consumers when they search for health information on the internet. Design Qualitative study using focus groups, naturalistic observation of consumers searching the world wide web in a usability laboratory, and in-depth interviews. Participants A total of 21 users of the internet participated in three focus group sessions. 17 ...

We show that the “stabilization” of any countable ergodic probability measure preserving (p.m.p.) equivalence relation which is not Schmidt, i.e. admits no central sequences in its full group, always gives rise to a stable with unique decomposition, providing first non-strongly such examples. In proof, we moreover establish new local characterization Schmidt property. also prove some structural...

Introduction We have all heard the old joke of school being all about the three “R’s”, Reading ‘Ritin and ‘Rithmatik, but because of increasing class sizes and reported lack of instruction time, writing has been passed over for the more “important” subjects. The advent of computers and the increasing ease of word processing have given teachers the ultimate excuse, but most beginning composition...

Ten new species of the genus Chydaeus Chaudoir, 1854 are described: C. dissimilis sp. n. (the bedeli species group) from the Doi Inthanon Mountain, Chiang Mai Province, Thailand; C. shaanxiensis sp. n. (the kasaharai species group) from the Daba Shan Mountain Range, southern Shaanxi, China; C. kabaki sp. n. (the kasaharai species group) from southern Sichuan, China; C. weishanensis sp. n. (the ...

Deformable template representations of observed imagery, model the variability of target pose via the actions of the matrix Lie groups on rigid templates. In this paper, we study the construction of minimum mean squared error estimators on the special orthogonal group, SO(n), for pose estimation. Due to the nonflat geometry of SO(n), the standard Bayesian formulation, of optimal estimators and ...

Lind and Schmidt have shown that the homoclinic group of a cyclic Z algebraic dynamical system is isomorphic to the dual of the phase group. We show that this duality result is part of an exact sequence if k = 1. The exact sequence is a well known algebraic object, which has been applied by Schmidt in his work on rigidity. We show that it can be derived from dynamical considerations only. The c...

We revise the large Neotropical genus Operclipygus Marseul, in the histerid tribe Exosternini (Histeridae: Histerinae). We synonymize 3 species, move 14 species from other genera, sink the genus Tribalister Horn into Operclipygus, and describe 138 species as new, bringing the total to 177 species of Operclipygus. Keys are provided for the identification of all species, and the majority of the s...

Abstract We prove an extension of the Moore–Schmidt theorem on triviality first cohomology class cocycles for action arbitrary discrete group measure space and with values in compact Hausdorff abelian group. The proof relies a ‘conditional’ Pontryagin duality spaces abstract measurable maps.