algorithm and makes it possible to handle point set models with millions of sample points. This data structure mixes a kd-tree with the Delaunay triangulation of the selected points enriched with a sparse subset of landmark sample points. This design efficiently responds to the specific spatial location

possible exception. Claims, however, of D–O presence in most remote locations cannot be distinguished from the hypothesis that many regions are just exhibiting temporal variability in climate proxies with approximately similar frequency content. Further suggestions that D–O events in Greenland

surfaces shows that>4 m slip may have occurred rapidly (in less than 3800 years) sometimes between the end of the glaciation and 8800±1900 years ago. This dating, together with the location of some faults far from the deep glacial valleys, suggests that sagging might have been triggered by strong

Following the recent construction of maximal (N = 16) gauged supergravity in three dimensions, we derive gauged D = 3, N = 8 supergravities in three dimensions as deformations of the corresponding ungauged theories with scalar manifolds SO(8, n)/(SO(8) × SO(n)). As a special case, we recover the N = (4,4) theories with local SO(4) = SO(3)L × SO(3)R, which reproduce the symmetries and massless spectrum of D = 6,N = (2,0) supergravity compactified on AdS3×S3. 2001 Elsevier Science B.V. All rights reserved. 1.

ine. Financial support es network funded byan anonymous referee for their valuable comments and suggestions. Any remaining shortcomings are m

Disentangling mark/point interaction in marked-point processes

Microstructural maturation of the human brain from childhood to adulthood

Techniques based on cognitive therapy and electroencephalography (EEG) were used to investigate the predictive utility of EEG alpha power with regard to mood improvement. Controls and individuals with major depression participated in four EEG recording blocks. Blocks 1 and 4 were resting baselines. During Block 2, Ss were asked to think about their ‘‘most troubling life difficulty.’ ’ Next, Ss were introduced to cognitive views of depression and techniques used in cognitive therapy. For Block 3, Ss were asked to use these methods to think again about their life difficulty. Ss who reported greater post- than pre-intervention happiness (i.e., ‘‘Responders’’) exhibited greater overall cortical activity than Nonresponders. Depressed Responders further exhibited a cortical asymmetry of greater right relative to left activity in frontal areas. The predictive utility of EEG is discussed with regard to identifying individuals who show mood improvement following cognitive restructuring.

On low order moments of the homodyned-K distribution

Biological computation of image motion from flows over boundaries