Previous crystal structures of the myosin head have shown two different conformations, postulated to be the beginning and the end of the actomyosin power stroke. A new crystal structure reveals a dramatically different conformation; but how does this conformation fit into the force-generating cycle of actomyosin interactions?

to the size of a large cocoa-nut, and about four pints of urine were drawn off. Paraplegia was said to have commenced immediately after the fall. The fracture was situated about the 10th dorsal vertebra, where the prominence was seen, and the spot was tender to pressure. It looked like a case of fracture-dislocation, produced by indirect violence from fall. No hyperaasthesia wag observed at the...

This paper introduces a method for automatic extraction of buildings in aerial images. We first present a method based on rectangular buildings, which are the most common constructions. After a rough segmentation, we estimate a criterion of similarity of each region with the best matching rectangle. Fur buildings of complex shapes, we introduce an iterative wag to divide a region in order to op...

The first accurate measurement of an intermolecular vibration of the water dimer is reported. Five vibration-rotation-tunneling (VRT) bands of the perdeuterated isotope, located near 84 cm-’ , have been assigned to the A 1 /E/B, tunneling components of the K, = O-0 and K, = l-0 subbands. The vibration involves large amplitude motion of the hydrogen bond acceptor and is assigned as the vs accept...

Abstmct. Wagner’s theorem (any two maximal plane graphs having p vertices are equivalent under diagonal transformations) is extended to maximal torus graphs, graphs embedded in the torus with a maximal set of edges present. Thus any maximal torus graph havingp vertices may be diagonally transformed into any other maximal torus p;aph having p vertices. As with Wag mr’s theorem, a normal form rep...

BACKGROUND/AIMS Intraperitoneal free cancer cells are associated with a higher risk of recurrence and a poorer prognosis in colorectal surgery. Tumour recurrence may occur early after surgery. One potential mechanism is the ability of peritoneal lesions to attract tumour cells. METHODS In Wag-Rija rats, the parietal peritoneum was resected on a defined area, a corresponding control area was m...

Our web user prooles consist of Page Interest Estimators (PIE's) and Web Access Graphs (WAG's). We discuss a non-invasive approach to estimating the user's interest of a web page without directly asking the user. A time and space eecient method is proposed for locating multi-word phrases to enrich the common bag-of-words representation for text documents. PIE's are then learned to predict the u...