Stephen J. Klaine

Stephen J. O'Brien

Elusive: Scientists from Paignton zoo in the UK have produced what is thought to be the first photograph of the endangered Ader’s duiker antelope in its native environment in Kenya. (Photo: Paignton Zoo Environmental Park.) were collected to investigate the potential for the use of DNA for establishing the identity of individuals. A satellite collar was also tested for its effectiveness for pot...

The Holocene Stephen J . Burns atmospheric methane

Recent speleothem records from the tropics of both hemispheres document a gradual decrease in the intensity of the monsoons in the Northern Hemisphere and increase in the Southern Hemisphere monsoons over the Holocene. These changes are a direct response of the monsoons to precessiondriven insolation variability. With regard to atmospheric methane, this shift should result in a decrease in Nort...

Stephen A . Della Pietra , Vincent J . Della Pietra

We describe a statistical technique for assigning senses to words. An instance of a word is assigned a sense by asking a question about the context in which the word appears. The question is constructed to have high mutual information with the translation of that instance in another language. When we incorporated this method of assigning senses into our statistical machine translation system, t...

Stephen H Bryant and Stephen F Altschul

The past two years have seen the rapid development of new recognition methods for protein structure prediction. These algorithms ’thread’ the sequence of one protein through the known structure of another, looking for an alignment that corresponds to an energetically favorable model structure. Because they are based on energy calculation, rather than evolutionary distance, these methods extend ...

Andrew B . Bernard , J . Bradford Jensen , Stephen J . Redding and Peter K . Schott Wholesalers and retailers in US Trade