Conserving habitat through voluntary stewardship: does it work?

Effectiveness of voluntary habitat stewardship in conserving grassland: case of operation burrowing owl in Saskatchewan.

There have been no published performance evaluations of nongovernmental, voluntary habitat stewardship programs. The Operation Burrowing Owl (OBO) stewardship program, initiated in 1987, was evaluated for its effectiveness in conservation of grassland habitat during 1986-1993. The 108 OBO sites from 1987 to 88 and 98 randomly selected non-OBO sites that were grassland in 1986 in the Regina-Weyb...

Does It Work?

T he study reported by Hess et all in this issue of Circulation presents a timely opportunity to discuss several issues that are directly relevant to use of angiographic methods for estimating myocardial perfusion. These issues are motivation for use of angiographic methods, limitations of the gold standard used, limitations of the angiographic method, limitations of the conceptual model used a...

Incremental Inductive Verification , Does It Work ? Does It Scale ?

Powerful Multicore platforms are now widespread and promise to naturally scale performance by running programs in parallel. Except for optimizing one’s code, this became the only way to speed up programs. As a result, a great amount of work focuses on coming up with clever ways to run programs in parallel. This thesis explores the applicability and the performance of an incremental verification...

Allergen avoidance: does it work?

The first recorded example of allergen avoidance in the treatment of allergic disorders dates from the 16th century. The Italian physician Gerolamo Cardano (1501-1576) was invited to Scotland by John Hamilton, Archbishop of St Andrews (and brother of the Regent), to give advice on the treatment of his asthma. Cardano recommended that the Archbishop should get rid of his feather bedding, which w...

Spirometric screening: Does it work?