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Transient wave propagation in reciprocal bi-isotropic media at oblique incidence

In this paper a new wave splitting is suggested that simplifies the analysis of wave propagation in reciprocal bi-isotropic media. Two different methods to solve the scattering problem are analyzed; the invariant imbedding and the Green function approach. The medium is modeled by constitutive relations in the time domain (time convolutions) and the slab is assumed to be inhomogeneous with respect

On-line Techniques to Adjust and Optimize Checkpointing Frequency

Due to increased susceptibility to soft errors in recent semiconductor technologies, techniques for detecting and recovering from errors are required. Roll-back Recovery with Checkpointing (RRC) is one well known technique that copes with soft errors by taking and storing checkpoints during execution of a job. Employing this technique, increases the average execution time (AET), i.e. the expected

Fifteen Years of Democracy Export in the Balkans: Who Did What to Whom?

Conference on Remembering Communism: Celebrating 15 years of Democracy, Thessaloniki, June 4-5, 2004 Fifteen Years of Democracy Export in the Balkans: Who Did What to Whom? by Steven Sampson Department of Social Anthropology Lund University Lund, Sweden Contact: Sampson@Get2net.Dk. This paper argues that we must analyze democracy assistance as a specific practice separate from democracy and dem

A perimetric learner's index

Purpose: Certain individuals need earlier perimetric experience before producing normal fields on automated static threshold perimetry. Mid-peripheral depressions and an unaffected central field are typical findings in such cases. We have devised a learner's index, to detect defect patterns that may be due to such perimetric inexperience. Methods: The central visual field was partitioned into 5 co

Malaysian Educational Politics: ‘English Language Policy’ Implementation and Its Impact to Plural Society

This paper discuss the issue of ‘Teaching Mathematics and Science in English’ Policy implementation in Malaysia, which requires Mathematics and Science to be taught in an English medium in all primary schools, introduced by the government in May 2002. The needs of increased to overcome the declining standard of English contrasted with Malaysian plural society communal identity and mother tongue la