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We present evidence that the number of string/M theory vacua consistent with experiments is finite. We do this both by explicit analysis of infinite sequences of vacua and by applying various mathematical finiteness theorems. bacharya at ictp.it, mrd at physics.rutgers.edu

Recent developments in the study of the laser bending process are reviewed and presented to obtain new perspectives along the lines of dimensional characteristics and mechanical properties of the formed parts. Both numerical and experimental results are described and compared. The dimensional characteristics examined include bending angle variation and bending edge curving. The mechanical prope...

seifert fibre groups (sf-gps) have been introduced and their first derived groups have been worked out in an earlier paper by the author [2,3]. now we aim to prove that they are residually soluble and residually finite.

In survival analysis, median residual lifetime is often used as a summary measure to assess treatment effectiveness; it is not clear, however, how such a quantity could be estimated for a given dynamic treatment regimen using data from sequential randomized clinical trials. We propose a method to estimate a dynamic treatment regimen-specific median residual life (MERL) function from sequential ...

A theory is presented for the measurement of regurgitant flow across an incompetent valve hy injection of indicator distal to the valve and recording of time concentration curves proximal and distal to the valve. The conditions which must be met for valid measurements are examined and demonstrated by a functioning mechanical model of the heart. The method is valid regardless of the size of the ...

Starting from an GMRES error estimate proposed by Elman in terms of the ratio of the smallest eigenvalue of the hermitian part and the norm of some non-symmetric matrix, we propose some asymptotically tighter bound in terms of the same ratio. Here we make use of a recent deep result of Crouzeix et al. on the norm of functions of matrices.