Derivative based global sensitivity measures

The method of derivative based global sensitivity measures (DGSM) has recently become popular among practitioners. It has a strong link with the Morris screening method and Sobol' sensitivity indices and has several advantages over them. DGSM are very easy to implement and evaluate numerically. The computational time required for numerical evaluation of DGSM is generally much lower than that for estimation of Sobol' sensitivity indices. This paper presents a survey of recent advances in DGSM concerning lower and upper bounds on the values of Sobol' total sensitivity indices $S\_{i}^{tot}$. Using these bounds it is possible in most cases to get a good practical estimation of the values of $S\_{i}^{tot}$. Several examples are used to illustrate an application of DGSM

Medical Malpractice - Statute of Limitations - Foreign Objects - The Adoption of the Discovery Rule - Legislative or Judicial Prerogative? Melnyk v. Cleveland Clinic

The rationale of the Court was that Melnyk could be distinguished with the recent case of Wyler v. Tripi, which held that a cause of action for medical malpractice accrues at the latest when the physician-patient relationship terminates, and which also recognized the legislature\u27s authority to act in this area, on the basis that Wyler was not a foreign object case. Therefore, the Court felt it need not disturb the Wyler holding and could nevertheless hold the failure to remove the foreign objects in Melnyk was negligence as a matter of law and that equity and public policy require an exception to the general rule. The central issue in Melnyk is at what point in time such a cause of action accrues. Stated more precisely, did the cause of action accrue, and thus the statute commence to run, at the time of the negligent act (i.e., the negligent failure to remove the foreign objects) or did the cause of action accrue at the time the patient discovered the negligent act? The determination of this issue invariably involves the interpretation of the phrase after the cause of action thereof accrued. \u27 The wording of the Ohio statute is similar to statutes of limitations in other jurisdictions in that it is phrased in general terms which require the commencement of the limitation\u27s period merely when the cause of action accrues. The courts have been unable to define that phrase with any consistency

Azimuthal Angular Distributions in EDDE as Spin-Parity Analyser and Glueball Filter for LHC

Exclusive Double Diffractive Events (EDDE) are analysed as the source of information about the central system. Experimental possibilities for exotic particles searches are considered. From the reggeized tensor current picture some azimuthal angle dependences were obtained to fit the data from WA102 experiment and to make predictions for LHC collider.Comment: LaTeX, 20 pages, 7 figures, references are adde

Multidimensional sampling for simulation and integration: measures, discrepancies, and quasi-random numbers

This is basically a review of the field of Quasi-Monte Carlo intended for computational physicists and other potential users of quasi-random numbers. As such, much of the material is not new, but is presented here in a style hopefully more accessible to physicists than the specialized mathematical literature. There are also some new results: On the practical side we give important empirical properties of large quasi-random point sets, especially the exact quadratic discrepancies; on the theoretical side, there is the exact distribution of quadratic discrepancy for random point sets.Comment: 51 pages. Full paper, including all figures also available at: ftp://ftp.nikhef.nl/pub/preprints/96-017.ps.gz Accepted for publication in Comp.Phys.Comm. Fixed some typos, corrected formula 108,figure 11 and table