Given the growing acceptance of the Internet and Intranet as enterprise application mediums and the need for client-server computing using open solutions, SAS Institute has recognized the need to leverage existing SAS/AF® functionality to Java clients. This paper attempts to explain how technologies developed by SAS Institute allow clients written in Java to exploit the data and compute power o...

Input/Output (I/O) throughput is typically the most important computing aspect of a SAS® environment. Bandwidth requirements ranging from 25MB/sec/core to 135MB/sec/core are common in a high-performance SAS system. Insuring that the storage subsystem can meet the demands of SAS is critical to delivering the performance required by the business and user community. Ideally, SAS administrators cou...

Data sets with cluster structure are very common in practical business and research, one has to take into account the intra-cluster correlation in data analysis. This paper systematically discusses the Huber/White standard error estimate for cluster sampling data in logistic regression, and presents a user-friendly SAS/IML macro procedure which can automatically fit logistic model, calculate ro...

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Abstract Background Up to 40% of patients with severe aortic stenosis (SAS; indexed valve area (AVAi) <0.6 cm2/m2) present low transvalvular mean gradient (MG) despite a normal left ventricular ejection fraction (EF). There is intense debate about the prognostic significance such entity, some referring it as an advanced form disease, others intermediate between moderate and form. Objecti...

This paper presents how a successful SAS/AF application used by scientists and researchers was presented to users through a Windows application for usability and speed whilst retaining the robustness of the SAS 9. SAS Integration Technologies was used to interface the tried and trusted algorithms to a bespoke application developed using Microsoft Visual Basic .NET. This created an interoperable...

PURPOSE The purpose of the study was to: (1) evaluate the subarachnoid space (SAS) width and pial artery pulsation in both hemispheres, and (2) directly compare magnetic resonance imaging (MRI) to near-infrared transillumination/backscattering sounding (NIR-T/BSS) measurements of SAS width changes in healthy volunteers. METHODS The study was performed on three separate groups of volunteers, c...