Few physicians will argue against the statement that blood transfusions carry certain risks. There is also little debate over the fact that they can benefit those with hemorrhage or non-functioning bone marrow. Most of the salient debate in the literature centers on the benefits/risk ratio of blood component therapy. Besieged with repeated studies on restrictive vs. liberal transfusion, the cli...

A biopotential amplifier for single supply operation is presented. It uses a Driven Right Leg Circuit (DRL) to drive the patient's body to a DC common mode voltage, centering biopotential signals with respect to the amplifier's input voltage range. This scheme ensures proper range operation when a single power supply is used. The circuit described is especially suited for low consumption, batte...

This paper presents a quantitative modeling of referential coherence by which conversation systems measure the smoothness of discourse. Investigations of the corpora show that referential coherence depends on languages or genres of discourse. Our goal is to establish a quantitative model that can be statistically adapted to various languages. Centering theory explains referential coherence by u...

Conventional concentrically-braced frame (CBF) systems have limited drift capacity before brace buckling and related damage leads to deterioration in strength and stiffness. Self-centering concentrically-braced frame (SC-CBF) systems have been developed to increase drift capacity prior to initiation of damage and minimize residual drift. SC-CBFs differ from conventional CBFs in that the SC-CBF ...

Being able to effectively explore our visual world is of fundamental importance, and it has been suggested that the straight-ahead gaze (primary position) might play a special role in this context. We employed fMRI in humans to investigate how neural activity might be modulated for saccades relative to this putative default position. Using an endogenous cueing paradigm, saccade direction and or...