On an SO(5) unification attempt for the cuprates

In this note we bring out several problems with the SO(5) unification attempt of Zhang [cond-mat/9610140].Comment: 3 pages, latex (revtex

Phase detector assembly Patent

Detector assembly for discriminating first signal with respect to presence or absence of second signal at time of occurrence of first signa

From ZigZag to BigBag: Seeing the Wood and the Trees

This paper reports on a one year speculative research project that sought to test the technical feasibility, practical implications and usability of transforming an XML Encoded Archival Description (EAD) finding aid into an XML ZigZag™ structure and applying a relational browser interface

Lessons Learned from the Pioneers 10/11 for a Mission to Test the Pioneer Anomaly

Analysis of the radio-metric tracking data from the Pioneer 10/11 spacecraft at distances between 20--70 astronomical units (AU) from the Sun has consistently indicated the presence of an anomalous, small, constant Doppler frequency drift. The drift is a blue-shift, uniformly changing with rate a_t = (2.92 +/- 0.44) x 10^(-18) s/s^2. It can also be interpreted as a constant acceleration of a_P = (8.74 +/- 1.33) x 10^(-8) cm/s^2 directed towards the Sun. Although it is suspected that there is a systematic origin to the effect, none has been found. As a result, the nature of this anomaly has become of growing interest. Here we discuss the details of our recent investigation focusing on the effects both external to and internal to the spacecraft, as well as those due to modeling and computational techniques. We review some of the mechanisms proposed to explain the anomaly and show their inability to account for the observed behavior of the anomaly. We also present lessons learned from this investigation for a potential deep-space experiment that will reveal the origin of the discovered anomaly and also will characterize its properties with an accuracy of at least two orders of magnitude below the anomaly's size. A number of critical requirements and design considerations for such a mission are outlined and addressed.Comment: 11 pages, invited talk given at ``35th COSPAR Scientific Assebly,'' July 18-24, 2004, Paris, Franc

On the frequency and transmitted chromosome alterations and gene mutations induced by atomic bomb radiations in maize

Samples of maize seed of the single cross L289 X I205 were placed on some of the ships within the target area at Bikini at the time of the atomic bomb test of July 1, 1946. At about the same time Dr. L. F. Randolph exposed duplicate samples to x-rays at Cornell University. Plantings were made at the California Institute of Technology of both series together with untreated controls. From these plants, sporocyte samples were collected by Dr. Randolph for studies at Cornell University on the visible chromosomal changes induced by the radiations (Randolph, Longley and Li in press). Studies on hereditary effects have been carried on at the California Institute of Technology in cooperation with the United States Department of Agriculture and the Naval Medical Research Section of Operation Crossroads

Perfecting housing finance

Housing - Finance

Bankers acceptances and unconventional monetary policy: FAQs

Acceptances ; Credit

Monetary base

This brief essay is a working draft of an article in preparation for the forthcoming International Encyclopedia of the Social Sciences, 2nd ed., examining the role of the monetary base in monetary economics and monetary policymaking. Comments are welcome.Money supply ; Monetary policy