We propose a new compression algorithm that is tailored to database applications It can be applied to a collection of records and is especially e ective for records with many low to medium cardinality elds and numeric elds In addition this new technique sup ports very fast decompression Promising application domains include decision sup port systems DSS since fact tables which are by far the la...

The speciication and derivation of substitution for the de Bruijn representation of-terms is used to illustrate programming with a function-sequence monad. The resulting program is improved by interactive program transformation methods into an eecient implementation that uses primitive machine arithmetic. These transformations illustrate new techniques that assist the discovery of the arithmeti...

background: dyslipidemia is considered an independent risk factor for coronary heart disease (chd). in the present study, we examined lipid profiles and paraoxonase 1 (pon1) activity and atherogenic indexes status and the relationship of pon1 activity by high-density lipoprotein (hdl) and atherogenic indexes in chd patients and healthy people. methods: the aim of the study was to compare pon1, ...

New advances in radiation therapy for children allow increased conformability and reduced doses to non-target tissues. We report our experience in treating a 4-year-old child with craniospinal tomotherapy after surgery of the primary tumor, a supratentorial primitive neuroectodermal tumor. The tomotherapy plan was compared with conventional craniospinal irradiation, 3D conformal radiation thera...

espite the unusual length of the current expansion, few economists are ready to repudiate the business cycle. In particular, imbalances in the U.S. economy may develop rather quickly and result in either a slowdown or actual contraction in economic activity. The pattern of recurrent transitions between periods of economic expansion and contraction is of practical interest to consumers, business...

In order to better define the trends and patterns of growth for children of Asian refugee families residing in the USA, we studied the anthropometric data from 12 states collected by the Centers for Disease Control and Prevention (CDC) Pediatric Nutrition Surveillance System (PedNSS) from 1979 to 1993. The Asian refugee children under 5 years of age showed a progressive and significant decline ...

In this paper we present a cost effective method to fabricate flexible, high density piezoelectric tape, and expl'ore its potential application as a new type of Lamb wave phased array for Structural Health Monitoring (SHM) through simulating the Lamb wave propagation generated from single element and multielement arrays. The piezoelectric tape consists of many patterned and densely packed PZT (...

The accuracy of the widely used and International Phonetic Association-sanctioned Chao five-point scale of tonal transcription is examined quantitatively. Perceptually transformed acoustic data are used from two Chinese dialects with complex tone systems, and a measure derived of the conformability of the data using their likelihoods. It is shown that some tones conform well to the model, but o...

Johnna Powell and Anantha Chandrakasan Massachusetts Institute of Technology 50 Vassar St. Rm 38-107, Cambridge, MA 02139 johnna, [email protected] ABSTRACT This paper introduces two antenna designs for Ultra Wideband 3.1-10.6 GHz communication. The primary antenna design is an equiangular spiral slot patch antenna with an outer radius of 2.25 cm. The incorporation of a ground plane enables c...