It has been estimated that up to 7,000 patients with Björk-Shiley Delrin (BSD) heart valves may be alive as of January 1996, the range of implant durations being from 15 to 27 years. The clinical question was whether these BSD valves could be expected to continue to function satisfactorily or if prophylactic replacement might be warranted. The data presented in this supplement suggest that clin...

Introduction  As experience grows with in-office balloon sinus dilation (BSD) procedures, technique modifications will evolve to meet specific needs. The major disadvantage with the maxillary BSD procedure is that the intact uncinate process prevents visualization of and instrument access into the maxillary sinus both intraoperatively and postoperatively. Combining a partial or complete uncinec...

Existing studies show that open source projects may enjoy high level of socio-technical congruence despite their open and distributed character. Such observation is yet to be confirmed in the case of forking, where projects originating from the same root evolve in parallel and are typically lead by different development teams. In this paper, we empirically investigate the endogenous and exogeno...

The diagnosis of Bipolar Spectrum Disorders (BSD) given for office visits has risen 40 fold for children and has risen dramatically for adults as well. Some of the growth may have been fueled by re-categorization of individuals who would previously have received diagnoses of major depression along with the widening of diagnostic criteria for BSD. Concomitant with the rise in BSD diagnoses, the ...

Individuals tend to explain the characteristics of others with reference to an underlying essence, a tendency that has been termed psychological essentialism. Drawing on current conceptualizations of essentialism as a fundamental mode of social thinking, and on prior studies investigating belief in genetic determinism (BGD) as a component of essentialism, we argue that BGD cannot constitute the...

Fast Fourier transform (FFT) coprocessor, having significant impact on the performance of communication systems, hasbeen a hot topic of research for many years. The FFT function consists of consecutive multiply add operations over complex numbers, dubbed as butterfly units. Applying floating-point (FP) arithmetic to FFT architectures, specifically butterfly units, has become more popular recent...

The objective of this work was to characterize a novel appearance defect found in Cheddar cheese, heretofore referred to as black spot defect (BSD), and to determine an etiology. Uniformly distributed throughout the cheese mass, BSD appears as small spherical black spots from 0.20 to 4.7 mm in diameter and at an average frequency of about 2 spots per kg of cheese. To date, BSD has only been fou...