This Letter summarizes recent measurements, published in detail in another journal, which are of interest for extremely stable structures such as telescopes and optical resonators. A number of materials are presently available whose dimensions are exceedingly stable against temperature changes. These include Owens-Illinois Cervit, Corning ULE, Schott Zerodur, and various types of Invar. It is o...

A low incidence of coronary stent infections has been described in literature, although severe complications such as purulent pericarditis and endarteritis, have been reported. Currently, infection definition criteria or protocolized clinical strategies do not exist. Therefore, we report a case of coronary stent infection associated with pericarditis and we review similar cases in the literatur...

ASN Ambient seismic noise BiCMOS Bipolar junction complementary metal-oxide-semiconductor CCN Cloud condensation nuclei CE Capillary electrophoresis CNT Carbon nanotube CTE Coefficient of thermal expansion DAP Diallyl phthalate DOSY Diffusion ordered spectroscopy FID Flame ionization detector FT-ICR Fourier transform-ion cyclotron resonance GaAs Gallium arsenide GC Gas chromatography InP Indium...

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Objectives 1. To identify organisations involved in gas explosion research in the U.K. and Europe. 2. To survey these organisations, to determine their areas of current and proposed work. 3. To collate their responses in a report, which also provides an up to date literature review of gas explosion modelling. 4. To critically assess the strengths and weaknesses of available gas explosion models...

Over the last ten years, there have been numerous applications of evolutionary al-gorithms to a variety of scheduling problems. Like most other research on heuris-tic scheduling, the primary aim of the research has been on deterministic formula-tions of the problems. This is in contrast to real world scheduling problems whichare usually not deterministic. Usually at the time the...

Many different devices and cycle arrangements can be used in part.ially cooling gas for helium liquefaction . With the exception of the Simon freeexpansion type liquefier , howeverwhich is suitable only for small-yield, batch productionall uch arrangements have a final stage at the lowest temperatures, in which a so-called Joule-Thomson proces takes place. This process may be considered to incl...

A 64-year-old man with prostate cancer who recently underwent radical retropubic prostatectomy presented to the emergency department with sudden-onset exertional dyspnea and chest heaviness. On physical examination, he was tachy-cardic with a heart rate of 110 beats per minute, normotensive with a blood pressure of 100/76 mm Hg, and hypox-emic with an oxygen saturation of 88% on room air. Left ...

PROLONGED hypotension may be a consequence of (1) decreased vasoconstrictor tone in the peripheral vasculature, (2) decreased cardiac output, (3) diminished circulating blood volume, (4) excessive vaso-dilator influences in the periphery, or (5) combinations of these factors. In this report two patients with persistent hypotension requiring continuous vasopressor therapy are presented. It was h...

Family, not only in terms of cohabitation of two adults, but in term of intragenerational symbiosys, is formed with the birth of a child (Musek, 1995). Pregnancy and birth are one of the major transitions in the life of a family members; they can promote family’s evolution (Nastran Ule, 1993) however if they represent adaptational stress that family members are unable to cope with, can have har...