One-Square-Meter Method

SMART-X, “Square Meter, Arcsecond Resolution X-ray Telescope”

SMART-X is a mission concept for a 2.3 m2 e ective area, 0.5 ′′ angular resolution X-ray telescope, with 5 ′ FOV, 1 ′′ pixel size microcalorimeter, 22 ′ FOV imager, and high-throughput gratings.

Statistics at square one: XVIII-Correlation.

to recover. All that one can say is that it is likely that many fail to achieve their full potential in adult life. Recent studies have shown that concentration of care on labour and the first weeks of life, which are the most dangerous times in the life of the baby, has paid dividends. By using continuous monitoring for all women, fetal death during labour can be eliminated. Equally, the provi...

Square Symanzik action to one-loop order

We present the one-loop coefficients for an alternative Symanzik improved lattice action with gauge groups SU(2) or SU(3). Recently a new improved lattice action, called the square Symanzik action, was introduced by adding a 2× 2 Wilson loop to the Lüscher-Weisz Symanzik action [1, 2]: S({ci}) ≡ ∑

One thousand square pixels of canvas

The article describes the background and the detailed history of computer icons featured in graphical interfaces—complete with visual examples and short descriptions of 21 interfaces (from 1981’s Xerox Star to upcoming BeOS Zeta). There is also a breakdown of various icon properties (such as size, style or number of colours). The article ends with a quick glimpse into the future and a conclusio...

Statistics at square one. III--Standard deviation.