In this paper we present a method to calibrate surface photometry of faint sources measured from direct photographic plates such as those of the NGS/POSS and ESO/SRC Sky Survey. This calibration ...

For Linco Diagnostic Services (www.lincodiagnostics.com), quality assurance is critical. Performing functions such as bioanalytical services and clinical trials for pharmaceutical and biotechnology ...

Artel is pleased to announce that its technology was used in a project comparing the photometric and gravimetric methods for micropipette calibrations. Dr. Elsa Batista at the Portuguese National ...

ABSTRACT We consider the effect of stellar activity, as measured by X‐ray luminosity, on metallicities of solar‐neighborhood F and G dwarfs derived from Strömgren photometry. Rocha‐Pinto & Maciel ...