X-pire! - A digital expiration date for images in social networks

X-radiography of slabs of the Allende meteorite

X-ray absorption fine structure determination of pH-dependent U-bacterial cell wall interactions

X-Ray Absorption from Cold Gas in the Cluster MS2137.3-2353

X-ray absorption spectroscopic study of new high-Tc superconducting intercalation compound of (HgX2)0.5Bi2Sr2CaCu2Oy(X=Br,I)

X-ray absorption spectroscopy of Co(II) sorption complexes on quartz ( alpha -SiO2) and rutile (TiO2)

X-ray absorption spectroscopy study on the effect of hydroxybenzoic acids on the formation and structure of ferrihydrite

X-Ray Activity in M-Type Giants

X-ray activity in young substellar objects: A brown dwarf binary in Cha I

X-ray analysis of the close binary system FO 15

X-ray and gamma-ray astronomy with NTD germanium-based microcalorimeters

X-ray and gamma-ray observations of solar flares by GRANAT

X-Ray and Gamma-Ray Spectrometer Observations of the Elemental Composition of the Equatorial Region of Mercury: Testing Formation Models

X-ray and GeV Flares in GRB Light Curves

X-Ray and Infrared Emission from Young Stellar Objects near LkHα101

X-ray and Infrared Surveys of Star-Forming Regions

X-ray and Near-Infrared Observations of the Black Hole Candidate GX 339-4

X-Ray and Optical Observations of Nova MUSCAE 1983 during its Nebular Stage

X-Ray and Optical Observations of the Pulsar NP 0532 in the Crab Nebula

X-ray and Optical Studies of SAX J1808.4-3658 in Quiescence