Horn versus full first-order: complexity dichotomies in algebraic constraint satisfaction

HORPO with Computability Closure : A Reconstruction

Hospital Acquired Infections: Advantages of a Computerized Surveillance

Hospital Case Cost Estimates Modelling - Algorithm Comparison

Host Galaxies and Cluster Environments of Quasars as Functions of Quasar Optical and Radio Luminosity: Cycle 4 Medium

Host Galaxies and Environments of the Most Massive Black Holes in the Early Universe

Host Galaxies of Hard X-ray Selected Type 2 Active Galactic Nuclei at Intermediate Redshifts

Host Galaxies of Luminous Nearby Quasars

Host Galaxies of Obscured QSOs Identified by 2MASS

Host Galaxies of Reverberation Mapped AGNs

Host Galaxies of Reverberation-Mapped AGNs

Host Galaxy Morphologies and SEDs of High Luminosity AGN

Host galaxy subtraction in differential aperture photometry

Host phase of a strange xenon component in Allende

Host rock compositional controls on zircon trace element signatures in metabasites from the Austroalpine basement

Hosting an `Ask the Astronomer' Site on the Internet

Hosting Byzantine Fault Tolerant Services on a Chord Ring

Hosting the Student Telescope Network First Site

Hosts of Quasars with Opaque Partial Covering

Hot and Cold Gas, Dark Matter, and Heavy Elements in Elliptical Galaxies