The observational requirements of the SPECTRA Mission.

The Observational-Inductive Framework for Science

The Observations of the Radio Storms on Jupiter with the Use of the SISI Radio-Telescope

The observed metallicity dependence of the mass loss of O and early-B stars

The observed relationship between the south pole 225-GHz atmospheric opacity and the water vapor column density

The obtaining relative position of lunar centre masses and centre of the figure in selenocentric catalogues

The occultation of MKE 31 by Neptune on September 12, 1983

The occurrence and significance of lead isotopes in pelagic sediments

The Occurrence of Dwi-Manganese (At. No. 75) in Manganese Salts

The occurrence of F-scattering in the decameter range

The occurrence of polycyclic sesqui-, tri-, and oligoterpenoids derived from a resinous polymeric cadinene in crude oils from southeast Asia

The occurrence of sporadic-E and noctilucent clouds, and correlations with meteor and auroral activities, May to August, 1977 - 1991.

The occurrence of sulfur and phosphorus within bacterially derived crystalline and pseudocrystalline octahedral gold formed in vitro

The occurrence of triglycerides in Namibian Shelf diatomaceous ooze

The occurrence of zinc in Antarctic ancient ice and recent snow

The oceanic crust in 3D: Paleomagnetic reconstruction in the Troodos ophiolite gabbro

The Octagon Abstract Domain

The odd nitrogen mixing ratio in the stratosphere

The ODDI Odyssey: Developing and Integrating Operations for the International Space Station

The odyssey of the Cache Creek terrane, Canadian Cordillera: Implications for accretionary orogens, tectonic setting of Panthalassa, the Pacific superwell, and break-up of Pangea