5689 to 5700 of 14064 results
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Characterization of a novel N-acylhomoserine lactonase, AidP, from Antarctic Planococcus sp.
Read more of: Characterization of a novel N-acylhomoserine lactonase, AidP, from Antarctic Planococcus sp.N-acylhomoserine lactones (AHLs) are well-studied signalling molecules produced by some Gram-negative Proteobacteria for bacterial cell-to-cell communication or quorum sensing. We have previously demonstrated the degradation of AHLs by an Antarctic […]
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Geochronology of the Lake Region of south-central Chile (39°–42°S): Preliminary results
Read more of: Geochronology of the Lake Region of south-central Chile (39°–42°S): Preliminary resultsCarboniferous, igneous, and metamorphic rocks, followed by Jurassic, Cretaceous, and particularly extensive Miocene granitoid plutons, crop out in the Andes of the Lake Region, as determined by new K-Ar and […]
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Sulphuric acid at grain boundaries in Antarctic ice
Read more of: Sulphuric acid at grain boundaries in Antarctic iceIt has been suggested1,2 that acids in the cold polar ice sheets may exist as aqueous mixtures at grain boundaries. This assumption can correctly predict the d.c. conductivity of polar […]
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An inflammatory response of the Antarctic silverfish, Pleuragramma antarcticum Boulenger 1902 (Teleostei: Notothenioidei), to infestation by the plerocercoid of a pseudophyllidean cestode (Diphyllobothrium sp.)
Read more of: An inflammatory response of the Antarctic silverfish, Pleuragramma antarcticum Boulenger 1902 (Teleostei: Notothenioidei), to infestation by the plerocercoid of a pseudophyllidean cestode (Diphyllobothrium sp.) -
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Anions and cations in ice cores from Dolleman Island and the Palmer Land plateau, Antarctic Peninsula
Read more of: Anions and cations in ice cores from Dolleman Island and the Palmer Land plateau, Antarctic PeninsulaHigh-resolution anion profiles of Cl-, NO3- and SO4 2− are presented for two cores from the Antarctic Peninsula. A 47.2 m core from a site on the Palmer Land plateau […]
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Dielectric variability of a 130 m Antarctic ice core: implications for radar sounding
Read more of: Dielectric variability of a 130 m Antarctic ice core: implications for radar soundingA 130 m long ice core has been dielectrically profiled. From an analysis of the measurements, we obtain a profile of the high-frequency (radio-echo) conductivity. This profile has been represented […]
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Reverse fault step at Engel Peaks, Antarctic Peninsula
Read more of: Reverse fault step at Engel Peaks, Antarctic PeninsulaA steep reverse fault at Engel Peaks, Antarctic Peninsula, cuts granophyre and overlying volcanic rocks and incorporates a lower angle zone or ‘fault step’. The reverse fault step differs from […]