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Article
Differential RNA splicing predicts two distinct nerve growth factor precursors
Nerve growth factor (NGF) has a crucial role in the development of sensory and sympathetic neurones1–6. However, although it can affect other neural cell types under certain experimental conditions7, no biologica...
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Article
Discovery of an IR echo from a supernova dust cloud
Supernova (SN) 1982g in NGC1332 was discovered by Maza on 28 March 1982 at mpg=14.0 (ref. 1) some 30kpc (Ho = 50 km s−1 Mpc−1) from the nucleus of the parent galaxy (distance, 30Mpc; type, SO)2. No other optical ...
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Article
IR flashes from the X-ray rapid burster
We confirm here the report of Kulkarni et al.1 who discovered IR bursts from the X-ray rapid burster, MXB1730–335. We observed two bursts at 2.2 µm, each of energy ∼1031 J, and a new feature; several bright, brie...
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Article
Possible Tertiary Age for Some Antarctic Cirques
SOME large cirques cut into the ridges above the Wright Valley, in the McMurdo Oasis, Antarctica (77° 30′ S, 161° E), are now free of ice and are below the permanent snow line (Figs. 1 and 2). Present day prec...