The dust grains survive passage through the reverse shock and the low density shocked wind, reach the dense shell swept-up by the bubble, detach from the decelerated wind and are injected into the shell.
The process of inferring the oxygen budget in the ISM is subject to several major uncertainties, including the correct reference abundance in the ISM and the composition of grains surviving shock destruction.
This rough estimation suggests that although the spectral alteration of anthracene does not appear around dense molecular clouds, it may occur in reflection nebula and young stellar environments if anthracene grains survive into that stage.
The individual grains of these CP IDPs are unequilibrated (Fraundorf et al., 1982), some exhibit isotopic anomalies indicating they are interstellar/circumstellar grains that survived incorporation into the Solar System (Messenger, 2000), and they have elemental compositions consistent with primitive Solar Nebula material (Brownlee, 1985; Flynn, 1994).
Probably the bacterial CFU were due to spores present on the grain and survived the pre-treatment.
Observations made on cobs, cob fragments or isolated grains shed in the field during harvesting, indicate that grains may survive and overwinter in some regions, resulting in volunteers in subsequent crops.
The UN development programme has been running pilot climate change adaptation programmes in Butana, Wad Hassan and Sirag Elnour to try to stop good soils from shifting or drying up, and farmers waiting on rains and grains to survive.
We know that inorganic grains such as SiC of AGB origin have been found in meteorites (Zinner, 1998), so there is evidence that stellar grains can survive the journey through the interstellar medium to have arrived in the Solar System.
We do not need grains to survive, let alone thrive.
The team selected rice as the vaccine vector because the grain survives digestion in the stomach, which breaks down most other foods.
