Robert Wagner

TL;DR: In this paper, the authors analyzed size distributions measured continuously at a boreal forest measurement site at Hyytiala, Finland between 1996 and 2003 and identified days when new aerosol particle formation was taking place as well as days when no formation was detected, removing days with ambiguous status.

TL;DR: It is shown that organic vapours alone can drive nucleation, and a particle growth model is presented that quantitatively reproduces the measurements and implements a parameterization of the first steps of growth in a global aerosol model that can change substantially in response to concentrations of atmospheric cloud concentration nuclei.

TL;DR: Ion-induced nucleation of pure organic particles constitutes a potentially widespread source of aerosol particles in terrestrial environments with low sulfuric acid pollution.

TL;DR: In this paper, it was shown that heterogeneous nucleation of ice on glassy solution droplets is an important mechanism for ice nucleation in the tropical tropopause layer.

TL;DR: Heteroduplexes with mismatches at four sites were constructed from separated strands of lambda DNA and used to transfect Escherichia coli under recombinationless conditions and suggest that repair tracts initiate at mismatches, propagate preferentially in the 5'leads to 3' direction, and extend an average distance of ca 3000 nucleotides.