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pro vyhledávání: '"Johanna F. Polsenberg"'
Autor:
John McManus, Johanna F. Polsenberg
Publikováno v:
Progress in Oceanography. 60:263-279
This paper briefly reviews coral–algal phase shifts on coral reefs, with particular regard to summarizing the exogenous and endogenous factors in support of a proposed conceptual model, and to identifying critical information gaps. A phase shift oc
Autor:
Johanna F. Polsenberg, Julie G. Osborn
Publikováno v:
Trends in ecologyevolution. 11(9)
Autor:
Mary E. Petry, Johanna F. Polsenberg, Roberto Di Domenico, A. Paul Krapcho, John J. Landi, Emesto Menta, John Stallman, Silvano Spinelli, Ambrogio Oliva, Miles P. Hacker
Publikováno v:
Journal of Heterocyclic Chemistry. 30:1565-1569
The synthesis of 6,9-difluorobenzo[g]quinoline-5,10-dione (3b) is described. Facile ipso substitutions of the fluorides form (3b) by diamines readily yield the corresponding 6,9-bis[(aminoalkyl)amino]- benzo[g]quinoline-5,10-diones (2). The analogue