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Planta Medica, 1982
The alkaloidal content of the leaves and stem barks of H. peltata has been studied; eleven alkaloids and three lignans are isolated from the leaves, eleven alkaloids from the stem barks. Thirteen different alkaloids are identified by means of the spectral analysis; twelve are aporphines and nor-aporphines.
M, Lavault, P, Cabalion, J, Bruneton
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The alkaloidal content of the leaves and stem barks of H. peltata has been studied; eleven alkaloids and three lignans are isolated from the leaves, eleven alkaloids from the stem barks. Thirteen different alkaloids are identified by means of the spectral analysis; twelve are aporphines and nor-aporphines.
M, Lavault, P, Cabalion, J, Bruneton
openaire +2 more sources
ACM SIGACT News, 2004
We present a tutorial for undergraduate students who are interested in different programming contests like National Programming Olympiads or regional ACM International Collegiate Programming Contests (ACM ICPC). It is based on a problem discussed by E. W. Dijkstra in a public lecture in 1994.
Svetlana O. Shilova +1 more
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We present a tutorial for undergraduate students who are interested in different programming contests like National Programming Olympiads or regional ACM International Collegiate Programming Contests (ACM ICPC). It is based on a problem discussed by E. W. Dijkstra in a public lecture in 1994.
Svetlana O. Shilova +1 more
openaire +1 more source