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Life-history theory predicts evolutionary changes in reproductive traits and intrinsic mortality rates in response to differences in extrinsic mortality rates. Trade-offs between lifehistory traits… (More)
Abstract Two new sesquiterpene lactones, herbolides E and F, have been isolated from a further chemotype of Artemisia herba alba .
Twenty-two cases of intramedullary spinal tumours with cystic parts and 22 cases of hydrodynamic syringomyelia were classified according to criteria such as age at onset, duration of symptoms, nature… (More)
We present 55 CCD images and six spectra of a complete sample of 57 8C radio sources selected at 38 MHz in the North Ecliptic Cap. All but eight sources appear to be optically identified to a… (More)
Abstract The sesquiterpene lactones of two additional Israeli Artemisia herba alba populations, one from Elat the other from Mizpe Ramon, were investigated. While the Elat population was devoid of… (More)
The ultrasonographic findings of anomalous insertion of the inferior vena cava in the portal venous system were evaluated and correlated with angiographic features. The ontogenic development of the… (More)