Male Kestrel Shares Incubating Duties

Skin carotenoid concentration correlates with male hunting skill and territory quality in the kestrel Falco tinnunculus

In the context of sexual selection carotenoid based signals are candidates for indicator traits: they have to be taken up in the diet by animals, they can indicate the ability of the bearer to accumulate a limited resource, and they help in maintaining the health status. We investigated the yellow-orange colouration of the tarsi of the kestrel Falco tinnunculus in relation to sex, diet and to d...

Convertible Preferred Shares Not Term Preferred Shares

The Federal Court of Appeal recently rendered its judgment in Citibank15 and affirmed the Tax Court of Canada’s earlier decision.16 The issue in Citibank was whether certain shares constituted “term preferred shares,” as defined in subsection 248(1) of the Act. Where a specified financial institution (SFI) acquires term preferred shares in the ordinary course of business, subsection 112(2.1) of...

Conflicting clinical duties.

The first three articles in the Clinical Ethics section of this issue of Journal of Medical Ethics address potential conflicting duties of physicians. The first paper, by Niklas Juth and Niels Lynöe (see page 215, Editor’s choice), reports results of an empirical study of Swedish physicians’ attitudes regarding the provision of virginity certificates or hymen restorations requested by women, of...

Rights and Duties

Evolutionary Computation: Challenges and duties

Evolutionary Computation (EC) is now a few decades old. The impressive development of the field since its initial conception has made it one of the most vigorous research areas, specifically from an applied viewpoint. This should not hide the existence of some major gaps in our understanding on these techniques. In this essay we propose a number of challenging tasks that –according to our opini...