In damselflies, sexual colour dimorphism is commonly explained as a consequence of selection on traits that increase male attractiveness to females. However, while many species in the damselfly family Coenagrionidae (Insecta: Odonata) are sexually dimorphic, the males do not engage in displays, and male competition for mates resembles a "scramble". An alternative explanation for the sexual diff...

c? ^ t v Picheco s an kii oik,?With reference to Dr. J. jN; 'c(hocl of bug n your February number. A simpj remedy being destructionI remember the coconut used in a hospital many years ago, but do not know why it was not more generally adopted in other institutions. I desire to draw attention to the following procedure which seems to be a prophylactic against bugbreeding. Hospital cots, if paint...

The game and movie industries always face the challenge of reproducing materials. This problem is tackled by combining illumination models and various textures (painted or procedural patterns). Generating stochastic wall patterns is crucial in the creation of a wide range of backgrounds (castles, temples, ruins...). A specificWang tile set was introduced previously to tackle this problem, in a ...

The goal of this study was to identify the factors that limit the survival of the red-eared slider turtle Trachemys scripta during long-term anoxic submergence at 3 C. We measured blood acid-base status and tissue lactate and glycogen contents after 13, 29, and 44 d of submergence from ventricle, liver, carapace (lactate only), and four skeletal muscles. We also measured plasma Ca , Mg , Na , K...