Flood avoidance behaviour in Brown Dippers Cinclus pallasii

Fledgling begging and parental responsiveness in American dippers (<i>Cinclus mexicanus</i>)

In nestling birds, begging typically signals short-term hunger and is often used by parents to allocate food within a brood. Although young birds continue to beg long after nest departure less is known about the information content of begging and its influence on parental allocation patterns post-fledging. We examined the function of begging in fledgling American dippers (Cinclus mexicanus) and...

Isolated systolic or diastolic dippers, an intermediate subgroup between dippers and non-dippers

A Dynamic Navigation Approach with Rebroadcasting Flood Avoidance in VANETs

In this paper, we present a dynamic navigation approach (DNA) that can be combined with GPS receivers, digital maps, and wireless technologies such as DSRC, 802.11p, and WiMAX. By calculating the score, a weighted sum of average vehicle speed, average inter-vehicle distance, road type, and road gain, for each candidate road, the DNA can generate a road score table and choose the road with the h...

Echolocation behaviour of the big brown bat (Eptesicus fuscus) in an obstacle avoidance task of increasing difficulty.

Four big brown bats (Eptesicus fuscus) were challenged in an obstacle avoidance experiment to localize vertically stretched wires requiring progressively greater accuracy by diminishing the wire-to-wire distance from 50 to 10 cm. The performance of the bats decreased with decreasing gap size. The avoidance task became very difficult below a wire separation of 30 cm, which corresponds to the ave...

Do extreme dippers have a lower cardiovascular risk than dippers?

Do Extreme Dippers Have a Lower Cardiovascular Risk Than Dippers? To the Editor: We have recently read with interest the article by Verdecchia et al concerning the relationship between day-night blood pressure (BP) dip. During a mean follow-up period of 8.44 years, extreme dippers had a lower rate of cardiovascular CV events (0.57 [95% CI, 0.36–0.88]) than dippers (0.76 [95% CI, 0.63–0.92]). Th...