Deep-sea research: Dive master

Sea dive

shortcoming because it would have allowed to compare conditions under which potential conflicts become real conflicts (e.g. the conflict over sex ratio) and those where they don't (e.g. conflict over queen rearing) — a crucial criterion for the superorganism. The final chapters are devoted to the Ponerine ants — a subfamily characterized by its staggering diversity and by its primitive social o...

Dive deeper: Deep Semantics for Sentiment Analysis

This paper illustrates the use of deep semantic processing for sentiment analysis. Existing methods for sentiment analysis use supervised approaches which take into account all the subjective words and or phrases. Due to this, the fact that not all of these words and phrases actually contribute to the overall sentiment of the text is ignored. We propose an unsupervised rule-based approach using...

The Future of Integrated Deep-Sea Research in Europe

Deep sea in deep trouble?

Ahead of the imminent start of the industrial exploitation of deep sea resources, an EU report finds that scientific knowledge and understanding of this environment and its ecosystems still fall short of what would be needed for a sustainable use.

Dive behaviour can predict metabolic expenditure in Steller sea lions

Quantification of costs associated with foraging contributes to understanding the energetic impact that changes in prey availability have on the energy balance of an animal and the fitness of populations. However, estimating the costs of foraging is difficult for breath-hold divers, such as Steller sea lions, that feed underwater. We developed models parameterized with data from free-diving cap...