Ocean researchers dive to deep-sea stations

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...

Habitat-forming deep-sea corals in the Northeast Pacific Ocean

We define habitat-forming deep-sea corals as those families of octocorals, hexacorals, and stylasterids with species that live deeper than 200 m, with a majority of species exhibiting complex branching morphology and a sufficient size to provide substrata or refugia to associated species. We present 2,649 records (name, geoposition, depth, and data quality) from eleven institutions on eight hab...

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...

To dive or not to dive.

Irminger Sea deep convection injects oxygen and anthropogenic carbon to the ocean interior

Deep convection in the subpolar North Atlantic ventilates the ocean for atmospheric gases through the formation of deep water masses. Variability in the intensity of deep convection is believed to have caused large variations in North Atlantic anthropogenic carbon storage over the past decades, but observations of the properties during active convection are missing. Here we document the origin,...