This paper presents an incremental and scalable learning algorithm in order to mine numeric, low dimensionality, high–cardinality, time–changing data streams. Within the Supervised Learning field, our approach, named SCALLOP, provides a set of decision rules whose size is very near to the number of concepts to be extracted. Experimental results with synthetic databases of different complexity d...

The Atlantic sea scallop, Placopecten magellanicus, is a bivalve mollusc that occurs along the Atlantic seaboard of North America. It is commercially exploited and in many areas has sustained an important fishery for more than 60 years (1). Recently it has been targeted as a potential species for aquaculture (2). The 18S rRNA sequence presented below represents the first complete molluscan sequ...

A 63-year-old man presented with symptomatic severe mitral regurgitat ion. Both trans-esophageal 3-D echocardiography and operative linear measurements showed a 25 mm long A2 anterior leaflet with a very wide (23 mm) prolapsing 30 mm long P2 posterior mid-scallop (Figure 1A,B). P1 and P3 were diminutive in height and width (Figure 2). A ‘haircut’ posterior leaflet-plasty was done to maintain le...

In this report, we describe a new procedure to repair the prolapsing high mid-scallop of the mitral valve (MV) posterior leaflet (P2) with detailed consideration of the anatomy and physiology of the MV. A new artificial chord is implanted in the body of the P2 at the same height of non-prolapsing P1 and P3, and the remaining part of the prolapsing P2 is anchored to the artificial chord taking t...

A dynamic model for a swimming scallop was developed which integrates the mechanical properties of the hinge ligaments, valve inertia, the external fluid-flow reaction, the fluid pressure in the mantle cavity and the muscle contraction. Kinematic data were recorded for a swimming Placopecten magellanicus from high-speed film analysis. Dynamic loading experiments were performed to provide the re...

Hydrobionts have a high nutritional value and are the most important component of food supply for population Russia. In course study, characteristics stocks fisheries king crab, opilio snow northern shrimp, Icelandic scallop, sea green urchin other commercial invertebrates in 2000-2020 presented. The raw material base fishery crab is used full; indices their biomass 215 430 thousand tons, respe...