Brainstem disconnection

Disconnection and Responsibility

Giant duodenal ulcers after neurosurgery for brainstem tumors that required reoperation for gastric disconnection: a report of two cases

BACKGROUND Despite the efficacy of pharmacotherapy for gastrointestinal ulcers, severe cases of bleeding or perforation due to gastrointestinal ulcers still occur. Giant duodenal ulcer perforation is an uncommon but difficult-to-manage pathology with a high mortality rate. We report two cases of giant duodenal ulcer perforation after neurosurgery for brainstem tumors that needed reoperation for...

Network disconnection problems

Network disconnection problems are defined from a network attacker's point of view. In a centralized network where flows are supplied from a source node to the other nodes, called demand nodes, a network attacker aims to block the supply to demand nodes by destroying edges. As destroying edges incurs expenses, an attacker considers the following three different strategies. The first problem, de...

The starburst - AGN disconnection

Optical studies of starbursts, AGN and their connections usually leave out galaxies whose emission lines are too weak to warrant reliable measurement and classification. Yet, weak line galaxies abound, and deserve a closer look. We show that these galaxies are either massive, metal rich star-forming systems, or, more often, LINERs. From our detailed stellar population analysis, we find that the...

Uperieure S Ormale N Ecole Bounds for Disconnection Exponents Bounds for Disconnection Exponents Bounds for Disconnection Exponents

We slightly inprove the upper bounds of disconnection exponents for planar Brownian motion that we derived in an earlier paper. We also give a plain proof of the lower bound 1=(2) for the disconnection exponent for one path.