Poland to join strike-disrupted CERN

Counter Strike: Generic Top-Down Join Enumeration for Hypergraphs

Finding the optimal execution order of join operations is a crucial task of today’s cost-based query optimizers. There are two approaches to identify the best plan: bottom-up and top-down join enumeration. But only the top-down approach allows for branchand-bound pruning, which can improve compile time by several orders of magnitude while still preserving optimality. For both optimization strat...

To strike or not to strike.

The Right to Strike

3D stochastic rock fracture modeling related to strike-slip faults

Fault zones and fault-related fracture systems control the mechanical behaviors and fluid-flow properties of the Earth’s crust. Furthermore, nowadays, modeling is being increasingly used in order to understand the behavior of rock masses, and to determine their characteristics. In this work, fault zones and fracture patterns are reviewed, and also comprehensive studies are carried out on the fr...

Basal ganglia hemorrhage related to lightning strike.

We describe a case of bilateral basal ganglia hemorrhage after a lightning strike to the head documented by a CT scan. Review of the literature shows this to be the most common brain imaging finding that can be attributed to a lightning strike. Several mechanistic theories are discussed, with the most plausible one being related to preferential conduction pathways through the brain.