Why Finland’s running circles around us

Hippodrome: Running Circles Around Storage Administration

Enterprise-scale computer storage systems are extremely difficult to manage due to their size and complexity. It is difficult to generate a good storage system design for a given workload and to correctly implement the selected design. Traditionally, initial system configuration is performed by administrators who are guided by rules of thumb. Unfortunately, this process involves trial and error...

Going around in circles

Let ε > 0 and let Ω be a disk of sufficiently large radius R in the plane, i. e., R ≥ R(ε). We first show that the set of lattice points inside Ω can be connected by a (possibly selfintersecting) spanning tour (Hamiltonian cycle) consisting of straight line edges such that the turning angle at each point on the tour is at most ε. This statement remains true for any large and evenly distributed ...

Response strategies in the radial arm maze: Running around in circles

Running in Circles: Packet Routing on Ring Networks

I analyze packet routing on unidirectional ring networks, with an eye towards establishing bounds on the expected length of the queues. Suppose we route packets by a greedy “hot potato” protocol. If packets are inserted by a Bernoulli process and have uniform destinations around the ring, and if the nominal load is kept fixed, then I can construct an upper bound on the expected queue length per...

Constitutive trafficking--more than just running in circles?

The CB1 cannabinoid receptors are among the most highly expressed G protein coupled receptors (GPCRs) in the brain. Their activation has been associated with a wide range of behaviors, including cognition, pain perception, drug addiction, and memory consolidation, and they have been pharmaceutically targeted for pain therapies, smoking cessation, and appetite control. The CB1 receptor has been ...