Facebook takes performance monitoring seriously. Performance issues can impact over one billion users so we track thousands of servers, hundreds of PB of daily network traffic, hundreds of daily code changes, and many other metrics. We require latencies of under a minute from events occuring (a client request on a phone, a bug report filed, a code change checked in) to graphs showing those even...

A recreational scuba diver wore a second scuba regulator against his face during a scuba dive, attached by an elastic rubber cord necklace. After surfacing, the diver's left face became swollen. Through a process of elimination all other items of scuba equipment were excluded as potential causes. A dive with the same equipment minus the necklace confirmed the involvement of the necklace in the ...

We have developed an integrated molecular simulation system for biological macromolecules, called SCUBA (Simulation Codes for hUge Biomolecular Assembly) which is designed to run a biomolecule system composed of more than one million particles efficiently on parallel computers. SCUBA is now being used not only for molecular dynamics (MD) simulations but also to determine the 3D structure of sup...

We present the properties of the 12CO(1-0) and (3-2) line emission from the nuclei of 60 IR luminous SLUGS galaxies. This subsample is flux limited at S60μm ≥ 5.24 Jy with FIR luminosities mostly at LFIR > 10 10 L⊙. The emission line strengths of 12CO(1-0) and (3-2) transitions were compared at a common resolution of ∼ 15, and the line ratios r31 vary from 0.22 to 1.72 with a mean value of 0.66...

We present results from a JCMT/SCUBA 850 μm search for cold dust around eight nearby young stars belonging to the β Pic (t ≈ 12 Myr) and the Local Association (t ≈ 50 Myr) moving groups. Unlike most past sub-mm studies, our sample was chosen solely on the basis of stellar age. Our observations achieve about an order of magnitude greater sensitivity in dust mass compared to previous work in this...

A mussel population survey was conducted in Lake St. Clair with divers using SCUBA to sample at 29 stations throughout the lake. Mean abundance was 2 m~2 and mean biomass was 4.4 g dry wt m~2. Of the 18 species collected, Lampsilis radiata siliquoidea was by far the most abundant, accounting for 45% of all individuals. The age-frequency distribution ofL. r. siliquoidea was dominated by individu...

Abstract We present observations of polarized dust emission at 850 μ m from the L43 molecular cloud, which sits in Ophiuchus cloud complex. The data were taken using SCUBA-2/POL-2 on James Clerk Maxwell Telescope as a part BISTRO large program. is dense ( <mml:mr...