This paper describes a method for constructing a distributed database from a set of compute-nodes, a local area network, and a set of object-disks. We assume object-disks do not fail; nodes can fail or go to sleep for long periods. In order for a node to access an object inside an object-disk a valid lease is required. There are two issues that need resolving (1) how to build a database on top ...

Chitin the second most abundant after cellulose biopolymer found in nature after, is produced by many living organisms, and is present usually in a complex with other polysaccharides and proteins. Chitin was found as a major component in arthropods (insects, crustaceans, arachnids and myriapods), nematodes, algae and fungi. In this study Chitin was isolated from various species (crab, squilla, ...

A seismic isolation system for the proposed 'Advanced LIGO' detector upgrade is under development. It consists of a two-stage in-vacuum active isolation platform that is supported by an external hydraulic actuation stage. A full-scale preliminary-design technology demonstrator of the in-vacuum platform has been assembled and is being tested at Stanford's engineering test facility. Unanticipated...

BACKGROUND AND OBJECTIVES Bacillus species are attractive industrial organisms due to their rapid growth rates leading to a short fermentation cycle and for their capacity to secrete important enzymes and proteins such as xylanase into the extracellular medium. Considering the industrial importance of xylanase, in this current study, Bacillus spp. were isolated from different soils and were scr...

Isolation, Identification, and Investigation of Biological Properties Biosurfactant-Producing Probiotics Magnesium Nanoparticles from Local Dairy Samples: A Laboratory Study

BACKGROUND Quercus oleoides Cham. and Schlect., tropical live oak, is a species of conservation importance in its southern range limit of northwestern Costa Rica. It occurs in high-density stands across a fragmented landscape spanning a contrasting elevation and precipitation gradient. We examined genetic diversity and spatial genetic structure in this geographically isolated and genetically di...