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We introduce a simple data model and API tailored for serving the social graph, and TAO, an implementation of this model. TAO is a geographically distributed data store that provides efficient and timely access to the social graph for Facebook’s demanding workload using a fixed set of queries. It is deployed at Facebook, replacing memcache for many data(More)
Over 800 million people around the world share their social interactions with friends on Facebook, providing a rich body of information referred to as the social graph. In this talk, I describe how we model and serve this graph. Our model uses typed nodes (fbobjects) and edges (associations) to express the relationships and actions that happen on Facebook.(More)
BACKGROUND To follow up populations exposed to several radiation accidents in the Southern Urals, a cause-of-death registry was established at the Urals Center capturing deaths in the Chelyabinsk, Kurgan and Sverdlovsk region since 1950. OBJECTIVES When registering deaths over such a long time period, quality measures need to be in place to maintain(More)
Background: To follow up populations exposed to several radiation accidents in the Southern Urals, a cause-of-death registry was established at the Urals Center capturing deaths in the Chelyabinsk, Kurgan and Sverdlovsk region since 1950. Objectives: When registering deaths over such a long time period, quality measures need to be in place to maintain(More)
Reparative regeneration after fetal tissue transplantation and after surgical stimulation was studied in rats with experimental cirrhosis of the liver. Fetal tissue restored the morphology and function of cirrhotic liver and modified functional activity of peritoneal macrophages.
A retrospective clinico-morphological analysis of a 10 years follow-up study of 57 patients with chronic active hepatitis of viral etiology undergoing surgical stimulation of liver regeneration revealed that the effect of this procedure was good in 29 cases, fair in 16 cases and unsatisfactory in 12 cases. It is concluded that the effect depended on the(More)
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