For the California coast, the Protohistoric period (ca. AD 15421769) was long regarded as a final respite before Mission period colonial expansion devastated traditional California Indian societies. Recent papers have argued that epidemics of Old World diseases may have impacted the Chumash and other California tribes well before the first missions were established, but the evidence for such ep...

While process modeling has become important for documenting business operations and automating workflow execution, there are serious issues with efficiently and effectively creating and modifying process models. While prior research has mainly investigated process model comprehension, there is hardly any work on maintainability of process models. Cognitive research into software program compreh...

In this paper we describe the ongoing work on the Circumstantial Event Ontology (CEO), a newly developed ontology for calamity events that models semantic circumstantial relations between event classes, where we define circumstantial as explicit and implicit causal relations. The circumstantial relations are defined manually in the ontology for classes of events that involve a change to the sam...

Intramural oesophageal haematoma is a rare condition that may present as vomiting or haematemesis. Mallory-Weiss tear has been proposed as a possible aetiology but the evidence to support this is circumstantial. A case of oesophageal haematoma associated with evidence of Mallory-Weiss tear on endoscopy that helps to support this hypothesis is presented.