ESIssä
ESIssä is a Finnish word that translates to "in ESSI" or "within ESSI." ESSI itself is an acronym for the European Spallation Source, a large-scale research facility currently under construction in Lund, Sweden. Therefore, "ESIssä" specifically refers to being located at or involved with the European Spallation Source project. The facility is designed to be a world-leading neutron source, enabling groundbreaking research across a variety of scientific fields, including materials science, life sciences, and fundamental physics. When researchers or personnel are described as being "ESIssä," it implies their presence at the construction site, their involvement in the project's development, or their participation in scientific activities once the facility becomes operational. The construction and eventual operation of ESSI represent a significant international collaboration involving many European countries and beyond. The word "ESIssä" therefore signifies participation in this major scientific endeavor.