The random deployment process and the unpredictable movement of sensor nodes lead to a high demand for an exact and reliable self localization process. Existent methods are mostly not feasible on strongly resource limited sensor nodes with an absolute minimum of energy. Thus, this paper describes the "Distributed Least Squares (DLS)"-algorithm that reduces the needed amount of energy to a minim...

Method To improve vaccine supply chain management in Mozambique a Dedicated Logistics System (DLS) was trialled. This system works through providing dedicated personnel to consolidate supply chain functions at the provincial level where limited resources are more likely to be available. These dedicated personnel distribute vaccines directly to health centres based on actual consumption, collect...

Nakamurella lactea DLS-10T, isolated from rock in Korea, is one of the four type strains of the genus Nakamurella. In this study, we describe the high quality draft genome of N. lactea DLS-10T and its annotation. A summary of phenotypic data collected from previously published studies was also included. The genome of strain DLS-10T presents a size of 5.82 Mpb, 5100 protein coding genes, and a C...

In this paper, we continue the recently started work on integrating action formalisms with description logics (DLs), by investigating planning in the context of DLs. We prove that the plan existence problem is decidable for actions described in fragments of ALCQIO. More precisely, we show that its computational complexity coincides with the one of projection for DLs between ALC and ALCQIO if op...

Biomedical ontologies and semantic web policy languages based on description logics (DLs) provide fresh motivations for extending DLs with nonmonotonic inferences—a topic that has attracted a significant amount of attention along the years. Despite this, nonmonotonic inferences are not yet supported by the existing DL engines. One reason is the high computational complexity of the existing deci...

Conjunctive regular path queries are an expressive extension of the well-known class of conjunctive queries and have been extensively studied in the database community. Somewhat surprisingly, there has been little work aimed at using such queries in the context of description logic (DL) knowledge bases, and all existing results target expressive DLs, even though lightweight DLs are considered b...

Description Logics (DLs) are the formal foundations of the standard web ontology languages OWL-DL and OWL-Lite. In the Semantic Web and other domains, ontologies are increasingly seen also as a mechanism to access and query data repositories. This novel context poses an original combination of challenges that has not been addressed before: (i) sufficient expressive power of the DL to capture co...