The OWL2 profile OWL2QL, based on the DL-Lite family of description logics, is emerging as a major language for developing new ontologies and approximating the existing ones. Its main application is ontology-based data access, where ontologies are used to provide background knowledge for answering queries over data. We investigate the corresponding notion of query inseparability (or equivalence...

background & objectives: fasting in the month of ramadan has several positive effects on the emotional and mental state and improves happiness in the community. this study aimed to investigate the effects of fasting on the level of happiness in the general population. materials and methods: in this study, we used pretest-posttest analysis to evaluate the hypothesis, and the study population con...

We offer and test a simple operationalization of hedonic and eudaimonic well-being ("happiness") as mediating variables that link outcomes to motivation. In six evolutionary agent-based simulation experiments, we compared the relative performance of agents endowed with different combinations of happiness-related traits (parameter values), under four types of environmental conditions. We found (...

In 1872, Darwin speculated that emotion expressions in humans and animals are evolved products of natural selection. He argued that a number of emotion expressions are universal, and he wrote, “Of all the ... complex emotions, pride, perhaps, is the most plainly expressed. A proud man exhibits his sense of superiority over others by holding his head and body erect ... and makes himself appear a...