The covid-19 Pandemic has made many people work from home to have much time trade in the capital market. Through "Yuk Nabung Saham” program, Indonesia Stock Exchange (IDX) tries introduce market young investors through a partnership with university. This study aimed analyze effect of demographic variables (age, gender, and experience) on investment decision-making risk perceptions attitudes und...

Eurofound data shows that only 29% of employees in the European Union, Norway and United Kingdom participate work their organizations at a high level involvement: they making decisions have an impact on wider organization, individually or collectively, show personal initiative carrying out daily tasks. At time when many companies are facing serious crises (inflation, problems functioning supply...

We show how and why it makes sense to use a relational formalisation instead of the usual functional one in the treatment of term graphs. Special attention is paid to term graphs with bound variables, that have, to our knowledge, never been formalised with such a generality before. Besides the novel treatment of term graphs themselves, we present an innovative relational homomorphism concept th...

Most real world engineering design problems, such as cross-country water mains, include combinations of continuous, discrete, and binary value decision variables. Very often, the binary decision variables associate with the presence and/or absence of some nominated alternatives or project’s components. This study extends an existing continuous Ant Colony Optimization (ACO) algorithm to simultan...

&bstract. The use of symmetry to alleviate state-explosion problems during model-checking has become a important research topic. This paper investigates several problems which are important to techniques exploiting symmetry. The most important of these problems is the orbit problem. We prove that the orbit problem is equivalent to an important problem in computational group theory which is at l...