□ □
[□] □
□* □
To ensure that a fatality occurred while the decedent was at work , information is verified from two or more independent source documents or from a source document and a follow-up questionnaire . It appears that the emergence of the maize kernel from the cupulate fruit case of teosinte about 8,000 years ago was accomplished by two different systems during two or more independent domestications . Network and corridor cities evolve when two or more independent cities work together to achieve scope economies through reciprocity and knowledge exchange , aided by fast and efficient transport and communications infrastructure ( Batten , 1995 ) . This means one or more independent device cross sections can be defined , and then the contacts of these device ( s ) can be connected to simple circuit networks consisting of ideal switches , resistors , capacitors , inductors , current sources or voltage sources . The router will register with two or more MARSs , and thereby acquire two or more independent CMI 's .