in the early stages of a construction project, the reliability and accuracy of conceptual cost estimates are major concerns for clients and cost engineers. previous studies applied scoring methods and established common rules or mathematical methods to assess the quality of cost estimates. however, those approaches have some limitations in adapting to real-world projects or require understandin...

9 15 36 Nerve center: I told the neurologist, 'I'm having a stroke. These are my symptoms.' I wasn't all upset about it. Needle and the damage done: In my 25 years of doing substance abuse research here I've never seen anything like this… Age old question: How old is your skeleton? It seems like a simple question. As old as you are, right? Not exactly. In this edition of Vital Signs, we tackle ...