When Steven Mixtacki became chief operating officer for one of the partners in the Wisconsin Institutes for Discovery, he quickly learned what some of the unscientific requirements were for the new facility. “I was told researchers want good coffee, beer and a place they can collaborate and get together,” said Mixtacki, who joined the Wisconsin Alumni Research Foundation in February. Those elements are part of the plan. A new venture by the restaurant group Food Fight called Discovery Culinary Collaborative will run two restaurants in the center that is scheduled to open in December on the 1300 block of University Avenue.