Misplaced modifiers: An introductory participial phrase, which has an adjectival sense, is supposed to refer to the subject of the following clause. Despite being loaded with fat and calories, studies show that snacking on nuts can cause you to eat less at meals. Studies, of course, is the subject. Putting despite being loaded … after nuts would get things where they belong. And prepositional phrases tend to modify whatever they are close to. Joseph Fewsmith, an expert on the Chinese leadership at Boston University, said, only half jokingly, “It seems that Jiang is stronger today than he was yesterday.” Rather than suggest that the Red Chinese have taken over BU, write that Professor Fewsmith is an expert at Boston University on the Chinese leadership.