The majority of my philosophical research has been concerned with developing an analysis of the concept of a causal mechanism, and with investigating the role that mechanisms and their models play in the work of scientists. In my view, a philosophical conception of the nature of science which understands scientists as seeking to discover and describe mechanisms provides a model of science and nature that comports better with actual scientific practice than do more traditional models that characterize scientific theories in terms of laws of nature. My work has focused on elucidating the consequences of this mechanistic approach for our understanding of causation, explanation and the structure of theories and models. Mechanistic approaches are now being pursued by philosophers with interests in a wide variety of scientific disciplines, though my work has focused chiefly on biology and psychology. In addition to my work on mechanisms, I also have also written more generally on the nature of science, science and religion, and science education.
If you are interested in recent philosophical work on mechanisms, you might check out a bibliography maintained by Lindley Darden at the University of Maryland