Sina received her BA from Earlham College in Richmond, Indiana, and her MA and PhD in philosophy from DePaul University in Chicago. She works in the areas of political theory, feminist philosophy, critical theory and German idealism. Her work focuses on the political epistemology of constitutive exclusion, or the process by which a certain form of difference is excluded, and yet remains within and continues to work for, the establishment of a political body that claims to operate as a totality. Her work is motivated by the desire to understand who is intelligible as a political agent, who is not, and what this unintelligibility does for politics. She defended her dissertation project, "Constitutive Exclusion and the Work of Political Unintelligibility" and was awarded distinctions in 2011. Her article "Outside/In: Antigone and the Limits of Politics" is forthcoming in the volume Returns of Antigone, and she has presented work at several national conferences, including the Society for Phenomenology and Existential Philosophy, the American Philosophical Association, the Radical Philosophy Association, and the Western Political Science Association. Sina has taught a number of courses in philosophy, including courses on the nature of freedom, on business ethics, on sex and gender, on multiculturalism, and on the concept of history. She will be teaching Foundations of Political Theory and Feminist Political Theory.