Thank you. Actually, ululation might provide fertile ground for research papers, theses, book reports, etc. Like that scientist above: "The paper concludes by analyzing the ways in which the participants make use of these expressive cries to interpret and construe their images of ritual participation"
We could measure the ululatory pitch frequencies immedeiately preceding and following B-52 strikes. Or, my favorite, various ululatory techniques of trans-national belly dancers.