Additional Iowa Pteridophyte References

Fifty-two annotated references are added to the bibliography of references on Iowa pteridophytes. The bibliography was compiled to include references which treated the taxonomic, ecologic, physiologic or phytogeographic aspects of Iowa\u27s ferns, horesetails, quillworts, clubmosses, and spikemosses. The total bibliography now contains 218 references. The status of the Iowa pteridophyte floristics is compared with that in other states in the Upper Midwest and the Great Plains. The Iowa pteridophyte flora consists of 57 species and 8 hybrids, including 47 ferns, 9 horsetails, 1 quillwort, 6 clubmosses, and 2 spikemosses

Additional Iowa Bryophyte References

Fifty-five annotated references are added to the bibliography of literature on Iowa bryophytes. The references treat taxonomic, ecologic, physiologic, and phytogeographic reports on Iowa mosses, liverworts, and hornworts. The status of lowa bryology is compared to bryology in the other states of the Upper Midwest and Great Plains. The Iowa bryophyte flora now consists of 342 bryophytes, including 277 mosses, 63 liverworts, and 3 hornworts. A total of 153 reports to the study of Iowa bryophytes have now been located and annotated

The soft mode in the Sachdev-Ye-Kitaev model and its gravity dual

We give an exposition of the SYK model with several new results. A non-local correction to the Schwarzian effective action is found. The same action is obtained by integrating out the bulk degrees of freedom in a certain variant of dilaton gravity. We also discuss general properties of out-of-time-order correlators.Comment: 57 pages plus appendices, 6 figures. v.2: minor correction, additional references. v.3: minor addition, additional references; v.4: minor corrections; v.5: JHEP versio

Integrable N=2 Supersymmetric Field Theories

Some additional references are included on the last 3 pages.Comment: 14 pages, OUTP-92-12