Lifshitz holographic renormalization from anti-de Sitter 1

Lifshitz space–times with critical exponent z = 2 can be obtained by dimensional reduction of Schrödinger space–times with critical exponent z = 0. The latter space–times are asymptotically anti-de Sitter (AdS) solutions of AdS gravity coupled to an axion–dilaton system (or even just a massless scalar field). This basic observation is used to perform holographic renormalization for four-dimensional asymptotically locally Lifshitz space–times by dimensional reduction of the corresponding problem of holographic renormalization for five-dimensional asymptotically AdS space–times coupled to an axion–dilaton system. In this setup the four-dimensional structure of the Lifshitz – Fefferman-Graham expansion and the structure of the counterterm action, including the scale anomaly, will be summarized.

Correlating the Ancient Maya and Modern European Calendars with High-Precision AMS 14C Dating

The reasons for the development and collapse of Maya civilization remain controversial and historical events carved on stone monuments throughout this region provide a remarkable source of data about the rise and fall of these complex polities. Use of these records depends on correlating the Maya and European calendars so that they can be compared with climate and environmental datasets. Correlation constants can vary up to 1000 years and remain controversial. We report a series of high-resolution AMS C-14 dates on a wooden lintel collected from the Classic Period city of Tikal bearing Maya calendar dates. The radiocarbon dates were calibrated using a Bayesian statistical model and indicate that the dates were carved on the lintel between AD 658-696. This strongly supports the Goodman-Martinez-Thompson (GMT) correlation and the hypothesis that climate change played an important role in the development and demise of this complex civilization.

Current Resources

Reviews of: The Book of David: How Preserving Families Can Cost Children's Lives. Richard J. Gelles. New York: Basic Books. Reviewed by Marianne Berry Children in Families at Risk: Maintaining the Connections. Edited by Lee Combrinck-Graham. New York: TheGuilford Press. Reviewed by Lois Wright Fantily-Centered Behavior Scale and User's Manual. Reva I. Allen, Christopher G. Peter, & Beverlyn F. Cay Brown. The University of Kansas. Reviewed by Miriam J. Landsman

Die alten Propheten und Schriftgelehrten und Das Leben Jesu für das deutsche Volk von David Strauss

Randbemerkungen von Jacob Weil

David Friedländer : sein Leben u. sein Wirken im Zusammenhange mit d. gleichzeitigen Culturverhältnissen u. Reformbestrebungen um Judenthum

dargestellt von Emmanuel Heinrich Ritter