Dynamics, cycles and sunspot equilibria in "genuinely dynamic, fundamentally disaggregative" models of money

This paper pursues a line of Cass and Shell, who advocate monetary models that are "genuinely dynamic and fundamentally disaggregative" and that incorporate "diversity among households and variety among commodities." Recent search-theoretic models fit this description. The authors show that, like overlapping generations models, search models generate interesting dynamic equilibria, including cycles, chaos, and sunspot equilibria. This helps explain how alternative models are related and lends support to the notion that endogenous dynamics and uncertainty matter, perhaps especially in monetary economies. Th authors also suggest that such equilibria in search models may be more empirically relevant than in some other models.Monetary theory

A Rediscovery of Caddo Heritage: The W. T. Scott Collection at the American Museum of Natural History

Back in August 1997, the Caddo Nation of Oklahoma had submitted a Native American Graves Protection and Repatriation Act (NAGPRA) claim for a cranium that had been obtained by the American Museum of Natural History (AMNH) in New York City in 1877. Very little information was known about these remains, other than it had been obtained as a purchase/gift to the museum by Charles C, Jones Jr. and was found in a mound somewhere near the Shreveport vicinity in Caddo or Bossier Parish, Louisiana. Based on the presence of artificial cranial deformation, the museum dated these human remains to a period of between A.D. 800 and the contact period. Because of the cranial deformation, and the archeological investigations that had taken place in the past in Louisiana, the museum had determined that the remains were culturally affiliated to the Caddo Nation. Through consultation with the Caddo Nation of Oklahoma and the Cultural Resources Office staff at the AMNH, in February 200 l the Notice of Inventory Completion was published for these human remains in the Federal Register

Marine Shell Ear Disks from Protohistoric Caddo Sites on Stoots Creek, Hopkins County, Texas

In this article, we discuss three engraved marine shell ear disks from two protohistoric (ca. A.D. 1670-1700) Caddo sites on Stouts Creek in Hopkins County, Texas. These rather unique engraved marine shell disks have only been reported from three other archaeological sites in the entire southern Caddo area. Stouts Creek is a tributary to White Oak Creek. The drainage is situated in the modern Post Oak Savanna, at the far western edge of the distribution of Late Caddo Titus phase sites in Northeast Texas. The Stouts Creek marine shell ear disks we report on have been recovered from two different sites in the Stouts Creek valley. One came from a Caddo midden near the Culpepper site (41HP1), a protohistoric Caddo site excavated by The University of Texas in 1931. This particular marine shell disk has a central perforation and a 13.7 mm diameter engraved circle on its outer surface

Sherd Assemblages from Sites in Bowie, Cass, Gregg, Lamar, and Red River Counties in East Texas Held by the Sam Noble Oklahoma Museum of Natural History

The Sam Noble Oklahoma Museum of Natural History (SNOMNH) has in their collections several assemblages of ancestral Caddo ceramic vessel sherds from sites in East Texas. We recently had an opportunity to examine and document these collections during a trip to the SNOMNH, and in this article, we put those findings on record

Caddo Ceramic Vessels from the A. C. Gibson Site (41WD1) in the Sabine River Valley, Wood County, Texas

The A. C. Gibson site (41WD1) is an ancestral Caddo site located on a natural knoll at the base of an upland landform, adjacent to the floodplain of the Sabine River and Cedar Lake, an old channel of the river, in southwestern Wood County, in the Post Oak Savannah of East Texas. Two Caddo ceramic vessels are in the collections from the site held by the Texas Archeological Research Laboratory at The University of Texas at Austin. These vessels are documented in this article

Documentation of the Native American Ceramic Vessels from Northeastern Texas, Southern Arkansas, and Eastern Oklahoma in the Boyce Smith Museum in Troup, Texas

The Boyce Smith Museum opened in 1968 with the purpose of displaying a large collection of Historic artifacts as well as Native American artifacts collected and/or purchased over the years by Mr. Boyce Smith of Troup, Texas, now deceased. After learning of the museum in 2002, and taking a short visit to the museum at that time, it was apparent that the Boyce Smith Museum contained an important collection of Native American ceramic vessels that warranted documentation. With the permission of Jo Beth Smith, the wife of Boyce Smith, and their son Rial Smith, we returned to the Boyce Smith Museum on December 10-11, 2007, to document 157 ceramic vessels from Caddo sites in eight counties in Northeastern Texas (n=136), Caddo and Mississippian sites in five counties in southern Arkansas (n=20), and from the Spiro site in LeFlore County, in eastern Oklahoma (n=1) (Figure 1 and Table 1). In almost all instances, the only available provenience information for the vessels in the Boyce Smith Museum is the state and county, although in a very few cases, a specific site and/or location within a county is included in Mr. Smith’s collection notes

Transient x-ray absorption spectroscopy of hydrated halogen atom

Time-resolved x-ray absorption spectroscopy monitors the transient species generated by one-photon detachment of an electron from aqueous bromide. Hydrated bromine atoms with a lifetime of ca. 17 ns were observed, nearly half of which react with excess Br- to form Br2-. The K-edge spectra of the Br atom and Br2- anion exhibit distinctive resonant transitions that are absent for the Br- precursor. The absorption spectra indicate that the solvent shell around a Br0 atom is defined primarily by hydrophobic interactions, in agreement with a Monte Carlo simulation of the solvent structure.Comment: 6 pages, 4 figures + supplement, will be submitted to PR

Utility-Based Utility

A major virtue of von Neumann-Morgenstern utilities, for example, in the theory of general financial equilibrium (GFE), is that they ensure time consistency: consumption-portfolio plans (for the future) are in fact executed (in the future) — assuming that there is perfect foresight about relevant endogenous variables. This paper proposes an alternative to expected utility, one which also delivers consistency between plan and execution — and more. In particular, the formulation affords an extremely natural setting for introducing extrinsic uncertainty. The key idea is to divorce the concept of filtration (of the state space) from any considerations involving probability, and then concentrate attention on nested utilities of consumption looking forward from any date-event: utility today depends only on consumption today and prospective utility of consumption tomorrow, utility tomorrow depends only on consumption tomorrow and prospective utility of consumption the day after tomorrow, and so on.Utility theory, Expected utility, Time consistency, Extrinsic uncertainty, Cass-Shell Immunity Theorem

A Preliminary Exergy Analysis of the EU DEMO Fusion Reactor

Purpose of the present study is the exergy analysis of EU DEMO pulsed fusion power plant considering the Primary Heat Transfer Systems, the Intermediate Heat Transfer System (IHTS) including the Energy Storage System (ESS) as a first option to ensure the continuity of electric power released to the grid. A second option here considered is a methane fired auxiliary boiler replacing the ESS. The Power Conversion System (PCS) performance is evaluated as well in the overall balance. The performance analysis is based on the exergy method to specifically assess the amount of exergy destruction determined by irreversible phenomena along the whole cyclic process. The pulse and dwell phases of the reactor operation are evaluated considering the state of the art of the ESS adopting molten salts alternate heating and storage in a hot tank followed by a cooling and recovery of molten salt in a cold tank to ensure the continuity of power release to the electrical grid. The second option of the plant configuration is evaluated on the basis of an auxiliary boiler replacing the ESS with a 10% of the power produced by the reactor during both pulse and dwell modes

The Peterson Ranch Site (41HS253), A Late 17th to Early 18th Century Ancestral Caddo Cemetery in the Little Cypress Creek Basin, Harrison County, Texas

The Peterson Ranch site (41HS253) is a late 17th to early 18th century Caddo cemetery in the Little Cypress Creek basin in the East Texas Pineywoods. The cemetery, on Gray’s Creek, was found and excavated in 1962 by a number of collectors from the Marshall, Texas, area. In 1963 the cemetery area was destroyed by the construction of an oil well pad. Most of the collectors kept cursory notes on their excavations at the site, which consisted of plan maps showing the orientation of the burial pits, the human remains in the graves, and the location and kinds of some of the funerary offerings placed in the grave to accompany the deceased to the House of Death in the Sky. Fray Casanas commented in 1691 that the Caddo buried “their dead with all their arms and utensils which each possesses.” The kinds of items placed in Caddo burials, especially the vessels—since they are by far the most common burial offerings—can provide unique insights into how different Caddo groups treated the dead, and what such differences may mean regarding diverse view on life and death among contemporaneous Caddo groups. The information on the cemetery excavations and burial offerings from the Peterson Ranch site has been reconstructed from notes and drawings on file at the Texas Archeological Research Laboratory at The University of Texas at Austin (TARL). To my knowledge, the funerary offerings from the burials at the site have not been documented by a professional archaeologist, and it is presently unknown what the current provenience(s) of the collections are