Microwave Spectroscopy

Contains reports on two research projects.Joint Services Electronics Programs (U.S. Army, U.S. Navy, and U.S. Air Force) under Contract DA 28-043-AMC-02536(E

Microwave Spectroscopy

Contains research objectives and reports on three research projects.Joint Services Electronics Programs (U. S. Army, U.S. Navy, and U.S. Air Force) under Contract DA 36-039-AMC-03200(E

Evolutionary instability of Zero Determinant strategies demonstrates that winning isn't everything

Zero Determinant (ZD) strategies are a new class of probabilistic and conditional strategies that are able to unilaterally set the expected payoff of an opponent in iterated plays of the Prisoner's Dilemma irrespective of the opponent's strategy, or else to set the ratio between a ZD player's and their opponent's expected payoff. Here we show that while ZD strategies are weakly dominant, they are not evolutionarily stable and will instead evolve into less coercive strategies. We show that ZD strategies with an informational advantage over other players that allows them to recognize other ZD strategies can be evolutionarily stable (and able to exploit other players). However, such an advantage is bound to be short-lived as opposing strategies evolve to counteract the recognition.Comment: 14 pages, 4 figures. Change in title (again!) to comply with Nature Communications requirements. To appear in Nature Communication

\u27Back to the Land\u27: Performance Practice and the Classic Period

Although much valuable work has been done on performance practice in the Classic period, many issues await detailed study

Forecasting Versus Predicting Solute Transport in Solution Conduits for Estimating Drinking-Water Risks

Vnos polutantov v kras ima lahko hitre in uničujoče posledice za pitno vodo. Ker je nevarnost izlitja vedno navzoča, je prav, da upravniki vodnih virov predvidijo scenarije onesnaženja še preden se to v resnici zgodi. Različne scenarije vnosa polutantov v kras lahko predvidimo z uporabo že znanih podatkov in meritev v vodonosniku. Napoved širjenja polutantov je najbolj zanesljiva, če temelji na rezultatih številnih sledenj med različnimi vhodnimi in izhodnimi točkami. Na ta način lahko primerne tranportne parametre določimo z analizo krivulj koncentracij. S kombiniranjem različnih krivulj in uporabo ustrezne aproksimacijske metode, lahko razultate združimo v eno samo krivuljo koncentracij, ki jo uporabimo za predvidenje širjenja polutantov. Širjenje polutantov lahko napovemo tudi z uporabo osnovnih tranportnih parametrov, ki veljajo za kraške prevodnike in ustreznih transportnih enačb. Rezultat so krivulje koncentracij, ki jih tudi uporabimo za napoved posledic možnega vnosa polutantov v kras. Obe metodi smo preizkusili na namišljenem vnosu polutantov v kraški kanal in pri obeh dobili sprejemljive rezultate. Metoda, ki temelji na uporabi transportnih enačb, se je izkazala za boljšo pri oceni potovalnega časa in koncentracije, ki smo ji izpostavljeni. Poleg tega je pri tej metodi delež povrnjenega sledila večji.Contaminant releases in karstic terranes can cause rapid and devastating affects on drinking-water supplies. Because future contaminant releases are likely it is necessary that local water managers develop release scenarios so as to be prepared prior to an actual contaminant release occurring. Release scenarios may be forecasted using appropriate historical data or they may be predicted using selected measured parameters. Forecasting contaminant releases to drinking-water supplies in karstic terranes is best accomplished by conducting numerous tracer tests from each potential source location to each exposure point so that acceptable solute-transport parameters for each solution conduit may be estimated from analyses of the breakthrough curves. Compositing the numerous breakthrough curves and fitting a quintic spline allows development of a single representative breakthrough curve that may then be used to forecast the effects of a release. Predicting contaminant releases is accomplished by combining basic measured field parameters for selected solution conduits in functional relationships for application in solute-transport models. The resulting breakthrough curve and solute-transport parameters can be used to predict the effects of a release. The forecasting and prediction methodologies were tested using a hypothetical release into a solution conduit developed in a karstic aquifer. Both methods were shown to produce reasonably acceptable results. The prediction methodology produced better time-of-travel results and better mass recovery and exposure concentration results than did the forecasting methodology

Microwave Spectroscopy

Contains reports on five research projects.United States Army Signal Corps (Contract DA36-039-sc-87376

Microwave Spectroscopy

Contains reports on four research projects

Emotions and ethics: A Foucauldian framework for becoming an ethical educator

This paper provides examples of how a teacher and a principal construct their ‘ethical selves’. In doing so we demonstrate how Foucault's four-part ethical framework can be a scaffold with which to actively connect emotions to a personal ethical position. We argue that ethical work is and should be an ongoing and dynamic life long process rather than a more rigid adherence to a ‘code of ethics’ that may not meaningfully engage its adherents. We use Foucault's four-part framework of ethical practice as a framework through which an ‘ethical self’ can be purposely constructed. This is important work, as those who have authority over others must know how to monitor themselves against the misuse of the power of their positions

Radiative decay of a massive particle and the non-thermal process in primordial nucleosynthesis

We consider the effects on big bang nucleosynthesis (BBN) of the radiative decay of a long-lived massive particle. If high-energy photons are emitted after the BBN epoch ($t \sim 1 - 10^3$ sec), they may change the abundances of the light elements through photodissociation processes, which may result in a significant discrepancy between standard BBN and observation. Taking into account recent observational and theoretical developments in this field, we revise our previous study constraining the abundance of the radiatively-decaying particles. In particular, on the theoretical side, it was recently claimed that the non-thermal production of $^6$Li, which is caused by the photodissociation of \hefour, most severely constrains the abundance of the radiatively-decaying particle. We will see, however, it is premature to emphasize the importance of the non-thermal production of $^6$Li because (i) the theoretical computation of the $^6$Li abundance has large uncertainty due to the lack of the precise understanding of the $^6$Li production cross section, and (ii) the observational data of $^6$Li abundance has large errors.Comment: 15 pages, using REVTeX and 3 postscript figure

Microwave Spectroscopy

Contains reports on seven research projects.United States Army Signal Corps (Contract DA36-039-sc-74895