Real time statistical field theory

We have written a {\it Mathematica} program that calculates the integrand corresponding to any amplitude in the closed-time-path formulation of real time statistical field theory. The program is designed so that it can be used by someone with no previous experience with {\it Mathematica}. It performs the contractions over the tensor indices that appear in real time statistical field theory and gives the result in the 1-2, Keldysh or RA basis. We have used the program to calculate the ward identity for the QED 3-point function, the QED 4-point function for two photons and two fermions, and the QED 5-point function for three photons and two fermions. In real time statistical field theory, there are seven 3-point functions, 15 4-point functions and 31 5-point functions. We produce a table that gives the results for all of these functions. In addition, we give a simple general expression for the KMS conditions between $n$-point green functions and vertex functions, in both the Keldysh and RA basesComment: 25 pages, 12 figure

A Diagrammatic Interpretation of the Boltzmann Equation

We study nonlinear response in weakly coupled nonequilibrium $\phi^4$ theory in the context of both classical transport theory and real time quantum field theory, based on a generalized Kubo formula which we derive. A novel connection between these two approaches is established which provides a diagrammatic interpretation of the Boltzmann equation.Comment: 5 pages in RevTex with 4 Postscript figure

Quantum oscillation studies of the Fermi surface of iron-pnictide superconductors

This paper reviews quantum oscillation studies of iron-pnictide superconductors and related materials. These measurements give unique information regarding the full three dimensional topology of the Fermi surfaces and the renormalisation of the quasi-particle masses. The review will cover measurements of the 122 arsenide end members, XFe_2As_2 (X = Ba, Sr, Ca) which have a spin density wave ground state, but will concentrate on the phosphide end members (LaFePO and XFe2P2) which have a paramagnetic ground state and a Fermi surface topology which is similar to the higher Tc superconducting iron-pnictides. All three of the 122 phosphides become superconducting when P is partially substituted by As, and for the BaFe2(As1-xPx)2 series de Haas-van Alphen oscillations are observable for 0:42 \leq x \leq 1 with Tc up to 25 K. The results show the changes in the Fermi surface topology and the increase in the mass renormalisation as the correlations which induce superconductivity develop.Comment: to appear in Reports on Progress in Physic

Inclusion Needs a Different School Culture

Teachers' beliefs and values are affecting the emerging organizational paradigm called inclusive education. A social constructivist perspective on teachers' beliefs acknowledges that teachers have their ideals and this knowledge influences their actions in the implementation of inclusive schooling. This happens within a social and cultural context of the school and the community. This paper addresses a critical aspect of the changes needed for the development of inclusive schooling and the associated professional development for teachers

Book Review : Bellanta, Melissa (2012) Larrikins : A History. Brisbane: University of Queensland Press.

This book has been painstakingly researched by a scholar whose intellectual competencies span several disciplines: history, sociology, criminology, culture, drama and film studies. It is theoretically sophisticated and yet not dense as it reads like a novel with an abundance of interesting complex characters

Intergration of Intentional Research Assignments into Select Nursing Courses

Undergraduate Applie

Checks and Balances: Congress and the Federal Court

This essay was published as a chapter in Reforming the Supreme Court: Term Limits for Justices (Paul D. Carrington & Roger Cramton eds, Carolina Academic Press 2006). Its point is that Congress has long neglected its duty implicit in the constitutional doctrine of separation of powers to constrain the tendency of the Court, the academy and the legal profession to inflate the Court\u27s status and power. The term life tenure is a significant source of a sense of royal status having not only the adverse cultural effects noted by Nagel, but also doleful effects on the administration and enforcement of law in the other federal courts for which the Court and Congress share responsibility. Fixing the superannuation problem will not fix everything, but it would be a benign step in the right direction. I will conclude by suggesting numerous related reforms that might help more, all of which have been proposed to Congress in times past. Perhaps legislation addressing the superannuation problem would make it more likely that other needed reforms might be achieved in the future, by Congress or by a judiciary more aware of its own frailties

A Critical Assessment of the Cultural and Institutional Roles of Appellate Courts (Review Essay)

Reviewing, Daniel Meador et al., Appellate Courts: Structures, Functions, Processes, and Personnel (2d ed. 2006