Calculating Non-adiabatic Pressure Perturbations during Multi-field Inflation

Isocurvature perturbations naturally occur in models of inflation consisting of more than one scalar field. In this paper we calculate the spectrum of isocurvature perturbations generated at the end of inflation for three different inflationary models consisting of two canonical scalar fields. The amount of non-adiabatic pressure present at the end of inflation can have observational consequences through the generation of vorticity and subsequently the sourcing of B-mode polarisation. We compare two different definitions of isocurvature perturbations and show how these quantities evolve in different ways during inflation. Our results are calculated using the open source Pyflation numerical package which is available to download.Comment: v2: Typos fixed, references and comments added; v1: 8 pages, 10 figures, software available to download at http://pyflation.ianhuston.ne

(WP 2010-09) Does Money Matter? An Empirical Investigation

This paper uses a simultaneous-equations model of the new consensus macroeconomic model to examine whether the inclusion of the money stock in the aggregate demand function improves the statistical fit of the model. The results indicate that the consensus model is accurate for the U.S. in that the inclusion of money does not increase the predictive power of the model. However, the results reveal that the estimated coefficients are more robust when money is included as an instrumental variable in the simultaneous equations consensus model

Does Money Matter? An Empirical Investigation

This paper uses a simultaneous-equations model of the new consensus macroeconomic model to examine whether the inclusion of the money stock in the aggregate demand function improves the statistical fit of the model. The results indicate that the consensus model is accurate for the U.S. in that the inclusion of money does not increase the predictive power of the model. However, the results reveal that the estimated coefficients are more robust when money is included as an instrumental variable in the simultaneous equations consensus modelConsensus Macro Model; Monetary Policy; Phillips Curve; Taylor Rule

XatA, an AT-1 autotransporter important for the virulence of Xylella fastidiosa Temecula1.

Xylella fastidiosa Temecula1 is the causative agent of Pierce's disease of grapevine, which is spread by xylem-feeding insects. An important feature of the infection cycle is the ability of X. fastidiosa to colonize and interact with two distinct environments, the xylem of susceptible plants and the insect foregut. Here, we describe our characterization of XatA, the X. fastidiosa autotransporter protein encoded by PD0528. XatA, which is classified as an AT-1 (classical) autotransporter, has a C-terminal β-barrel domain and a passenger domain composed of six tandem repeats of approximately 50 amino acids. Localization studies indicate that XatA is present in both the outer membrane and membrane vesicles and its passenger domain can be found in the supernatant. Moreover, XatA is important for X. fastidiosa autoaggregation and biofilm formation based on mutational analysis and the discovery that Escherichia coli expressing XatA acquire these traits. The xatA mutant also shows a significant decrease in Pierce's disease symptoms when inoculated into grapevines. Finally, X. fastidiosa homologs to XatA, which can be divided into three distinct groups based on synteny, form a single, well-supported clade, suggesting that they arose from a common ancestor

A Comparison of Predictions for SM Higgs Boson Production at the LHC

This paper describes a comparison of most of the available predictions for the cross section and transverse momentum distribution for a 125 GeV mass Higgs at the LHC, including those from the PYTHIA and HERWIG parton shower Monte Carlos and from four resummation calculations.Comment: 7 pages, submitted to proceedings of the Workshop on Physics at TeV Colliders, Les Houches 200

Wisconsin\u27s Chapter 51 - The Mental Health Act, and the Proposed Fifth Standard of Dangerousness for Civil Commitment Legislation: A Policy Analysis

The purpose of this study was to analyse policy implications qhich sought to explore Chapter 51 of the Wisconsin statutes, the Mental Health Act, and the proposed fifth standard of dangerousness of civil commitment. Civil Commitment is a process that affords the mentally ill with necessary treatment for their illness on a court ordered involuntary basis. The proposed fifth standard legislation would introduce a need for treatment criteria to Wisconsin\u27s current four standards of dangerousness that would be designed to be preventive in nature; to provide treatment at the onset of mental regression vs. allowing a person to become dangerous to self or others before treatment is provided. There are ethical concerns with the proposed legislation: 1) the denial of civil rights, primarily, inappropriate civil commitments, and 2) failure to provide treatment to those in need

Creating An Executive Compensation Plan: A Corporate Tax Planning Case

In this case, the student takes on the role of a compensation committee team member in a publicly-traded corporation. The case task is to create a compensation plan for the company’s CEO using past data regarding CEO compensation and specific incentives from proxy statements, along with financial statement performance data. The case requires the student consider multiple issues, both tax and non-tax. To develop a comprehensive plan for the executive, students must incorporate numerous course topics and apply them to the particular fact pattern. Pre- and post-case responses from students confirm that this case furthers their understanding of the interplay between corporate tax rules and executive compensation while cultivating critical thinking skills. The case has been used in both graduate tax and graduate accounting courses. To accommodate different teaching philosophies and course emphasis (tax or accounting), three variations of the project are provided

Restorative Justice: A Comparative Analysis of Campus Implementation

Restorative justice has been used in many student conduct programs at colleges and universities in the United States. Although there is a strong sense of advocacy for the implementation of campus restorative justice programs, many schools shy away from establishing such programs due to a perceived lack of additional funding, staffing, or other resources. This research examines the factors that contribute to the successful implementation of campus restorative justice programs. The theoretical framework examines the principles of participatory democracy to better understand what might motivate a campus to adopt this alternative strategy of addressing student conduct issues. Comparative analysis of surveys and interviews with schools that currently have established restorative justice programs was conducted. The phrase “restorative justice modularity” is used to describe the flexible nature of restorative justice programs, and their ability to be implemented in a range of campus settings and circumstances. Due to the flexible nature of the restorative justice programs examined in this research, implementation is possible in most colleges and universities given the right conditions of support

Collider Inclusive Jet Data and the Gluon Distribution

Inclusive jet production data are important for constraining the gluon distribution in the global QCD analysis of parton distribution functions. With the addition of recent CDF and D0 Run II jet data, we study a number of issues that play a role in determining the up-to-date gluon distribution and its uncertainty, and produce a new set of parton distributions that make use of that data. We present in detail the general procedures used to study the compatibility between new data sets and the previous body of data used in a global fit. We introduce a new method in which the Hessian matrix for uncertainties is ``rediagonalized'' to obtain eigenvector sets that conveniently characterize the uncertainty of a particular observable.Comment: Published versio