Congressional Control of the Courts: A Theoretical and Empirical Analysis of Expansion of the Federal Judiciary

Congress has many available tools to influence the federal judiciary. In this article, we consider Congress\u27 ability to balance, or stack, the courts through the creation of federal judgeships. While caseload pressure often produces the need for more judgeships, we demonstrate that political party alignment between Congress and the president often determines the timing of the judicial expansion. The net effect of expanding during political alignment is to speed up changes in the political balance of the judiciary in favor of the current Congress. We also examine the determinants of expansion size and show that both political alignment and caseload pressure influence Congress\u27 decision regarding how many judgeships to add

Computer simulation of surface and film processes

Adequate computer methods, based on interactions between discrete particles, provide information leading to an atomic level understanding of various physical processes. The success of these simulation methods, however, is related to the accuracy of the potential energy function representing the interactions among the particles. The development of a potential energy function for crystalline SiO2 forms that can be employed in lengthy computer modelling procedures was investigated. In many of the simulation methods which deal with discrete particles, semiempirical two body potentials were employed to analyze energy and structure related properties of the system. Many body interactions are required for a proper representation of the total energy for many systems. Many body interactions for simulations based on discrete particles are discussed

GENERATION OF RECYCLABLES BY RURAL HOUSEHOLDS

Rising landfill costs have forced solid waste managers to consider ways to reduce the waste stream. Using survey data, models explaining the weight of recyclables generated by households are estimated for paper and glass. Results indicate that households respond to the time cost of recycling paper but not glass. The waste generation models imply total monthly willingness to pay for recycling is $5.78 per household. Waste managers may increase the weight of recycled waste stream with programs which lower perceived time costs of nonrecyclers and improve the efficiency of recyclers.Consumer/Household Economics, Environmental Economics and Policy,

EXPLAINING RURAL HOUSEHOLD PARTICIPATION IN RECYCLING

Rising landfill costs have forced solid waste managers to consider waste stream reduction alternatives such as household recycling. Explaining the factors which motivate households to recycle is important to regions where households must bear a large portion of the recycling cost because unit-based garbage disposal fees and curbside recycling are not feasible options. Empirical results indicate that residents are responsive to constraints introduced by the household production technology, such as time costs and storage space, but are not responsive to variables measuring a recycling promotional program. Promotion efforts should switch focus from broader "public good" benefits of recycling to reducing household-level household production constraints.Dropoff recycling, Household recycling participation, Rural regions, Environmental Economics and Policy,

The Structure and Conduct of Corporate Lobbying: How Firms Lobby the Federal Communications Commission

lobbying (internal organization vs. trade association) by firms in administrative agencies. It explores the power and limitations of the collective action theories and transaction cost theories in explaining lobbying. It introduces a dataset of over 900 lobbying contacts cover 101 issues at the Federal Communications Commission (FCC) in early 1998. We find that the structure and conduct of large firm lobbying at the FCC is consistent with the predictions of theories of transaction costs and the main results of theories of collective action. However, large firms do not change their behavior drastically as structures arise to remedy the free rider problem. Small firms show no sensitivity to collective action issues or transaction cost issues in the organization or amount of their lobbying, but they do lobby less when having to reveal proprietary information. In sum, large firms behave largely consistent with theoretical predictions, while small firms do not.

Stability of hexagonal solidification patterns

We investigate the dynamics of cellular solidification patterns using three-dimensional phase-field simulations. The cells can organize into stable hexagonal patterns or exhibit unsteady evolutions. We identify the relevant secondary instabilities of regular hexagonal arrays and find that the stability boundaries depend significantly on the strength of crystalline anisotropy. We also find multiplet states that can be reached by applying well-defined perturbations to a pre-existing hexagonal array.Comment: Minor changes, mainly in introduction and conclusion, one reference adde

Frequency dependence of microflows upon acoustic interactions with fluids

Rayleigh surface acoustic waves (SAWs), generated on piezoelectric substrates, can interact with liquids to generate fast streaming flows. Although studied extensively, mainly phenomenologically, the effect of the SAW frequency on streaming in fluids in constrained volumes is not fully understood, resulting in sub-optimal correlations between models and experimental observations. Using microfluidic structures to reproducibly define the fluid volume, we use recent advances modeling the body force generated by SAWs to develop a deeper understanding of the effect of acoustic frequency on the magnitude of streaming flows. We implement this as a new predictive tool using a finite element model of fluid motion to establish optimized conditions for streaming. The model is corroborated experimentally over a range of different acoustic excitation frequencies enabling us to validate a design tool, linking microfluidic channel dimensions with frequencies and streaming efficiencies. We show that in typical microfluidic chambers, the length and height of the chamber are critical in determining the optimum frequency, with smaller geometries requiring higher frequencies

Sensitivity Analysis and Optimization of Enclosure Radiation with Applications to Crystal Growth

In engineering, simulation software is often used as a convenient means for carrying out experiments to evaluate physical systems. The benefit of using simulations as 'numerical' experiments is that the experimental conditions can be easily modified and repeated at much lower cost than the comparable physical experiment. The goal of these experiments is to 'improve' the process or result of the experiment. In most cases, the computational experiments employ the same trial and error approach as their physical counterparts. When using this approach for complex systems, the cause and effect relationship of the system may never be fully understood and efficient strategies for improvement never utilized. However, it is possible when running simulations to accurately and efficiently determine the sensitivity of the system results with respect to simulation to accurately and efficiently determine the sensitivity of the system results with respect to simulation parameters (e.g., initial conditions, boundary conditions, and material properties) by manipulating the underlying computations. This results in a better understanding of the system dynamics and gives us efficient means to improve processing conditions. We begin by discussing the steps involved in performing simulations. Then we consider how sensitivity information about simulation results can be obtained and ways this information may be used to improve the process or result of the experiment. Next, we discuss optimization and the efficient algorithms which use sensitivity information. We draw on all this information to propose a generalized approach for integrating simulation and optimization, with an emphasis on software programming issues. After discussing our approach to simulation and optimization we consider an application involving crystal growth. This application is interesting because it includes radiative heat transfer. We discuss the computation of radiative new factors and the impact this mode of heat transfer has on our approach. Finally, we will demonstrate the results of our optimization

Strategic Judging Under the United States Sentencing Guidelines: Positive Political Theory and Evidence

We present a positive political theory of criminal sentencing and test it using data from the United States Sentencing Commission. The theory posits that, faced with appellate review, federal district court judges applying the Sentencing Guidelines strategically use sentencing instruments -- fact-based and law-based determinations made during the sentencing phase -- to maximize the judges\u27 sentencing preferences subject to the Guideline’s constraints. Specifically, district court judges are more likely to use law-based departures when they share the same party ideology with the overseeing circuit court than when there is no party alignment between the two courts. Fact-based adjustments, on the other hand, are routinely used to maximize sentencing preferences regardless of party alignment between the two courts. Our regression analyses suggest that the theory is largely supported. We find that: (1) Democrat appointees generally gave lower prison sentences relative to Republican appointees for crimes of violence, theft and drug-trafficking and (2) sentencing instruments were selectively used to raise or lower the prison sentence based on the political ideology of the judge, the type of crime, and whether there was political alignment between the district and circuit court

Bearing tester data compilation, analysis and reporting and bearing math modeling, volume 1

Thermal and mechanical models of high speed angular contact ball bearings operating in LOX and LN2 were developed and verified with limited test data in an effort to further understand the parameters that determine or effect the SSME turbopump bearing operational characteristics and service life. The SHABERTH bearing analysis program which was adapted to evaluate shaft bearing systems in cryogenics is not capable of accommodating varying thermal properties and two phase flow. A bearing model with this capability was developed using the SINDA thermal analyzer. Iteration between the SHABERTH and the SINDA models enable the establishment of preliminary bounds for stable operation in LN2. These limits were established in terms of fluid flow, fluid inlet temperature, and axial load for a shaft speed of 30,000 RPM