Are Agricultural PACs Monolithic? An Empirical Investigation

This paper analyzes donation strategies of agricultural PACs by examining and testing a variety of variables theoretically related to contributions and formally testing for equivalence of donation strategies across PACs of varying levels of aggregation. Both chambers of the 108th Congress were modeled, with particular attention paid to the targeting of different power or influence sources within the legislature. Results showed significant heterogeneity across PAC subaggregates within a chamber, as well as between chambers, in terms of overall strategy and magnitude of marginal impacts. Evidence supporting the conditional party government hypothesis where PACs target top Party officials rather than influential legislative members was mixed and subindustry specific, with chairmanships apparently less important in the Senate than in the House.Monolithic Behavior, Political Action Committee, Political Donation Strategies, Tobit model, Agricultural and Food Policy,

AALS Constitutional Law Panel on \u3ci\u3eBrown\u3c/i\u3e, another Council of Nicaea?

When considering the product of the AALS Constitutional Law Panel, entitled What Brown Should Have Said, held in January 2000, in Washington, D.C., we have experienced considerable disorientation. We therefore ask the question asked by Lucretia in Machievelli\u27s play, The Mandragola, Do you mean it or are you laughing at me? We fear that the Panelists may be laughing at us. Because, in short, their writings criticize the formalism that they use in the panel court opinions. In this article, we pick four of the Panelists, more or less at random, and confront the question of whether their writings before and after Brown square with their panel Brown opinions

Scientific virtues :

Chapter I describes diachronic realism and shows why it is a version of what is called 'metaphysical realism'. Consequently, I argue that recent claims that 'metaphysical realism' is incoherent are unfounded. Chapter II argues that certain anti-realist positions (those based on 'incommensurability arguments') involve an insufficient treatment of 'meaning' and 'reference' for theoretical terms. I review much of the current work on theories of reference and show that these incommensurability positions are bankrupt given either of the two most promising theories of reference. Chapter III argues that certain methodological factors ('scientific virtues') are the main considerations in historical cases of theory choice, and can warrant rational belief in a theory if it has achieved a sufficient level of virtues. Chapter IV defends the intuition that a realist interpretation of scientific theories explains their success by expanding the concepts of 'truth' and 'approximate truth'. I introduce the notions of truthlikeness and being on the right track to distinguish theories that were at least partially theoretically correct (though they failed to refer), from theories that were only successful in that they correctly organized experimental data. I use these notions with my diachronic approach to analyze two important historical examples.While there are many versions of scientific realism, most share the intuition that the remarkable success of some scientific theories is best explained by interpreting their theoretical claims as 'true' or 'approximately true'. Due to a variety of recent anti-realist objections, this intuition must be amended so that realist positions can remain conceptually and historically adequate. This dissertation defends a version of scientific realism, which I call diachronic realism, and includes these amendments

Development and Validation of a ReaxFF Reactive Force Field for Cu Cation/Water Interactions and Copper Metal/Metal Oxide/Metal Hydroxide Condensed Phases

To enable large-scale reactive dynamic simulations of copper oxide/water and copper ion/water interactions we have extended the ReaxFF reactive force field framework to Cu/O/H interactions. To this end, we employed a multistage force field development strategy, where the initial training set (containing metal/metal oxide/metal hydroxide condensed phase data and [Cu(H_2O)_n]^(2+) cluster structures and energies) is augmented by single-point quantum mechanices (QM) energies from [Cu(H_2O)_n]^(2+) clusters abstracted from a ReaxFF molecular dynamics simulation. This provides a convenient strategy to both enrich the training set and to validate the final force field. To further validate the force field description we performed molecular dynamics simulations on Cu^(2+)/water systems. We found good agreement between our results and earlier experimental and QM-based molecular dynamics work for the average Cu/water coordination, Jahn−Teller distortion, and inversion in [Cu(H_2O)_6]^(2+) clusters and first- and second-shell O−Cu−O angular distributions, indicating that this force field gives a satisfactory description of the Cu-cation/water interactions. We believe that this force field provides a computationally convenient method for studying the solution and surface chemistry of metal cations and metal oxides and, as such, has applications for studying protein/metal cation complexes, pH-dependent crystal growth/dissolution, and surface catalysis

Analysis of a Low-Pass Filter Employing a 4-pin Capacitor

Capacitors with two or three leads tend to make poor low-pass filters at high frequencies (e.g. greater than 100 MHz) due to the mutual inductance between the input and output sides of the filter. This work proposes a four-lead low-pass filter capacitor design that minimizes the magnetic flux coupling between the input and output. Measurements of a prototype capacitor confirm that it performs significantly better than a typical two-lead capacitor at high frequencies

Synthetic biology - the next phase of biotechnology and genetic engineering. TAB-Fokus

Scientific and technological progress allows to genetically redesign natural organisms in ever more profound ways (synbio in the broader sense). In the long term, the aim is to create artificial biological systems (synbio in the narrow sense). Application areas are chemical and energy production, environmental protection as well as the medical sector. Considering the current, early state of research and development, it is impossible to forecast reliably which approaches of synbio will prevail against procedures that make use of the available biological diversity or that are limited to more subtle interventions. Risk assessment and the evaluation of substantially modified organisms will require the development and exploration of new methods and procedures. Opportunities for different societal groups to participate in the responsible development of synbio are ranging from stakeholder involvement in setting research agendas to DIY biology. Dealing with intellectual property within the framework of an increasingly digital economy will also represent a major challenge for the future use of synbio