Thomas Jefferson

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Gray & Atkinson’s (2003) application of quantitative phylogenetic methods to Dyen, Kruskal & Black’s (1992) IndoEuropean database produced controversial divergence time estimates. Here we test the robustness of these results using an alternative data set of ancient Indo-European languages. We employ two very different stochastic models of lexical evolution(More)
We study a model where a decision maker (DM) must select an adviser to advise her about an unknown state of the world. There is a pool of available advisers who all have the same underlying preferences as the DM; they differ, however, in their prior beliefs about the state, which we interpret as differences of opinion. We derive a tradeoff faced by the DM:(More)
The eclipse of legislatures: Direct democracy in the 21st century JOHN G. MATSUSAKA Marshall School of Business and Law School, University of Southern California, Los Angeles CA 90089-1427 USA Abstract. Demographic, political, and technological trends are fueling an unprecedented growth in direct democracy worldwide. If the trends continue, direct democracy(More)
The Intel Xeon Phi architecture from Intel Corporation features parallelism at the level of many x86-based cores, multiple threads per core, and vector processing units. Lattice Quantum Chromodynamics (LQCD) is currently the only known model independent, non perturbative computational method for calculations in theory of the strong interactions, and is of(More)
■ Abstract The Jefferson Laboratory’s superconducting radiofrequency (srf ) Continuous Electron Beam Accelerator Facility (CEBAF) provides multi-GeV continuouswave (cw) beams for experiments at the nuclear and particle physics interface. CEBAF comprises two antiparallel linacs linked by nine recirculation beam lines for up to five passes. By the early(More)
Part of the Neurology Commons This Article is brought to you for free and open access by the Jefferson Digital Commons. The Jefferson Digital Commons is a service of Thomas Jefferson University's Center for Teaching and Learning (CTL). The Commons is a showcase for Jefferson books and journals, peer-reviewed scholarly publications, unique historical(More)
<lb>Many continuous biomedical outcome measures<lb>have naturally skewed distributions. Current<lb>methodologies for pooling continuous data are<lb>limited to methods for combining differences<lb>in means or standardised differences in means.<lb>These approaches assume normality of the data,<lb>and require arithmetic means and SDs to be<lb>available for(More)
It is well known in the literature that reputational concerns can cause experts to distort or hide their private information in order to appear competent. In this paper we consider the incentives of a career minded overseer to act in the public interest. The sequential nature of oversight means that once an overseer is called to act either to accept or veto(More)
Daniel E. Zak Department of Chemical Engineering, University of Delaware & DBI, Thomas Jefferson University Philadelphia, PA 19107 Francis J. Doyle III Department of Chemical Engineering University of California Santa Barbara, CA 93106 James S. Schwaber Daniel Baugh Institute for Functional Genomics and(More)