Partisan Defection and Change in the 2008 US Presidential Election

Party identification remained an important determinant of vote choice in the 2008 election. Indeed, the extent to which people voted according to their partisanship remained as exceptionally high as it had been in the 2004 election. The Democrats led in partisanship, with a greater lead than in 2004. The ANES four‐wave panel survey shows that some change occurred in the Democratic direction during 2008. The Democrats gained among most population groups, with the exception of older citizens. Obama\u27s victory margin was due to his carrying pure independents and the growth in strong Democrats as opposed to strong Republicans. Both candidates lost the votes of some partisans who disagreed with them ideologically. The rate of defection among major‐party identifiers to the other major party hit post‐1950 lows in 2004 and 2008, reflecting increased polarization in the electorate. The partisanship shifts of young people and Hispanics could portend realignment, although that depends on their satisfaction with the Obama administration

Racial Attitude Effects in the 2008 Presidential Election: Examining the Unconventional Factors Shaping Vote Choice in a Most Unconventional Election

Every election has unique elements, but the 2008 U.S. presidential race had it all: an African-American presidential candidate who won his party’s nomination by defeating a former first lady, an historically unpopular outgoing president, two ongoing wars, a failing economy, and a war hero running for president with a female vice-presidential running mate. With so many unique elements to account for, disentangling their independent effects to identify the dominant factors shaping the 2008 election is a tremendous challenge. This paper explores a wide variety of factors potentially influencing the 2008 vote, but it devotes particular attention to two exceptionally relevant factors: racial attitudes and succession effects. We begin this paper with a discussion of racial attitudes and succession effects’ relevance to vote choice. Then we test the effects of racial attitudes and succession effects, as well as other important factors, on vote choice in 2008, by analyzing the 2008 American National Election Studies (ANES) traditional September–October pre-election survey and November–December post-election survey.1 Finally, we test whether the racial attitude effects found in our 2008 results are unique to the Obama candidacy, or if similar results would be obtained by comparable analysis of the two most recent elections not contested by an incumbent president, the elections of 1988 and 2000, or in the preceding election of 2004. Stated concisely, our analysis shows that, of all the unusual factors shaping vote choice in 2008, two particularly important ones were racial attitudes and dissatisfaction with the Bush Administration. The comparison with 1988 and 2000 shows that attitudes toward the previous administration generally affect voting even when the incumbent is not running, and regardless of whether the incumbent party’s presidential candidate was a member of the outgoing presidential administration. The comparison with previous elections, including 2004, also provides an important demonstration that the racial attitudes effect was specific to 2008. Clearly, the historic nomination of an African-American for the presidency made racial attitudes more important in voting than they had been in analogous elections

Controls on channel deposits of highly variable rivers: Comparing hydrology and event deposits in the Burdekin River, Australia

Discharge event frequency, magnitude and duration all control river channel morphology and sedimentary architecture. Uncertainty persists as to whether alluvial deposits in the rock record are a time-averaged amalgam from all discharge events, or a biased record of larger events. This paper investigates the controls on channel deposit character and subsurface stratigraphic architecture in a river with seasonal discharge and very high inter-annual variability, the Burdekin River of north-east Australia. In such rivers, most sediment movement is restricted to a few days each year and at other times little sediment moves. However, the maximum discharge magnitude does not directly correlate with the amount of morphological change and some big events do not produce large deposits. The Burdekin channel deposits consist of five main depositional elements: (i) unit bars; (ii) vegetation-generated bars; (iii) gravel sheets and lags; (iv) antidune trains; and (v) sand sheets. The proportions of each depositional element preserved in the deposits depend on the history of successive large discharge events, their duration and the rate at which they wane. Events with similar peak magnitude but different rate of decline preserve different event deposits. The high intra-annual and inter-annual discharge variability and rapid rate of stage change make it likely that small to moderate-scale bed morphology will be in disequilibrium with flow conditions most of the time. Consequently, dune and unit bar size and cross-bed set thickness are not good indicators of event or channel size. Antidunes may be more useful as indicators of flow conditions at the time they formed. Rivers with very high coefficient of variance of maximum discharge, such as the Burdekin, form distinctive channel sediment bodies. However, the component parts are such that, if they are examined in isolation, they could lead to misleading interpretation of the nature of the depositional environment if conventional interpretations are used

Juvenile Finfish and Blue Crab Stock Assessment Program Bottom Trawl Survey Annual Data Summary Report Series Volume 1993

The Virginia Institute of Marine Science (VIMS) has conducted a trawl survey dating back to 1955. Over these forty years methods and objectives have varied according to funding sources and state and/or federal mandates. The present thrust of the program is to provide juvenile indices of relative abundance for recreationally, commercially, and ecologically important finfish and invertebrates. These measures of juvenile abundance are widely used as a key element in the management of the Atlantic States\u27 coastal fishery resources. Estimates of juveniles (age-0) have been found to provide a reliable and early indicator of future year class strength. A review of previously available indices of juvenile abundance for important fishery resource species of the Chesapeake Bay by the Chesapeake Bay Stock Assessment Committee (CBSAC), a federal/state committee sponsored and funded by the National Oceanic and Atmospheric Administration (NOAA), resulted in the recommendation that, a unified, consistent trawl program should be one of the primary monitoring tools for finfish and crab stock assessment. (Chesapeake Bay Program Stock Assessment Plan, Chesapeake Executive Council 1988). There were several notable results in the survey this year. Two groups of invertebrates were officially added to the collection list. The penaeid shrimp are only of minor significance in Chesapeake Bay, but in certain years (1991) their abundance has been high enough to rank in the top twenty species caught. The squid species of the family Lologinidae have been include due to their overall abundance in the main stem bay (ranked 11th overall), Atlantic coast commercial value, and ecological factors. Both these groups of species were collected in past years but on an inconsistent basis. Other results worth mentioning include a large increase in the scup abundance, over six times that of the previous year. Although older summer flounder appeared abundant, there was a substantial decrease in juvenile abundance near the historic low of 1988. The blue crab population continues to be depressed, although catch rates were slightly higher than in recent years. In the tributaries, there has been a marked increase in young-of-the-year (YOY) striped bass and white perch which began in November and continued into the early months of 1994. Atmospherically, 1993 included a mild winter followed by an unusually cool, wet spring. The summer was one of drought conditions and record highs, making it the second hottest summer in recorded history. The purpose of this summary is to provide an accurate account of trawl survey sampling performed during the calendar year 1993. Previous volumes of this series have served as excellent reference guides to resource managers, scientists, academics, as well as the general public. Since there are other venues which presently detail specific results of these data (Geer et al, 1993), conclusions are kept at a minimum in order to provide the most information in the available space

The Poisson-Boltzmann model for implicit solvation of electrolyte solutions: Quantum chemical implementation and assessment via Sechenov coefficients.

We present the theory and implementation of a Poisson-Boltzmann implicit solvation model for electrolyte solutions. This model can be combined with arbitrary electronic structure methods that provide an accurate charge density of the solute. A hierarchy of approximations for this model includes a linear approximation for weak electrostatic potentials, finite size of the mobile electrolyte ions, and a Stern-layer correction. Recasting the Poisson-Boltzmann equations into Euler-Lagrange equations then significantly simplifies the derivation of the free energy of solvation for these approximate models. The parameters of the model are either fit directly to experimental observables-e.g., the finite ion size-or optimized for agreement with experimental results. Experimental data for this optimization are available in the form of Sechenov coefficients that describe the linear dependence of the salting-out effect of solutes with respect to the electrolyte concentration. In the final part, we rationalize the qualitative disagreement of the finite ion size modification to the Poisson-Boltzmann model with experimental observations by taking into account the electrolyte concentration dependence of the Stern layer. A route toward a revised model that captures the experimental observations while including the finite ion size effects is then outlined. This implementation paves the way for the study of electrochemical and electrocatalytic processes of molecules and cluster models with accurate electronic structure methods

Dispersion and separation of nanostructured carbon in organic solvents

The present invention relates to dispersions of nanostructured carbon in organic solvents containing alkyl amide compounds and/or diamide compounds. The invention also relates to methods of dispersing nanostructured carbon in organic solvents and methods of mobilizing nanostructured carbon. Also disclosed are methods of determining the purity of nanostructured carbon

Production of tetra-methylpyrazine using engineered Corynebacterium glutamicum.

Corynebacterium glutamicum ATCC 13032 is an established and industrially-relevant microbial host that has been utilized for the expression of many desirable bioproducts. Tetra-methylpyrazine (TMP) is a naturally occurring alkylpyrazine with broad applications spanning fragrances to resins. We identified an engineered strain of C. glutamicum which produces 5 ​g/L TMP and separately, a strain which can co-produce both TMP and the biofuel compound isopentenol. Ionic liquids also stimulate TMP production in engineered strains. Using a fed batch-mode feeding strategy, ionic liquid stimulated strains produced 2.2 ​g/L of tetra-methylpyrazine. We show that feedback from a specific heterologous gene pathway on host physiology leads to acetoin accumulation and the production of TMP