The Atlantic Mind: Zephaniah Kingsley, Slavery, and the Politics of Race in the Atlantic World

Enlightenment philosophers had long feared the effects of crisscrossing boundaries, both real and imagined. Such fears were based on what they considered a brutal ocean space frequented by protean shape-shifters with a dogma of ruthless exploitation and profit. This intellectual study outlines the formation and fragmentation of a fluctuating worldview as experienced through the circum-Atlantic life and travels of merchant, slaveowner, and slave trader Zephaniah Kingsley during the Era of Revolution. It argues that the process began from experiencing the costs of loyalty to the idea of the British Crown and was tempered by the pervasiveness of violence, mobility, anxiety, and adaptation found in the booming Atlantic markets of the Caribbean during the Haitian Revolution. Tracing Kingsley’s manipulations of identity and race through his peripatetic journey serves to go beyond the infinite masks of his self-invention and exposes the deeply imbedded transatlantic dimensions of power

The Atlantic Legacies of Zephaniah Kingsley: Benevolence, Bondage, and Proslavery Fictions in the Age of Emancipation

Nineteenth-century slaveholders of the Atlantic master class had many reasons to be concerned with the future. In a world ushered in with the aid of the Haitian Revolution, slave revolts in these sensitive times seemed to erupt with increased frequency, leaving greater destruction in their wakes. Abolition and a transatlantic antislavery movement appeared as determined crusades to bring an end not only to human suffering in black chattel slavery but to the system’s unsurpassed wealth. In this era of sweeping changes a vision of British West Indian society without slaves was first debated and then made a reality on 1 August 1834. In the months and years that followed British Emancipation, there was much to debate in the postslavery situation from what seemed like all quarters. Abolitionists scrutinized production levels and profits. Slaveowners clamored for compensation for losing property in persons and, on the whole, feared the complete breakdown of Caribbean society that was sure to follow. In recent years scholars have noted the ways in which the institution of slavery and the practice of slaveholding were quite diverse across time and space. Less attention has been given to variations within slavery’s demise and to the master class’s attempts to control the postslavery landscapes of the Atlantic world. The following dissertation examines the legacies of Zephaniah Kingsley, a planter from northeast Florida who confronted the Age of Emancipation in the last decade of his life with an ambitious proslavery colonization scheme in 1830s Haiti. Establishing a large plantation there stocked with some of his former slaves, Kingsley conducted his elaborate efforts under benevolent pretenses in order to manipulate public opinion but worried about his own sordid actions in the long march of history. Since his death in 1843, generations continue to be haunted by Kingsley’s enigmatic life and the tragedies of his exploits. In studying the ambitious events that occupied his final years, we can better understand the ways in which slaveholders like Kingsley confronted the prospect of emancipation and launched new mechanisms of control

The plant pathogen Pectobacterium atrosepticum contains a functional formate hydrogenlyase-2 complex

13 Pág.Pectobacterium atrosepticum SCRI1043 is a phytopathogenic Gram-negative enterobacterium. Genomic analysis has identified that genes required for both respiration and fermentation are expressed under anaerobic conditions. One set of anaerobically expressed genes is predicted to encode an important but poorly understood membrane-bound enzyme termed formate hydrogenlyase-2 (FHL-2), which has fascinating evolutionary links to the mitochondrial NADH dehydrogenase (Complex I). In this work, molecular genetic and biochemical approaches were taken to establish that FHL-2 is fully functional in P. atrosepticum and is the major source of molecular hydrogen gas generated by this bacterium. The FHL-2 complex was shown to comprise a rare example of an active [NiFe]-hydrogenase-4 (Hyd-4) isoenzyme, itself linked to an unusual selenium-free formate dehydrogenase in the final complex. In addition, further genetic dissection of the genes encoding the predicted membrane arm of FHL-2 established surprisingly that the majority of genes encoding this domain are not required for physiological hydrogen production activity. Overall, this study presents P. atrosepticum as a new model bacterial system for understanding anaerobic formate and hydrogen metabolism in general, and FHL-2 function and structure in particular.This research was funded primarily by the BBSRC through award of a 4-year EASTBIO PhD studentship in 2014 to AJF (#1510231). MA was funded by the European Union Horizon 2020 Research & Innovation Programme under the Marie Skłodowska-Curie Grant agreement #654006. SJC is a Wellcome Trust Senior Research Fellow.Peer reviewe

Exact-exchange density-functional calculations for noble-gas solids

The electronic structure of noble-gas solids is calculated within density functional theory's exact-exchange method (EXX) and compared with the results from the local-density approximation (LDA). It is shown that the EXX method does not reproduce the fundamental energy gaps as well as has been reported for semiconductors. However, the EXX-Kohn-Sham energy gaps for these materials reproduce about 80 % of the experimental optical gaps. The structural properties of noble-gas solids are described by the EXX method as poorly as by the LDA one. This is due to missing Van der Waals interactions in both, LDA and EXX functionals.Comment: 4 Fig

The band structure of BeTe - a combined experimental and theoretical study

Using angle-resolved synchrotron-radiation photoemission spectroscopy we have determined the dispersion of the valence bands of BeTe(100) along $\Gamma X$, i.e. the [100] direction. The measurements are analyzed with the aid of a first-principles calculation of the BeTe bulk band structure as well as of the photoemission peaks as given by the momentum conserving bulk transitions. Taking the calculated unoccupied bands as final states of the photoemission process, we obtain an excellent agreement between experimental and calculated spectra and a clear interpretation of almost all measured bands. In contrast, the free electron approximation for the final states fails to describe the BeTe bulk band structure along $\Gamma X$ properly.Comment: 21 pages plus 4 figure

Plasmon Lifetime in K: A Case Study of Correlated Electrons in Solids Amenable to Ab Initio Theory

On the basis of a new ab initio, all-electron response scheme, formulated within time-dependent density-functional theory, we solve the puzzle posed by the anomalous dispersion of the plasmon linewidth in K. The key damping mechanism is shown to be decay into particle-hole pairs involving empty states of d-symmetry. While the effect of many-particle correlations is small, the correlations built into the "final-state" -d-bands play an important, and novel, role ---which is related to the phase-space complexity associated with these flat bands. Our case study of plasmon lifetime in K illustrates the importance of ab initio paradigms for the study of excitations in correlated-electron systems.Comment: 12 pages, 4 figures, for html browsing see http://web.utk.edu/~weik

Electrochemical polymerisation of phenol in aqueous solution on a Ta/PbO2 anode

This paper deals with the treatment of aqueous phenol solutions using an electrochemical technique. Phenol can be partly eliminated from aqueous solution by electrochemically initiated polymerisation. Galvanostatic electrolyses of phenol solutions at concentration up to 0.1 mol dm−3 were carried out on a Ta/PbO2 anode. The polymers formed are insoluble in acidic medium but soluble in alkaline. These polymers were filtered and then dissolved in aqueous solution of sodium hydroxide (1 mol dm−3). The polymers formed were quantified by total organic carbon (TOC) measurement. It was found that the conversion of phenol into polymers increases as a function of initial concentration, anodic current density, temperature, and solution pH. The percentage of phenol polymerised can reach 15%

A comparison of electrochemical degradation of phenol on boron doped diamond and lead dioxide anodes

This work compares two electrode materials used to mineralize phenol contained in waste waters. Two disks covered with either boron doped diamond (BDD) or PbO2 were used as anodes in a one compartment flow cell under the same hydrodynamic conditions. Efficiencies of galvanostatic electrolyses are compared on the basis of measurements of Total Organic Carbon (TOC) and Chemical Oxygen Demand (COD). Galvanostatic electrolyses were monitored by analysis of phenol and of its oxidation derivatives to evaluate the operating time needed for complete elimination of toxic aromatics. The experimental current efficiency is close to the theoretical value for the BDD electrode. Other parameters being equal, phenol species disappeared at the same rate using the two electrode materials but the BDD anode showed better efficiency to eliminate TOC and COD. Moreover, during the electrolysis less intermediates are formed with BDD compared to PbO2 whatever the current density. A comparison of energy consumption is given based on the criterion of 99% removal of aromatic compounds

Plasmonic excitations in noble metals: The case of Ag

The delicate interplay between plasmonic excitations and interband transitions in noble metals is described by means of {\it ab initio} calculations and a simple model in which the conduction electron plasmon is coupled to the continuum of electron-hole pairs. Band structure effects, specially the energy at which the excitation of the $d$-like bands takes place, determine the existence of a subthreshold plasmonic mode, which manifests itself in Ag as a sharp resonance at 3.8 eV. However, such a resonance is not observed in the other noble metals. Here, this different behavior is also analyzed and an explanation is provided.Comment: 9 pages, 8 figure