Saltwater Slavery: A Middle Passage from Africa to American Diaspora.

About the Author: John R. Legg holds a Bachelor’s of Arts in History from Middle Georgia State University and is currently awaiting admission decisions from eight graduate programs. He plans to continue studying the transformative events of Native Americans during the era of the Civil War and period of Reconstruction, with emphasis on the U.S.-Dakota War of 1862. With his love of photography within a historical realm, he self-published his first book, Images of the Historic Southeast: The Carolinas, with Dr. Niels Eichhorn, and is currently co-authoring a book with Dr. Carol Willcox Melton titled, Through a Siberian Lens: A First-Hand Perspective of the Russian Civil War. You can follow him on twitter: @thejohnlegg

Advanced composite aileron for L-1011 transport aircraft: Aileron manufacture

The fabrication activities of the Advanced Composite Aileron (ACA) program are discussed. These activities included detail fabrication, manufacturing development, assembly, repair and quality assurance. Five ship sets of ailerons were manufactured. The detail fabrication effort of ribs, spar and covers was accomplished on male tools to a common cure cycle. Graphite epoxy tape and fabric and syntactic epoxy materials were utilized in the fabrication. The ribs and spar were net cured and required no post cure trim. Material inconsistencies resulted in manufacturing development of the front spar during the production effort. The assembly effort was accomplished in subassembly and assembly fixtures. The manual drilling system utilized a dagger type drill in a hydraulic feed control hand drill. Coupon testing for each detail was done

ZILPHIA HORTON, A VOICE FOR CHANGE

This dissertation examines the role of Zilphia Horton (1910-1956) in helping to establish the use of music as a powerful tool to unify and train groups involved in social reform at seminars led by Highlander Folk School. In engaging in what has been termed the “mobilization of music,” Mrs. Horton was active in labor disputes, training seminars in the United States and Canada, and the formation of women’s union auxiliaries from 1935 until 1956. The study uses correspondence written by Horton to her husband, Myles Horton; business letters to labor union officials and contributors to songsters; and writings revealing her methodology for compiling songsters, all of which are found in the Tennessee State Library and Archives and the Wisconsin Historical Society archives. The study will demonstrate the way in which Horton used music on picket lines and seminars by drawing on a long-standing tradition of using contrafacta applied to Appalachian music, hymns, spirituals, and other folk musics of the United States. Her use of traditional folk song and dance also created unity in groups that visited Highlander Folk School. Horton established a tradition of folksong as protest music that influenced the methodology of later music directors at Highlander Folk School, particularly the use of music for social reform during the Civil Rights Movement of the late 1950s and early 1960s

The effect of competition on the control of invading plant pathogens

1. New invading pathogen strains must compete with endemic pathogen strains to emerge and spread. As disease control measures are often non-specific, i.e. they do not distinguish between strains, applying control not only affects the invading pathogen strain but the endemic as well. We hypothesise that the control of the invasive strain could be compromised due to the non-specific nature of the control. 2. A spatially-explicit model, describing the East African cassava mosaic virus-Uganda strain (EACMV-UG) outbreak, is used to evaluate methods of controlling both disease incidence and spread of invading pathogen strains in pathosystems with and without an endemic pathogen strain present. 3. We find that while many newly introduced or intensified control measures (such as resistant cultivars or roguing) decrease the expected incidence, they have the unintended consequence of increasing, or at least not reducing, the speed with which the invasive pathogen spreads geographically. We identify which controls cause this effect and methods in which these controls may be applied to prevent it. 4. We found that the spatial spread of the invading strain is chiefly governed by the incidence at the wave front. Control can therefore be applied, or intensified, once the wave front has passed without increasing the pathogen’s rate of spread. 5. When trade of planting material occurs, it is possible that the planting material is already infected. The only forms of control in this study that reduces the speed of geographic spread, regardless of the presence of an endemic strain, are those that reduce the amount of trade and the distance over which trade takes place. 6. Synthesis and applications. Imposing trade restrictions before the epidemic has reached a given area and increasing other control methods only once the wave front has passed is the most effective way of both slowing down spread and controlling incidence when the presence of an endemic strain is unknow

Sea Beam Survey of an Active Strike-Slip Fault: The San Clemente Fault in the California Continental Borderland

The San Clemente fault, located in the California Continental Borderland, is an active, northwest trending, right-lateral, wrench fault. Sea Beam data are used to map the major tectonic landforms associated with active submarine faulting in detail unavailable using conventional echo-sounding or seismic reflection data. In the area between North San Clemente Basin and Fortymile Bank, the major late Cenozoic faults are delineated by alignments of numerous tectonic landforms, including scarps, linear trenches, benches, and sags. Character and spatial patterns of these landforms are consistent with dextral wrench faulting, although vertical offsets may be substantial locally. The main trace of the San Clemente fault cuts a straight path directly across the rugged topography of the region, evidence of a steeply dipping fault surface. Basins or sags located at each right step in the en echelon pattern of faults are manifestations of pull-apart basin development in a right-slip fault zone. Seismic reflection profiles show offset reflectors and a graben in late Quaternary turbidites of the Navy Fan, where the fault zone follows a more northerly trend. Modern tectonic activity along the San Clemente fault zone is demonstrated by numerous earthquakes with epicenters located along the fault\u27s trend. The average strike of the San Clemente fault is parallel to the predicted Pacific-North American relative plate motion vector at this location. Therefore we conclude that the San Clemente fault zone is a part of the broad Pacific-North American transform plate boundary and that the southern California region may be considered as a broad shear zone

International legislation on white slavery and anti-trafficking in the early 20th century

The chapter focuses on the emergence of international legislation against trafficking in the early twentieth century, focusing on the years between 1904 and 1949. The chapter will introduce key legal measures adopted during that time but focus on the enactment of the International Agreement for the Suppression of the “White Slave Traffic” 1904 and the International Convention for the Suppression of the White Slave Traffic 1910. These measures, unlike modern anti-trafficking legal standards that recognize more comprehensive forms of exploitation, focused solely on recruitment for prostitution and the exploitation of prostitution. The chapter argues that the early-twentieth-century legal framework was mostly a result of civil society action in the field and that the framework enabled the control of immigration and emigration of young women. The chapter will further show how the terminology changed from “white slavery” to a more neutral “traffic” with the League of Nations. Despite this change, immigration control and nationalism continued to underline much of the rhetoric even after the League of Nations took over the legal framework in 1921

The Impact of Topographic Steepness on Tidal Dissipation at Bumpy Topography

Breaking internal waves are an important contributor to mixing in the stratified ocean interior. We use two-dimensional, nonhydrostatic numerical simulations to examine the breaking of internal waves generated by tidal flow over sinusoidal bottom topography. We explore the sensitivity of the internal wave breaking to the topographic steepness and Coriolis frequency, focusing on the vertical structure of kinetic energy dissipation and the ratio of local dissipation to the barotropic-to-baroclinic energy conversion. When the tidal frequency is twice the local Coriolis frequency, wave breaking above the topography is driven by wave–wave interactions which transfer wave energy from the tidal forcing frequency to the inertial frequency. The greater shear associated with the inertial frequency waves leads to enhanced dissipation in a thick layer above the topography. The topographic steepness strongly modulates this dependence of dissipation on Coriolis frequency; for some steep sinusoidal topographies, most wave energy propagates downward into the topographic troughs, eliminating the possibility for significant breaking above the topographic peaks. Current parameterizations of tidal dissipation in use in global ocean models need to be adapted to include the dependence of the local dissipation on both the Coriolis frequency and the topographic steepness

High-resolution mapping of two large-scale transpressional fault zones in the California Continental Borderland: Santa Cruz-Catalina Ridge and Ferrelo faults

New mapping of two active transpressional fault zones in the California Continental Borderland, the Santa Cruz-Catalina Ridge fault and the Ferrelo fault, was carried out to characterize their geometries, using over 4500 line-km of new multibeam bathymetry data collected in 2010 combined with existing data. Faults identified from seafloor morphology were verified in the subsurface using existing seismic reflection data including single-channel and multichannel seismic profiles compiled over the past three decades. The two fault systems are parallel and are capable of large lateral offsets and reverse slip during earthquakes. The geometry of the fault systems shows evidence of multiple segments that could experience throughgoing rupture over distances exceeding 100 km. Published earthquake hypocenters from regional seismicity studies further define the lateral and depth extent of the historic fault ruptures. Historical and recent focal mechanisms obtained from first-motion and moment tensor studies confirm regional strain partitioning dominated by right slip on major throughgoing faults with reverse-oblique mechanisms on adjacent structures. Transpression on west and northwest trending structures persists as far as 270 km south of the Transverse Ranges; extension persists in the southern Borderland. A logjam model describes the tectonic evolution of crustal blocks bounded by strike-slip and reverse faults which are restrained from northwest displacement by the Transverse Ranges and the southern San Andreas fault big bend. Because of their potential for dip-slip rupture, the faults may also be capable of generating local tsunamis that would impact Southern California coastlines, including populated regions in the Channel Islands