Suchergebnisse

Intro -- Title -- Contents -- Preface -- Chapter I - How the Shipwrecked Fared in Days of Old, and the Growth of Sympathy on Their Behalf -- Chapter II - Wreckers -- Chapter III - The Inventor of the Life-Boat -- Chapter IV - The Growth of the Life-Boat Movement -- Chapter V - The Invention and Launching of the Prize Life-Boat -- Chapter VI - The Ramsgate Life-Boat at Work-Storm Warriors to the Rescue -- Chapter VII - The Rescue of the Crew of the "Samaritano," and the Return -- Chapter VIII - A Night on the Goodwin Sands -- Chapter IX - The Wreck Abandoned, and the Life-Boat Despaired Of -- Chapter X - Signals of Distress-Out in the Storm -- Chapter XI - The Emigrant Ship -- Chapter XII - The Rescue of the Crew of the "Demerara," and the Emigrants' Welcome to Ramsgate -- Chapter XIII - The Wreck of the "Mary"-Gales Abroad -- Chapter XIV - The Wreck of the "Mary"-A Struggle for Dear Life -- Chapter XV - Deal Beach -- Chapter XVI - The Loss of the "Linda," and the Race to the Rescue -- Chapter XVII - The Rescue of the Crew of the "Amoor -- Chapter XVIII - The Rescue of the Crew of the "Effort"-The Dangers of Hovelling -- Chapter XIX - The Hovellers, or Salvors, Saved the "Princess Alice" Hovelling Lugger -- Chapter XX - The Saving of "La Marguerite" (A Hovel) -- Chapter XXI - The Wreck Brought In -- Chapter XXII - The Wreck of the "Providentia -- Chapter XXIII - Hardly Saved -- Chapter XXIV - Saved at Last the Fatal Goodwin Sands -- Chapter XXV - Saved at Last We Will Not Go Home Without Them -- Chapter XXVI - Saved at Last Victory or Death -- Chapter XXVII - Of Some of the Life-Boat Men -- Chapter XXVIII - The National Life-Boat Institution -- Endnotes.

"The White Man's Magic Word: Southern Knowledge and White Racial Melancholy" re-evaluates the uses to which the memory of slavery is put in white-authored modernist literature. In chapters on Flannery O'Connor, William Faulkner, Robert Penn Warren and F. Scott Fitzgerald, I develop a literary history of white liberal racial attitudes that continue to define the racial discourse of the present. Through these readings, I develop a theory of white racial melancholy: a condition of personally painful and politically paralyzing attachment to intellectual concepts the white subject feels to be corrupted by white supremacy, but without which they cannot imagine either politics or literature.

"Prepared under Contract No. NSR 06-004-039 by Denver Research Institute, University of Denver for National Aeronautics and Space Administration." ; Includes bibliographical references. ; Mode of access: Internet.

Understanding genetic and environmental effects on white matter development in the first years of life is of great interest, as it provides insights into the etiology of neurodevelopmental disorders. In this study, the genetic and environmental effects on white matter were estimated using data from 173 neonatal twin subjects. Diffusion tensor imaging scans were acquired around 40 days after birth and were non-rigidly registered to a group-specific atlas and parcellated into 98 ROIs. A model of additive genetic, and common and specific environmental variance components was used to estimate overall and regional genetic and environmental contributions to diffusion parameters of fractional anisotropy, radial diffusivity, and axial diffusivity. Correlations between the regional heritability values and diffusion parameters were also examined. Results indicate that individual differences in overall white matter microstructure, represented by the average diffusion parameters over the whole brain, are heritable, and estimates are higher than found in studies in adults. Estimates of genetic and environmental variance components vary considerably across different white matter regions. Significant positive correlations between radial diffusivity heritability and radial diffusivity values are consistent with regional genetic variation being modulated by maturation status in the neonatal brain: the more mature the region is, the less genetic variation it shows. Common environmental effects are present in a few regions that tend to be characterized by low radial diffusivity. Results from the joint diffusion parameter analysis suggest that multivariate modeling approaches might be promising to better estimate maturation status and its relationship with genetic and environmental effects.

Twin studies suggest that global and regional brain volumes are highly heritable. However, estimates of heritability vary across development. Given that all twin studies are open to the potential criticism of non-generalizability due to differences in intrauterine environment between twins and singletons, these age effects may reflect the influence of perinatal environmental factors, which are unique to twins and which may be especially evident early in life. To address this question, we compared brain volumes and the relationship of brain volumes to gestational age in 136 singletons (67 male, 69 female) and 154 twins (75 male, 79 female; 82 DZ, 72 MZ) who had received high resolution MRI scans of the brain in the first month of life. Intracranial volume, total white matter, and ventricle volumes did not differ between twins and singletons. However, cerebrospinal fluid and frontal white matter volume was greater in twins compared to singletons. While gray matter volumes at MRI did not differ between groups, the slope of the relationship between total and cortical gray matter and gestational age at the MRI scan was steeper in MZ twins compared to DZ twins. Post-hoc analyses suggested that gray matter development is delayed in MZ twins in utero and that they experience 'catch-up' growth in the first month of life. These differences should be taken into account when interpreting and designing studies in the early postnatal period.

A variety of "key recovery," "key escrow," and "trusted third-party" encryption requirements have been suggested in recent years by government agencies seeking to conduct covert surveillance within the changing environments brought about by new technologies. This report examines the fundamental properties of these requirements and attempts to outline the technical risks, costs, and implications of deploying systems that provide government access to encryption keys.

Twenty years ago, law enforcement organizations lobbied to require data and communication services to engineer their products to guarantee law enforcement access to all data. After lengthy debate and vigorous predictions of enforcement channels "going dark," these attempts to regulate security technologies on the emerging Internet were abandoned. In the intervening years, innovation on the Internet flourished, and law enforcement agencies found new and more effective means of accessing vastly larger quantities of data. Today, there are again calls for regulation to mandate the provision of exceptional access mechanisms. In this article, a group of computer scientists and security experts, many of whom participated in a 1997 study of these same topics, has convened to explore the likely effects of imposing extraordinary access mandates. We have found that the damage that could be caused by law enforcement exceptional access requirements would be even greater today than it would have been 20 years ago. In the wake of the growing economic and social cost of the fundamental insecurity of today's Internet environment, any proposals that alter the security dynamics online should be approached with caution. Exceptional access would force Internet system developers to reverse "forward secrecy" design practices that seek to minimize the impact on user privacy when systems are breached. The complexity of today's Internet environment, with millions of apps and globally connected services, means that new law enforcement requirements are likely to introduce unanticipated, hard to detect security flaws. Beyond these and other technical vulnerabilities, the prospect of globally deployed exceptional access systems raises difficult problems about how such an environment would be governed and how to ensure that such systems would respect human rights and the rule of law.

Twenty years ago, law enforcement organizations lobbied to require data and communication services to engineer their products to guarantee law enforcement access to all data. After lengthy debate and vigorous predictions of enforcement channels "going dark," these attempts to regulate security technologies on the emerging Internet were abandoned. In the intervening years, innovation on the Internet flourished, and law enforcement agencies found new and more effective means of accessing vastly larger quantities of data. Today, there are again calls for regulation to mandate the provision of exceptional access mechanisms. In this article, a group of computer scientists and security experts, many of whom participated in a 1997 study of these same topics, has convened to explore the likely effects of imposing extraordinary access mandates. We have found that the damage that could be caused by law enforcement exceptional access requirements would be even greater today than it would have been 20 years ago. In the wake of the growing economic and social cost of the fundamental insecurity of today's Internet environment, any proposals that alter the security dynamics online should be approached with caution. Exceptional access would force Internet system developers to reverse "forward secrecy" design practices that seek to minimize the impact on user privacy when systems are breached. The complexity of today's Internet environment, with millions of apps and globally connected services, means that new law enforcement requirements are likely to introduce unanticipated, hard to detect security flaws. Beyond these and other technical vulnerabilities, the prospect of globally deployed exceptional access systems raises difficult problems about how such an environment would be governed and how to ensure that such systems would respect human rights and the rule of law.

Mandating insecurity by requiring government access to all data and communications.