America's pyramids: Presidents and their libraries

Review of the purpose, history, and debates about the presidential library system, with a recommendation to end the system

Testing the spirit of the information age

Every age has a 'spirit," The Information Age seems to be a more extreme case than most eras, with the constant barrage of messages promising social and individual salvation. Information and information technology are heralded as\ud great, new possibilities not just for reform but perfection, with some even predicting the end of physical death (using information technology. by the end of the next century. The intensity of our current period's fascination with technology is partly due to the technology itself-ideas or sales pitches get out to more people more quickly than ever before in history, and, as a result it\ud is easy to be blinded by all the promises and hype. It is no accident that ideas like "ecommerce" and "knowledge management' are unifying concepts for many in this era, but although there is nothing intrinsically wrong with them, there is something amiss with how they are discussed. This essay comments on the latter issue, the hyperbole of the Information Age, from three perspectives: 1) as a consumer of information technology; 2) as an educator in a field (archives and records management) utilizing information technology; and 3) as an individual convinced about the relevancy of basic Judaic-Christian beliefs as one means to shift critically the many conflicting and confusing messages promulgated by the so-called modern Information\ud Age

Revisiting the archival finding aid

Archivists have been creating finding aids for generations, and in the last three decades they have done this work via a succession of standardized formats. However, like many other disciplines, they have carried out such work in violation of systems analysis. Although purporting to have the users of finding aids systems first and foremost in their mind, archivists have carried out their descriptive work apart from and with little knowledge of how researchers find and use archival sources. In this article, questions are raised about the utility of archival finding aids and how they will stand the test of time. Indeed, archivists, purportedly concerned with considering how records function and will be used over time, ought to apply the same kind of analysis and thinking to their finding aids. In this article, we explore three ways archival finding aids might be examined by outsiders, namely, those concerned with museum exhibitions, design experts, and accountability advocates. Doing this should assist archivists to reevaluate their next wave of experimentation with descriptive standards and the construction of finding aids. Archivists should expand the notion of what we are representing in archival representation. © 2007 by The Haworth Press

Public records in Colonial Maryland

Historical analysis of the efforts to create, maintain, and use the records of the administration of the colony of Maryland

The plight of american municipal archives: Baltimore, 1729-1979

Historical analysis of the vicissitudes of administering the government records of Baltimore from its origins

Lester J. Cappon, scholarly publishing, and the atlas of early American history, 1957-1976

The Atlas of Early American History: The Revolutionary Era 1760-1790, published in 1976, remains one of the lasting legacies of the US Bicentennial. Funded by the National Endowment for the Humanities and a variety of private foundations, the publication was only incidentally a product of the celebration of the birth of a nation. The Atlas was the product of twenty years of effort by Lester J. Cappon-historian, archivist, and documentary editor-and because of his commitment to maintaining his own personal archives, we can learn more about this scholarly publishing venture than most. His rich diaries, personal papers, and Atlas archives enable us to follow the trials and tribulations of this publishing venture. We also learn that the kinds of issues facing scholarly publishing today, with a few differences (such as e-publishing), are not unique at all from those of half a century ago

Founding brothers: Leland, buck, and cappon and the formation of the archives profession (session 404)

This session on archives history examines the role of three individuals-Waldo G. Leland (1879-1966), Solon J. Buck (1884-1962), and Lester J. Cappon (1900-1981)-in the formation of the archives profession in the United States in the first three-quarters of the twentieth century. These "founding brothers" published extensively, but they also created and maintained personal manuscript collections that reflect how they viewed themselves and how they wanted to be remembered. Four archivists/historians track through the lenses of the papers of the "founding brothers" the emergence of professional history to the beginnings of public history with their alliance and tension with archival science as a distinct profession

American archival history: Its development, needs, and opportunities

Discussion of the research done on archival history in the United States, with consideration of new research needed

Diffusive benefits of cylinders in front of a Schroeder diffuser

A numerical investigation is performed into the diffusive effects of cylinders positioned in front of a Schroeder diffuser. A regular line of cylinders is shown to offer notable improvements to diffusion from a periodic Schroeder device, provided lateral cylinder spacing is incommensurable with the Schroeder period width. Further investigation considers angular dependence and low frequency results in greater detail, as well as the effects on narrowband and modulated Schroeder devices. An optimization procedure is subsequently performed to investigate the effects of an irregular cylinder arrangement, which provides further diffusive benefits. (C) 2010 Acoustical Society of America

Volumetric diffusers : pseudorandom cylinder arrays on a periodic lattice

Most conventional diffusers take the form of a surface based treatment, and as a result can only operate in hemispherical space. Placing a diffuser in the volume of a room might provide greater efficiency by allowing scattering into the whole space. A periodic cylinder array (or sonic crystal) produces periodicity lobes and uneven scattering. Introducing defects into an array, by removing or varying the size of some of the cylinders, can enhance their diffusing abilities. This paper applies number theoretic concepts to create cylinder arrays that have more even scattering. Predictions using a Boundary Element Method are compared to measurements to verify the model, and suitable metrics are adopted to evaluate performance. Arrangements with good aperiodic autocorrelation properties tend to produce the best results. At low frequency power is controlled by object size and at high frequency diffusion is dominated by lattice spacing and structural similarity. Consequently the operational bandwidth is rather small. By using sparse arrays and varying cylinder sizes, a wider bandwidth can be achieved