A Study of the Frictional Properties of New Asphaltic Concrete Pavements in Iowa, MLR-78-03, 1978

Seven asphaltic concrete resurfacing projects were tested for their frictional properties to determine the age-friction relationship of new paving. Projects studied included Type A asphaltic concrete which is generally used for higher traffic volume roads and Type B asphaltic concrete, a lower type material. Also included in the study were asphaltic concretes containing Type 3 and Type 4 coarse aggregate texture classifications. The classifications are based upon material type and grain size composition. Surfaces both with and without sprinkle treatment aggregates were also included. The data gathered suggests that properly designed and placed dense graded asphaltic concrete mixes are adequate to serve the traveling public at all ages tested.

Diffusion of influenza during the winter of 1889-90 in Switzerland

The influenza of the winter of 1889-90 was one of the first epidemics to spread all over the world. At the time, several people hypothesized that the railway was one of the main vectors of diffusion of this influenza. This hypothesis was defended in Switzerland especially by Schmid, Chief of the Swiss Office of Health, who collected an impressive body of material about the spread of the epidemic in that country. These data on influenza combined with data about the structure of the railway are used in this paper in order to test the hypothesis of a mixed diffusion process, first between communes interconnected by the railway, and secondly, between those communes and neighbouring communes. An event history analysis model taking into account diffusion effects is proposed and estimated. Results show that the hypothesis is supported if the railway network in Switzerland is not taken as a whole but if a distinction between railway companies is made.

Summary of Legislation: Iowa General Assembly, 1978

This summary of legislation enacted by the General Assembly has been prepared for the use of legislators and other interested parties. The summary of each legislative enactment has been assigned to a major subject category. This compilation provides interested persons with quick reference to legislation enacted in specific areas and generally informs persons of the contents and effective date of the legislation. NOTE: This is a large file and may take a few minutes to load.

Water-oriented outdoor recreation, fish and wildlife : executive summary, 1978.

The information presented in this summary document has been based on the comprehensive,"Task Force Report on Water-Oriented Outdoor Recreation, Fish and Wildlife." The overriding principle the main task force report conveyed is that Iowa should not forsake the remaining water-oriented fish and wildlife resource base in the name of economic development.The reader should refer to the task force document for more detailed information.

Iowa Highway Archaeology Annual Report 1978-1979, HR-198, 1979

This final report summarizes the activities of the archaeological surveys contract for primary roads, secondary roads, and urban systems. The contract is negotiated annually between the Iowa Department of Transportation and the University of Iowa. The information contained is composed of summaries abstracted from completed cultural resource reports on file with the Department of Transportation, the Office of Historic Preservation, and the Office of the State Archaeologist.

The Highway Surveys Program A Summary Statement Fiscal 1977-1978, HR-198, 1978

This final report summarizes the activities of the archaeological surveys contract for primary roads, secondary roads, and urban systems. The contract is negotiated annually between the Iowa Department of Transportation and the University of Iowa. The information contained in this section of the report is composed of summaries abstracted from completed cultural resource reports on file with the Department of Transportation, the Office of Historic Preservation, and the Office of the State Archaeologist.

Water resource availability : executive summary, 1978

The information presented in this summary document has been based on the comprehensive, "Task Force Report on Water Resource Availability", prepared by the Iowa Geological Survey and filed with the Iowa Natural Resources Council. The reader should refer to the task force document for more detailed information.

[5 lettres autographes signées de Jules Barbier à Henri Heugel, 1889]

14 février. Jugement lapidaire sur "Ascanio" de Saint-Saëns : "tout cela n'est plus de la musique". Au sujet de la mise en scène de "La Tempête" : "je n'ai jamais rencontré un metteur en scène plus intelligent que Gailhard". - 9 mars. Sur les débuts de Mademoiselle Eanus. - 7 mai. Lui promet de faire tout son possible mais l'informe que son "pouvoir" et son "influence" sont fragiles. - 25 mai. Compliments.. - 25 juillet. Lui demande de transmettre une lettre à son valet de chambre dont la femme a travaillé pour Barbier

Notice des objets exposés dans la section de géographie : exposition, Paris, Bibliothèque nationale, mai 1889 / [par Gabriel Marcel]

[Exposition. Paris, Bibliothèque nationale. 1889]