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Describes spring's gradual arrival on a farm.
With twenty-one dramatic true stories of courageous, loyal, and loving horses who found their life's purpose, this book reveals the wonders possible when both humans and horses are encouraged and allowed to follow their best instincts. The heroic equines you will meet include: Molly, a pony who survived Hurricane Katrina and the loss of a leg, who spreads her message of hope to disabled children. Her story went viral with coverage on the Internet, in the New York Times, and on the CBS Evening News. Sankofa, an Arabian stallion, who made it possible for social studies teacher Miles J. Dean to complete a cross-country journey in tribute to African American ancestors. Millions of adults and schoolchildren followed their odyssey as Miles and Sankofa made history come alive. Diana, a wild horse of the rare Gila herd, who proved to be a proud and resourceful lead mare who protected her herd and taught the great lesson of forgiveness. Butch, a retired gelding, who showed such an unswerving belief in a profoundly mentally retarded girl that he restored a mother's hopes for her child's future.
This state-of-the-practice report on the design and development of roads and airfields is the eighth monograph in a series prepared by the Technical Council on Cold Regions Engineering of the American Society of Civil Engineers. Previous reports in the series covered such topics as frost action and its control embankment design, and arctic coastal processes. This book discusses such topics as: 1) Route-location/siting; 2) frost action; 3) design for permafrost conditions; 4) low temperature cracking; 5) maintenance; 6) use of geosynthetics; and 7) materials specifications and testing. This monograph contributes a substantial amount of new material to the Cold Regions Engineering series.
This report describes a survey of current practice as well as analysis performed to develop guidelines for agencies which need load restrictions during spring thaw periods. The results show for a range of locations in the U.S. and Canada that the average load restrictions applied is about 44 percent. The analysis performed in the study tends to confirm that level of load restriction. Further, it was found for the assumed conditions that a minimum load restriction level (if any load reduction is needed) is about 20 percent. Load restrictions greater than 60 percent are generally not warranted for the range of cases studied. An air temperature based criterion (Thawing Index) was developed which can be used to estimate when to apply and remove load restrictions.
This synthesis report will be of interest to pavement design engineers in local, state, and federal transportation agencies. Pavement materials, construction, and maintenance engineers will also find it of interest. In addition, it will be of interest to local technology transfer centers and pavement research engineers. This synthesis describes the state of the practice for thin-surfaced pavement project selection and structural design. It does not establish preferential design criteria (e.g., mix design) nor does it systematically evaluate existing design methods. This report of the Transportation Research Board describes the conditions in which thin-surfaced pavements are considered appropriate, what thin-surfaced pavement types are considered appropriate for given conditions, and the decision criteria used in their selection. Information for the synthesis was collected by surveying state and local transportation agencies and by conducting a literature search, including foreign resources. Case studies and an extensive collection of survey data are presented.
While modern science has always recognized the central role that biodiversity plays in the ecological processes that maintain the Earth's equilibrium, our increasing knowledge of nature has deepened our appreciation of this principle. Consequently, those involved with implementing and maintaining sustainable agriculture systems have begun to take a