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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

The Hydrolysis of Calcium Carbonate and its Relation to the Alkalinity of Calcareous Soils

Buehrer, T. F., Williams, J. A. 15 October 1936 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
72

Methods of Determining the Replaceable Bases of Soils, Either in the Presence of Absence of Alkali Salts

Burgess, P. S., Breazeale, J. F. 01 April 1926 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
73

A Study of Toxicity of Salines that Occur in Black Alkali Soils

Breazeale, J. F. 01 February 1927 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
74

Green School Guidelines & Application in Arid Regions

Gardner, Ambar 25 April 2015 (has links)
Sustainable Built Environments Senior Capstone Project / There is a worldwide movement towards sustainability. A stepping-stone towards a sustainability conscience population starts in the education of the younger generation. Focusing on improving education specifically in middle schools in arid regions regarding sustainability will shift and shape youths’ interests and lifestyles into an educated community. This sustainability conscience community will continue to make moral sustainable decisions in their future endeavors. The curriculum implemented will reduce the dropout rate because it is a hand-on curriculum that is interesting and enjoyable for kids. The focus of the curriculum is to rely on outdoor activities to create an outdoor learning environment. The curriculum is based on three different sections: 1) campus-wide adaptable strategies implemented by the students, 2) long term investments implemented by professionals, 3) and hands-on activities that will encourage students to go outdoors and experience real-life problems. To create this education system, the author will propose design guidelines and applications that will be used to improve middle schools particularly in arid regions to become “Green Schools”. This program will validate the sustainable strategies, projects, and efforts done at schools and will also market their school as a model to follow. This will explain what it takes to become a Green School in arid regions and how to achieve these standards.
75

Treatment of Black Alkali with Gypsum

Catlin, C. N., Vinson, A. E. 31 March 1925 (has links)
This item was digitized as part of the Million Books Project led by Carnegie Mellon University and supported by grants from the National Science Foundation (NSF). Cornell University coordinated the participation of land-grant and agricultural libraries in providing historical agricultural information for the digitization project; the University of Arizona Libraries, the College of Agriculture and Life Sciences, and the Office of Arid Lands Studies collaborated in the selection and provision of material for the digitization project.
76

How Do We Keep Conservation Alive When Kids Have Less and Less Contact with Nature?

Payan, Rafael January 2012 (has links)
An unsettling trend is gaining momentum - many Americans may be losing their interest in the `natural world'. According to research undertaken by Patricia Zaradic, an Environmental Leadership Program fellow in Bryn Mawr, and Oliver Pergams of the University of Illinois at Chicago, "nature just isn't as entertaining as it used to be." Studies of Americans' recreational habits show a nearly 25 percent per capita decline in camping, fishing, hunting and visits to state and national parks since the mid-1980s (Gambino 2008). Like "climate change," some suggest that the downward trend in outdoor recreation by Americans is a manifestation of fiction rather than fact. But the trend is unmistakable: A smaller percentage of people in the United States and elsewhere are participating in outdoor recreation (Smith 2008). Pergams and Zaradic show a trend in human behavior that ultimately may be far more foreboding for the environment than declining tropical forest cover or increasing greenhouse gas emissions - widespread declines in nature-based recreation (Kareiva 2008). The question that has yet to be answered is to what degree this trend will have in influencing our society's future and in how we will value - or devalue - our natural environment. Will future generations that grow up and live in a world estranged from the natural environment want to protect it? America's 200-year conservation tradition may be at risk. Two dominant factors influenced the environmental philosophies of notable historic American conservationists. One was their direct and repeated interaction with the natural world beginning at a very early age; the other was an environment-focused family tradition. These same factors influenced the environmental ethos of today's conservationists, land managers and environmental educators. It is impossible to determine if these factors will be of equal significance one hundred years from now. However, we can predict with reasonable certainty based on the recent historic record, motivators identified by current environmentalists, and the results of independent surveys of adolescent subjects reported in this study that, at least for now and for the foreseeable future, if implemented in combination with others variables, these will favorably influence the conservation ethic of our youngest citizens.
77

A History of the Osage Indians Before Their Allotment in 1907

Reeves, Carroll Don 06 1900 (has links)
The history of the Osages from 1808 to 1839 may be conveniently divided into three major sections, each separated by a cession treaty. The first begins with the cession treaty of 1808 and terminates with the cession of 1818. It covers the Osages' relations with the whites and the eastern tribes during that decade. The second section begins with the 1818 session treaty and ends with the land cession of 1825. It likewise covers the tribe's relations with the eastern tribes and the whites. The concluding division covers the period from the Osages' last major cession treaty to their removal to Kansas in 1839, and includes their relations with the eastern tribes, the western tribes, and the whites. These three sections combined cover the most turbulent period in Osage history, a period in which the United States Government and the powerful eastern tribes took the extensive Osage lands by right of conquest.
78

The Impact of Federal Lands on Per-Pupil Spending in the Western United States

Anderson, Matthew K. 01 May 2019 (has links)
Property taxes are a significant form of funding for states’ public education. In the West, nearly half of the land is owned by the federal government, making it off limits to tax. This research examines the relationship between federal land and its impact on per-pupil spending.
79

Effects of clearcutting a Douglas-fir stand upon small animal populations in western Oregon /

Hooven, Edward Frank, January 1971 (has links)
Thesis (Ph. D.)--Oregon State University, 1971. / Typescript (photocopy). Includes bibliographical references. Also available on the World Wide Web.
80

Evaluation of Service Composition Methods: Using Government Lands Integrated System as an example

Yu, Tao-Kang 05 February 2012 (has links)
As time and technology evolves, the applications of cloud computing increase in our daily life. SaaS enterprise applications also increase in business context. The success of the information systems in the cloud era relies on the proper selection and combination of Web Services. This is especially true for complex business processes, which often require effective and efficient way to reuse existing functions. Following the study in (Li Jianxiang, 2011), which proposes the model of General Service Pattern, we aim to evaluate the General Service Pattern model using real processes in land administration. The evaluation metrics include time and correctness. The study shows that the use of General Service Pattern significantly shorten the time required to construct land administration processes, when compared to the design from scratch and the design by providing similar processes. . The correctness of the yielded processes is also higher than the other two methods. We therefore conclude that General Process Pattern is a promising model.

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