Open Access. Powered by Scholars. Published by Universities.®
- Discipline
- Institution
- Publication
- Publication Type
Articles 1 - 5 of 5
Full-Text Articles in Education
How Do We Know There Is A Population-Environment Problem?, Peter J. Taylor
How Do We Know There Is A Population-Environment Problem?, Peter J. Taylor
Working Papers on Science in a Changing World
Five fictional friends of the author have agreed to meet and talk, hoping that he was right when he claimed that discussion crossing the usual boundaries of their fields would enrich their different inquiries and concerns. Ecolo, a natural and human ecologist, breaks the ice. He wants to marshall scientific knowledge to persuade others of the seriousness of the population problem. He is questioned by Philoso, whose philosophical bent leads her to observe the models that people use and to ask how they support the claims they make. In turn, the other three join in: Activo, an activist who is …
An Overview Of Americans For Indian Opportunity, Inc., Ladonna Harris, Laura Harris
An Overview Of Americans For Indian Opportunity, Inc., Ladonna Harris, Laura Harris
LaDonna Harris Native American Collection
This file contains copies of American for Indian Opportunities reports, communications, updates on the organization, programs sponsored by AIO, communications with editors and publishers, drafts of AIO’s organizational information, work on environmental issues, the American Indian Institute, the Symposium on Sovereign dependency, Conflict management process, Indian Youth development, management session, an AIO’s Corporate Capacity Statement, biographical profile of LaDonna Harris, and copies of some bibliographical sources.
Preservice Teachers' Understanding And Representation Of Equality Of Fractions In A Javabars Environment, Mohan Chinnappan
Preservice Teachers' Understanding And Representation Of Equality Of Fractions In A Javabars Environment, Mohan Chinnappan
Faculty of Social Sciences - Papers (Archive)
In recent years, considerable research effort has been invested in identifying the nature of the knowledge that drives mathematics teachers’ actions in the classroom. While this investigation has generated a useful body of information, there has been little information about changes in the character of this knowledge when teaching involves the use of technology. In this paper, I address this issue by examining a group of preservice primary mathematics teachers’ understanding of fractions. The participants were required to order fractions within software called JavaBars. The results suggest that, while the preservice teachers had built up robust knowledge about fractions, they …
Ec00-1879 Sorghum Ergot In The Northern Great Plains, Jim Stack
Ec00-1879 Sorghum Ergot In The Northern Great Plains, Jim Stack
University of Nebraska-Lincoln Extension: Historical Materials
Sorghum is grown throughout Nebraska on approximately 0.6 million acres of land. It is grown as a forage crop as well as a grain crop. There is no significant commercial seed production in Nebraska. Grain sorghum is used domestically as livestock feed, in ethanol production, and to a limited extent as a food crop.
Grain sorghum is also exported to several countries. All sorghum hybrids (grain and forage) are susceptible to ergot disease. Ergot is a disease that impacts sorghum production directly by infecting unfertilized flowers and preventing seed development. Ergot also impacts sorghum production indirectly. Affected fields with honeydew-covered …
G00-1778 Field Windbreaks, James R. Brandle, Laurie Hodges
G00-1778 Field Windbreaks, James R. Brandle, Laurie Hodges
University of Nebraska-Lincoln Extension: Historical Materials
gricultural producers face many challenges as they try to balance efficient production systems with increasing environmental demands. For these systems to be successful, they must optimize the balance between inputs and final production. Field windbreaks are one way to increase yields while at the same time reducing inputs and improving both environmental quality and production efficiency. Windbreaks reduce wind speed and alter the microclimate in sheltered areas. Field windbreaks reduce wind erosion and the damage to crops caused by wind-blown soil. They improve water use efficiency, reduce risks associated with drought, and manage blowing snow.
Field windbreaks provide positive economic …