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Articles 23581 - 23610 of 24564
Full-Text Articles in Physical Sciences and Mathematics
Program Abstracts, 100th Session, Iowa Academy Of Science, April 21-23, 1988, Iowa State University
Program Abstracts, 100th Session, Iowa Academy Of Science, April 21-23, 1988, Iowa State University
Journal of the Iowa Academy of Science: JIAS
No abstract provided.
An Industry Perspective On The Benefits Of And Regulation Of Genetically Engineered Plants, Nicholas M. Frey
An Industry Perspective On The Benefits Of And Regulation Of Genetically Engineered Plants, Nicholas M. Frey
Journal of the Iowa Academy of Science: JIAS
The seed industry has routinely incorporated new technology into its research and development programs. Plant generic engineering is the most recent technology to be utilized for seed product development efforts. New sources of herbicide, insect, and disease resistance are being incorporated into crop plants using cellular and molecular biology techniques.
New regulatory guidelines have been developed which require regulatory approval before genetically engineered plants can be reseed in the field and ultimately marketed. The impact of these regulations on product development is unclear. Hopefully a dialogue will develop among industry, government agencies, and the public such that reasonable and appropriate …
Economic Changes From The Use Of Biotechnology In Production Agriculture, Loren W. Tauer
Economic Changes From The Use Of Biotechnology In Production Agriculture, Loren W. Tauer
Journal of the Iowa Academy of Science: JIAS
The potential economic impact of biotechnology in production agriculture is discussed. There are challenges and difficulties in completing economic research when little production information is available on biotechnologies. I argue that little impact differences exist between cost-reducing versus output-increasing technological change. Rapid technological change results in low average returns in agriculture but continuous early innovators earn higher returns. Various plant and animal technologies are presented and discussed.
Agronomic Performance Of Sorghum Hybrids Produced By Using Different Male-Sterility-Inducing Cytoplasms, A. J. Maves, R. E. Atkins
Agronomic Performance Of Sorghum Hybrids Produced By Using Different Male-Sterility-Inducing Cytoplasms, A. J. Maves, R. E. Atkins
Journal of the Iowa Academy of Science: JIAS
Experiments were conducted in three environments in Iowa to obtain information on the effects of different cytoplasms on agronomic characters in grain sorghum (Sorghum bicolor L. Moench) hybrids. Compared with A1 cytoplasm, A2 and A3 cytoplasms delayed flowering; reduced the percentage of fertile pollen, the number of seeds per panicle, and grain yield; and increased 100-seed weight of the hybrids. Hybrids with A2 or A3 cytoplasm did not differ (p ≥0.05) from those in the A1 cytoplasm for plant height, panicles per plant, or for length, width, and area of the third and fourth leaves from the top of …
Evaluation Of Fish Eradication And Game-Fish Restocking In A Central Iowa Pond, Dennis L. Scarnecchia
Evaluation Of Fish Eradication And Game-Fish Restocking In A Central Iowa Pond, Dennis L. Scarnecchia
Journal of the Iowa Academy of Science: JIAS
Changes in fish community and population structure associated with fish eradication and subsequent restocking were investigated in a small (0. 25 ha) impoundment in Boone County, Iowa. In September 1985, when fish were eradicated with rotenone, the fish community consisted of eight species. Large numbers of small bluegills (Lepomis macrochirus), green sunfish (Lepomis ryanellus), and stunted crappies (Pomoxis spp.) dominated the pond numerically, but seven large carp (Cyprinus carpio) and 18 large bigmouth buffalo (lctiobus ryprinellus) constituted 80% of the total biomass. The only quality angling (popular species of desirable size) was for a few largemouth bass (Micropterus salmoides) and …
Soil N Availability And Nitrogen Harvest Index Of Oats, N. Md. Kairudin, K. J. Frey
Soil N Availability And Nitrogen Harvest Index Of Oats, N. Md. Kairudin, K. J. Frey
Journal of the Iowa Academy of Science: JIAS
A population of 480 random lines of oats (Avena sativa L.) was grown on soil that received no application of nitrogen (N) or 112 kg of N ha-1 (defined as low- and high-N environments, respectively) to evaluate the effect of N availability in the soil on the plant's ability to partition N between vegetative tissue and the grain, a ratio defined as nitrogen harvest index. Also, comparisons were made between low and high-N environments for grain yield, straw yield, biological yield, groat protein yield, groat protein percentage, vegetative protein yield, straw protein percentage, total plant protein yield, and harvest …
Anthracnose Kernel Rot Of Maize Caused By Colletotrichum Graminicola (Ces.) Wils.: Mode Of Entrance Into And Disease Progression In Ears, Claude Nankam, D. C. Foley
Anthracnose Kernel Rot Of Maize Caused By Colletotrichum Graminicola (Ces.) Wils.: Mode Of Entrance Into And Disease Progression In Ears, Claude Nankam, D. C. Foley
Journal of the Iowa Academy of Science: JIAS
The mode of establishment of Colletotrichum graminicola in maize ears to cause kernel infection was studied for two types of infective propagules and three sites of penetration. Shank inoculations with either oat-grain inoculum or spores induced a greater percentage of infected kernels than inoculations of the husk or kernel area with an infected oat grain or inoculations of the silks with an oat grain or a spore suspension in 1985. But in 1986, a spore suspension in the kernels ranked first among all the treatments based on the basis of disease severity on the kernels. However, a large percentage of …
Reevaluating Evidence For The Pre-Lllinoian Entrenchment Of Northeastern Iowa River Valleys, Curtis M. Hudak
Reevaluating Evidence For The Pre-Lllinoian Entrenchment Of Northeastern Iowa River Valleys, Curtis M. Hudak
Journal of the Iowa Academy of Science: JIAS
Previous workers have proposed a pre-Illinoian age for the deepest bedrock entrenchment of northeastern Iowa valleys. Lines of evidence used to support a pre-Illinoian age of entrenchment are: (1) deep bedrock-entrenchment interpreted to take "long" periods of time, (2) "valleys" filled with "red-weathered drift", which was interpreted as "old", (3) differences in cross-valley profiles supposedly related to glacial advances, (4) thick beds of gravel could only be deposited by outwash streams, and (5) glacially buried (drift-filled) bedrock valleys exist outside of the Paleozoic Plateau to the west and south. These inferences are questionable because: ( 1) erosion (entrenchment) rates are …
Recompact Iowa Soil Materials Before Using As Liners For Waste Containment, G. J. Kluitenberg, R. Horton, M. L. Thompson, J. F. Mcbride
Recompact Iowa Soil Materials Before Using As Liners For Waste Containment, G. J. Kluitenberg, R. Horton, M. L. Thompson, J. F. Mcbride
Journal of the Iowa Academy of Science: JIAS
Soil materials are often used in hazardous-waste disposal facilities to provide a physical barrier to leachate movement. Both existing soils and recompacted soil materials have been used in barrier construction. Solute transport experiments and measurements of saturated hydraulic conductivity were used to characterize the solute transport properties of three Iowa soil materials. Experiments were carried out by using undisturbed soil samples as well as recompacted samples. The experimental results show that recompaction greatly altered the solute transport properties of the three soil materials. It is concluded that recompaction is necessary for any of these materials to satisfy Environmental Protection Agency …
Water And The American West: Essays In Honor Of Raphael J. Moses, David H. Getches
Water And The American West: Essays In Honor Of Raphael J. Moses, David H. Getches
Books, Reports, and Studies
This digital resource contains only an abstract, cover image and table of contents information from the published book.
Print copy of book is available in the University of Colorado’s Wise Law Library: http://lawpac.colorado.edu/record=b131940~S0
Contents: Foreword / [David H. Getches] -- Biographical note : a tribute to a great lawyer / John M. Sayre -- To settle a new land : an historical essay on water law in Colorado and in the American West / Charles F. Wilkinson -- A global perspective on western water / Gilbert F. White -- The international problem with Mexico over the salinity of the lower …
Bibliographie Pflanzen Soziologischer Arbeiten Über Die Mongolische Volksrepublik. Folge 2, Werner Hilbig
Bibliographie Pflanzen Soziologischer Arbeiten Über Die Mongolische Volksrepublik. Folge 2, Werner Hilbig
Erforschung biologischer Ressourcen der Mongolei / Exploration into the Biological Resources of Mongolia, ISSN 0440-1298
Zusammenfassung
Der vorliegende Teil 2 einer Bibliographie pflanzensoziologischer und vegetationsökologischer Arbeiten über das Gebiet der Mongolischen Volksrepublik (MVR) enthält im wesentlichen Arbeiten aus den Jahren 1980-1985. Es werden 201 Arbeiten zitiert.
Summary
The second part of the bibliography of geobotanical and synecological publications about the territory of the Mongolian People's Republic contains publications mainly from 1980 till 1985. 201 papers are quoted.
An Inventory And Condition Survey Of Rangelands In The Ashburton River Catchment, Western Australia, A A. Mitchell, A L. Payne, W F. Holman
An Inventory And Condition Survey Of Rangelands In The Ashburton River Catchment, Western Australia, A A. Mitchell, A L. Payne, W F. Holman
Technical Bulletins
The inventory and condition survey of rangelands in the Ashburton River catchment, undertaken by the Department of Agriculture and Food, Western Australia (DAFWA) between 1976 and 1978, describes and maps the natural resources of the region’s pastoral leasehold land. This survey report provides a baseline record of the existence and condition of the natural area’s resources, to assist with the planning and implementation of land management practices. The report identified and described the condition of soils, landforms, vegetation, habitat, ecosystems, and declared plants and animals. It also assessed the impact of pastoralism and made land management recommendations. The area surveyed …
Santa Clara Magazine, Volume 30 Number 2, Winter 1988, Santa Clara University
Santa Clara Magazine, Volume 30 Number 2, Winter 1988, Santa Clara University
Santa Clara Magazine
10 - UNDERSTANDING THE NEW SOVIETS A first-person account of the Soviet Union today by the author of two books on Russia. By Jim Garrison
16 - HOW TO GET INTO ADVERTISING An English graduate goes from waiting tables to a senior vice presidency on Madison Avenue. By Barbara Boyle
20 - 1988 ECONOMIC FORECAST For 15 years, Mario Belotti's been making forecasts that are amazingly accurate. By Mario Belotti
22 - SANTA CLARA AND THE POPES Reviewing historic links with Rome shows how it affected SCU. By Gerald McKevitt, S.J.
26 - SCU'S ETERNAL FLAIM Biology professor Frank Flaim …
Maine Woodburning Guide, Office Of Energy Resources
Maine Woodburning Guide, Office Of Energy Resources
Maine Collection
Maine Woodburning Guide
State of Maine, Office of Energy Resources,
Augusta, Maine, 1988.
Contents: 1 Safe Installation / 2 Buying Firewood / 3 Efficient Woodburning / 4 New Equipment Developments / 5 Chimney and Stovepipe Cleaning
Ua35/11 Student Honors Research Bulletin, Wku Honors Program
Ua35/11 Student Honors Research Bulletin, Wku Honors Program
WKU Archives Records
The WKU Student Honors Research Bulletin is dedicated to scholarly involvement and student research. These papers are representative of work done by students from throughout the university.
- Bachert, Sara. Rational Portrayal of the Irrationational in The Pit and the Pendulum
- Bell, Suzanne. Early Secret Involvement of the United States Military in Cambodia
- Brock, Beth. The Informal Caregiving System: The Frail Elderlys' Avenue of Choice
- Daniel, Janice. Child Sexual Abuse
- Johnson, Linda. International Telecommunications Trade with Japan
- Jones, LaMont. Ernie Pyle: Journalist Without Peer
- Kesserling, Marcia. Attitudes Toward the Need for Computer Literacy
- Lewis, Gloria. John Donne's Attitude Toward Love
- Majdi, …
Monthly Planet, 1987, December, Erin Wright, Huxley College Of The Environment, Western Washington University
Monthly Planet, 1987, December, Erin Wright, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
Monthly Planet, 1987, Novemeber, Erin Wright, Huxley College Of The Environment, Western Washington University
Monthly Planet, 1987, Novemeber, Erin Wright, Huxley College Of The Environment, Western Washington University
The Planet
No abstract provided.
Co2-Warming, Rising Sea-Level And Retreating Coasts: Review And Critique, Edward A. Bryant
Co2-Warming, Rising Sea-Level And Retreating Coasts: Review And Critique, Edward A. Bryant
Faculty of Science - Papers (Archive)
A CO2-warming atmospheric scenario, whereby increased concentrations of 'greenhouse' gases result in warmer temperatures that either melt near-polar ice or cause thermal expansion of ocean waters, thus leading to increased sea-levels and exacerbated coastal erosion, assumes fundamental but unproven cause-and-effect relationships. General circulation models have reinforced claims of an accelerated warming and indirectly given support to the complete scenario, but ignore the point that global climate and not just air temperatures have changed over the past century. Indeed, it is difficult to prove that air temperatures have warmed naturally outside of urban centres over this period. To attribute recent temperature …
Resource Law Notes Newsletter, No. 12, Nov. 1987, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes Newsletter, No. 12, Nov. 1987, University Of Colorado Boulder. Natural Resources Law Center
Resource Law Notes: The Newsletter of the Natural Resources Law Center (1984-2002)
No abstract provided.
Classifying Oregon Lake-Watershed Ecosystems For Regional Water Resources Assessment, Randall Alan Jones
Classifying Oregon Lake-Watershed Ecosystems For Regional Water Resources Assessment, Randall Alan Jones
Dissertations and Theses
Natural lake-watershed ecosystems in Oregon compose a diverse and valuable assemblage of land and water resources. With an increasing demand on lakes for recreation, water supplies, and aesthetic values and an increase in available data on Oregon lake systems, there is a need for applicable and timely scientific water management information about lake conditions statewide. This thesis is an attempt to summarize some of the data collected on natural Oregon lake-watershed ecosystems.
The purpose of the thesis is to identify the most typical natural systems out of an initial data base of twenty-four variables, measured over ninety-eight lake-watershed ecosystems. The …
Santa Clara Magazine, Volume 30 Number 1, Fall 1987, Santa Clara University
Santa Clara Magazine, Volume 30 Number 1, Fall 1987, Santa Clara University
Santa Clara Magazine
10 - CAN THERE BE DISSENT IN CATHOLIC UNIVERSITIES? SCU's president makes clear where the University stands on this important issue. By William J. Rewak, S.J.
17 - WHAT'S AHEAD IN THE WORLD OF HIGH TECH? Former Business ~ek reporter Jack Wilson looks to the future of Silicon Valley.
21 - GREEKS ON CAMPUS-HERE TO STAY? What makes sororities and fraternities appealing to SCU undergraduates?
28 - GLASS IMAGE Tom Kelly '72 unlocks memories of classmate Charlie Glass after Glass's abduction last June.
30 - THE AGE OF AQUARIUS REVISITED Six members of the class of '67 talk about their …
Ua66/7/2 Hilltopper News, Wku Chemistry
Ua66/7/2 Hilltopper News, Wku Chemistry
WKU Archives Records
Newsletter created by and about the WKU Chemistry department.
Santa Clara Magazine, Volume 29 Number 4, Summer 1987, Santa Clara University
Santa Clara Magazine, Volume 29 Number 4, Summer 1987, Santa Clara University
Santa Clara Magazine
10 - ALASKA DIARY From the journal Bill Regan kept on his 1931 expedition to Alaska with Father Hubbard. By William V. Regan. Edited by Peg Major
18 - THE U.S. AND THE VATICAN An excerpt from Eric Hanson's new book sets the stage for the pope's September visit. By Eric O. Hanson
21 - MR. ESPY GOES TO WASHINGTON Mike Espy '78 (JD) is Mississippi's first black congressman since Reconstruction. By Carla Hall
24 - BURIED TREASURE For every child God gave them, Kathy and Allen Hayes '66 promised to adopt another. By Allen and Kathy Triplett Hayes '66
Integrating Private Water Development Activities Into Federal Land And Resource Planning And Management, James F. Engelking
Integrating Private Water Development Activities Into Federal Land And Resource Planning And Management, James F. Engelking
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
92 pages.
Repositioning Arizona Lands, D. Dean Bibles
Repositioning Arizona Lands, D. Dean Bibles
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
10 pages.
Ski Development In National Forests, Harris D. Sherman, David S. Neslin, Ian K. Whitlock
Ski Development In National Forests, Harris D. Sherman, David S. Neslin, Ian K. Whitlock
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
79 pages.
Carrying Capacity In The National Parks, Denis P. Galvin
Carrying Capacity In The National Parks, Denis P. Galvin
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
4 pages.
Blm Land Planning And Consistency Obligations To Provide For Protection Of Natural Values On Adjacent Protected Lands, William J. Lockhart
Blm Land Planning And Consistency Obligations To Provide For Protection Of Natural Values On Adjacent Protected Lands, William J. Lockhart
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
60 pages.
Watershed Management And Water Quality Protection, Thomas E. Wilson
Watershed Management And Water Quality Protection, Thomas E. Wilson
The Public Lands During the Remainder of the 20th Century: Planning, Law, and Policy in the Federal Land Agencies (Summer Conference, June 8-10)
11 pages.
Contains references (page 1).