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Articles 1 - 30 of 384
Full-Text Articles in Life Sciences
New National Extension Site Has Information On Dealing With Economic Crisis, Elbert Dickey, Dan Moser
New National Extension Site Has Information On Dealing With Economic Crisis, Elbert Dickey, Dan Moser
Institute of Agriculture and Natural Resources: News Releases
Lincoln, Ne & the nation's land-grant universities, including the University of Nebraska-Lincoln, have gathered myriad resources on-line to help Americans deal with the financial crisis.
The site is available through eXtension.org, via a link at www.extension.unl.edu (http://www.extension.unl.edu/).
Elbert Dickey, dean and director of UNL Extension, said the site is an excellent example of what eXtension does best.
"UNL Extension and our counterparts across the country created eXtension for just this purpose to get the 'best of the best' research-based, unbiased information from all over the U.S. into the hands of Americans who need it," Dickey said. "All Americans are struggling …
Elections And Economic Turbulence In Brazil: Candidates, Voters, And Investors, Tony Petros Spanakos, Lucio R. Renno
Elections And Economic Turbulence In Brazil: Candidates, Voters, And Investors, Tony Petros Spanakos, Lucio R. Renno
Department of Political Science and Law Faculty Scholarship and Creative Works
The relation between elections and the economy in Latin America might be understood by considering the agency of candidates and the issue of policy preference congruence between investors and voters. The preference congruence model proposed in this article highlights political risk in emerging markets. Certain risk features increase the role of candidate campaign rhetoric and investor preferences in elections. When politicians propose policies that can appease voters and investors, elections may have a limited effect on economic indicators, such as inflation. But when voter and investor priorities differ significantly, deterioration of economic indicators is more likely. Moreover, voter and investor …
A High-Oleic-Acid And Low-Palmitic-Acid Soybean: Agronomic Performance And Evaluation As A Feedstock For Biodiesel, George L. Graef, Bradley J. Lavallee, Patrick Tenopir, Mustafa Tat, Bruce Schweiger, Anthony J. Kinney, Jon H. Van Gerpen, Thomas E. Clemente
A High-Oleic-Acid And Low-Palmitic-Acid Soybean: Agronomic Performance And Evaluation As A Feedstock For Biodiesel, George L. Graef, Bradley J. Lavallee, Patrick Tenopir, Mustafa Tat, Bruce Schweiger, Anthony J. Kinney, Jon H. Van Gerpen, Thomas E. Clemente
Department of Agronomy and Horticulture: Faculty Publications
Phenotypic characterization of soybean event 335-13, which possesses oil with an increased oleic acid content (> 85%) and reduced palmitic acid content (< 5%), was conducted across multiple environments during 2004 and 2005. Under these conditions, the stability of the novel fatty acid profile of the oil was not influenced by environment. Importantly, the novel soybean event 335-13 was not compromised in yield in both irrigated and non-irrigated production schemes. Moreover, seed characteristics, including total oil and protein, as well as amino acid profile, were not altered as a result of the large shift in the fatty acid profile. The novel oil trait was inherited in a simple Mendelian fashion. The event 335-13 was also evaluated as a feedstock for biodiesel. Extruded oil from event 335-13 produced a biodiesel with improved cold flow and enhanced oxidative stability, two critical fuel parameters that can limit the utility of this renewable transportation fuel.
Small Grains And Field Peas: 2010 Variety Recommendations (2009 Crop Performance Results), Cooperative Extension Service, South Dakota State University
Small Grains And Field Peas: 2010 Variety Recommendations (2009 Crop Performance Results), Cooperative Extension Service, South Dakota State University
SDSU Extension Circulars
Variety selection is a fundamental element in a sound crop production program. This report contains variety recommendations, descriptions, and yield data for the spring-seeded small grains – hard red spring wheat, oat, and barley, along with the fall-seeded small grain –hard red winter wheat. Key factors in variety selection include yield, yield stability, maturity, straw strength, height, test weight, quality, and disease resistance. Yield is an important factor; however, a variety with good disease resistance, straw strength, and high grain quality may be more profitable in some cases than the highest yielding variety. Disease resistance information is based on reactions …
Five Decades Of Agricultural Policies In Nigeria: What Roles Has Statistics Played?, Akinboyo O. I
Five Decades Of Agricultural Policies In Nigeria: What Roles Has Statistics Played?, Akinboyo O. I
Bullion
All over the country and internationally, the publications of the Central Bank of Nigeria (CBN) such as the Annual Report and Statement of Accounts, the Statistical Bulletin, Economic and Financial Review, the Bullion and Nigeria: Major Economic and Banking Indicators and those of the National Bureau of Statistics (NBS) have become a veritable source of data and reference materials on Nigeria. Without basic i n f o r m a t i o n o n e c o n o m i c developments, it would be very difficult for policy makers to assess economic performances. The f o …
Flowability And Handling Characteristics Of Bulk Solids And Powders—A Review With Implications For Ddgs, V. Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan
Flowability And Handling Characteristics Of Bulk Solids And Powders—A Review With Implications For Ddgs, V. Ganesan, Kurt A. Rosentrater, Kasiviswanathan Muthukumarappan
Kurt A. Rosentrater
Much research regarding handling and storage characteristics of bulk solids has been conducted over the years. Physical properties of granular solids play a significant role in their resulting storage and flow behaviour, and are therefore essential to design appropriate, efficient, and economic bulk solids handling and storage equipment and structures. Distillers Dried Grains with Solubles (DDGS) is a bulk material that has been widely used as a protein source for ruminants and non-ruminants for more than two decades. Distillers grains are energy and nutrient dense, and are often used as a replacement for corn in animal diets. With the exponential …
Ard News December 2008
Agricultural Research Division: News and Annual Reports
Contents:
Comments from the Dean Gary Cunningham
Undergraduate Honors Research Program
David H. and Annie E. Larrick/William G. Whitmore Funds, 2009
Mussehl Endowment
New or Revised Projects September and October 2008
Proposals Submitted for Federal Grants September and October 2008
Grants and Contracts Received for September and October 2008
College Of Agricultural Sciences And Natural Resources, 15th Annual Report August 1, 2007-July 31, 2008
College of Agricultural Sciences and Natural Resources (CASNR): Annual Reports
Contents
Introduction 3 • Dedication 5 • Administration and Staff 6 • Academic Unit Administrators 6 • CASNR Standing Committees 7 • Faculty Advisory Council 7 • Student Advising Improvement Committee 8 • Teaching and Learning Improvement Council 9 • Scholarship and Graduation with Distinction Committee 9 • Curriculum Committee 10 • Teaching Faculty 11 • Faculty Meetings 11 • New Faculty or Faculty with New Appointments 11 • Retirements 12 • Faculty Awards 12 • Departmental News and Events 14 • Agricultural Economics 15 • Agricultural Leadership, Education and Communication 18 • Agronomy and Horticulture 20 • Animal Science …
Some Items To Consider Before You Change The Calving Season Of Your Beef Cow Herd, Randall D. Weidmeier, Adam Summers, D. R. Zobell, Dillon M. Feuz
Some Items To Consider Before You Change The Calving Season Of Your Beef Cow Herd, Randall D. Weidmeier, Adam Summers, D. R. Zobell, Dillon M. Feuz
All Current Publications
This publication gives important items to consider before changing calving seasons of beef cow herds.
Preliminary Perspectives On The Health Needs Of Pastoral Women On The Borana Plateau Using Participatory Approaches, D. Layne Coppock, Seyoum Tezera, Solomon Desta
Preliminary Perspectives On The Health Needs Of Pastoral Women On The Borana Plateau Using Participatory Approaches, D. Layne Coppock, Seyoum Tezera, Solomon Desta
Environment and Society Faculty Publications
Since 2000, the PARIMA project has conducted participatory research and outreach among pastoralists in southern Ethiopia. This has led to notable achievements in terms of forming collective-action groups dominated by women, stimulation of sustainable micro-finance and micro-enterprise activities, and improving linkages of pastoral producers to livestock markets. Despite such gains, there are many other challenges to be addressed. One is poor human health. PARIMA researchers used participatory and qualitative methods to conduct a preliminary assessment of women’s health problems among members of six, well-established collective-action groups from the Borana and Gugi zones in the Oromia Regional State during 2008. Conventional …
Are Cattle Die-Offs Predictable On The Borana Plateau, D. Layne Coppock, Getachew Gebru, Solomon Desta, Sintayehu Mesele, Seyoum Tezerra
Are Cattle Die-Offs Predictable On The Borana Plateau, D. Layne Coppock, Getachew Gebru, Solomon Desta, Sintayehu Mesele, Seyoum Tezerra
Environment and Society Faculty Publications
Drought regularly affects rangelands and contributes to high death rates for livestock and poverty for pastoralists. But do livestock losses occur randomly simply when rainfall is low, or are they cyclical and predictable? Previously, PARIMA researchers proposed that high stocking rates—combined with low rainfall—trigger livestock die-offs on the Borana Plateau. It takes about six years for animal numbers to recover, setting the stage for another die-off when a dry year occurs. This “boom-and-bust” cycle is based on observed herd crashes in 1983-5, 1991-3, and 1998-9. Researchers predicted in 2002 that the next major die-off would occur during 2004-06, and one …
What Are Consumers In Moyale, Kenya Willing To Pay For Improved Milk Quality?, D. Layne Coppock, Francis O. Wayua, Mohamed G. Shibia, Moses S. Mamo
What Are Consumers In Moyale, Kenya Willing To Pay For Improved Milk Quality?, D. Layne Coppock, Francis O. Wayua, Mohamed G. Shibia, Moses S. Mamo
Environment and Society Faculty Publications
Pastoralists in northern Kenya and southern Ethiopia may be able to diversify income by selling milk to urban residents. However, milk sold in open-air markets is often low in quality because it has been transported long distances without refrigeration and is subject to spoilage, or because milk is adulterated prior to sale to boost volume or enhance appearance. Open-air markets are characterized by low-income consumers who must make choices about milk quality with virtually no information other than their own sensory perceptions. PARIMA researchers used an experimental-auction approach to determine what residents in Moyale, Kenya, are willing to pay (WTP) …
Successful Implementation Of Collective Action And Human-Capacity Building Among Pastoralists In Southern Ethiopia: Lessons Learned, 2001-2008, D. Layne Coppock, Seyoum Tezera, Solomon Desta, Getachew Gebru
Successful Implementation Of Collective Action And Human-Capacity Building Among Pastoralists In Southern Ethiopia: Lessons Learned, 2001-2008, D. Layne Coppock, Seyoum Tezera, Solomon Desta, Getachew Gebru
Environment and Society Faculty Publications
Since 2000 the PARIMA project has implemented pilot risk-management activities among poverty-stricken, semi-settled pastoralists in southern Ethiopia. The goal has been to improve human welfare via collective action and capacity building. Outcomes include progress in income generation, asset conservation, and livelihood diversification. The approach has been unique to southern Ethiopia in that a bottom-up, participatory perspective has dominated. It has focused on the priorities and felt needs of local people rather than top-down development of livestock or agricultural technology. Fifty-nine collective-action groups were created. Dominated by women, they have included over 2,300 members and most groups have been recently merged …
Release Of Roadside Native Perennial Grasses Following Removal Of Yellow Starthistle, Stephen L. Young, Victor P. Claassen
Release Of Roadside Native Perennial Grasses Following Removal Of Yellow Starthistle, Stephen L. Young, Victor P. Claassen
West Central Research and Extension Center, North Platte
The ecological benefits of a roadside native perennial grass stand are compromised when invasive species become established. We evaluated the potential to regenerate existing native perennial grass stands populated with yellow starthistle (Centaurea solstitialis) on a roadside planting in the lowland hills of the interior Coast Range of northern California. The experiment was designed to determine the effects of mowing, burning, or herbicide spraying, alone and in combination, on the vegetative cover and density of native perennial grasses and C. solstitialis. The study site contained blue wildrye (Elymus glaucus) and purple needlegrass (Nassella pulchra) as well as C. solstitialis. Burn, …
Fuel Dynamics Across Southern Appalachian Landscapes, Horace Gambrell
Fuel Dynamics Across Southern Appalachian Landscapes, Horace Gambrell
All Theses
Although there have been several individual studies measuring hardwood fuels, across the central Hardwood Region and southern Appalachian Mountains, little is known of how hardwood fuels are distributed across the landscape. Understanding this distribution is essential for fire management planning. Previous studies suggest that the decay rate of litter and fine woody fuel is greater on mesic sites as compared to dryer sites. In the southern Appalachian Mountains, northeast facing slopes and protected bottoms are generally the more mesic sites, while southwest facing slopes and exposed ridge tops receive sunlight for longer periods and should be more xeric.
The objectives …
Three Dimensional Visualization Of Fire Spreading Over Forest Landscapes, Brian Williams
Three Dimensional Visualization Of Fire Spreading Over Forest Landscapes, Brian Williams
All Theses
Previous studies in fire visualization have required high end computer hardware and specialized technical skills. This study demonstrated fire visualization is possible using Visual Nature Studio and standard computer hardware. Elevation and vegetation data were used to create a representation of the New Jersey pine barren environment and a forest compartment within Hobcaw Barony. Photographic images were edited to use as image object models for forest vegetation. The FARSITE fire behavioral model was used to model a fire typical of that area. Output from FARSITE was used to visualize the fire with tree models edited to simulate burning and flame …
Laboratory Studies Of Responses Of Anuran Amphibians To Roundup Exposures: Reference Toxicant And Components, Lindsay Moore
Laboratory Studies Of Responses Of Anuran Amphibians To Roundup Exposures: Reference Toxicant And Components, Lindsay Moore
All Theses
Roundup¨ has been implicated as a possible cause for the declining amphibian populations in North America. Carefully designed laboratory toxicity tests are crucial for accurate risk assessment of the responses of anuran populations to incidental exposures of Roundup¨ herbicides. The overall objective of these studies was to determine the response of North American anuran species to exposures of Roundup¨ formulations and components to support or refute the claim that Roundup¨ is a factor in amphibian decline in North America. Aqueous 96 hour static non-renewal laboratory tests were utilized to (1) evaluate the effectiveness of copper sulfate as a reference toxicant …
Extended Visions, November/December 2008
Extended Visions, November/December 2008
Extended Visions Newsletter (ARDC)
Contents:
ARDC FEATURE UNIT - Feedmill
About the People
Mill Provides Feedstuffs for Research Projects
Ag Learning at the Festival
Eastern Nebraska Goat Workshop
Look to the Sky.... Observatory Offers Public Viewing Night - Nov. 7
Nebraska Cattlemen Visit the ARDC
Mead Magnet School
Click on the red barn and help out FFA!
UNL Representative helps Mead Students Discover Career Possibilities
Nebraska Soybean Day and Machinery Expo
Reverse Trade Mission
Saunders County Exhibitors Win Top Honors at Ak-sar-ben
The Clover Corner - What’s Going On With 4-H...
2008 Summer Field Days Results....
Utilizing Cornstalks and Other Crop Residue to Manage …
Wild Pig Habitat Use, Substrate Disturbance, And Understory Vegetation At Congaree National Park, Scott Zengel
Wild Pig Habitat Use, Substrate Disturbance, And Understory Vegetation At Congaree National Park, Scott Zengel
All Dissertations
Substrate disturbance by wild pigs ( Sus scrofa L.), mainly wild pig rooting, was evaluated bi&ndashmonthly over three years in fixed 1,000 m2 plots at Congaree National Park, South Carolina, USA. The study compared hog substrate disturbance among four habitats: three mature wetland floodplain forest types (mixed bottomland hardwoods, cypress&ndashtupelo swamp, seepage floodplain forest), and successional upland pine flatwoods adjacent to the floodplain (including former pine plantation). New disturbance included fresh signs of hog substrate disturbance. Total disturbance included both new and older hog disturbance still visible on the landscape (equivalent to all disturbance that would be recorded under less …
Topographic Analysis And Predictive Modeling Using Geographic Information Systems, Steven Hall
Topographic Analysis And Predictive Modeling Using Geographic Information Systems, Steven Hall
All Dissertations
This dissertation describes three GIS models developed to better model topographic features and the occurrence of mountain laurel (Kalmia latifolia) in the southern Appalachian Mountains. The first study presented 'A LiDAR based GIS model to calculate Terrain Shape Index on a landscape scale', attempts to develop a GIS based model to calculate the Terrain Shape Index (TSI). TSI is typically collected in the field using a series of elevation measurements to determine the average elevation change within the study plot. In this study, a GIS model is developed and TSI values compared to those collected using conventional methods. The second …
Laboratory Study Of Responses Of Anuran Amphibians To Roundup¨ Exposures: Experimental Design And Role Of Sediment, Latice Fuentes
Laboratory Study Of Responses Of Anuran Amphibians To Roundup¨ Exposures: Experimental Design And Role Of Sediment, Latice Fuentes
All Theses
The contribution of incidental exposures of Roundup¨ herbicide to amphibian declines can be evaluated with carefully designed laboratory tests. Sensitive, sentinel species of larval anurans were exposed to two formulations: the original formulation of Roundup¨ and Roundup WeatherMax¨ in 96-hour acute, aqueous and water-sediment tests. An experimental design was developed that considered and held constant relevant laboratory conditions which produced precise, replicable data. Experimental design factors decreased variability and increased precision by considering and incorporating the following: 1) range-finding tests; 2) reference toxicity tests; 3) the relative sensitivity of the species tested; 4) differences in formulation; 5) the number of …
Biodiversity Of Supplemental Wildlife Plantings And Thinned And Burned Pine Habitats In South Carolina, Marguerite Porter
Biodiversity Of Supplemental Wildlife Plantings And Thinned And Burned Pine Habitats In South Carolina, Marguerite Porter
All Theses
Biodiversity conservation is currently an important focus for forest and wildlife management. The overall objective of this study was to compare the diversity of invertebrates and vegetation in white-tailed deer food plots and natural forage areas for white-tailed deer (Odocoileus virginianus) as indicators of biodiversity. Invertebrates were chosen as the bio-indicator due to their magnitude of contribution to the biodiversity in an ecosystem (Anderson, et al., 2004), ease of capture, and sensitivity to changes in vegetative structure and quality (Hartley, et al., 2007). This study utilized five thinned and burned forested pine sites, five perennial cool-season food plots, and five …
Reduce Costs Of Irrigation Pumping Plants By Improving Efficiency, Thomas Dorn, Sandi Alswager Karstens
Reduce Costs Of Irrigation Pumping Plants By Improving Efficiency, Thomas Dorn, Sandi Alswager Karstens
Institute of Agriculture and Natural Resources: News Releases
To save energy and money, Nebraska irrigators should check their irrigation pumps for maximum efficiency, a University of Nebraska-Lincoln Extension educator said.
Irrigation pumps that operate at the average efficiency found in university tests are using 30 percent more energy than necessary, said Tom Dorn, extension educator in Lancaster County.
"At today's energy prices, identifying a pumping plant that needs adjustment or repair could save hundreds if not thousands of dollars per year," Dorn said. "Now that irrigation season is over, look at your records and decide which of your pumping plants should be looked at by a professional. If …
2008 Oregon Harvest Report, Oregon Wine Board
2008 Oregon Harvest Report, Oregon Wine Board
Oregon Wine Board Documents
This harvest report for the Oregon wine industry from 2008 discusses how a cool growing season led to a dry and mild harvest. According to the report, the late harvest and lower yields brought about mature and complex flavors, translating to a vintage with good potential for high quality. The report also includes four-region comparative data prepared by climatologist Dr. Greg Jones.
Alternative Cereal Processing Technologies [Conference Program And Proceedings] (Lobatse, Botswana, November 4-6, 2008), Martin Kebakile, Kemelo Ookeditse
Alternative Cereal Processing Technologies [Conference Program And Proceedings] (Lobatse, Botswana, November 4-6, 2008), Martin Kebakile, Kemelo Ookeditse
INTSORMIL Presentations
Objectives of the workshop:
To review the current status of local cereals production and processing explore opportunities for growing the cereal industry.
To promote diversification of cereal processing by sensitizing all players and stakeholders in the cereals industry about readily available alternative cereals processing technologies which have commercial potential.
To promote and strengthen collaboration between local and international researchers, as well as fostering strategic partnerships between researchers and users of technologies to develop customer tailored processing technologies.
Third Thursday 11-2008, Institute Of Agriculture
Impact Of An External Energy On Staphylococcus Epidermis [Atcc –13518] In Relation To Antibiotic Susceptibility And Biochemical Reactions – An Experimental Study, Mahendra Kumar Trivedi
Impact Of An External Energy On Staphylococcus Epidermis [Atcc –13518] In Relation To Antibiotic Susceptibility And Biochemical Reactions – An Experimental Study, Mahendra Kumar Trivedi
Mahendra Kumar Trivedi
Purpose:
While spiritual and mental energies are known to man, their impact has never been scientifically measurable in the material world and they remain outside the domain of science. The present experiment on Staphylococcus epidermis [ATCC –13518], validate the effects of such energy transmitted through a person, Mahendra Trivedi, which has produced an impact measurable in scientifically rigorous manner.
Methods:
Staphylococcus epidermis strains in revived and lyophilized state were subjected to spiritual energy transmitted through thought intervention and/or physical touch of Mahendra Trivedi to the sealed tubes containing strain, the process taking about 3 minutes and were analyzed within 10 …
Understanding Consumer Preference For Functional Barley Tortillas Through Sensory, Demographic, And Behavioral Data, Ayako Toma, Maria Botero Omary, Kurt A. Rosentrater, Elizabeth A. Arndt, Naruemon Prasopsunwattana, Sutida Chongcham, Rolando A. Flores
Understanding Consumer Preference For Functional Barley Tortillas Through Sensory, Demographic, And Behavioral Data, Ayako Toma, Maria Botero Omary, Kurt A. Rosentrater, Elizabeth A. Arndt, Naruemon Prasopsunwattana, Sutida Chongcham, Rolando A. Flores
Kurt A. Rosentrater
Consumption of whole grains as part of a health-promoting diet is encouraged among Americans due to beneficial nutrients and phytochemicals. The main objectives of this study were to investigate the effect of whole barley flour particle size on consumer acceptance of whole grain and soluble fiber-enriched tortillas; to examine the effect of demographic and behavioral data on consumer acceptance; and to establish relationships between consumer acceptance and survey results to identify market opportunities among particular groups of consumers. Four experimental tortillas and two representative commercial brands were tested by 95 untrained panelists using a 9-point hedonic scale for appearance, color, …
No Evidence That Bacillus Thuringiensis Genes And Their Products Influence The Susceptibility Of Corn Residue To Decomposition, R. Michael Lehman, Shannon L. Osborne, Kurt A. Rosentrater
No Evidence That Bacillus Thuringiensis Genes And Their Products Influence The Susceptibility Of Corn Residue To Decomposition, R. Michael Lehman, Shannon L. Osborne, Kurt A. Rosentrater
Kurt A. Rosentrater
The possibility that Bacillus thuringiensis (Bt) corn (Zea mays L.) residues resist decomposition compared to non-Bt residues would present direct (soil carbon turnover times) and indirect (changes in tillage practices) effects on carbon budgets in agricultural systems. We evaluated the relative decomposition of residue from two pairs of Bt and non-Bt corn hybrids from different seed manufacturers buried in the root zone of adjacent Bt and non-Bt corn plots over a period of 384 d. We found no persistent differences in residue decomposition among the different hybrids regardless of the seed manufacturer or the presence of the Bt genes (both …
Determination Of Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater
Determination Of Machining Parameters Of Corn Byproduct Filled Plastics, Kurt A. Rosentrater
Kurt A. Rosentrater
In a collaborative project between the USDA and Northern Illinois University, the use of ethanol corn processing by-products as bio-filler materials in the compression molding of phenolic plastics has been studied. This paper reports on the results of a machinability study in the milling of various grades of this material. Three types of samples were studied: 100%, 75% and 50% phenolic samples. The milling operation was carried out with a fixed depth of cut of 2.0 mm using a 12.5 mm diameter two-fluted end-mill. The cutting speed was varied between 120 and 160 m/min at feeds between 200 and 300 …