Life Sciences Commons^™

Comparisons Of Two Symmetric Density Function Solutions Of Aphid Population Growth Models, J. H. Matis, T. R. Kiffey, W. Van Der Werf, A. C. Costamagna, T. I. Matis, G. J. Michels Jr

Conference on Applied Statistics in Agriculture

Aphids are among the world's most devastating crop pests, and their population trajectories in field crops are characterized by rapid boom and bust, under the influence of bottom up (host plant) and top down (natural enemy) forces. Theoretical development in aphid growth trajectory modeling has recently advanced quite significantly, and the logistic and normal probability density functions have been found to provide analytical solutions to mechanistic models of the aphid population growth dynamics. The logistic or hyperbolic secant squared model captures a growth trajectory shaped by negative feedback of the aphid population on itself, due to the accumulation of adverse …

Statistical Issues In The Normalizationof Multi-Species Microarray Data, John R. Stevens, Balasubramanian Ganesan, Prerak Desai, Sweta Rajan, Bart C. Weimer

Conference on Applied Statistics in Agriculture

Several species of bacteria are involved in the production of cheese, including Lactobacillus brevis and Lactococcus lactis. A custom-designed Affymetrix microarray was recently developed to study gene expression in three organisms on a single chip. This array contains only perfect match features for the coding and non-coding regions in the genomes of all three sequences. The multi-species nature of this array version raises interesting questions regarding the preprocessing or normalization strategies for the analysis of gene expression data. We present and evaluate several possible strategies using both cDNA dilution data and experimental expression data from a repeated measures design. The …

Multi-Trait Qtl Mapping Using A Structural Equation Model, Xiaojuan Mi, Kent M. Eskridge, Dong Wang

Conference on Applied Statistics in Agriculture

Research on mapping quantitative trait loci (QTL) often results in data on a number of traits that have well established causal relationships. Many multi-trait QTL mapping methods, taking into account the correlation among the multiple traits, have been developed to improve the statistical power of the test for QTL and the precision of parameter estimation. However none of these methods are capable of incorporating the causal structure among the traits with the consequence that genetic functions of the QTL may not be fully understood. Structural equation modeling (SEM) allows researchers to explicitly characterize the causal structure among the variables and …

Dynamic Clustering Of Cell-Cycle Microarray Data, Lingling An, R. W. Doerge

Conference on Applied Statistics in Agriculture

The cell cycle is a crucial series of events that are repeated over time, allowing the cell to grow, duplicate, and split. Cell-cycle systems play an important role in cancer and other biological processes. Using gene expression data gained from microarray technology it is possible to group or cluster genes that are involved in the cell-cycle for the purpose of exploring their functional co-regulation. Typically, the goal of clustering methods as applied to gene expression data is to place genes with similar expression patterns or profiles into the same group or cluster for the purpose of inferring the function of …

Testing Variance Components By Two Jackknife Methods, Jixiang Wu, Johnie N. Jenkins, Jack C. Mccarty

Conference on Applied Statistics in Agriculture

The jackknife method, a resampling technique, has been widely used for statistical tests for years. The pseudo value based jackknife method (defined as pseudo jackknife method) is commonly used to reduce the bias for an estimate; however, sometimes it could result in large variation for an estimate and thus reduce the power for parameters of interest. In this study, a non-pseudo value based jackknife method (defined as non-pseudo jackknife method) was used for testing variance components under mixed linear models. We compared this non-pseudo value based jackknife method and the pseudo value based method by simulation regarding their biases, Type …

Editor's Preface And Table Of Contents, Gary L. Gadbury

Conference on Applied Statistics in Agriculture

These proceedings contain papers presented in the twentieth annual Kansas State University Conference on Applied Statistics in Agriculture, held in Manhattan, Kansas, April 27- April 29, 2008.

Nrc’S Decision Process: Judging The Safety Of A Proposed Repository, Janet Kotra

Native American Forum on Nuclear Issues

Abstract:

-Provide an overview of the role of the U.S. Nuclear Regulatory Commission (NRC) at Yucca Mountain

-Describe the process NRC will use to decide whether or not to authorize construction of a repository at Yucca Mountain

-Explain options and highlight important milestones that apply to Tribes as potential participants in NRC’s process

Fighting Nuclear Waste At Skull Valley, Margene Bullcreek

Native American Forum on Nuclear Issues

Abstract:

-Reasons We Oppose Nuclear Waste

-Sovereignty

-Traditional values must be protected

-Protect sacredness of our culture, plants,

animals, air, and water

-Affects on community health

-Protect reservation and homeland

-To protect the air and water

-To protect future generations

-Environmental Justice

Poster Session, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Kentucky Water Awareness Month Packet, Ashley Osborne, UK Cooperative Extension Service, ENRI Task Force
• Recent Enhancements to the Kentucky Groundwater-Quality Data Search Engine, Bart Davidson and R. Stephen Fisher, KGS
• Diatom Colonization Patterns and Carbon Stable Isotopic Ratios in Developing Periphyton at Springs of Differing Geologic Origin in Land-Between-the-Lakes, Courtney Snapp and Susan Hendricks, Water Sciences Program, Murray State University
• Seasonal Changes in Stratification and Oxygen Content of a Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Jill Hunter and Walter Borowski, Dept of Geography and Geology, EKU
• Water Pioneers Water Quality Program 2007, Stephanie Jenkins, …

Session 2d: Pathogen Transport, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Assessment of Nonpoint Source Impacts on Groundwater Quality in South Elkhorn Creek Basin, Central Kentucky, Robert J. Blair and others, Kentucky Division of Water, Frankfort
• Karst Groundwater Infiltration of the Sanitary Sewer within the Beargrass Creek Watershed, Jefferson County, Kentucky, Joseph Ray and others, Kentucky Division of Water
• Illicit Discharge into Town Branch in Lexington, Kentucky, Jim Buckles and others, Tetra Tech, Lexington
• Assessment of Water Quality Trends in the Upper Forks of the Kentucky River Basin: Focus on Pathogen Impairment, Chandramouli Viswanathan, Kentucky Water Resources Research Institute, UK

Session 2c: Water Quality, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Determinations of Bioavailable Fractions in the Assessment of Metals in Big and Little Bayou Creeks……, McCracken County, Kentucky, David J. Price, Dept Biology, UK
• Creation of a Catalog of Environmental Mercury Databases in Kentucky, Caroline Chan and others, School of Public Health and Information Sciences, U of L
• Using Nitrogen Isotopes to Trace Nutrient Inputs to a Eutrophic Lake, Wilgreen Lake, Madison County, Kentucky, Walter Borowski and Theresa Aguiar, Dept of Geography and Geology, EKU
• Using Microbial Distribution and Abundance in a Eutrophic Lake as a Tracer for Nutrient Inputs, Wilgreen Lake, Madison County Kentucky, Theresa …

Session 2b: Variety, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Mud, Horses and Clean Water – A BMP Demonstration Project for Suburban Horse Owners, Steve Higgins and others, Biosystems and Ag Engineering, UK
• A Topological Model of Open Channel Flows, Brian Belcher and Jimmy Fox, Dept of Civil Engineering, UK
• Rain Gardens: Restoring a Waste Water to a Priceless Treasure, H. David Gabbard, LFUCG, Richard Walker, Tetra Tech, and Sandy Camargo, CDP Engineers
• Kentucky Erosion Prevention and Sediment Control (KESPSC) – An Answer to the Question “What is a Qualified Inspector?” Shelby Jett, Kentucky Transportation Cabinet, Kevin Gibson and John Ricketts, Stantec Consulting Services, Lexington

Session 2a: Groundwater, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• How Close Do We Need to Sample for Appropriate Solute Transport Characterization Through the Vadose Zone? Ole Wendroth and others, Dept of Plant and Soil Sciences, UK
• Efficiently Locating and Repairing Damaged Sewer Lines in a Karst Terrane, Kevin Lyne, LFUCG and Robert Blair, KDOW
• Hydrogeologic Investigations of Pavement Subsidence in the Cumberland Gap Tunnel, Jim Dinger and others, KGS

Session 1d: Land Use, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Mountaintop Mining and Sustainable Development Opportunities for Appalachia, J. Stephen Gardner, Engineering Consulting Services, Inc., Lexington
• Spatial Characterization of Kentucky’s 2005-2001 Land Cover Change, A Kentucky Landscape Census Product, Demetrio Zourarakis and others, Kentucky Division of Geographic Information
• Feasibility Study of Cover-Collapse Rate in the Western Pennyroyal Karst of Kentucky, James Currens and Randall Paylor, KGS
• Kentucky SPARROW Model and its Applications to Understanding Nutrient Loads, Tanja N. Williamson, USGS Kentucky Water Science Center

Session 1c: Student Research Projects, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• A 3-D Computational Fluid Dynamics Code for Simulation of Pump Stations with Vertical Plunging Jet and Air Bubble Transport, Tien Mun Yee and Scott Yost, Dept of Civil Engineering, UK
• Chemical Evolution of Groundwater in the Wilcox Aquifer of the Mississippi Embayment, Estifanos Haile and Alan Fryar, Dept of Earth and Environmental Sciences, UK
• Sediment Organic Matter Degradation within Storage Zones Deposited In-Stream, Charles Davis and Jimmy Fox, Dept of Civil Engineering, UK
• Effectiveness of Improved Skid Trail Headwater Stream Crossings, Jeffrey Stringer and Christopher Reeves, Dept of Forestry, UK

Session 1b: Education, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Community Based Science, Water Quality and Nonpoint Source Pollution, Carol Hanley and others, Tracy Farmer Center for the Environment, UK
• A Stormwater Education Program to Assist Kentucky’s MS4 Phase II Communities, Yvonne Meichtry and Julie Gee, Kentucky Transportation Cabinet, Frankfort
• Water/Wastewater Technician Training Institute: A Holistic Approach to Developing a Professional Water and Wastewater Workforce, Andrew Ernest, Center for Water Resource Studies, WKU
• Geology for Everyone, New Map Products from the Kentucky Geological Survey, Daniel Carey, KGS

Session 1a: Watersheds, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

• Cane Run Watershed Assessment and Restoration Project, Steve Higgins and others, Biosystems and Ag Engineering, UK
• Kentucky Institute for Watershed Management Support, Andrew Ernest, Center for Water Resource Studies, WKU
• Watershed Planning Guidebook for Kentucky Communities, Katie Holmes and others, Kentucky Waterways Alliance

Proceedings Of 2008 Kentucky Water Resources Annual Symposium, Kentucky Water Resources Research Institute, University Of Kentucky

Kentucky Water Resources Annual Symposium

This conference was planned and conducted as part of the state water resources research annual program with the support and collaboration of the Department of the Interior, U.S. Geological Survey and the University of Kentucky Research Foundation, under Grant Agreement Number 06HQGR0087.

The views and conclusions contained in this document and presented at the symposium are those of the abstract authors and presenters and should not be interpreted as necessarily representing the official policies, either expressed or implied, of the U.S. Government or other symposium organizers and sponsors.

Photo Highlights Of The 28th Kentucky Alfalfa Conference, Kentucky Alfalfa Conference

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

Hay Supply, Price And The Future, Tom Keene

Kentucky Alfalfa and Stored Forage Conference

As we prepare for the 2008 hay crop, it’s probably a good time to look back and see what the ’07 crop brought to us and wonder if it will have any bearing on the upcoming 2008 crop.

Alfalfa Hay And Balage: Testing For Quality, Kimberly Field

Kentucky Alfalfa and Stored Forage Conference

Why Test Your Hay?

• By knowing the percentages and protein levels you can increase/decrease the amount of supplements needed from your analysis report and will help the producer set feeding rations
• If you do not know what you have in your forage you are over or under feeding your livestock – therefore affecting the health of your animal and your pocket book

Is There A Benefit To Alfalfa Balage?, Gary Bates

Kentucky Alfalfa and Stored Forage Conference

Making hay in the mid-South has always been a difficult process. High humidity and rainfall often make drying a long, tedious, if not impossible proposition. Over the last few years there has been an increased interest in making round bale silage, or balage, from forage crops. Fermenting alfalfa for storage has several advantages and disadvantages over regular haymaking systems.

Alfalfa: Forage Crop Of The Future, Neal P. Martin, David Mertens, Ronald Hatfield, Hans Jung

Kentucky Alfalfa and Stored Forage Conference

In 2007, U.S. farmers harvested 23.6 million acres of alfalfa. Alfalfa harvested as hay and haylage produced 82.8 million tons valued at approximately $9.4 billion, ranking behind only corn and soybeans. Alfalfa hay supports dairy, beef, sheep, and horse production in the U.S. as well as a growing export market.

National Hay Association President's Perspective: What A Year To Be President, Ron Tombaugh

Kentucky Alfalfa and Stored Forage Conference

Over the years, I have had the opportunity to attend the Kentucky Alfalfa Conference in Cave City. Usually it was combined with a trip to deliver hay into Kentucky to either a dairy, beef, or horse customer. This is an excellent event.

The following is my “acceptance” speech given in September 2007 in Columbus, Ohio, when I was installed as President of the National Hay Association.

Certified Weed Free Hay And Straw Program, Kenny E. Perry

Kentucky Alfalfa and Stored Forage Conference

There is a growing demand in North America for the use of certified weed free hay and straw as a preventative program to limit the spread of noxious weeds. This voluntary certification program is designed to assure that hay and straw sold with proper certification identification meets minimum standards designed to limit the spread of noxious and undesirable weeds. Buyers are provided assurance that hay and straw certified through this program meets these minimum standards.

Alfalfa: Back To Basics, S. Ray Smith, Thomas Adam Probst

Kentucky Alfalfa and Stored Forage Conference

In the past, many university research trials and on-farm demonstrations have determined a range of cutting intervals for alfalfa. Most researchers have agreed that the optimum harvest frequency is about every 35 days to ensure top yields, without sacrificing too much in the way of forage quality and stand persistence. Others use a strategy of harvesting at 10% bloom.

Haymaking: A Trip Down Memory Lane, Garry D. Lacefield, John E. Baylor

Kentucky Alfalfa and Stored Forage Conference

On a hot day in August, I climbed into the dust-free air-conditioned cab of a new tractor to assist in a hay baling demonstration during a field day. Hay yield was low as a result of the drought, so it was important that I get everything from the small windrow. I adjusted the volume on the surround sound stereo where I had just inserted a CD of the Eagles Greatest Hits. Now we’re ready to bale – first let me check the GPS and get a check on the moisture of the hay coming into the bale chamber – moisture …

Foreword And Recipients Of Kentucky Alfalfa Awards [2008], Garry D. Lacefield, Christi L. Forsythe

Kentucky Alfalfa and Stored Forage Conference

No abstract provided.

Making Forages Work Down On The Farm, Todd Clark

Forage Symposium at the Kentucky Cattlemen’s Convention

No abstract provided.

Making Forages Work Down On The Farm, Russell C. Hackley

Forage Symposium at the Kentucky Cattlemen’s Convention

No abstract provided.