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Full-Text Articles in Life Sciences
Fire Type Classification In The Brazilian Tropical Moist Forest Biome, Sanath Kumar Sathyachandran
Fire Type Classification In The Brazilian Tropical Moist Forest Biome, Sanath Kumar Sathyachandran
Electronic Theses and Dissertations
The Brazilian Tropical Moist Forest Biome (BTMFB) is “Earth’s greatest biological treasure and a major component of the earth system” and forest degradation and deforestation by fire is a serious issue in this region. Fires in the BTMFB can be broadly classified as maintenance, deforestation and forest fire types. Spatially and temporally explicit information on the incidences of fire types are important as they have widely varying atmospheric emissions and ecological impacts. Satellite based remote sensing is a practical means of monitoring the BTMFB that spans almost 4 million km2. However, there has been no way to reliably …
A Comparison Of Corn Yield Forecasting Models, Nicholas Jorgensen
A Comparison Of Corn Yield Forecasting Models, Nicholas Jorgensen
Electronic Theses and Dissertations
The purpose of this research is to compare and analyze several different yield forecasting methods. The study analyzes corn yields in Ohio and South Dakota for the years 1986 through 2012. A base model, with a trend and state dummy variable is developed. Two competing models, one with objective variables and one with subjective variables, are then developed as additions to the base model. The competing objective model is developed by adding accumulated growing degree days (GDD) and accumulated rainfall variables. The competing subjective model is developed by adding a USDA crop conditions index (CCI) variable. The models are estimated …
Developing A Survey To Measure School Wellness Policy Engagement Among School Administrators, School Staff And Parents, Tara J. Pratt
Developing A Survey To Measure School Wellness Policy Engagement Among School Administrators, School Staff And Parents, Tara J. Pratt
Electronic Theses and Dissertations
Introduction: As a means to combat the childhood obesity epidemic, congress enacted the Child Nutrition and WIC Reauthorization Act of 2004. This act required all school districts participating in the Healthy School Lunch or Breakfast Program to create and implement a school wellness policy. In 2010 the Healthy, Hunger- Free Kids Act required additional components be added to school wellness policies, such as public notification of wellness policy initiatives. There is currently not a survey tool available that measures these new mandate requirements among school administrators, school staff and parents in school wellness policies. Goal: The goal of this research …
Lactational Performance Of Dairy Cows Fed Yeast Derived Microbial Protein In Low And High Forage Diets, Angela Kristia Manthey
Lactational Performance Of Dairy Cows Fed Yeast Derived Microbial Protein In Low And High Forage Diets, Angela Kristia Manthey
Electronic Theses and Dissertations
The objective of this study was to investigate the effect of substituting soybean meal products with yeast-derived microbial protein [(YMP) DEMP; Alltech Inc., Nicholasville, KY] in diets containing two forage concentrations. Sixteen Holstein cows (4 primiparous and 12 multiparous) were randomly assigned to a replicated 4 × 4 Latin square in a 2 × 2 factorial arrangement of treatments. Diets contained low (LF; 45% of diet DM) or high forage (HF; 65% of diet DM) and YMP at 0 (NYMP) or 2.25% (WYMP) of the diet. The forage mix consisted of 67% corn silage and 33% alfalfa hay (DM basis). …
The Effects Of Maternal Energy Restriction During Mid-Gestation On Growth Performance, Immune Function, And Gene Expression In The Resultant Beef Offspring, Anna Rose Taylor
The Effects Of Maternal Energy Restriction During Mid-Gestation On Growth Performance, Immune Function, And Gene Expression In The Resultant Beef Offspring, Anna Rose Taylor
Electronic Theses and Dissertations
Fetal or developmental programming evaluates the effects of maternal alterations on the developing fetus and the potential consequences later in life. To understand the effects of mid-gestation energy restriction on beef cows and their calves the objectives of this dissertation were to determine the effects of dietary energy restriction on measurements associated with cow energy status, and the effects on growth performance, the humoral immune response, and subcutaneous adipose tissue gene expression in the resultant beef offspring. Pregnant beef cows were allotted into 2 treatment groups during mid-gestation: 1) fed at maintenance (Positive Energy Status (PES)); or 2) fed just …