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Massachusetts Agricultural Experiment Station

Flies Impacting Livestock, Poultry and Food Safety

House flies are the major vector of numerous food pathogens (e.g., Escherichia coli). It has been suggested that the fly crop is the major reservoir for the pathogen and also that this is where horizontal transmission of antibiotic resistance occurs. The salivary glands of most flies involved in vectoring pathogens are also involved in pathogen transmission and their nutrient and pathogen uptake while feeding. We know very little about those factors involved in the regulation of both crop filling and emptying.

Food Based Approach for Prevention of Childhood Obesity

Both adult-onset obesity and childhood obesity pose real health risks, with childhood obesity known to be associated with increased risk of chronic diseases. With current rising trends of overweight and obese children, there is great need to develop additional practical approaches to target the obesity epidemic. The objective of this proposed research is to develop a feasible and practical food-based approach to help reduce the incidence of childhood obesity and overweight children.

Food Security, Food Practices, and Health Risks Among Pregnant and Postpartum Cambodian Women Living in Massachusetts

"Since the 1980's, the cities of Lowell and Lynn, Massachusetts have become home to large numbers of former refugees from Cambodia. Lowell is home to the second largest population of Cambodians in the United States. More than half of all Cambodian Americans live below the poverty line and a significant number are at high risk for food insecurity and hunger. Food insecurity has been associated with depression, poor micronutrient intake, and obesity among women of reproductive age.

Forests as carbon sinks, exploring the viability of carbon sequestration

Carbon dioxide is a greenhouse gas that contributes to global warming or climate change. One way to reduce the effect of carbon dioxide acting as a greenhouse gas is to accumulate it in trees and forests. Trees naturally take in carbon dioxide as part of growth, and turn it into wood. Trees and forests act as a sink to collect and hold carbon and as a result are thought of as part of the answer to mitigate increasing greenhouse gases in the atmosphere and increased global warming. Roughly 55% of all forests in the United States are privately owned and 92% of these owners are families.

Functional Genomics to Investigate and Characterize Genetic Factors Governing DMI-Sensitivity in Sclerotinia Homeocarpa

This research involves utilizing genomics and molecular biology tools to understand the basis of DMI (demethylation inhibitor) fungicide resistance dollar spot, the most important disease of turf grasses for golf courses. For this, we will take advantage of cutting-edge research tools in genomics and molecular biology to shed light on how the dollar spot fungus is able to overcome fungicides at the molecular level.

Gene-Silencing-Based High-Throughput Identification of Genes Required for the Nitrogen-Fixing Symbiosis

Unique among crop species, legumes produce their own nitrogen nutrient through a symbiosis with nitrogen-fixing bacteria collectively known as rhizobia. This nitrogen-fixing symbiosis is a complex system, and currently we know too few of the molecular players involved. This project will optimize two methods to reduce the activity of a given gene, and use these methods to screen for legume genes required for the function of the nitrogen-fixing symbiosis.

General Deterrence, Audit Uncertainty and Environmental Regulation

The efficacy of many government regulations, especially environmental policies, depends largely on the voluntary compliance of subjects. Monitoring of subjects and enforcement of the law acts to induce compliance; however, it is often too costly to employ subjects. Monitoring of subjects and enforcement of the law acts to induce compliance; however, it is often too costly to employ the resources required to induce perfect compliance.

Health Correlates of Nutrients in Soils and Foods

Improving human nutrition without artificial fortification of food or use of supplementary mineral nutrients is important in reducing malnutrition. Malnutrition from deficiencies of mineral elements is reported to be on the rise worldwide, even in the United State; it is estimated that half of the world population suffers from mineral nutrient deficiencies, limiting their physical, intellectual, and mental health activities. The deficiencies appear to derive from diminished contents of mineral nutrients in foods of plant (vegetables, fruits) or animal (meats, milk, cheese) origins.

Hydropedology: Genesis, Properties, and Distribution of Hydromorphic Soils

Researchers will evaluate the potential use of field indicators of hydric soils to characterize wetland hydroperiods with respect to frequency, depth, and duration of water table fluctuations; test the effectiveness of proposed hydric soil indicators to identify 'problem hydric soils'; test monitoring protocols used to identify reducing conditions to determine if they are effective within a range of soil conditions within the Northeast; and investigate the hydraulic properties of hydromorphic soils with episaturation.

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