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Articles 1 - 7 of 7
Full-Text Articles in Life Sciences
An Autothermal, Representative Scale Test Of Compost Heat Potential Using Geostatistical Analysis, William J. Mccune-Sanders
An Autothermal, Representative Scale Test Of Compost Heat Potential Using Geostatistical Analysis, William J. Mccune-Sanders
Graduate College Dissertations and Theses
Composting has been practiced for thousands of years as a way of stabilizing and recycling organic matter into useful soil amendments. Thermophilic compost releases significant amounts of heat at temperatures (~140 °F) that are useful for environmental heating or process water. This heat has been taken advantage of in various ways throughout history, but development of a widely adopted technology remains elusive.
The biggest barrier to adoption of compost heat recovery (CHR) systems is projecting accurate, attractive economic returns. The cost of transfer equipment is significant, and with variability in composting substrates and methods, it is difficult to predict the …
Labor On Vermont Dairy Farms: A Producer Perspective, Emily Irwin
Labor On Vermont Dairy Farms: A Producer Perspective, Emily Irwin
Graduate College Dissertations and Theses
To compete with larger, more efficient dairy farms, build resilience against increasingly volatile milk prices, and increase farm income, farms in traditional dairy states such as New York, Wisconsin, and Vermont, have been forced to expand their herds and increase production. Many dairy farmers do not have formal training in human resources management, and find the transition to a larger, non-family workforce to be challenging. In addition, farmers who have transitioned to a primarily Latinx workforce also face considerable cultural and language barriers. The quality of human resource management can have a significant impact on a farm business, and evidence …
Genotypes And Phenotypes Of Staphylococci On Selected Dairy Farms In Vermont, Robert Mugabi
Genotypes And Phenotypes Of Staphylococci On Selected Dairy Farms In Vermont, Robert Mugabi
Graduate College Dissertations and Theses
The genus Staphylococcus contains at least 47 species and 23 subspecies. Bacteria in this genus are ubiquitous; many are commensals on human and animal skin and can be opportunistic pathogens. In dairy cattle, staphylococci are the leading cause of intramammary infections (IMI) and mastitis. Mastitis is the inflammation of the mammary gland, and is one of the leading infectious diseases causing production losses in the dairy industry. Based on the ability to clot blood plasma in vitro, members of the genus can be divided into two groups: coagulase positive staphylococci (CPS) and coagulase negative staphylococci (CNS). In the dairy industry, …
"Teamwork Makes The Dream Work": Investigating The Impact Of Social Capital In The Tampa Bay, Fl Community Food System, Monica Petrella
"Teamwork Makes The Dream Work": Investigating The Impact Of Social Capital In The Tampa Bay, Fl Community Food System, Monica Petrella
Graduate College Dissertations and Theses
The research in this thesis investigates the relationship between social capital and the ability of a community food system (CFS) to contribute to broad community development goals. Social capital is understood to be an intangible resource that proliferates from strong relationships stocked with trust, reciprocity, and cohesiveness.
This research presents a journey through the literature to provide an overview of community food systems, the anticipated benefits that can result from adequate expansion, and how the concept of "embeddedness" contributes to development between the CFS and the community at large. The concept of social capital is introduced and discussed as previous …
Enhancing The Efficacy And Thermotolerance Of Selected Beauveria Bassiana Isolates For Management Of Sunn Pest, Eurygaster Integriceps, Using Electrofusion Techniques, Agrin Davari
Graduate College Dissertations and Theses
Sunn Pest, Eurygaster integriceps Puton (Heteroptera: Scutelleridae), is a major pest of wheat and barley in West and Central Asia and East Europe. The insect causes a significant reduction in yield and quality of grains. Entomopathogenic fungi, especially Beauveria bassiana are among the most dominant microbial agents that have been used against Sunn Pest. However, there are concerns related to their efficacy and thermotolerance particularly in countries with high temperature regimes.
Nine B. bassiana isolates were tested against Sunn Pest to estimate their virulence and speed of infection under laboratory conditions. The isolates were also exposed to 25, 36, 38 …
Can Urban And Peri-Urban Agriculture Create Food Sovereign Communities? Case Studies In Cuba And Burlington, Vt, Bennett Lafond
Can Urban And Peri-Urban Agriculture Create Food Sovereign Communities? Case Studies In Cuba And Burlington, Vt, Bennett Lafond
Graduate College Dissertations and Theses
Case studies from Cuba's Urban and Peri-Urban agriculture (UPA) revolution show that urban growing can fuel locally driven production of essential foods with minimal inputs, creating unprecedented opportunities for community food sovereignty. The fact that Cuba produces 60-70% of its vegetable needs on 25% of the land shows that the barriers that UPA faces are more sociopolitical than agronomic. As an agricultural hub with an abundance of rural land within close proximity of the city, the need for UPA in Burlington, VT may not be as readily apparent. When compared to nearby small vegetable growers through the lens of a …
Governing Environmental And Economic Flows In Regional Food Systems, Michael Bishop Wironen
Governing Environmental And Economic Flows In Regional Food Systems, Michael Bishop Wironen
Graduate College Dissertations and Theses
Globalization, specialization, and intensification have transformed the global food system, generating material flows and impacts that span multiple scales and levels, presenting novel governance challenges. Many argue for a transition toward a sustainable food system, although the scope and specific goals are fiercely contested. Theory and method is needed to evaluate competing normative claims and build legitimacy.
In this dissertation Vermont serves as a case study to investigate how environmental and economic flows impact regional governance, focusing on efforts to manage agricultural phosphorus to achieve water quality goals. A material flow account is developed to estimate phosphorus flows embedded in …