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Articles 1 - 5 of 5
Full-Text Articles in Physical Sciences and Mathematics
Differential Toxicity Of Pm2.5 Components And Modified Health Effects Modeling: A Case Study In Nepal, Jeremy Brownholtz
Differential Toxicity Of Pm2.5 Components And Modified Health Effects Modeling: A Case Study In Nepal, Jeremy Brownholtz
Masters Theses
During the latter part of the 20th century, a transition away from coal as a major energy source in developed countries was accompanied by a notable decrease in air pollution-related deaths in those countries. Currently the same phenomenon is being observed in developing nations like China and India. However, many areas that do still rely on coal for their energy production or industrial needs also reflect a gap in research on the effects of those specific processes on local populations. Located in Nepal at the foot of the Himalayan Plateau, Kathmandu represents one such location. The local economy of …
High-Dimensional Feature Selection And Multi-Level Causal Mediation Analysis With Applications To Human Aging And Cluster-Based Intervention Studies, Hachem Saddiki
Doctoral Dissertations
Many questions in public health and medicine are fundamentally causal in that our objective is to learn the effect of some exposure, randomized or not, on an outcome of interest. As a result, causal inference frameworks and methodologies have gained interest as a promising tool to reliably answer scientific questions. However, the tasks of identifying and efficiently estimating causal effects from observed data still pose significant challenges under complex data generating scenarios. We focus on (1) high-dimensional settings where the number of variables is orders of magnitude higher than the number of observations; and (2) multi-level settings, where study participants …
A Comparative Sustainability Study For Treatment Of Domestic Wastewater: Conventional Concrete And Steel Technology Vs. Vegetated Sand Beds (Vsb’S) And Their Relative Differences In Co2 Production, Alicia M. Milch
Masters Theses
Conventional wastewater treatment in the U.S. is an energy dependent and carbon dioxide emitting process. Typical mechanical systems consume copious amounts of energy, which is most commonly produced from fossil fuel combustion that results in the production of CO2. The associated organic load is also metabolized by microorganisms into CO2 and H2O. As the desire to reduce CO2 output becomes more prominent, it is logical to assess the costs of conventional treatment methods and to compare them to alternative, more sustainable technology. Vegetated Sand Bed (VSB) and Reed Bed (RB) systems are green technologies …
Middlefield Open Space And Recreation Project, Center For Economic Development
Middlefield Open Space And Recreation Project, Center For Economic Development
Center for Economic Development Technical Reports
Over one thousand acres of farmland, open space, and wetlands are converted to residential or commercial development each week in New England. In Massachusetts, nearly two acres of open space land is lost to development every hour. Current development trends suggest that this building pattern, referred to as sprawl, is likely to continue into the near future. Because the negative consequences of sprawl development are highly visible, residents of Massachusetts are becoming increasingly concerned about its impact on their communities. Residents see the unique character of their communities being transformed by uncontrolled residential and commercial development. Green fields and open …
City Of Gardner, Massachusetts Inventory Of Existing And Removed Tanks, Center For Economic Development
City Of Gardner, Massachusetts Inventory Of Existing And Removed Tanks, Center For Economic Development
Center for Economic Development Technical Reports
The purpose of this project is to provide the City of Gardner with a list of contaminated sites in the Rear Main Street Area. During the past month, I have been researching potential brownfield locations within this corridor, and inputting them into a working database. Overall, the problem identified is that the city has little knowledge of how much land is contaminated within its city. Therefore, the goal of my project was to identify the parcels in the Rear Main Street Area that have been contaminated with hazardous materials.