Boxborough Economic Development Study: Phase 1, Technical Memo

The Town of Boxborough’s Economic Development Committee (EDC) contracted with the Center for Economic Development at the University of Massachusetts Amherst to produce an economic development study. Phase 1 of the study, conducted from September through December 2019 by Regional Planning Studio master’s students, began with an investigation of existing conditions and public opinion on economic development and concluded with four plausible future economic development scenarios designed to support the eventual creation of the Town’s long-term economic development plan

Designing a Data Commons for Big Data

Infrastructure systems and smart buildings are rapidly joining the Internet of Things and evolving into advanced cyber-physical systems. As a result, massive amounts of data that characterize the structure and function of urban areas in minute detail are being generated. However, these data are often fragmented and managed by a variety of public agencies and private corporations. As a result, they are not readily available to the urban research community. This paper lays out a strategy to develop a data commons that would collect, curate and distribute Urban Big Data to support research on infrastructure systems and how they interact with the human populations they support

Boxborough Economic Development Study: Phase 2, Technical Memo

The Town of Boxborough’s Economic Development Committee (EDC) contracted with the Center for Economic Development at the University of Massachusetts Amherst to produce an economic development study. Phase II began in January of 2020 and provides a deeper evaluation of the development scenarios proposed at the completion of Phase I, involving four key components: 1. Summarize the results from a survey of citizen preferences on the Phase I scenarios. 2. Produce a series of vignettes to explain the key elements of the different scenarios to the public. 3. Assess the potential market demand for specific office, retail, and other commercial activities discussed in the Phase I scenarios. 4. Convene two ‘virtual’ community discussion sessions to identify town-wide development priorities and possible short-term actions

The relationship between municipal highway expenditures and sociodemographic status: Are safety investments equitably distributed?

Different population groups have varying transportation needs based on their region type, socio‐economic, and socio‐demographic characteristics. Yet, municipal highway funding allocation methods do not typically consider these differences. Throughout the United States, municipal highway funding allocation is based upon fixed formulas that often only account for highway mileage and/or population size rather than equal benefits and funding outcomes across different population groups. This potentially creates an inequitable funding allocation process leading to safety and accessibility disparities between different population groups. This research investigates the extent to which the distribution of resources is not equal when evaluated by population group. Specifically, the relationship between municipal highway expenditures and poverty levels, population aged 65 years and older, race, and remoteness is investigated using data from the states of New York and Massachusetts. Using linear regression techniques, several models were developed that relate municipal highway expenditures with the socio‐economic and socio‐demographic characteristics of municipalities. The results revealed that there are clear municipal highway expenditure disparities between different population groups. Municipalities that have higher poverty levels experience a lower highway expenditure rate per local mile. Further, municipalities located in remote areas far from large metropolitan regions experience a disproportionately lower highway expenditure rate per local mile. Moreover, the results of this study indicate the need to consider how funding methods can address social differences

Entry guidance for abort scenarios

Thesis (M.S.)--Massachusetts Institute of Technology, Dept. of Aeronautics and Astronautics, 1997.Includes bibliographical references (p. 177-178).by Jeffrey D. Barchers.M.S

Molecular analysis of intragenic recombination at the tryptophan synthetase locus in Neurospora crassa

Fifteen different classically generated and mapped mutations at the tryptophan synthetase locus in Neurospora crassa have been characterized to the level of the primary sequence of the gene. This sequence analysis has demonstrated that intragenic recombination is accurate to order mutations within one open reading frame. While classic genetic analysis correctly ordered the mutations, the position of mutations characterized by gene sequence analysis was more accurate. A leaky mutation was found to have a wild-type primary sequence. The presence of unique polymorphisms in the primary sequence of the trp-3 gene from strain 861 confirms that it has a unique history relative to the other strains studied. Most strains that were previously shown to be immunologically nonreactive with antibody preparations raised against tryptophan synthetase protein were shown to have nonsense mutations. This work defines 14 alleles of the N. crassa trp-3 gene.Citation: "Molecular analysis of intragenic recombination at the tryptophan synthetase locus in Neurospora crassa" (December 2013) A. Wiest D. Barchers M. Eaton R. Henderson R. Schnittker K. Mccluskey. Journal of Genetics, Indian Academy of Science. Volume 92 Issue 3. 523-528.Citation: Wiest, A., . . . & McCluskey, K. (2013). Molecular analysis of intragenic recombination at the tryptophan synthetase locus in Neurospora crassa. Journal of Genetics, 92(1), 523–528. https://doi.org/https://doi.org/10.1007/s12041-013-0305-

Detection of phase singularities with a Shack-Hartmann wavefront sensor

While adaptive optical systems are able to remove moderate wavefront distortions in scintillated optical beams, phase singularities that appear in strongly scintillated beams can severely degrade the performance of such an adaptive optical system. Therefore, the detection of these phase singularities is an important aspect of strong scintillation adaptive optics. We investigate the detection of phase singularities with the aid of a Shack-Hartmann wavefront sensor and show that, in spite of some systematical deficiencies inherent to the Shack-Hartmann wavefront sensor, it can be used for the reliable detection of phase singularities, irrespective of their morphologies. We provide full analytical results, together with numerical simulations of the detection process.Comment: 23 pages, 9 figure

Georeferencing the MacConnell Aerial Photo Collection

In the 1950s, Professor William P. MacConnell from the University of Massachusetts Forestry Department began working with his students to map the land cover in Massachusetts via the state’s earliest aerial photography program. These individual photographs are now part of the Special Collections and University Archives at the University of Massachusetts Amherst Libraries, and although they have been digitized and made available online, they have not yet been georeferenced. In Spring 2021, our team (Alex and Matthew) began manually georeferencing the photos in ArcMap 10.8 software onto USGS 2019 color orthoimagery of Massachusetts available from MassGIS. Ideal ground control points include building corners, intersections, and any other distinctive features that have not resulted in much change between the historic and contemporary aerial photos. Some challenges we have faced include varying angles in which the photos were taken, cliffs that offset height in parts of the photo, or photos with a heavily forested area that makes georeferencing difficult to pinpoint ground control points. The goal of the project is to georeference the approximately 4,800 individual photos from the 1951-52 series, which spans the entire state of Massachusetts, in order to make them available to the general public as downloadable GeoTIFFs. This result will allow anyone to access the photos and use them to analyze land-use changes in Massachusetts spanning the last 70 years. Manual georeferencing has come with its own challenges when encountering heavily forested aerial photos or aerial photos dominated by mostly urban areas. We find that future research into the potential automation of the georeferencing process would help alleviate the challenges associated with manual georeferencing