Digital Commons Network^™

Measuring Lead Concentrations Of Vacant Lots In The Tree Street Neighborhood Of Lewiston, Me, Adam Gardner, Erin O'Farrell, Julian Cook

Community Engaged Research Reports

High levels of lead contamination have detrimental health implications for communities, with the most profound impacts of lead poisoning affecting young children. The City of Lewiston, Maine, is home to a disproportionate amount of reported lead poisoning cases as compared to the rest of the state. Within Lewiston, the downtown “Tree Street” neighborhood contains 72% of all reported lead-poisoning cases in the city, signifying a need to identify the source(s) of lead exposure and minimize the impact of lead contamination on Tree Street residents. In collaboration with Healthy Neighborhoods, we identified 19 vacant lots in the Tree Street neighborhood to …

An Evaluation Of Unmanned Aerial Systems And Structure-From-Motion For Fluvial Large Wood Sensing And Risk Assessment, Daniel Gerke

Masters Theses

This research aims to show Unmanned Aerial System (UAS) and Structure-from-Motion (SfM) technology can, in combination, improve on traditional large wood (LW) monitoring techniques. More temporally and economically efficient data collected at a finer spatial resolution and greater spatial extent will increase the effectiveness of management plans and risk assessment for LW by providing decision-makers with a complete picture of the river.

Contemporary practices are too inefficient in time and labor for large-scale monitoring of fluvial LW with anything more than the most general management or risk assessment in mind. The paradigm of river research, the river continuum concept (RCC), …

Montclair Magazine (Fall/Winter 2019), Montclair State University

Montclair: The magazine of Montclair State University

No abstract provided.

Trajectory Optimization And Design For A Large Number Of Unmanned Aerial Vehicles, Jenna Elisabeth Newcomb

Theses and Dissertations

An unmanned aerial vehicle (UAV) swarm allows for a more time-efficient method of searching a specified area than a single UAV or piloted plane. There are a variety of factors that affect how well an area is surveyed. We specifically analyzed the effect both vehicle properties and communication had on the swarm search performance. We used non-dimensionalization so the results can be applied to any domain size with any type of vehicle. We found that endurance was the most important factor. Vehicles with good endurance sensed approximately 90% to 100% of the grid, even when other properties were lacking. If …

Climate Change And Big Business: The Endless Cycle, Angela Steele

Capstone Projects and Master's Theses

Climate change, as it stands, is a large topic. As it relates to business, it grows exponentially, yet relates to every single one of us. Before the nineteenth century, climate cycles were mostly naturally occurring. Unfortunately, in recent years anthropogenic (human) causes have been introduced. The largest problem is carbon dioxide, which is produced from numerous human activities but largely from the burning of fossil fuels, and leads to massive warming effects on our planet. That’s where business comes in: companies, such as those within the agriculture, fossil fuel, and sunscreen industries, seek multi-million dollar profits off of the warming …

6th Annual Sustainability Report, Saint Mary's College Of California

Sustainability Report

Highlights from the past year include reviving the Sustainability Living Learning Community in South Claeys (formerly called the “Green LLC”) with double the anticipated enrollment, representing Saint Mary's at Al Gore's Climate Reality Leadership Training in Minneapolis, and launching several new paid Sustainability Student Leadership positions.

Unlocking Pre-1850 Instrumental Meteorological Records: A Global Inventory, Stefan Bronnimann, Rob Allan, Linden Ashcroft, Saba Baer, Mariano Barriendos, Fiona Williamson, Et Al

Research Collection School of Social Sciences

A global inventory of early instrumental meteorological measurements is compiled. It comprises thousands of series, many of which have not been digitized, pointing to the potential of weather data rescue.Instrumental meteorological measurements from periods prior to the start of national weather services are designated “early instrumental data”. They have played an important role in climate research as they allow daily-to-decadal variability and changes of temperature, pressure, and precipitation, including extremes, to be addressed. Early instrumental data can also help place 21st century climatic changes into a historical context such as to define pre-industrial climate and its variability. Until recently, the …

Conspiracy Theories And The Quest For Truth, Rachel Runnels

Electronic Theses and Dissertations

Conspiracy theories are deeply embedded in American culture, especially in current American society. The popularity of conspiracy theories in general reveals that society is becoming increasingly skeptical of authoritative organizations. Because of “fake news” and the availability of information and connection on the internet, people feel as though they must question everything, even sources they previously viewed as unquestionable authorities.

My analysis looks at how online conspiracy organizations create and defend their arguments in an attempt to understand why conspiracy theories are so persuasive. I analyze the rhetoric of three online conspiracy theory organizations: the Flat Earth Society, the Mutual …

The Effects Of Urban Development And The Incidence Of Flooding And Discharge Changes From 1956-2016: A Case Study From Juan Diaz Township, Republic Of Panama, Virgilio De Jesus Quintero Rodriguez

Graduate Theses and Dissertations

The increase in flood occurrences in the Township of Juan Diaz has affected thousands of families and hundreds of businesses and has negatively impacted the lives of thousands of residents, who expect the worse every time there is a prolonged period of rain. Some of the residents lose their appliances, cars, furniture and houses every year. This study examines the relationship between urban development and flooding. Also, it addresses the influences of topography, green cover, population changes, runoff changes, and social dynamics on this relationship. This study implemented the use of thematic cartography, geographic information systems (GIS), personal interviews and …

Building Skills For And Implementing Course Based Undergraduate Research Experiences (Cures) Across An Environmental Studies Curriculum, Alanna L. Lecher, Cassandra S. Korte

Faculty and Staff Publications & Presentations

No abstract provided.

Here A Spaceport, There A Spaceport, Everywhere A Spaceport?, Michelle L. D. Hanlon

Journal of Space Law

No abstract provided.

The Farm As Place In A Changing Climate: Capturing Women Farmers' Experiences In Idaho, United States And Victoria, Australia, Tagen Towsley Baker

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

In Australia and the US, women play a vital role in the agricultural sector. However, historically farmwomen’s contributions to agriculture as well as their individual knowledge and social resilience to stressors like climate and climate change have been unrecognized and rendered invisible. Drawing on interdisciplinary scholarship from geography and the humanities, this dissertation explores the farm as place in a changing climate, drawing on women farmers’ experiences, under three distinct themes: identity, place, and photography. The dissertation research includes three distinct parts. First, incorporating non-fiction writing and photography, I explore my agricultural and religious heritage, as well as familial connections …

Current And Historic Visitor Experiences In Coastal Alaskan Wilderness: Visitor Motivations And Experience Quality In Glacier Bay National Park & Preserve, Gabriella R. Furr

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Visitors to parks and protected areas (PPAs) engage in a variety of activities and choose different modes of travel, especially when the location itself has few limitations, such as open-water settings with relatively few backcountry visitors. Managers must understand why visitors are recreating in a particular place and the quality of their experiences in order to offer appropriate and meaningful opportunities. This study seeks to better understand visitor motivations (the “why”), to develop and measure effective indicators for evaluating the quality of visitor experiences, and to contextualize these findings with a unique investigation of historical Glacier Bay National Park data. …

Finding The Time: Age-Depth Models In Rockshelters And Their Paleoenvironmental Implications, Caleb E. Ferbrache

All Graduate Theses and Dissertations, Spring 1920 to Summer 2023

Rockshelters are capable of preserving excellent environmental records within their sediments. But the matter of interpreting an environmental record from rockshelter sediments presents a significant hurdle in the form of dating. An “age-depth model” is typically used to estimate the age of environmental information extending through the deposit. An age-depth model calculates the changes in time between direct ages (like a radiocarbon age) and can provide an estimated age for any depth. While radiocarbon dating can provide an age for organic remains, optically stimulated luminescence (OSL) can provide a direct age on quartz sand deposition and is particularly effective when …

Dark Carbon Fixation In The Arabian Sea Oxygen Minimum Zone Contributes To Sedimentary Organic Carbon (Som), Sk Lengger, D Rush, Jp Mayser, J Blewett, Et Al

School of Geography, Earth and Environmental Sciences

In response to rising CO2 concentrations and increasing global sea surface temperatures, oxygen minimum zones (OMZ), or “dead zones”, are expected to expand. OMZs are fueled by high primary productivity, resulting in enhanced biological oxygen demand at depth, subsequent oxygen depletion, and attenuation of remineralization. This results in the deposition of organic carbon-rich sediments. Carbon drawdown is estimated by biogeochemical models; however, a major process is ignored: carbon fixation in the mid- and lower water column. Here, we show that chemoautotrophic carbon fixation is important in the Arabian Sea OMZ; and manifests in a 13C-depleted signature of sedimentary organic carbon. …

Method For Identifying And Estimating Karst Groundwater Runoff Components Based On The Frequency Distributions Of Conductivity And Discharge, Zejun Wang, Qianlong Chen, Ziqi Yan, Mingming Luo, Hong Zhou, Wei Liu

KIP Articles

Identification and estimation of groundwater runoff components in karst groundwater systems to improve understanding of karst water circulation and water-rock interactions is essential for water resources assessment and development. A Gaussian mixture model is presented for identifying and estimating karst groundwater runoff components based on the frequency distributions of conductivity and discharge. Successful application of this method in the Heilongquan karst spring in South China showed that groundwater runoff components can be divided into 6–8 grades, corresponding to the grades of groundwater in karst fissures. The conductivity and discharge thresholds dividing fast and slow flow were determined to be approximately …

Material And Seismic Assessment Of The Great House At Casa Grande Ruins National Monument, Arizona, Douglas W. Porter, Anjali Mehrotra, Matthew J. Dejong, Angelyn Bass, Matthew Guebard, John Ochsendorf

United States National Park Service: Publications

The authors characterized earthen wall materials and plasters in a mid-fourteenth-century Hohokam great house at Casa Grande Ruins National Monument (Arizona) and assessed the seismic susceptibility of its puddled earth walls. Characterization included determining the microstructure, microcomposition, porosity, aggregate mineralogy, and identification of phases in the binding matrix for each of 36 samples and reconstructing plaster technologies, including material selection, preparation, and application sequences. Findings support the ideas that earthen materials were manipulated to optimize their performance to suit the unique site conditions and needs of the ancient people using the structure and included finishes that were unusual in southwestern …

Mapping Seafloor Relative Reflectance And Assessing Coral Reef Morphology With Eaarl-B Topobathymetric Lidar Waveforms, Nicholas Wilson, Christopher E. Parrish, Tim Battista, C. Wayne Wright, Bryan Costa, Richard K. Slocum, Jennifer A. Dijkstra, Matthew T. Tyler

Center for Coastal and Ocean Mapping

Topobathymetric lidar is becoming an increasingly valuable tool for benthic habitat mapping, enabling safe, efficient data acquisition over coral reefs and other fragile ecosystems. In 2014, a novel topobathymetric lidar system, the Experimental Advanced Airborne Research Lidar-B (EAARL-B), was used to acquire data in priority habitat areas in the U.S. Virgin Islands (USVI), spanning the 0–44-m depth range. In this study, new algorithms and procedures were developed for generating seafloor relative reflectance, along with a suite of shape-based waveform features from EAARL-B. Waveform features were then correlated with percent cover of coral morphologies, domed and branched, and total cover of …

Collaborating Across Campus To Advance Open Access Policy Compliance, Andrew Johnson, Melissa Cantrell, Ryan Caillet

Collaborative Librarianship

In 2018, the Data and Scholarly Communication Services Unit (DSCS) at the University of Colorado Boulder began implementing two open access (OA) policy workflows with the aim of increasing content in the institutional repository CU Scholar, expanding awareness of the campus OA policy that was passed in 2015, and decreasing the burden on researchers for participation in the policy. DSCS leveraged collaborative relationships with other library departments and campus units in order to mobilize the data, infrastructure, procedures, and documentation to execute these workflows. The Directory of Open Access Journals (DOAJ) workflow identifies existing open access publications by CU Boulder …

Big “G” And Small “G”: The Variable Geometries Of Educational Governance In An Era Of Big Data, Tavis Jules

Education: School of Education Faculty Publications and Other Works

With the advent of the fourth industrial revolution and the intelligent economy, this conceptual chapter explores the evolution of educational governance from one based on governing by numbers and evidence-based governance to one constituted around governance by data or data-based educational governance. With the rise of markets and networks in education, Big Data, machine data, high-dimension data, open data, and dark data have consequences for the governance of national educational systems. In doing so, it draws attention to the rise of the algorithmization and computerization of educational policy-making. The author uses the concept of “blitzscaling”, aided by the conceptual framing …

Scientometric Analysis Of Pollution Control Research Publications In Indian From Scopus Database Between 2007 And 2018, Vivekanandhan S Dr, Rajendran Periyasamy Dr, Sivasamy K Dr

Library Philosophy and Practice (e-journal)

This paper aims to analyze the pollution control research publications by the Indian contributions from the scopus online database between 2007 and 2018 with 33084 research publications. Out of that, 1997 publications are contributed by India. This study examine the year wise growth of research publications, relative growth rate and doubling time, bibliographic form of publications, top 10 country wise contributions and authorship pattern. During the study period, maximum of 226(0.68%) publications are contributed in the year 2018. Activity index ranges between 79.89 and 121.86 during the study period. The relative growth rate is found that, 0.61 to 0.12 between …

Forests And Mental Health In South Africa: Panel Data Evidence, Dambala Gelo

Forest Collaborative Research

Slides from a presentation that examines the linkages between the green environment (urban forests, green open urban space) and mental health in South Africa. The author used representative panel data from the National Income Dynamics Survey, including the Center for Epidemiological Studies Short Depression Scale, to uncover these links.

Concept Note: Mexico, Danae Hernandez, Alejandro López-Feldman, Fernanda Márquez-Padilla

Forest Collaborative Research

Slides from a presentation that explores the connections between forest cover and deforestation on human health. The authors analyze medical records from the Mexican National Social Security Institute (IMSS) to determine the extent to which health outcomes are related to proximity to forests or deforested areas.

Exposure And Potential Effects Of Pesticides And Pharmaceuticals In Protected Streams Of The Us National Park Service Southeast Region, Paul M. Bradley, Kristin M. Romanok, Jeffrey R. Duncan, William A. Battaglin, Jimmy M. Clark, Michelle L. Hladik, Bradley J. Huffman, Luke R. Iwanowicz, Celeste A. Journey, Kelly L. Smalling

United States National Park Service: Publications

Globally, protected areas offer refugia for a broad range of taxa including threatened and endangered species. In the United States (US), the National Park Service (NPS) manages public lands to preserve biodiversity, but increasing park visitation and development of surrounding landscapes increase exposure to and effects from bioactive contaminants. The risk (exposure and hazard) to NPS protected-stream ecosystems within the highly urbanized southeast region (SER) from bioactive contaminants was assessed in five systems based on 334 pesticide and pharmaceutical analytes in water and 119 pesticides in sediment. Contaminant mixtures were common across all sampled systems, with approximately 24% of the …

Economics Of Afforestation: A Global Leadership Opportunity For Efd, Jeffrey R. Vincent

Forest Collaborative Research

Slides from a presentation that examines the economics of afforestation and forest restoration in light of climatic changes, rising CO₂ levels, carbon sequestration and other factors. Provides directions for further research, including retrospective analysis of previous afforestation projects, and targeted analysis of impediments to institutional investment in afforestation.

Building Skills For And Implementing Course Based Undergraduate Research Experiences (Cures) Across An Environmental Studies Curriculum, Alanna L. Lecher, Cassandra S. Korte

Faculty and Staff Publications & Presentations

Course Based Undergraduate Research Experiences (CUREs) are an effective method of teaching students not only content, but also critical thinking, scientific practice, and other skills beneficial to their education and success. They lower the barrier to participation in undergraduate research, thereby increasing access to entry. Thus, CUREs are especially valuable to under-performing students as they are an effective means of bridging the achievement gap. Due to the value and effectiveness of CUREs in student development, Lynn University has implemented a means by which students are exposed to CUREs and skills necessary to complete a CURE throughout the Environmental Studies major …

The Firece Green Fire: Vol. 10 Issue 11, Wofford College Environmental Studies Program

The Fierce Green Fire

No abstract provided.

Provost Undergraduate Research Fund Provides $31,160 In Funding To 24 Students (November 21, 2019), University Communications And Marketing

OHIO News Articles Archive

No abstract provided.

The Colby Echo (2019-11-21), Colby College

The Colby Echo

Published by the students of Colby College since 1877, The Colby Echo is the weekly, editorially independent student-run newspaper of Colby College in Waterville, Maine. Published monthly, 1877-1886; semi-monthly, 1886-1897; and weekly, during the academic year, 1898-present.

Renegotiating Gender Roles And Cultivation Practices In The Nepali Mid-Hills: Unpacking The Feminization Of Agriculture, Kaitlyn Spangler, Maria Elsia Christie

Environment and Society Student Research

The feminization of agriculture narrative has been reproduced in development literature as an oversimplified metric of empowerment through changes in women’s labor and managerial roles with little attention to individuals’ heterogeneous livelihoods. Grounded in feminist political ecology (FPE), we sought to critically understand how labor and managerial feminization interact with changing agricultural practices. Working with a local NGO as part of an international, donor-funded research-for-development project, we conducted semi-structured interviews, focus group discussions, and participant observation with over 100 farmers in Mid-Western Nepal in 2017. Household structure and headship are dynamic in the context of male out-migration, pushing women to …