Digital Commons Network^™

Reconstructability Analysis Of The Predictors Of Physical Functioning Status In Older Americans By Race And Ethnicity, Amanuel Melekin, Martin Zwick

Complex Systems Faculty Publications and Presentations

This paper demonstrates the use of reconstructability analysis to examine race/ethnic differences in physical functioning status among older Americans. Reconstructability analysis is an information theory and graph theory method which has been successfully used in multivariate data modeling. The health and retirement study data from 2004 are used for this demonstration. Out of eighteen independent variables included, seven variables appeared in the best models selected. Uncertainty reductions in physical functioning status were substantial across the models but the magnitudes and predictive variables varied slightly by race/ethnicity. Examination of the model probability distributions indicated that composite independent variable states of overlapping …

Data Files: Bi-Objective Optimization For Battery Electric Bus Deployment Considering Cost And Environmental Equity, Xiaoyue Cathy Liu, Yirong Zhou, Ran Wei, Aaron Golub

TREC Datasets and Databases

This data supports the research project Bi-objective Optimization for Battery Electric Bus Deployment Considering Cost and Environmental Equity and a final report published on NITC’s website.

Dataset collected through multiple sources and organized into different formats including CSV format, JSON format, shapefile and code repository.

Context: The research project develops a bi-objective model that aims to help transit agencies to optimally deploy BEB while considering both capital investment and environmental equity. The unique spatio-temporal characteristic of BEB system, charging limitations (on-route and in-depot charging), and operational constraints are also considered and incorporated into the model.

Pdxscholar Annual Report 2020, Karen Bjork, Sherry Buchanan, David Coate, Bertrand Robinson, Stacey Schlatter

Library Faculty and Staff Publications and Presentations

This report details the tenth year of operation for PDXScholar, Portland State University's institutional repository. The report covers the period between January 1, 2020 and December 31, 2020.

The 2020 report highlights the exponential growth of PDXScholar with almost 2.1 million (2,094,796) full text downloads. This is an increase of approximately 800,000 downloads from 2019, representing a 62% increase.

The report also focuses on our work to bring online new collections and to highlight research impacting our communities, academics, and personal lives.

Beyond “No”: Best Practices For Responding To Resource Requests, Kerry Wu

Library Faculty and Staff Publications and Presentations

At a recent BRASS Virtual Discussion, business librarians commiserated over the shared frustration of having to say “no” regularly to resource requests (RUSA_BRASS, n.d.). As a midcareer business librarian, I still feel the discomfort after having said “no” numerous times. In this article, I will share some of the practices I have found helpful in responding to requests from business faculty for new databases or journals, especially when I have to say “no” without burning bridges.

Circular Economy: Waste-To-Wealth, Jobs The Global South, Katie Conlon, Randika Jayasinghe, Ranahansa Dasanayake

Urban Studies and Planning Faculty Publications and Presentations

Circular Economy [CE] is predominantly framed as a means for circulating material streams within the technosphere as economically as possible, for as long as possible, in both applications of theory and practice. Arising from requirements for regulatory compliance, some global north industries have ventured into CE, and now this model is making headway in all industrial sectors. Whereas, in the global south, CE has been conceptualized as a mechanism for keeping materials out of the waste streams otherwise destined to reach landfills, waterways etc. Characteristic haphazard waste management is a serious socio-environmental issue in Sri Lanka. As a result, CE …