259890 research outputs found
Sort by
Using Disaggregate Vehicle Data to Investigate How Ride-Hailing Services Influence Personal Vehicle Use Across a Metropolitan Region
No full textApp-based ride-hailing has become a popular form of urban transportation. Previous research suggests that it may in some cases enable lower reliance on private vehicles, but that it is also associated with increases in congestion and vehicle miles traveled (VMT). We examined how the introduction of the Uber ride-hailing service in the Boston area related to changes in the average daily VMT of individual vehicles. This research is unique because it focuses on the use patterns of individual automobiles instead of relying on aggregate measures of auto use, or estimates based on surveys, as done in previous research. Using data sourced from vehicle registrations and odometer readings collected during state-mandated annual inspections, we tracked changes to the average daily VMT of 1,668,215 vehicles over five years as Uber launched in the Boston area. We applied fixed-effects panel regression methods to model the relationship between Uber availability, VMT, and transit access. We also examined vehicle turnover and ownership at the Census Tract level to investigate if neighborhood change may have influenced observed changes in daily VMT. In contrast to previous studies finding associations between ride-hailing and large increases in VMT, we found that Uber availability was not related to changes in VMT in the cities of Boston and Cambridge and was significantly related to only marginally higher average daily VMT outside those core cities (0.6% increase from the mean VMT). We also found slightly lower rates of vehicle turnover and ownership in areas outside of Boston and Cambridge after Uber availability. These results suggest that ride-hailing’s influence on VMT is likely smaller than indicated in other research, limited to vehicles registered outside MPO cores, and is likely not related to neighborhood change
Cave minerals of the 21st century: A 2025 review and update
No full textThis 2025 update lists 54 newly identified minerals from cave environments, expanding the global total to 364 species. The majority of these discoveries have been made in volcanic caves and lava tubes, with a smaller number found in ice-hosted caves. The newly identified minerals belong to seven chemical classes, with sulfates being the most prominent. Recent advancements in analytical techniques and growing interest in unique cave environments have driven these discoveries. This update highlights the importance of cave mineralogy in understanding geological and astrobiological processes, particularly in the search for biosignatures and terrestrial analogues for subsurface settings on Mars and the Moon. The cave minerals of the world list provide a comprehensive reference for researchers, following international mineralogical guidelines and standardized nomenclature
Web Mapping Basics with ArcGIS Online, 2025
No full textSlides for a web mapping workshop given virtually by Benjamin Mittler, GIS Manager at the University of South Florida Libraries
Intro to ArcGIS StoryMaps, 2025
No full textSlides for a StoryMaps workshop given virtually by Benjamin Mittler, GIS Manager at the University of South Florida Libraries
Frameworks for Measuring Regenerative Tourism: Supply and Demand Indicators with a Dynamic and Holistic Approach
No full textThis paper examines regenerative tourism as a holistic approach that goes beyond sustainability by actively restoring and enhancing social-ecological systems. Recognizing tourism’s interconnectedness with economic, social, cultural, and environmental systems, it presents regenerative tourism as a dynamic model integrating supply and demand perspectives to promote innovation, resilience, and renewal. On the supply side, regenerative tourism emphasizes ecological restoration, sustainable practices, economic stability with minimal environmental harm, and authentic experiences. On the demand side, it aligns with the rising preference for ethical, participatory, and immersive tourism, involving tourists as active contributors to destination well-being. The paper highlights the importance of multidimensional indicators, such as ecological health, community well-being, and cultural integrity, to evaluate tourism’s impacts. By adopting regenerative tourism, destinations can prioritize long-term socio-ecological benefits, offer ethical and authentic experiences, and support resilient communities while fostering continuous rejuvenation of people and places
Round Table (Part 4) Book Review: \u3cem\u3eFrom Discrimination to Death: Genocide Process Through a Human Rights Lens\u3c/em\u3e
No full textArts & Literature: Orizaba, The Magical Town: A Scholar’s Experience with a Mothers’ Search Collective in Mexico
No full textThe crisis of forced disappearances in Mexico reaches thousands of regular citizens in every aspect of their lives. Beyond studying the mechanics of the phenomenon: the formation of search collectives, and state-citizenship interactions, the experience of being a witness of a mass graves search provides crucial details on the micro-dynamics of collaboration essential to understanding the attempt and/or the beginning of a personal and societal healing process
Plan for Downtown Tampa\u27s Franklin St Mall
No full textA plan for downtown Tampa\u27s Franklin Street Mall in front of the First Federal Savings and Loan Association building in downtown Tampa. The plan contains renderings of Kennedy to Madison, Madison to Twiggs, Twiggs to Zack, Zach to Polk, and Polk to Cass .https://digitalcommons.usf.edu/gandy_street/3630/thumbnail.jp
GNSI Decision Brief: The United States Military Recruiting Crisis
No full textRecent news stories reported that the U.S. military is currently experiencing an unprecedented recruiting crisis. In fact, between 2022-2023, the U.S. armed forces (the Army in particular) failed to meet their numbers by a large margin: against goals of 232,021 accessions for 2022 and 244,533 for 2023, the branches collectively missed their targets by 40,369 and 41,336 accessions respectively. Even though the branches proved able to meet their recruitment goals – although barely – in fiscal year 2024, concerns continue to linger.
Although military recruitment is usually not a significant issue for voters, it became a central promise for the new Trump administration. Secretary of Defense Pete Hegseth is following through with his promise to take action, beginning with policy changes related to diversity initiatives in the military, which he argues have dampened recruitment enthusiasm.https://digitalcommons.usf.edu/gnsi_decision_briefs/1022/thumbnail.jp