Digital Commons Network^™

Just Add Water, Bill Elgersma

Pro Rege

No abstract provided.

Comparison Of Spider Abundance And Diversity In Different Habitats In The Life Monteverde Coffee Farm, December 2016, Kristen Flores

Monteverde Institute: Tropical Ecology and Conservation

Coffee agroecosystems have abundant insect prey, and therefore have the potential to support a high diversity of spiders. In this study, I measured spider diversity in the Life Monteverde low-shade coffee farm located in Cañitas, Guanacaste, Costa Rica. I compared the alpha and beta diversity of an isolated coffee field, a forest-surrounded and more highly shaded coffee field, and a forest patch all located on the farm. At each site, I collected spiders from 12 plots, and later I identified each spider to the family level. In total, I collected 508 individuals of 15 families. Using the true diversity index, …

Effect Of Elevation On The Composition And Eco-Physiological Strategies Of Canopy Epiphytes In A Tropical Montane Cloud Forest, December 2016, Christina Lew

Monteverde Institute: Tropical Ecology and Conservation

Tropical montane cloud forests have a high diversity and abundance of epiphytes that have drought resistance adaptations to the water and nutrient limitations in the canopy. Most epiphytes in the canopy have drought adaptations and may have different distributions along the vertical gradient of a single tree in addition to varying at a landscape scale such as with elevation. Vascular epiphyte composition and eco-physiological strategies were studied along an elevational gradient of 1400-1830m in a cloud forest in Monteverde to see if there is a variation in diversity, abundance, and drought adaptation characteristics. I measured morphospecies diversity, abundance, foliar water …

Coursenetworking And Community: Linking Online Discussion Networks And Course Success, Adrienne L. Traxler, Andrew Gavrin, Rebecca Lindell

Physics Faculty Publications

Large introductory science courses are isolating for many students, and reducing this isolation is an important factor for student retention in college. Active learning courses often build community among students as an explicit goal, but many commuter or non-traditional students have limited on-campus time. Online discussion forums provide one tool for engaging students with each other outside of class time. This study uses social network analysis with forum data from an introductory physics course to examine students' positions in the class discussion network and link it to their final course grades. We find that, contrary to expectations, there is no …

One Small Step: The Impact Of The U.S. Commercial Space Launch Competitiveness Act Of 2015 On The Exploration Of Resources In Outer Space, P.J. Blount, Christian J. Robinson

North Carolina Journal of Law & Technology

No abstract provided.

University Classroom Presentations As Prior Art Disclosures: Are Engineering Capstone Teams Unknowingly Giving Away The Fruits Of Their Labor?, Patricia E. Campbell

North Carolina Journal of Law & Technology

No abstract provided.

Beyond Trade Deals: Charting A Post-Brexit Course For Uk Investment Treaties, Lise Johnson, Lorenzo Cotula

Columbia Center on Sustainable Investment Staff Publications

The Brexit referendum has raised questions about the future terms of the United Kingdom’s engagement with the world economy. While a debate over the UK’s future approach to trade deals has already begun, a similar discussion has yet to develop on the treaties that govern foreign investment. As this briefing note by Lorenzo Cotula of the International Institute for Environment and Development, and Lise Johnson of CCSI highlights, the stakes are high: ill-designed treaties could leave the UK excessively exposed to legal claims by foreign companies and could fail to address relevant economic, social and environmental challenges. While meaningful negotiations …

Can You Get A Ticket? Adaptive Railway Booking Strategies By Customer Value, Jiana-Fu Wang, Ren-Huei Huang

Journal of Public Transportation

This paper integrates a customer segmentation method with a discrete event simulation model to bridge the gap between identifying customer behaviors and using this knowledge to respond to customers and make the best use of resources. Three strategies are proposed and examined to improve the operation efficiency of a ticket-booking system. Their objective is to assist high-value customers in obtaining the tickets they want and/or reduce cancellations and failure-to-pays from low-value customers. Our simulation results demonstrate that the high-value, customer-friendly strategy beats all in assisting high-value customers and simultaneously improves railway operation performance. Additionally, the indirect, low-value customer abandonment strategy …

Innovative Gtfs Data Application For Transit Network Analysis Using A Graph-Oriented Method, Philippe Fortin, Catherine Morency, Martin Trépanier

Journal of Public Transportation

Public transit networks are constantly evolving in the face of frequent economic and social challenges. There exists a large knowledge base on travel demand; however, there is a shortage of information on travel supply and networks. To our knowledge, no analysis tool can, at this point, systematically characterize a network and observe changes over time in a structured and automated manner. This paper addresses this issue and proposes a graph-oriented method for developing an analysis tool that will characterize a single network and then provide the necessary means to compare two distinct networks. A time-expanded model was applied to import …

Applying Ahp And Clustering Approaches For Public Transportation Decisionmaking: A Case Study Of Isfahan City, Alireza Salavati, Hossein Haghshenas, Bahador Ghadirifaraz, Jamshid Laghaei, Ghodrat Eftekhari

Journal of Public Transportation

The main purpose of this paper is to define appropriate criteria for the systematic approach to evaluate and prioritize multiple candidate corridors for public transport investment simultaneously to serve travel demand, regarding supply of current public transportation system and road network conditions of Isfahan, Iran. To optimize resource allocation, policymakers need to identify proper corridors to implement a public transportation system. In fact, the main question is to adopt the best public transportation system for each main corridor of Isfahan. In this regard, 137 questionnaires were completed by experts, directors, and policymakers of Isfahan to identify goals and objectives in …

Assessing Park-And-Ride Efficiency And User Reactions To Parking Management Strategies, Krae E. Stieffenhofer, Michael Barton, Vikash Gayah V.

Journal of Public Transportation

Increasing the number of spaces at overutilized park-and-rides often is not possible due to budgetary and other constraints. Instead, transit agencies may instead seek to maximize the number of people that are able to use the existing spaces through various parking management strategies. Unfortunately, the efficiency of park-and-rides is difficult to measure, so agencies cannot accurately quantify existing use or improvement after parking management strategies have been applied. This study proposed and tested a method to measure the person-efficiency of park-and-ride lots through an onsite audit. Additionally, a user survey was proposed to confirm the audit results and unveil reactions …

Investigation Of Wheeled Mobility Device Orientation And Movement On Streetcars And Light Rail Vehicles During Normal And Emergency Braking, Andrea J. Mather, Katharine M. Hunter-Zaworski

Journal of Public Transportation

Wheeled mobility devices have been accessing public transit vehicles for decades, and most new rail transit systems are accessible. This has increased ridership by people with disabilities. Side-facing orientation on rail transit vehicles often is considered an option to increase capacity for wheeled mobility devices. This paper reports findings of a study of vehicle dynamics and wheeled mobility device orientation on rail transit vehicles. The study used acceleration data and field observations to evaluate wheeled mobility devices in longitudinal and side-facing orientations on streetcar and light rail vehicles. Results from the study include recommendations for longitudinal-oriented areas for wheeled mobility …

Full Issue 19(4)

Journal of Public Transportation

No abstract provided.

Numerical Investigation Of Crossflow Instability On The Hifire-5, Matthew T. Lakebrink

Open Access Dissertations

Stability analysis was performed with the Langley Stability and Transition Analysis Code (LASTRAC) on a 38.1% scale model of the HIFiRE-5 elliptic-cone forebody to study crossflow-induced transition in hypersonic boundary layers. A resolution study consisting of three grids (30e6, 45e6, and 91e6 points) indicated that the fine grid was sufficiently resolved. Results were largely insensitive to grid resolution over the acreage and near the attachment line. The percent variation in second-mode properties along the semi-minor axis was less than 1% between the medium and fine grids. The variation in crossflow-wave properties was less than 0.04% between the medium and fine …

Qos And Trust Prediction Framework For Composed Distributed Systems, Dimuthu Undupitiya Gamage

Open Access Dissertations

The objective of this dissertation is to propose a comprehensive framework to predict the QoS and trust (i.e, the degree of compliance of a service to its specification) values of composed distributed systems created out of existing quality-aware services. We improve the accuracy of the predictions by building context-aware models and validating them with real-life case studies. The context is the set of environmental factors that affect QoS attributes (such as response time and availability), and trust of a service or a composed system. The proposed framework uses available context-QoS dependency information of individual services and information about the interaction …

Species Index To Volume 87, Tennessee Ornithological Society

The Migrant - Tennessee Ornithological Society

No abstract provided.

Random Walks In A Sparse Random Environment, Anastasios Matzavinos, Alexander Roitershtein, Youngsoo Seol

Mathematics and Statistics Faculty Publications

We introduce random walks in a sparse random environment on ℤ and investigate basic asymptotic properties of this model, such as recurrence-transience, asymptotic speed, and limit theorems in both the transient and recurrent regimes. The new model combines features of several existing models of random motion in random media and admits a transparent physical interpretation. More specifically, a random walk in a sparse random environment can be characterized as a “locally strong” perturbation of a simple random walk by a random potential induced by “rare impurities,” which are randomly distributed over the integer lattice. Interestingly, in the critical (recurrent) regime, …

The Proximal Effects Of Acute Alcohol Consumption On Male-To-Female Aggression: A Meta-Analytic Review Of The Experimental Literature, Cory A Crane, Stephanie A Godleski, Sarahmona M Przybyla, Robert C Schlauch, Maria Testa

Psychology Faculty Publications

The current meta-analytic review examined the experimental literature to quantify the causal effect of acute alcohol consumption on self-reported and observed indicators of male-to-female general, sexual, and intimate partner aggression. Database and reference list searches yielded 22 studies conducted between 1981 and 2014 that met all criteria for inclusion and that were subjected to full text coding for analysis. Results detected a significant overall effect (d = .36), indicating that male participants who consumed alcohol evidenced greater aggressive behavior toward females while completing a subsequent laboratory aggression paradigm than male participants who received no alcohol. We found homogeneity across all …

Bridging The Gap: A Workshop To Support Sexual Education Outside Of School, Rachel Lambrecht

Dissertations, Masters Theses, Capstones, and Culminating Projects

Sex education cannot simply provide the “facts” about sex; students must be given the space and support to make connections between the information they receive and their own behaviors. In order to meet the immediate developmental needs of young people I have created a one-­‐day workshop for girls, which is meant to augment current sexual education programming. The aim of the one-­‐day workshop is to bridge the gap between information that girls have received from school programming or parents with the new emotional and physical sensations specific to their developing sexuality, to foster connections with peers, and instill a sense …

Targeting Estrogen Receptor Negative Breast Cancer Cells Using Diarylthiourea Analogs Of Sheta2, Hongye Zou

Dissertations, Masters Theses, Capstones, and Culminating Projects

Abstract will available after document embargo ends.

Connections With The Current Generation Of College Students Using Digital Marketing Practices, Michael Galindo

Dissertations, Masters Theses, Capstones, and Culminating Projects

Higher education professionals in college and university admissions utilize various forms of communication in enrolling their fall class. The problem with the digital generation, also known as the Millennials, is that students have disconnected from the personal touch - the connection that is established between the student, their admissions counselor and the institution. Often it is found that this connection helps prospective students find that perfect fit in selecting a college.

This study identifies several technological approaches and evaluates their effectiveness in undergraduate admissions recruitment. A review of the literature revealed that recent technological advances such as social media, personal …

Uab To Host First Undergraduate Symposium In Art History Dec. 7, Staff

Browse All News

No abstract provided.

Nsa Grant To Help Expand Alabama High School Computer Programming Competition, Staff

Browse All News

No abstract provided.

Uab Staff Council Partnering With Casa For Annual Angel Tree Holiday Present Drive, Uab Heersink School Of Medicine News

Browse All News

No abstract provided.

Jim Mcclintock To Talk About Climate Change, Alabama's Drought And The Antarctic, Staff

Browse All News

No abstract provided.

Lucas Announces Plans To Retire In Spring, Linda Gunter

Browse All News

No abstract provided.

Spectrum Of Acute Flaccid Paralysis In Children, Shaila Ali, M. Zia Ur Rehman, Tipu Sultan

Pakistan Journal of Neurological Sciences (PJNS)

Acute flaccid paralysis (AFP) is a clinical syndrome characterized by rapid onset of weakness in a child aged less than 15 years due to any cause when polio is suspected(1). Exact cause of AFP with its incidence is needed for proper management.

Brief Report On 16th International Neurology Update And Joint Phs, Pss & Mdsp Conference, Abdul Malik

Pakistan Journal of Neurological Sciences (PJNS)

Keeping up to date with new developments in medicine is a real challenge. But it's a challenge all neurologists must take if they are to do justice to their patients and aim for superior clinical expertise. Although neurology specialty is in growing stage & by the Grace of Almighty in last decade neurology bodies showed remarkable development to strengthen and continuing the training & development for the undergraduates, graduates & postgraduates in Pakistan. This year it was also unique precedence that in Karachi, national neurology body jointly organized four days conference with three sub-specialties national organizations.

The New Hampshire, Vol. 106 [107], No. 24 (Dec. 1, 2016), The New Hampshire

The New Hampshire Print Edition

An independent student produced newspaper from the University of New Hampshire. This volume was printed as 106, but it is the 107th volume in the series.

Dilation Behavior Of Thermal Spray Coatings, Miryan Lorena Bejarano

Stony Brook Theses and Dissertations Collection, 2006-2020 (closed to submissions)

Thermal Spray (TS) is a very versatile manufacturing process to deposit thick coatings on a variety of substrates. Coatings are used in protective (i.e. wear, chemical attack, high temperature, etc.) and functional (i.e. sensors) applications. TS coatings have a unique lamellar microstructure as a result of the overlapping of millions of molten and partially-molten particles. During processing, high deformation by impact, high temperature, and rapid solidification lead to a complex hierarchical material system that contains a high amount of microstructural defects. The presence of defects in the microstructure contribute to differences in property values in comparison to bulk materials. Thermal …