276 research outputs found

    Evaluating a Virtual Reality Simulation-Based Tool in Undergraduate Nursing Students for Impact on Accuracy, Clinical Judgment, Fear, and Self-Confidence when Donning, Doffing, and Disposing of Personal Protective Equipment

    Get PDF
    Background: PPE training is essential to prevent transmission of infections or autoinoculation of infections among healthcare providers and patients. Student nurses play a vital role in infection control practices to protect themselves and patients from transmittable infections. The purpose of this study was to evaluate an innovative teaching and learning strategy known as virtual reality simulation in teaching proper PPE use in comparison to more traditional learning. Research Questions: This study aimed to answer three research questions: (1) What is the acceptability among faculty of using a head mounted VRS to train undergraduate nursing students in the proper donning, doffing, and disposing of PPE compared to standard teaching modalities? (2) What is the feasibility and acceptability among students of using a head mounted VRS in proper donning, doffing, and disposing of PPE? (3) What is the efficacy of using a head mounted VRS for PPE use on the accuracy, clinical judgement, fear, and reported self-confidence among sophomore baccalaureate nursing students compared to standard teaching modalities? Methods: A small group evaluation design with repeated measures was used to evaluate the feasibility, acceptability, and initial efficacy of a newly developed training module. Using head mounted VRS, donning, doffing, and disposing of various types of personal protective equipment (PPE) among 38 undergraduate nursing students at West Virginia University was evaluated. Measures included the Accuracy Checklist, Lasater Clinical Judgement Scoring Sheet for Virtual Patients, Student Satisfaction and Confidence in Learning Scale, and the Fear Affect Fixed Form Ages 18+ v2.0. Data was analyzed in SPSS version 26. Analysis was conducted using chi-square test for independence to analyze differences between groups at each time point and ANOVA to analyze differences between groups over three time points. Results: Analysis of results showed a decrease in fear from time one to time two and an increase in accuracy, self-confidence, and clinical judgement for those using the head mounted VRS over three time points. Conclusions: The study findings indicate that VRS improves accuracy, increases clinical judgement, and increases self-confidence among sophomore undergraduate nursing students. This type of teaching modality is preferred by students and increases knowledge attainment. Future studies should consider a longer amount of time for learning to inquire if this improves accuracy in donning, doffing, and disposing of PPE. Future studies should also consider more in-depth scenarios to assess clinical judgement among undergraduate nursing students

    Do Management Changes Matter? An Empirical Investigation of REIT Performance

    Get PDF
    Management’s (board of directors or executive officers) contribution to a firm is difficult to directly observe, although stock return performance can be a source of information. This study addresses this issue by extending the work of McIntosh, Rogers, Sirmans and Liang (1994) by analyzing management changes within REITs from 1984 to 2002. The findings indicate a significant relationship between negative performance and a management change from a period three months prior to the change in management. Logit and probit analysis are used to determine whether negative firm performance (measured by its relationship to market returns) can predict the likelihood of a management change. No predictive ability is found.

    Agroforests as Model Systems for Tropical Ecology1

    Full text link
    Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/117179/1/ecy2008894913.pd

    PCIe Riser Extension Assembly

    Get PDF
    The PCIe Riser Extension provides geometric flexibility and the capability to expose all PCIe lanes from four processors on a single four socket motherboard to the chassis ends that may be a significant distance away, yet meet the electrical specifications required. The PCIe Riser Extension utilizes standard commercially available connectors and cabling to achieve this task

    Engaging Latino Communities from the Ground Up: Three Tools

    Get PDF
    California\u27s 4-H Youth Development Program has adopted an asset-based community development approach to extending programming with Latino youths and families. This approach entails learning and relationship building with local Latino communities and building on untapped existing resources, such as Latino-serving organizations and networks. Here we present three tools developed to further the effort

    Impacts of major predators on tropical agroforest arthropods: comparisons within and across taxa

    Full text link
    In food web studies, taxonomically unrelated predators are often grouped into trophic levels regardless of their relative importance on prey assemblages, multiple predator effects, or interactions such as omnivory. Ants and birds are important predators likely to differentially shape arthropod assemblages, but no studies have compared their effects on a shared prey base. In two separate studies, we excluded birds and ants from branches of a canopy tree ( Inga micheliana ) in a coffee farm in Mexico for 2 months in the dry and wet seasons of 2002. We investigated changes in arthropod densities with and without predation pressure from (1) birds and (2) ant assemblages dominated by one of two ant species ( Azteca instabilis and Camponotus senex ). We first analyzed individual effects of each predator (birds, Azteca instabilis , and C. senex ) then used a per day effect metric to compare differences in effects across (birds vs ants) and within predator taxa (the two ant species). Individually, birds reduced densities of total and large arthropods and some arthropod orders (e. g., spiders, beetles, roaches) in both seasons. Azteca instabilis did not significantly affect arthropods (total, small, large or specific orders). Camponotus senex , however, tended to remove arthropods (total, small), especially in the dry season, and affected arthropod densities of some orders both positively and negatively. Predators greatly differed in their effects on Inga arthropods (for all, small, large, and individual orders of arthropods) both in sign (±) and magnitudes of effects. Birds had stronger negative effects on arthropods than ants and the two dominant ant species had stronger effects on arthropods in different seasons. Our results show that aggregating taxonomically related and unrelated predators into trophic levels without prior experimental data quantifying the sign and strengths of effects may lead to a misrepresentation of food web interactions.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/47705/1/442_2004_Article_1561.pd

    An efficacy trial of an electronic health record-based strategy to inform patients on safe medication use: The role of written and spoken communication

    Get PDF
    We tested the feasibility and efficacy of an electronic health record (EHR) strategy that automated the delivery of print medication information at the time of prescribing

    Designing a Platform for Ethical Citizen Science: A Case Study of CitSci.org

    Get PDF
    Involving the public in scientific discovery offers opportunities for engagement, learning, participation, and action. Since its launch in 2007, the CitSci.org platform has supported hundreds of community-driven citizen science projects involving thousands of participants who have generated close to a million scientific measurements around the world. Members using CitSci.org follow their curiosities and concerns to develop, lead, or simply participate in research projects. While professional scientists are trained to make ethical determinations related to the collection of, access to, and use of information, citizen scientists and practitioners may be less aware of such issues and more likely to become involved in ethical dilemmas. In this era of big and open data, where data sharing is encouraged and open science is promoted, privacy and openness considerations can often be overlooked. Platforms that support the collection, use, and sharing of data and personal information need to consider their responsibility to protect the rights to and ownership of data, the provision of protection options for data and members, and at the same time provide options for openness. This requires critically considering both intended and unintended consequences of the use of platforms, data, and volunteer information. Here, we use our journey developing CitSci.org to argue that incorporating customization into platforms through flexible design options for project managers shifts the decision-making from top-down to bottom-up and allows project design to be more responsive to goals. To protect both people and data, we developed—and continue to improve—options that support various levels of “open” and “closed” access permissions for data and membership participation. These options support diverse governance styles that are responsive to data uses, traditional and indigenous knowledge sensitivities, intellectual property rights, personally identifiable information concerns, volunteer preferences, and sensitive data protections. We present a typology for citizen science openness choices, their ethical considerations, and strategies that we are actively putting into practice to expand privacy options and governance models based on the unique needs of individual projects using our platform

    Archaeology of the Planned Location of the Toyota Motor Manufacturing Plant, San Antonio, Bexar County, Texas

    Get PDF
    From October 2002 to January 2004, the Center for Archaeological Research (CAR) of The University of Texas at San Antonio conducted archaeological investigations for the City of San Antonio in a 2,570.25-acre project area that is the future site of the San Antonio Toyota Motor Manufacturing Plant. The work was conducted under Texas Antiquities Permit No. 2982 with Dr. Steve A. Tomka, CAR Director, serving as Principal Investigator. The project included the reconnaissance of over 500 acres of the project area, the excavation of 376 shovel tests, 250 mechanical auger borings, and 42 backhoe and Gradall trenches. The backhoe and Gradall trenches were dug for geoarchaeological investigations and in one instance to search for a presumed historic cemetery. Reassessment for National Register of Historic Places and State Archeological Landmark status was conducted for 16 previously documented archaeological sites (41BX125, 41BX349, 41BX652, 41BX653, 41BX654, 41BX655, 41BX656, 41BX657, 41BX658, 41BX659, 41BX660, 41BX661, 41BX662, 41BX676, 41BX681, and 41BX832) and five newly identified sites (41BX1571–41BX1575). Of the 21 sites examined during this project, 12 are prehistoric, seven are historic and two have both prehistoric and historic components. The prehistoric sites are lithic and burned rock scatters, possibly the remnants of campsites. Diagnostic artifacts found in previous surveys indicate Archaic and Late Prehistoric time frames. The historic sites present are farmstead-ranch complexes including residential structures and outbuildings. Also encountered were tenant farmer residences and a small brick kiln. The historic components are primarily late-nineteenth and early-twentieth-century, although original surveys noted early-nineteenth-century artifacts. All artifacts collected are curated at the Center for Archaeological Research laboratory facility

    Birds as predators in tropical agroforestry systems

    Get PDF
    Insectivorous birds reduce arthropod abundances and their damage to plants in some, but not all, studies where predation by birds has been assessed. The variation in bird effects may be due to characteristics such as plant productivity or quality, habitat complexity, and/or species diversity of predator and prey assemblages. Since agroforestry systems vary in such characteristics, these systems provide a good starting point for understanding when and where we can expect predation by birds to be important. We analyze data from bird exclosure studies in forests and agroforestry systems to ask whether birds consistently reduce their arthropod prey base and whether bird predation differs between forests and agroforestry systems. Further, we focus on agroforestry systems to ask whether the magnitude of bird predation (1) differs between canopy trees and understory plants, (2) differs when migratory birds are present or absent, and (3) correlates with bird abundance and diversity. We found that, across all studies, birds reduce all arthropods, herbivores, carnivores, and plant damage. We observed no difference in the magnitude of bird effects between agroforestry systems and forests despite simplified habitat structure and plant diversity in agroforests. Within agroforestry systems, bird reduction of arthropods was greater in the canopy than the crop layer. Top-down effects of bird predation were especially strong during censuses when migratory birds were present in agroforestry systems. Importantly, the diversity of the predator assemblage correlated with the magnitude of predator effects; where the diversity of birds, especially migratory birds, was greater, birds reduced arthropod densities to a greater extent. We outline potential mechanisms for relationships between bird predator, insect prey, and habitat characteristics, and we suggest future studies using tropical agroforests as a model system to further test these areas of ecological theory
    • …
    corecore