206 research outputs found

    Extracorporeal life support in pediatric trauma: a systematic review

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    Introduction Extracorporeal membrane oxygenation (ECMO) was once thought to be contraindicated in trauma patients, however ECMO is now used in adult patients with post-traumatic acute respiratory distress syndrome (ARDS) and multisystem trauma. Despite acceptance as a therapy for the severely injured adult, there is a paucity of evidence supporting ECMO use in pediatric trauma patients. Methods An electronic literature search of PubMed, MEDLINE, and the Cochrane Database of Collected Reviews from 1972 to 2018 was performed. Included studies reported on ECMO use after trauma in patients ≤18 years of age and reported outcome data. The Institute of Health Economics quality appraisal tool for case series was used to assess study quality. Results From 745 studies, four met inclusion criteria, reporting on 58 pediatric trauma patients. The age range was <1–18 years. Overall study quality was poor with only a single article of adequate quality. Twenty-nine percent of patients were cannulated at adult centers, the remaining at pediatric centers. Ninety-one percent were cannulated for ARDS and the remaining for cardiovascular collapse. Overall 60% of patients survived and the survival rate ranged from 50% to 100%. Seventy-seven percent underwent venoarterial cannulation and the remaining underwent veno-venous cannulation. Conclusion ECMO may be a therapeutic option in critically ill pediatric trauma patients. Consideration should be made for the expansion of ECMO utilization in pediatric trauma patients including its application for pediatric patients at adult trauma centers with ECMO capabilities

    Lunar Wormbot: Design and Development of a Ground Base Robotic Tunneling Worm for Operation in Harsh Environments

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    From 1969 to 1972, the National Aeronautics and Space Administration (NASA) sent Apollo missions to the moon to conduct various exploration experiment. A few of the missions were directed to the study and sampling of moon soil, otherwise known as lunar regolith. The extent of the sample acquisition was limited due to the astronauts' limited ability to penetrate the moon's surface to a depth greater than three meters. However. the samples obtained were sufficient enough to provide key information pertaining to lunar regolith material properties that would further assist in future exploration endeavors. Analysis of the collected samples showed that the properties of lunar regolith may lead to knowledge of processed materials that will be beneficial for future human exploration or colonization. However, almost 40 years after the last Apollo mission, limited infonnation is known about regions underneath the moon's surface. Future lunar missions will require hardware that possesses the ability to burrow to greater depths in order to collect samples for subsequent analysis. During the summer of 2010, a team (Dr. Jessica Gaskin, Michael Kuhlman. Blaze Sanders, and Lafe Zabowski) from the NASA Robotics Academy at Marshall Space Flight Center (MSFC) was given the task of designing a robot to function as a soil collection and analysis device. Working with the National Space Science and Technology Center (NSSTC), the team was able to propose an initial design, build a prototype, and test the various subsystems of the prototype to be known as the "Lunar Wormbot" (LW). The NASA/NSSTC team then transferred the project to a University of Alabama in Huntsville (UAH) Mechanical and Aerospace Engineering (MAE) senior design class for further development. The UAH team was to utilize the NASA Systems Engineering Engine Design Process in the continuance of the Lunar Wormbot project. This process was implemented in order to coordinate the efforts of the team and guide the design of the project to ensure a high quality product that met requirements within the academic year timeframe. When the transition from the NASA NSSTC team to the UAH team occurred in August 2010, the scope and requirements were provided to the UAH team. The main objective for the UAH team was to design and fabricate a robotic burrowing prototype using peristaltic or earthworm-like motion with the purpose of collecting soil samples. The team was tasked with the design of a sub-system of the LW called the locomotive, or active, segment. Through the design process, the team extensively reviewed the requirements and functions to be performed of the LW, which led to the proposal of a final design. The present paper provides the details of the development of the design up to and including the Critical Design Review (CDR) of the Lunar Wormbot. This document briefly describes thc overall system and its function but primarily focuses on the design and implementation of the locomotive segment. Content presented includes: general design and system functionality, technical drawings, system analysis, manufacturing methods, and general project costs

    Durrington Walls to West Amesbury by way of Stonehenge: a major transformation of the Holocene landscape

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    A new sequence of Holocene landscape change has been discovered through an investigation of sediment sequences, palaeosols, pollen and molluscan data discovered during the Stonehenge Riverside Project. The early post-glacial vegetational succession in the Avon valley at Durrington Walls was apparently slow and partial, with intermittent woodland modification and the opening-up of this landscape in the later Mesolithic and earlier Neolithic, though a strong element of pine lingered into the third millennium BC. There appears to have been a major hiatus around 2900 cal BC, coincident with the beginnings of demonstrable human activities at Durrington Walls, but slightly after activity started at Stonehenge. This was reflected in episodic increases in channel sedimentation and tree and shrub clearance, leading to a more open downland, with greater indications of anthropogenic activity, and an increasingly wet floodplain with sedges and alder along the river’s edge. Nonetheless, a localized woodland cover remained in the vicinity of DurringtonWalls throughout the third and second millennia BC, perhaps on the higher parts of the downs, while stable grassland, with rendzina soils, predominated on the downland slopes, and alder–hazel carr woodland and sedges continued to fringe the wet floodplain. This evidence is strongly indicative of a stable and managed landscape in Neolithic and Bronze Age times. It is not until c 800–500 cal BC that this landscape was completely cleared, except for the marshy-sedge fringe of the floodplain, and that colluvial sedimentation began in earnest associated with increased arable agriculture, a situation that continued through Roman and historic times

    The Lantern Vol. 76, No. 2, Spring 2009

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    • Coffee and Morning • Charlie Brown Testifies at the Trial of Westley Allan Dodd, Convicted Child Killer • In a Women\u27s Bathroom • The Naming • An Urban Nightmare • In the Yellow Kitchen • City Streets • Engineering • Walter Bixby Walks Through Hunsberger Woods • Sing a Happy Tune • Apology • Will You Wear a Helmet?! • Molly Can\u27t Answer the Phone • Marked Man • He\u27s Under a Lot of Pressure • Ne Me Quitte Pas • Last Night • All of Our Second Hand Books are Lightly Wornhttps://digitalcommons.ursinus.edu/lantern/1174/thumbnail.jp

    Racial Justice in Housing Finance: A Series on New Directions

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    The enclosed essays speak from a range of diverse viewpoints to explore how housing finance can be harnessed towards the ends of residential integration, equitable investment, and housing security, rather than purely for profit. Our authors offer ideas across a spectrum of proposed reforms. They describe how aspects of our current housing finance system derive from, or fail to correct for, our deep history of structural racism; they propose concrete steps toward re-engineering our current regulatory structure and housing programs to better advance equity, including addressing the particular harms of racial segregation; and they argue for expanded social housing and other visionary reforms

    The Lantern, 2009-2010

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    • I\u27m Pregnant. It\u27s Yours • The Nightmare • What Death Became After Cyparissus • Substances • Ain\u27t That a Man? • Portrait • The 100th Chemo • Looking into Her Toy Box with a Lover • They Used to Talk About Burning Cities • MESSAGE: Absence for Allen Ginsberg • Lunch with Candide • Behold! Man of Unbelief! Behold! • Dream #1 Final Strophe • Patience (Things You Will Discover) • Four Years • He Falls Like Leaves • The Quilt • Ariel (Turning Tricks at Fisherman\u27s Wharf, Monterey, California) • Extranjera • The Taste of Morning • Fear of Glory • The Rum Bottle\u27s Fortune • While Thinking of What to Write • Dying in Spring • Tutte le Eta di Firenze • Token • A House Grows Into Itself • Gravity • Father with the Skyy • He Says He Dreams of Me • Myth • Sun-Veins and Wishbones • Attempts at Bravery • One Boy in Four Parts • Blacktop Rollin\u27 • Getting My Feet Wet • The Long Ride After Ending • Wet Tongues and Sweaty Cotton • Norman Bates is My Mother • Sims Trek • Tomorrow Comes Today • The Writer\u27s Process • This Too Was Real • Venus from the Waves • Shark • Monday\u27s Expectations • Recognition • The Black Shoes • Climax • Andrew • Bottles • Calle de Cusco • God in the Machine • The 26th of December • Lollipop Lollipop • When Dinosaurs Roamed the Earth • Meaning • Jeffrey • Looking • Jagged Edges • Fading Storm • Shoes • Cover Image: Death by Chocolatehttps://digitalcommons.ursinus.edu/lantern/1175/thumbnail.jp
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