31 research outputs found

    A Rash Decision. The Hazards of the Wrongful Use of Adrenaline

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    Anaphylaxis is life-threatening and should be addressed urgently. Its treatment is not without side effects and an accurate diagnosis must be made to prevent potential harm by the wrongful use of medication. A 46-year-old woman with hypertension treated with angiotensin converting enzyme inhibitor (ACEI) presented to the emergency department with non-pitting oedema of the face and limbs. A hasty diagnosis of anaphylaxis was made and intravenous adrenaline administered. The patient developed a myocardial infarction caused by coronary artery spasm that required invasive intervention. The initial clinical picture was resolved when the ACEI was discontinued unmasking a case of ACEI-induced angioedema. The correct differentiation of these two apparently similar clinical entities is of utmost importance in the management of emergency department patients.info:eu-repo/semantics/publishedVersio

    Toward Robust Sensing for Autonomous Vehicles: An Adversarial Perspective

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    Autonomous Vehicles rely on accurate and robust sensor observations for safety critical decision-making in a variety of conditions. Fundamental building blocks of such systems are sensors and classifiers that process ultrasound, RADAR, GPS, LiDAR and camera signals~\cite{Khan2018}. It is of primary importance that the resulting decisions are robust to perturbations, which can take the form of different types of nuisances and data transformations, and can even be adversarial perturbations (APs). Adversarial perturbations are purposefully crafted alterations of the environment or of the sensory measurements, with the objective of attacking and defeating the autonomous systems. A careful evaluation of the vulnerabilities of their sensing system(s) is necessary in order to build and deploy safer systems in the fast-evolving domain of AVs. To this end, we survey the emerging field of sensing in adversarial settings: after reviewing adversarial attacks on sensing modalities for autonomous systems, we discuss countermeasures and present future research directions

    The Role of Hyperbaric Oxygen Therapy in Pneumatosis Cystoides Intestinalis—A Scoping Review

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    Pneumatosis cystoides intestinalis (PCI) is characterized by gas-filled cysts within gastrointestinal tract wall from esophagus to rectum, with preferential involvement of large and small intestine. PCI is rare with an estimated incidence of 0.03 to 0-2% in general population. PCI can be distinguished into idiopathic (15%) or secondary (85%) and the clinical picture ranges from completely asymptomatic to life-threatening intraabdominal complications. Although etiology of PCI appears to be multifactorial, the exact pathophysiology is poorly understood and two main theories have been proposed (mechanical and bacterial). Over the last decades, an enormous therapeutic armamentarium was considered in PCI's management, including hyperbaric oxygen therapy (HBOT). Treatment comprises conservative treatment in mild cases to surgery in highly symptomatic and complicated PCI. In the late 70s, HBOT started to be used in selected cases of PCI not responding to conservative measures. Since then, several case reports, case series, and reviews have been published in the literature with variable outcomes. The overall response rate and complete response were 92.1% (n = 82/89) and 65.2% (n = 58/89), respectively, with a median follow-up of 7 months. Furthermore, HBOT is extremely safe, with few reported complications in the literature when used for PCI. Nevertheless, a randomized, controlled, and double-blind clinical trial is unlikely to occur given the rarity of PCI, logistical issues of HBOT, and methodological considerations related to adequate blinding with a sham-controlled group. HBOT in combination with personalized diet and antibiotics may be beneficial for moderate to severe PCI in patients with no indication for emergency exploratory laparotomy. The purpose of this article is to synthesize the existing data, analyse results of previous studies, identify gaps in knowledge, and discuss PCI' management, including the proposal of an algorithm, with a special focus on HBOT.info:eu-repo/semantics/publishedVersio

    AKO-kevytsorabetonisen seinäelementin käyttö asuntokohteessa

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    Työn tarkoituksena oli tarkastella AKO-kevytsorabetonisen seinäelementin asennustyötä tehdystä sopimuksesta elementtien asennuksen loppuun saakka. Tuotannossa on aiemmissa kohteissa havaittu pieniä epäkohtia niin sopimusyksityiskohdissa kuin vastuukysymyksissä. Opinnäytetyön avulla työn toimeksiantaja Skanska Talonrakennus Oy sai lisävalmiuksia tuleviin sopimuksiin ja elementtien asennuksiin. Tarkastellaan aiemmin havaittujen tietojen pohjalta, miten voi ennalta valmistautua elementtiasennukseen. Sopimusyksityiskohtien tarkastelu ja mahdollisten lisätöiden muodostuminen ja niistä muodostuvat lisäkustannukset ovat pääasialliset tutkinnan kohteet. Opinnäytetyön tulokset tehtiin sopimuksiin perehtymällä, työmaalla tehtyjä havaintoja tekemällä ja epäkohtiin välittömästi puuttumalla ja kantaa ottamalla. Tulevissa kohteissa pölyyn ja sen muodostamaan haittaan osataan varautua varmasti paremmin. Täyttöjen osalta sopimusyksityiskohtia osataan täydentää.The purpose of this thesis was to examine the installation of AKO light gravel concrete wall elements from contracts to the finish of the actual installation work. In earlier building projects, Skanska has noticed faults relating to contracts details and responsibility issues. With the help of this study, Skanska was provited with more information for upcoming AKO element contracts and installation work. At first, earlier contracts, issues from previous work sites and causes of extra work in element installation were examined. The purchase and installation process of AKO elements were observed as a whole. Then, problems oc-curred at the construction site were reported. The main result of this thesis was further clarity regarding contract responsibility issues. Dust control of AKO element installations was also improved for future projects. The remaining contract details can be supplemented later on

    A Rash Decision. The Hazards of the Wrongful Use of Adrenaline

    No full text
    Anaphylaxis is life-threatening and should be addressed urgently. Its treatment is not without side effects and an accurate diagnosis must be made to prevent potential harm by the wrongful use of medication. A 46-year-old woman with hypertension treated with angiotensin converting enzyme inhibitor (ACEI) presented to the emergency department with non-pitting oedema of the face and limbs. A hasty diagnosis of anaphylaxis was made and intravenous adrenaline administered. The patient developed a myocardial infarction caused by coronary artery spasm that required invasive intervention. The initial clinical picture was resolved when the ACEI was discontinued unmasking a case of ACEI-induced angioedema. The correct differentiation of these two apparently similar clinical entities is of utmost importance in the management of emergency department patients.info:eu-repo/semantics/publishedVersio

    Benchmark for Human-to-Robot Handovers of Unseen Containers With Unknown Filling

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    The real-time estimation through vision of the physical properties of objects manipulated by humans is important to inform the control of robots for performing accurate and safe grasps of objects handed over by humans. However, estimating the 3D pose and dimensions of previously unseen objects using only RGB cameras is challenging due to illumination variations, reflective surfaces, transparencies, and occlusions caused both by the human and the robot. In this letter, we present a benchmark for dynamic human-to-robot handovers that do not rely on a motion capture system, markers, or prior knowledge of specific objects. To facilitate comparisons, the benchmark focuses on cups with different levels of transparencies and with an unknown amount of an unknown filling. The performance scores assess the overall system as well as its components in order to help isolate modules of the pipeline that need improvements. In addition to the task description and the performance scores, we also present and distribute as open source a baseline implementation for the overall pipeline to enable comparisons and facilitate progress
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