36 research outputs found

    Temporal Taylor's scaling of facial electromyography and electrodermal activity in the course of emotional stimulation

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    High frequency psychophysiological data create a challenge for quantitative modeling based on Big Data tools since they reflect the complexity of processes taking place in human body and its responses to external events. Here we present studies of fluctuations in facial electromyography (fEMG) and electrodermal activity (EDA) massive time series and changes of such signals in the course of emotional stimulation. Zygomaticus major (ZYG, "smiling" muscle) activity, corrugator supercilii (COR, "frowning"bmuscle) activity, and phasic skin conductance (PHSC, sweating) levels of 65 participants were recorded during experiments that involved exposure to emotional stimuli (i.e., IAPS images, reading and writing messages on an artificial online discussion board). Temporal Taylor's fluctuations scaling were found when signals for various participants and during various types of emotional events were compared. Values of scaling exponents were close to 1, suggesting an external origin of system dynamics and/or strong interactions between system's basic elements (e.g., muscle fibres). Our statistical analysis shows that the scaling exponents enable identification of high valence and arousal levels in ZYG and COR signals

    Reduction of airspace after lung resection through controlled paralysis of the diaphragm

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    Objectives: Residual airspace following thoracic resections is a common clinical problem. Persistent air leak, prolonged drainage time, and reduced hemostasis extend hospital stay and morbidity. We report a trial of pharmacologic-induced diaphragmatic paralysis through continuous paraphrenic injection of lidocaine to reduced residual airspace. The objectives were confirmation of diaphragmatic paralysis and possible procedure related complications. Methods: Six eligible patients undergoing resectional surgery (lobectomy or bilobectomy) were included. Inclusion criteria consisted of: postoperative predicted FEV1 greater than 1300ml, right-sided resection, absence of parenchymal lung disease, no class III antiarrhythmic therapy, absence of hypersensitivity reactions to lidocaine, no signs of infection, and informed consent. Upon completion of resection an epidural catheter was attached in the periphrenic tissue on the proximal pericardial surface, externalized through a separate parasternal incision, and connected to a perfusing system injecting lidocaine 1% at a rate of 3ml/h (30mg/h). Postoperative ICU surveillance for 24h and daily measurement of vital signs, drainage output, and bedside spirometry were performed. Within 48h fluoroscopic confirmation of diaphragmatic paralysis was obtained. The catheter removal coincided with the chest tube removal when no procedural related complications occurred. Results: None of the patients reported respiratory impairment. Diaphragmatic paralysis was documented in all patients. Upon removal of catheter or discontinuation of lidocaine prompt return of diaphragmatic motility was noticed. Two patients showed postoperative hemodynamic irrelevant atrial fibrillation. Conclusion: Postoperative paraphrenic catheter administration of lidocaine to ensure reversible diaphragmatic paralysis is safe and reproducible. Further studies have to assess a benefit in terms of reduction in morbidity, drainage time, and hospital stay, and determine the patients who will profi

    Digitally supported learning in nursing training: The Care Reflection Online (CARO) learning environment

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    Die tiefgreifende Mediatisierung (Hepp 2018) schliesst nahezu alle gesellschaftlichen Bereiche ein, so auch das Gesundheitswesen. In der Pflegeausbildung ist das Potential des Einsatzes digitaler Medien noch nicht vollumfänglich ausgeschöpft. Zwar werden punktuell digitale Medien, wie etwa Lernplattformen (Moodle), Programme (PowerPoint) oder einzelne Methoden (flinga) in die Lehre integriert. Dennoch erfolgt der Einsatz selten pflegedidaktisch fundiert (Darmann-Finck 2010). Mediendidaktische Ansätze, anhand derer das digital unterstütze Lernen gestaltet werden kann (Kerres 2018; Jahnke 2015), adressieren die Anforderungen des Unterrichtsgegenstandes «Pflege» nicht ausreichend. Im Projekt CARO (Laufzeit 2016 bis 2019) wurde daher ein sog. Classroom-Learning-Interaction-System (CARO CLIS) zur Unterstützung von Live-Interaktionen im Klassenraum entwickelt und evaluiert. Das CARO CLIS unterstützt komplexe Lern-, Interaktions- und Reflexionsprozesse pflege- und mediendidaktisch fundiert. Im folgenden Beitrag wird sowohl die Entwicklung und Evaluation der Software als auch der Unterrichtsinhalte auf Basis des Design-based Research Ansatzes (Koppel 2016) aufgezeigt. Darüber hinaus wird exemplarisch dargestellt, wie mit dem CARO CLIS pflegedidaktisch fundierte komplexe Bildungsziele mit Hilfe mediendidaktischer Interaktionsformate im Unterricht umgesetzt werden können.The deep mediatization (Hepp 2018) integrates almost all sectors of society, including health care. In nursing training, the potential of the use of digital media has not yet been fully exploited. Digital media, such as learning platforms (Moodle), programs (PowerPoint) or individual tools (flinga), are integrated in teaching processes. Nevertheless, the use is rarely carried out in a nursing-didactically way (Darmann-Finck 2010). Media didactic approaches to shape digitally supported learning (Kerres 2018; Jahnke 2015), do not adequately address the requirements of contents in nursing training. In the CARO project (running 2016 to 2019), a so-called Classroom Learning Interaction System (CARO CLIS) was developed and evaluated to support live interactions in the classroom. The CARO CLIS supports complex learning, interaction and reflection processes in a nursing and media-didactic way. The following article shows the development and evaluation of the software as well as the teaching content based on the design-based research approach (DBR) (Koppel 2016). In addition, it is exemplified how the CARO CLIS supports nursing-didactically well-founded complex educational goals using media-didactic interaction formats

    50 Jahre Neubau Universitätsbibliothek Stuttgart 2011

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    T e i l 1 Impressum, Sponsoren - Seite 4 Stephan, Werner: Einleitung und Dank - Seite 9 Einfachheit in Form und Material - less is more: Klaus-Jürgen Zabel über den Bau der Universitätsbibliothek (Interview mit Ottmar Pertschi und Christiane Rambach) - Seite 13 Paulus, Stefan: Amerika als Vorbild? Anmerkungen zu den politischen und kulturhistorischen Bedingungen an (west)deutschen Universitäten in den 1950er Jahren - Seite 19 Hering, Jürgen: Max Kade und die Technische Hochschule Stuttgart - Seite 41 Becker, Norbert: Die Technische Hochschule Stuttgart und ihre Bibliothek in der Nachkriegszeit - Seite 63 T e i l 2 Rambach, Christiane: Eine Bibliothek sucht ihren Standort - Seite 75 T e i l 3 Rambach, Christiane: Architekten auf Reisen: "new standards in library design" in Stuttgart - Seite 97 T e i l 4 Philipp, Klaus Jan: Die Universitätsbibliothek im architekturgeschichtlichen Kontext - Seite 125 Huster-Braumann, Henriette: Maximilian Debus: die Universitätsbibliothek und ihre Schrift - Seite 145 T e i l 5 Jost, Holger; Stürzebecher, Jörg: Moderate Moderne: Innenraumgestaltung der Universitätsbibliothek Stuttgart - Seite 153 T e i l 6 Küster, Bärbel: Kunst und Konsens 1958 - 1962: zur Ankaufsgeschichte der Plastik von Hans Uhlmann für die Universitätsbibliothek Stuttgart - Seite 171 Szymczyk-Eggert, Elisabeth: Die Zweigbibliothek auf dem Campus in Stuttgart-Vaihingen: vom Provisorium zur Dauereinrichtung - Seite 191 T e i l 7 Stephan, Werner: Bibliotheken der Zukunft - Seite 221 T e i l 8 Anhang: Architekten der Universitätsbibliothek: Volkart, Zabel, Klauss und Koschlig (Christiane Rambach) - Seite 233 Richtfest am 31. Juli 1959 (Schwäbisches Stück zum Richtfest der THB am 31. Juli 1959 von Hans Volkart - Richtspruch des Zimmerpoliers der AG Kübler und Züblin zum Richtfest der Universitätsbibliothek am 31. Juli 1959) - Seite 237 "Es lebe die Bibliothek!" Interne Bibliothekseinweihung am 17. Februar 1962 - Seite 243 Skizzen (Gedanken zu einem Anbau an die Universitätsbibliothek Stuttgart von Klaus-Jürgen Zabel 2011 - Ihre Universitätsbibliothek zum Selberbauen von Stefan Pertschi) - Seite 247 Literatur zum Bau der Universitätsbibliothek Stuttgart (eine Auswahl - Christiane Rambach) - Seite 253 Abkürzungsverzeichnis, Abbildungsnachweise - Seite 258 Namen- und Sachregister (Ottmar Pertschi) - Seite 263 Autorenverzeichnis - S. 27

    Berlin statement on legacy and emerging contaminants in polar regions

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    Polar regions should be given greater consideration with respect to the monitoring, risk assessment, and management of potentially harmful chemicals, consistent with requirements of the precautionary principle. Protecting the vulnerable polar environments requires (i) raising political and public awareness and (ii) restricting and preventing global emissions of harmful chemicals at their sources. The Berlin Statement is the outcome of an international workshop with representatives of the European Commission, the Arctic Council, the Antarctic Treaty Consultative Meeting, the Stockholm Convention on Persistent Organic Pollutants (POPs), environmental specimen banks, and data centers, as well as scientists from various international research institutions. The statement addresses urgent chemical pollution issues in the polar regions and provides recommendations for improving screening, monitoring, risk assessment, research cooperation, and open data sharing to provide environmental policy makers and chemicals management decision-makers with relevant and reliable contaminant data to better protect the polar environments. The consensus reached at the workshop can be summarized in just two words: “Act now!” Specifically, “Act now!” to reduce the presence and impact of anthropogenic chemical pollution in polar regions by. •Establishing participatory co-development frameworks in a permanent multi-disciplinary platform for Arctic-Antarctic collaborations and establishing exchanges between the Arctic Monitoring and Assessment Program (AMAP) of the Arctic Council and the Antarctic Monitoring and Assessment Program (AnMAP) of the Scientific Committee on Antarctic Research (SCAR) to increase the visibility and exchange of contaminant data and to support the development of harmonized monitoring programs. •Integrating environmental specimen banking, innovative screening approaches and archiving systems, to provide opportunities for improved assessment of contaminants to protect polar regions

    Monitoring Real Android Malware

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    Abstract. In the most comprehensive study on Android attacks so far (undertaken by the Android Malware Genome Project), the behaviour of more than 1, 200 malwares was analysed and categorised into common, recurring groups of attacks. Based on this work (and the corresponding actual malware files), we present an approach for specifying and identifying these (and similar) attacks using runtime verification. While formally, our approach is based on a first-order logic abstraction of malware behaviour, it practically relies on our Android event interception tool, MonitorMe, which lets us capture almost any system event that can be triggered by apps on a user's Android device. This paper details on MonitorMe, our formal specification of malware behaviour and practical experiments, undertaken with various different Android devices and versions on a wide range of actual malware incarnations from the above study. In a nutshell, we were able to detect real malwares from 46 out of 49 different malware families, which strengthen the idea that runtime verification may, indeed, be a good choice for mobile security in the future

    Runtime Verification meets Android Security

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    Abstract. A dynamic security mechanism for Android-powered devices based on runtime verification is introduced, which lets users monitor the behaviour of installed applications. The general idea and a prototypical implementation are outlined, an application to real-world security threats shown, and the underlying logical foundations, relating to the employed specification formalism, sketched.

    Recent advances in the synthesis of hierarchically porous silica materials on the basis of porous glasses

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    The thermal phase separation and subsequent leaching of sodium borosilicate glasses is a well established route for the preparation of porous glasses exhibiting adjustable pore sizes in the range of 1 nm up to almost 1 μm as well as a very flexible geometric shape. The combination of this route with a large spectrum of synthesis strategies for the implementation of an additional pore system enables the preparation of hierarchically porous glass-based materials. This review covers a wide range of preparative routes for hierarchically porous silica materials starting from the sodium borosilicate glass with a special emphasis on the very recent developments in this versatile field of materials engineering
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