37 research outputs found

    Framework for the Integration of Mobile Device Features in PLM

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    Currently, companies have covered their business processes with stationary workstations while mobile business applications have limited relevance. Companies can cover their overall business processes more time-efficiently and cost-effectively when they integrate mobile users in workflows using mobile device features. The objective is a framework that can be used to model and control business applications for PLM processes using mobile device features to allow a totally new user experience

    Framework for the Integration of Mobile Device Features in PLM

    Get PDF
    Currently, companies have covered their business processes with stationary workstations while mobile business applications have limited relevance. Companies can cover their overall business processes more time-efficiently and cost-effectively when they integrate mobile users in workflows using mobile device features. The objective is a framework that can be used to model and control business applications for PLM processes using mobile device features to allow a totally new user experience

    Spatiotemporal dynamics of feature-based attention spread: evidence from combined electroencephalographic and magnetoencephalographic recordings

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    Attentional selection on the basis of nonspatial stimulus features induces a sensory gain enhancement by increasing the firing-rate of individual neurons tuned to the attended feature, while responses of neurons tuned to opposite feature-values are suppressed. Here we recorded event-related potentials (ERPs) and magnetic fields (ERMFs) in human observers to investigate the underlying neural correlates of feature-based attention at the population level. During the task subjects attended to a moving transparent surface presented in the left visual field, while task-irrelevant probe stimuli executing brief movements into varying directions were presented in the opposite visual field. ERP and ERMF amplitudes elicited by the unattended task-irrelevant probes were modulated as a function of the similarity between their movement direction and the task-relevant movement direction in the attended visual field. These activity modulations reflecting globally enhanced processing of the attended feature were observed to start not before 200 ms poststimulus and were localized to the motion-sensitive area hMT. The current results indicate that feature-based attention operates in a global manner but needs time to spread and provide strong support for the feature-similarity gain model

    Hyperoxemia and excess oxygen use in early acute respiratory distress syndrome : Insights from the LUNG SAFE study

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    Publisher Copyright: © 2020 The Author(s). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.Background: Concerns exist regarding the prevalence and impact of unnecessary oxygen use in patients with acute respiratory distress syndrome (ARDS). We examined this issue in patients with ARDS enrolled in the Large observational study to UNderstand the Global impact of Severe Acute respiratory FailurE (LUNG SAFE) study. Methods: In this secondary analysis of the LUNG SAFE study, we wished to determine the prevalence and the outcomes associated with hyperoxemia on day 1, sustained hyperoxemia, and excessive oxygen use in patients with early ARDS. Patients who fulfilled criteria of ARDS on day 1 and day 2 of acute hypoxemic respiratory failure were categorized based on the presence of hyperoxemia (PaO2 > 100 mmHg) on day 1, sustained (i.e., present on day 1 and day 2) hyperoxemia, or excessive oxygen use (FIO2 ≥ 0.60 during hyperoxemia). Results: Of 2005 patients that met the inclusion criteria, 131 (6.5%) were hypoxemic (PaO2 < 55 mmHg), 607 (30%) had hyperoxemia on day 1, and 250 (12%) had sustained hyperoxemia. Excess FIO2 use occurred in 400 (66%) out of 607 patients with hyperoxemia. Excess FIO2 use decreased from day 1 to day 2 of ARDS, with most hyperoxemic patients on day 2 receiving relatively low FIO2. Multivariate analyses found no independent relationship between day 1 hyperoxemia, sustained hyperoxemia, or excess FIO2 use and adverse clinical outcomes. Mortality was 42% in patients with excess FIO2 use, compared to 39% in a propensity-matched sample of normoxemic (PaO2 55-100 mmHg) patients (P = 0.47). Conclusions: Hyperoxemia and excess oxygen use are both prevalent in early ARDS but are most often non-sustained. No relationship was found between hyperoxemia or excessive oxygen use and patient outcome in this cohort. Trial registration: LUNG-SAFE is registered with ClinicalTrials.gov, NCT02010073publishersversionPeer reviewe

    Framework for the Integration of Mobile Device Features in PLM

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    Currently, companies have covered their business processes with stationary workstations while mobile business applications have limited relevance. Companies can cover their overall business processes more time-efficiently and cost-effectively when they integrate mobile users in workflows using mobile device features. The objective is a framework that can be used to model and control business applications for PLM processes using mobile device features to allow a totally new user experience

    Blockade of the distal sciatic nerve with the patient in the supine position using a newly developed position aid with integrated ultrasound probe holder

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    Background: We have developed a femoral supporting pad with an integrated ultrasound probe holder and examined its practical usability on patients with lower limb surgery. Objectives: To evaluate the function of this novel femoral supporting pad with respect to its practicability during the performance of a distal sciatic nerve blockade, the time needed to perform this blockade including the catheter insertion and the quality of postoperative analgesia within the first 24 hours. Methods: 50 patients which had been scheduled for elective lower leg, ankle or foot surgery had received a continuous blockade of the distal sciatic nerve. Sciatic nerve blockade was performed sonographically controlled with the patients in supine position by using our novel femoral supporting pad with an integrated ultrasound probe holder. Primary endpoint: duration of the intervention. Secondary endpoints: pain intensity (visual analogue scale VAS 0-10) at the first postoperative day; cumulative opioid (piritramide) requirement during their stay on the post Anaesthesia care unit (PACU) with vs. without distal sciatic nerve blockade. Results: 49/50 patients received a distal sciatic catheter, which had been sonographically placed within a mean time (mean &plusmn; sd) of 11:30 &plusmn; 3:13 minutes. VAS at the first postoperative day was (mean &plusmn; sd) 1 &plusmn; 2 at rest and 2 &plusmn; 2 as maximum. The piritramide requirement during PACU stay (mean &plusmn; sd) was 11 &plusmn; 8 mg without vs. 3 &plusmn; 6 mg with distal sciatic nerve blockade (p&lt; 0.05). Conclusion: Continuous distal sciatic nerve blockade using a novel femoral supporting pad with an integrated ultrasound probe holder was feasible in 49 of 50 patients within 11 minutes and 30 seconds

    Syntaktische Funktions-Ambiguitäten im Deutschen : Ein Überblick

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    The aim of this article is to provide an overview of the last decade's psycholinguistic research on how syntactic functions are assigned during on-line language comprehension in German. In a language like German, the assignment of syntactic functions is not an easy task due to the pervasive morphological syncretism within the nominal System. Inspired by the work of Frazier (1987) on Dutch, research on German started with the question as to how the parser copes with ambiguous filler-gap dependencies in subject-object ambiguities. Work on this question quickly established a rather general subject-object preference in German subject-object ambiguities. Having established such a subject-object preference, several new lines of research emerged. We will review the three major lines that are currently in the focus of interest: (i) Besides subject-object ambiguities involving filler-gap dependencies, there are subject-object as well as object-object ambiguities which are only ambiguous with respect to case assignment. When these latter kinds of ambiguities where included in experimental studies, it soon became clear that case features play a role which cannot be reduced to phrase-structural configurations. (ii) Garden-path effects that are found when a locally ambiguous sentence is disambiguated in favor of a non-preferred reading have been shown to differ widely in strength. Investigating why this is so is now a major topic both in psycholinguistics in general and in experimental work on German in particular. (iii) The finding of subject-object-preferences might at least in certain cases be due to semantic/pragmatic factors instead of syntactic ones. Several experiments have now been conducted which manipulated some semantic/pragmatic property of test Stimuli in order to disentangle syntactic from semantic/pragmatic contributions to observable preferences

    Event-Related Brain Potentials and Case Information in Syntactic Ambiguities

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    In an ERP study German sentences were investigated that contain a case-ambiguous NP that may be assigned accusative or dative case. Sentences were disambiguated by the verb in final position of the sentence. As our data show, sentences ending in a verb that assigns dative case to the ambiguous NP elicit a clear garden-path effect. The garden-path effect was indicated by a broad centro-posterior negative shift that occurred between 300 and 900 msec after the dative-assigning verb was presented. No enhanced P600 following the misanalysis was observed. Noun phrases whose case ambiguity was resolved in favor of accusative case and unambiguouslv dativemarked NPs did not trigger significant ERP differences. We will discuss the implications of our results for parsing and its neuropsychological correlates. The results of this study support a parser design according to which the so-called structurdl case (nominative or accusative) is assigned without any delay in the absence of morpho-lexical counterevidence. It is argued that the enhancement of a negative ERP component with a "classical" N400 topographv reflects the difficulty of reanalysis due to reaccessing morpho-lexical information that lies outside the domain of the parsing module. Consequently, ERP responses to garden-path effects are not confined to a late positivity but vary depending on the level of processing involved in reanalysis. The fact that garden-path effects may also elicit an N400 can be linked to the nonhomogeneous linguistic properties of the constructions from which they arise

    Is human sentence parsing serial or parallel? : Evidence from event-related brain potentials

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    In this ERP study we investigate the processes that occur in syntactically ambiguous German sentences at the point of disambiguation. Whereas most psycholinguistic theories agree on the view that processing difficulties arise when parsing preferences are disconfirmed (so-called garden-path effects), important differences exist with respect to theoretical assumptions about the parser s recovery from a misparse. A key distinction can be made between parsers that compute all alternative syntactic structures in parallel (parallel parsers) and parsers that compute only a single preferred analysis (serial parsers). To distinguish empirically between parallel and serial parsing models, we compare ERP responses to garden-path sentences with ERP responses to truly ungrammatical sentences. Garden-path sentences contain a temporary and ultimately curable ungrammaticality, whereas truly ungrammatical sentences remain so permanently a difference which gives rise to different predictions in the two classes of parsing architectures. At the disambiguating word, ERPs in both sentence types show negative shifts of similar onset latency, amplitude, and scalp distribution in an initial time window between 300 and 500 ms. In a following time window (500 700 ms), the negative shift to garden-path sentences disappears at right central parietal sites, while it continues in permanently ungrammatical sentences. These data are taken as evidence for a strictly serial parser. The absence of a difference in the early time window indicates that temporary and permanent ungrammaticalities trigger the same kind of parsing responses. Later differences can be related to successful reanalysis in garden-path but not in ungrammatical sentences
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