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Search Results: 1 - 10 of 1027 matches for " Maja Rooth "
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Noninvasive Assessment of Autonomic Cardiovascular Function in Patients after Arterial Switch Operation for Transposition of the Great Arteries  [PDF]
Joanna Hlebowicz, Maja Rooth, Sandra Lindstedt, Johan Holm, Ulf Thilén
Surgical Science (SS) , 2015, DOI: 10.4236/ss.2015.63020
Abstract:

Background: Children born with transposition of the great arteries (TGA) must undergo corrective surgery for survival, arterial switch being the standard surgical procedure. The sympathetic innervation of the heart may be damaged during the operation. This study was designed to determine whether adults who were born with TGA and who had arterial switch operation (ASO) in infancy exhibit denervation of the heart, measured as heart rate variability (HRV) with electrocardiography (ECG). Methods: Nine patients with transposition of the great arteries (four men and five women; mean age 26 ± 1 years) who underwent the ASO at a mean age of 85 ± 35 days, and nine healthy adults (five men and five women; mean age 26 ± 2) were included in the study. Cardiac autonomic nerve function was determined by the variation in RR intervals during maximal deep breathing, monitored by continuous ECG. The mean values were calculated for each group from six inspirations (I) and expirations (E), and the E:I ratios were calculated. Results: The E:I ratio did not differ between patients with an arterial switch and healthy controls (P= 0.161). Two patients had signs of denervation of the heart up to 30 years after the arterial switch operation. Conclusions: Reinnervation of the heartmay take place in patients who have undergone the ASO in infancy, and these patients would not necessarily suffer from autonomic dysfunction. The HRV, measured by ECG, has the potential to identify arterially switched patients at risk of developing silent myocardial ischemia.

Epistemic NP Modifiers
Dorit Abusch,Mats Rooth
Computer Science , 1997,
Abstract: The paper considers participles such as "unknown", "identified" and "unspecified", which in sentences such as "Solange is staying in an unknown hotel" have readings equivalent to an indirect question "Solange is staying in a hotel, and it is not known which hotel it is." We discuss phenomena including disambiguation of quantifier scope and a restriction on the set of determiners which allow the reading in question. Epistemic modifiers are analyzed in a DRT framework with file (information state) discourse referents. The proposed semantics uses a predication on files and discourse referents which is related to recent developments in dynamic modal predicate calculus. It is argued that a compositional DRT semantics must employ a semantic type of discourse referents, as opposed to just a type of individuals. A connection is developed between the scope effects of epistemic modifiers and the scope-disambiguating effect of "a certain".
Valence Induction with a Head-Lexicalized PCFG
Glenn Carroll,Mats Rooth
Computer Science , 1998,
Abstract: This paper presents an experiment in learning valences (subcategorization frames) from a 50 million word text corpus, based on a lexicalized probabilistic context free grammar. Distributions are estimated using a modified EM algorithm. We evaluate the acquired lexicon both by comparison with a dictionary and by entropy measures. Results show that our model produces highly accurate frame distributions.
Monuments and Counter-Monument Sights in Post-Conflict Bosnia and Herzegovina: A Case Study of Gavrilo Princip’s Monuments  [PDF]
Maja Slijepcevic
Sociology Mind (SM) , 2016, DOI: 10.4236/sm.2016.63010
Abstract: The ever-present need of remembering and reimagining the memory through the culture of building memorial sights, as markers of identity, at the places of extreme violence in the immediate aftermaths of the conflict deescalation was a light motive for writing this paper. By allocating the empirical research on the ground of Bosnia and Herzegovina, there is a great opportunity to re-examine the dense perplexity of issues that are enhancing the momentum of the memory juxtaposed with the counter-memory, whereas different interest groups (political or civil) are simultaneously producing competing memories. The case study of BiH allows us to notice and highlight the multidimensionality of memory and counter-memoryalong the way of Bosnian postwar society towards the reconciliation, how it enables the identity building and the nation re-building during the processes of political consolidation and its didactic use for further conflict prevention. Using the discourses, visual materials and interviews from the field research adjusted on the post-conflict memory sites in Federation of Bosnia and Herzegovina vs Republika Srpska(case study monuments of Gavrilo Principe in Sarajevo vs East Sarajevo), I would like to pinpoint the chasm between the actual purpose of memory sites that are built there after the conflict and the danger of them miscommunicating the conflict inflicted past that could possibly lead to a restoration of that latent conflict. Therefore, my research is concentrated on the coupled counter-memorial sites, which are of enormous importance for the process of reconciliation because of their role of keeping balance to the official narratives and memorials, despite of the fact that this role of them is usually neglected by scholars.
Using a Probabilistic Class-Based Lexicon for Lexical Ambiguity Resolution
Detlef Prescher,Stefan Riezler,Mats Rooth
Computer Science , 2000,
Abstract: This paper presents the use of probabilistic class-based lexica for disambiguation in target-word selection. Our method employs minimal but precise contextual information for disambiguation. That is, only information provided by the target-verb, enriched by the condensed information of a probabilistic class-based lexicon, is used. Induction of classes and fine-tuning to verbal arguments is done in an unsupervised manner by EM-based clustering techniques. The method shows promising results in an evaluation on real-world translations.
Extensive dynamics of Plasmodium falciparum densities, stages and genotyping profiles
Anna F?rnert, Marianne Lebbad, Lea Faraja, Ingegerd Rooth
Malaria Journal , 2008, DOI: 10.1186/1475-2875-7-241
Abstract: Capillary blood samples were collected 6-hourly during five days from asymptomatic children in a highly endemic area in Tanzania. Parasite densities and maturation stages were investigated by light microscopy. Types and number of clones were analysed by PCR based genotyping of the polymorphic merozoite surface proteins 1 and 2 genes. Results: Parasite densities and maturation stages fluctuated 48-hourly with a gradual shift into more mature forms. Various genotyping patterns were observed in repeated samples over five days with only few samples with identical profiles. Up to six alleles differed in samples collected six hours apart in the same individual.This detailed assessment highlights the extensive within-host dynamics of P. falciparum populations and the limitations of single blood samples to determine parasite densities, stages and genotyping profiles in a malaria infected individual.Longitudinal studies with repeated genotyping of Plasmodium falciparum infections in partially immune individuals in areas of high malaria transmission have revealed that different parasites are often detected in their peripheral blood over time (days-months) [1-4]. These changes are a result of new inoculations, immune clearance and intake of anti-malarial drugs. Moreover, within-host dynamics result in that all parasite types infecting an individual may not be present in the peripheral blood at the time of blood sampling [2-4].Characterization of P. falciparum populations is widely performed by PCR genotyping based on the polymorphism of the merozoite surface proteins 1 and 2 genes (msp1 and msp2). The method is used in molecular epidemiology studies of malaria to define the types and number of genotypes, i.e. clones, in relation to factors such as transmission intensity, age and host immunity. Also in anti-malarial drug trials, genotyping is used to determine whether recurrent parasitaemias are due to new infections or to recrudescence of the initial parasites suggesting treat
Inducing a Semantically Annotated Lexicon via EM-Based Clustering
Mats Rooth,Stefan Riezler,Detlef Prescher,Glenn Carroll,Franz Beil
Computer Science , 1999,
Abstract: We present a technique for automatic induction of slot annotations for subcategorization frames, based on induction of hidden classes in the EM framework of statistical estimation. The models are empirically evalutated by a general decision test. Induction of slot labeling for subcategorization frames is accomplished by a further application of EM, and applied experimentally on frame observations derived from parsing large corpora. We outline an interpretation of the learned representations as theoretical-linguistic decompositional lexical entries.
Inside-Outside Estimation of a Lexicalized PCFG for German
Franz Beil,Glenn Carroll,Detlef Prescher,Stefan Riezler,Mats Rooth
Computer Science , 1999,
Abstract: The paper describes an extensive experiment in inside-outside estimation of a lexicalized probabilistic context free grammar for German verb-final clauses. Grammar and formalism features which make the experiment feasible are described. Successive models are evaluated on precision and recall of phrase markup.
Temporal Processing of Vibratory Communication Signals at the Level of Ascending Interneurons in Nezara viridula (Hemiptera: Pentatomidae)
Maja Zorovi?
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0026843
Abstract: During mating, males and females of N. viridula (Heteroptera: Pentatomidae) produce sex- and species-specific calling and courtship substrate-borne vibratory signals, grouped into songs. Recognition and localization of these signals are fundamental for successful mating. The recognition is mainly based on the temporal pattern, i.e. the amplitude modulation, while the frequency spectrum of the signals usually only plays a minor role. We examined the temporal selectivity for vibratory signals in four types of ascending vibratory interneurons in N. viridula. Using intracellular recording and labelling technique, we analyzed the neurons' responses to 30 pulse duration/interval duration (PD/ID) combinations. Two response arrays were created for each neuron type, showing the intensity of the responses either as time-averaged spike counts or as peak instantaneous spike rates. The mean spike rate response arrays showed preference of the neurons for short PDs (below 600 ms) and no selectivity towards interval duration; while the peak spike rate response arrays exhibited either short PD/long ID selectivity or no selectivity at all. The long PD/short ID combinations elicited the weakest responses in all neurons tested. No response arrays showed the receiver preference for either constant period or duty cycle. The vibratory song pattern selectivity matched the PD of N. viridula male vibratory signals, thus pointing to temporal filtering for the conspecific vibratory signals already at level of the ascending interneurons. In some neurons the responses elicited by the vibratory stimuli were followed by distinct, regular oscillations of the membrane potential. The distance between the oscillation peaks matched the temporal structure of the male calling song, indicating a possible resonance based mechanism for signal recognition.
Formulating Future Just Policies: Applying the Delhi Sustainable Development Law Principles
Maja Goepel
Sustainability , 2010, DOI: 10.3390/su2061694
Abstract: The nature of the concept of sustainability makes it difficult to coordinate and monitor the implementation of sustainable development in the formulation of effective policy. The International Law Association at its meeting in New Delhi in 2002 offered a set of seven Principles of International Law Relating to Sustainable Development as a definitive tool to inform the formulation of policy and potentially legal arrangements. This article describes a research project by the World Future Council that used these principles as the basis for a methodology to assess and evaluate how a range of policies might contribute to sustainable development in the interest of future generations. Three ―"best" policies on food security are evaluated and their common characteristics are identified. The article finally discusses how policy assessments based on principles accepted internationally might contribute to accelerated, effective and coherent implementation of sustainable development, even where the prevailing institutional approach treats ecological, social, economic and cultural issues as separate factors.
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