1,721,211 research outputs found
Die Gasometer : moderne Nutzung und Sanierung der Gasbehälter in Simmering
No full textdurch Astrid Maria FrühwirtZsfassung in engl. Sprache. - Literaturverz. Bl. 108 - 110Wien, FH-Bau, FH-StG Bauingenieurwesen-Baumanagement, Dipl.-Arb., 200
Curvature-based construction of parameter domains for trimmed NURBS surface patches
No full textThis thesis presents a method for generating a parameter domain (more precisely the trimming curves defining it) for the construction of a trimmed surface, whose boundary curve interpolates a given closed space curve and that interpolates given tangent planes at the boundary. An appropriate domain is essential to constructs such trimmed surfaces. Our aim is to construct trimming curves that have a similar shape as the given loop. For that purpose we study the shape properties of the given closed space curve and establish an optimization problem in order to obtain a suitable domain. We conducted experiments and used the obtained trimming curves to fit trimmed surfaces.submitted by Selina Astrid Maria Klien, BScMasterarbeit Universität Linz 201
Curvature-based construction of parameter domains for trimmed NURBS surface patches
No full textThis thesis presents a method for generating a parameter domain (more precisely the trimming curves defining it) for the construction of a trimmed surface, whose boundary curve interpolates a given closed space curve and that interpolates given tangent planes at the boundary. An appropriate domain is essential to constructs such trimmed surfaces. Our aim is to construct trimming curves that have a similar shape as the given loop. For that purpose we study the shape properties of the given closed space curve and establish an optimization problem in order to obtain a suitable domain. We conducted experiments and used the obtained trimming curves to fit trimmed surfaces.submitted by Selina Astrid Maria Klien, BScMasterarbeit Universität Linz 201
Acute akinesia in Parkinson disease.
No full textObjective: To understand whether Acute Akinesia (AA) is a separate clinical entity in Parkinson’s Disease (PD), or it can be classified among the other known motor fluctuations.
Methods: 26, out of 675, PD patients, regularly followed in our out-patient clinic for 5.2±2.1 years, who had been evaluated at least 4 months (1.6±0.9) before the onset of a critical condition characterized by acute akinesia, were regularly rated with UPDRS motor scale until recovery of symptoms or eventual complications appeared. Oral dopaminergic treatments were administered in all, 50-200mg/day continuous s.c. apomorphine infusion was added in 18 patients in order to understand whether akinesia was responsive to dopaminomimetic manipulation. L-Dopa kinetics were studied during and after AA.
Results: 17 patients had AA concomitant with infectious diseases, or surgery and 9 patients had AA during gastro-intestinal tract disease or drug manipulation. Sudden worsening of motor symptoms by 31.4±12.8 UPDRS motor subscale score was observed for 11.2.±6.2 days despite treatment with drug dose increments or continuous s.c. apomorphine infusion. The recovery began 4-26 days after AA onset and was incomplete in 10 patients. 4 patients died despite treatments. L-Dopa kinetics were normal in all patients without gastro-intestinal tract disease, and in one patient with gastric stasis.
Conclusions: Transient refractoriness to apomorphine, duration of motor worsening and partial recovery suggest that AA might be considered a separate clinical condition not akin to motor fluctuations or to drug withdrawal symptoms
Going Beyond Counting First Authors in Author Co-citation Analysis
Full text linkThe present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation
counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings
are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that
only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into
account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed
Variations on the Author
Full text link“Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship
Appropriate Similarity Measures for Author Cocitation Analysis
Full text linkWe provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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