301 research outputs found
Replication Data for: The Dynamics of the Party System in Postwar Japan: A Quantitative Content Analysis of Electoral Pledges
No full textSven-Oliver Proksch, Jonathan B. Slapin, Michael Thies (2011) “The Dynamics of the Party System in Postwar Japan: A QuantitativeContentAnalysis of Electoral Pledges Electoral Studies.” Electoral Studies 30(1)
Replication Data for: The Dynamics of the Party System in Postwar Japan: A Quantitative Content Analysis of Electoral Pledges
No full textSven-Oliver Proksch, Jonathan B. Slapin, Michael Thies (2011) “The Dynamics of the Party System in Postwar Japan: A QuantitativeContentAnalysis of Electoral Pledges Electoral Studies.” Electoral Studies 30(1)
Sponge-associated fungi and their bioactive compounds - the Suberites case
No full textSpecimens of Suberites domuncula that had been cultured in aquaria for 4 weeks were analyzed for their associated fungi. A total of 81 fungal strains belonging to 20 different genera was isolated and identified by morphological and molecular methods. The most frequently isolated taxa were Cladosporium spp., Penicillium spp., Petriella sp., Phialophora spp. and Engyodontium album. Based on chromatographic and mass spectrometric analysis of fungal extracts, as well as on bioassay results, Aspergillus ustus, Penicillium sp., Petriella sp. and Scopulariopsis sp. were selected for in-depth analysis of their natural products. A total of 19 different fungal metabolites, including three new natural products, was isolated and structurally identified. A. ustus yielded two sesquiterpenes, a drimane derivative and deoxyuvidin, as well as a sesterterpene ophiobolin H. The drimane derivative had an ED50 value against L5178Y cells of 1.9 mu g ml(-1) in vitro. The crude extract of Petriella sp. was also strongly cytotoxic against the L5178Y cell line. The cyclic tetrapeptide WF-3161 was primarily responsible for the activity; the ED50 value was <0.1 mu g ml(-1). It was identical to the known compound WF-3161 and had been previously isolated from Petriella guttulata. In addition to WF-3161, three further natural products were obtained and unequivocally identified as new derivatives of infectopyrone by one-and two-dimensional NMR spectroscopy and by mass spectroscopy. Of the new compounds, only dihydroinfectopyrone was active against L5178Y cells; the ED50 value was 0.2 mu g ml(-1). Penicillium sp. yielded the largest number of metabolites. Viridicatin, viridicatol, cyclopenin and cyclopenol suppressed larval growth of the polyphagous pest insect Spodoptera littoralis when incorporated into an artificial diet at an arbitrarily chosen concentration of 237 ppm. Viridicatol was the most active compound and had an ED50 value of ca. 50 ppm. Scopulariopsis sp. yielded three metabolites, including the known acetylcholinesterase inhibitors quinolactacin A1 and A2
sj-docx-1-anz-10.1177_14413582231153191 – Supplemental material for How Micro-Influencers’ Personality Influences the Personality of Novice and Established Brands
No full textSupplemental material, sj-docx-1-anz-10.1177_14413582231153191 for How Micro-Influencers’ Personality Influences the Personality of Novice and Established Brands by Sebastian Zwicker, Liudmila Tarabashkina, Michael Proksch and Marco Hardiman in Australasian Marketing Journal</p
Unwürdige Arbeitslosigkeit : eine qualitative sozialpädagogische Studie zur Bedeutung von Langzeitarbeitslosigkeit im sozialen Wandel der späten Moderne
No full textMichael ProkschMasterarbeit Alpen-Adria-Universität Klagenfurt 2015Abstract in englischer Sprach
Competence enhancement and anticipated emotion as motivational drivers of brand attachment
No full textFocusing on the motivational processes underlying consumer attachments to brands, this research examines how competence enhancement and anticipated emotion (anxiety and joy) contribute to attachment. Personal attachment style (attachment anxiety) and type of motivation (intrinsic vs. extrinsic) are included as individual differences. Employing two field studies across different contexts indicates that competence enhancement leads to stronger attachments with anticipated anxiety (avoidance) and joy (approach) mediating this relationship. Analyses of moderated mediation further show that the effect mediated through anticipated emotion is stronger under conditions of high extrinsic and low intrinsic motivation, and when individual attachment anxiety is low. Implications for brand attachment research and management are discussed. © 2015 Wiley Periodicals, Inc.Michael Proksch, Ulrich R. Orth, T. Bettina Cornwel
How Developers Engage with Static Analysis Tools in Different Contexts
No full textAutomatic static analysis tools (ASATs) are instruments that support code quality assessment by automatically detecting defects and design issues. Despite their popularity, they are characterized by (i) a high false positive rate and (ii) the low comprehensibility of the generated warnings. However, no prior studies have investigated the usage of ASATs in different development contexts (e.g., code reviews, regular development), nor how open source projects integrate ASATs into their workflows. These perspectives are paramount to improve the prioritization of the identified warnings. To shed light on the actual ASATs usage practices, in this paper we first survey 56 developers (66% from industry and 34% from open source projects) and interview 11 industrial experts leveraging ASATs in their workflow with the aim of understanding how they use ASATs in different contexts. Furthermore, to investigate how ASATs are being used in the workflows of open source projects, we manually inspect the contribution guidelines of 176 open-source systems and extract the ASATs’ configuration and build files from their corresponding GitHub repositories. Our study highlights that (i) 71% of developers do pay attention to different warning categories depending on the development context; (ii) 63% of our respondents rely on specific factors (e.g., team policies and composition) when prioritizing warnings to fix during their programming; and (iii) 66% of the projects define how to use specific ASATs, but only 37% enforce their usage for new contributions. The perceived relevance of ASATs varies between different projects and domains, which is a sign that ASATs use is still not a common practice. In conclusion, this study confirms previous findings on the unwillingness of developers to configure ASATs and it emphasizes the necessity to improve existing strategies for the selection and prioritization of ASATs warnings that are shown to developers
Phenolic bisabolanes from the sponge-derived fungus Aspergillus sp.
No full textTwo new phenolic bisabolane sesquiterpenes, asperchondols A (1) and B (2), together with seven known analogues (3-9) and four known diphenyl ethers (10-13) were obtained from Aspergillus sp., that had been isolated from the marine sponge Chondrilla nucula. Their structures were elucidated through NMR and MS analysis, and by comparison with literature data. All isolated compounds were evaluated for their antibacterial activity against eight human pathogenic bacteria. Co-cultivation experiment of Aspergillus sp. with Bacillus subtilis was also conducted. (C) 2016 Phytochemical Society of Europe. Published by Elsevier Ltd. All rights reserved.Manchot Foundation; BMBF; TubitakSCI(E)[email protected]; [email protected]
New C-methylated flavonoids and alpha-pyrone derivative from roots of Talinum triangulare growing in Nigeria
No full textThe first chemical examination of roots of the traditionally used medicinal plant Talinum triangulare (Portulacaceae) from Nigeria led to the isolation of two new C-methylated flavonoids, 5,6-dimethoxy-7-hydroxy-8-methyl-flavone (1), 5,6-dimethoxy-8-methyl-2-phenyl-7H-1-benzopyran-7-one (2), and one new a-pyrone derivative, 4-methoxy-6-(2-hydroxy-4-phenylbutyl)-2H-pyran-2-one (3), along with thirteen known compounds, including nine amides (4-12), indole-3-carboxylic acid (13), p-hydroxy benzoic acid (14), and two steroids (15-16). Their structures were elucidated by extensive spectroscopic measurements including 1D, 2D NMR, MS, and by comparison with the literature. All isolated compounds were screened for their cytotoxic and antifungal activities. However, none of them showed significant activity. (C) 2016 Elsevier B.V. All rights reserved.Society for Medicinal Plant and Natural Product Research (GA)SCI(E)[email protected]; [email protected]
Ideology and the Politics of Constitution Making: The Institutional Organization of the European Convention
No full textThis study investigates the politics of constitution making through an analysis of the institutional organization of the European Union (EU) constitutional convention. Constitutional conventions resemble parliamentary bodies in terms of their institutional arrangements, and need to be studied with the same sensitivity that has been given to the study of legislatures. This study focuses on the role of committees in the EU Convention and their impact on the drafting process. Using new data on delegate positions in the Convention, I test two competing committee composition hypotheses, the outlier and representative committee hypothesis, with a Monte Carlo simulation technique. The four main results of this study are (1) that the political leadership of the European convention controlled to a large extent its institutional organization, (2) that committees were influential in the drafting process, (3) that there is stronger evidence for committee outliers than for representative committees, and (4) that the outlying committees were slanted to the left
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