2,230 research outputs found

    A Birational Anabelian Reconstruction Theorem for Curves over Algebraically Closed Fields in Arbitrary Characteristic

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    The aim of Bogomolov's programme is to prove birational anabelian conjectures for function fields K∣kK|k of varieties of dimension ≥2\geq 2 over algebraically closed fields. The present article is concerned with the 1-dimensional case. While it is impossible to recover K∣kK|k from its absolute Galois group alone, we prove that it can be recovered from the pair (Aut(K‾∣k),Aut(K‾∣K))(\mathrm{Aut}(\overline{K}|k),\mathrm{Aut}(\overline{K}|K)), consisting of the absolute Galois group of KK and the larger group of field automorphisms fixing only the base field.Comment: 15 pages, final version accepted by the journa

    Tasking Framework: Parallelization of Computations in Onboard Control Systems

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    For the next generation of onboard computer in space application a high demand on processing power exists. Currently used onboard system didn't provide the necessary computing power. The in the paper describe tasking frame work is the core processing model for the OBC-NG (On Board Computer - Next Generation) operating system with an reactive computing model

    The first partnership experience and personality development. A propensity score matching study in young adulthood

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    Personality development in young adulthood has been associated with the experience of a number of new social roles. However, the causal interpretation of these findings is complicated by the fact that it is not possible to randomize young adults by their life experiences. To address this problem in the context of the first partnership experience, we applied propensity score matching to a sample of initially inexperienced singles and followed them across 4 years. Using matched samples, results indicated that the first partnership experience relatively robust increased life satisfaction. The first partnership experience between the ages of 23 and 25 (but not in other ages) was also related to higher self-esteem, extraversion, and conscientiousness and to lower neuroticism. The discussion highlights the effect of the first partnership on the development of a mature personality and the potential for propensity score matching to make useful contributions to social and personality research. (DIPF/Orig.

    The SLS-Berlin: Validation of a German Computer-Based Screening Test to Measure Reading Proficiency in Early and Late Adulthood

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    Reading proficiency, i.e., successfully integrating early word-based information and utilizing this information in later processes of sentence and text comprehension, and its assessment is subject to extensive research. However, screening tests for German adults across the life span are basically non-existent. Therefore, the present article introduces a standardized computerized sentence-based screening measure for German adult readers to assess reading proficiency including norm data from 2,148 participants covering an age range from 16 to 88 years. The test was developed in accordance with the children’s version of the Salzburger LeseScreening (SLS, Wimmer and Mayringer, 2014). The SLS-Berlin has a high reliability and can easily be implemented in any research setting using German language. We present a detailed description of the test and report the distribution of SLS-Berlin scores for the norm sample as well as for two subsamples of younger (below 60 years) and older adults (60 and older). For all three samples, we conducted regression analyses to investigate the relationship between sentence characteristics and SLS-Berlin scores. In a second validation study, SLS-Berlin scores were compared with two (pseudo)word reading tests, a test measuring attention and processing speed and eye-movements recorded during expository text reading. Our results confirm the SLS-Berlin’s sensitivity to capture early word decoding and later text related comprehension processes. The test distinguished very well between skilled and less skilled readers and also within less skilled readers and is therefore a powerful and efficient screening test for German adults to assess interindividual levels of reading proficiency

    Combining quantitative narrative analysis and predictive modeling - an eye tracking study

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    As a part of a larger interdisciplinary project on Shakespeare sonnets’ reception (Jacobs et al., 2017; Xue et al., 2017), the present study analyzed the eye movement behavior of participants reading three of the 154 sonnets as a function of seven lexical features extracted via Quantitative Narrative Analysis (QNA). Using a machine learning- based predictive modeling approach five ‘surface’ features (word length, orthographic neighborhood density, word frequency, orthographic dissimilarity and sonority score) were detected as important predictors of total reading time and fixation probability in poetry reading. The fact that one phonological feature, i.e., sonority score, also played a role is in line with current theorizing on poetry reading. Our approach opens new ways for future eye movement research on reading poetic texts and other complex literary materials (cf. Jacobs, 2015c)

    A model of equal opportunity

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    Fairness assumptions have a lot of positive consequences. For example, is the perceived justice relevant to job satisfaction and attitudes towards distributions of social goods. But what is a fair distribution of social goods? In the distributive justice research three principles can be distinguished according to which justice judgments are made: Need, equality and equity. The first article of this dissertation examines how justice for these three principles is perceived. With the model of equal opportunity it is assumed that the assumption of equality between the stakeholders is crucial to the justice judgment. Depending on whether equal opportunity is accepted or not, different principles are perceived. The results in the context of education confirm that the perception of the three principles of justice can be explained by the assumption of equal opportunities. Whether equal opportunity is accepted or not depends on the attitude to equal opportunities. In attitude research it is becoming increasingly obvious that implicit (automatic) and explicit (reflected) attitudes influence behaviour. The investigation of implicit and explicit attitudes to equal opportunities and the investigation of the model of equal opportunity in a different context are discussed in the second article of the present dissertation. It is discussed whether cognitive dissonance can dissolve the conclusion that people who implicitly assume equal opportunities prefer need-based distributions. The results in an economic context confirm that it is useful in justice research to differentiate between implicit and explicit attitudes. The third article brings into focus also an economic context it is postulated that the self-concept, namely the whole set of attitudes, opinions, and cognitions that a person has of himself, has an influence on the perception of the three principles of justice and on the model of equal opportunity. The third article of this dissertation examines whether the interdependent self-concept influences the choice of principles of justice. The results confirm this assumption
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