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  1. Performance and structures of the German science system
    2021, Performance and structures of the German science system 2021 / Dimity Stephen, Stephan Stahlschmidt ; Deutsches Zentrum für Hochschul- und Wissenschaftsforschung GmbH
    Autor*in: Stephen, Dimity; Stahlschmidt, Stephan
    Erschienen: [2021]
    Verlag:  Expertenkommission Forschung und Innovation (EFI), Berlin

    This study updates the annual comparative analysis of the performance and structures of the German science system. We use several bibliometric indicators of productivity, impact, and international collaboration to assess Germany's performance for the... mehr

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    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 571
    Fernleihe:
    keine Fernleihe

     

    This study updates the annual comparative analysis of the performance and structures of the German science system. We use several bibliometric indicators of productivity, impact, and international collaboration to assess Germany's performance for the period 1995-2019 compared against 22 countries and the EU13, EU14, EU27, and OECD country groups, and an intra-Germany assessment of six sectors of the science system. Overall, all countries increased their scientific productivity over time, with particularly strong growth in China and India. China now produces nearly 25 percent of global publications and the USA, Germany, and other leading countries have accordingly lost shares. Germany continued to publish in highly visible journals and attract above-average citations. Notably, China increased both its visibility and impact to above-average levels for the first time in 2017. International collaboration continued to increase, and Germany now collaborates on 60 percent of publications, up from 50 percent a decade ago, a level in line with other large European countries, and remains a sought-after collaboration partner alongside the USA.

     
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/231473
    Übergeordneter Titel: Performance and structures of the German science system - Alle Bände anzeigen
    Auflage/Ausgabe: Stand: Februar 2021
    Schriftenreihe: Studies on the German innovation system ; no. 2021, 5
    Schlagworte: Wissenschaft; Bibliometrie; Forschungsevaluation; Internationaler Wettbewerb; Deutschland
    Umfang: 1 Online-Ressource (circa 37 Seiten), Illustrationen
  2. Performance and structures of the German science system
    2022, Performance and structures of the German science system 2022 / Dimity Stephen, Stephan Stahlschmidt ; Deutsches Zentrum für Hochschul- und Wissenschaftsforschung GmbH
    Autor*in: Stephen, Dimity; Stahlschmidt, Stephan
    Erschienen: [2022]
    Verlag:  Expertenkommission Forschung und Innovation (EFI), Berlin

    This study updates the annual comparative analysis of the performance and structures of the German science system. We use several bibliometric indicators of productivity and academic impact to assess Germany's performance for the period 1995-2020... mehr

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    Standort:
    Universitätsbibliothek Braunschweig
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    Universitätsbibliothek Clausthal
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    Fachhochschule Erfurt, Hochschulbibliothek
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    Niedersächsische Staats- und Universitätsbibliothek Göttingen
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    Universitäts- und Landesbibliothek Sachsen-Anhalt / Zentrale
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    Helmut-Schmidt-Universität, Universität der Bundeswehr Hamburg, Universitätsbibliothek
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    Staats- und Universitätsbibliothek Hamburg Carl von Ossietzky
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    Technische Universität Hamburg, Universitätsbibliothek
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    Bibliothek der Hochschule Hannover
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    Technische Informationsbibliothek (TIB) / Leibniz-Informationszentrum Technik und Naturwissenschaften und Universitätsbibliothek
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    Thüringer Universitäts- und Landesbibliothek
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    Universitätsbibliothek Kiel, Zentralbibliothek
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    Leuphana Universität Lüneburg, Medien- und Informationszentrum, Universitätsbibliothek
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    Bibliotheks-und Informationssystem der Carl von Ossietzky Universität Oldenburg (BIS)
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    Jade Hochschule Wilhelmshaven/Oldenburg/Elsfleth, Campus Oldenburg, Bibliothek
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    Jade Hochschule Wilhelmshaven/Oldenburg/Elsfleth, Campus Elsfleth, Bibliothek
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    Hochschule Osnabrück, Bibliothek Campus Westerberg
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    Hochschule Albstadt-Sigmaringen, Bibliothek Sigmaringen
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    Jade Hochschule Wilhelmshaven/Oldenburg/Elsfleth, Campus Wilhelmshaven, Bibliothek
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    This study updates the annual comparative analysis of the performance and structures of the German science system. We use several bibliometric indicators of productivity and academic impact to assess Germany's performance for the period 1995-2020 compared against 22 countries and the EU13, EU14, EU27, and OECD country groups. Having overtaken the USA in 2018 and the Europe Union in 2019, China continues its growth in the international science system, producing nearly a quarter (23.1%) of all Web of Science-indexed publications in 2020. Germany maintained its position as fourth largest producer with 3.9% of global publications, while India's growth narrowed the gap to rank it fifth (3.8%). Germany continued to publish in highly visible journals and received average attention citations in these journals. China further increased both its presence in highly visible journals and impact in these journals beyond the above average levels first achieved in 2017. Taken together, China's improving performance, the rapidly growing contributions from India, and the declining indicator-based performance of historically strong systems such as the USA, Germany, and France, highlight profound structural changes in the global science system.

     
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/251359
    Übergeordneter Titel: Performance and structures of the German science system - Alle Bände anzeigen
    Auflage/Ausgabe: Stand: Februar 2022
    Schriftenreihe: Studies on the German innovation system ; no. 2022, 5
    Schlagworte: Forschung; Innovation; Internationaler Wettbewerb; Wissenschaft; Bibliometrie; Vergleich; EU-Staaten; USA; OECD-Staaten; China; Deutschland
    Umfang: 1 Online-Ressource (17 Seiten, 3,41 MB), Illustrationen
    Bemerkung(en):

    Literaturverzeichnis: Seite 14
  3. Performance and structures of the German science system
    2020, Performance and structures of the German science system 2020 / Dimity Stephen, Stephan Stahlschmidt and Sybille Hinze (German Centre for Higher Education Research and Science Studies (DZHW))
    Autor*in: Stephen, Dimity; Stahlschmidt, Stephan; Hinze, Sybille
    Erschienen: February 2020
    Verlag:  Expertenkommission Forschung und Innovation (EFI), Berlin

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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
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    DS 571
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    Export in Literaturverwaltung   RIS-Format
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/214723
    Übergeordneter Titel: Performance and structures of the German science system - Alle Bände anzeigen
    Schriftenreihe: Studies on the German innovation system ; no. 2020, 5
    Schlagworte: Wissenschaft; Bibliometrie; Forschungsevaluation; Internationaler Wettbewerb; Deutschland
    Umfang: 1 Online-Ressource (circa 37 Seiten), Illustrationen
  4. Performance and structures of the German science system
    Autor*in: Stahlschmidt, Stephan; Stephen, Dimity; Hinze, Sybille
    Erschienen: Februar 2019
    Verlag:  Expertenkommission Forschung und Innovation (EFI), Berlin

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 571
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    Export in Literaturverwaltung   RIS-Format
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    Volltext (kostenfrei)
    Volltext (kostenfrei)
    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/194275
    Schriftenreihe: Studien zum deutschen Innovationssystem ; Nr. 2019, 5
    Umfang: 1 Online-Ressource (circa 91 Seiten), Illustrationen
  5. A new perspective on the economic valuation of informal care
    the well-being approach revisited
    Autor*in: Kehl, Konstantin; Stahlschmidt, Stephan
    Erschienen: 2013
    Verlag:  SFB 649, Economic Risk, Berlin

    Informal care has drawn much attention among scholars and policymakers as it concerns an essential but hard to evaluate resource of welfare. Albeit several studies addressed the monetary value of informal care, differences in the relationship between... mehr

    Standort:
    Staats- und Universitätsbibliothek Bremen
    Fernleihe:
    keine Fernleihe

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 86 (2013,35)
    Fernleihe:
    keine Fernleihe

     

    Informal care has drawn much attention among scholars and policymakers as it concerns an essential but hard to evaluate resource of welfare. Albeit several studies addressed the monetary value of informal care, differences in the relationship between caregivers and recipients have often been ignored. We report on a profound and formerly unobserved distinction between care in the household and non-household care for a family member or in a voluntary framework. According to our results caregivers within the household perceive care as a burden and a positive shadow price arises. By contrast in the family but non-household context - and especially in the voluntary case - care is (at least partly) understood as an enriching experience which extends well-being and leads to negative shadow prices. This distinction calls a marketized view of informal care into question and may contribute to explaining the limitations of monetary incentive policies to encourage informal care.

     
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/79611
    Schriftenreihe: SFB 649 discussion paper ; 2013-035
    Umfang: Online-Ressource (31 S.)
  6. Expectile treatment effects
    an efficient alternative to compute the distribution of treatment effects
    Autor*in: Stahlschmidt, Stephan; Eckardt, Matthias; Härdle, Wolfgang
    Erschienen: 2014
    Verlag:  SFB 649, Economic Risk, Berlin

    The distribution of treatment e ects extends the prevailing focus on average treatment e ects to the tails of the outcome variable and quantile treatment effects denote the predominant technique to compute those effects in the presence of a... mehr

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    Staats- und Universitätsbibliothek Bremen
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    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 86 (2014,59)
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    The distribution of treatment e ects extends the prevailing focus on average treatment e ects to the tails of the outcome variable and quantile treatment effects denote the predominant technique to compute those effects in the presence of a confounding mechanism. The underlying quantile regression is based on a L1-loss function and we propose the technique of expectile treatment effects, which relies on expectile regression with its L2-loss function. It is shown, that apart from the extreme tail ends expectile treatment effects provide more efficient estimates and these theoretical results are broadened by a simulation and subsequent analysis of the classic LaLonde data. Whereas quantile and expectile treatment effects perform comparably on extreme tail locations, the variance of the expectile variant amounts in our simulation on all other locations to less than 80% of its quantile equivalent and under favourable conditions to less than 2/3. In the LaLonde data expectile treatment effects reduce the variance by more than a quarter, while at the same time smoothing the treatment e ects considerably.

     
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    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/107922
    Schriftenreihe: SFB 649 discussion paper ; 2014-059
    Umfang: Online-Ressource (20 S.), graph. Darst.
  7. Bayesian Networks and sex-related homicides
    Autor*in: Stahlschmidt, Stephan; Tausendteufel, Helmut; Härdle, Wolfgang
    Erschienen: 2011
    Verlag:  SFB 649, Economic Risk, Berlin

    We present a statistical investigation on the domain of sex-related homicides. As general sociological and psychological theory on this specific type of crime is incomplete or even lacking, a data-driven approach is implemented. In detail, graphical... mehr

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    Staats- und Universitätsbibliothek Bremen
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    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 86 (2011,45)
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    We present a statistical investigation on the domain of sex-related homicides. As general sociological and psychological theory on this specific type of crime is incomplete or even lacking, a data-driven approach is implemented. In detail, graphical modelling is applied to learn the dependency structure and several structure learning algorithms are combined to yield a skeleton corresponding to distinct Bayesian Networks. This graph is subsequently analysed and presents a distinction between an offender and a situation driven crime. -- Bayesian Networks ; structure learning ; offender profiling

     
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    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/56628
    Schriftenreihe: SFB 649 discussion paper ; 2011-045
    Schlagworte: Gewalt; Sexuelle Belästigung; Bayes-Statistik
    Umfang: Online-Ressource (PDF-Datei: 20 S., 597 KB), graph. Darst.
  8. An application of principal component analysis on multivariate time-stationary spatio-temporal data
    Autor*in: Stahlschmidt, Stephan; Härdle, Wolfgang; Thome, Helmut
    Erschienen: 2014
    Verlag:  SFB 649, Economic Risk, Berlin

    Principal component analysis denotes a popular algorithmic technique to dimension reduction and factor extraction. Spatial variants have been proposed to account for the particularities of spatial data, namely spatial heterogeneity and spatial... mehr

    Standort:
    Staats- und Universitätsbibliothek Bremen
    Fernleihe:
    keine Fernleihe

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 86 (2014,16)
    Fernleihe:
    keine Fernleihe

     

    Principal component analysis denotes a popular algorithmic technique to dimension reduction and factor extraction. Spatial variants have been proposed to account for the particularities of spatial data, namely spatial heterogeneity and spatial autocorrelation, and we present a novel approach which transfers principal component analysis into the spatio-temporal realm. Our approach, named stPCA, allows for dimension reduction in the attribute space while striving to preserve much of the data's variance and maintaining the data's original structure in the spatio-temporal domain. Additionally to spatial autocorrelation stPCA exploits any serial correlation present in the data and consequently takes advantage of all particular features of spatial-temporal data. A simulation study underlines the superior performance of stPCA if compared to the original PCA or its spatial variants and an application on indicators of economic deprivation and urbanism demonstrates its suitability for practical use.

     
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    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/93227
    Schriftenreihe: SFB 649 discussion paper ; 2014-016
    Umfang: Online-Ressource (22 S.), graph. Darst., Kt.
  9. A new perspective on the economic valuation of informal care
    the well-being approach revisited
    Autor*in: Kehl, Konstantin; Stahlschmidt, Stephan
    Erschienen: 2013
    Verlag:  SFB 649, Economic Risk, Berlin

    Informal care has drawn much attention among scholars and policymakers as it concerns an essential but hard to evaluate resource of welfare. Albeit several studies addressed the monetary value of informal care, differences in the relationship between... mehr

    Standort:
    Staats- und Universitätsbibliothek Bremen
    Fernleihe:
    keine Fernleihe

    Standort:
    ZBW - Leibniz-Informationszentrum Wirtschaft, Standort Kiel
    Signatur:
    DS 86 (2013,35)
    Fernleihe:
    keine Fernleihe

     

    Informal care has drawn much attention among scholars and policymakers as it concerns an essential but hard to evaluate resource of welfare. Albeit several studies addressed the monetary value of informal care, differences in the relationship between caregivers and recipients have often been ignored. We report on a profound and formerly unobserved distinction between care in the household and non-household care for a family member or in a voluntary framework. According to our results caregivers within the household perceive care as a burden and a positive shadow price arises. By contrast in the family but non-household context - and especially in the voluntary case - care is (at least partly) understood as an enriching experience which extends well-being and leads to negative shadow prices. This distinction calls a marketized view of informal care into question and may contribute to explaining the limitations of monetary incentive policies to encourage informal care.

     
    Export in Literaturverwaltung   RIS-Format
      BibTeX-Format
    Hinweise zum Inhalt
    Quelle: Verbundkataloge
    Sprache: Englisch
    Medientyp: Buch (Monographie)
    Format: Online
    Weitere Identifier:
    hdl: 10419/93219
    Auflage/Ausgabe: Rev.
    Schriftenreihe: SFB 649 discussion paper ; 2013-035
    Umfang: Online-Ressource (31 S.)