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  1. Article ; Online: On Health Effects of Resveratrol in Wine.

    Haunschild, Robin / Marx, Werner

    International journal of environmental research and public health

    2022  Volume 19, Issue 5

    Abstract: We analyzed 3344 publications concerned with the health-related effects of resveratrol that occurs in wine and grapes. We discovered that publication activity increased until 2010 and decreased slightly afterwards. The most frequent author keywords were ... ...

    Abstract We analyzed 3344 publications concerned with the health-related effects of resveratrol that occurs in wine and grapes. We discovered that publication activity increased until 2010 and decreased slightly afterwards. The most frequent author keywords were classified into six groups: (1) beverage-related keywords, (2) compound-related keywords, (3) disease-related keywords, (4) effect-related keywords, (5) mechanism-related keywords, and (6) broader keywords. By means of reference publication year spectroscopy, we analyzed and discussed the most frequently cited references (i.e., key papers) within the publication set. A rather large portion of the key papers exhibit a deliberative or positive attitude and report on the health effects of resveratrol, although limited data in humans preclude drawing unambiguous conclusions on its health-related benefits. From our analysis, we could not identify specific publications that provide a distinct change of direction of the ongoing scientific discourse. Moderate red wine consumption seems to bear the potential of being health promoting, whereas excessive alcohol consumption can induce liver cirrhosis and cancer.
    MeSH term(s) Beverages ; Humans ; Liver Cirrhosis ; Resveratrol ; Wine
    Chemical Substances Resveratrol (Q369O8926L)
    Language English
    Publishing date 2022-03-06
    Publishing country Switzerland
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph19053110
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Book ; Online: How to measure research performance of single scientists? A proposal for an index based on scientific prizes

    Bornmann, Lutz / Haunschild, Robin

    The Prize Winner Index (PWI)

    2023  

    Abstract: In this study, we propose a new index for measuring excellence in science which is based on collaborations (co-authorship distances) in science. The index is based on the Erd\H{o}s number - a number that was introduced several years ago. We propose to ... ...

    Abstract In this study, we propose a new index for measuring excellence in science which is based on collaborations (co-authorship distances) in science. The index is based on the Erd\H{o}s number - a number that was introduced several years ago. We propose to focus with the new index on laureates of prestigious prizes in a certain field and to measure co-authorship distances between the laureates and other scientists. To exemplify and explain our proposal, we computed the proposed index in the field of quantitative science studies (PWIPM). The Derek de Solla Price Memorial Award (Price Medal, PM) is awarded to outstanding scientists in the field. We tested the convergent validity of the PWIPM. We were interested whether the indicator is related to an established bibliometric indicator: P(top 10%). The results show that the coefficients for the correlation between PWIPM and P(top 10%) are high (in cases when a sufficient number of papers have been considered for a reliable assessment of performance). Therefore, measured by an established indicator for research excellence, the new PWI indicator seems to be convergently valid and, therefore, might be a possible alternative for established (bibliometric) indicators - with a focus on prizes.
    Keywords Computer Science - Digital Libraries ; Physics - Physics and Society
    Subject code 001
    Publishing date 2023-03-31
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  3. Article: Can tweets be used to detect problems early with scientific papers? A case study of three retracted COVID-19/SARS-CoV-2 papers.

    Haunschild, Robin / Bornmann, Lutz

    Scientometrics

    2021  Volume 126, Issue 6, Page(s) 5181–5199

    Abstract: Methodological mistakes, data errors, and scientific misconduct are considered prevalent problems in science that are often difficult to detect. In this study, we explore the potential of using data from Twitter for discovering problems with publications. ...

    Abstract Methodological mistakes, data errors, and scientific misconduct are considered prevalent problems in science that are often difficult to detect. In this study, we explore the potential of using data from Twitter for discovering problems with publications. In this case study, we analyzed tweet texts of three retracted publications about COVID-19 (Coronavirus disease 2019)/SARS-CoV-2 (severe acute respiratory syndrome coronavirus 2) and their retraction notices. We did not find early warning signs in tweet texts regarding one publication, but we did find tweets that casted doubt on the validity of the two other publications shortly after their publication date. An extension of our current work might lead to an early warning system that makes the scientific community aware of problems with certain publications. Other sources, such as blogs or post-publication peer-review sites, could be included in such an early warning system. The methodology proposed in this case study should be validated using larger publication sets that also include a control group, i.e., publications that were not retracted.
    Language English
    Publishing date 2021-04-26
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 435652-4
    ISSN 0138-9130
    ISSN 0138-9130
    DOI 10.1007/s11192-021-03962-7
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 82/706: Show issues

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  4. Book ; Online: Identification of young talented individuals in the natural and life sciences using bibliometric data

    Bornmann, Lutz / Haunschild, Robin

    2022  

    Abstract: Identification of young talented individuals is not an easy task. Citation-based data usually need too long to accrue. In this study, we proposed a method based on bibliometric data for the identification of young talented individuals. Three different ... ...

    Abstract Identification of young talented individuals is not an easy task. Citation-based data usually need too long to accrue. In this study, we proposed a method based on bibliometric data for the identification of young talented individuals. Three different indicators and their combinations were used. An older cohort with their first publication between 1999 and 2003 was used to find the most suitable indicator combination. For the validation step, citation impact on the level of individual papers was used. The best performing indicator combination was applied to the time period 2007-2011 for identifying young talented individuals who published their first paper within this time period. We produced a set of 46,200 potential talented individuals.

    Comment: 7 pages, 3 tables, to be presented at STI 2022
    Keywords Computer Science - Digital Libraries
    Publishing date 2022-06-24
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  5. Book ; Online: Comparison of metadata with relevance for bibliometrics between Microsoft Academic Graph and OpenAlex until 2020

    Scheidsteger, Thomas / Haunschild, Robin

    2022  

    Abstract: Microsoft Academic Graph (MAG) has been studied a lot concerning its suitability for bibliometric evaluations. In May 2021, it was announced that it would retire on December 31, 2021. Soon after that, the non-profit organization OurResearch, aiming at ... ...

    Abstract Microsoft Academic Graph (MAG) has been studied a lot concerning its suitability for bibliometric evaluations. In May 2021, it was announced that it would retire on December 31, 2021. Soon after that, the non-profit organization OurResearch, aiming at providing 'a fully open catalog of the global research system', announced they would preserve and incorporate the last full MAG corpus, only excluding patent data, and to continue and hopefully improve it. After the launch of OpenAlex in January 2022, it is of interest to know if the usefulness of the MAG data is preserved or even improved in OpenAlex. To this end, we compared metadata that are relevant for bibliometric analyses (in particular field and time normalization of citations) of MAG and OpenAlex: - the coverage of documents over the years, - the agreement of bibliographic data, - the numbers of references of each document, - the kind and distribution of document types, - the distribution and relation of subject classifications.

    Comment: 11 pages, 3 figures, 6 tables; submitted to the 26th International Conference on Science, Technology and Innovation Indicators (STI 2022)
    Keywords Computer Science - Digital Libraries
    Subject code 001
    Publishing date 2022-06-28
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  6. Book ; Online: Empirical analysis of recent temporal dynamics of research fields

    Bornmann, Lutz / Haunschild, Robin

    Annual publications in chemistry and related areas as an example

    2022  

    Abstract: Changes in the number of publications in a certain field might reflect the dynamic of scientific progress in this field, since an increase in the number of publications can be interpreted as an increase in the field-specific knowledge. In this paper, we ... ...

    Abstract Changes in the number of publications in a certain field might reflect the dynamic of scientific progress in this field, since an increase in the number of publications can be interpreted as an increase in the field-specific knowledge. In this paper, we present a methodological approach to analyse the dynamics of science on lower aggregation levels, i.e., the level of research fields. Our trend analysis approach is able to uncover very recent trends, and the methods used to study the trends are simple to understand for the possible recipients of the results. In order to demonstrate the trend analysis approach, we focused in this study on the annual number of publications (and patents) in chemistry (and related areas) between 2014 and 2020 identifying those fields in chemistry with the highest dynamics (largest rates of change in publication counts). The study is based on the mono-disciplinary literature database CAplus. Our results reveal that the number of publications in the CAplus database is increasing since many years. Research regarding optical phenomena and electrochemical technologies was found to be among the emerging topics in recent years.
    Keywords Computer Science - Digital Libraries ; Statistics - Methodology
    Subject code 001
    Publishing date 2022-01-12
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  7. Article: Heat waves: a hot topic in climate change research.

    Marx, Werner / Haunschild, Robin / Bornmann, Lutz

    Theoretical and applied climatology

    2021  Volume 146, Issue 1-2, Page(s) 781–800

    Abstract: Research on heat waves (periods of excessively hot weather, which may be accompanied by high humidity) is a newly emerging research topic within the field of climate change research with high relevance for the whole of society. In this study, we analyzed ...

    Abstract Research on heat waves (periods of excessively hot weather, which may be accompanied by high humidity) is a newly emerging research topic within the field of climate change research with high relevance for the whole of society. In this study, we analyzed the rapidly growing scientific literature dealing with heat waves. No summarizing overview has been published on this literature hitherto. We developed a suitable search query to retrieve the relevant literature covered by the Web of Science (WoS) as complete as possible and to exclude irrelevant literature (
    Language English
    Publishing date 2021-09-03
    Publishing country Austria
    Document type Journal Article
    ZDB-ID 1463177-5
    ISSN 1434-4483 ; 0177-798X
    ISSN (online) 1434-4483
    ISSN 0177-798X
    DOI 10.1007/s00704-021-03758-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Article ; Online: Library and Information Science Papers Discussed on Twitter

    Haunschild Robin / Leydesdorff Loet / Bornmann Lutz

    Journal of Data and Information Science, Vol 5, Iss 3, Pp 5-

    A new Network-based Approach for Measuring Public Attention

    2020  Volume 17

    Abstract: In recent years, one can witness a trend in research evaluation to measure the impact on society or attention to research by society (beyond science). We address the following question: can Twitter be meaningfully used for the mapping of public and ... ...

    Abstract In recent years, one can witness a trend in research evaluation to measure the impact on society or attention to research by society (beyond science). We address the following question: can Twitter be meaningfully used for the mapping of public and scientific discourses?
    Keywords altmetrics ; twitter ; news ; hashtags ; author keywords ; Information technology ; T58.5-58.64 ; Electronic computers. Computer science ; QA75.5-76.95
    Language English
    Publishing date 2020-07-01T00:00:00Z
    Publisher Sciendo
    Document type Article ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Book ; Online: Reference Publication Year Spectroscopy (RPYS) in practice

    Haunschild, Robin / Bornmann, Lutz

    A software tutorial

    2021  

    Abstract: In course of the organization of Workshop III entitled "Cited References Analysis Using CRExplorer" at the International Conference of the International Society for Scientometrics and Informetrics (ISSI2021), we have prepared three reference publication ... ...

    Abstract In course of the organization of Workshop III entitled "Cited References Analysis Using CRExplorer" at the International Conference of the International Society for Scientometrics and Informetrics (ISSI2021), we have prepared three reference publication year spectroscopy (RPYS) analyses: (i) papers published in Journal of Informetrics; (ii) papers regarding the topic altmetrics; and (iii) papers published by Ludo Waltman (we selected this researcher since he received the Derek de Solla Price Memorial Medal during the ISSI2021 conference). The first RPYS analysis has been presented live at the workshop and the second and third RPYS analyses have been left to the participants for undertaking after the workshop. Here, we present the results for all three RPYS analyses. The three analyses have shown quite different seminal papers with a few overlaps. Many of the foundational papers in the field of scientometrics (e.g., distributions of publications and citations, citation network and co-citation analyses, and citation analysis with the aim of impact measurement and research evaluation) were retrieved as seminal papers of the papers published in Journal of Informetrics. Mainly papers with discussions of the deficiencies of citation-based impact measurements and comparisons between altmetrics and citations were retrieved as seminal papers of the topic altmetrics. The RPYS analysis of the paper set published by Ludo Waltman mainly retrieved papers about network analyses, citation relations, and citation impact measurement.

    Comment: 29 pages, 6 figures, and 5 tables
    Keywords Computer Science - Digital Libraries
    Subject code 001
    Publishing date 2021-09-02
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Book ; Online: Report on Workshop III "Cited References Analysis Using CRExplorer" at the 18th International Conference of the International Society for Scientometrics and Informetrics (ISSI2021)

    Haunschild, Robin / Bornmann, Lutz

    2021  

    Abstract: We have organized Workshop III entitled "Cited References Analysis Using CRExplorer" at ISSI2021. Here, we report and reflect on this workshop. The aim of this workshop was to bring beginners, practitioners, and experts in cited references analyses ... ...

    Abstract We have organized Workshop III entitled "Cited References Analysis Using CRExplorer" at ISSI2021. Here, we report and reflect on this workshop. The aim of this workshop was to bring beginners, practitioners, and experts in cited references analyses together. A mixture of presentations and an interactive part was intended to provide benefits for all kinds of scientometricians with an interest in cited references analyses.

    Comment: 6 pages, 1 figure
    Keywords Computer Science - Digital Libraries
    Publishing date 2021-08-25
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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