Google Scholar and Web of Science: Examining gender differences in citation coverage across five scientific disciplines     

Jens Peter Andersen  Mathias Wullum Nielsen 《Journal of Informetrics》2018,12(3):950-959

Many studies demonstrate differences in the coverage of citing publications in Google Scholar (GS) and Web of Science (WoS). Here, we examine to what extent citation data from the two databases reflect the scholarly impact of women and men differently. Our conjecture is that WoS carries an indirect gender bias in its selection criteria for citation sources that GS avoids due to criteria that are more inclusive. Using a sample of 1250 U.S. researchers in Sociology, Political Science, Economics, Cardiology and Chemistry, we examine gender differences in the average citation coverage of the two databases. We also calculate database-specific h-indices for all authors in the sample. In repeated simulations of hiring scenarios, we use these indices to examine whether women's appointment rates increase if hiring decisions rely on data from GS in lieu of WoS. We find no systematic gender differences in the citation coverage of the two databases. Further, our results indicate marginal to non-existing effects of database selection on women's success-rates in the simulations. In line with the existing literature, we find the citation coverage in WoS to be largest in Cardiology and Chemistry and smallest in Political Science and Sociology. The concordance between author-based h-indices measured by GS and WoS is largest for Chemistry followed by Cardiology, Political Science, Sociology and Economics.  相似文献   

Erratum to: Metaphysics,prescription and methodological disagreement     

Reutlinger  Alexander  Illari  Phyllis  Hüttemann  Andreas  Frisch  Mathias 《Metascience》2016,25(2):339-339

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Objektorientierter Entwurf eines flexiblen Workflow-Management-Systems     

Mathias Weske  Jens Hündling  Dominik Kuropka und Hilmar Schuschel 《Informatik - Forschung und Entwicklung》1998,13(4):179-195

Zusammenfassung.   Dieser Beitrag enth?lt die wesentlichen konzeptionellen überlegungen zur Entwicklung eines flexiblen Workflow-Management-Systems. Ausgehend von einer Diskussion m?glicher Modellierungsalternativen wird unter Verwendung objektorientierter Modellierungstechniken ein Workflow-Meta-Schema entwickelt, das die relevanten Entit?ten klassifiziert und ihre Beziehungen abbildet. Anhand eines Beispiels werden die getroffenen Entwurfentscheidungen ausführlich begründet. Schlie?lich werden Zust?nde und Zustandsüberg?nge von Workflow-Instanzen beschrieben, und es wird diskutiert, wie dynamische Ver?nderungen von Workflows zur Laufzeit durchgeführt werden k?nnen, um laufende Workflows dynamisch an ver?nderte Umweltbedingungen anzupassen. Eingegangen am 20. Dezember 1997 / Angenommen am 24. Juli 1998  相似文献   

On the heat of vaporization of liquid carbonic acid near its critical point     

E. Mathias 《Journal of The Franklin Institute》1890,129(4):297-300

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Book reviews     

William Mansfield Cooper  June Goodfield-Toulmin  H. C. Perejra  Peter Mathias 《Minerva》1972,10(2):332-347

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Measurement of three-dimensional hand kinematics during swimming with a motion capture system: a feasibility study     

Tony Monnet  Mathias Samson  Anthony Bernard  Laurent David  Patrick Lacouture 《Sports Engineering》2014,17(3):171-181

Current trends in swimming biomechanics are focused on accurate measurements. Nowadays, reliable calibration methods have been proposed to reach an accuracy of about 1 mm on rigid structure. But the question remains about the final accuracy for three-dimensional hand kinematics measurement during the underwater phase of front crawl swimming. Furthermore, most research is based on manual tracking with two or more cameras. In this paper we propose a protocol to acquire three-dimensional hand kinematics when swimming in a specific pool with a motion analysis system behind windows. Results highlight the benefits of using such a system in terms of accuracy and feasibility: the time allowed for post-processing is ten times lower and the quantified improved accuracy is better than with manual tracking.  相似文献   

Non-Locality in Classical Electrodynamics     

Frisch  Mathias 《The British journal for the philosophy of science》2002,53(1):1-19

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An analysis of an integrated approach to cross-cultural trainingAnalisis de un enfoque integral al entrenamineto transculturalUne analyse d'une approche integree a l'environnement transculturel     

William B Gudykunst  Mitchell R Hammer  Richard L Wiseman 《Int J Intercult Relat》1977,1(2):99-110

Various approaches have been used in training people to effectively function in a foreign culture. This paper reviews six approaches that are currently being used in cross-cultural training. The approaches reviewed are: (1) the intellectual approach, (2) the area simulation approach, (3) the self-awareness approach, (4) the culture awareness approach, (5) the behavioral approach, and (6) the interaction approach. The advantages of using an “integrated” approach to cross-cultural training is discussed and research is presented which supports the effectiveness of this approach. The results offer preliminary evidence that an integrated approach to training can improve participants' attitudinal satisfaction with their stay in another culture. Finally, the paper offers suggestions for the future direction of cross-cultural training.  相似文献   

Teaching Multistep Equations with Virtual Manipulatives to Secondary Students with Learning Disabilities          下载免费PDF全文

Rajiv Satsangi  Rachel Hammer  Anya S. Evmenova 《Learning disabilities research & practice》2018,33(2):99-111

Students with learning disabilities often struggle with the academic demands presented in secondary mathematics curricula. To combat these students’ struggles, researchers have studied various pedagogical practices and classroom technologies for teaching standards covered in subjects such as algebra and geometry. However, as the role of computer‐ and tablet‐based technologies in education grows, some areas of study, such as the use of virtual manipulatives, lack exploration. This study sought to assess the benefits of virtual manipulatives to teach secondary students with a learning disability in mathematics how to solve multistep algebraic equations. A multiple baseline design across three participants demonstrated a functional relation between the use of a virtual manipulative balance and teaching students to acquire, maintain, and generalize the skill of solving multistep algebraic equations. Results provide new evidence demonstrating virtual manipulatives as a beneficial age‐appropriate technology to teach higher order mathematical concepts to secondary students with a learning disability.  相似文献   

Developmental trends in eating rates of normal and overweight preschool children.     

R S Drabman  G D Cordua  D Hammer  G J Jarvie  W Horton 《Child development》1979,50(1):211-216

Eating rates (bites per interval) and other meal behaviors (number of chews, sips, talks with a neighbor, and chews per bite) were observed for 30 normal and 30 overweight white preschool children in their school cafeterias. Children were classified according to weight (overweight or normal), age (1 1/2--2 years, 3--4 years, or 5--6 years) and sex. Analysis of variance revealed that overweight preschool children demonstrated a somewhat higher rate of distinctly fewer chews per bite. Boys showed increasing chew rates with increasing age. Talk rates also increased with age but were unrelated to sex or weight status. Sip rates were not significantly associated with age, sex, or weight status. These results support the hypothesis that overweight persons are characterized by an increased eating rate and show that it is apparent even around the time of first self-feeding.  相似文献