scholarly journals Recommending Datasets for Scientific Problem Descriptions

2021 ◽  
Author(s):  
Michael Färber ◽  
Ann-Kathrin Leisinger
Keyword(s):  
2008 ◽  
Vol 67 (2) ◽  
pp. 71-83 ◽  
Author(s):  
Yolanda A. Métrailler ◽  
Ester Reijnen ◽  
Cornelia Kneser ◽  
Klaus Opwis

This study compared individuals with pairs in a scientific problem-solving task. Participants interacted with a virtual psychological laboratory called Virtue to reason about a visual search theory. To this end, they created hypotheses, designed experiments, and analyzed and interpreted the results of their experiments in order to discover which of five possible factors affected the visual search process. Before and after their interaction with Virtue, participants took a test measuring theoretical and methodological knowledge. In addition, process data reflecting participants’ experimental activities and verbal data were collected. The results showed a significant but equal increase in knowledge for both groups. We found differences between individuals and pairs in the evaluation of hypotheses in the process data, and in descriptive and explanatory statements in the verbal data. Interacting with Virtue helped all students improve their domain-specific and domain-general psychological knowledge.


Author(s):  
E.A. Skvortsov ◽  
◽  
A.S. Gusev ◽  

The article discusses the issues of territorial patterns in the implementation of precision farming technologies, which are insufficiently studied and constitute a significant scientific problem. The purpose of the study is to identify the territorial patterns of the introduction of precision farming technologies in conjunction with the indicators of agricultural development in the regions. The number of applied precision farming technologies was clarified, 37 regions took part in the study, 24 of them provided information on the application of these technologies. The results of correlation of regional development indicators (12 indicators in three blocks) and the amount of equipment with precision farming elements are presented. The greatest positive correlation is observed between the introduction of precision farming technologies and the agricultural production index at comparable prices (0.51) and the level of subsidies (0.37). The greatest negative correlation is observed between the introduction of these technologies and the change in the registered unemployment rate (-0.3). Based on the results obtained, it can be assumed that in regions with high values of agricultural production growth and subsidies, precision farming technologies will be most intensively introduced.


2019 ◽  
pp. 143-158
Author(s):  
V. E. Bakhareva ◽  
I. V. Nikitina ◽  
A. A. Churikova

The article is devoted to the urgent scientific problem of creation and introduction in shipbuilding of high-strength, water-resistant dielectric glass-reinforced hot pressed plastics on the basis of bi- and polyfunctional epoxy-amine binders and glass fabrics from alkali, quartz and silica glass.


2021 ◽  
Vol 2021 (8) ◽  
Author(s):  
W. Zha ◽  
Z. Tang

Abstract The higher-order quantum electrodynamics (QED) effect for vacuum pair production has been searched without success since 1954. In this paper, we show that the combined world-wide data of lepton pair vacuum production is about 20% smaller than the latest lowest order QED calculation with a 5.2 sigma-level of significance and is consistent with the corresponding higher-order QED result. We claim the discovery of higher-order effect for the QED pair production, which settles the dust of previous debates for several decades. The verification of higher-order QED effect is a fundamental scientific problem, which is an important milestone towards the nonperturbative and nonlinear regime of QED vacuum.


Author(s):  
Volodymyr Zaichenko ◽  
◽  
Volodymyr Popov ◽  

The purpose of the article is to consider the modern scientific discourse on agricultural lending in Naddnieper Ukraine in the second half of the 19th and early 20th centuries and to identify promising areas for further research on this issue. The authors used empirical and theoretical methods of scientific research in particular methods of analysis and synthesis, the method of scientific abstraction, and others characteristic methods of research on economic history to achieve this goal and implement the corresponding research tasks. In recent years, a body of diverse scientific research of historians, economists and lawyers has appeared in Ukraine in which these problems are considered. These works differ both in the depth of study of the problem of agricultural lending and in the range of studied issues. The entire body of works of modern Ukrainian scientists, which forms the modern scientific discourse on the history of agricultural lending in Naddnieper Ukraine in the second half of the 19th - early 20th century, consists of three groups including in particular : 1) research, which are devoted to outstanding economists and theorists of lending of the 19th - early 20th century; 2) works on the history of the Peasant and Noble banks, branches and offices of which operated on the territory of the Ukrainian governorates; 3) research of cooperative crediting. We are obliged to note that despite a significant amount of scientific research on the history of lending (including agricultural lending) in Naddnieper Ukraine in the second half of the 19th and beginning of the 20th century, today prevail works devoted only to certain aspects of this complex and important scientific problem, without proper cooperation between representatives of various branches of knowledge. In the authors' view, synectics that is scientific cooperation of representatives of various specialties: economists, historians and lawyers, should become promising in studying the history of agricultural lending in Naddnieper Ukraine in the second half of the 19th and early 20th centuries. It allows to solve such a complex scientific problem comprehensively and considering the economic component (determination of the most optimal scientifically grounded lending methods) and the historical as well as anthropological approach and the study of the legal regulation of credit relations. In our opinion, it is exactly the kind of approach, that allows not only to study the problem of the history of agricultural lending in Naddnieper Ukraine in the second half of the 19th and early 20th century comprehensively, but also to offer modern lenders a mechanism for developing balanced and affordable credit products that will stimulate the development of the agricultural sector and the economy of Ukraine as a whole.


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