Virtual laboratory—Using a hand movement recognition system to improve the quality of chemical education     

Robert Wolski  Piotr Jagodziński 《British journal of educational technology : journal of the Council for Educational Technology》2019,50(1):218-231

The rapid development of information and communication technologies has enabled the development of interfaces, which allow the recognition of the gestures and movements of the user. These interfaces, due to their affordable prices, are available to a wide range of users. They are called natural user interfaces (NUI). NUI are commonly used in game consoles and electronic devices, such as smartphones and tablets. We used the Kinect sensor from Microsoft in our studies to identify the movements and gestures of the user. This interface was used by us in teaching Chemistry in a Middle School and High School by developing a virtual chemical laboratory, which is based on a system of hand movements. We have analyzed the gestures and movements of the virtual chemical laboratory user to determine how they raise the effectiveness in chemical education. The results show how much better students work with a virtual laboratory, when studied by us in chemical areas, that concerned remembering information, understanding information, applying their experience in situations familiar to them from school and in solving chemical problems.  相似文献   

Sci‐Hub: The new and ultimate disruptor? View from the front     

David Nicholas  Chrifa Boukacem‐Zeghmouri  Jie Xu  Eti Herman  David Clark  Abdullah Abrizah  Blanca Rodríguez‐Bravo  Marzena wigo&#x; 《Learned Publishing》2019,32(2):147-153

The Harbinger project was a 3‐year‐long international study of the changing attitudes and behaviours of early career researchers (ECRs). One of the aims of the project was to discover if ECRs were adopting disrupting platforms that, legitimately or illegitimately, promote openness and sharing. It has been alleged that such an adoption appeals to them as Millennials. More than 100 ECRs from seven countries were questioned annually, and questions about Sc‐Hub were raised as part of discussions about discovery and access. Interview data were supplemented by desk research and Google Trends statistics. It was found that Sci‐Hub use was increasing and that a quarter of the ECRs now use it, with French ECRs being the biggest users. However, Sci‐Hub is making little headway with ECRs from the UK, USA, Malaysia, and China, although in China's case, this can be explained by it being banned and the country having its own equivalent, www.91lib.com . Sci‐Hub is used as much for convenience as necessity; use is not connected to the strength of library provision and and it has been suggested that it represents a bigger threat to publishers than ResearchGate, whose star might be waning.  相似文献   

The impact of the pandemic on early career researchers' work-life and scholarly communications: A quantitative aerial analysis     

David Nicholas  Eti Herman  David Clark  Cherifa Boukacem-Zeghmouri  Blanca Rodríguez-Bravo  Abdullah Abrizah  Anthony Watkinson  David Sims  Marzena 'Świgoń  Jie Xu  Galina Serbina  Hamid R. Jamali  Carol Tenopir  Suzie Allard 《Learned Publishing》2023,36(2):128-140

After two-years of repeat interviewing early career sciences/social sciences researchers from around the world about their work life and scholarly communications in pandemic-times, the Harbingers-2 project is in a position to release quantitative data on the pandemic's overall impact. The data comes from around 50 questions asked in the third and final round of interviews with 147 early career researchers (ECRs), which had a codifiable element to them (such as yes, no, do not know). The 19 scholarly topics covered include: pandemic-related research; research funding; changes to the workplace/working from home; pandemic-incurred stress and anxiety; teaching; employment security; career progression; mentoring; assessment (including metrics); collaboration; searching/finding information; ethics; networking; informal communication; publishing; sharing; pre-prints; outreach; and scholarly transformations. The main findings are that in six broad aspects of ECRs' work-life and scholarly behaviour, more than 50% of ECRs were impacted by the pandemic, with remote teaching having the greatest impact. By way of comparison, in another six aspects there was little change, least of all when it came to sharing activities. Among the countries studied, Malaysia stood out as being the most impacted, and of the disciplines it was the medical sciences and the soft social sciences most impacted.  相似文献   

Digital competences of residents in Kuyavian-Pomeranian Voivodeship in the light of the polish training project “E-active”     

Kowalska-Chrzanowska  Małgorzata  Krysiński  Przemysław  Karwowski  Marcin Paweł 《Education and Information Technologies》2021,26(3):3427-3444

Education and Information Technologies - The purpose of the article is to describe the trainings implemented as part of the project “E-Active Residents of the Kuyavian-Pomeranian and...  相似文献   

The Ethos of Science in Contemporary Poland     

Bieliński  Jacek  Tomczyńska  Aldona 《Minerva》2019,57(2):151-173

Modern science is moving away from Michael Polanyi’s vision of ‘the Republic of Science’ and gradually becoming subordinate to political and economic social institutions. This process is accompanied by changes in the normative structure of science. Poland provides an interesting case for empirical study of the scientific ethos mostly because in a relatively short time it experienced a significant reform of the science system, especially in terms of evaluating and financing scientific work. In this paper we examine whether different sets of values and norms are embedded into the normative structure of science in contemporary Poland. The results of a representative survey conducted among 801 researchers were examined with the use of confirmatory factor analysis and fuzzy clustering. The statistical analysis revealed a great complexity in the normative structure of science that goes beyond the expectations formulated on the basis of the theories reviewed. We identified three distinctive groups of researchers, guided by different sets of values and norms in their professional conduct (academic science, post-academic science and the industrial science) and a cluster of researchers with an unidentified system of principles. We argue that the complexity of the normative structure of science should be taken into account in the decision-making regarding any future reforms of the science system.

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Compressed sensing for real measurements of quaternion signals     

Agnieszka Badeńska  Łukasz Błaszczyk 《Journal of The Franklin Institute》2017,354(13):5753-5769

The paper concerns compressed sensing methods in the quaternion algebra. We prove that it is possible to uniquely reconstruct – by ?₁ norm minimization – a sparse quaternion signal from a limited number of its real linear measurements, provided the measurement matrix satisfies so-called restricted isometry property with a sufficiently small constant. We also provide error estimates for the approximated reconstruction of a non-sparse quaternion signal from noisy and noiseless data.  相似文献   

Arguing in Portugal: A cross-cultural analysis     

Marcin Lewiński  Dale Hample  João Sàágua  Dima Mohammed 《Journal of International and Intercultural Communication》2018,11(3):233-253

We report data on Portuguese understandings of interpersonal arguing, based on a survey conducted in Portugal (N?=?252). Employing concepts and methods developed for studying interpersonal arguing, we report on the levels of argumentativeness, verbal aggressiveness, personalization of conflict, and argument frames. After comparing Portuguese men and women, we compare Portuguese respondents with two groups of US respondents. In contrast to US respondents, Portuguese report to argue more prosocially, cooperatively and civilly, and are more sophisticated in their reflections about arguing. We discuss these results in the context of the Portuguese notion of argumentation (argumentação) and Portuguese culture more broadly.  相似文献   

Are School-Provided Skills Useful at Work? Results of the Wiles Test     

Liwiński  Jacek  Pastore  Francesco 《Research in higher education》2021,62(1):72-97

Research in Higher Education - We test for the signaling hypothesis versus the human capital theory using the Wiles test in a country which has experienced a dramatic increase in the supply of...  相似文献   

The Nutritional Value and Physiological Properties of Diets with Raw and Candida utilis-Fermented Lupin Seeds in Rats     

Ma?gorzata Kasprowicz-Potocka  Anita Zaworska  Andrzej Frankiewicz  W?odzimierz Nowak  Piotr Gulewicz  Zenon Zduńczyk  Jerzy Ju?kiewicz 《Food Technology and Biotechnology》2015,53(3):286-297

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Library anxiety among Polish students: Development and validation of the Polish Library Anxiety Scale     

Marzena wigo&#x; 《Library & information science research》2011,33(2):364-150

The Polish Library Anxiety Scale (P-LAS) was developed and validated using as bases Bostick's Library Anxiety Scale (LAS) and three other scales: Multidimensional LAS (MLAS), Hebrew-LAS (H-LAS), and Kuwait-LAS (K-LAS). P-LAS consists of six components: barriers related to staff, personal affect, technology, library knowledge, library comfort, and resources. The research to develop this instrument took place in two empirical stages. Initial research using P-LAS concluded that about 40% of surveyed Polish students may be affected by some form of library anxiety. The general level of library anxiety among Polish respondents was relatively low.  相似文献