How strongly does statistical reasoning influence knowledge and acceptance of evolution?     

Daniela Fiedler  Gena C. Sbeglia  Ross H. Nehm  Ute Harms 《科学教学研究杂志》2019,56(9):1183-1206

A large body of research has examined students' conceptions of evolution and their relationships to acceptance of evolution. Proficiency in statistical and probabilistic reasoning has long been considered to be an essential feature of evolutionary reasoning, yet almost no empirical work has explored these putative connections. The RaPro instruments have recently been developed to measure statistical reasoning in the contexts of mathematics (RaProMath) and evolution (RaProEvo). Our study provides additional validation of these instruments using Rasch analysis and quantifies the contribution of statistical reasoning to both understanding and accepting evolution. We recruited a large sample (N = 564) of undergraduate students enrolled in an introductory biology course at a large public research university in the United States. Students completed a suite of published instruments that assessed statistical reasoning, evolutionary understanding, and evolutionary acceptance. Our findings indicate that validity inferences derived from RaPro scores generalized to the new sample, and that proficiency in statistical reasoning explained 28% of the variance in evolutionary knowledge and 19% of the variation in evolutionary acceptance. The inclusion of demographic variables into the model significantly increased the explained variance in acceptance. Notably, the variance in evolution acceptance explained by statistical reasoning was comparable to that of thinking dispositions or evolutionary knowledge reported in the literature. This work provides the first large-scale evidence of the role of statistical reasoning in evolutionary knowledge and acceptance and motivates future work to explore how statistical literacy should be integrated into evolution education efforts.  相似文献   

Knowledge-intensity as an organisational characteristic     

Jonna Käpylä  Harri Laihonen  Antti Lönnqvist  Daniela Carlucci 《知识管理研究与实践》2011,9(4):315-326

The sector of knowledge-intensive business services (KIBS) has a central role in modern economies. However, there are no explicit and generally acknowledged criteria for characterising KIBS or other knowledge-intensive organisations. In addition, the concept of knowledge-intensity has no significant managerial use. This paper aims to widen the existing understanding about the concept of knowledge-intensity and take a step towards its operational application and managerial usefulness. Methodologically, two steps are carried out. First, a conceptual study based on intellectual capital literature and literature on knowledge-intensive firms is carried out. Second, an interview study (n=8) is carried out to empirically examine the role of knowledge assets in selected KIBS organisations. This paper contributes by tackling the vagueness of the concept of knowledge-intensity: the paper demonstrates that there are different types of ‘knowledge-intensity profiles’ among KIBS companies and that knowledge assets can be used as an analytical framework to identify the sources of value creation.  相似文献   

Staying the distance: students’ perceptions of enablers of transition to higher education     

Angela Bowles  Ruth McPhail  Daniela Rosenstreich  Alexandra Dobson 《高等教育研究与发展》2014,33(2):212-225

Students’ perceptions during their first semester at university may be critical in the decision to continue or discontinue studies. In this study we consider students’ perceptions of what factors enable successful transition to university. Using qualitative research, students’ perceptions are obtained by in-depth interviews and focus groups that capture the first- and second-order perspectives of existing students at the end of first-year studies. Interview and focus-group themes are used to develop an 80-item questionnaire that is then used to collect data from first-year students (n?=?771) at an Australian university. Key findings from the research are the identification of seven enabling factors that fall into two main groups, student-centred and university-led. Identifying enablers of transition provides universities with the opportunity to assist students in the successful transition to higher education.  相似文献   

Incorporation of Caprylic Acid into a Single Cell Oil Rich in Docosahexaenoic Acid for the Production of Specialty Lipids     

Daniela Kanno Mathias  Jacqueline Piazentin Costa  Carolina Rodrigues Calvo  Roberta Claro da Silva  Attilio Converti  Nadia Segura  Ivn Jachmanin  Luiz Antonio Gioielli  Juliana Neves Rodrigues Ract 《Food Technology and Biotechnology》2020,58(4):411

  相似文献   

The public response to innovative strategies for the control of biodeterioration in archaeological hypogea     

Patrizia Albertano  Daniela Pacchiani  Enrico Capucci 《Journal of Cultural Heritage》2004,5(4):399-407

Between April and September 2003, 1500 visitors of the Catacomb of St. Callistus participated to a scientific research by filling in a questionnaire to express their opinion about a new illumination system experimentally set up in the Ocean’s Cubiculum. Their answers were statistically evaluated and represented the first public opinions on this archaeological site, including their knowledge of conservation problems and their positive attitude towards the use of new strategies for the preservation of this monument.  相似文献   

Developing hypermedia with a rapid prototyping approach: a case study     

Laura Helena Porras  Daniela Giodano 《British journal of educational technology : journal of the Council for Educational Technology》1995,26(1):59-61

  相似文献   

Funding incentives, collaborative dynamics and scientific productivity: Evidence from the EU framework program   总被引：1，自引：1，他引：0  

Daniela Defazio  Andy Lockett  Mike Wright 《Research Policy》2009,38(2):293-170

In this paper we examine how incentives for collaboration shape collaborative behavior and researcher productivity in the context of EU-funded research networks. EU-funded research networks require researchers to collaborate as a condition for securing research funding. The presence of research funding, therefore, may influence collaborative behavior. Our approach involves isolating the effects of funding, collaboration and previous collaborations (prior to funding) on research output, and examining how the pattern of collaboration affects research productivity over time. Employing a panel of 294 researchers in 39 EU research networks over a 15-year period we find that while the impact of funding on productivity is generally positive the overall impact of collaboration within the funded networks is weak. When we delineate between pre-, during- and post-funding periods, however, we find some important differences. During the period of funding, collaboration did not lead to an increase in research production. In the post-funding period we find that although the number of collaborations decreases within the network, the impact of collaboration on productivity is positive and significant. Our findings suggest that collaborations formed to capitalize on funding opportunities, while not effective in enhancing researcher productivity in the short run, may be an important promoter of effective collaborations in the longer run.  相似文献   

Intellectual capital management in practice: assessment of implementation and outcomes     

Antti Lönnqvist  Virpi Sillanpää  Daniela Carlucci 《知识管理研究与实践》2009,7(4):308-316

In recent decades, a huge variety of models for managing intellectual capital (IC) have been generated. However, understanding how IC management (ICM) models operate in practice and the issues that may be encountered when they are implemented remain a challenging issue. This is because there seems to be a significant gap between the enthusiastic development of ICM models in theory and the application of these models in companies. Therefore, more practically grounded research needs to be carried out. Reporting on action research projects and an interview study, this paper enriches the existing theoretical and framework-oriented IC literature by examining empirically the implementation of ICM projects and their outcomes in six Finnish companies. The findings of the paper include the challenges and success factors affecting the development of ICM projects, likewise the related outcomes and benefits. This provides useful insights for applying ICM to practice.  相似文献   

An exploration into inquiry-based learning by a multidisciplinary group of higher education faculty     

Daniela B. Friedman  Tena B. Crews  Juan M. Caicedo  John C. Besley  Justin Weinberg  Miriam L. Freeman 《Higher Education》2010,59(6):765-783

  相似文献   

Diagnostic investigations and statistical validation of EDXRF mapping of the burial monument of Pope Sixtus IV by Antonio Pollaiolo (1493) in the Vatican     

Giovanni E. Gigante  Stefano Ridolfi  Daniela Ferro 《Journal of Cultural Heritage》2012,13(3):345-351

It has become a common practice to include diagnostics and archaeometric studies during a masterpiece restoration. The advantages and limits of this approach are now topic of discussion in the community of researchers that is growing up quickly. The bronze burial monument of Pope Sixtus IV (1471–84) by Antonio del Pollaiolo, now in the Treasure Museum in the Vatican was intended to be located at the center of a chapel, this explains its apparent asymmetry: lack of height and large base. The restoration of the burial monument started in May 2007, it was carried out by first fulfilling a series of non-invasive analyses using a transportable EDXRF to map the composition of the alloy and evaluate the diagnostic capabilities for deterioration processes of the bronze surface. As a consequence of the first non-invasive diagnostic campaign, a second campaign of micro invasive tests was planned and carried out. The samples were analysed with SEM-EDS and XRF techniques. In this article some of the results of the EDXRF tests will be shown together with the procedures set up to maximize the diagnostic information obtained and minimize the need of microsampling from the artefact. The results and the statistical analysis of data show that a straightforward planning of the measurements can give several, sometimes unexpected, results in the definition of the state of conservation of the monument and also from an archaeometric point of view. With a high amount of data, the use of statistical analysis is necessary, for example in our case, the analysis of the variance confirmed the hypothesis of the use of different alloys for the elements of the panels.  相似文献