排序方式： 共有50条查询结果，搜索用时 171 毫秒
41.
Rizos D Karababa P Sarandakou A Panagiotakis O Haliassos A Makris K Psarra K Bairaktari E Spyropoulou P Nikolou C Galiatsatos N Trakas N Ferderigou A Seferiadis K;Greek National Clinical Chemistry Registration Commission 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2011,21(1):30-37
In Greece, there is no officially organized training in clinical chemistry for scientists. The Greek Society of Clinical Chemistry-Clinical Biochemistry decided to organize an intensive educational program of 18 seminars on clinical chemistry content as it is described in the EC4 Syllabus. The duration of each seminar was about 6 hours and consisted of 6 to 9 lectures. At the end of each seminar there was a voluntary written examination, comprised of 24 multiple choice questions. Successful completion of the Educational program was leading to a Certificate of Competence. Two cycles of the 18 seminars were performed: 1st cycle from October 2003 to December 2005 and 2nd cycle from March 2005 to October 2007. One hundred eighty nine colleagues was the mean attendance per seminar for the seminars of the 1st cycle and 38 colleagues for the seminars of the 2nd cycle. The mean participation to the examination for each seminar was almost 80% for the 1st cycle and 68% for the 2nd cycle. More than 80% of the participants performed Good or Very good in the examination in both cycles. It is estimated that more than 40% of the scientists who practice Clinical Chemistry in Greece, participated to this educational activity. This program is now provided as an e-learning application, and it is open for all scientists who want to follow the discipline of clinical chemistry. 相似文献
42.
Nikolaos Palavitsinis Nikos Manouselis Salvador Sánchez-Alonso 《International Information and Library Review》2017,49(3):176-186
The purpose of this article is to study a broad set of journal papers related to metadata and quality in digital repositories and libraries, and to provide a quantitative analysis of the relevant research. It also aims at identifying open issues and future directions for research. A detailed search was carried out in relevant journals of information science, computer science, and library science; mainly, that allowed us to identify an extensive corpora of relevant work. The identified papers were classified based on an existing framework and a statistical analysis was carried out on the main classifications used within the framework. The analysis of the 702 papers identified, led to a series of statements for the field examined, focusing on the type of research carried out, the research methods deployed, and the research claims made. In addition, the papers were classified based on their target audiences, disciplines, as well as institutional and geographical origins. The article identifies areas in the literature that have not been addressed, as well as areas for future research. It also provides a clear image of the areas already researched, analyzing scientific literature that covers 20 years of repository/library deployment. This article makes an original contribution for researchers, practitioners, and managers of digital repositories and libraries alike as it provides a set of specific recommendations for the metadata and quality in digital repositories and libraries research agenda, along with a thorough analysis and classification of the research carried out so far. 相似文献
43.
Nikolaos Pellas 《Education and Information Technologies》2018,23(2):757-775
The educational potentials and challenges of “flipping” a classroom are today well-documented. However, taking into account the contradictory results, literature on the benefits in using the flipped model as a socially inclusive technology-supported instructional design model is still in its infancy. This study seeks to investigate the perceptions of twenty-six (n = 26) trainee instructional media designers based on the access and use of a flipped instructional model, following an exploratory mixed method research with quantitative and qualitative data that was framed by learning concepts. Findings indicate that the flipped model supported really well exercises facilitating trainees’ participation, particularly those with specific reference to gender, age and web-based open educational resources (OER) level of frequency use. Regular recordings of difficulty with long-time content lectures were perceived as the most effective for flipped instructional model use showing that course design matters for knowledge gain. The study results also confirmed the view of flipped classroom as facilitating model for learning activities with trainees to be actively participated and not being passive receivers of the main instructor’s information or observers of other colleagues’ practices and experiments. In this context, which is defined by severe resource constraints and fear of using web-based transactions or sources among lecturers and trainees, the simplicity and accessibility of a flipped model promises a successful adoption for instructional media technology in Higher education. 相似文献
44.
Nikolaos Pellas 《Interactive Learning Environments》2017,25(3):343-360
The combination of Open Sim and Scratch4OS can be a worthwhile innovation for introductory programming courses, using a Community of Inquiry (CoI) model as a theoretical instructional design framework. This empirical study had a threefold purpose to present: (a) an instructional design framework for the beneficial formalization of a virtual community, by utilizing a CoI model which consisted of 81 high school students and (b) the results of linear correlations to amplify the interrelationships among presence indicators (cognitive, social, and teaching) of a CoI model to learn basic programming concepts via a 3D multi-user game-like environment underpinned by Papert‘s theory of constructionism. The findings indicated that social presence (communication and cohesiveness of a group) had not only a direct correlation with the cognitive presence (learning process for the construction of knowledge), but also had a positive association with teaching presence (organization, planning, and guidance of learning activities), reinforcing them as well. 相似文献
45.
A measure for the assessment of resource use in information services provides an application within the information services area of the long tail concept. The analysis quantifies the long tail concept and is applicable to all libraries and information services, independent of their size and circulation properties. The paradigm of the Lorenz curve and the Gini coefficient from macroeconomics is adapted in the context of information services. The Gini coefficient examines the skewness of the Lorenz curve against an ideal cumulative distribution that is represented by a 45-degree line. In this context, the Lorenz curve depicts the cumulative percentage of collection items versus the number of loans and identifies the different levels of library resource use on the part of users by measuring how close the Gini coefficient is to the unity (i.e., the Gini of the 45-degree line is identified). 相似文献
46.
Alice McIntyre Nikolaos ChatzopoulosAnastasia Politi Julieta Roz 《Teaching and Teacher Education》2007
The focus of this article is the experiences of three undergraduate students who engaged in a participatory action research (PAR) project with a group of preadolescent Latina girls attending a public school in Boston, MA, USA. The aim of the 2-year project was to explore how the girls constructed knowledge about girlhood and other gender-related issues. 相似文献
47.
The study undertakes a systematic literature review of government-provided E-Services for businesses (Government to Business E-Services). The literature review process selects and analyses 331 publications. The research highlights the polydispersity of identified publications, resulting from the fragmentation of disciplines. The primary activities in this research field occur mainly in Europe and Asia. In addition, there is a steady engagement of researchers on G2B E-Services. The overall maturity level of governmental services identified in the literature review is quite satisfactory. The main research topics are E-Procurement, E-Customs, E-Taxes, Interoperability, Process Transformation, Cost and Pricing Issues, Barriers and Key Success Factors, and Assessment of Effectiveness. Case studies and surveys are the most popular research methods. In the future, a deeper analysis of the stakeholders' views, enhancement of planning, development and transformation of G2B E-Services, redesign of back-office processes, and interoperability between different systems should attract research interest. Finally, we expect further analysis of E-Customs and E-Invoices, as these services have significant added value. 相似文献
48.
Vassilios Gourgoulis Alexia Boli Nikolaos Aggeloussis Argyris Toubekis Panagiotis Antoniou Panagiotis Kasimatis 《Journal of sports sciences》2013,31(3):278-289
AbstractThe aim of this study was to examine the influence of leg kick on the pattern, the orientation and the propulsive forces produced by the hand, the efficiency of the arm stroke, the trunk inclination, the inter-arm coordination and the intra-cyclic horizontal velocity variation of the hip in sprint front crawl swimming. Nine female swimmers swam two maximal trials of 25 m front crawl, with and without leg kick. Four camcorders were used to record the underwater movements. Using the legs, the mean swimming velocity increased significantly. On the contrary, the velocity and the orientation of the hand, the magnitude and the direction of the propulsive forces, as well as the Froude efficiency of the arm stroke were not modified. The hip intra-cyclic horizontal velocity variation was also not changed, while the index of coordination decreased significantly. A significant decrease (13%) was also observed in the inclination of the trunk. Thus, the positive effect of leg kick on the swimming speed, besides the obvious direct generation of propulsive forces from the legs, could probably be attributed to the reduction of the body’s inclination, while the generation of the propulsive forces and the efficiency of the arm stroke seem not to be significantly affected. 相似文献
49.
Vasilios?GrammatikopoulosEmail author Nikolaos?Tsigilis Athanasios?Koustelios Yannis?Theodorakis 《International Review of Education/Internationale Zeitschrift für Erziehungswissenschaft/Revue internationale l'éducation》2005,51(5-6):427-438
The aim of this study was to develop an instrument for evaluating how an education program has been implemented. Such evaluation can provide insight into the effectiveness of a program. Examined here was the Olympic Education Program used in Greek schools since 2000. In it, students learn the history of the Olympic games and the importance of exercise for health along with the principles and values of sports and volunteerism. The evaluation instrument underlying this study addressed the following six factors: ‘facilities’, ‘administration’, ‘educational material’, ‘student–teacher relationships’, ‘educational procedures’, and ‘training’. Results indicate that the instrument, while adequate for assessing effectiveness, should be combined with advanced statistical methods. 相似文献
50.
Athanasios Christopoulos Nikolaos Pellas Umar Bin Qushem Mikko-Jussi Laakso 《British journal of educational technology : journal of the Council for Educational Technology》2023,54(4):987-1005
The promise of using immersive technologies in learning has increasingly been attracting researchers' and practitioners' attention. However, relevant empirical works are usually conducted in fully controlled Virtual Reality (VR) laboratories, as opposed to conventional settings. This quasi-experimental study compares the effectiveness of video learning resources to that of stereoscopic 360° VR, as supplements to the traditional instructional approach. The potential of such methods was examined in high school settings, in the context of the ‘Life and Evolution’ module, with participants (n = 70) divided equally into control and experimental groups. As a point of reference (control condition), we considered the adoption of Video Learning Resources, as students are more acquainted with this instructional method. In the intervention approach (experimental condition), students adopted the use of low-end mobile-VR (VeeR Mini VR Goggles). The key findings indicate differences in the learning motivation, confidence and satisfaction, but no statistically significant difference was identified regarding the factual or conceptual knowledge gains. The study offers insights on the potential of the investigated technologies in the subject of secondary school Biology and further provides implications for theory and practice.
Practitioner notes
What is already known about this topic- Researchers' interest over the potential of Virtual Reality on different STEM disciplines is increasing consistently.
- An increasing number of efforts can be identified discussing the integration of multimedia learning resources in the secondary school context.
- Empirical studies on the subject of Biology are focusing on students' academic performance and achievement but not on learning motivation and satisfaction.
- This quasi-experimental study comparatively examines academic performance, with the focus being on learning motivation and satisfaction, across different modalities (stereoscopic 360° Virtual Reality applications-VR, Video Learning Recourses-VLR).
- The findings demonstrate that both instructional methods are sufficient in enhancing students' knowledge acquisition and academic performance.
- The adoption of stereoscopic 360° VR influences students' learning motivation and impacts long-term memory retention.
- Educators are advised to consider the systematic adoption of “immersive” multimedia tools to enhance the subject of Biology as they can greatly encourage scientific inquiry.
- Instructional designers are advised to adopt open educational resources aligned to the curriculum of the local context.
- Educational researchers are advised to integrate stereoscopic 360°-VR solutions in the conventional classroom settings.