Using Hands-On and Virtual Laboratories Alone or Together―Which Works Better for Acquiring Knowledge and Skills?     

Kapici  Hasan Ozgur  Akcay  Hakan  de Jong  Ton 《Journal of Science Education and Technology》2019,28(3):231-250

Journal of Science Education and Technology - Although hands-on laboratory experiments are traditionally used in schools, virtual laboratories have entered today’s classrooms, due to their...  相似文献   

Correlation between mean platelet volume and B-type natriuretic peptide concentration in emergency patients with heart failure     

Yasemin U Budak  Ka?an Huysal  Hakan Demirci 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2015,25(1):97-102

Background

In heart failure patients, mean platelet volume (MPV) may reflect increased platelet activation or increased numbers of large, hyper-aggregable platelets. B-type natriuretic peptide (BNP) concentration in blood is a sensitive and specific marker of heart failure, correlating with the severity and prognosis of illness, in patients presenting with acute dyspnea to the emergency department. This study evaluated the correlation between BNP concentration and MPV.

Material and methods

Data were collected from 319 patients admitted to the emergency department of a cardiology hospital from January–July 2014. EDTA blood samples drawn at admission were analyzed using automated hematology system, and BNP concentration was measured using a fluorescence immunoassay.

Results

The study included 190 patients with and 129 without acute heart failure (AHF). These groups had BNP concentration of 200-5000 ng/L and 5-98 ng/L, respectively. MPV levels were significantly higher in the AHF group (P < 0.001). BNP concentrations were positively correlated with MPV (r = 0.41, P < 0.001) and neutrophil / lymphocyte ratio (r = 0.38, P < 0.001).

Conclusion

Increased MPV values correlate with BNP concentration, an indicator of HF severity and clinical status, in patients with AHF admitted to the emergency department.Key words: natriuretic peptide, brain; heart failure; platelet; mean platelet volume  相似文献   

Guidelines for standard photography in gross and clinical anatomy     

Barut C  Ertilav H 《Anatomical sciences education》2011,4(6):348-356

Photography has a widespread usage in medicine and anatomy. In this review, authors focused on the usage of photography in gross and clinical anatomy. Photography in gross and clinical anatomy is not only essential for accurate documentation of morphological findings but also important in sharing knowledge and experience. Photographs of cadavers are supposed to demonstrate the required information clearly. Thus, photographs should be taken with certain techniques in order to obtain high quality and standardization. Camera, lens, lighting, background, and certain photographic techniques are among the factors to achieve precise images. A set of suggested guidelines for accomplishing these standards are given for anatomists.  相似文献   

Selecting students for medical school: What predicts success during basic science studies? A cognitive approach   总被引：1，自引：0，他引：1  

Sari Lindblom-Ylänne  Kirsti Lonka  Esko Leskinen 《Higher Education》1996,31(4):507-527

This study focuses on differences between multiple-choice science tests and a learning-from-text (LFT) test, and how these tests predict success in basic medical studies. The subjects (N = 503) were applicants to the Helsinki University Medical Faculty. All of them had to take an entrance examination in order to be considered for admission to a 6-year study programme combining medical school and graduate studies. The entrance examination consisted of three traditional multiple-choice science tests and one LFT test, the latter designed to measure deep-level processing of text. A follow-up study was conducted in order to see how the different tasks were related to the grades and pace of studying of those who were accepted onto the programme.As hypothesized, there were very high correlations among the three multiple-choice tests, but no correlations between the LFT subtasks and the multiple-choice tests. LISREL analyses showed that the LFT Synthesis Task, designed to measure the ability to pull together the essentials of a text, was the best predictor of academic progress during basic science studies.  相似文献   

Pre-service teachers’ acceptance of mobile-technology-supported learning activities     

Islamoglu  Hakan  Kabakci Yurdakul  Isil  Ursavas  Omer Faruk 《Educational technology research and development : ETR & D》2021,69(2):1025-1054

The purpose of this study was to develop a mobile learning acceptance model for pre-service teachers and to examine the relationships among technology acceptance factors. The literature on mobile learning acceptance lacks studies on pre-service teachers and studies that include concrete mobile learning scenarios. To overcome these problems, we have developed and implemented a mobile-technology-enabled information technology course. The data collection and analysis were conducted in two separate studies. First, we developed a mobile learning acceptance scale and applied confirmatory factor analysis with 408 participants. The final instrument included 28 items measuring eight technology acceptance factors, namely behavioral intention, attitude towards use, perceived usefulness, perceived ease of use, social influence, facilitating conditions, self-efficacy, and anxiety. After this, we collected a new set of data from 316 participants to examine the relationships among the factors using structural equation modeling. In both studies, we investigated the respective models’ invariance across gender and discipline groups, and both models fulfilled invariance requirements. The results indicated that perceived ease of use and social influence have direct effects on behavioral intention, whereas self-efficacy has an indirect effect. Depending on the group, the explained variance of behavioral intention ranged between 18.1% and 60.6%.

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Managing for Serendipity: Exploring the Organizational Prerequisites for Emergent Creativity     

Nando Malmelin  Sari Virta 《媒体管理杂志》2017,19(3):222-239

In this article we explore the conditions for creative work in media organizations from the viewpoint of serendipity and the management of serendipity. Our study contributes to the field of media management research by theorizing change and creativity within the framework of organizational serendipity. Based on an analysis of empirical data collected with the diary method in a media organization, the article also discusses the rationale of managing for serendipity in creative media organizations from strategic, structural, and cultural viewpoints. We argue that the management of organizational serendipity should be aimed at managing for serendipity, not managing serendipity as such. In practice, this means that serendipity management should be understood as creating suitable conditions for serendipitous creative processes and facilitating creative work, motivation, and collaboration in the organization.  相似文献   

EXPLORING ALTERNATIVE WAYS OF ASSESSING PRIOR KNOWLEDGE, ITS COMPONENTS AND THEIR RELATION TO STUDENT ACHIEVEMENT: A MATHEMATICS BASED CASE STUDY     

Telle  Anne  Sari 《Studies in Educational Evaluation》2007,33(3-4):320-337

This study investigates how different types of prior knowledge influence student achievement and how different assessment measures influence the observed effect of prior knowledge. We introduce a model of prior knowledge that distinguishes between different types of prior knowledge and uses different assessment measures to assess different types of knowledge. The sample consists of 202 mathematics students who completed the prior knowledge test during the first lesson. The student achievement was measured by the final grade on the course. The results indicate that the type of prior knowledge makes a difference: The measures assessing procedural knowledge predicted the final grades best whereas measures assessing declarative knowledge did not predict final grades. Additionally, previous study success was the best predictor of student achievement. These results are discussed in relation to assessment measures and their implications for practice.  相似文献   

Making learning fun: Quest Atlantis, a game without guns   总被引：18，自引：0，他引：18  

Sasha Barab  Michael Thomas  Tyler Dodge  Robert Carteaux  Hakan Tuzun 《Educational technology research and development : ETR & D》2005,53(1):86-107

This article describes the Quest Atlantis (QA) project, a learning and teaching project that employs a multiuser, virtual environment to immerse children, ages 9–12, in educational tasks. QA combines strategies used in commercial gaming environments with lessons from educational research on learning and motivation. It allows users at participating elementary schools and after-school centers to travel through virtual spaces to perform educational activities, talk with other users and mentors, and build virtual personae. Our work has involved an agenda and process that may be called socially-responsive design, which involves building sociotechnical structures that engage with and potentially transform individuals and their contexts of participation. This work sits at the intersection of education, entertainment, and social commitment and suggests an expansive focus for instructional designers. The focus is on engaging classroom culture and relevant aspects of student life to inspire participation consistent with social commitments and educational goals interpreted locally. This research was supported in part by a CAREER Grant from the National Science Foundation, REC-9980081 and by the National Science Foundation Grant #0092831.  相似文献   

Allow us to introduce: Alicia Rojas     

Sari M. Pascoe  Sheryl Narahara 《Performance Improvement》2002,41(1):8-10

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Students' experiences concerning course workload and factors enhancing and impeding their learning – a useful resource for quality enhancement in teaching and curriculum planning     

Mirja Ruohoniemi  Sari Lindblom‐Ylänne 《International Journal for Academic Development》2013,18(1):69-81

The aim of the study is to deepen our understanding of factors which students experience as important in learning, in order to improve the quality of teaching and curriculum planning. A total of 132 veterinary students participated in the study by answering a questionnaire containing open‐ended questions. Most of the comments on factors enhancing learning were associated with teaching practices. Factors related to the planning of teaching, including curriculum and course overload, were commonly mentioned as impeding learning. The students rarely commented on their own actions. The results have been widely implemented in quality enhancement procedures at the faculty, such as curriculum planning and reform, planning of individual courses, improving teaching and assessment practices and arranging support for students' reflection.

L'objectif de cette recherche est d'approfondir notre compréhension des facteurs qui sont important en matière d'expérience d'apprentissage des étudiants, de façon à améliorer la qualité de l'enseignement et la planification curriculaire. Au total, 132 étudiants en sciences vétérinaires ont participé à la recherche en répondant à un questionnaire contenant des questions ouvertes. La plupart des commentaires portant sur les facteurs facilitant l'apprentissage étaient associés aux pratiques d'enseignement. Les facteurs reliés à la planification de l'enseignement, tels quel la surcharge au niveau du curriculum ou du cours, étaient communément mentionnés comme nuisant à l'apprentissage. Les étudiants ont rarement fourni des commentaires au sujet de leurs propres actions. Les résultats ont été largement utilisés dans le cadre de procédures d'amélioration de la qualité au niveau de la faculté, entre autres en ce qui a trait à la réforme et la planification curriculaires, à la planification des cours individuels, à l'amélioration des pratiques d'enseignement et d'évaluation, et aux mesures visant à soutenir la réflexion des étudiants.  相似文献