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Muammer Çalik Tuncay Özsevgeç Jazlin Ebenezer Hüseyin Artun Zeynel Küçük 《Journal of Science Education and Technology》2014,23(3):412-430
The purpose of this study is to examine the effects of ‘environmental chemistry’ elective course via Technology-Embedded Scientific Inquiry (TESI) model on senior science student teachers’ (SSSTs) conceptions of environmental chemistry concepts/issues, attitudes toward chemistry, and technological pedagogical content knowledge (TPACK) levels. Within one group pre-test–post-test design, the study was conducted with 117 SSSTs (68 females and 49 males—aged 21–23 years) enrolled in an ‘environmental chemistry’ elective course in the spring semester of 2011–2012 academic-years. Instruments for data collection comprised of Environmental Chemistry Conceptual Understanding Questionnaire, TPACK survey, and Chemistry Attitudes and Experiences Questionnaire. Significant increases in the SSSTs’ conceptions of environmental chemistry concepts/issues, attitudes toward chemistry, and TPACK levels are attributed to the SSSTs learning how to use the innovative technologies in the contexts of the ‘environmental chemistry’ elective course and teaching practicum. The study implies that the TESI model may serve a useful purpose in experimental science courses that use the innovative technologies. However, to generalize feasibility of the TESI model, it should be evaluated with SSSTs in diverse learning contexts. 相似文献
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This article analyzes Free Rice within the context of “the rise of the ludic sublime,” where video games are hailed as the solution to highly sophisticated political problems. As part of what we call practices of “philitainment,” Free Rice, we argue, functions within the political domain of what Jodi Dean has termed “communicative capitalism” and therefore both captures resistance and actually solidifies global capitalism. Ultimately, this case study of Free Rice reveals ways in which practices of philitainment signal the proliferation of a convergence between the technological sublime and neoliberal politics through which the disinvestment of the state from social problems is legitimized and reproduced through a reconfiguration of citizenship in terms of techno-consumerism. 相似文献
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Küme T Sişman AR Solak A Tuğlu B Cinkooğlu B Coker C 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2012,22(2):189-201
Introductıon:
We evaluated the effect of different syringe volume, needle size and sample volume on blood gas analysis in syringes washed with heparin.Materials and methods:
In this multi-step experimental study, percent dilution ratios (PDRs) and final heparin concentrations (FHCs) were calculated by gravimetric method for determining the effect of syringe volume (1, 2, 5 and 10 mL), needle size (20, 21, 22, 25 and 26 G) and sample volume (0.5, 1, 2, 5 and 10 mL). The effect of different PDRs and FHCs on blood gas and electrolyte parameters were determined. The erroneous results from nonstandardized sampling were evaluated according to RiliBAK’s TEa.Results:
The increase of PDRs and FHCs was associated with the decrease of syringe volume, the increase of needle size and the decrease of sample volume: from 2.0% and 100 IU/mL in 10 mL-syringe to 7.0% and 351 IU/mL in 1 mL-syringe; from 4.9% and 245 IU/mL in 26G to 7.6% and 380 IU/mL in 20 G with combined 1 mL syringe; from 2.0% and 100 IU/mL in full-filled sample to 34% and 1675 IU/mL in 0.5 mL suctioned sample into 10 mL-syringe. There was no statistical difference in pH; but the percent decreasing in pCO2, K+, iCa2+, iMg2+; the percent increasing in pO2 and Na+ were statistical significance compared to samples full-filled in syringes. The all changes in pH and pO2 were acceptable; but the changes in pCO2, Na+, K+ and iCa2+ were unacceptable according to TEa limits except fullfilled-syringes.Conclusions:
The changes in PDRs and FHCs due nonstandardized sampling in syringe washed with liquid heparin give rise to erroneous test results for pCO2 and electrolytes. 相似文献4.
Funda Eren Merve Ergin Tuncay Esra Firat Oguz Salim Neselioglu Ozcan Erel 《Biochemia medica : ?asopis Hrvatskoga dru?tva medicinskih biokemi?ara / HDMB》2021,31(2)
IntroductionFollowing a pandemic, laboratory medicine is vulnerable to laboratory errors due to the stressful and high workloads. We aimed to examine how laboratory errors may arise from factors, e.g., flexible working order, staff displacement, changes in the number of tests, and samples will reflect on the total test process (TTP) during the pandemic period.Materials and methodsIn 12 months, 6 months before and during the pandemic, laboratory errors were assessed via quality indicators (QIs) related to TTP phases. QIs were grouped as pre-, intra- and postanalytical. The results of QIs were expressed in defect percentages and sigma, evaluated with 3 levels of performance quality: 25th, 50th and 75th percentile values.ResultsWhen the pre- and during pandemic periods were compared, the sigma value of the samples not received was significantly lower in pre-pandemic group than during pandemic group (4.7σ vs. 5.4σ, P = 0.003). The sigma values of samples transported inappropriately and haemolysed samples were significantly higher in pre-pandemic period than during pandemic (5.0σ vs. 4.9σ, 4.3σ vs. 4.1σ; P = 0.046 and P = 0.044, respectively). Sigma value of tests with inappropriate IQC performances was lower during pandemic compared to the pre-pandemic period (3.3σ vs. 3.2σ, P = 0.081). Sigma value of the reports delivered outside the specified time was higher during pandemic than pre-pandemic period (3.0σ vs. 3.1σ, P = 0.030).ConclusionIn all TTP phases, some quality indicators improved while others regressed during the pandemic period. It was observed that preanalytical phase was affected more by the pandemic. 相似文献
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Background: A substantial review study of concept cartoons reports that few studies have indicated their functions. For this reason, the present study illuminates the extent to which concept cartoon-embedded worksheets (through constructivist context) accomplish these functions in conceptual learning.
Purpose: The purpose of the study is to determine the effect of the concept cartoon-embedded worksheets on grade 9 students’ conceptual understanding of Newton’s Laws of Motion.
Sample: Within a quasi-experimental research design with control group, the sample consisted of 102 grade 9 students (aged 15–16 years) enrolled in an Anatolian High School. They were randomly assigned to control (52 students) and experimental groups (50 students).
Design and methods: While the control group followed the existing physics instruction, the experimental one was exposed to the concept cartoon-embedded worksheets. To collect data, two scales (Newton’s Laws of Motion Test –NLMT– and Interview about Instances –IAI) were employed.
Results: The results indicated that the experimental group performed better than did the control group.
Conclusions: It can be deduced that the concept cartoon-embedded worksheets are effective in improving grade 9 students’ conceptual understanding and in replacing their alternative conceptions with scientific ones. 相似文献
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Maarit Mäkelä Bilge Merve Aktaş 《The International Journal of Art & Design Education》2023,42(1):139-154
Learning takes place in various spaces through human and nonhuman interactions. Considering the urgent need for rethinking how humans relate to nature, in this article we present a MA level course in the context of art, craft and design to discuss how learning with the natural environment approach can impact learning experiences. We introduce walking with nature as a creative method that fosters students’ ability to let the environment actively shape their creative events. The encounter with nature-based materials in their different forms and following the material's flow provides students with a foundation for their creative processes. This study proposes that walking can facilitate the entanglement between the student's knowledge and encountered materials, generating an emotional and dialogical relationship with the natural environment that contributes to a holistic learning experience. We propose that such an experience can help in comprehending the importance of the caring actions we need to take and maintain towards the nonhuman world. 相似文献
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ABSTRACTThis paper explores the perspectives of Flemish secondary school principals and coordinating principals on the government-proposed changes and uncovers their experiences with these changes in an in-depth manner. In a school system characterised by school freedom and free school choice, semi-structured interviews with 21 school leaders revealed the significance of school autonomy to create bottom-up solutions to the change-related problems. However, infrastructure, monetary resources, teacher, and parent reactions sometimes proved to be obstacles, jeopardised effective implementation, and affected the leaders’ workload extensively. The results showed the critical roles played by the school principals to satisfy the change-related needs of the staff and motivate them for change. The findings collectively suggest the need for more attention devoted to 1) the human side of the change, 2) greater support provided throughout the process, and 3) a loose connection between politics and change-related decisions. 相似文献
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Büşra Tuncay Özgül Yılmaz-Tüzün Gaye Tuncer Teksoz 《Environmental Education Research》2012,18(4):485-505
This study investigated pre-service science teachers’ (PSTs’) moral reasoning patterns and the factors underlying these reasoning patterns. Local and non-local environmental dilemmas were used to examine moral reasoning patterns. An explanatory design was used with the collection and analysis of quantitative data, which was subsequently refined using qualitative interview data. For the quantitative part of the study, PSTs were asked to comment on four local and non-local environmental dilemmas (i.e. deforestation, e-waste, oil spills, and global warming). The responses were categorized as ecocentric, anthropocentric, or non-environmental reasoning. The findings showed that the participants’ moral reasoning focused on both ecocentric and anthropocentric perspectives, with a few displaying non-environmental reasoning. Concern for environmental problems was related to perceptions of whether the issue was directly related to nature, and was independent of whether the issues were local or non-local. The Moral Decision Making Interview protocol was used in the qualitative part of the study. Analysis revealed that the participants’ moral decisions were based on their resolutions in situational context and their concerns showed variations in their moral reasoning due to different factors like, effect on human life, formal principles, notion of rights, moral emotions, potential harm to others, and popular culture. 相似文献