Children's and adults' knowledge and models of reasoning about the ozone layer and its depletion     

J. K. Mohapatra‡ 《International Journal of Science Education》2013,35(1):117-123

A model giving the main domains of ‘process knowledge’ in solving problems in physics is proposed. In the framework of this model the strategies and results of using thinking‐aloud experiments to obtain the elements of ‘process knowledge’ in the problem‐solving activity in physics are discussed.

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Short lesson plan associated with increased acceptance of evolutionary theory and potential change in three alternate conceptions of macroevolution in undergraduate students     

Abraham JK  Perez KE  Downey N  Herron JC  Meir E 《CBE life sciences education》2012,11(2):152-164

Undergraduates commonly harbor alternate conceptions about evolutionary biology; these alternate conceptions often persist, even after intensive instruction, and may influence acceptance of evolution. We interviewed undergraduates to explore their alternate conceptions about macroevolutionary patterns and designed a 2-h lesson plan to present evidence that life has evolved. We identified three alternate conceptions during our interviews: that newly derived traits would be more widespread in extant species than would be ancestral traits, that evolution proceeds solely by anagenesis, and that lineages must become more complex over time. We also attempted to measure changes in the alternate conceptions and levels of acceptance of evolutionary theory in biology majors and nonmajors after exposure to the lesson plan. The instrument used to assess understanding had flaws, but our results are suggestive of mixed effects: we found a reduction in the first alternate conception, no change in the second, and reinforcement of the third. We found a small, but significant, increase in undergraduate acceptance of evolutionary theory in two trials of the lesson plan (Cohen's d effect sizes of 0.51 and 0.19). These mixed results offer guidance on how to improve the lesson and show the potential of instructional approaches for influencing acceptance of evolution.  相似文献   

Sequential Serum Cytokine Levels of TNF-Alpha,IL-4 and IL-12 are Associated with Prognosis in Plasmodium falciparum Malaria     

P. C. Mohapatra  Anshuman Sarangi  Ashok Kumar Sarangi  R. K. Dalai  Debashis Sahoo 《Indian journal of clinical biochemistry : IJCB》2014,29(3):321-326

We investigated the prognostic role of TNF-alpha, IL-4 and IL-12 in a clinically well defined group of Plasmodium falciparum infected patients (n = 32) sequentially from Day 0 to Day 10 with a 2 day interval along with a control group of 16 healthy volunteers of same range of age and sex. Infection with malaria is often fatal because mitochondria are unable to generate enough ATP to maintain normal cellular function. ATP deficiency arises in malaria due to an inability of mitochondria through the effects of inflammatory cytokines on their function, to utilize available oxygen. In our study TNF-alpha and IL-12 levels were significantly elevated but IL-4 level showed persistent decline in Day 0, but subsequent measurement in Day 2, 4, 6, 8 and 10 showed persistent decline in levels of TNF-alpha and IL-12, an elevation in IL-4 levels which were associated with disease prognosis of the infected patients. These results again provide evidence that cytokines are very much a dominant partner in malaria pathogenesis with a specific prognostic role.  相似文献   

Cultural Persistence,Political Resistance,and Hope in the Community and School-Based Art of a Puerto Rican Diaspora Neighborhood     

Eli Tucker-Raymond  Enid M. Rosario-Ramos  Maria L. Rosario 《Equity & Excellence in Education》2013,46(2):270-286

The authors describe themes of cultural persistence, political resistance, and hope in the art of one Puerto Rican neighborhood in the Midwestern United States. The themes are described across three contexts: community mural art, poetry from students in an alternative high school, and poetry from seventh grade students in a neighborhood middle school. In describing currents of Puerto Rican identity-making, resistance to gentrification, and struggles against local oppression that are evident in all three contexts, the authors argue that as they name their worlds, students commit acts of social justice through their perpetuation of historical and cultural themes situated within a tradition of community activism.  相似文献   

Principals may inflate teacher evaluation scores to achieve important goals     

Jones  Eli  Bergin  Christi  Murphy  Bridget 《Educational Assessment, Evaluation and Accountability》2022,34(1):57-88

Educational Assessment, Evaluation and Accountability - A concerning attribute of teacher evaluations across countries is the systemic leniency of principals during classroom observations. However,...  相似文献   

Sickle Cell Trait Presenting as Chronic Calcific Pancreatitis with Pseudocyst- A Case Report     

Seema Shah  Sunil Jondhale  Rachita Nanda  Suprava Patel  Eli Mohapatra  Anil Kumar Goel 《Indian journal of clinical biochemistry : IJCB》2021,36(2):239

Sickle cell disease is known to cause acute pancreatitis either due to gall stones obstructing the pancreatic duct or by vaso-occlusive mechanism. However chronic pancreatitis is a very rare complication in sickle cell anemia. We report a case of sickle cell trait presenting with chronic pancreatitis with pseudo cyst. USG abdomen and CT abdomen confirmed the diagnosis of chronic calcific pancreatitis with pseudocyst. Etiological work up for other causes did not reveal anything except sickle cell trait. This case represents a rare association between chronic calcific pancreatitis and sickle cell trait.  相似文献   

Artistic Learning in Relation to Young Children’s Chorotopos: An In-Depth Approach to Early Childhood Visual Culture Education     

Eli Trimis  Andri Savva 《Early Childhood Education Journal》2009,36(6):527-539

The paper reports on a study of young children and the nature of their art learning based on the in-depth approach and in the context of chorotopos (space-place, area, landscape, region, village or town). The sample includes 50 children drawn from three classrooms in three early childhood settings in the area of Thessaloniki and Chalkidiki, Greece. Classroom observation notes, audio-taped analysis, photographic material and the artworks of children were used to find out the influences of the programs to young children’s art learning. Findings indicate that artistic activities in relation to their chorotopos and in-depth exploration of materials made children more situated to their own environment and enabled them to understand the potential expressiveness of materials and their inherent meaning. Teachers’ role was decisive in providing special “scaffolding” to further the exploratory process in an interactive environment of learning. The findings highlight the significance of learning in, through and about art by allowing children to experience their personal environment through objects and materials encountered in their chorotopos, to appreciate its richness and to see themselves as part of it.

Andri Savva (Corresponding author)Email:

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Consumer learning for university students: a case for a curriculum     

Sharon Crafford  Eli Bitzer 《高等教育研究与发展》2009,28(4):443-455

This article indicates how the application of a simplified version of the analytical abstraction method (AAM) was used in curriculum development for consumer learning at one higher education institution in South Africa. We used a case study design and qualitative research methodology to generate data through semi‐structured interviews with eight learning facilitators at the Cape Peninsula University of Technology. This data set forms the basis of the reported research. Application of basic‐ and higher‐level analysis resulted in the identification of patterns that confirmed the need for consumer learning and informed the situation analysis with regard to a ‘readiness climate’ at the institution. We also gained insight into aspects that need to be considered during curriculum development for consumer learning as the AAM has proved to be a useful guiding tool in developing a structured explanatory framework for curriculum development. The article concludes with the view that the promotion of consumer learning in university curricula has been under‐researched and that, despite current efforts, university curricula are slow to adopt consumer learning as a critical learning outcome. We suggest several possibilities that might assist in overcoming this inertia.  相似文献   

Building Systems from Scratch: an Exploratory Study of Students Learning About Climate Change     

Gillian Puttick  Eli Tucker-Raymond 《Journal of Science Education and Technology》2018,27(4):306-321

Science and computational practices such as modeling and abstraction are critical to understanding the complex systems that are integral to climate science. Given the demonstrated affordances of game design in supporting such practices, we implemented a free 4-day intensive workshop for middle school girls that focused on using the visual programming environment, Scratch, to design games to teach others about climate change. The experience was carefully constructed so that girls of widely differing levels of experience were able to engage in a cycle of game design. This qualitative study aimed to explore the representational choices the girls made as they took up aspects of climate change systems and modeled them in their games. Evidence points to the ways in which designing games about climate science fostered emergent systems thinking and engagement in modeling practices as learners chose what to represent in their games, grappled with the realism of their respective representations, and modeled interactions among systems components. Given the girls’ levels of programming skill, parts of systems were more tractable to create than others. The educational purpose of the games was important to the girls’ overall design experience, since it influenced their choice of topic, and challenged their emergent understanding of climate change as a systems problem.  相似文献   

Measuring clearance mechanics based on dynamic leg length     

Sam Khamis  Barry Danino  Shlomo Hayek  Eli Carmeli 《Measurement in physical education and exercise science》2018,22(2):145-153

The aim of this study was to quantify clearance mechanics during gait. Seventeen children diagnosed with hemiplegic cerebral palsy underwent a three-dimensional gait analysis evaluation. Dynamic leg lengths were measured from the hip joint center to the heel, to the ankle joint center and to the forefoot throughout the gait cycle. Significant asymmetry was observed during stance, initial and terminal swing phases, where the hemiplegic limb was found shorter by using a paired t-test at 51 sample points (p < .05). The hemiplegic side was restricted in achieving maximal length during terminal swing. The ratio between the maximal dynamic leg length during the stance phase to minimal dynamic leg length during the swing phase was found higher on the non-involved side and lower on the hemiplegic side (p < .05). Quantifying clearance mechanics based on dynamic leg length can provide an additional insight into the analysis of gait patterns and might assist in detecting time of abnormal kinematic deviations.  相似文献