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21.
Naveen Chitkara R. C. Dadoo Sadhna Bansal Kiran Chugh S. K. Aggarwal Harbans Lal 《Indian journal of clinical biochemistry : IJCB》1996,11(2):162-164
Plasma vitamin E levels were estimated in 75 patients each of carcinoma breast and benign breast diseases. Mean plasma vitamin E concentration was found to be significantly reduced in malignancy compared to the controls as well as the non malignant conditions. The decrease in plasma vitamin E in cancer patients was directly related with the TNM stage of cancer. The levels, however, did not vary significantly with respect to histopathology or after 8 days of surgery. 相似文献
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Kiran Chhokar Shweta Dua Neil Taylor Edward Boyes Martin Stanisstreet 《International Journal of Science and Mathematics Education》2011,9(5):1167-1188
A 44-item survey instrument was designed to determine secondary students?? views about how useful various specific actions related to reducing global warming might be, their willingness to undertake these various actions and the extent to which these 2 might be linked. The instrument was administered to students in grades 6??C?10 (n?=?768) from 4 large schools in metropolitan Delhi, India in which the teaching language was English. The findings indicated that this cohort of Indian students exhibited high levels of concern about climate change and strong willingness to act against global warming and in favour of the environment. The findings are tentatively compared with those from 2 similar survey studies conducted in Western contexts (Spain and Australia). 相似文献
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Modeling Web-based library service quality 总被引：1，自引：0，他引：1
Studies of e-service quality have consistently used adaptations of service-quality measurement tools that have been adopted and extended from traditional service-quality frameworks. However, a fresh insight into the investigation of key determinants of Web-based library service quality, with an emphasis on how library customers perceive service quality, has much to offer. Key determinants were identified, and contributed to the development and empirical testing of a proposed conceptual model of service quality that encompasses environment, delivery, and outcome quality. Unlike the disconfirmation approach, the performance-only measure was used. Participants included postgraduates and academic staff from four research intensive universities in Malaysia. Exploratory factor analysis and confirmatory factor analysis using structural equation modeling was carried out in order to develop and validate a measurement model for Web-based service quality, which included three second-order dimensions and eight first-order dimensions. Insights into the conceptualization of Web-based library-service quality as a multidimensional hierarchical construct are provided. The emergence of specific determinants specific to the Web services supports the notion that measurement of electronic-service quality is different from traditional services, though they may share some common factors. 相似文献
25.
Numerical Magnitude Representations and Individual Differences in Children's Arithmetic Strategy Use 总被引：1，自引：0，他引：1
Against the background of neuroimaging studies on how the brain processes numbers, there is now converging evidence that numerical magnitude representations are crucial for successful mathematics achievement. One major drawback of this research is that it mainly investigated mathematics performance as measured through general standardized achievement tests. We extended this research by investigating the association between numerical magnitude representations and children's strategy use during single‐digit arithmetic. Our findings reveal that children's symbolic but not nonsymbolic numerical magnitude processing skills are associated with individual differences in arithmetic. Children with better access to magnitude representations from symbolic digits retrieve more facts from their memory and are faster in executing fact retrieval as well as procedural strategies. These associations remain even when intellectual ability, digit naming, and general mathematics achievement are additionally controlled for. All this indicates that particularly the access to numerical meaning from Arabic symbols is key for children's arithmetic strategy development, which suggests that educators and remedial teachers should focus on connecting Arabic symbols to the quantities they represent. 相似文献
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Reflections on working with critical action learning 总被引：1，自引：3，他引：1
Critical action learning engages participants in a process of drawing from critical perspectives to make connections between their learning and work experiences, to understand and change interpersonal and organisational practices. But what does this mean in practice? How can critical action learning be expedited? What outcomes can critical action learning have for participants, and can the hopes for critical action learning be fulfilled? The intentions of this paper are to contribute reflections of our empirical experience on working with critical action learning in management development. 相似文献
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2 experiments examined children's understanding of the expression of speaker certainty and uncertainty and its relation to their developing theory of mind. In the first experiment, 80 children between 3 and 6 years of age were presented with a task in which they had to guess the location of an object hidden in 1 of 2 boxes. As clues to location, the children were presented with contrasting pairs of statements by 2 puppets. Different trials contained all of the possible pairwise combinations of either the modal verbs must, might, and could or the modal adjuncts probably, possibly, and maybe. Results showed that while 3-year-olds did not differentiate between any of the modal contrasts presented, 4-year-olds and older children were able to find the hidden object on the basis of what they heard. Performance was best for contrasts involving a highly certain term (either must or probably) paired with a less certain term (might, could, possibly, and maybe). Experiment 2 was designed to determine whether competence with modal terms was related to competence with mental terms in the same task, and whether performance on the certainty task was related to other aspects of the child's understanding of the nature of beliefs. 26 4-year-olds were presented with the certainty task, involving both modal and mental terms, and with tasks assessing their understanding of false beliefs, representational change, and the appearance-reality distinction. Results showed that all of these tasks were intercorrelated, implying that what may develop at 4 years of age may be a general understanding of the representational nature of belief. 相似文献
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Florence Martin Lynn Ahlgrim-Delzell Kiran Budhrani 《The American journal of distance education》2017,31(1):3-19
Systematic reviews of literature are studies that strategically search for published research on a specific topic in order to synthesize what is known about the topic. This systematic review describes 157 articles on synchronous online learning (SOL) from thirty-four different countries on instructional setting, content areas, participant demographics, research designs, independent and dependent variables, SOL technologies, and data-collection tools. 相似文献
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Skamp Keith Boyes Eddie Stanisstreet Martin Rodriguez Manuel Malandrakis George Fortner Rosanne Kilinc Ahmet Taylor Neil Choker Kiran Shweta Dua Ambusaidi Abdullah Cheong Irene Kim Mijung Yoon Hye-Gyoung 《Research in Science Education》2021,51(3):861-887
Research in Science Education - Voting for various pro-environmental governmental policies is an indirect, but potentially effective, action that citizens can take to reduce global warming (GW) and... 相似文献
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Simbita A. Marwah Hitesh Shah Kiran Chauhan Amit Trivedi N. Haridas 《Indian journal of clinical biochemistry : IJCB》2014,29(2):161-166
Currently employed markers for the detection of acute coronary syndrome are Troponin T, CK (Creatine Kinase) and CKMB activity. CKMB activity measured by immunoinhibition method can give falsely elevated results due to the presence of atypical CK and CKBB and at times lead to the mis-diagnosis of acute coronary syndrome. Hence, CKMB mass (CKMB) measured by electrochemiluminence sandwich principle was employed. In this cross-sectional study 183 samples of 61 patients were analyzed within 6 h of diagnosis of acute coronary syndrome and followed up to 72 h. The correlation coefficient between CKMB activity and CKMBM at 4–6 h was 0.744, while at 12–24 h it was 0.909 and at 48–72 h it was 0.337. Thus there was good association between the two methods at 12–24 h but, statistically for method comparison studies and for replacing one method by another, the two methods need to be in agreement with one another. In this study the two methods are not in agreement with one another and thus analytically not replaceable. Another finding was obtained that CKMBM reached cut off levels prior to CKMB enzyme activity and hence, CKMBM is clinically better than CKMB activity to detect reinfarction. 相似文献