排序方式： 共有39条查询结果，搜索用时 15 毫秒
31.
亚太地区教育质量保障注册制（APQR）作为对教育质量保障机构的一种国际性、非政府、自律性的约束和规制活动,在评估质量保障方面起到了重要作用。根据8家教育质量保障机构对APQR评审满意度的分析,发现APQR评审符合“第四代评估理论”的理念。从评审依据来看,APQR是建构主义的动态化评审;从评审重点来看,APQR重点审视质量保障机构开放、包容以及公信力三大方面;从评审结果来看,APQR灵活运用四个等级来进行综合判断。APQR具有可供借鉴的评审经验,但仍存在需要改进之处以更好实现可持续发展。 相似文献
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This research paper explores students’ motivation and teachers’ teaching practices towards the writing of compositions in the conventional paper-based (paper and pencil) and the online blogs mode. Six classes of Grade 5 (224 students) and four English teachers in an elementary-level future school in Singapore were involved in this study. A total of four written assignments were given to the students – two conventional paper and pencil and two online blog-written assignments. No significant difference was found in students’ scores on these assignments. However, the submission rate for the conventional paper-based assignments was 93.8% as compared to 75% for the online blogs entries. Although both students and teachers in this study are savvy information communication technology users who have been exposed to one-to-one computing since Grade 1, the use of blogs for journal writing was not natural to both parties. Teachers found that it was more cumbersome to grade and give comments on students’ online blog posts via the online platform and likewise, students also faced issues with the submission of their online writing assignments. Some students quoted that they preferred writing via conventional paper and pencil mode, experienced network connection and technical issues, had poor time management, experienced forgetfulness and distraction from the computers and the Internet for not submitting their online writing assignments. This study also once again highlighted the importance of the teacher, as one out of the four teachers managed to get all her students to submit their writing assignments. The in-depth analysis of the interviews with the teachers and students, students’ perception survey, students’ performance in their writing tasks (both online and paper-based) and submission rates had revealed useful insights and considerations on the use of blogs to engage students in writing. 相似文献
33.
M. S. Ghadge A. V. Sirsat M. S. Bhansali L. J. Desouza P Jagannath 《Indian journal of clinical biochemistry : IJCB》2001,16(1):60-64
Serum levels of leucine amino peptidase (LAP) was studied along with bilirubin, aspartate transaminase (AST), alanine transaminase
(ALT), gamma glutamyl transpeptidase (GGT), alkaline phosphatase (ALP) and the ratio of AST/ALT and GGT/AST in 25 healthy
subjects and 52 patients with hepatobiliary malignancies of which 12 were with hepatocellular carcinoma, 12 with liver metastasis,
6 with obstructive jaundice, 9 with carcinoma of gall bladder, 6 with carcinoma of pancreas and 7 with periampullary carcinoma.
24 Of the 52 patients studied had jaundice and 28 were without jaundice.
LAP as compared to the other enzymes AST, ALT, GGT, ALP and AST/ALT ratio and GGT/AST ratio showed 100% elevation in obstructive
jaundice, carcinoma of gall bladder and pancreas and periampullary carcinoma, 91.7% elevation in hepatocellular carcinoma
and 83.3% elevation in liver metastasis. On comparing the levels of these enzymes in non jaundiced and jaundiced groups, LAP
was elevated in both jaundiced and non jaundiced groups in 95.8% and 92.9% cases respectively whereas the other enzymes AST
showed increase from 67.9% to 100%, ALT from 21.4% to 83.3%, GGT from 71.4% to 95.4% and ALP from 82.1% to 100% in non jaundiced
and jaundiced groups respectively indicating that LAP rises in hepatic dysfunction due to hepatobiliary malignancy whereas
the other liver function enzymes showed increased hepatic dysfunction due to hepatobiliary malignancy with the onset of jaundice
thereby indicating that LAP is a better indicator of hepatobiliary malignancy as compared to other enzymes.
The quantitative methods used for determination are reliable, accurate, simple, rapid and cost effective and therefore have
better application in a clinical setting. 相似文献
34.
D. Charles Stephen M. S. Seshadri Regi Oommen Aravindan Nair S. Swaminathan A. S. Kanagasabapathy 《Indian journal of clinical biochemistry : IJCB》1999,14(1):26-32
An in-house radioimmuno assay for serum thyroglobulin was developed in our laboratory and compared its relative sensitivity
with that of whole body scan in the detection of residual tumour or metastases and evaluated the predictive value of serum
thyroglobulin in the clinical course of the disease. Ninety six patients after thyroidectomy were followed up for a maximum
period of five years in this study.
The sensitivity and specificity of serum thyroglobulin were found to be close to that of whole body scan (85% and 94% respectively).
According to this study, a serum thyroglobulin >40 ng/ml can differentiate between patients with metastases and those in remission.
Serum thyroglobulin can replace whole body scan during the subsequent follow-up if the patient had concordant whole body scan
and serum thyroglobulin during initial assessment. 相似文献
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36.
Gabriel D Proctor D Engle D Nair S Vittone J An KN 《Research quarterly for exercise and sport》2002,73(2):168-174
The percentage of decrement in torque and the number of serial contractions are mutually exclusive methodological controls in the study of muscular fatigue. This paper examines the feasibility of using the LaGrange polynomial in the analysis of voluntary muscular fatigue patterns. Twenty-one men (ages 20-60 years) reported to the orthopedic biomechanics laboratory on 2 days separated by 4 months. During both sessions, participants completed three maximal isokinetic (180 deg x s(-1)) contractions of the knee extensors to serve as baseline, before starting the fatigue protocol. The fatigue protocol consisted of serial contractions until a 50% strength decrement was reached. The LaGrange polynomial was first used to interpolate the individual fatigue pattern for each participant into 15 data points (trials). Data analysis was then conducted on these 15 data points. Intraclass correlation analysis of variance showed that the reliability of baseline torque was very good (.93). Baseline torque, the average of three trials, exhibited a 5.4 Nm (6%) increase from the first to second test session (p < .05). The mean level of torque, average of the 15-point fatigue pattern, also increased 7.5 Nm (15%) on the second test session (p < .05). The classic torque deficit for the first trial of a fatigue series was preserved by the interpolation method. Serial contractions resulted in an average decrease in torque of 29.5 Nm (50%) from the first to last trial (p <.05). The interpolation method also retained the linear and quadratic trend components commonly observed for isometric and isokinetic fatigue patterns. The two trend components accounted for 94.7% of the total trial variance. It was concluded that the LaGrange polynomial used to interpolate fatigue patterns to fewer data points was successful. 相似文献
37.
M. M. Khanolkar A. V. Sirsat M. S. Bhansali P. Jagannath L. J. Desouza 《Indian journal of clinical biochemistry : IJCB》1996,11(1):26-31
Total amylase activity, its isoenzymes and pancreatic to salivary ratio were studied in 33 healthy subjects and 52 patients with hepatobiliary and pancreatic malignancies of which 12 were with hepatocellular carcinoma, 12 with liver metastases, 9 with carcinoma of gall bladder, 6 with obstructive jaundice, 7 with periampullary carcinoma and 6 cases with carcinoma of pancreas. Total amylase was found to be elevated in carcinoma of pancreas and periampullary carcinoma compared to normal whereas in obstructive jaundice the values were decreased significantly (p<0.001). P (Pancreatic) fraction was found to be elevated significantly in all except in carcinoma of pancreas and obstructive jaundice. S (Salivary) fraction was decreased significantly in all except in carcinoma of pancreas. P/S ratio was elevated in hepatocellular carcinoma, obstructive jaundice, metastatic liver disease, gall bladder carcinoma and periampullary carcinoma (p<0.001) but in carcinoma of pancreas P/S ratio was low as compared to normal. This simple test of total serum amylase, P fraction and S fraction, P/S ratio can be utilised in differentiating various hepatobiliary and pancreatic malignancies. 相似文献
38.
Ever since its isolation in 1820, Quinine has played a crucial role in the development of organic chemistry, chemical industry
and modern medicine. The total synthesis of quinine, widely regarded as an event of epochal importance was claimed by Woodward
and Doering in 1945. This work, however, heavily relied on unsubstantiated literature reports and it appears that Woodward’s
work fell short of a total synthesis of quinine. The first stereoselective total synthesis of quinine was accomplished only
in 2001, by Stork, who incidentally is the originator of the concept of stereoselectivity in total synthesis. Naturally, this
work has been attested as a landmark in organic synthesis by leaders in the field. 相似文献
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