Effect of integrating IoT courses at the freshman level on learning attitude and behaviour in the classroom     

Malhotra  Shivani  Kumar  Amit  Dutta  Rubina 《Education and Information Technologies》2021,26(3):2607-2621

Education and Information Technologies - As a technology the effect of the Internet of Things (IoT) is so strong that it has changed the way of living. The transition is also apparent in the field...  相似文献   

From conventional governance to e-democracy: Tracing the evolution of e-governance research trends using network analysis tools     

N. Bindu  C. Prem Sankar  K. Satheesh Kumar 《Government Information Quarterly》2019,36(3):385-399

The adoption of e-governing practices has revolutionised the administrative machinery of governments worldwide by improving efficiency, transparency, and accountability. Researchers and administrators often aim to identify emerging research fronts and the timeline of the evolution to forecast and implement technology. In this work, we systematically investigate the trajectory of the global evolution and emerging research fronts as well as the prospects for e-governance using citation network analysis. The growth curve fitted to the number of articles published per year shows that the research activities are still in the ascendant phase. We visualise the global main path of the citation network and investigate the patterns to trace the knowledge diffusion path, major milestones, and emerging research fronts. The cluster analysis identifies the major topics of research as administration and information system management, e-governance framework design, efficiency or quality evaluation, and the application of social networks and open data leading to e-democracy. The adoption of open data and social networking for user interactions with government that leads to participatory governance are the emerging research trends. We also identify research that can have a future impact based on network parameters. The results contribute to the literature by setting the focus of future research, and assisting administrators in selecting suitable models and methodologies, and manufacturers with the development of required technical devices suitable for the upcoming phase of symbiosis.  相似文献   

Evaluation of serum adenosine deaminase and 5′-nucleotidase activities as probable markers in ovarian cancer     

P. Pragathi  P. V. Bharath Kumar  P. Amar Kumar  M. Ramakanth Reddy  V. Sravani  J. Neeraja  Eapen Reeba Mary  K. Gopalakrishna 《Indian journal of clinical biochemistry : IJCB》2005,20(2):195-197

Adenosine deaminase (ADA) and 5′-nucleotidase (5′-NT) activities were measured in sera of patients with ovarian cancer and patients with benign ovarian tumour. The results were compared with that of a control group consisting of healthy women. ADA levels were significantly increased (P<0.001) in the ovarian cancer group (n=50) but not in the benign group (n=28) when compared to the controls (n=20). The results indicate that ADA and 5′-NT levels may help to differentiate malignant conditions from benign tumours of the ovary in addition to the existing tests such as serum CA-125 levels and histopathological study.  相似文献   

Effect of feeding Carica papaya (Papita) fruits on blood lipid profile of albino rabbits     

Ajai Kumar  M. C. Pant  H. N. Pandey  J. L. Aggarwal  R. S. Sharma  L. D. Joshi  S. Singh 《Indian journal of clinical biochemistry : IJCB》1993,8(1):47-50

Effect of feeding ripe and unripe papaya fruit pulps were investigated on blood lipid profile of normal male adult albino rabbits by giving them pulps separately at the dose of 15 and 30g per day along with standard diet over a period of six weeks. As compared to controls both fruit pulps resulted in highly significant (p<0.001) and consistent lowering of serum cholesterol, low density lipoprotein cholesterol and triglycerides and elevation in phospholipids and high density lipoprotein cholesterol levels at 1,3 and 6 weeks of fruit pulp feeding indicating a dose dependent effect. Observations clearly support medicinal value ofC. Papaya in the management of atherosclerosis, fatty liver, ischaemic changes and consequential myocardial infarction.  相似文献   

External quality assessment of RIA for thyroid related hormones     

D. H. Shah  Ajay Kumar  M. G. R. Rajan  U. R. Thakare  S. M. Sharma 《Indian journal of clinical biochemistry : IJCB》1989,4(1):14-22

An external quality assessment was conducted for RIA of thyroid related hormones. Thirtyfive laboratories (35 for T₄, 34 for T₃ and 23 for TSH) from different parts of country participated in the programme. Twentyfour samples (16 pools: 5 simple and 11 manipulated pools) in 8 batches, 3 per batch per month were sent for analysis of T₄, T₃ and TSH. Some of the samples were repeated 3 times at different occasions to assess the imprecision of the laboratory. The overall mean percent CV obtained for T₄, T₃ and TSH were 22.7, 36.32 and 52.38 respectively. The recovery for added T₄ was 86.73% while that for T₃ was 117.4%. A large variation was obtained for recovery of TSH. For T₄ estimations, 13 laboratories had a desirable performance i. e. bias less than ±10.0% and variability of bias (VB) and imprecision (IP) less than 15.0%. None of the laboratories had a desirable performance for T₃ or TSH. The number of laboratories with acceptable performance i. e. bias between ±10.0–15.0%, VB and IP between 20.0–25.0% for T₄, T₃ and TSH were 4, 3 and 0 respectively. The number of laboratories which required attention (bias between ±15.0–20.0%; VB and IP between 20.0–25.0%) were 5,7 and 1 respectively. The unacceptable results with larger bias, VB and IP for T₄, T₃ and TSH were 6, 18 and 17 respectively. Our results are in general agreement that the performance of T₄ assay is better than T₃ and both in turn are much better than TSH. Quantitation of circulating thyroid hormones (TH) viz. tri-iodothyronine (T₃), thyroxine (T₄) and thyroid stimulating hormone (TSH), which form the largest percentage of hormones estimated in a clinical laboratory is mainly done by radio-immunoassay (RIA) procedures. The reliability and reproducibility of these assays are generally monitored by using internal quality control (IQC) samples in every assay batch. Thus, the IQC provides information whether the assay results are satisfactory and can be released. However, external quality assessment (EQA) is a procedure whereby an external agency undertakes evaluation of the quality of an analytical service by providing samples for analysis to individual laboratories performing the assay. The data gathered is analysed collectively. EQA therefore provides a means by which performance of a laboratory is assessed in relation to other laboratories and matching the assay unbiased by removing systematic error, if present. This is important since RIA procedure involves several steps (collection and storage of samples, quality of the reagents, procedure followed for performance of an assay, counting equipment used and the mode of the data analysis) and therefore prone to systematic errors. We therefore undertook the EQA programme for assessment of thyroid related hormones as a joint collaborative project of Bhabha Atomic Research Centre, India and International Atomic Energy Agency.  相似文献   

Blood glutathione peroxidase and selenium in abortion     

Mishra  Prafulla Kumar  Chaudhuri  J. 《Indian journal of clinical biochemistry : IJCB》2003,18(1):96-98

This study was carried out to estimate the levels of glutathione peroxidase and selenium in blood of abortion cases. Glutathione peroxidase and selenium were determined in 52 abortion cases (22 in 1^st trimester, 30 in second trimester), 45 normal pregnant cases and 25 nonpregnant control cases. The selenium concentration in whole blood and plasma in abortion cases was almost the same as in normal pregnant women but significantly low when compared with the control non-pregnant group. The glutathione levels was higher in abortion cases when compared with normal pregnant and non-pregnant control groups. Red cell and plasma glutathione peroxidase activities of women who had abortion were significantly lower compared with both non-pregnant control group and normal pregnancies.  相似文献   

Primula munroi的产自东喜马拉雅的一个新亚种——P. munroi ssp. schizocalyx     

Sandip Kumar Basak  Gour Gopal Maiti 《中国科学院研究生院学报》2001,39(5):473-476

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Liberalization, outward orientation and in-house R&D activity of multinational and local firms: A quantitative exploration for Indian manufacturing     

Nagesh Kumar  Aradhna Aggarwal 《Research Policy》2005,34(4):441-460

In an increasingly globalizing and knowledge-based world economy, the declining importance of R&D activity in India is a matter of concern. This paper analyzes the determinants of R&D behaviour of Indian enterprises over the 1990s in the context of the reforms of 1991 and their impact on the R&D behaviour of MNE affiliates and local enterprises. The analysis suggests that although average levels of spending have fallen, increased competition due to liberalization seems to have pushed local firms to rationalize their R&D activity and make it more efficient. Also, R&D spending seems to rise more than proportionally with firm size after a certain threshold level has been reached. The analysis brings out differences in the nature of R&D activity of MNE affiliates and local firms. Local firms direct their R&D activity primarily towards the assimilation of imported technology, and to providing a backup to their outward expansion via exports and FDI. MNE affiliates, on the other hand, focus on exploiting the advantages of India as an R&D platform for their parents. The paper is concluded with some policy implications of the findings.  相似文献   

Immunodiagnosis of tuberculosis: An update     

A. S. Bhatia  Satish Kumar  B. C. Harinath 《Indian journal of clinical biochemistry : IJCB》2003,18(2):1-5

Tuberculosis is still a major health problem in most developing countries and its incidence is rising in many developed countries. This resurgence has been attributed to the HIV epidemic and TB has been declared as a global health emergency by WHO in 1993. The diagnosis of tuberculosis mainly depends upon initial clinical suspicion and radiographic findings with subsequent bacteriological confirmation by sputum smear examination and culture. Lack of sensitivity in smear examination, non specificity of radiological findings, extended tum around time ofMycobacterium tuberculosis culture and difficulties in diagnosing paucibacillary, childhood and extrapulmonary tuberculosis has necessitated to explore the utility of immunodiagnosis of tuberculosis as a convenient and cost effective test to supplement clinical information for definite diagnosis. Many commercial tests are available in the market for diagnosis of TB. Most of these tests are based on the detection of IgG, IgA and IgM antibodies to specific mycobacterial antigen or mixture of antigens. Indigenous immunoassay systems have explored excretory-secretory ES-31 mycobacterial antigen for immunodiagnosis of TB. Many a time there is lack of consistent elevation in all the three Ig classes in active infection thus making it more important to determine the ideal antibody isotype assay for reliable diagnosis of tuberculosis and to save the costs of the patient for unnecessary investigations.  相似文献   

Serodiagnosis of tuberculosis using two ELISA systems     

Swati Banerjee  Sonika Gupta  Niraj Shende  Satish Kumar  Bhaskar C. Harinath 《Indian journal of clinical biochemistry : IJCB》2003,18(2):48-53

Serodiagnosis by ELISA has been widely explored over the years, in the diagnosis of tuberculosis. Two ELISA systems were evaluated for detection of mycobacterial antibodies in pulmonary and extra pulmonary tuberculosis. The two test assays explored were ERBA LISA (TB IgG) test (Anda Biologicals) which uses A60 antigen complex found in the cytosol of typical and atypical mycobacteria, and SEVA TB (IgG) ELISA, which uses a 31 kDa, glycoprotein antigen purified fromM. tb H₃₇Ra culture filtrate. Sera from 98 proven tuberculosis [pulmonary TB (48), tuberculous lymphadenopathy (30), tuberculous meningitis (15) & genitourinary TB (5)] were studied along with 32 healthy controls. The overall positivity obtained using ERBA LISA (TB IgG) test and SEVA TB (IgG) ELISA test was 72.9% and 91.6% in pulmonary tuberculosis, 43.3% and 76.6% in tuberculous lymphadenopathy respectively. The sensitivity of ERBA LISA test in tuberculous meningitis and genito-urinary TB was significantly low (26.6% & 40% respectively) compared to sensitivity obtained using SEVA TB ELISA (86.6% & 60% respectively) with overall specificity of 60% and 87.5%. Thus SEVA TB IgG ELISA test was found to be more sensitive than ERBA LISA in detecting IgG antibodies in tuberculous sera, in particular in extra pulmonary tuberculosis cases.  相似文献