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Revathi Ananthakrishnan 《Resonance》1999,4(4):12-19
The standard solar model with the standard electroweak theory does not explain the solar neutrino problem. However, a slight modification to this theory, in which there is a mass difference in the neutrinos and mixing between them, does seem to explain the experimental observations. However to test conclusively the theory and oscillation effect, a detector which can detect separately the charged current interactions of the electron neutrinos and neutral current interaction of both the neutrinos with matter and also give accurate measurements of the two interactions is to be built. The next generation of solar neutrino experiments aims to test the above theory. One experiment, which proposes to detect neutrinos through both neutral and charged current interactions, is the Water Cherenkov Detector of the Sudbury Neutrino Observatory (SNO) at Ontario, Canada. Another Water Cherenkov Detector,the massive Super Kamiokande detector, has just become operational and the analysis of the data being collected from the detector are being reported in many conferences. The scientists at Kamiokande have very recently reported at the Neutrino ’98 Conference the exciting result that the neutrino does have a mass. They are now clear that they have reached a level of understanding in Neutrino Astrophysics, where neutrino oscillation solutions can be discussed. 相似文献
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Loretta Bradley Gerald Parr William Y. Lan Revathi Bingi L. J. Gould 《International journal for the advancement of counseling》1995,18(1):21-31
International students not only face the normal adjustment problems of young adulthood but also the adjustment to a different culture. A random sample of 100 colleges and universities was contacted. International students enrolled at the institutions completed a questionnaire designed to assess the counselling preferences of international students. Results are discussed in terms of desirable counsellor characteristics and implications for counsellor training. Suggestions are made for facilitating counselling with international students. 相似文献
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A simple, rapid and inexpensive test is described based on the activity of the enzyme pyrazinamidase, which hydrolyses pyrazinamide
to pyrazinoic acid. This test differentiates most of the corynebacteria possessing this enzyme from the exotoxin producing
human pathogenic members of this group, i.e.,C. diphtheriae, C. ulcerans andC. pseudotuberculosis, which do not produce this enzyme. In our laboratory, 16 isolates ofC. diphtheriae and 75 isolates of non-diphtheric corynebacteria were rapidly identified, over the past three years. 相似文献
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Ananthakrishnan Ramani Sudhakar S. Nayak A. R. Aroor G. N. Kundaje 《Indian journal of clinical biochemistry : IJCB》1991,6(1):59-64
Both cigarette smoking and propranolol administration significantly alter plasma lipid profile. We examined the relationship
of cigarette smoking and propranolol administration with fasting serum total cholesterol, triglyceride, lipoprotein cholesterol
subfractions (high density, low density, and very low density), Apo-A, Apo-B and ratios obtained from these variables in 42
hypertensive patients. Significantly lower values of HDL cholesterol, Apo-A and HDL-C/total cholesterol and Apo-A/Apo-B ratios
were observed in smokers taking propranolol than non-smokers not taking propranolol. Smokers who were not on propranolol also
had significantly lower values as compared to non-smokers. These findings suggest that smoking may be the more significant
factor responsible for alteration in lipid profile. 相似文献
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C. Rekha Srinivasa Phanidhar A. Vidya Sagar A. Revathi W. A. Asra 《Indian journal of clinical biochemistry : IJCB》2007,22(2):136-139
In a prospective study of 47 patients of subclinical hepatic encephalopathy in cirrhosis of liver, aged between 23 and 60
years, 49% showed Helicobacter pylori positivity by rapid urease test. The baseline characters of patients (mean age, serum
creatinine, sereum albumin, serum bilirubin, prothrombin time) were similar among patients with and without Helicobacter infection
in all the patients. There was no statistically significant difference in blood ammonia levels in either group of patients.
Blood ammonia values showed good correlation with the functional state of liver function but they did not show statistically
significant difference between two groups of patients in any of Child Pugh classes. It is concluded that Helicobacter pylori
does not contribute significantly to blood ammonia levels and the severity of hepatic encephalopathy. 相似文献
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