A B C D E F G H I J K L M N O P Q R S T U V W X Y Z All
Vijay, R.
- In-Vitro Cytotoxic Study of Moullava Spicata (Dalz.) Nicolson Leaf Extract
Authors
1 Department of Biochemistry, Mangalore University, P.G Centre, Cauvery Campus, Madikeri
2 Central Research Laboratory, A B Shetty Memorial Institute of Dental Sciences, Nitte University, IN
3 Department of Biochemistry, Mangalore University, P.G Centre, Cauvery Campus, Madikeri, IN
Source
Indian Journal of Forensic Medicine & Toxicology, Vol 7, No 2 (2013), Pagination: 182-186Abstract
Objectives: The aim of present study is to evaluate cytotoxic and genotoxic activity of Moullava spicata (Dalz.) Nicolson.Materials and Method: The aqueous extract of this plant subjected to genotoxic and cytotoxic study using yeast viability test, hemolytic assay and Allium test.
Result: The extract showed dose dependent effect on yeast viability and hemolysis of erythrocytes. The Allium test showed significant reduction of ischolar_main length (p > 0.01) and number (p > 0.001) indicated cytotoxic effect of plant extract. Microscopic observations showed cytotoxic effects such as ghost cell, membrane damage or rupture, apoptotic bodies and the extent damage was increased significantly after 96 hours treatment.
Conclusion: The study showed that the leaf extract of the M. spicata contains various biologically active compounds and possess cytotoxic effects.
Keywords
Moullava spicata (Dalz.) Nicolson, Allium test, Hemolysis, CytotoxicityReferences
- Sreerangini, S; Siril, E.A. 2011 Evaluation of anti genotoxic of the leaf extracts of Morinda citrifolia Linn, Plant Soil Environment 57: 222-227.
- Higashimoto, M; Purintrapiban, J; Kataoka, K; Kinouchi, T; Vinitketkumnuen, U; Akimoto, S. et al., 1993 Mutagenicity and antimutagenicity of extracts of three spices and a medicinal plant in Thailand. Mutational Research 303(3): 135-42.
- Schimmer, O; Kruger, A; Paulini, H; Haefele, ; 1994 An evaluation of 55 commercial plant extract in the Ames mutagenicity test. Pharmazie, 49: 448-451.
- Celik, T.A; Aslanturk, O.S; 2010 Evaluation of cytotoxicity and genotoxicity of Inula viscosa leaf extracts with Allium test. J of Biomedicine and Biotechnology.10: 1-8.
- Sinha, K.C; 1984., Neem oil as a veginal contraceptive. Indian J Medicinal Research. 79: 131-136.
- Upadhyay. S.N; Kaushic, C; Talwar, G.P; 1990 Antifertility effect of Neem oil by single intrauterine administration. Proc. R. Soc. Lond. B. 242,: 175-179.
- Shetty ,B.V; Kaveriappa, K.;, 200. An arboretum of endemic plants of Waster Ghats at Mangalore University campus, Karnataka ,India. Zoo’s Print Journal. 16(3): 431-438.
- Pulliah, T; 2006 Moullava spicata (Dalz.) Nicols. IN. Biodiversity in India, Rengency publication. Vol. 4, New delhi 506507.
- Nambiar, V.P.K.; Sasidaran, N; Renuka, C; Balagopan,M.; 1985 Medicinal plants. In. Studies on the medicinal plants of Kerala forest. Kerala Research Institute. Pecchi., Trissure. 56.
- Harborne, J; Harborne, A; Phytochemical methods: A guide to modern technique of plant analysis, Kluwer Academic Publishers, London, U.K.1998.
- Brindha, P; Sasikala, K; Purushoth, K; 1977 Preliminary Phytochemical studies in higher plants. Ethnobot., 3: 84-96.
- Mills, D.R; Differential staining of living and dead yeast cells., 1941. Food Res, 6: 361-371.
- Malagoli, D; A full length protocol to test hemolytic activity of palytoxin on human erythrocyte D. Information Systems J. 4: 92-94.
- Attia, M.M.A; Sayed, A.M; Ibrahim, F.A; Mohammed, A.S; El-Alfy, M.S; 2011. Effect of antioxidant vitamin on some hemoglobin properties and erythrocytes in homozygous âthalassemia. Romanian J Biophysics. 21: 1-16.
- Latha, L.Y; Sasidaran, S; Zuraini, Z; Suryani, S; Shirley, L; Sangetha, S; Davaselvi, M.; 2007. Antimicrobioal activity and toxicology of crude extract of the Psophocarphus tetragonolobus pods. African J Traditional Medicine. CAM.4 (1): 59-63.
- Sehgal, R.; Roy, S; Kumar, V.L; 2006., Evaluation of cytotoxic potential of latex of Calotropis procera and podophyllo toxin in Allium cepa ischolar_main model. Biocell. 30(1): 9-13
- Akeem, A; Mohamed, K.B; Asmawi, M.Z; Safiman, O.Q; 2011., Mutagenic and antimutagenic potential of fruit juices of five medicinal plants in Allium cepa L.: possible influence of DPPH free radical scavengers. African J Biotechnology, 10 (51): 10520-10529.
- Sharma, A.K; Sharma, A; 1980 Chromosome technique theory and practice. 3rd edition. Buterworth: London. U.K. :474.
- Armour, C. D; Lum, P. Y; 2005 From drug to protein: using yeast genetics for high-throughput target discovery. Curr. Opin. Chem. Biol. 9: 20"24.
- He, X.G; Mocek, U; Floss, H.G; Caceres, A.; Giron, L; Buckley, H; Cooney, G; Manns, J; Wilson, B.W; 1994 An antifungal compound from Solanum nigrescens. J. Ethnopharmacology. 43: 173-177.
- Jayaprakash, G; Patil, ;, 2007 In vitro evaluation of the antioxidant activities in fruit extract from cetron and blood orange. Food chemistry, 101: 410-418
- Kviecinski, M.R.; Felipe, K.B; Schoenfelder, T; 2008 Study of the antitumor potential of Bidens pilosa (Astraceae) used in Brazilian folk medicine. J of Ethnophormocology, 117 :69-75.
- Battacharya, S; Haldar, P.K; 2012. Evaluation of antimititic and genotoxic effect of the triterpenoide enriched extract from Trichosanthes dioica ischolar_main. Amarican- Euracian J Toxicological Science 4(1) : 20-23.
- Fiskesjo, G; 1993 Allium test: A 2-3 day plant test for toxicity assessment by measuring the mean ischolar_main growth of onions. Envt. Toxicology And Water Quality, 8: 461- 470.
- Ateeq, B; Farah, M.A; Ali, M.N; Ahmad, W; 2002 Clastogenic of pentachlorophenol, 2-4-D and Butachlor evaluated by Allium ischolar_main tip test. Mutational Research, 514: 105-113.
- Quantum Measurements with Superconducting Circuits
Authors
1 Quantum Measurement and Control Laboratory, Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400 005, IN
2 Quantum Measurement and Control Laboratory, Department of Condensed Matter Physics and Materials Science, Tata Institute of Fundamental Research, Mumbai 400 005, IN
Source
Current Science, Vol 109, No 11 (2015), Pagination: 2069-2076Abstract
We measure the state of a superconducting quantum bit (qubit) coupled to a microwave cavity by scattering a microwave signal from the cavity. The scattered signal is amplified using a low-noise Josephson parametric amplifier. We carried out measurements to infer the coherence properties of the qubit. In the strong measurement regime, we observe quantum jumps between the qubit states in real time, while we observe stochastic quantum trajectories in the weak measurement regime. The coherence times and measurement fidelity obtained are sufficient for implementing quantum error correction.Keywords
Circuit QED, Coherence Properties, Qubits, Quantum Measurement, Superconducting Circuits.References
- Nielsen, M. and Chuang, I., Quantum Computation and Quantum Information, Cambridge University Press, 2000.
- Braginsky, V. B. and Khalili, F. Ya., Quantum nondemolition measurements: the route from toys to tools. Rev. Mod. Phys., 1996, 68(1), 1–11.
- Gardiner, C. and Zoller, P., Quantum Noise, Springer, 2004.
- Goan, H.-S., Milburn, G. J., Wiseman, H. M. and Sun, H. B., Continuous quantum measurement of two coupled quantum dots using a point contact: a quantum trajectory approach. Phys. Rev. B, 2001, 63(12), 125326-1 to 12.
- Korotkov, A. N., Continuous quantum measurement of a double dot. Phys. Rev. B, 1999, 60(8) 5737–5742.
- Devoret, M. H. and Schoelkopf, R. J., Superconducting circuits for quantum information: an outlook. Science, 2013, 339(6124), 1169–1174.
- You, J. Q. and Nori, F., Atomic physics and quantum optics using superconducting circuits. Nature, 2011, 474(7353), 589–597.
- Blais, A., Huang, R.-S., Wallraff, A., Girvin, S. M. and Schoelkopf, R. J., Cavity quantum electrodynamics for superconducting electrical circuits: an architecture for quantum computation. Phys. Rev. A, 2004, 69(6), 062320-1 to 14.
- Wallraff, A. et al., Strong coupling of a single photon to a superconducting qubit using circuit quantum electrodynamics. Nature, 2004, 431(7005), 162–167.
- Castellanos-Beltran, M. A., Irwin, K. D., Hilton, G. C., Vale, L. R. and Lehnert., K. W., Amplification and squeezing of quantum noise with a tunable Josephson metamaterial. Nature Phys., 2008, 4(12), 929–931.
- Hatridge, M., Vijay, R., Slichter, D. H., Clarke, J. and Siddiqi, I., Dispersive magnetometry with a quantum limited SQUID parametric amplifier. Phys. Rev. B, 2011, 83(13), 134501-1 to 8.
- Josephson, B. D., Coupled superconductors. Rev. Mod. Phys., 1964, 36(1), 216–220.
- Koch, J. et al., Charge-insensitive qubit design derived from the Cooper pair box. Phys. Rev. A, 2007, 76(4), 042319-1 to 19.
- Kelly, J. et al., State preservation by repetitive error detection in a superconducting quantum circuit. Nature, 2015, 519(7541), 66–69.
- Córcoles, A. D., Magesan, E., Srinivasan, S. J., Cross, A. W., Steffen, M., Gambetta, J. M. and Chow, J. M., Demonstration of a quantum error detection code using a square lattice of four superconducting qubits. Nature Commun., 2015, 6, 6979-1 to 10.
- Berman, P. (ed.), Cavity Quantum Electrodynamics, Academic Press, 1994.
- Paik, H. et al., Observation of high coherence in Josephson junction qubits measured in a three-dimensional circuit QED architecture. Phys. Rev. Lett., 2011, 107(24), 240501-1 to 5.
- Houck, A. A. et al., Controlling the spontaneous emission of a superconducting transmon qubit. Phys. Rev. Lett., 2008, 101(8), 080502-1 to 4.
- Korotkov, A. N., Quantum Bayesian approach to circuit QED measurement. arXiv:1111.4016[quant-ph].
- Hatridge, M. et al., Quantum back-action of an individual variablestrength measurement. Science, 2013, 339(6116), 178-181.
- Murch, K. W., Weber, S. J., Macklin, C. and Siddiqi, I., Observing single quantum trajectories of a superconducting qubit. Nature, 2013, 502(7470), 211–214.
- Vijay, R., Slichter, D. H. and Siddiqi, I., Observation of quantum jumps in a superconducting artificial atom. Phys. Rev. Lett., 2011, 106(11), 110502-1 to 4.
- Vijay, R. et al., Stabilizing Rabi oscillations in a superconducting qubit using quantum feedback. Nature, 2012, 490(7418), 77–80.
- Weber, S. J., Chantasri, A., Dressel, J., Jordan, A. N., Murch, K. W. and Siddiqi, I., Mapping the optimal route between two quantum states. Nature, 2014, 511(7511), 570–573.
- Collin, E., Ithier, G., Aassime, A., Joyez, P., Vion, D. and Esteve, D., NMR-like control of a quantum bit superconducting circuit. Phys. Rev. Lett., 2004, 93(15), 157005-1 to 4.
- Ithier, G. et al., Decoherence in a superconducting quantum bit circuit. Phys. Rev. B, 2005, 72(13), 134519-1 to 22.
- Terhal, B. M., Quantum error correction for quantum memories. Rev. Mod. Phys., 2015, 87(2), 307–346.
- Fedorov, A., Steffen, L., Baur, M., Da Silva, M. P. and Wallraff, A., Implementation of a Toffoli gate with superconducting circuits. Nature, 2011, 481(7380), 170-172.
- Reed, M. D., DiCarlo, L., Nigg, S. E., Sun, L., Frunzio, L., Girvin, S. M. and Schoelkopf, R. J., Realization of three-qubit quantum error correction with superconducting circuits. Nature, 2012, 482(7385), 382–385.
- Ristè, D., Poletto, S., Huang, M.-Z., Bruno, A., Vesterinen, V., Saira, O.-P. and DiCarlo, L., Detecting bit-flip errors in a logical qubit using stabilizer measurements. Nature Commun., 2015, 6, 6983-1 to 6.
- Peasant Migration and Lease Market: An Investigation into a Village
Authors
1 University of Hyderabad, Hyderabad 500 046, IN
Source
Artha Vijnana: Journal of The Gokhale Institute of Politics and Economics, Vol 46, No 3-4 (2004), Pagination: 349-360Abstract
A much-debated issue in agriculture is the form and nature of tenancy relations. An implicit opinion in the debate is the low turnover in the permanent transaction market for land and any sales that exist are to meet the cash needs of the households. In such a situation the resource adjustments in the market are in the temporary transaction market. But in a village economy which has witnessed a relatively high turnover in the market resource adjustments in the market takes place in both the markets. In such a village economy it would be interesting to see the form and nature of the lease market.
In the present paper, an attempt is made to study the lease market in an expanding economy. The source of growth in the economy was the provision of water through irrigation. This has led to in-migration of peasants from other areas wha had bought land as well as leased land. The nature af permanent transaction market for land was analyzed in an earlier paper where it was found that the seller's characteristics influence the price of land while the' buyer's characteristics influence the quantum of land leased. The objective of this paper is to examine whether the characteristics of agents, in which migrant-native character is one important variable, influences the quantum of land leased and the value of rental on land. Here it is seen that migrant-native character of the buyer influences the rental value of rental land but not the quantum of land. In addition the leasing out agent dominantly influences the lease market i.e., the supply side factors influence the lease market.
- Accounting for Breaks in Agriculture: A Study of Andhra Pradesh and Orissa
Authors
1 University of Hyderabad, Central University (P.O.), Hyderabad 500046, IN
Source
Artha Vijnana: Journal of The Gokhale Institute of Politics and Economics, Vol 51, No 4 (2009), Pagination: 360-376Abstract
Is the performance of the agricultural sector in Andhra Pradesh and Orissa smooth and continuous or any structural breaks are there? A shift in the growth regime would imply that at least one of the growth inducing factors (area, yield and cropping pattern) should also witness a regime change. The present paper attempts to identify the break points in the growth profile of the two states and also aims at accounting for the breaks in the performance of agricultural sector. Both the economies had two structural breaks in their performance during the post 1960’s period. Andhra Pradesh witnessed acceleration in growth of its agrarian economy over the phases while Orissa faced deceleration over the three phases. In Orissa, turning points in the Index number of area is an important factor for explaining turning points in agrarian performance. In case of Andhra Pradesh, the turning points in index number of yield and crop diversification play an important role in explaining turning points in overall growth performance and index number of land has limited role in explaining the turning points in the growth performance. Orissa’s agrarian economy continues to be in the ‘extensive’ phase with the importance of land under cultivation while Andhra Pradesh witnessed a shift to the phase of intensive cultivation with an increased dependence on yield.- Development Microeconomics
Authors
1 University of Hyderabad, IN
Source
Artha Vijnana: Journal of The Gokhale Institute of Politics and Economics, Vol 42, No 4 (2000), Pagination: 385-397Abstract
In recent times interest in economics of development has once again gained in importance. The present set of literature is different when compared to the earlier set of literature on development economics. Much of the earlier literature was oriented towards policy with an emphasis on industrialization of countries. The agricultural sector was expected to respond to the signals of industry by supplying labour, raw material and wage goods needed for industrialization. Further, agricultural sector was supposed to absorb the output of industry either in the form of consumption or as input in agriCUlture. The industry-agriculture linkages are expected to pull the economy on a growth path with industry playing the role of engine of growth. The industrial sector was viewed as the engine of growth in the economy. However, the stimulus provided by industry did not always translate into growth in the aggregate economy, raising some important questions in development economics in general and development and growth of agricultural sector in particular. In this context, it is worth noting the contributions emerging from the sludy of contracls in the agricultural seclor, most notably the tenancy contracts , the labour contracts etc., within the discipline of what is being called 'Institutional Economics'. The present day models in development economics, which evolved in this context, have shifted the emphasis from policy prescription involving industrialization to understanding the role of agricultural sector and the forms of organization of production in agriculture.- Modeling Migrant Native Contracts
Authors
1 Gokhale Institute of Politics and Economics, Pune 411 004., IN