Refine your search
Collections
Co-Authors
Journals
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
Umadevi, P.
- In vitro Antioxidant and Antilipidperoxidative Potential of Calocybe indica
Abstract Views :761 |
PDF Views:715
Authors
Source
Journal of Natural Remedies, Vol 10, No 1 (2010), Pagination: 27-31Abstract
The ethanolic extract of Calocybe indica was studied for its free radical scavenging property on different in vitro models like 1, 1 - diphenyl-picryl hydrazyl (DPPH) Assay, Ferric Reducing Antioxidant Power (FRAP) assay and in vitro antilipidperoxidative assay using goat liver homogenate and RBC Ghost model. The in vitro Lipid peroxidation (LPO) was inhibited to a good extent by the Calocybe indica ethanolic extract and the extent of inhibition being higher in the RBC membrane model than the liver homogenate model. The mushroom extract showed good dosedependent free radical scavenging property in both the models.Keywords
Free Radical Scavenging, Calocybe indica, AntioxidantFull Text
- Secure and Efficient Query Execution on Preference Keyword Search Data
Abstract Views :182 |
PDF Views:2
Authors
P. Umadevi
1,
J. Shamla
2
Affiliations
1 Computer Science Department, Arulmigu Meenakshi Amman College of Engg., Thiruvannamalai Dt, Near Kanchipuram, Anna University, IN
2 Arulmigu Meenakshi Amman College of Engg., Thiruvannamalai Dt, Near Kanchipuram, Anna University, IN
1 Computer Science Department, Arulmigu Meenakshi Amman College of Engg., Thiruvannamalai Dt, Near Kanchipuram, Anna University, IN
2 Arulmigu Meenakshi Amman College of Engg., Thiruvannamalai Dt, Near Kanchipuram, Anna University, IN
Source
Data Mining and Knowledge Engineering, Vol 6, No 4 (2014), Pagination: 139-145Abstract
Preference aware relational database system is that transparently and efficiently handles queries with different users receive different results based on their personal interests. Preference database employs a preference keyword search knowing the database complicated queries by utilizing user comprises the standard relational operators extended to handle scores and confidences preferences. The conditional part acts as soft constraint that determines which tuples are scored without disqualifying any tuples from the query result. PrefDB separates preference evaluation from tuple filtering. For the first time formalized and solve the problem of effective keyword search over encrypted server data while maintaining keyword privacy. It allows us to define the algebraic properties of the prefer operator and build generic query optimization and processing strategies that are applicable regardless of the type of reference specified in a query or the expected type of answer and separation is a distinguishing feature of work with respect to previous works. Keyword search searching inputs exactly match the predefined keywords based on keyword similarity semantics.Keywords
Database Query, Matchmaking, Query Engine, Query Personalization, Search Context, Search Engine, Semantic Web, Users Preferences.
- Prevalence of Iodine and Iron Deficiencies among Selected School Children and the Effect of Supplementation of Double Fortified Salt
Abstract Views :215 |
PDF Views:0
Authors
P. Umadevi
1,
R. Parvatham
2
Affiliations
1 Dr. N.GP. Arts and Science College, Coimbatore -641 035, IN
2 Avinashilingam Deemed University, Coimbatore - 641 043, IN
1 Dr. N.GP. Arts and Science College, Coimbatore -641 035, IN
2 Avinashilingam Deemed University, Coimbatore - 641 043, IN
Source
The Indian Journal of Nutrition and Dietetics, Vol 43, No 10 (2006), Pagination: 420-428Abstract
The importance of micronutrients in health and diseases has been receiving increasingly greater attention for the past three decades. Iodine Deficiency Disorders (IDD) and Iron Deficiency Anemia (IDA) are the two major micronutrient deficiency diseases with adverse consequences world wide especially for women of reproductive age and young children.- Effect of Mercury Exposure on Vigna unguiculata (Cowpea) Seeds
Abstract Views :165 |
PDF Views:5
Authors
Affiliations
1 Department of Biotechnology, Karunya University, Karunya Nagar, Coimbatore-641 114, T.N., IN
2 Department of Biochemistry, Dr. N.G.P. Arts and Science College, Coimbatore-641 035, T.N., IN
1 Department of Biotechnology, Karunya University, Karunya Nagar, Coimbatore-641 114, T.N., IN
2 Department of Biochemistry, Dr. N.G.P. Arts and Science College, Coimbatore-641 035, T.N., IN
Source
Nature Environment and Pollution Technology, Vol 8, No 1 (2009), Pagination: 53-58Abstract
Vigna unguiculata (Cowpea) seeds were grown under controlled environment in solution of mercury at different concentrations. The eco-toxicity of mercury on the seed germination, early seedling growth, metabolite level, enzyme activities and the uptake of heavy metal content in the seeds were tested. It may be concluded that the inhibition of germination, rate of germination and growth of seeds of Vigna unguiculata in response to mercury demonstrate that they are suppressed not only the protrusion of radical or delayed the germination but also retarded the growth. The seedling growth is more sensitive to heavy metal (Hg2+) in comparison to seed germination. Mercury treatment is potentially toxic to Vigna unguiculata ischolar_main than shoot. Absorption depends on the ability of the ischolar_main and may have an influence on synthesis of protein, carbohydrate, activity of enzyme and phenolic content, some of which can be enhanced, while others get inhibited. The sensitivity of Vigna unguiculata seeds in terms of biochemical changes and enzyme activities was remarkably noticeable. The results suggest that biochemical changes and enzyme activity in Vigna unguiculata plants is promising indicator of heavy metal toxicity. Vigna unguiculata assay should be further explored so that its value can be evaluated when more data are available.Keywords
Vigna unguiculata Seed, Germination Seedling, Growth Mercury Toxicity, Antioxidant, Metabolites.Full Text
- Piperpep - A Database of Experimentally Generated Peptides from Black Pepper (Piper nigrum L.)
Abstract Views :250 |
PDF Views:80
Authors
Affiliations
1 Division of Crop Improvement, ICAR-Indian Institute of Spices Research, Kozhikode 673 012, IN
2 Division of Crop Protection, ICAR-Indian Institute of Spices Research, Kozhikode 673 012, IN
1 Division of Crop Improvement, ICAR-Indian Institute of Spices Research, Kozhikode 673 012, IN
2 Division of Crop Protection, ICAR-Indian Institute of Spices Research, Kozhikode 673 012, IN
Source
Current Science, Vol 111, No 9 (2016), Pagination: 1453-1455Abstract
The Piperpep database is a compilation of peptide data from mass spectrometry analysis of a medicinally important export oriented crop - black pepper, developed by the fact that any mass spectrometry derived data would be an excellent source for genome annotation in future. This database has 1001 peptides, including 36 antimicrobial peptides annotated from the leaf of black pepper. The user friendly browsing and search tools would help the researcher with crop improvement in black pepper and also in other crops via peptide or protein data. The information on antimicrobial peptides in this database is expected to cater towards development of new drugs for agricultural and medicinal uses.Full Text
References
- Ravindran, P. N., In Black Pepper (Piper nigrum L.) (ed. Ravindran, K. C.), Harward Academic Publishers, 2000, pp. 1–22.
- Kuster, R., Proteomics, 2001, 1, 641–650.
- Mann, M. and Pandey, A., Trends Biochem. Sci., 2001, 26, 54–61.
- Kalume, E. D., BMC Genomics, 2005, 6, 128.
- Goyal, R. K. and Matoo, A., Plant Sci., 2014, 228, 135–149.
- Umadevi, P. and Anandaraj, M., Plant Omics, 2015, 8, 500–507.
- Altschul, S. F., J. Mol. Biol., 1990, 215, 403–410.
- Numerical Study on the Effect of Angle of Inclination on Magnetoconvection Inside Enclosure with Heat Generating Solid Body
Abstract Views :391 |
PDF Views:3
Authors
Affiliations
1 Department of Mathematics, Dr. NGP Arts and Science College, Tamilnadu, IN
2 Department of Mathematics, Bharathiar University, Tamilnadu, IN
3 Department of Mechanical Engineering, Firat University, TR
1 Department of Mathematics, Dr. NGP Arts and Science College, Tamilnadu, IN
2 Department of Mathematics, Bharathiar University, Tamilnadu, IN
3 Department of Mechanical Engineering, Firat University, TR
Source
The Journal of the Indian Mathematical Society, Vol 86, No 3-4 (2019), Pagination: 341-358Abstract
Convective ow and heat transfer of uid inside a square en- closure having heat generating solid body, with various thermal boundary conditions is investigated numerically. The top wall of the enclosure is adiabatic, both the bottom and right walls are kept at constant temper- ature, while the left wall is heated using sin function. Numerical simu- lations is carried out by solving the governing equations using SIMPLE algorithm by means of the nite-volume method with power-law scheme. The important parameters focused are angle of inclination of the enclo- sure, area ratio of solid-enclosure, Hartmann number and temperature dierence ratio of solid- uid, which are ranges 0o - 90o, 0:0625 - 0:5625, 0 - 100 and 0 - 50, respectively. Thermal conductivity ratio of solid- uid is xed as 5 and Rayleigh number as 105.Keywords
Angle of Inclination, Convection, Finite Volume Method, Hartmann Number and Sinusoidal Heating.References
- An, C., Vieira, C.B., Su, J., Integral transform solution of natural convection in a square cavity with volumetric heat generation, Braz. J. Chem. Eng. 30 (2013), 883-896.
- Basak, T., Roy, S., Balakrishnan, A.R., Effects of thermal boundary conditions on natural convection flows within a square cavity, Int. J. Heat Mass Trans. 49 (2006), 4525-4535.
- Bhuvaneswari M, Sivasankaran S, Kim Y.J., Magnetoconvection in a square enclosure with sinusoidal temperature distributions on both side walls, Numer. Heat Transfer: Part A. 59 (2011), 167-184.
- Casado, A.R., Flor, F.J.S., Vera, E.C., Ramos, J.S., New natural convection heat transfer correlations in enclosures for building performance simulation, Engi. Appli. Comp. Flud Mech. 11 (2017), 340-356.
- Davis, G.D.V., Natural convection of air in a square cavity: A benchmark numerical solutions, Int. J. Numer. Metho. Flud. 3 (1983), 249-264.
- Devaraj, C., Muthuswamy, E., Kandasamy, S., Numerical investigation of laminar natural convection in inclined square enclosure with the influence of discrete heat source, J. Appl. Mathematics, Article ID 985218, In press.(2015)
- House J.M., Beckermann, C., Smith, T.F., Effect of centered conducting body on natural convection heat transfer in an enclosure, Numer. Heat Trans. Part A: Appl. 18 (1990), 213-225.
- Joshi, M.V., Gaitonde, U.N., Mitra, S.K., Analytical study of natural convection in a cavity with volumetric heat generation, J. of Heat Trans. 128 (2006), 176-182.
- Lage J.I., Bejan, A., The resonance of natural convection in an enclosure heated periodically from the side, Int. J. Heat Mass Trans. 36 (1993), 2027-2038.
- Nithyadevi, N., Umadevi, P., Natural convection around a heat conducting and generating solid body inside a square enclosure with different thermal boundaries, J. Kor. Soc. Indus. Appl. Mathematics. 19 (2015), 459-479.
- Nithyadevi, N., Umadevi, P., Natural convection in a tilted square enclosure having heat generating solid body and with various thermal boundaries, Procedia Eng. 127 (2015), 1235-1242.
- Obayedullah, M., Chowdhury, M.M.K., Rahman, M.M., Natural convection in a rectangular cavity having internal energy sources and electrically conducting fluid with sinusoidal temperature at the bottom wall, Int. J. Mech. Mater. Eng. 8 (2013), 73-78.
- Oh, J.Y., Ha, M.Y., Kim, K.C., Numerical study of heat transfer and flow of natural convection in an enclosure with a heat-generating conducting body, Numer. Heat Trans. Part A: Appl. 31 (1997), 289-303.
- Oztop, H.F., Oztop, M., Varol, Y., Numerical simulation of magneto-hydrodynamic buoyancy induced flow in a non-isothermally heated square enclosure, Commun. Nonlinear Sci. Numer. Simulation. 14 (2009), 770-778.
- Oztop H.F., Al-Salem, K., Varol, Y., Pop, I., Firat, M., Effects of inclination angle on natural convection in an inclined open porous cavity with non-isothermally heated wall, Int. J. Numer. Methods Heat Fluid Flow. 22 (2012), 1053-1072.
- Patankar, S.V., Numerical Heat Transfer and Fluid Flow, Hemisphere, Washington, DC, 1980.
- Patil, P.M., Effects of free convection on the oscillatory flow of a polar fluid through a porous medium in the presence of variable wall heat flux, Jou. Engi. Phy. Thermo. 81 (2008), 905-922.
- Patil, P.M., Kulkarni, P.S., Free convective oscillatory flow of a polar fluid through a porous medium in the presence of oscillating suction and temperature., Jou. Engi. Phy. Thermo. 82 (2009), 1138-1145.
- Pirmohammadi, M., Ghassemi, M., Effect of magnetic field on convection heat transfer inside a tilted square enclosure, Int. Commun. Heat Mass Trans. 36 (2009), 776-780.
- Pirmohammadi, M., Effect of inclination angle on magneto-convection inside a tilted enclosure, Magnetics-IEEE Trans. 46 (2010), 3697-3700.
- Rudraiah, N., Barron, R.M., Venkatachalappa, M., Subbaraya, C.K., Effect of a magnetic field on free convection in a rectangular enclosure, Int. J. Eng. Sci. 33 (1995), 1075-1084.
- Sarris, I.E., Kakarantzas, S.C., Grecos, A.P., Vlachos, N.S., MHD natural convection in a laterally and volumetrically heated square cavity, Int. J. Heat Mass Transfer. 48 (2005), 3443-3453.
- Sarris, I.E., Lekakis, I., Vlachos, N.S., Natural convection in a 2D enclosure with sinusoidal upper wall temperature, Numer. Heat Transfer: Part A, 42 (2002), 513-530.
- Sathiyamoothy, M., Basak, T., Roy, S., Steady natural convection flows in a square cavity with linearly heated side wall(s), Int. J. Heat Mass Trans. 50 (2007), 766-775.
- Tsay, Y.L., Cheng, J.C., Chang, T.S., Enhancement of heat transfer from surface-mounted block heat sources in a duct with baffles, Numer. Heat Transfer Part A: Appl. 43 (2003), 827-841.
- Varol, Y., Oztop, H.F., Koca, A., Ozgen, F., Natural convection and fluid flow in inclined enclosure with a corner heater, Appl. Therm. Eng. 29 (2009), 340-350.
- Wu, F., Wang, G., Numerical simulation of natural convection in an inclined porous cavity under time-periodic boundary conditions with a partially active thermal side wall, The Roy. Soc. Chem. Adv. 7 (2017), 17519-17530.