Shakila G.,Government of Puducherry |
Periandy S.,Tagore Arts College |
Ramalingam S.,Avc College
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2012
The FT-IR and FT-Raman spectra of the compound 1,2-dibromobenzene have been recorded in the region 4000-100 cm -1. The vibrational analysis has been made using HF and DFT (B3LYP and LSDA) level of theory by employing 6-31 +G (d, p) and 6-311 ++G (d, p) basis sets. Optimized geometrical parameters have been calculated, interpreted and compared with the reported experimental values of some halogen-substituted benzene. The experimental geometrical parameters show satisfactory agreement with the theoretical prediction of HF and DFT. The geometrical structure of the compound is fractured by the substitutions of couple of Br in the ring. From the vibrational assignments it is observed that, the vibrational pattern of the fundamental modes is realigned slightly with respect to the substitutions. The simulated FT-IR and FT-Raman spectra of the compound for different methods are compared with the experimental spectra. The impact of Br in the vibrational assignments of the molecule is also investigated. © 2011 Elsevier B.V. All rights reserved.
Shakila G.,Government of Puducherry |
Periandy S.,Tagore Arts College |
Ramalingam S.,Avc College
Spectrochimica Acta - Part A: Molecular and Biomolecular Spectroscopy | Year: 2011
The FT-Raman and FT-IR spectra for 3-Ethylpyridine (3-EP) have been recorded in the region 4000-100 cm-1 and compared with the harmonic vibrational frequencies calculated using HF/DFT (B3LYP) method by employing 6-31G(d,p) and 6-311++G(d,p) basis set with appropriate scale factors. IR intensities and Raman activities are also calculated by HF and DFT (B3LYP) methods. Optimized geometries of the molecule have been interpreted and compared with the reported experimental values of some substituted benzene. The experimental geometrical parameters show satisfactory agreement with the theoretical prediction from HF and DFT. The scaled vibrational frequencies at B3LYP/6-311++G(d,p) seem to coincide with the experimentally observed values with acceptable deviations. The theoretical spectrograms (IR and Raman) have been constructed and compared with the experimental FT-IR and FT-Raman spectra. Some of the vibrational frequencies of the pyridine are effected upon profusely with the C2H5 substitutions in comparison to pyridine and these differences are interpreted. © 2010 Elsevier B.V. All rights reserved.
Pramod K.V.,Cochin University of Science and Technology |
Manju C.,Government of Puducherry
Journal of Computer Science | Year: 2010
Problem statement: Cryptosystem using linear codes was developed in 1978 by Mc-Eliece. Later in 1985 Niederreiter and others developed a modified version of cryptosystem using concepts of linear codes. But these systems were not used frequently because of its larger key size. In this study we were designing a cryptosystem using the concepts of algebraic geometric codes with smaller key size. Error detection and correction can be done efficiently by simple decoding methods using the cryptosystem developed. Approach: Algebraic geometric codes are codes, generated using curves. The cryptosystem use basic concepts of elliptic curves cryptography and generator matrix. Decrypted information takes the form of a repetition code. Due to this complexity of decoding procedure is reduced. Error detection and correction can be carried out efficiently by solving a simple system of linear equations, there by imposing the concepts of security along with error detection and correction. Results: Implementation of the algorithm is done on MATLAB and comparative analysis is also done on various parameters of the system. Attacks are common to all cryptosystems. But by securely choosing curve, field and representation of elements in field, we can overcome the attacks and a stable system can be generated. Conclusion: The algorithm defined here protects the information from an intruder and also from the error in communication channel by efficient error correction methods. © 2010 Science Publications.
Usharani B.,University of Madras |
Muthuraj M.,Government of Puducherry
African Journal of Microbiology Research | Year: 2010
Production and partial purification of protease enzyme by Bacillus laterosporus was the aim of this study. B. laterosporus was allowed to grow in shake flask broth culture for purpose of inducing protease enzyme. The protease enzyme was purified by ammonium sulfate precipitation followed by dialysis and further concentrated by Amicon tubes. After concentration, the protein was subjected to 12% Zymogram gel with gelatin and the molecular weight of the protease enzyme was 15 kDa. The protease activity increased as there was increase in enzyme concentration; optimum substrate concentration (starch) was 1.0% (w/v); an optimum incubation temperature was 40°C. Purified protease enzyme had a maximum activity at pH 7.0 of phosphate buffer and the optimum incubation time was 24 h. The protease isolated from B. latrosporus is a mesophilic protease. It is stable at pH 7, at 40°C temperature, and this enzyme can be exploited commercially. ©2010 Academic Journals.
Thirunavukarasu S.,Government of Puducherry
Journal of Clinical Imaging Science | Year: 2011
Bilateral temporal and frontal lobe involvement is a common characteristic of herpes simplex encephalitis (HSE). Clinical sequelae of herpes simplex encephalitis may manifest sometimes as Kluver Bucy syndrome (KBS). In herpes simplex encephalitis, apart from frontal lobe, extra temporal involvement is rare and uncommon. We report a case of HSE manifesting clinically as KBS with a rare radiological finding of temporal and extratemporal involvement of pons.
Venkatachalapathy T.S.,Government of Puducherry
Indian Journal of Surgery | Year: 2014
Following reports of heparin use in burn treatment, an ethics-committee-approved prospective randomized study with controls compared results obtained using traditional usual burn treatment without heparin with results in similar patients similarly treated with heparin added topically. The subjects were 100 consecutive burn patients (age <15 years) with second-degree superficial and deep burns of 5–45 % total body surface area size. Two largely similar cohort groups—a control group (C) and a heparin group (H) with 50 subjects per group—were randomly treated. The 50 control group patients received traditional routine treatment, including topical antimicrobial cream, debridement, and, when needed, skin grafts in the early postburn period. The 50 heparin group patients, without topical cream, were additionally treated, starting on day 1 postburn, with 200 IU/ml sodium aqueous heparin solution USP (heparin) dripped on the burn surfaces and inserted into the blisters two to four times a day for 1–2 days, and then only on burn surfaces for a total of 5–7 days, before skin grafting, when needed. Thereafter, control and heparin group treatment was similar. It was found that the heparin patients complained of less pain and received less pain medicine than the control patients. The heparin group needed fewer dressings and oral antibiotics than the control group. The 50 heparin group patients had 4 skin graftings (8 %), while the 50 control group patients had 10 (20 %). Five control group patients died (mortality 10 %). No heparin group patients died. The number of days in hospital for the heparin group versus control group was significantly less (overall P < 0.0001): 58 % of heparin group patients were discharged within 10 days versus 6 % of control group patients; 82 % of heparin group patients were out in 20 days versus 14 % of control group patients; 98 % of the heparin group versus 44 % of the control group were out in 30 days; and while 100 % of heparin group patients were discharged by day 40, 56 % of the control group required up to another 10 days. Burns in heparin group patients healed on average in 15 days (maximum period 37 days) versus an average of 25 days (maximum >48 days) in control group patients (P < 0.0006). Procedures and costs in the heparin group were much reduced compared with the control group. Differences between the heparin and control groups are presented for the sake of comparison. It was concluded that heparin applied topically for 5–7 days improved burn treatment: it reduced pain, pain medicine, dressings, and use of antibiotics; it significantly reduced IV fluids (P < 0.04), days in hospital (P < 0.0001), and healing time (P < 0.0006); and it reduced skin grafts, mortality, and costs. © 2012, Association of Surgeons of India.
Prabhu M.,Health Science University |
Radha R.,Government of Puducherry
Asian Journal of Pharmaceutical and Clinical Research | Year: 2012
A series of some novel aryl imidazole derivatives were prepared by the condensation of compounds containing primary aromatic amine and aryl aldehydes to give respective Schiff's bases, which was further reacted with ammonium acetate and isatin in the presence of glacial acetic acid. The synthesized compounds were characterized by using IR and screened for their invitro antibacterial and invitro antihelmintic activity. All the synthesized compounds showed moderate to good antibacterial activity against the tested bacteria Bacillus subtilis (Gram positive organism) and Klebsiella pneumonia (Gram negative organism) and moderate to good anthelmintic activity against Indian earthworm Pheretima posthuma.
Little Flower J.R.,The Government of India |
Balamurugan E.,Government of Puducherry
British Journal of Medical Practitioners | Year: 2013
Aim: Organ donation rate in India is very poor. The factors contributing to donating and not donating an organ is not well known. Hence, the present study was conducted to identify the perceived barrier and facilitator of organ donation among general public of Puducherry, India. Method: A cross sectional explorative study was undertaken with a sample of 400 eligible subjects from the general public of puducherry. Each participant underwent a face to face interview with the help of a structured questionnaire; data collected was analyzed using appropriate descriptive and inferential statics in SPSS. Result: Of the 400 subjects interviewed, the most common perceived barriers identified were opposition from family (82.8%) and fear (72.4%). The most common perceived facilitators were thought that organ donation would save someone's life (95.9%) and sense of improved humanity (95%). While associating the public intention to donate organ with select variables only educational status was found to be positively associated (p =0.001). Conclusion: From the available scientific evidence it is conducted that the knowledge of organ donation remain still poor and the identified barriers and facilitators should be taken in the account while motivating the general public to donate organ in future.
Vadivel T.,Bharathiar University |
Dhamodaran M.,Government of Puducherry
International Journal of Biological Macromolecules | Year: 2016
Chitosan can be modified chemically by condensation reaction of deacetylated chitosan with aldehyde in homogeneous phase. This condensation is carried by primary amine ([sbnd]NH2) with aldehyde ([sbnd]CHO) to form corresponding schiff base. The chitosan biopolymer schiff base derivatives are synthesized with substituted aldehydes namely 4-hydroxy-3-methoxy benzaldehyde, 2-hydroxy benzaldehyde, and 2-hydroxy-3-methoxy benzaldehyde, becomes a complexing agent or ligand. The Ruthenium(III) complexes were obtained by complexation of Ruthenium with schiff base ligands and this product exhibits as an excellent solubility and more biocompatibility. The novel series of schiff base Ruthenium(III) complexes are characterized by Elemental analysis, FT-IR spectroscopy, and Thermo-gravimetric analysis (TGA). The synthesized complexes have been subjected to antibacterial study. The antibacterial results indicated that the antibacterial activity of the complexes were more effective against Gram positive and Gram negative pathogenic bacteria. These findings are giving suitable support for developing new antibacterial agent and expand our scope for applications. © 2015 Elsevier B.V.
Vishnupriya R.,Government of Puducherry |
Rajarajeswaram P.,Government of Puducherry
Journal of Obstetrics and Gynecology of India | Year: 2011
Objectives The purpose of this study is to analyze the potential benefits of aerobic exercises at different intensities in the management of pre menstrual syndrome. Methods The study design is quasi-experimental; sixty-one female subjects were randomly allocated into three groups, Group A (mild intensity), Group B (moderate intensity) and Group C (severe intensity) and the intervention were given for 6 weeks. The study setting was general community settings. The outcome measures were menstrual symptom questionnaire, VO2 max, forced vital capacity (FVC), maximum voluntary ventilation (MVV) and lipid profile (HDL, LDL, TGL). Results There is significant decrease in menstrual symptoms in both Groups B and C. However, Group C improved with increased rate of perceived exertion. LDL levels did not change significantly but HDL, TGL, VO2 max, FVC, and MVV improved significantly in Groups B and C, but remains significantly unchanged in Group A. Conclusions This study encourages the employment of regular, moderate intensity aerobic exercise as a potential intervention for pre menstrual syndrome. . © 2012 Federation of Obstetric & Gynecological Societies of India.