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Search Results: 1 - 10 of 401452 matches for " M. Sujata "
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The Occurrence of TDS and Conductivity of Domestic Water in Lumding Town of Nowgong District of Assam, N.E. India
M.K.Paul,Sujata Sen
Current World Environment , 2012, DOI: 10.12944/cwe.7.2.09
Abstract: Total dissolved solid (TDS) and Conductivity are important parameters to determine the quality of water. The seasonal variations in TDS are mainly due to the ionic composition of water. In the present study the seasonal variations in TDS and Conductivity of Lumding Town were studied from May, 2001 to April, 2004. It was found that the TDS of Dug well, Ring well and Ponds were maximum high, but the TDS of River water and Supply water were appreciable.
In Vitro Corrosion Studies of Surface Modified NiTi Alloy for Biomedical Applications
Manju Chembath,J. N. Balaraju,M. Sujata
Advances in Biomaterials , 2014, DOI: 10.1155/2014/697491
Abstract: Electropolishing was conducted on NiTi alloy of composition 49.1 Ti-50.9 Ni at.% under potentiostatic regime at ambient temperature using perchloric acid based electrolyte for 30?sec followed by passivation treatment in an inorganic electrolyte. The corrosion resistance and biocompatibility of the electropolished and passivated alloys were evaluated and compared with mechanically polished alloy. Various characterization techniques like scanning electron microscopy, atomic force microscopy, and X-ray photoelectron spectroscopy were employed to analyze the properties of surface modified and mechanically polished alloys. Water contact angle measurements made on the passivated alloy after electropolishing showed a contact angle of 35.6°, which was about 58% lower compared to mechanically polished sample, implying more hydrophilicity. The electrochemical impedance studies showed that, for the passivated alloy, threefold increase in the barrier layer resistance was obtained when compared to electropolished alloy due to the formation of compact titanium oxide. The oxide layer thickness of the passivated samples was almost 18 times higher than electropolished samples. After 14 days immersion in Hanks’ solution, the amount of nickel released was 315?ppb which was nearly half of that obtained for mechanically polished NiTi alloy, confirming better stability of the passive layer. 1. Introduction Binary NiTi alloys containing 50-51?at.% Ni are widely used for biomedical applications owing to their unique shape memory as well as superelastic properties and are preferred over conventional implant materials like Co-Cr-Mo alloys and stainless steel for specific applications [1]. These alloys are reported to exhibit surface passivity due to the presence of native titanium oxide layer which prevents the alloy from corrosion under the influence of body fluids and hence they possess superior biocompatibility compared to stainless steel [2, 3]. In spite of its remarkable properties, nickel elution is still a major issue of concern in using NiTi alloys, as high nickel content creates serious health hazards when implanted into human body. Human physiological environment is complex and the biocompatibility of the material needs to be established prior to use as an implant device. Nickel elution on immersion of NiTi in simulated body fluids (SBF) has been studied by various researchers [4–6]. Since nickel elution produces severe allergic issues, many of the research works on NiTi alloys were focused on improving the biocompatibility and corrosion resistance by suitable surface
Effect of Oxalate Precursor Formation Temperature on Magnetic Properties of Nicuzn Ferrites  [PDF]
Neelam S. Shinde, Sujata S. Khot, Bhimrao P. Ladgaonkar, Bharat B. Kale, Sanjay Apte, Prasad M. Tamhankar, Shrikant C. Watawe
Materials Sciences and Applications (MSA) , 2011, DOI: 10.4236/msa.2011.28148
Abstract: Ni-Cu-Zn ferrites with general formula Ni0.5Zn0.5-x/2Cux/2Fe2O4 (with x = 0.3, 0.4, 0.5 and 0.6) have been synthesized using oxalate precursor method with different precursor reaction temperatures in the range 10℃ to 70℃. The Curie temperatures obtained using AC susceptibility measurements are found to be in the range 150℃ to 350℃, the measurements also show single domain structure for all the samples except few compositions obtained at 35℃ precursor reaction temperature, show a multi-domain behaviour. The saturation magnetization is found to be in the range 20 to 51 emu/gm, while the magnetic moment is found to be in the range 0.63 to 1.5 µB. The hysteresis losses were found to be maximum for the samples obtained at precursor reaction temperature of 35℃. The grain size is found to be in the range 0.4 to 2.0 µm.
Assessment of diagnostic accuracy of high-resolution ultrasonography in determination of temporomandibular joint internal derangement
Byahatti Sujata,Ramamurthy B,Mubeen M,Agnihothri P
Indian Journal of Dental Research , 2010,
Abstract: Aim : The aim of this study was to determine the value of dynamic high-resolution ultrasonography (HR-US) in the evaluation of internal derangements of a temporomandibular joint (TMJ) in the open and closed mouth position. Settings and Design : The study designed to collect the sample from the Outpatient Department of Oral Medicine and Radiology at GDC, Bangalore. Patients with pain, clicking, deviation, and tenderness were included in the study as a symptomatic group. The asymptomatic group was free of any symptoms. Materials and Methods : Maximum mandibular range of motion (Open and Closed) was performed during HR-US of TMJ in 100 consecutive patients, (50 symptomatic and 50 asymptomatic cases, a total of 400 joints, with 200 joints in the right and left closed and open mouth position;36 males and 64 females; age range, 16 - 50 years; mean age 27.56 years). Subsequently, the entire group, after clinical diagnosis, went for HR-US. Sonography confirmed the diagnosis by showing internal derangement in 34 (68%) of the symptomatic group and the remaining 16 (32%) patients failed to show any derangement. In the asymptomatic group 40 patients did not show any pathology associated with TMJ, whereas, 10 patients showed internal derangement. The data obtained was analyzed statistically. Results : HR-US performed during the maximal range of motion (Open and Closed) helped to detect 34 instances (68 joints) of internal derangement, which were true positive cases, whereas, 16 patients (32 joints) showed a false positive finding for internal derangement (ID). The results obtained showed a sensitivity of 64%, specificity of 88%, positive predictive value of 84%, and a negative predictive value of 71%, with an accuracy of 76%. Conclusions : Dynamic HR-US being non-invasive can provide valuable information about internal derangement of the TMJ in mandibular closed mouth than open mouth position.
Clinical profile of HIV infection
Khopkar Uday,Raj Sujata,Sukthankar Ashish,Kulkarni M
Indian Journal of Dermatology, Venereology and Leprology , 1992,
Abstract: HIV seropositivity rate of 14 percent was observed amongst STD cases. Heterosexual contact with prostitutes was the main risk factor. Fever, anorexia, weight loss, lymphadenopathy and tuberculosis were useful clinical leads. Genital ulcers, especially chancroid, were common in seropositivies. Alopecia of unknown cause, atypical pyoderma, seborrhea, zoster, eruptive mollusca and sulfa-induced erythema multiforme were viewed with suspicion in high risk groups. Purpura fulminans, fulminant chancroid, vegetating pyoderma and angioedema with purpura were unique features noted in this study.
Familial early onset of type-2 diabetes mellitus and its complications
Mallikarjun V. Jali,Sanjay Kambar,Sujata M. Jali,Shivaraj Gowda
North American Journal of Medical Sciences , 2009,
Abstract: Background: Globally, the prevalence of chronic, non-communicable diseases is increasing at an alarming rate. Furthermore, approximately 197 million people worldwide have impaired glucose tolerance. Consequently, diabetes is rapidly emerging as a global health problem that threatens to assume a pandemic level by 2030. In Indian population, genetic predisposition to trigger diabetes at an early age as compared to western counterpart has been focused very much. Aim: To gain further insight into the positive correlation between the diabetes and family history was the objective of this study. Materials and Methods: Patients attending the Diabetes Centre, K.L.E.S Dr. Prabhakar. Kore Hospital and Medical Research Centre; J. N. Medical College; KLE University Belgaum, Karnataka- India, were recruited, diagnosed and analyzed as per WHO criteria. Results: The prevalence of diabetes was higher among patients with diabetic mother (25.6%) compared to patients with diabetic father (21.2%) and there was early onset of type -2 diabetes among patients having both parents with diabetic when compared to other patients. Conclusion: Based on the present observation, it would be appropriate to emphasize again that a strong family history for diabetes, would signal at an early age, the onset of diabetes perhaps with its complications.
Effect of Dual Inoculation of Arbuscular Mycorrhiza and Rhizobium on the Chlorophyll, Nitrogen and Phosphorus Contents of Pigeon Pea (Cajanus cajan L.)  [PDF]
Sujata Bhattacharjee, Gouri Dutta Sharma
Advances in Microbiology (AiM) , 2012, DOI: 10.4236/aim.2012.24072

The pot experiments were conducted in the Department of Life Science and Bioinformatics of Assam University, Silchar. The aim of the present study was to investigate the effect of dual inoculation of Arbuscular mycorrhiza (AM) (Glomus fasciculatum) and Rhizobium on the chlorophyll, nitrogen and phosphorus contents of pigeon pea (Cajanus cajan L.). The results revealed an overall increase in chlorophyll, nitrogen and phosphorus contents in the inoculated plants than uninoculated ones. Maximum chlorophyll contents were recorded in the plants dually inoculated with Glomus fasciculatum and Rhizobium. The combined application of Glomus fasciculatum and Rhizobium also remarkably increased the nitrogen and phosphorus contents of pigeon pea. The dual inoculation with microsymbionts revealed synergistic effect. The results suggest that dual inoculation of Glomus fasciculatum and Rhizobium have the potential to enhance the chlorophyll, nitrogen and phosphorus contents of pigeon pea.

Improved Quantification of Glomerular Filtration Rate and Differential Renal Function of Ectopic Kidneys in a Dual Head Gamma Camera  [PDF]
Gopal Sonai Muthu, Sujata Mitra
Open Journal of Medical Imaging (OJMI) , 2014, DOI: 10.4236/ojmi.2014.41003
Abstract: Introduction: Tc-99m Di-ethylene Tri-amine Penta Acetic Acid (DTPA) renogram is an accepted method to measure Glomerular Filtration Rate (GFR) of the kidneys. The depth and position of ectopic kidneys may vary. This may lead to variation in tissue attenuation and error in the computed GFR and Differential Renal Function (DRF) of each kidney. Objective: The present study was undertaken in patients with ectopic kidneys to improve the accuracy of GFR and DRF calculation in a renogram with single injection of Tc-99m DTPA on a dual head gamma camera. Materials and Method: The study was conducted on 55 patients with ectopic kidneys. Images were acquired on a dual head gamma camera simultaneously in anterior and posterior views. Both anterior and posterior image datasets were used to compute the GFR of the ectopic kidney by Gates method. Depth correction of the ectopic kidney was done using the lateral view image. Total GFR was calculated as the sum of the anterior dataset ectopic kidney GFR and the posterior dataset normal kidney GFR. DRF was calculated again, by using the anterior dataset GFR of the ectopic kidney and posterior dataset for normal kidneys. The total GFR calculated by our method was compared to the patient’s eGFR (based on serum creatinine, age and sex). Result: The GFR calculated by anterior data set in the ectopic kidney was significantly higher than that calculated by posterior dataset (p < 0.001). Similarly, the differential GFR of the ectopic kidney was higher when the anterior dataset was used (p
Binary Mixture of Tri-Octyl Amine and Cyanex 923 as Extractant for the Extraction of Zr (IV) from Acidic Chloride Medium  [PDF]
Bhikari Charan Bhatta, Sujata Mishra
International Journal of Nonferrous Metallurgy (IJNM) , 2014, DOI: 10.4236/ijnm.2014.32002

The extraction of zirconium (IV) from aqueous HCl solution by binary mixture TOA and Cyanex 923 using kerosene as diluent was studied. The effect of parameters like aqueous phase acid concentration, extractant concentration, chloride ion concentration, diverse ion effect, metal loading, nature of diluents and temperature on the extraction of Zr (IV) was investigated. The percentage of extraction of Zr(IV) became 100% with 0.1 M TOA and 0.01 M Cyanex 923 from 7 M HCl and also from 4 M HCl with 0.1 M TOA and 0.02 M Cyanex 923. Benzene was found to be effective diluent for the extraction of Zr(IV) with binary mixture of TOA and Cyanex 923. The positive enthalpy change and positive entropy change in the binary extraction system show endothermic process with increase in randomness. Stripping of Zr (IV) from the loaded organic phase containing mixture of TOA (0.1 M) and Cyanex 923 (0.01 M) indicated that HNO3 and Na2CO3 are the best stripping agents.

Golden Research Thoughts , 2013, DOI: 10.9780/22315063
Abstract: Today's world is the world of advertisement where marketers are keen about the importance of advertising the product. Basically the advertisements came into existence to communicate and educate the consumer about the product by the way of mass communication. Advertisers used the print as well as TV, Radio for the advertising purpose.
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