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Search Results: 1 - 10 of 466894 matches for " A. Rao "
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Ehlers-Danlos syndrome with monostotic fibrous dysplasia
Rao A
Journal of Postgraduate Medicine , 1979,
Abstract: An unusual case of Ehlers-Danlos syndrome with monostotic fibrous dysplasia of the humorus is presented. The other orthopae-dic manifestations, its complications and associated features are re-viewed and summarised.
Laparoendoscopic Single Site Donor Nephrectomy: The Preliminary Experience  [PDF]
Santosh A. Olakkengil, M. Mohan Rao
Open Journal of Organ Transplant Surgery (OJOTS) , 2012, DOI: 10.4236/ojots.2012.24013
Abstract: Methods: In our endeavour to give patients visibly scarless surgery we have raised the bar to the next level in laparoscopic donor nephrectomy. We have moved from standard laparoscopy to LESS Laparoendoscopic single site donor nephrectomy. 1997 we introduced laparoscopic donor nephrectomy in Australia. In September 2008 we did our first LESS donor nephrectomy. September 2008 to October 2009, 6 laparoscopic donor nephrectomies were performed using a single port. Two types of devices have been used R-port and SILSTM Port. The device was inserted through an intra umbilical incision using open technique. Surgical technique was similar to the laparoscopic method and standard rigid and roticulator laparoscopic instruments were used. Results: All were completed with no major complications. In 3 an additional 5mm port was added to reduce the dissection time. Average operating time was 4.4 hours, warm ischemia time was an average of 7.16 minutes and post surgery hospital stay was an average of 1.41 days. All grafts functioned immediately after transplantation. Conclusion: Initial experience with this technique is promising. It is too early to draw any conclusions on its benefits to the donor in terms of reduced morbidity. However the donors appreciated the cosmesis. It is yet another learning curve for the transplant surgeon.
Mica Filled PVC Composites: Performance Enhancement in Dielectric and Mechanical Properties with Treated/Untreated Mica of Different Particle Size and Different Concentration  [PDF]
S. P. Deshmukh, A. C. Rao
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2012, DOI: 10.4236/jmmce.2012.112014
Abstract: Polyvinyl chloride (PVC) of different grades is the second most commonly used polymer for fabrication of electric cables and wires after polyethylene. Cables of domestic and industrial use of various capacities are fabricated using different compounds of PVC. Mica is useful particulate filler extensively used to enhance the performance of many polymeric materials. It surface resistance and arc resistance improving its mechanical properties. In the present research work mica filled PVC composites of different concentrations were prepared using untreated and surface treated water ground mica of different particle size. Mica filled PVC composites were compounded for various compositions and test samples were prepared using compression moulding process. These samples were tested for electrical insulation and mechanical properties. The results shows enhancement in dielectric properties with improvement in Young’s modulus, stiffness, reduction in elongation at break and slight increase in shore D hardness of composites. Scanning electron microscopy was used to test the morphology of the samples which has shown proper distributions and adhesion of the filler mica in PVC matrix. There was some effect of surface treatment of mica on its mechanical and dielectric properties of the composite.
Free radical toxicity and antioxidants in Parkinson's disease
Sudha K,Rao A,Rao S,Rao A
Neurology India , 2003,
Abstract: Erythrocyte lipid peroxidation, oxidative hemolysis, erythrocyte antioxidant enzymes, viz. superoxide dismutase, glutathione reductase, glutathione peroxidase, catalase and plasma antioxidants, viz. vitamin A, vitamin E, vitamin C and ceruloplasmin have been determined by spectrophotometric methods in 15 patients with Parkinson's disease (PD) and in 50 controls. Lipid peroxidation, oxidative hemolysis and plasma ceruloplasmin were significantly higher in PD patients as compared to normals. Erythrocyte antioxidants in PD patients were not significantly different from the controls. However, plasma vitamin C in PD patients was significantly lower than the controls. It is concluded that these patients are under oxidative stress which points to a possible involvement of free radicals in PD.
Plasma antioxidant vitamins in brain tumors
Rao G,Rao A,Raja A,Rao S
Neurology India , 2003,
Abstract: Plasma levels of vitamins A, E and C were analyzed in 102 patients with different types of brain tumors. A follow-up study was done with 27 postoperative patients. On comparison with plasma from normal individuals, vitamin A and E were decreased, but the decrease was statistically insignificant. Vitamin C levels remained in the normal range. In a comparative study of preoperative and postoperative cases, plasma vitamin A levels in postoperative glioma patients were significantly higher than those in the pre-operative state. There was no significant difference in the plasma level of vitamins C and E. The results of the present study suggest that the plasma antioxidant vitamins are not altered effectively in brain tumor cases.
Cation Distribution in Co0.7Me0.3Fe2O4 (Me = Zn, Ni and Mn)  [PDF]
A. Mahesh Kumar, P. Appa Rao, M. Chaitanya Varma, Gsvrk Choudary, K. H. Rao
Journal of Modern Physics (JMP) , 2011, DOI: 10.4236/jmp.2011.29132
Abstract: Co0.7Me0.3Fe2O4 (Me = Zn, Ni and Mn) were synthesized through co-precipitation method. Cationic distribution for these ferrites was proposed on the basis of magnetization measurements and available occupancy of the substituent ions into the spinel lattice. Theoretical lattice constant calculations confirm the proposed cationic distributions were the correct ones.
Medial swivel dislocation of the talonavicular joint
Datt N,Rao A,Rao D
Indian Journal of Orthopaedics , 2009,
Abstract: Medial swivel dislocation, a variant of subtalar dislocation is uncommon. A 35 years old male presented after 6 weeks old injury to left ankle following motor cycle accident. He had pain, swelling around ankle and was unable to bear weight on left foot. Clinical examination revealed diffuse swelling and tenderness in mid foot region, His plain X rays and CT scan showed talonavicular dislocation with compression defect of the head of the talus. He was treated by open reduction and K-wire fixation. At 32 months follow up foot was painless, stable with normal range of ankle and subtalar motion.
Silica enrichment, graphic granite and aquamarine growth: a new exploration guide
Anais da Academia Brasileira de Ciências , 2002, DOI: 10.1590/S0001-37652002000300014
Abstract: granitic pegmatites are traditionally known to contain graphic, perthitic and myrmekitic intergrowths related to quartz and k- and na- feldspars. they are further considered to characterise the pegmatite types distinguishing them from the granites and other related plutonic rock types. graphic granite is accepted also as a synonym to granitic pegmatite. systematic studies, by the author and colleagues, on the granitic pegmatite gem deposits have permitted the definition of two aquamarine gem provinces in ene brazil, one in the neoproterozoic and the other in the archaean sequences. potash feldspars in the pegmatites in the former show perthitic intergrowths, whereas in the latter graphic intergrowth dominates with anomalously coarse centimetric quartz along the cleavages of k-feldspar. several granitic pegmatites hosted in archaean complex, in lages pintadas aquamarine province, santa cruz, rn state, present this texture-structure. graphic intergrowth is attributed to the eutectic crystallization, succeeded by hydrothermal fluids with silica enrichment permitting the growth through diffusion and nucleation of quartz and along cleavages of potash feldspar. in the archaean terrain, the abundance of recycled chert forming metapsammitic migmatites traversed by numerous quartz veins and coarse graphic granites, has contributed to the growth of beryl and also the aquamarines.
UV dominant optical emission newly detected from radioisotopes and XRF sources
Padmanabha Rao, M. A.;
Brazilian Journal of Physics , 2010, DOI: 10.1590/S0103-97332010000100007
Abstract: the current paper reports first and definite experimental evidence for γ-, x-, or β radiation causing uv dominant optical radiation from (1) radiochemicals such as 131i; (2) xrf sources such as rb xrf source present as salts; and (3) metal sources such as 57co, and cu xrf sources. due to low quantum yield a need arose to develop two techniques with narrow band optical filters, and sheet polarizers that helped in the successful detection of optical radiation. the metal 57co spectrum observed at room temperature hinted that it could be optical emission from excited 57co atoms by a previously unknown phenomenon. in order to explain uv emission, it was predicted that some ev energies higher than that of uv, termed temporarily as bharat radiation are generated within the excited atom, while γ-, x-, or β radiation passes through core-coulomb field. in turn, the bharat energy internally produced within the excited atom causes uv dominant high-energy spectrum by valence excitation. as excited atoms become free from surrounding unexcited atoms by valence excitation, room temperature atomic spectra of solid radioisotopes and xrf sources became a possibility. it implies existence of temporary atomic state of solids. the experimental evidence that γ-, x-, and β radiations causing uv dominant optical emission from within excited atoms of radioisotopes suggests the possibility for solar γ-, x-, and β radiations causing euv by the atomic phenomenon described here.
Multi focal tuberculosis
Lakshmi T,Rao A
Indian Journal of Dermatology, Venereology and Leprology , 2002,
Abstract: A 19 - year-old salesman presented with multiple fusiform, fluctuant, non-tender swellings involving dorsum of the left hand, left index finger and little finger. He also had multiple sinuses with puckered scars on the right thumb, left little finger and right elbow. He was provisionally diagnosed as tuberculous gumma. X-ray chest showed apical cavity and infiltration suggestive of tuberculosis X-ray both hands showed osteolytic lesions with pathological fracture. AFB was cultured on Lowenstein Jensen medium and the patient was given antituberculosis treatment with clinical improvement.
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