Search Results - (Author, Cooperation:S. M. Rao)

2011-09-23

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Animals ; Colitis/immunology/prevention & control ; Colon/cytology/*immunology/*microbiology ; Immune System/cytology/*immunology ; Immune Tolerance/immunology ; Immunity, Mucosal/immunology ; Metagenome/*immunology ; Mice ; Mice, Inbred C57BL ; Mice, Transgenic ; Receptors, Antigen, T-Cell/immunology/metabolism ; T-Lymphocytes, Regulatory/immunology/metabolism ; Thymus Gland/cytology/immunology

1573-6784

Springer Online Journal Archives 1860-2000

Process Engineering, Biotechnology, Nutrition Technology

Summary Particle supported biofilms of uniform thickness were generated in an aerobic fluidized-bed reactor with phenol as the carbon source. A method was developed for determining the effective diffusivities of oxygen and phenol using trypan blue, a vital stain as the tracer. The effective diffusivities of oxygen and phenol were found to be 2.72×10−6 cm2/s and 1.12×10−6 cm2/s respectively.

Electronic Resource

1089-7550

AIP Digital Archive

Physics

Single crystals of mixed methyl-(2,4-dinitrophenyl)-aminopropanoate (MAP): 2-methyl-4-nitroaniline (MNA) have been grown from solution using a 40:60 mixture of ethanol and ethyl acetate. Formation of an equimolar complex is confirmed by x-ray diffraction studies. The complex crystallizes in the monoclinic space group P21. The lattice parameters are a=6.9196(±0.005) A(ring); b=7.673(±0.008) A(ring); c=18.554(±0.001) A(ring); and β=92.547(±0.006)0. b axis is the unique twofold axis and there are two molecules per unit cell. The molecules stack along the b axis with MAP atop MNA atop MAP. Details of the molecular orientation are given. The Raman spectra also indicate that the parent molecules are not disturbed in the process of crystallization. The second harmonic generation efficiency of the new material for 1064 nm laser radiation is observed to be the same as that of MAP but lower than that of MNA. The latter is attributed to the absorption at 532 nm in the mixed crystal. The melting point determined by differential scanning calorimetry is 104.30 °C.

Electronic Resource

1089-7623

AIP Digital Archive

Physics

Electrical Engineering, Measurement and Control Technology

A simple but versatile reciprocating rotation mechanism is described which can be used to rotate crucible and/or crystal in a crystal growing system. It employs commercially available timer relays allowing accurate periods of motion and delay in the rotation.

Electronic Resource

1365-2044

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Changes in visual evoked potentials, visual acuity, blood ammonia levels and serum electrolytes (Na+ and K+) after transurethral resection of the prostate using glycine as an irrigating fluid performed under subarachnoid block were studied in 12 patients, in the pre-operative and immediate postoperative periods. Visual evoked potentials (p100 latency), recorded by shift of a checkerboard pattern, increased significantly from a pre-operative value of mean (SEM) 101.18 (1.63) msec in the right eye, and 102.5 (1.47) msec in the left eye to 108.91 (1.8) msec (p 〈 0.01) and 108.08 (2.53) msec (p 〈 0.01) respectively in the postoperative phase. There were no changes in visual acuity as assessed by a Snellen's chart, blood ammonia levels and serum electrolyte concentrations. The amount of glycine used intra-operatively for irrigation ranged from 3 to 31 litres.

Electronic Resource

1432-1904

Springer Online Journal Archives 1860-2000

Biology

Chemistry and Pharmacology

Natural Sciences in General

Electronic Resource

1573-4803

Springer Online Journal Archives 1860-2000

Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics

Abstract When a 1∶1 weight mixture of (2,-4-dinitrophenyl)-L-alanine (DPA) and 2-methyl-4-nitroaniline (MNA) is dissolved in a 50∶50 volume mixture of ethyl acetate and hexane, two types of crystals were observed on slow evaporation. In the first stage of crystallization, light-yellow plates of MNA measuring up to 25 mm×5 mm×1 mm were formed, which belong to the triclinic space group P1 with lattice parameters a=0.7621 (3) nm, b=0.795 2(5) nm, c=0.8200 (2) nm, α=111.84(2)°, β= 93.76(2)°, γ=116.84(3)°, Z=2. The volume of the unit cell containing two molecules is 361.9(1)×10−3 nm3. The powder SHG efficiency of the triclinic polymorph (MNA(T)) is about the same as that of the monoclinic MNA(M). The Raman spectrum of the new crystal is similar to that of MNA(M) crystallized from the vapour phase or solution, except for the change in the intensity of a few bands. The DSC data show minor differences in the melting points and specific heats for the two phases. The second stage of crystallization resulted in the formation of orange-yellow coloured crystals of the DPA:MNA complex, in the monoclinic space group P21 with lattice parameters a =0.6876(1) nm, b=0.7621(3) nm, c=1.7626(4) nm, β=96.62(2)°, V=917.5 ×10−3 nm3, Z=2 for C16H17N5O8. The Raman spectrum of DPA:MNA consists of bands from both DPA and MNA. The complex melts at 138(1)°C with a specific heat of 25.3(4) cal g−1 according to the DSC measurements. The powder SHG efficiency is nearly the same as that of methyl-(2,4-dinitriphenyl)-aminoproanoate (MAP).

Electronic Resource

1588-2780

Springer Online Journal Archives 1860-2000

Chemistry and Pharmacology

Energy, Environment Protection, Nuclear Power Engineering

Abstract India's isotope programme is today largely self-sustaining both in terms of availability of isotope products and the range of their applications in medicine, industry, hydrology, agriculture and research. Nuclear medicine is practised by over 200 medical institutions whereas 300 organisations offer radioimmunoassay service. Tracer technology, nucleonic gauging and isotope raiography are fairly well accepted by the Indian industry for troubleshooting, NDT and process control. There are three large radiation plants for sterilisation of medical products. Radiation chemical processing with both gamma and EB shows good promise. In agriculture, sixteen mutants of various crops have been produced using gamma-radiation and distributed for commerical cultivation. A strong programme of research on radiation preservation of food has finally resulted in the clearance of some irradiated foods by the Government of India.

Electronic Resource