Polyfluorene as a model system for space-charge-limited conduction (2007)
Arif, M., Yun, M., Gangopadhyay, S., Ghosh, K., Fadiga, L., Galbrecht, F., ...
Ethyl-hexyl substituted polyfluorene (PF) with its high level of molecular disorder can be described very well by one-carrier space-charge-limited conduction for a discrete set of trap levels with...
Localization and Interaction Effects in Strongly Underdoped La2-xSrxCuO4 (2004)
Cieplak, Marta Z., Malinowski, A., Guha, S., Berkowski, M.
The in-plane magnetoresistance (MR) in La2-xSrxCuO4 films with 0.03 < x < 0.05 has been studied in the temperature range 1.6 K to 100 K, and in magnetic fields up to 14 T, parallel and perpendicular...
Temperature dependent optical studies of Ti$_{1-x}$Co$_x$O$_2$ (2003)
Guha, S., Ghosh, K., Keeth, J. G., Ogale, S. B., Shinde, S. R., Simpson, J. R., ...
We present the results of Raman and photoluminescence (PL) studies on epitaxial anatase phase Ti$_{1-x}$Co$_x$O$_2$ films for $x$ = 0-0.07, grown by pulsed laser deposition. The low doped system...
Hydrostatic pressure dependence of the luminescence and Raman frequencies in polyfluorene (2003)
Martin, C. M., Guha, S., Chandrasekhar, M., Chandrasekhar, H. R., Guentner, R., De Freitas, P. Scanduicci, ...
We present studies of the photoluminescence (PL), absorption and Raman scattering from poly[2,7-(9,9'-bis(2-ethylhexyl))fluorene] under hydrostatic pressures of 0-100 kbar at room temperature. The...
Guha, S., Rice, J. D., Yau, Y. T., Martin, C. M., Chandrasekhar, M., Chandrasekhar, H. R., ...
We present photoluminescence studies as a function of temperature from a series of conjugated polymers and a conjugated molecule with distinctly different backbone conformations. The organic...
People living with HIV infection / AIDS - A study on lymph node FNAC and CD4 count (2002)
Shobhana, A, Guha, S, Mitra, K, Dasgupta, A, Neogi, D, Hazra, S
Suthar, R. L, Guha, S, Bandopadhyay, K, Mishra, V. K, Koul, R, Bhat, C. L
A low-threshold energy, high-sensitivity gamma-ray telescope, MACE (for Major Atmospheric Cerenkov Experiment) is proposed to be built in India for explorations of gamma-ray sky in 100's keV - 10's...
Magnetotransport in the Normal State of La1.85Sr0.15Cu(1-y)Zn(y)O4 Films (2001)
Malinowski, A., Cieplak, Marta Z., Guha, S., Wu, Q., Kim, B., Krickser, A., ...
We have studied the magnetotransport properties in the normal state for a series of La1.85Sr0.15Cu(1-y)Zn(y)O4 films with values of y, between 0 and 0.12. A variable degree of compressive or tensile...
Impurity and strain effects on the magnetotransport of La1.85Sr0.15Cu(1-y)Zn(y)O4 films (2001)
Cieplak, Marta Z., Malinowski, A., Karpinska, K., Guha, S., Krickser, A., Wu, B. Kim Q., ...
The influence of zinc doping and strain related effects on the normal state transport properties(the resistivity, the Hall angle and the orbital magneto- resistance(OMR) is studied in a series of...
Bohmian trajectories for photons (2001)
Ghose, P., Majumdar, A. S., Guha, S., Sau, J.
The first examples of Bohmian trajectories for photons have been worked out for simple situations, using the Kemmer-Duffin-Harishchandra formalism.
Geometry-Dependent Electronic Properties of Highly Fluorescent Conjugated Molecules (2000)
Yang, S. C., Graupner, W., Guha, S., Puschnig, P., Martin, C., Chandrasekhar, H. R., ...
Metallic nonsuperconducting phase and d-wave superconductivity in Zn-substituted LaSrCuO (1999)
Karpinska, K., Cieplak, Marta Z., Guha, S., Malinowski, A., Skoskiewicz, T., Plesiewicz, W., ...
Measurements of the resistivity, magnetoresistance and penetration depth were made on films of LaSrCuO with up to 12 at.% of Zn substituted for the Cu. The results show that the quadratic temperature...
Raman spectroscopy of InN films grown on Si (1999)
Agullo-Rueda, F., Mendez, E. E., Bojarczuk, N., Guha, S.
We have used Raman spectroscopy to study indium nitride thin films grown by molecular beam epitaxy on (111) silicon substrates at temperatures between 450 and 550 C. The Raman spectra show well...
Malinowski, A., Krickser, A., Cieplak, Marta Z., Guha, S., Karpinska, K., Berkowski, M., ...
The effect of zinc doping on the anomalous temperature dependence of the magnetoresistance and the Hall effect in the normal state was studied in a series of La{1.85}Sr{0.15}Cu{1-y}Zn{y}O{4} films,...
Low-Frequency Raman Scattering from Vitreous and Molten B2O3. (1998)
Walrafen,G. E., Hokmabadi,M. S., Krishnan,P. N., Guha,S., Munro,R. G.
Integrated Raman intensities of bands between 0-900 per cm have been obtained for molten B203 from 288-906 C. Emphasis was placed on the highly depolarized low-frequency contour (adjoining the...
Guha, S., Munroe, P. R., Baker, I.
The microstructure of the multiphase alloy Ni-20Al-30Fe (atomic per cent), processed through a casting and hot-extrusion route, consisted of a pro-eutectic beta prime (ordered b.c.c or B2-structured)...
The Yield Strength of Off-Stoichiometric Ni3Al With and Without Boron. (1998)
Schulson, E. M., Xu, Y., Munroe, P. R., Guha, S., Baker, I.
Compression tests have established that the addition of 0.3 at% boron does not significantly affect the contribution of the grain boundaries to the yield strength of Al-rich (26 at% Al) Ni3Al; in...
The Effect of Annealing on Ni-Al-Fe B2 Compounds. (1998)
Guha, S., Baker, I., Munroe, P. R., Michael, J. R.
Rods of both Ni-30-Al-20Fe were examined by optical microscopy and transmission electron microscopy in both the as-(double) extruded condition and after various heat treatments. Hardness, tensile and...
Processing and Properties of Tungsten Heavy Alloys With Ni48Al12Fe40 Intermetallic Matrix. (1998)
Guha, S., Kyriacou, C., Withers, J. C., Loutfy, R. O.
This paper concerned mmc in some important way and contained information about, utilized, or discussed these subjects: basic topics:, composite materials, experimental materials and material types:,...
A LOW COST PROCESSING TECHNIQUE TO PRODUCE TUNGSTEN WHISKERS. (1998)
Guha, S., Kyriacou, C., Withers, J. C.
Proceedings of the 2nd International Conference on Tungsten and Refractory Metals; Held Oct 1994, McLean, Virginia; Edited by Animesh Bose and Robert J. Dowding; Metal Powder Industries Federation :...
Magnetic-Field Induced Localization in the Normal State of Superconducting La_2-xSr_xCuo_4 (1997)
Malinowski, A., Cieplak, Marta Z., Van Steenbergen, A. S., Karpinska, K., Berkowski, M., ...
Magnetoresistance measurements of highly underdoped superconducting La_{2-x}Sr_xCuO_4 films with $x = 0.051$ and $x = 0.048$, performed in dc magnetic fields up to 20 T and at temperatures down to 40...
Orbital Magnetoresistance in the LaSrCuO System (1997)
Balakirev, F. F., Trofimov, I. E., Guha, S., Cieplak, Marta Z., Lindenfeld, P.
Measurements of resistivity, Hall effect, and magnetoresistance have been made on seven c-axis oriented thin-film specimens of La(2-x)Sr(x)CuO(4) with values of x from 0.048 to 0.275, and one...
Magnetic-field-induced localization in the normal state of superconducting La2-xSrxCuO4 (1997)
Lindenfeld, P., Guha, S., Berkowski, M., Karpinska, K., VanSteenbergen, A.S., ...
Gastric emptying in "early" non-insulin dependent diabetes mellitus (1996)
Jones, K L., Horowitz, M., Carney, B I., Wishart, J M., Guha, S., Green, L.
Gastric emptying in "early" non-insulin dependent diabetes mellitus (1996)
Jones, K L., Horowitz, M., Carney, B I., Wishart, J M., Guha, S., Green, L.
Optical study of a ZnSe/Zn0.73Mn0.27Se heterostructure (1993)
Lebihen, T., Deleporte, E., Voos, M., Guha, S., Munekata, H.
Photoluminescence, excitation spectroscopy and magneto-photoluminescence experiments are performed up to 5.5T at low temperature (1.7K) in a ZnSe/Zn0.73Mn0.27Se double quantum well. The experimental...
Optical study of a ZnSe/Zn0.73Mn0.27Se heterostructure (1993)
Lebihen, T., Deleporte, E., Voos, M., Guha, S., Munekata, H.
Photoluminescence, excitation spectroscopy and magneto-photoluminescence experiments are performed up to 5.5T at low temperature (1.7K) in a ZnSe/Zn0.73Mn0.27Se double quantum well. The experimental...
Optical study of a ZnSe/Zn0.73Mn0.27Se heterostructure (1993)
Lebihen, T., Deleporte, E., Voos, M., Guha, S., Munekata, H.
Photoluminescence, excitation spectroscopy and magneto-photoluminescence experiments are performed up to 5.5T at low temperature (1.7K) in a ZnSe/Zn0.73Mn0.27Se double quantum well. The experimental...
Gopal, Ravi B, Vani, VC, Guha, S, Gopal, ESR
The binary liquid system acetonitrile + cyclohexane has closely matched densities, equal to within 0.2% at 20 °C, a density inversion in the system at ; $\simeq\hspace{2mm} 32^oC$ and a critical...
Ravi Gopal, B., Vani, Vc., Guha, S., Gopal, E.
The binary liquid system acetonitrile + cyclohexane has closely matched densities, equal to within 0.2% at 20 °C, a density inversion in the system at ;≃ 32 °C and a critical solution...
Ravi Gopal, B., Vani, Vc., Guha, S., Gopal, E.
The binary liquid system acetonitrile + cyclohexane has closely matched densities, equal to within 0.2% at 20 °C, a density inversion in the system at ;≃ 32 °C and a critical solution...
Ravi Gopal, B., Vani, Vc., Guha, S., Gopal, E.
The binary liquid system acetonitrile + cyclohexane has closely matched densities, equal to within 0.2% at 20 °C, a density inversion in the system at ;≃ 32 °C and a critical solution...
Gopal, Ravi B, Vani, VC, Guha, S, Gopal, ESR
The binary liquid system acetonitrile + cyclohexane has closely matched densities, equal to within 0.2% at 20 °C, a density inversion in the system at ; $\simeq\hspace{2mm} 32^oC$ and a critical...
Simple low-cost multiprocessor based on message passing FIFO links (1990)
Ghoshal, SK, Guha, S, Ariff, SM, Rajaraman, V
This paper describes the hardware, software and application programming of a small multiprocessor, designed and built, which consists of eight IBM PC/XT motherboards connected together using...
Simple low-cost multiprocessor based on message passing FIFO links (1990)
Ghoshal, SK, Guha, S, Ariff, SM, Rajaraman, V
This paper describes the hardware, software and application programming of a small multiprocessor, designed and built, which consists of eight IBM PC/XT motherboards connected together using...
Reentrant Phase Transition in a Ternary Mixture: A Study of the Shape of its Critical Line (1987)
A detailed determination of upper and lower critical solution temperatures ($T_s$) for the mixture 3-methylpyridine, water and heavy water is presented. The curvature of the line that connects these...
Guha, S, Vani, VC, Jayalaxmi, Y, Kumar, A, Gopal, Ravi B, Gopal, ESR
The determination of the capillary parameter for the partially miscible binay liquid system acetonitrile + cyclohexane has been reported. The system has closely matched densities and the data points...
Jayalaxmi, Y, Guha, S, Vani, VC, Gopal, ESR
The elec. capacitance (Cc) of the binary liq. mixt. n-heptane + methanol at its crit. compn. is studied in both 1-phase and 2-phase regions. The 2-phase capacitance data are used with the known...
Guha, S, Vani, VC, Jayalaxmi, Y, Kumar, A, Gopal, Ravi B, Gopal, ESR
The determination of the capillary parameter for the partially miscible binay liquid system acetonitrile + cyclohexane has been reported. The system has closely matched densities and the data points...
Jayalaxmi, Y, Guha, S, Vani, VC, Gopal, ESR
The elec. capacitance (Cc) of the binary liq. mixt. n-heptane + methanol at its crit. compn. is studied in both 1-phase and 2-phase regions. The 2-phase capacitance data are used with the known...
Reentrant Phase Transition in a Ternary Mixture: A Study of the Shape of its Critical Line (1987)
A detailed determination of upper and lower critical solution temperatures ($T_s$) for the mixture 3-methylpyridine, water and heavy water is presented. The curvature of the line that connects these...
Critical wetting phenomena : observation of hydrodynamic instabilities (1985)
Chatterjee, S, Vani, V, Guha, S, Gopal, ESR
In critical wetting phenomena, the situation of a heavier liquid residing on top of lighter liquid is observed. The consequences of the Rayleigh-Taylor mode of instability in the semicritical wetting...
Critical wetting phenomena : observation of hydrodynamic instabilities (1985)
Chatterjee, S., Vani, V., Guha, S., Gopal, E.S.R.
In critical wetting phenomena, the situation of a heavier liquid residing on top of lighter liquid is observed. The consequences of the Rayleigh-Taylor mode of instability in the semicritical wetting...
Critical wetting phenomena : observation of hydrodynamic instabilities (1985)
Chatterjee, S., Vani, V., Guha, S., Gopal, E.S.R.
In critical wetting phenomena, the situation of a heavier liquid residing on top of lighter liquid is observed. The consequences of the Rayleigh-Taylor mode of instability in the semicritical wetting...
Critical wetting phenomena : observation of hydrodynamic instabilities (1985)
Chatterjee, S., Vani, V., Guha, S., Gopal, E.S.R.
In critical wetting phenomena, the situation of a heavier liquid residing on top of lighter liquid is observed. The consequences of the Rayleigh-Taylor mode of instability in the semicritical wetting...
Critical wetting phenomena : observation of hydrodynamic instabilities (1985)
Chatterjee, S, Vani, V, Guha, S, Gopal, ESR
In critical wetting phenomena, the situation of a heavier liquid residing on top of lighter liquid is observed. The consequences of the Rayleigh-Taylor mode of instability in the semicritical wetting...
Vani, V, Guha, S, Gopal, ESR, Rao, Madhusudana S
The coexistence curve of cyclohexane + acetonitrile, a binary liquid mixture with a very low gravity-affected region, is studied. The order parameter exponent $\beta$ is nearly 0.325 and the diameter...
Vani, V, Guha, S, Gopal, ESR, Rao, Madhusudana S
The coexistence curve of cyclohexane + acetonitrile, a binary liquid mixture with a very low gravity-affected region, is studied. The order parameter exponent $\beta$ is nearly 0.325 and the diameter...
ELECTRON IRRADIATION IN AMORPHOUS HYDROGENATED SILICON (1981)
Navkhandewala, R., Narasimhan, K., Guha, S.
The dark conductivity of amorphous hydrogenated silicon is found to increase immediately after electron irradiation. The conductivity decreases as a function of time and settles at a value lower than...
ELECTRON IRRADIATION IN AMORPHOUS HYDROGENATED SILICON (1981)
Navkhandewala, R., Narasimhan, K., Guha, S.
The dark conductivity of amorphous hydrogenated silicon is found to increase immediately after electron irradiation. The conductivity decreases as a function of time and settles at a value lower than...
ELECTRON IRRADIATION IN AMORPHOUS HYDROGENATED SILICON (1981)
Navkhandewala, R., Narasimhan, K., Guha, S.
The dark conductivity of amorphous hydrogenated silicon is found to increase immediately after electron irradiation. The conductivity decreases as a function of time and settles at a value lower than...
Determination of DNA sequences containing methylcytosine in Bacillus subtilis Marburg.
The methylcytosine-containing sequences in the DNA of Bacillus subtilis 168 Marburg (restriction-modification type BsuM) were determined by three different methods: (i) examination of in...
Zhang, S, Guha, S, Volkert, F C
The phosphoprotein phosphatase 1 (PP1) catalytic subunit encoded by the Saccharomyces GLC7 gene is involved in control of glycogen metabolism, meiosis, translation, chromosome segregation, cell...
Specific alteration of the 30S ribosomal subunits of Bacillus subtilis during sporulation.
Active 30S ribosomal subunits were isolated from vegetative and sporulating cells of Bacillus subtilis. Both subunits were able to function in polyuridylic acid of phage phie messenger ribonucleic...
Isolation of 30S and 50S active ribosomal subunits of Bacillus subtilis, Marburg strain.
Active 30S and 50S ribosomal subunits were isolated from Bacillus subtilis. These subunits were able to perform not only protein synthesis in the presence of artificial or natural messenger...