Search Results - (Author, Cooperation:S. Balakrishnan)

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  1. 1
    S Balakrishnan and B Rajeswari
    Institute of Physics (IOP)
    Published 2018
    Staff View
    Publication Date:
    2018-09-21
    Publisher:
    Institute of Physics (IOP)
    Print ISSN:
    1757-8981
    Electronic ISSN:
    1757-899X
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  2. 2
    Staff View
    Publication Date:
    2015-09-30
    Publisher:
    Nature Publishing Group (NPG)
    Print ISSN:
    0028-0836
    Electronic ISSN:
    1476-4687
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Keywords:
    Animals ; Breast Neoplasms/drug therapy/genetics/*pathology ; Cell Cycle/drug effects ; Cell Differentiation/drug effects/genetics ; Cell Line, Tumor ; Cell Proliferation/drug effects ; Cell Separation ; Cell Transformation, Neoplastic/drug effects/pathology ; Cyclin-Dependent Kinases/antagonists & inhibitors ; Disease Models, Animal ; *Disease Progression ; Epithelial Cells/drug effects/pathology ; Epithelial-Mesenchymal Transition/genetics ; Flow Cytometry ; Gene Expression Profiling ; Genes, myc/genetics ; Humans ; Mesoderm/metabolism/pathology ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Neoplasm Metastasis/drug therapy/*pathology ; Neoplastic Stem Cells/drug effects/metabolism/*pathology ; *Single-Cell Analysis ; Xenograft Model Antitumor Assays
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  3. 3
  4. 4
    Staff View
    Publication Date:
    2018-10-24
    Publisher:
    Institute of Physics (IOP)
    Print ISSN:
    1757-8981
    Electronic ISSN:
    1757-899X
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  5. 5
    Staff View
    Publication Date:
    2018-10-24
    Publisher:
    Institute of Physics (IOP)
    Print ISSN:
    1757-8981
    Electronic ISSN:
    1757-899X
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Published by:
    Latest Papers from Table of Contents or Articles in Press
  6. 6
    Balakrishnan, S. ; Goodwin, H. ; Cumings, J. N.

    Oxford, UK : Blackwell Publishing Ltd
    Published 1961
    Staff View
    ISSN:
    1471-4159
    Source:
    Blackwell Publishing Journal Backfiles 1879-2005
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  7. 7
    BALIGA, B. R. ; BALAKRISHNAN, S. ; RAJAGOPALAN, R.

    [s.l.] : Nature Publishing Group
    Published 1954
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] Cold defatted and autoclaved (at 15 Ib. pressure for 30 min.) soy bean meal, at 10 per cent protein-level in the diet, was used for the determination of biological value by the method of Mitchell5. There were three comparable groups of albino rats, containing six rats in each group and each rat ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  8. 8
    Luan Eng Lie-Injo ; Ng, T. ; Balakrishnan, S.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0009-8981
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Medicine
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  9. 9
    Balakrishnan, S. ; Koza, M.P.

    Amsterdam : Elsevier
    Staff View
    ISSN:
    0167-2681
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Economics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  10. 10
    Staff View
    ISSN:
    0167-9317
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Electrical Engineering, Measurement and Control Technology
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  11. 11
    Staff View
    ISSN:
    0040-6090
    Source:
    Elsevier Journal Backfiles on ScienceDirect 1907 - 2002
    Topics:
    Physics
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  12. 12
    BALAKRISHNAN, S. ; RAJAGOPALAN, R.

    [s.l.] : Nature Publishing Group
    Published 1953
    Staff View
    ISSN:
    1476-4687
    Source:
    Nature Archives 1869 - 2009
    Topics:
    Biology
    Chemistry and Pharmacology
    Medicine
    Natural Sciences in General
    Physics
    Notes:
    [Auszug] Eighteen albino rats, consisting of equal numbers of males and females and weighing 80-100 gm., were fed a vitamin Bj-free basal diet for one week, after which period the urine and faeces of the individual rats were collected with the usual precautions and thiamine was determined4. The rats were ...
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  13. 13
    Balakrishnan, S. ; Hanson, G. N. ; Rajamani, V.
    Springer
    Published 1991
    Staff View
    ISSN:
    1432-0967
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Geosciences
    Notes:
    Abstract The late Archean, north-south trending Kolar Schist Belt in south India, 4 km wide by 80 km long, is thought to be a suture between two gneiss terranes (Krogstad et al. 1989). Within this volcanics-dominated belt are recognized both tholeiitic and high Mg (komatiitic and picritic) amphibolites, which make up some 70% and 5% respectively of the exposed outcrops. A massive tholeiitic amphibolite separates the belt into western and eastern parts. A Pb-Pb whole-rock age of 2732±155 Ma on samples from a single outcrop of massive tholeiite is a minimum age for this rock. Samples of this rock have ɛNd values at 2700 Ma that range between +3.8 and +6.8, μ1 (initial 238U/204Pb) of 7.5 and K 1 (initial 232Th/238U) of about 4. Two different types of high-Mg amphibolites are recognized from the western part of the belt: a picritic or P-type, and a komatiitic or K-type. The P-type have highly variable Ce/Al ratios all greater than chondritic, Nd/Yb ratios greater than chondritic, ɛNd at 2700 Ma of +1.5 to +8, and Pb isotope compositions variable in 207Pb/204Pb with μ1 of about 8.0 and k 1 of about 4. The trace-element data suggest that the light-REE enrichment is a character of the mantle source and is not due to residual garnet. The K-type amphibolites have near chondritic Ce/Al and Nd/Yb ratios, ɛNd at 2700 Ma of +1.5 to +8, and μ1 of about 8 and k 1 of about 4. Although the P-type is light-REE enriched compared to the K-type, both types have similar Ce/Nd ratios as well as initial Pb and Nd isotopes. If the 2696±136 Ma age for the Sm-Nd isochron which includes both types of high-Mg amphibolite has any significance it dates the time of light-REE enrichment of the mantle source for the P-type komatiitic amphibolites. The high-Mg amphibolites in the eastern part of the belt are light-REE enriched, have Pb isotopic compositions that are variable in 207Pb/204Pb with a μ1 about 8.5 and ɛNd at 2700 Ma of +1.8 to +4.5. Hydrothermal fluids associated with metamorphism and shearing prior to about 2400 Ma ago were responsible for the introduction of gold-quartz-carbonate veins into the Kolar Schist Belt. The Pb isotope composition of galena in these veins suggests that these fluids may have also introduced extraneous Pb from adjacent older granitoid gneisses into the amphibolites, which could be responsible for the variability in the 207Pb/204Pb ratios of the samples. This extraneous Pb probably is not responsible for the distinct Pb isotope character of each type of amphibolite.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  14. 14
    Yan, D. ; Kaye, J. E. ; Balakrishnan, S. ; Popplewell, N.
    Springer
    Published 1996
    Staff View
    ISSN:
    1433-3015
    Keywords:
    CCD array ; Finish turning ; Inverse problem of light scattering ; Laser ; Surface roughness measurement
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract A new approach is proposed for the on-line measurement of the maximum peak-to-valley roughness,R max, of a finished-turned surface in the feed direction. The method is based on solving the inverse problem of light scattering by using a linear least-square estimate of the angular scattered light pattern reflected from a surface. A laser system has been developed to capture the light reflected under different cutting conditions. The effects of the ambient room light as well as the workpiece's rotational speed and methods for thier compensation are also discussed. Good correlation was found between the optical and stylus-measuredR max.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  15. 15
    Balakrishnan, S. ; Neelakantan, N. R.
    Springer
    Published 1999
    Staff View
    ISSN:
    1573-4803
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
    Notes:
    Abstract Physical blends of polycarbonate (PC) and acrylonitrile-butadiene-styrene terpolymer (ABS) at two different weight fractions were made (PC35/ABS65 and P75/ABS25). Reactive blended similar compositions of PC with maleic anhydride grafted ABS (MABS) were also made at the same compositions. The crack resistance behaviour of these two types of blends and feedstocks (PC and ABS) were studied. The generalized locus method was used to investigate the invariance of crack resistance from any set of characteristic points. PC and PC/ABS blends failed immediately after crack initiation. The modified blends (PC/MABS) exhibited failure through crack propagation after crack initiation started. The resistance to crack initiation is determined in terms of critical J-integral value (Jc). The resistance to crack propagation at maximum load point is also determined from the locus of maximum load point on the load-displacement curves. The resistance to steady state crack growth (Rp) during extensive crack propagation is determined from the total essential energy for a complete fracture. The crack resistance values for modified blends are much high compared to unmodified blends and even feedstocks.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  16. 16
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract The need for defining the assay conditions assumes greater significance for the manufacturer of RIA kits. This stems from the consideration that despite high quality of kit reagents in the kits, it is the definition of optimum conditions of assay that makes them effective and also permits to evaluate the limits of the sensitivity and precision. In this connection we have studied in detail a number of parameters mainly to define the stability of the assay system to changes in the protein concentration, the influence of polyethylene glycol in various ionic media, incubation parameters for systematic error analysis in three separation systems based on dextran coated charcoal, plain polyethylene glycol and polyethylene glycol assisted second antibody. Second antibody in a preprecipitated form was found to be readily adaptable as a reagent. Among the three methods of separation studied, the second antibody employed as a complex with primary antibody assisted by polyethylene glycol had superior separation without any specific criticality, characteristics as judged by the variations at various dose levels over an extended period and provided a practical procedure for routine assays.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  17. 17
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract Methods for the preparation and analysis of a new renal radiopharmaceutical,99mTc-thiodiglycolic acid (TDGA), are reported. The kit for Tc-TDGA contains a lypophilized acidic (pH 2.5) mixture of 5 mg TDGA and 0.05 mg SnCl2·2H2O. Acetate buffer has been found to be a suitable solvent for paper chromatography of99mTc-TDGA. The results of the quantitative organ distribution studies in rats and rabbits indicated the characteristics of99mTc-TDGA to be intermediate to the renal tubular agent131I-Hippuran and the GFR agent99mTc-DTPA.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  18. 18
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract A novel method to eliminate T3 from gross sera/plasma based on prior treatment with 8-anilino-1-naphthalene sulphonic acid has been standardized. This method is rapid with a minimum loss of protein and uses only small quantities of charcoal. The treated sera have been tested for acceptance in the RIA system for routine assays.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  19. 19
    Menon, Sh. ; Samuel, G. ; Balakrishnan, S. A.
    Springer
    Published 1997
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract Tracer specificity plays an important role in the radioimmunoassay (RIA) of steroid homones. In this paper, we describe the preparation and purification of125I-labeled cortisol derivative with a carboxymethyloxime-histamine bridge. The investigation on the method of purification showed that HPLC could be adopted for the routine preparation of a pure, homogeneous tracer. The retention time observed in HPLC for125I-histamine-CMO-cortisol conjugate could be used as an index for qualitative and quantitative assessments.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses
  20. 20
    Grace, S. ; Meera, V. ; Balakrishnan, S. A. ; Sarma, H. D.
    Springer
    Published 1997
    Staff View
    ISSN:
    1588-2780
    Source:
    Springer Online Journal Archives 1860-2000
    Topics:
    Chemistry and Pharmacology
    Energy, Environment Protection, Nuclear Power Engineering
    Notes:
    Abstract Three different radiotracers of testosterone incorporating125I at position 3 or 19 were prepared and tested for usability in radioimmunoassays employing the antisera raised at our laboratory. Histamine was radioiodinated and conjugated to suitable testosterone derivatives. On optimization, tracers with high purity, good immunoreactivity and long stability could be obtained for all the three tracers. However, the usability of a tracer will also depend on the antiserum used and this was also demonstrated using different pairs of antisera and tracers.
    Type of Medium:
    Electronic Resource
    URL:
    Articles: DFG German National Licenses