Search Results - (Author, Cooperation:V. Gupta)

2018-03-09

Wiley-Blackwell

0008-543X

1097-0142

Biology

Medicine

2018-01-31

Wiley-Blackwell

0043-1397

1944-7973

Architecture, Civil Engineering, Surveying

Geography

2012-04-28

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Animals ; Cell Lineage ; Clone Cells/cytology ; Heart/anatomy & histology/*embryology/*growth & development ; Heart Injuries/pathology ; Heart Ventricles/anatomy & histology/cytology/embryology/growth & development ; Morphogenesis ; Myocardium/cytology ; Myocytes, Cardiac/*cytology ; Regeneration ; Staining and Labeling ; Zebrafish/anatomy & histology/*embryology/*growth & development

2014-02-14

Nature Publishing Group (NPG)

0028-0836

1476-4687

Biology

Chemistry and Pharmacology

Medicine

Natural Sciences in General

Physics

Animals ; Cell Differentiation ; Cell Division ; Cell Lineage ; Clone Cells/cytology/metabolism/pathology ; DNA (Cytosine-5-)-Methyltransferase/genetics/metabolism ; Drug Resistance, Neoplasm/drug effects ; Female ; Hematopoiesis ; Hematopoietic Stem Cells/*cytology/drug effects/metabolism/pathology ; Heterografts ; Humans ; Isocitrate Dehydrogenase/genetics ; Leukemia, Myeloid, Acute/diagnosis/drug therapy/genetics/*pathology ; Mice ; Mice, Inbred NOD ; Mice, SCID ; Mutation/genetics ; Neoplasm Transplantation ; Neoplastic Stem Cells/*cytology/drug effects/metabolism/pathology ; Nuclear Proteins/genetics ; Remission Induction ; T-Lymphocytes/metabolism/pathology

0020-7608

Computational Chemistry and Molecular Modeling ; Atomic, Molecular and Optical Physics

Wiley InterScience Backfile Collection 1832-2000

Chemistry and Pharmacology

Molecular polarizabilities of glycine, L-alanine, L-proline, and polygylcine I and II have been calculated by the Lippincott delta function potential model, the atomic polarization method, and the atom-dipole interaction model. In the atom-dipole interaction model the molecular polarizabilities are dependent on atomic (or group) polarizabilities and positional coordinates of the atoms (or groups) constituting the molecule and are conformation dependent. Those obtained from the other two methods are conformation independent and dependent on bond properties only. The results are compared with those obtained from the Kerr effect and molar refraction data.

2 Tab.

Electronic Resource

0887-6266

conformation ; phonon dispersion ; α-helix ; normal modes ; poly(L-leucine) ; density of states ; heat capacity ; Physics ; Polymer and Materials Science

Wiley InterScience Backfile Collection 1832-2000

Chemistry and Pharmacology

Physics

Poly(L-methionine) (PMet) is one of the two sulfur containing polyamino acids. Raman, FTIR spectra, and heat capacity measurements of PMet have been well interpreted through the normal mode analysis and the density of states derived therefrom. Earlier interpretation of heat capacity data is limited because it is based on the Tarasov model, wherein the concept of group frequency and skeletal similarity are used. A special feature of some dispersion curves is their tendency to bunch in the neighborhood of the helix angle. This has been attributed to the presence of strong intramolecular interactions. Repulsion between the dispersion curves is also observed. © 1997 John Wiley & Sons, Inc. J Polym Sci B: Polym Phys 35: 2281-2292, 1997

6 Ill.

Electronic Resource

article

2015

Intelligenz (Psychologie) ; Gesundheitswesen ; Regression ; Koeffizient ; Messverfahren ; Gleichheit ; Ausgaben ; Kapital ; Verkaufen ; Leistung ; Modell ; Indien

International journal of learning and intellectual capital, Bd. 12 (2015) H. 1, S. 47-60, 1479-4853

1479-4861

English

2018-11-16

American Society of Hematology (ASH)

0006-4971

1528-0020

Biology

Medicine

Myeloid Neoplasia, Lymphoid Neoplasia

1089-7550

AIP Digital Archive

Physics

Part I of this paper presents the modified laser spallation technique for measuring the tensile strength of planar interfaces, using a Doppler displacement interferometer. In this technique, a laser-produced compressive stress pulse in the substrate, reflecting from the coating's free surface pulls the interface in tension and leads to its failure if the tensile amplitude is high enough. The current technique is an improvement over the previous one, since the interface stress is determined directly by recording the coating or substrate free-surface velocities using a laser displacement interferometer. The recorded surface velocity is related to the interface stress via an elastic wave equation simulation. The process of coating spallation is investigated, and the effect of the stress pulse profile and the coating and substrate characteristics on the interface tensile stress is studied using the simulation. Several interface stress charts are given for wider applicability of the modified technique.

Electronic Resource

1089-7623

AIP Digital Archive

Physics

Electrical Engineering, Measurement and Control Technology

An interferometer is presented which is capable of measuring the free-surface velocities and displacements of both specular and diffuse surfaces. The setup utilizes a previously used principle of producing a virtual image of one mirror at the same distance from the photodiode as the second mirror of the interferometer, albeit with considerable simplification. It is shown that use of a He–Ne laser of only 5-mW power can produce high contrast displacement fringes from surfaces of materials with nonuniform microstructure, including composites. Substrates of carbon–carbon composites and polycrystalline alumina with nonuniform microstructure on the scale of 5–10 μm, and with peak velocities up to 150 m/s were considered. An experimental strategy which allows one to covert the optical setup to either a velocity or a displacement interferometer is also discussed. It is further shown that use of a fast photodiode and a high-speed digitizer with a 5-ps rise time provides a time resolution of 0.2 ns for recording the displacement fringes, and allows measuring free surface velocities up to 800 m/s. This is demonstrated by measuring such transient surface velocities with rise times of 1 ns on a specular Si surface. In all the experiments reported here, the surface velocities were produced by the reflection of a stress wave, which in turn was generated on the back surface of the substrate, using a Nd:YAG laser pulse.

Electronic Resource

1365-2478

Blackwell Publishing Journal Backfiles 1879-2005

Geosciences

Physics

Gupta, V. K., and Ramani, N., 1978, A Note on Convolution and Padding for Two-Dimensional Data, Geophysical Prospecting 26, 214–217.Filtering of gridded data by means of two-dimensional generalized convolution results in a loss of data along the edges of the map. This loss can be counteracted by ‘padding’– filling the surrounding of the input map with some kind of data. Padding by algebraic extrapolation is assumed to be better than surrounding the maps with zeroes. A Føsrtran IV routine for padding by algebraic extrapolation is available from the authors.

Electronic Resource

1468-2494

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

In vitro studies on the interaction of phospholipids with p-phenylene diamine, a major component of hair dyes, were undertaken. Thin layer and molecular sieving chromatography along with phosphorus estimation and spectral characterization suggested the possibility of p-phenylene diamine and its biotransformation products combining with lipophilic biomolecules.

Electronic Resource

1468-2494

Blackwell Publishing Journal Backfiles 1879-2005

Medicine

Single dermal application of p-phenylene diamine in guinea-pigs caused pathomorphological lesions over a period of 24 h which later disappeared. Lipid peroxidation activity of skin homogenate showed significant inhibition, whereas superoxide dismutase was unaffected. Histamine content increased initially but showed drastic reduction during recovery. The significance of the data in the potential dermal toxicity of hair dyes is discussed.

Electronic Resource

1089-7623

AIP Digital Archive

Physics

Electrical Engineering, Measurement and Control Technology

A system, based on the principle of magnetic induction coupling, to track a particle nonintrusively in three dimensions is presented. It consists of small transmitters mounted inside the particle being tracked, and a set of receiving antennae surrounding the experimental apparatus. In Part I of the sequence of two papers, the focus is on the theoretical aspects, in particular, on developing a computational technique to solve the inverse problem of finding the three-dimensional position as well as orientation of the particle from the voltages induced in the antennae. In Part II the focus is on the actual system development, including all hardware and data acquisition aspects. The results presented here are comprehensive, as they include details of hardware/electronics, comparison of induced voltage model and actual measurements, and a set of actual tracking results. Through test experiments that include a variety of real-time trajectories, this system is tested and its success is demonstrated. Results of real trajectories of a single ball rising in a mass of other spheres in a vibrated bed are also shown. Although this system is intended for use in experimental studies of dry granular flows, it has wide applicability due to its nonintrusive nature, and is particularly useful when optical tracking techniques are not feasible. © 1998 American Institute of Physics.

Electronic Resource

1467-9310

Blackwell Publishing Journal Backfiles 1879-2005

Economics

Electronic Resource

1477-9730

Blackwell Publishing Journal Backfiles 1879-2005

Architecture, Civil Engineering, Surveying

Treaty verification involves the acquisition and interpretation of data to establish a country's compliance to an agreement. Remote sensing and photogrammetry in verification is established in the intelligence community and is progressively entering the civilian sector as well. The Open Skies Treaty and the proliferation of commercial satellite imagery have created a niche for open, multilateral verification. These recent developments come at an opportune moment as the verification task has become more cumbersome and complex.This paper surveys the changes in the field of verification, aerial monitoring and satellite surveillance. It details existing and future verification tasks and presents the operational capabilities for fulfilling those tasks. The limiting factors are also presented.

Electronic Resource

1439-0523

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

The objective of this study was to broaden the genetic base in oleiferous Brassica juncea by resynthesis, using 10 diverse parental lines of oleiferous B. rapa and two lines of B. nigra of both Indian and exotic origin. Out of 14 crosses attempted using B. rapa as the female parent, eight were successful. Embryo rescue was necessary to obtain interspecific plants. A total of 29 fertile interspecific plants were obtained after colchicine treatment. In the S2 generation, the expression of component characters in the majority of the resynthesized plants showed a negative trend. The resynthesized B. juncea lines are being maintained through repeated selfing and selection at each generation for desirable plant types. This process will continue till the progeny lines of the desirable plants achieve uniformity.

Electronic Resource

1439-0523

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

The economic value of wheat grain is determined by the kernel morphology which is an important parameter for manufacturing different food products requiring specific grain characteristics. Although kernel size and shape have emerged as important breeding objectives, not much information is available about the number or location of associated gene(s)/quantitative trait loci. In the present study, a recombinant inbred line population of 106 plants (F7) was phenotyped for four traits, namely kernel length, width, weight and factor form density (FFD) and genotyped with different polymerase chain reaction-based markers. Transgressive segregants were observed for all the traits and genetic correlation studies showed positive correlations between the majority of the traits. The number of markers associated with each trait ranged from two to nine and the phenotypic contribution by an individual marker ranged from 3.3 to 16.6%. Many of the markers showed linkage to more than one trait. Strategies for improving the wheat grain quality traits and the utility of such markers in marker-assisted selection (MAS) efforts are discussed.

Electronic Resource

1439-0523

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

‘Polima’ cytoplasmic male sterility (CMS) was transferred from ‘Polima’ Brassica napus ‘ISN 706’to five different cultivars of Brassica campestris (‘Pusa kalyani’, ‘Pant toria’, ‘Candle’, ‘Tobin’ and ‘ATC 94211′) by repeated backcrossing. It was observed that, while ‘Polima’ CMS manifested complete and stable male sterility in the nuclear backgrounds of ‘Pusa kalyani’, ‘Pant toria’, and ‘Tobin’, the cultivars ‘Candle’ and ‘ATC 94211’possessed the restorer gene for this CMS in the heterozygous condition. An analysis of F1 and F2 generations of ‘Polima’‘Pusa kalyani’בCandle’ and ‘Polima’‘Pusa kalyani’בATC 94211’ revealed that restoration is controlled by a single dominant gene. Identification of stable maintainers and restorers of ‘Polima’ CMS could facilitate the development of hybrid varieties in B. campestris.

Electronic Resource

1439-0523

Blackwell Publishing Journal Backfiles 1879-2005

Agriculture, Forestry, Horticulture, Fishery, Domestic Science, Nutrition

Reactions to eight isolates of Karnal bunt, Neovossia indica, collected from seven different locations in northern India were studied on 13 host lines, including cultivars and breeding lines of Triticum aestivum, Triticum durum and Triticosecale in all possible combinations. The incidence of Karnal bunt varied from zero in PBW 34 and PBW 248 with isolates Ni8 and Ni2, respectively, to as high as 66.8% in a highly susceptible cultivar WL 711 with isolate Ni5. The differences in disease incidence among cultivars and isolates were highly significant. All the isolates could be distinguished on the basis of differential reactions on one or more of the host lines. Even the most resistant lines of durum (PDW 215), triticale (TL 1210) and wheat (HD 29) could be distinguished by the differential disease reaction with one or more of the eight isolates. The cultivar-isolate interaction for disease score was highly significant, indicating the probable existence of a gene-for-gene relationship in this host-pathogen system.

Electronic Resource