Institution
Banaras Hindu University
Education•Varanasi, Uttar Pradesh, India•
About: Banaras Hindu University is a education organization based out in Varanasi, Uttar Pradesh, India. It is known for research contribution in the topics: Population & Catalysis. The organization has 11858 authors who have published 23917 publications receiving 464677 citations. The organization is also known as: Kashi Hindu Vishvavidyalay & Benares Hindu University.
Topics: Population, Catalysis, Dielectric, Alloy, Raman spectroscopy
Papers published on a yearly basis
Papers
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TL;DR: The enzyme mannitol dehydrogenase plays a key role in host–pathogen interactions and must be co-localized with pathogen-secreted mannitor to resist the infection.
Abstract: Numerous plants and fungi produce mannitol, which may serve as an osmolyte or metabolic store; furthermore, mannitol also acts as a powerful quencher of reactive oxygen species (ROS). Some phytopathogenic fungi use mannitol to stifle ROS-mediated plant resistance. Mannitol is essential in pathogenesis to balance cell reinforcements produced by both plants and animals. Mannitol likewise serves as a source of reducing power, managing coenzymes and controlling cytoplasmic pH by going about as a sink or hotspot for protons. The metabolic pathways for mannitol biosynthesis and catabolism have been characterized in filamentous fungi by direct diminishment of fructose-6-phosphate into mannitol-1-phosphate including a mannitol-1-phosphate phosphatase catalyst. In plants mannitol is integrated from mannose-6-phosphate to mannitol-1-phosphate, which then dephosphorylates to mannitol. The enzyme mannitol dehydrogenase plays a key role in host-pathogen interactions and must be co-localized with pathogen-secreted mannitol to resist the infection.
112 citations
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TL;DR: The data suggest that myopathy, neuropathy and osteomalacia in patients are due to nutritional deficiencies of multiple vitamins.
Abstract: Thirty unselected females with proven osteomalacia were evaluated clinically, electromyographically and histopathologically for muscle dysfunction. Clinical evidence of myopathy was found in all the patients except one; the electromyograms were abnormal in 25 of them, and histopathological abnormalities, although slight and nonspecific, were seen in all the 17 patients who underwent muscle biopsy. Electromyographic findings revealed a myopathic pattern as evidenced by a significant reduction in motor unit potential duration and amplitude, and an increased percentage polyphasicity as compared to the controls. There was a complete absence of denervation potentials. The histopathological abnormalities were nonspecific and slight, and consisted of fatty infiltration, interstitial fibrosis, sarcolemmal nuclear proliferation and variation in muscle fibre thickness. A statistically significant reduction in motor nerve conduction velocities of the ulnar and peroneal nerves was found. It was considered that this reduction in the velocities was due to subclinical neuropathy. Our data suggest that myopathy, neuropathy and osteomalacia in our patients are due to nutritional deficiencies of multiple vitamins.
112 citations
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TL;DR: Pantoea sp.
Abstract: Colonization ability of the two endophytic bacteria, isolated from surface sterilized seeds of Jaisurya variety of deep-water rice viz., Pantoea sp. and Ochrobactrum sp., was compared after genetically tagging them with a constitutively expressing green fluorescent protein gene (gfp). Confocal laser scanning microscopy (CLSM) of hydroponically grown seedlings of Jaisurya rice, inoculated with gfp-tagged endophytes, revealed that both Pantoea sp. and Ochrobactrum sp. colonized the intercellular spaces in the root cortex when inoculated separately. Colonization by gfp-tagged Ochrobactrum sp. was severely inhibited when co-inoculated with an equal number (10(5) c.f.u. ml(-1)) of wild type Pantoea sp., but the converse was not true. Pantoea sp. was a more aggressive endophytic colonizer of its host than Ochrobactrum sp. The potential of using GFP reporter and CLSM as tools in evaluating competitive ability of colonization among endophytes is herewith demonstrated.
112 citations
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TL;DR: In this article, the effect of Co-doping on absorption spectra and hence on the band gap was investigated. But the results were limited to the case of Zn1−xCoxO nanoparticles.
Abstract: Structural, local structural, optical and magnetic properties of sol–gel derived Zn1−xCoxO (0 ≤ x ≤ 0.04) nanoparticles have been studied. The crystallite structure, size, and lattice strain have been estimated by X-ray diffraction (XRD) with Rietveld refinement and high-resolution transmission electron microscopy (HRTEM). The small linear increase in lattice parameter ‘a’ and decrease in lattice parameter ‘c’ have been observed which can be attributed to the small distortion of Zn tetrahedron. Extended X-ray Absorption Fine Structure (EXAFS) measurements show that Co-doping creates oxygen vacancies without causing any significant change in the host lattice structure. X-ray Absorption Near Edge Structure (XANES) measurements rule out the presence of metallic Co clusters in the samples. Raman spectroscopy has been employed to study the crystalline quality, structural disorder, and defects in the host lattice. The tetrahedral coordination of the oxygen ions surrounding the zinc ions and wurtzite structure has been studied by FTIR analysis. UV-Vis measurements have been used to study the effect of Co-doping on absorption spectra and hence on the band gap. The band gap initially decreases for low Co-concentration and increases with higher Co-concentration. The PL spectra show six peaks out of which the peak in the ultraviolet (UV) region has been assigned to the near band edge excitonic emission (NBE) and other peaks are related to different defect states. Room temperature ferromagnetism (weak) is observed and magnetization increases with increasing Co-concentration. The grain boundaries, oxygen vacancy and bound magnetic polarons (BMPs) jointly may be responsible for this room temperature ferromagnetism. Variation of resistivity with temperature shows that a thermally activated conduction (Arrhenius) mechanism is valid in the high temperature region whereas Mott's variable-range hopping (VRH) mechanism is valid in the low temperature region.
112 citations
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TL;DR: In this paper, an excitation with 457.9nm line of Ar+ gives strong fluorescence from 3P0, 1 and 1D2 levels to various low-lying levels.
Abstract: Optical properties of Pr3+ doped lithium tellurite glass suitable for drawing fiber have been studied and profile of energy levels obtained. An excitation with 457.9 nm line of Ar+ gives strong fluorescence from 3P0,1 and 1D2 levels to various low-lying levels. It is found that the fluorescence intensity ratio from 3P1 and 3P0 levels to a common lower level viz. 3H5 at different temperatures can be used to measure the temperature.
112 citations
Authors
Showing all 12110 results
Name | H-index | Papers | Citations |
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Ashok Kumar | 151 | 5654 | 164086 |
Rajesh Kumar | 149 | 4439 | 140830 |
Prashant Shukla | 131 | 1341 | 85287 |
Sudhir Malik | 130 | 1669 | 98522 |
Vijay P. Singh | 106 | 1699 | 55831 |
Rakesh Agrawal | 105 | 668 | 107569 |
Gautam Sethi | 102 | 425 | 31088 |
Jens Christian Frisvad | 99 | 453 | 31760 |
Sandeep Kumar | 94 | 1563 | 38652 |
E. De Clercq | 90 | 774 | 30296 |
Praveen Kumar | 88 | 1339 | 35718 |
Shyam Sundar | 86 | 614 | 30289 |
Arvind Kumar | 85 | 876 | 33484 |
Padma Kant Shukla | 84 | 1232 | 35521 |
Brajesh K. Singh | 83 | 401 | 24101 |