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481 results on '"Singh, Jagdish P."'

9. List of contributors

Author

Baruah, Gaurangdhar, primary, Catunda, T., additional, Dwivedi, Yashashchandra, additional, Gazali, Zainab, additional, Goswami, Debabrata, additional, Goswami, Sonaly, additional, Kumar, Rohit, additional, Kumar, Subodh, additional, Mahato, Krishna K., additional, Mandal, Bappaditya, additional, Nampoori, V.P.N., additional, Narayanan, K., additional, Pandey, Durgatosh, additional, Parmar, Abhishek, additional, Philip, J., additional, Prabhu, Vijendra, additional, Prasad, Ram L., additional, Rai, Awadhesh K., additional, Rai, Nilesh K., additional, Rai, Pradeep K., additional, Rai, Prajjwal, additional, Rai, Punam, additional, Rai, Richa, additional, Rai, Shachindra N., additional, Rai, Shyam B., additional, Rai, Suman, additional, Rai, Virendra N., additional, Rodrigues, Jackson, additional, Roy, Abhishek, additional, Sharma, Archana, additional, Sharma, Ramesh C., additional, Singh, Bhrigu N., additional, Singh, Jagdish P., additional, Singh, Tanya, additional, Singh, Vineeta, additional, Thakur, Surya N., additional, Tiwari, Lal B., additional, Vaishakh, Manu, additional, Vijayakumar, K.P., additional, and Warrier, Anita R., additional

Published
2023
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14. Effect of laser intensity and dynamics of plasma on laser induced breakdown spectroscopy

Author

Rai, V. N. and Singh, Jagdish P.

Subjects
Physics - Plasma Physics, Physics - Optics
Abstract

Laser-induced breakdown spectroscopy (LIBS) show enhancement in its signal, when the laser-induced plasma is confined/decelerated under the effect of an external steady magnetic field or in a small cavity. An enhancement in LIBS signal has been observed ~2 times in the case of magnetic confinement. Combination of magnetic and spatial confinement provide enhancement by an order of magnitude. Theoretical analysis of the decelerated plasma has been found in agreement with the experimental observations. The enhancement in LIBS signal is found dependent on the efficiency of plasma confinement as well as on the time duration of laser. The saturation in LIBS signal at higher laser intensity is found correlated with electron-ion collision frequency as well as on the dynamics and instability of plasma plume. Possibility of further enhancement in emission has also been discussed.

Published
2014

20. Contributors

Author

Afgan, Muhammad Sher, primary, Ayyalasomayajula, K.K., additional, Berberoglu, Halil, additional, Bhatt, Chet R., additional, Bilge, Gonca, additional, Bol'shakov, Alexander A., additional, Boyaci, Ismail Hakkı, additional, Busser, B., additional, Campanella, Beatrice, additional, Diaz, Daniel, additional, Diwakar, P.K., additional, Eseller, Kemal Efe, additional, Fabre, C., additional, Gautam, Ghaneshwar, additional, Gonzalez, J.J., additional, Gottfried, Jennifer L., additional, Goueguel, Christian L., additional, Gundawar, Manoj Kumar, additional, Hahn, David W., additional, Harilal, S.S., additional, Hark, Richard R., additional, Harmon, Russell S., additional, Helstern, Christopher M., additional, Hou, Zongyu, additional, Jain, Jinesh C., additional, Kumar, Rohit, additional, Lasue, Jeremie, additional, Legnaioli, Stefano, additional, Mao, X.L., additional, Maurice, Sylvestre, additional, Maurya, Gulab Singh, additional, McIntyre, Dustin L., additional, Miloshevsky, G., additional, Moncayo, S., additional, Motto-Ros, V., additional, Noll, Reinhard, additional, Pagnotta, Stefano, additional, Palleschi, Vincenzo, additional, Panne, Ulrich, additional, Parigger, Christian G., additional, Pati, Jayanta Kumar, additional, Poggialini, Francesco, additional, Rai, Abhishek Kumar, additional, Rai, Awadhesh Kumar, additional, Rai, Pradeep Kumar, additional, Rai, V.N., additional, Russo, Richard E., additional, Sanghapi, Herve K., additional, Senesi, Giorgio S., additional, Sezer, Banu, additional, Sheta, Sahar, additional, Singh, Jagdish P., additional, Singh, Rajesh Kumar, additional, Surmick, David M., additional, Thakur, Surya N., additional, Tiwari, Pravin Kumar, additional, Tripathi, Markandey M., additional, Wan, Xiong, additional, Wang, Zhe, additional, Wiens, Roger C., additional, Yao, Shunchun, additional, Yoo, J., additional, Yueh, Fang Y., additional, and Zhang, Lei, additional

Published
2020
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24. Preface

Author

Singh, Jagdish P., primary and Thakur, Surya N., additional

Published
2020
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29. An Investigation of the Inflammatory Landscape in the Brain and Bone Marrow of the APP/PS1 Mouse

Author

Chittimalli, Kishore, Adkins, Stephen, Arora, Sanjay, Singh, Jagdish, and Jarajapu, Yagna P.R.

Abstract

Background: The APP/PS1 mouse model recapitulates pathology of human Alzheimer’s disease (AD). While amyloid-β peptide deposition and neurodegeneration are features of AD, the pathology may involve inflammation and impaired vascular regeneration.Objective: This study evaluated inflammatory environments in the brain and bone marrow (BM), and the impact on brain microvascular density.Methods: BM and frontal cortex from male nine-month-old APP/PS1 or the control C57Bl6/j mice were studied. Vascular density and inflammatory cells were evaluated in the sections of frontal cortex by immunohistochemistry. Different subsets of hematopoietic stem/progenitor cells (BM) and monocyte-macrophages were characterized by flow cytometry and by clonogenic assays. Myelopoietic or inflammatory factors were evaluated by real-time RT-PCR or by western blotting.Results: CD34+or CD31+vascular structures were lower (p< 0.01, n= 6) in the frontal cortex that was associated with decreased number of Lin−Sca-1+cKit+vasculogenic progenitor cells in the BM and circulation (p< 0.02, n= 6) compared to the control. Multipotent progenitor cells MPP4, common lymphoid, common myeloid and myeloid progenitor cells were higher in the APP/PS1-BM compared to the control, which agreed with increased numbers of monocytes and pro-inflammatory macrophages. The expression of pro-myelopoietic factors and alarmins was higher in the APP/PS1 BM-HSPCs or in the BM-supernatants compared to the control. Frontal cortices of APP/PS1 mice showed higher number of pro-inflammatory macrophages (CD11b+F4/80+or CD80+) and microglia (OX42+Iba1+).Conclusions: These findings show that AD pathology in APP/PS1 mice is associated with upregulated myelopoiesis, which contributes to the brain inflammation and decreased vascularity.

Published
2024
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33. Combustion Applications of Laser-Induced Breakdown Spectroscopy

Author

Yueh, Fang Y., Tripathi, Markandey M., Singh, Jagdish P., Adibi, Ali, Series editor, Asakura, Toshimitsu, Series editor, Rhodes, William T., Editor-in-chief, Hänsch, Theodor W., Series editor, Kamiya, Takeshi, Series editor, Krausz, Ferenc, Series editor, Monemar, Bo A.J., Series editor, Venghaus, Herbert, Series editor, Weber, Horst, Series editor, Weinfurter, Harald, Series editor, Musazzi, Sergio, editor, and Perini, Umberto, editor

Published
2014
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35. List of Contributors

Author

Beć, Krzysztof B., primary, Bhatt, Chet R., additional, Chowdhury, Joydeep, additional, Coluccelli, Nicola, additional, Dasgupta, Jyotishman, additional, De Boni, Leonardo, additional, Delbeck, Sven, additional, Dubey, Pankaj, additional, Dwivedi, Yashashchandra, additional, Gautam, Rekha, additional, Ghany, Charles T., additional, Gupta, V.P., additional, Heise, H. Michael, additional, Huck, Christian W., additional, Jung, Young M., additional, Karir, Ginny, additional, Karmakar, Shreetama, additional, Kumar, Vikas, additional, Küpper, Lukas, additional, McIntyre, Dustin L., additional, Mendonça, Cleber R., additional, Mukhopadhyay, Anamika, additional, Noda, Isao, additional, Ozaki, Yukihiro, additional, Polli, Dario, additional, Prabhu, Shriganesh S., additional, Roy, Palas, additional, Saini, Jyoti, additional, Sil, Sanchita, additional, Singh, Jagdish P., additional, Thakur, Surya N., additional, Umapathy, Siva, additional, Verma, Kanupriya, additional, Viswanathan, K.S., additional, Vivas, Marcelo G., additional, Xu, Yizhuang, additional, and Yueh, Fang Y., additional

Published
2018
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37. Application of wavelength-dispersive X-ray fluorescence spectrometry to biological samples

Author

Singh, Vivek K., Rai, Pradeep K., Pathak, Ashok K., Tripathi, Durgesh K., Singh, Subhash C., and Singh, Jagdish P.

Subjects
Nematoda, Wheat, Nuclear energy, Fluorescence spectroscopy, Gallstones, Nuclear industry, Mineral industry, X-ray spectroscopy, Fluorescence, Diagnostic equipment (Medical), Mining industry, Kidney stones, Chemistry, Engineering and manufacturing industries, Physics, Science and technology
Abstract

Wavelength-dispersive X-ray fluorescence (WD-XRF) spectrometry involves the classification and quantification of several kinds of biological samples. Multiple applications of WD-XRF spectrometry are anticipated in the mining industries, nuclear power industry, [...]

Published
2017

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