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1,053 results on '"Sarma, Arup Kumar"'

106. The potential global distribution of the papaya mealybug, Paracoccus marginatus, a polyphagous pest.

Author

Finch, Elizabeth A, Beale, Tim, Chellappan, Mani, Goergen, Georg, Gadratagi, Basana Gowda, Khan, Mohammed Abul Monjur, Rehman, Abdul, Rwomushana, Ivan, Sarma, Arup Kumar, Wyckhuys, Kris AG, and Kriticos, Darren J

Subjects
MEALYBUGS, PESTS, PAPAYA, CHEMICAL industry
Abstract

BACKGROUND: The papaya mealybug, Paracoccus marginatus, is a highly polyphagous invasive pest that affects more than 200 plants, many of which are of economic importance. We modelled the potential distribution of P. marginatus using CLIMEX, a process‐oriented, climate‐based niche model. We combined this model with spatial data on irrigation and cropping patterns to increase the real‐world applicability of the model. RESULTS: The resulting model agreed with known distribution points for this pest and with broad areas where P. marginatus has been reported, but for which no GPS data were available. Our model highlights the potential expansion of P. marginatus into novel areas in Central and East Africa, as well as further expansion in Central America and Asia, as these areas are highly climatically suitable, and have large expanses of suitable crop hosts. It also highlights areas, such as the central and eastern states of the USA as well as the western provinces of China, that are suitable for seasonal invasions of P. marginatus. CONCLUSION: Our results offer refined resolution on areas with high potential for invasion by P. marginatus. © 2020 Society of Chemical Industry [ABSTRACT FROM AUTHOR]

Published
2021
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107. Mining pit migration of an alluvial channel: experimental and numerical investigations.

Author

Barman, Bandita, Sarma, Arup Kumar, and Kumar, Bimlesh

Subjects
RIVER ecology, ALLUVIAL plains, HYDRODYNAMICS, SEDIMENT transport, BED load, FINITE differences
Abstract

Sand mining changes river morphology, which alternatively has adverse impact on hydrology, environment, and ecology of the river system. Quantitative analysis of migration speed of pit and erosion in the mining zone is necessary for both sustainable mining operation and channel bed stability. Sediment transport mechanism in a river also gets affected due to in-stream mining activities. In this research a numerical model has been developed to estimate migration of mining pit by using flux vector splitting finite difference scheme. One-dimensional shallow water hydrodynamic equations and sediment mass conservation equation of bed material for equilibrium bed load sediment transport have been used for simulation of channel bed profile. Here, the applicability of various bed load transport formulation on pit migration has been studied. The use of different bed load transport formulation shows different migration speed of mining pit and downstream erosion. The model is verified by using laboratory flume experiment data for mining pit migration of rectangular and trapezoidal pit. High-resolution experimental data of bed profile obtained from ultrasonic ranging system shows migration and downstream erosion of mining pit. Numerical model developed in this study manifests good agreement with the characteristics of propagation of mining-induced erosion for different bed load transport formulation, while quantitative agreement is achieved only for the Van Rijn approach of bed load transport equation as a closure of the governing equations. The present experimental and numerical analysis shows that channel morphology due to mining can be predicted by using one dimensional numerical model within the acceptable limit. [ABSTRACT FROM AUTHOR]

Published
2020
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108. Projection of urban settlement in eco-sensitive hilly areas and its impact on peak runoff.

Author

Patowary, Sagarika and Sarma, Arup Kumar

Subjects
URBAN growth, ENVIRONMENTAL impact analysis, URBAN planning, RUNOFF, LAND cover, URBAN watersheds
Abstract

Environmental degradation due to the rapid growth of urban sprawl to eco-sensitive areas emphasizes the need of future projection of urban settlement in eco-sensitive areas. As a promising step towards the eco-friendly urban development, this paper projects the urban settlement in hills of Guwahati city by using a well-validated urban settlement assessment model of the study area. Future values of the socio-economic, demographic and geographical parameters incorporated in the model have been determined with reference to the "Master Plan for Guwahati Metropolitan Area-2025". As per this model projection, by 2025, average 25.45% of the hilly area of Guwahati city is going to have an unplanned urban settlement, whereas, in 2011, it was only 14.33%. Future landuse land cover change data of the hills have been generated by spatially distributing the projected urban settlement depending on the grid-wise elevation in hills. This type of projection, done on the basis of future socio-economic and demographic condition derived from the master plan of a city can be used for environmental impact assessment of the plan. Finally, by using Rational Method, the impact of the future urban settlement on peak run-off generation has been evaluated for a watershed in the Fatasil hill of Guwahati city. The hydrological study has shown an alarming result with a 20.75% increase in peak run-off due to the conversion of additional 14.5% of the watershed area to urban settlement. [ABSTRACT FROM AUTHOR]

Published
2020
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118. Model-based analysis of urban settlement process in eco-sensitive area of developing country: a study with special reference to hills of an Indian city.

Author

Patowary, Sagarika and Sarma, Arup Kumar

Subjects
URBAN planning, SUSTAINABILITY, DEVELOPING countries
Abstract

Rapid and unplanned expansion of a city into its eco-sensitive areas like hills, wetlands, and forests is becoming a major concern, particularly in developing countries. Understanding the process and causes of such unplanned urban expansion is of paramount importance for framing sustainable urban development policies. This paper presents a modelling concept that relates urban settlement in such eco-sensitive areas with potential socio-economic, demographic and geographical factors. The model is applied to an Indian city Guwahati, which is experiencing serious environmental degradation due to unplanned urban settlement in its eco-sensitive hilly areas. While topographical and settlement data were derived using satellite data in GIS platform, all other necessary data were collected from relevant government organizations. On validation of the multi-linear regression model, the coefficient of determination and the root mean square error are obtained as 0.938 and 1.7, respectively. Model results show that geographical parameters are less influencing as compared to the other socio-economic and demographic factors. Sensitivity analysis of urban settlements in hills of Guwahati city carried out with respect to the considered factors reveals that land value and free space availability in the surrounding area of a hill are the most sensitive parameters. This indicates that city development plans should give more importance to outward spatial expansion in plain areas with regulated land value and zoning scheme to minimize unauthorized settlement in eco-sensitive hilly areas of Guwahati city. [ABSTRACT FROM AUTHOR]

Published
2018
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125. Membrane Bioreactors

Author

Rout, Vishal Kumar, Setia, Gunjit, Kaur, Simran, Kumar, Lakhan, Kumar, Saroj, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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126. Removal of Environmental Pollutants from Industrial Wastewater Using Conventional, Advanced Biotechnological Wastewater Treatment Processes

Author

Bhattacharyya, Sayani, Das, Manish, Banerjee, Srijoni, Das, Piyali, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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127. Microalgal Treatment of Wastewater and Production of Value-Added Products

Author

Garg, Rachna, Patel, Kulvendra, Vashist, Mallika, Singh, S. K., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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128. Environmental Sustainability Assessment of Wastewater Treatment Methods: An LCA Approach

Author

Patel, Kulvendra, Vashist, Mallika, Garg, Rachna, Singh, S. K., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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129. From Linear Economy to Circular Bio-economy: A Paradigm Shift in Wastewater Management

Author

Roy, Ankita, Ganguly, Nilanjana, Banerjee, Srijoni, Pandit, Soumya, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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130. Mitigating Water Pollution: The Synergy of Phytoremediation and Constructed Wetland Technology

Author

Vashist, Mallika, Garg, Rachna, Patel, Kulvendra, Singh, S. K., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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131. Anaerobic Digestion and Electromethanogenesis

Author

Pandit, Chetan, Pandit, Soumya, Rifat, Mahwish, Kar, Subhabrata, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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132. Contaminated Soils: Remedies, Hurdles, and Perspectives

Author

Ganguly, Nilanjana, Roy, Ankita, Banerjee, Srijoni, Pandit, Soumya, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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133. Recent Advances in the Application of Biosurfactants in Wastewater Treatment

Author

Vij, Aryan, Sankhayan, Shivangi, Kumari, Archana, Pandit, Soumya, Ray, Subhasree, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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134. Biological Wastewater Treatment

Author

Ahuja, Mishika, Verma, Vibhuti, Kaul, Mollina, Kumar, Lakhan, Kumar, Saroj, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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135. Scope of Nanomaterials in Treating Wastewater Produced by Industries

Author

Gupta, Aaryan, Roy, Arpita, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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136. Roles of Biofilms in Biological Wastewater Treatment: An Insight

Author

Malik, Humma Niaz, Kumari, Archana, Kumar, Sanjay, Ray, Subhasree, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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137. Ecologically and Economically Sustained Vermifiltration Process as a Promising Option for Decentralized Wastewater Treatment

Author

Thamizharasan, A., Keerthana, R. T., Anandhavalli, G., Gajalakshmi, S., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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138. Concepts, Techniques, and Current Advances of the Membrane Biofilm Reactor (MBfR) for the Behavior of Industrial Wastewater

Author

Sahoo, Gyanaranjan, Roul, Pravat Kumar, Mishra, Prasannajit, Dash, Asim Chandra, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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139. Nanoremediation to Fight Water Pollution

Author

Tonelli, Fernanda Maria Policarpo, Silva, Christopher Santos, Tonelli, Flávia Cristina Policarpo, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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140. Bio-Degradation of Phenol and Phenolic Compounds

Author

Mukherjee, Moupiya, Chakraborty, Tuhin, Banerjee, Srijoni, Pandit, Soumya, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Pandit, Soumya, editor, Kumar, Lakhan, editor, Mathuriya, Abhilasha Singh, editor, Jadhav, Dipak Ashok, editor, and Ray, Subhasree, editor

Published
2024
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141. Evaluation of Methods and Imputed Datasets

Author

Teegavarapu, Ramesh S. V., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, and Teegavarapu, Ramesh S.V.

Published
2024
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143. Machine Learning and Multiple Imputation Methods

Author

Teegavarapu, Ramesh S. V., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, and Teegavarapu, Ramesh S.V.

Published
2024
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144. Applications: Imputation of Missing Hydrometeorological Data

Author

Teegavarapu, Ramesh S. V., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, and Teegavarapu, Ramesh S.V.

Published
2024
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145. Spatial Interpolation Methods

Author

Teegavarapu, Ramesh S. V., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, and Teegavarapu, Ramesh S.V.

Published
2024
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146. Introduction to Missing Data

Author

Teegavarapu, Ramesh S. V., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, and Teegavarapu, Ramesh S.V.

Published
2024
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147. Temporal Interpolation Methods

Author

Teegavarapu, Ramesh S. V., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, and Teegavarapu, Ramesh S.V.

Published
2024
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148. Imputation Methods: An Overview

Author

Teegavarapu, Ramesh S. V., Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, and Teegavarapu, Ramesh S.V.

Published
2024
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149. Enhancing Water Conservation and Management in India: A Holistic Approach

Author

Kumar, Ankit, Yadav, Akhilesh Kumar, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Yadav, Akhilesh Kumar, editor, Yadav, Kanchan, editor, and Singh, Vijay P., editor

Published
2024
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150. Future Directions and Innovations in Computational Water Management

Author

Bansal, Sumit, Sindhi, Vandana, Singla, Bhim Sain, Singh, V. P., Editor-in-Chief, Berndtsson, R., Editorial Board Member, Rodrigues, L. N., Editorial Board Member, Sarma, Arup Kumar, Editorial Board Member, Sherif, M. M., Editorial Board Member, Sivakumar, B., Editorial Board Member, Zhang, Q., Editorial Board Member, Yadav, Akhilesh Kumar, editor, Yadav, Kanchan, editor, and Singh, Vijay P., editor

Published
2024
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