Vol. 8 No. 1 (2023)

Articles

• Impact of Lockdown on Air Pollution: Evidence from the “2+26” Cities in the Beijing-Tianjin-Hebei Region

  Jialu Wei, Fuxing Chen, Min LU

  1

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• Preparation of SARS-CoV-2 Polymerase Nsp12 and Optimization of Expression Conditions

  Yifei Liu

  26

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• Geochemical Speciation and Principal Component Analysis of Toxic Metals in River Ogun Coastal Sediments, Southwestern Nigeria

  Olusiji Samuel Ayodele, Adedeji Adebukola Adelodun, David Rasaq Kazeem

  33

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• Sustainable Development, Electricity Generation and Renewable Energy substitution in Middle East Countries and Cooperation of Iran

  Fatemeh, M. Shahrtash

  57

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• Case Study in Cost Saving by CCUS Based on CO2 Transport Cost Model

  Jinlei Lu, Shuqi Shen

  67

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