Walkie-talkies could work long-distance underwater

50 Pricing American put options model with application to oil options 40 Proteomic signatures of ambient air pollution and risk of non-alcoholic fatty liver disease: A prospective cohort study in the UK Biobank. 40 Machine Learning for Fuel Property Predictions: A Multi-Task and Transfer Learning Approach 20 Environmental regulation and carbon emission efficiency: Evidence from pollution levy standards adjustment in China. 20 Impact of Financing Constraints on Firm Performance: Moderating Effect Based on Firm Size. 10 Can green finance promote green innovation? The moderating effect of environmental regulation 10 Research on the impact mechanism of heterogeneous environmental regulation on enterprise green technology innovation 10 Impact of fintech and environmental regulation on green innovation: inspiration from prefecture-level cities in China 10 How does environmental regulation affect carbon productivity? The role of green technology progress and pollution transfer. 10 Can environmental regulation foster incremental enhancement and quality improvement in green technological innovation under the background of the digital development?