Tactile feedback display with spatial and temporal resolutions.

We report the electronic recording of the touch contact and pressure using an active matrix pressure sensor array made of transparent zinc oxide thin-film transistors and tactile feedback display using an array of diaphragm actuators made of an interpenetrating polymer elastomer network. Digital replay, editing and manipulation of the recorded touch events were demonstrated with both spatial and temporal resolutions. Analog reproduction of the force is also shown possible using the polymer actuators, despite of the high driving voltage. The ability to record, store, edit, and replay touch information adds an additional dimension to digital technologies and extends the capabilities of modern information exchange with the potential to revolutionize physical learning, social networking, e-commerce, robotics, gaming, medical and military applications

Progress in the Research of Environmental Macroeconomics

This review systematically introduces the current main research directions of environmental macroeconomics. Environmental macroeconomics research aims to study the relationship between economic development and the ecological environment and ultimately achieve green outcomes. At the same time, maintaining a moderate economic scale within the environmental setting is vital to get rid of excessive dependence on economic growth. This review draws on the traditional macroeconomics framework, focusing on economic growth, the economics of climate, economic policy, work, consumption, technological progress, industrial structure, and other topics. Although most studies have highlighted the importance of environmental issues, few empirical analyses combine environmental policy with economic policy, production, consumption, climate change, etc., and theories such as ecological, technological progress, business cycle, and environmental policy lack the necessary practical support. It is, therefore, difficult to put forward appropriate and measurable policy recommendations. Environmental macroeconomics is still a relatively new field of research, the theoretical system has flaws, and innovations in models still need to be improved. We suggest that environmental policy formulation be placed in a dynamic general equilibrium framework

Progress in the Research of Environmental Macroeconomics

This review systematically introduces the current main research directions of environmental macroeconomics. Environmental macroeconomics research aims to study the relationship between economic development and the ecological environment and ultimately achieve green outcomes. At the same time, maintaining a moderate economic scale within the environmental setting is vital to get rid of excessive dependence on economic growth. This review draws on the traditional macroeconomics framework, focusing on economic growth, the economics of climate, economic policy, work, consumption, technological progress, industrial structure, and other topics. Although most studies have highlighted the importance of environmental issues, few empirical analyses combine environmental policy with economic policy, production, consumption, climate change, etc., and theories such as ecological, technological progress, business cycle, and environmental policy lack the necessary practical support. It is, therefore, difficult to put forward appropriate and measurable policy recommendations. Environmental macroeconomics is still a relatively new field of research, the theoretical system has flaws, and innovations in models still need to be improved. We suggest that environmental policy formulation be placed in a dynamic general equilibrium framework

The Dynamic Relationship between China’s Economic Cycle, Government Debt, and Economic Policy

Economic growth is an integral part of the Sustainable Development Goals (SDGs), especially SDG 8. We combine 10 economic constraints and build a five-variable (structural vector autoregressive) SVAR model based on China’s time series data of 1978–2017. The empirical results show: (1) The Chinese government adopted different economic policies at different stages of reform and opening up; (2) From the impulse response results, China’s excessively high government debt ratio has begun to inhibit economic growth; (3) In terms of policy selection and coordination, the Chinese government mostly adopts a “discretion” adjustment strategy. In most cases, the fiscal and monetary policies were in the same direction, and the “double expansionary” and “double contractionary” policy coordination may become mainstream; (4) The results of variance decomposition showed that both fiscal and monetary policies can effectively regulate economic growth at the present stage, and the contribution rates of exogenous shocks to the prediction variance of economic growth rate were about 25%

A novel negative pressure isolation device reduces aerosol exposure: A randomized controlled trial.

BACKGROUND AND AIM: The COVID-19 pandemic has led to a proliferation of intubation barriers designed to protect healthcare workers from infection. We developed the Suction-Assisted Local Aerosol Containment Chamber (SLACC) and tested it in the operating room. The primary objectives were to determine the ease and safety of airway management with SLACC, and to measure its efficacy of aerosol containment to determine if it significantly reduces exposure to health care workers. METHODS: In this randomized clinical trial, adult patients scheduled to undergo elective surgery with general endotracheal anesthesia were screened and informed consent obtained from those willing to participate. Patients were randomized to airway management either with or without the SLACC device. Patients inhaled nebulized saline before and during anesthesia induction to simulate the size and concentration of particles seen with severe symptomatic SARS-CoV-2 infection. RESULTS: 79 patients were enrolled and randomized. Particle number concentration (PNC) at the patients and healthcare workers locations were measured and compared between the SLACC vs. control groups during airway management. Ease and success of tracheal intubation were recorded for each patient. All intubations were successful and time to intubation was similar between the two groups. Healthcare workers were exposed to significantly lower particle number concentrations (#/cm3) during airway management when SLACC was utilized vs. control. The particle count outside SLACC was reduced by 97% compared to that inside the device. CONCLUSIONS: The SLACC device does not interfere with airway management and significantly reduces healthcare worker exposure to aerosolized particles during airway management