Introduction: The research was conducted during the COVID-19 (SARS-CoV-2) lockdown measures of People’s Republic of China (PRC) with a history & continuation of nuclear proliferation, current electronic warfare, metallic pollution from military heavy industry, and actinic radiation pollutants...

Background and Objective: Immunization is a protective measure against COVID‐19. This research aimed to estimate the association of protective levels of total IgG anti-S antibodies to SARS-CoV2 induced by vaccination and clinical and sociodemographic characteristics in a population of Cali,...

We propose a model of "trade" between high income and low-income groups where the rich being scared of the spread of infection hires the poor to engage them in exposure-intensive outdoor activities as workers in the household industry. People who endure hardships and sustain exposure to...

We propose a model of "trade" between high income and low-income groups where the rich being scared of the spread of infection hires the poor to engage them in exposure-intensive outdoor activities as workers in the household industry. People who endure hardships and sustain exposure to...

This paper examines the impact of contract system on enterprise liquidity through the Tirole's fixed investment model, and verifies the authenticity of the method derivation via numerical Analog verification. We find that if considering the contract system, the optimal liquidity scale of a...

The emergence of a decentralized peer-to-peer platforms that matches lending and borrowing without collateral requirements and bank lending channels allowed to develop the new market of alternative financial instruments. In this paper, we aim to analyze the origins and nature of alternative...

The emergence of a decentralized peer-to-peer platforms that matches lending and borrowing without collateral requirements and bank lending channels allowed to develop the new market of alternative financial instruments. In this paper, we aim to analyze the origins and nature of alternative...