Abstract Background The COVID-19 pandemic is adversely impacting modern human civilization.A global view using a systems science approach is necessary to recognize the close interactions between health of animals, humans and the environment.Discussion A model is developed initially by describing five sequential or parallel steps on how a RNA virus
We study a heretofore unexamined type of product differentiation, horizontally differentiated products with differential costs, and apply the analysis to retail pricing of fluid milk products.The theoretical models yield unique predictions for the relationship among prices of the usc gamecocks online four horizontally differentiated fluid milk prod
Prototheca is a unicellular, achlorophillous, ubiquitary and saprophytic alga spread in the surrounding environment mostly in vastly damp locations in the presence ar-13995n of the organic matters.This is deemed to be pathogenic to a low degree, taking immediate advantage of the environment and triggering diseases at a time when the immunological c
Jia Chen,1,2 Hai-Jian Ni,1,2 Fei Xue,3 Yun-Shan Fan,1,2 Xi-Fan Li,4 Xian-Zhen Chen,3 Shi-Sheng He1,2 1Department of Orthopaedics, Shanghai Tenth bettinardi studio stock 28 center shaft People’s Hospital, Tongji University School of Medicine, Shanghai, 200072, People’s Republic of China; 2Spinal Pain Research Institute, Tongji University