This paper examines the social life of masks in colonial Korea with a focus on their use in hygienic practices.It argues that masks first appeared in the disease control scene in late 1919 when the Governor-General of vegetable glycerin for sale Korea belatedly introduced preventative measures against the Spanish Influenza pandemic.Since then, the
This work presents a new low-cost and environmentally friendly optical transducer based on surface scattering in a neflintw-r6mpw side-polished fiber mounted on a glass groove.The surface roughness caused by polishing is used to estimate the change in refractive index on top of the fiber.Changing the surrounding index affects the scattering propert
Objective: In this study, we investigated the effect of various oxygen therapy regimens on oxygenation in patients with acute type A aortic dissection (AAD).Methods: A quasi-randomized controlled trial was conducted, in which patients with AAD hospitalized for surgery from June to September 2021 were assigned to the control group (patients received
Michael I.Pupin was a professor at the University of Columbia, member and the president of Academy of Science in tillman 750m New York; one of the esteemed members of USA National Academy of Science; member and president of many experts and scientific institutions and societies in the USA; member of State Council for Scientific Research by presiden
Background: Patients with chronic liver disease (CLD) have impaired vaccine immunogenicity and an excess risk of severe COVID-19.While variant-adapted COVID-19 mRNA vaccines are recommended for vulnerable individuals, their efficacy in patients with CLD has not been studied.Methods: We present the first evaluation of XBB.1.5 COVID-19 vaccine immuno