Optimized biosynthesis and performance enhancement of γ-PGA from Bacillus licheniformis: a study on wettability, microstructure, and environmental performance by Mingming Cheng, Shuoshi Zhang, Jianbo Gao, Wenqing Liu, Gang Zhou, Tao Sui, Daoquan Cheng, Cheng Wang, Xiangchuan Wang, Xiaoyan Li, Yuxi Li

“…Infrared spectroscopy analysis showed that the purified product contained typical functional groups of γ-PGA. Changes in the contact angle of γ-PGA solution with coal dust over time demonstrated that brown coal was wetted extremely quickly, with the largest change in contact angle; within 5 min of dropping the fermentation liquid, the contact angle sharply decreased from 69° to 0°, completely wetting the brown coal. …”
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Selective Separation of Scandium in Acidic Water Using Carboxyl Functionalized Covalent Phosphonitrile Polymers by Yu BAI, Ayinuer WUSHUER, Lei OUYANG, Lijin HUANG, Qin SHUAI

“…However, because the pore size of the vast majority of covalent organic polymers currently synthesized is much larger than those of metal ions, this method is generally applicable to larger sized ions such as hydrated uranium ions. …”
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Training Manual for Prevention of Covid-19 Disease among Hospital Personnel by Ali Poormohammadi, Ghasem Azarian

“…Most respiratory droplets containing viruses are in this size range. Medium droplets (10 to 50μm) remain in the air for several minutes. …”
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Study on Innovative Practices to Promote Girls’ Retention and Transition to Secondary and Higher Learning Institutions in Sub-Saharan Africa. by Ayiga, Natal, Adyanga, Francis Akena, Akello, Jacqueline

“…The economy of the study regions is predominantly agricultural with the majority of the population depending on subsistence farming, living in rural areas, and currently, the poorest in all aspects of development in Uganda. …”
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