SPEAKER PAUL RYAN on whether the president has the power to pardon himself: "I don't know the technical answer to that ques
![Microbiome of Drinking Water Biofilters is Influenced by Environmental Factors and Engineering Decisions but has Little Influence on the Microbiome of the Filtrate | Environmental Science & Technology Microbiome of Drinking Water Biofilters is Influenced by Environmental Factors and Engineering Decisions but has Little Influence on the Microbiome of the Filtrate | Environmental Science & Technology](https://pubs.acs.org/cms/10.1021/acs.est.0c01730/asset/images/large/es0c01730_0002.jpeg)
Microbiome of Drinking Water Biofilters is Influenced by Environmental Factors and Engineering Decisions but has Little Influence on the Microbiome of the Filtrate | Environmental Science & Technology
![Low Temperature, Selective Atomic Layer Deposition of Cobalt Metal Films Using Bis(1,4-di-tert-butyl-1,3-diazadienyl)cobalt and Alkylamine Precursors | Chemistry of Materials Low Temperature, Selective Atomic Layer Deposition of Cobalt Metal Films Using Bis(1,4-di-tert-butyl-1,3-diazadienyl)cobalt and Alkylamine Precursors | Chemistry of Materials](https://pubs.acs.org/cms/10.1021/acs.chemmater.7b02456/asset/images/large/cm-2017-024562_0003.jpeg)