Novel variants of clade 2.3.4 highly pathogenic avian influenza ... by Gu, Min; Zhao, Guo; Zhao, Kunkun; Zhong, Lei; Huang, Junqing; Wan, Hongquan; Wang, Xiaoquan; Liu, We / Emerging Infectious Diseases.
Sometimes a dynamic character is called a developing character. Flat Character A character who reveals only one, maybe two, personality traits in a story or novel, and the trait(s) do not change.
To extrapolate character traits, you can use direct characterization as well as indirect characterization. Indirect characterization occurs when the author describes behaviors and reactions in the character. From such behaviors and reactions, the reader can deduct more facts about the character than the author lets on. From this excerpt, you can deduct that Mary is submissive to her husband.