This is the 9260th most frequent Russian word.
социологи
Sociologists.
The word "социологи" refers to professionals who engage in the study of societal behaviors, used here as the subject of the sentence.
Социологи изучают поведение групп людей в обществе.
Sociologists study the behavior of groups of people in society.
The word "социологами" is the instrumental case of "социологи," indicating by whom the studies were conducted.
Недавние исследования, проведённые социологами, показали интересные тенденции.
Recent studies conducted by sociologists have shown interesting trends.
The word "социологов" is the genitive plural form of "социологи," indicating possession or relation to their works.