He is a world-renowned researcher.

He is known as an excellent researcher.

I am a member of that research association.

We are focusing on the research and development of new products.

I conducted a research project as a summer vacation homework.

These test results are showing unexpected outcomes.

We analyzed the data of the experimental group.

He has a deep interest in empirical science.

The experimenter analyzed the data in detail.

Animal experiments are necessary for the advancement of science, but there are also ethical issues.