Sentence examples for based on observational from inspiring English sources

Cell density-based migration was based on observational evidence that cells and clusters are both drawn towards the most densely populated region of a cell's local environment.

These estimates were based on observational data during infant observation.

Some principles of example-based learning are also based on observational learning [ 12].

As we observed here, most studies are based on observational research.

On the one hand, it could be rational if based on observational or social learning.

The initial promises made that HRT could reduce future cardiovascular disease were based on observational studies.

For example, Dr. Berry notes that, based on observational studies, thousands of women were given bone marrow transplants for breast cancer.

This was based on observational studies in Africa, which noted that people there had diets high in fiber and correspondingly low rates of colon cancer.

The recommendations are based on observational studies that have found associations between the behaviors and a reduced risk of breast cancer, but such studies do not prove a cause-and-effect relationship.

As the meta-analysis, published in the BMJ on Tuesday, is based on observational research, it cannot draw conclusions about cause and effect, but the authors say their findings have important public policy implications.

At the start of a ramp that tracks the 13-billion-year history of the universe is a plaque with scientific notations under the title "Pathway Cosmological Parameters Based on Observational Data and Theoretical Models, 1 January 2000".