Cross-sectional study
(Science: epidemiology) a study in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with longitudinal studies which are followed over a period of time.
Synonym: horizontal study.
Cross-sectional study (Science: epidemiology) a study in which the presence or absence of disease or other health-related variables are determined in each member of the study population or in a representative sample at one particular time. This contrasts with longitudinal studies which are followed over a period of time. Synonym: horizontal study...
Lymphocytes are a type of white blood cell capable of producing a specific immune response to unique antigens. In thi..
Learn about the general structure of a eukaryotic gene, the transcription factors, and post-transcriptional regulation....
While learning and intelligence are associated with the functions of a conscious mind, sleep and dreams are activities o..
This lesson explores the impact of biosecurity threats, and why they need to be identified and managed. Examples to incl..
With regard to the population size of a species and what factors may affect them, two factors have been defined. They ar..
Plants are characterized by having alternation of generations in their life cycles. This tutorial is a review of plant m..
