This is a preview. Log in through your library . Abstract Aristotelian principles still dominate botanical classification. Biological classification has undergone a major transformation during the ...

Abstract elementary classes (AECs) constitute a broad framework within model theory that extends classical first‐order logic, accommodating structures and theories that lie beyond its reach. By ...

This paper attempts to examine the practice of health education from the perspective of learning theory. Examples of recent health education programs are discussed in this context. It is suggested ...