| reproductive ratio | <epidemiology> 1. Basic reproductive ratio , Ro , a dimensionless parameter which encapsulates the biological details of different transmission mechanisms. For microparasites, Ro , is defined as the average number of secondary cases of infection to which one primary case gives rise throughout its infectious period if introduced into a defined population consisting solely of susceptible individuals. For macroparasites, Ro , is the average number of female offspring (or just offspring in the case of hermaphroditic species) produced throughout the lifetime of a mature female parasite, which themselves achieve reproductive maturity in the absence of density-dependent constraints on the parasite establishment, survival or reproduction. Also known as the basic reproduction rate, number. 2. Effective reproductive ratio , R , The number of secondary cases (microparasites) or female offspring (macroparasites) produced in a host population not consisting entirely of susceptible individuals (microparasites) or within which density dependent constraints limit parasite population growth (macroparasites). Under conditions of stable endemic infection, R=1. (05 Dec 1998) |
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| reproductive surgeon | An ob-gyn or urologist who specialises in the surgical correction of anatomical disorders that impair reproductive function. (09 Oct 1997) |
| reproductive system | In women, the organs that are directly involved in producing eggs and in conceiving and carrying babies. (12 Dec 1998) |
| porcine reproductive and respiratory syndrome | <syndrome> A syndrome characterised by outbreaks of late term abortions, high numbers of stillbirths and mummified or weak newborn piglets, and respiratory disease in young unweaned and weaned pigs. It is caused by swine infertility and respiratory syndrome virus. (radostits et al., veterinary medicine, 8th ed, p1048) (12 Dec 1998) |
| aestho-physiology | <study> The science of sensation in relation to nervous action. Origin: Gr. To perceive + E. Physiology. (04 Mar 1998) |
| bacterial physiology | Physiological processes and activities of bacteria. (12 Dec 1998) |
| blood physiology | Observable characteristics of blood activities and functions, such as blood groups, coagulation processes, etc. (12 Dec 1998) |
| cardiovascular physiology | Functions and activities of the cardiovascular system as a whole or of any of its parts. (12 Dec 1998) |
| general physiology | The science of the functions or vital processes common to almost all living things, whether animal or plant, as opposed to aspects of physiology peculiar to particular types of animals or plants, or to the application of physiology to applied sciences such as medicine and agriculture. (05 Mar 2000) |
| viral physiology | Biological processes and activities of viruses. (12 Dec 1998) |
| pathologic physiology | That part of the science of disease concerned with disordered function, as distinguished from anatomical lesions. Synonym: physiopathology. (05 Mar 2000) |
| cell physiology | Characteristics and physiological processes of cells from cell division to cell death. (12 Dec 1998) |
| respiratory physiology | Functions and activities of the respiratory tract as a whole or of any of its parts. (12 Dec 1998) |
| circulatory and respiratory physiology | Functions and activities of cardiovascular circulation and of respiration and respiratory mechanics. (12 Dec 1998) |
| physiology | <study> The study of how living organisms function. (09 Oct 1997) |