| POPLINE | Population Information Online |
|---|---|
| PS | pacemaker syndrome; paired stimulation; paradoxical sleep; paraspinal; parasympathetic; Parkinson sy... |
| s | Greek lower case letter sigma; conductivity; cross section; millisecond; molecular type or bond; pop... |
| T90 | time required for 90% mortality in a population of microorganisms exposed to a toxic agent |
| TD | the time required to double the number of cells in a given population; thermal death time |
| alu-equivalent family | A set of sequences in a mammalian genome that is related to the human Alu family. (05 Mar 2000) |
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| alu family | A set of dispersed sequences in the human genome having Alu cleavage sites at each end. (05 Mar 2000) |
| cancer family | A group of blood relatives of whom several have had cancer; the mode of aggregation may be genetic and homogeneous, as in familial polyposis of the colon; diverse as in neurofibromatosis; or due to common exposure to a carcinogenic or oncogenic agent, such as a virus. (05 Mar 2000) |
| gene family | <molecular biology> A set of genes coding for diverse proteins which, by virtue of their high degree of sequence similarity, are believed to have evolved from a single ancestral gene. An example is the immunoglobulin family where the characteristic features of the constant domains are found in various cell surface receptors. (18 Nov 1997) |
| phage integrase family | <enzyme> Enzymes that mediate site specific recombination in prokaryotes. They fall into two families, phage integrases and resolvases. (18 Nov 1997) |
| physicians, family | Those physicians who have completed the education requirements specified by the american academy of family physicians. (12 Dec 1998) |
| colon cancer, family history of | Colorectal cancer can run in families. The colon cancer risk is higher if an immediate (first-degree) family member (parents, siblings or children) had colorectal cancer and even higher if more than one such relative had colorectal cancer or if a family member developed the cancer at young age (younger than 55 years). Under any of these circumstances, individuals are recommended to undergo a colonoscopy every three years starting at an age that is 7-10 years younger than when the youngest family member with the cancer wasdiagnosed. For example, if a parent had colon cancer diagnosed at age 50, colonoscopy should start in that person's children at 40-43 years of age. (12 Dec 1998) |
| multigene family | <molecular biology> A set of genes coding for diverse proteins which, by virtue of their high degree of sequence similarity, are believed to have evolved from a single ancestral gene. An example is the immunoglobulin family where the characteristic features of the constant domains are found in various cell surface receptors. (18 Nov 1997) |
| professional-family relations | The interactions between the professional person and the family. (12 Dec 1998) |
| src-family kinases | <enzyme> Family of non-receptor protein-tyrosine kinases homologous to src. They are closely related intracellular enzymes that participate in signal transduction pathways in a variety of haemopoietic cells and especially their surface receptors. Registry number: EC 2.7.1.- (12 Dec 1998) |
| nuclear family | A family composed of husband and wife with their children. (12 Dec 1998) |
| extended family | A group of persons comprising members of several generations united by blood, adoptive, marital or equivalent ties. (05 Mar 2000) |
| extended family therapy | A type of family therapy that involves family members outside the nuclear family and who are closely associated with it and affect it. (05 Mar 2000) |
| family | A taxonomic classification between genus and order. (09 Oct 1997) |
| family characteristics | Size and composition of the family. (12 Dec 1998) |