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A polytropic process is a thermodynamic process that obeys the relation: = where p is the pressure , V is volume , n is the polytropic index , and C is a constant. The polytropic process equation describes expansion and compression processes which include heat transfer.
The normalized density as a function of scale length for a wide range of polytropic indices. In astrophysics, a polytrope refers to a solution of the Lane–Emden equation in which the pressure depends upon the density in the form = (+) / = + /, where P is pressure, ρ is density and K is a constant of proportionality. [1]
This glossary of biology terms is a list of definitions of fundamental terms and concepts used in biology, the study of life and of living organisms.It is intended as introductory material for novices; for more specific and technical definitions from sub-disciplines and related fields, see Glossary of cell biology, Glossary of genetics, Glossary of evolutionary biology, Glossary of ecology ...
3' untranslated region (3'-UTR). Also three-prime untranslated region, 3' non-translated region (3'-NTR), and trailer sequence.. 3'-end. Also three-prime end.. One of two ends of a single linear strand of DNA or RNA, specifically the end at which the chain of nucleotides terminates at the third carbon atom in the furanose ring of deoxyribose or ribose (i.e. the terminus at which the 3' carbon ...
The mean of the two parental values for a quantitative trait in an individual offspring or in a specific cross. [8] migration mimicry The process by which an organism evolves to resemble another object, often an organism of another species. Mimicry can also occur between individuals of the same species.
n=0 is a constant-pressure process because the polytropic equation reduces to P = constant since v^0 = 1. I also don't understand the comments about negative polytropic exponent. Look at the derivation regarding the energy transfer ratio. For example, a process would have a polytropic exponent of -1 if it has an energy transfer ratio of 6.
Non-ecotropic MLVs may be xenotropic (from xenos, "foreign", infecting non-mouse species), polytropic or modified polytropic (infecting a range of hosts including mice). Among the latter MLVs are amphotropic viruses (Gr. amphos, "both") that can infect both mouse cells and cells of other animal species.
Colloquially, the term "mitosis" is often used to refer to the entire process of cell division, not just the division of the nucleus. mitotic index (MI) The proportion of cells within a sample which are undergoing mitosis at the time of observation, typically expressed as a percentage or as a value between 0 and 1.