| tS | time required to complete the S phase of the cell cycle |
|---|---|
| WCL | Wenckebach cycle length; whole cell lysate |
| GC | ganglion cell; gas chromatography; general circulation; general closure; general condition; generali... |
| MCD | 1) Minimal Change Disease 2) Menstrual Cycle Day |
| BRAC | basic rest-activity cycle |
| fuel cycle | The series of steps required to produce electricity. The fuel cycle includes mining or otherwise acquiring the raw fuel source, processing and cleaning the fuel, transport, electricity generation, waste management and plant decommissioning. (05 Dec 1998) |
|---|---|
| futile cycle | <biochemistry> Any seqence of enzyme catalysed reactions in which the forward and reverse processes (catalysed by different enzymes) are consititutively active. Frequently used to describe the cycle of phosphorylation and dephosphorylation of phosphatidyl inositol derivatives in cell membranes. (05 Jan 1998) |
| levelised life-cycle cost | The present value of the cost of a resource, including capital, financing and operating costs, expressed as a stream of equal annual payments. This stream of payments can be converted to a unit cost of energy by dividing the annual payment amount by the annual kilowatt-hours produced or saved. By levelizing costs, resources with different lifetimes and generating capabilities can be compared. (05 Dec 1998) |
| life cycle | The entire life history of a living organism. (05 Mar 2000) |
| life-cycle costing | A method of comparing costs of equipment or buildings based on original costs plus all operating and maintenance costs over the useful life of the equipment. Future costs are discounted. (05 Dec 1998) |
| life cycle stages | The continuous sequence of changes undergone by metamorphosing insects and other animals during the developmental process. (12 Dec 1998) |
| lytic cycle | The general life cycle of a lytic virus, from infection of the host cell, hijacking of the host cells mechanisms, use of the host cells mechanisms to produce viral components, and assembly of the components into progeny viruses, to the destruction of the host cell by rupturing its plasma membrane (lysis) and the release of the progeny viruses so that they can spread and infect other cells. (09 Oct 1997) |
| T-cell-rich, B-cell lymphoma | <tumour> A B-cell lymphoma in which more than 90% of the cells are of T-cell origin, masking the large cells that form the neoplastic B-cell component. See: adult T-cell lymphoma. (05 Mar 2000) |
| adenovirus e1a proteins | Proteins transcribed from the e1a region of adenovirus which are involved in positive regulation of transcription of the early genes. (12 Dec 1998) |
| adenovirus e1b proteins | Proteins transcribed from the e1b region of adenovirus which are involved in regulation of the levels of early and late gene expression. (12 Dec 1998) |
| adenovirus e1 proteins | The very first viral gene products synthesised after cells are infected with adenovirus. The e1 region of the genome has been divided into two major transcriptional units, e1a and e1b, each expressing proteins of the same name (adenovirus e1a proteins and adenovirus e1b proteins). (12 Dec 1998) |
| adenovirus e2 proteins | Proteins transcribed from the e2 region of adenovirus. Several of these are required for viral DNA replication. (12 Dec 1998) |
| adenovirus e3 proteins | Proteins transcribed from the e3 region of adenovirus but not essential for viral replication. The e3 19k protein mediates adenovirus persistence by reducing the expression of class I major histocompatibility complex antigens on the surface of infected cells. (12 Dec 1998) |
| adenovirus e4 proteins | Proteins transcribed from the e4 region of adenovirus. The e4 19k protein transactivates transcription of the adenovirus e2f protein and complexes with it. (12 Dec 1998) |
| adenovirus early proteins | <molecular biology, protein, virology> Proteins encoded by adenoviruses that are synthesised prior to, and in the absence of, viral DNA replication. The proteins are involved in both positive and negative regulation of expression in viral and cellular genes, and also affect the stability of viral mRNA. Some are also involved in oncogenic transformation. (12 Dec 1998) |