Several different techniques exist to study cells are

Several steps in the metabolism of HDL can contribute to the transport of cholesterol from lipid-laden macrophages of atherosclerotic arteries, termed foam cells, to the liver for secretion into the bile.

Several distinct but linked metabolic pathways are used by cells to transfer the energy released by breakdown of fuel molecules into ATP and other small molecules used for energy ( e. g. GTP, NADPH, FADH ).

Several cancer viruses, including Epstein-Barr virus and Kaposi's sarcoma-associated herpesvirus, are maintained as latent, chromosomally-distinct episomes in cancer cells, where the viruses express oncogenes that promote cancer cell proliferation.

Several molecules that attach to special receptors called clathrin coated pits on the outside of cells cause the cell to perform endocytosis, an invagination of the plasma membrane to incorporate the molecule and associated structures into endosomes.

Several studies using cultured cells and laboratory rodents suggest the possibility of leukemogenic, genetic, reproductive, and neurological effects from chronic exposure.

Several groups of plants later developed pitted tracheid cells, it seems, through convergent evolution.

Several blood tests involve red blood cells, including the RBC count ( the number of red blood cells per volume of blood ), the hematocrit ( percentage of blood volume occupied by red blood cells ), and the erythrocyte sedimentation rate.

Several solar cells were mounted on the outside of the cylinder, and these provided electric power to the storage batteries inside the space probe.

Several types of cells support an action potential, such as plant cells, muscle cells, and the specialized cells of the heart ( in which occurs the cardiac action potential ).

Several studies in small and large animals models have shown that transplantation of islet cells across species is possible.

Several lines of evidence suggest that mast cells may have a fairly fundamental role in innate immunity – they are capable of elaborating a vast array of important cytokines and other inflammatory mediators such as TNFa, they express multiple " pattern recognition receptors " thought to be involved in recognizing broad classes of pathogens, and mice without mast cells seem to be much more susceptible to a variety of infections.

Several research groups are investigating cancer stem cells and their potential to cause tumors.

Several websites are maintained by individual cells, including Crimethinc. com, operated by the Far East Cell, which hosts propaganda, excerpts from available publications, and a blog of the activities of other cells.

Several red blood cells have ring stages inside them.

Several of the proteins that anchor to GPI on the cell membrane are used to protect the cell from destruction by the complement system, and, without these anchors, the cells are more easily targeted by the complement proteins.

* Ruin lizards: Several studies have been conducted on the genes expressed in circadian oscillating cells of the SCN during various light and dark conditions, as well as effects from inducing mild hypothermia in reptiles.

Several technological innovations helped to overcome this 400-year pattern.

Several recent accidents have helped make Indonesia's air transport system one of the least safe in the world.

Several large hotel projects like the Port Charles Marina project in Speightstown helped the tourism industry continue to expand in 1996 – 99, and more recently the new Hilton Hotel on Needhams Point, Saint Michael in 2005.

Several factors may have helped influence the look that has become known as " traditional square dance attire ".

Several more short tours followed, and Smith helped her record one of his songs " I Figured You Out ", which he once called " a stupid pop song in about a minute " that he discarded for sounding " like the fucking Eagles.

Several professors helped Covenant move to St. Louis, Missouri where it grew for eight years and in 1964 the institution outgrew its facilities and moved to Lookout Mountain.

Several different producers, including Richie Zito, Matthew McCauley, and Richard James Burgess, helped create an electronic popular style, that was very common during the 1980s, but drastically different from America's usual style.

Several of the children and staff were also ill, and Zita ( at the time eight months pregnant ) helped nurse them all.

Several accessories including pinstriping and luggage racks helped provide further individuality.

Several American Jewish organizations helped them obtain visas and aided their resettlement in the United States and other countries.

Several long, thin bones identified on the blocks as ossified tendons ( structures that helped stiffen the tail of Deinonychus ) turned out to actually represent gastralia ( abdominal ribs ).

Several Muslim generals, such as Ma Zhan ' ao, Ma Anliang, Ma Qianling, Dong Fuxiang, and Ma Haiyan from Hezhou, who had defected to General Zuo's army, helped him crush the " Muslim rebels ".

Several years later, he helped build the new Victory-class destroyer vessels.

Several years later, when Chisholm worked on a bill to give domestic workers the right to a minimum wage, Wallace helped gain votes of enough Southern congressmen to push the legislation through the House.

Several important dentists helped to advance dental braces with specific instruments and tools that allowed braces to be improved.

Several other organizations in both Europe and North America helped develop experimental film.

Several manga-style American artists led by Art Director: Thomas Cook include Matt Holmberg, Rich Werner ( Main character designer for Kybar's Teeth, Weave, Paradwyn, Bograth, Nar and The Sands of Dresh ), Tim Gillette, Chana Goodman, and Ryan Shreve helped to expand the universe of art based on the original creations of Matt Holmberg.

Several additional recurring characters appear in Pirates fiction, including Blackheart, a pirate similar to the historical Blackbeard ; the Crimson Angel, another mysterious female pirate ; and even non-pirates such as Charles Southwyn, a weaponmaster who helped create several ships in the Pirates of the Spanish Main release.

Several early Cleveland miscues helped the Broncos jump to an early 14-0 lead.

Several of the Commission members, including Daniel Burnham and Frederick Law Olmsted, Jr. had in fact participated in the 1893 World Columbian Exposition, which was widely popular and helped to spread interest in the City Beautiful movement.

Several faces came out to help and then Jimmy ran out and helped take him to the back.

Several experiments have documented an interesting, unexpected example of social influence, whereby the mere knowledge that others were present reduced the likelihood that people helped.

Several churches located along the avenue, such as Big Bethel AME and First Congregational, helped build and maintain the heritage of the street.

Several years after ECW folded, Sabu and Rob Van Dam reunited at World Wrestling Entertainment ( WWE ) produced ECW One Night Stand in 2005, when Van Dam helped Sabu defeat another former ECW wrestler, Rhyno.