These cells were used rather than square Pyrex tubing because of the tendency of the latter to shatter when thawing frozen carbon tetrachloride.

These antibody titers were determined by reaction with homozygous Af red cells.

These cells were thawed at 37-degrees-C for 30 min and were deglycerolized by alternately centrifuging and mixing with descending concentrations of glycerol solutions ( 20, 18, 10, 8, 4 and 2% ).

These protists live as individual amoebae until starved, at which point they aggregate and form a multicellular fruiting body in which some cells sacrifice themselves to promote the survival of other cells in the fruiting body.

These particles continue to decay, emitting alpha particles which can damage cells in the lung tissue.

These antigens can sometimes be presented by tumor cells and never by the normal ones.

These are released by lysis of the host cells and group together by syzygy.

These secrete enzymes that allow the parasite to enter other cells.

These molecules mark the cell for phagocytosis by cells possessing the appropriate receptors, such as macrophages.

These two inhibitory proteins are partially responsible for HeLa cells immortality by inhibiting apoptosis to occur.

These bacteria also secrete proteins that enable the AC-II to enter host cells, where the exogenous AC activity undermines normal cellular processes.

These oxidants can damage cells by starting chemical chain reactions such as lipid peroxidation, or by oxidizing DNA or proteins.

These neurons communicate with one another by means of long protoplasmic fibers called axons, which carry trains of signal pulses called action potentials to distant parts of the brain or body targeting specific recipient cells.

These same compounds also increase secretion of macrophage colony-stimulating factor by osteoblasts, which promotes the differentiation of progenitor cells into osteoclasts, and decrease secretion of osteoprotegerin.

These domains reflect whether the cells have nuclei or not, as well as differences in the chemical composition of the cell exteriors and ribosomes.

These tailor-made drugs promise not only to maximize therapeutic effects but also to decrease damage to nearby healthy cells.

These include the use of genetic information in reproductive decision-making and the possibility of genetically altering reproductive cells that may be passed on to future generations.

These are epithelial cells that are coated with bacteria.

These proteins are often concentrated in specialized cells and in cell corners.

These ideas include the proposal that cells contain zones of low and high-density water, which could have widespread effects on the structures and functions of the other parts of the cell.

These can take part in self-perpetuating circuits in the gene regulatory network, circuits that can involve several cells that communicate with each other.

These cells and the bacteria trapped inside them entered a symbiotic relationship, a close association between different types of organisms over an extended time.

These principles are motivated by neuroscience insights about learning at the level of nerve cells ( synaptic plasticity ) and the coupling between cortical systems for language and action in the human brain.

These effects are likely mediated in the inferior olive, specifically at low-threshold calcium channels ( LTCC ) which have been shown to modulate the rhythmic firing of cells in this area.

These errors were then collected and written on a blackboard, condensing similar ideas.

These booze customers had until then been buying their supplies from the Sheldon, Saltis-McErlane, and Druggan-Lake gangs, and now they were competing for trade with the Torrio-Capone saloons ; ;

These are then mixed by their sound engineers with the active co-operation of the musical staff and combined into the final two channels which are impressed on the record.

These keys are the working principles of physics, mathematics and astronomy, principles which are then extrapolated, or projected, to explain phenomena of which we have little or no direct knowledge.

These members would then unthaw the rest of the personnel.

These are then closed with valves and the air is forced into the lungs by contraction of the throat.

These measured positions are then compared with those calculated by the laws of celestial mechanics: an assembly of calculated positions is often referred to as an ephemeris, in which distances are commonly calculated in astronomical units.

These subunits would typically then again be divided into quarters, with each side being mile long, and being of a square mile in area, or 40 acres.

These pits were also used to steam foods by adding heated rocks or embers and then seaweed or corn husks ( or other coverings ) placed on top to steam fish and shellfish as well as vegetables ; potatoes would be added while still in-skin and corn while in-husk, this would later be referred to as a clambake by the colonists.

These rumors then made their way into popular culture.

These are then organized into reactive and non-reactive adhesives, which refers to if the adhesive chemically reacts to harden.

These spectra are then multiplied with a factor to match the intensity of the sample spectrum and subtracted pixel by pixel and spectrum by spectrum from the sample spectrum using a least-squares algorithm.

These 10 residues are then known as angiotensin I. Angiotensin converting enzyme ( ACE ) then removes a further two residues which converts angiotensin I into angiotensin II.

These persons are then made up, and in some cases altered to look like the target, with the body double then taking the place of the person in high risk situations.

These were due to an enormous amount of exceedingly fine dust blown to a great height by the volcano's explosion, and then globally diffused by the high atmospheric currents.

These archive files were then compressed with ARC or ZIP and forwarded to ( or polled by ) another nearby node or hub via a dialup Xmodem session.

These include games in in 1959 and 1966, East Africa ( then mostly Kenya, and held in Nairobi ), and an unofficial game against Ceylon ( future Sri Lanka ) in 1950.

These molecules recognize specific reactant molecules called substrates ; they then catalyze the reaction between them.

These coaches in turn have their own disciples who have utilized Walsh's West Coast system such as Houston Texans head coach Gary Kubiak first a quarterback coach with the 49ers, then offensive coordinator for Shanahan at the Denver Broncos.

These ancient breeds then migrated South ( founding the Tazi / Saluki branch ) and West ( founding the Stepnaya, Krimskaya and Hortaya branches ) to develop into breeds adapted to those regions.

These findings help explain the categories used in Holdridge ’ s bioclassification scheme, which were then later simplified in Whittaker ’ s.

These churches at first used and then revised the use of the Prayer Book, until they, like their parent, produced prayer books which took into account the developments in liturgical study and practice in the nineteenth and twentieth centuries, which come under the general heading of the Liturgical Movement.

These can trap enemies, who are defeated if the bubble is then burst by the player's spiny back.