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 illiterate boors conscripted from villages all across the Czarina's empire had, Suvorov may have told Lewis, just two things a commander could count on: physical fitness and personal courage.

These new poems have only a few direct references to jazz and jazz musicians, but they show changes in Patchen's approach to his poetry, for he has tried to enter into and understand the emotional attitude of the jazz musician.

These have never gone out of style in Scandinavian homes and now seem to be reappearing here and there in shops which specialize in handicrafts.

These gentlemen already have done the party harm by their seeming reluctance to vote aid for the depressed areas and by their criticism of Mr. Kennedy for talking about a recession and unemployment.

These proposals would reduce the amount of tax that DuPont stockholders might have to pay -- from an estimated 1.1 billion dollars under present law to as little as 192 million dollars.

These arrangements would have been impossible if the business community was truly interested in the welfare of its employes.

These forty-seven special purpose governments have the authority to levy taxes, to borrow money, own property, sue and be sued, and in general to exercise normal corporate powers.

These registries are sponsored by 18 national medical, dental, and veterinary societies and have as their mission the assembling of selected cases of interest to military medicine and of establishing through the mechanism of follow-up of living patients the natural history of various diseases of military-medical importance.

These thermometers have now been sent to the United Kingdom for calibration at the National Physical Laboratory.

These provisions are designed to reflect the differences in wealth and population among the States, with the objective that a vocationally handicapped person have access to needed services regardless of whether he resides in a State with a low or high per capita income or a sparsely or thickly populated State.

These could be costly and have a serious effect both at home and abroad.

These destructive forces also have a seriously adverse effect upon the watersheds and their life-supporting waterflows, and upon the other renewable forest resources.

These specialists, I learned, have done a great deal of work to improve the size and health of the plants and the resulting flowers.

These engines have a cylinder diameter of 3-7/8 inches and a stroke length of 3 inches.

`` These recent steps do not offer the possibility of extension to the great number of senior engineers who have displayed technical competence.

These have to do with property rights, municipal official attitudes and a host of others.

These vehicles, with large sensitive areas, have collected data for long enough times to give reliable impact rates for the periods of exposure.

These dosages could have been increased by increasing the source strength which was small in this case.

These have been labeled Regions 1, 2, and 4, respectively, in Fig. 1.

These drugs have no effect on the iodide concentrating mechanism, but they inhibit organification.

These groups have varied widely from mere families, primitive, totemic groups, and small modern cults and sects, to the memberships of great denominations, and great, widely dispersed world religions.

These things have been disseminated by other means, but always in the wake of extensive publication of analytic results.

These children have been described as those who were trying to say something to adults who did not understand.

These have an upper-middle-class leadership and a middle-class membership, with rare exceptions, where working-class parents are active in local P.-T.A. matters.

These must have been for local calls strictly, as in May 1900 the `` only long distance telephone '' in town was transferred from C. B. Carleton's to Young's shoe store.