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 assumptions lead to an organization with one man at the top, six directly under him, six under each of these, and so on until there are six levels of personnel.

These proposals would go far toward creating the economic atmosphere favoring growth of the individual, who, in turn, would help us to cope with runaway technology.

These new pictures focussed on the familiar and commonplace objects that he had heard the men in his prison camp talking about as the things they missed most, hence associated with the sense of lost freedom: the cafe at the corner, the newspaper kiosk, the girls in doorways and windows along the street, the golden-crusted French bread they lacked, the cigarettes denied them.

These are, if the research is done with subtlety and skill, researchable topics, but the research is missing.

These moments are historical events in the lives of individual authors with which the student of comparative literature must be frequently concerned.

These lives are in themselves outside of the moral order and are unburdened with moral responsibility.

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 expenditures are estimated to be $12.1 billion, an increase of $187 million over 1960, reflecting additional longevity pay of career personnel, more dependents, an increased number of men drawing proficiency pay, and social security tax increases ( effective for the full year in 1961 compared with only 6 months in 1960 ).

These engines can be removed from a boat with relative ease, wherein lies their greatest advantage.

These are made on special order only, in Kodiak grade ( about $310 ), with integral muzzle brakes and heavy rubber recoil pads ; ;

These headquarters engineers, headed by the vice-president -- Engineering, counsel and advise divisional managers and chief engineers on product problems as well as aid with design ; ;

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

These boys acknowledged an introduction to anybody by gently pressing one of his hands in both of theirs, while they gazed, misty-eyed with care, into the eyes of the person they were meeting.

These contour diagrams also suggest a rather rapid falloff in the radio brightness with latitude.

These are reasonable assumptions with low viscosity fluids suspended in high viscosity fluids which are subjected to low rates of shear.

These estimates indicated that the quantum yield for the exchange of chlorine with liquid carbon tetrachloride at 65-degrees is of the order of magnitude of unity.

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

These conjugates Af had much less nonspecific staining than the previous conjugate ( with 50 mg FITC per gram of globulin ) while the specific staining was similar in both cases.

These are real analytic periodic functions with period T.

These were often carefully written out with a great deal of thought behind them.

These attempts met with little sucess for a variety of reasons.

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.