When they reached their neighbor's house, Pamela said a few polite words to Grace and kissed Melissa lightly on the forehead, the impulse prompted by a stray thought -- of the type to which she was frequently subject these days -- that they might never see one another again.

When she would do these things, he would turn blind for an instant and become sick at his stomach.

When these had been pocketed, we could still spend a morning cracking open other pebbles for our delight in seeing how much prettier they were inside than their dull exteriors indicated.

When these fields are surveyed together, important patterns of relationship emerge indicating a vast community of reciprocal influence, a continuity of thought and expression including many traditions, primarily literary, religious, and philosophical, but frequently including contact with the fine arts and even, to some extent, with science.

When these chores were finished, only then, was she allowed whatever freedom she could find.

When the recent Katangan outbreaks imperiled these solutions Mr. Hammarskjold, despite the danger, flew to exert a calming influence.

When they got home Harold was grateful for the stillness in the apartment, and thought how, under different circumstances, they might have stayed on here, in these old-fashioned, high-ceilinged rooms that reminded him of the Irelands' apartment in the East Eighties.

When these groups were first formed many prominent and accomplished decorators could not have had the advantage of school training since interior design courses were rare and undeveloped during their youth.

When now we count the frequency of the 71 items in the two language families appearing in the same column or grade, or one column or grade apart, or two or three or four, we find these differences: Af

When Mayor Dever heard of the banquet he summoned Hughes for an explanation of why he had been dishonouring the police department by consorting with these felons and fixers.

When Felix first opened the door on it, all these shades were tightly drawn and the whole studio was as dark as night.

When, therefore, it turned its attention to the concrete entities with which popular imagination had peopled the world of spirit, these entities soon lost whatever status they had enjoyed as actual elements of external reality.

When dam construction began in 1933, fewer than 600 boats used these waters ; ;

When these do not work, he tries to avoid responsibility, saying he will ask the government for orders.

When heated to form a solution and then cooled quickly, these alloys become much softer than normal, during the diffusionless transformation, and then harden as they age.

When Ewen rejected these attempts, Alexander sailed forth to compel him, but on the way he suffered a fever at the Isle of Kerrera in the Inner Hebrides.

" When we run over libraries, persuaded of these principles, what havoc must we make?

When blacks began singing adapted versions of these hymns, they were called Negro spirituals.

When James Bradley and Samuel Molyneux entered this sphere of astronomical research in 1725, there consequently prevailed much uncertainty whether stellar parallaxes had been observed or not ; and it was with the intention of definitely answering this question that these astronomers erected a large telescope at the house of the latter at Kew.

When calcium is leached from the needles of red spruce, these trees become less cold tolerant and exhibit winter injury and even death.

When the end came, these troops simply shifted their allegiances to the new barbarian rulers.

When the pH of this solution rises, as a result of dilution by fresh water, these ions precipitate, forming " Yellow Boy " pollution.

When the United States renounced its offensive biological warfare program in 1969 and 1970, the vast majority of its biological arsenal was composed of these plant diseases.

When bacterial populations have these resistant subgroups, treatment with β-lactam can result in the resistant strain becoming more prevalent and so more virulent.

When typical reaction cells to which 0.3 of an atmosphere of oxygen had been added were illuminated, chlorine and phosgene were produced.

When an APAF-1 gene trap is introduced into cells, many morphological changes occur, such as spina bifida, the persistence of interdigital webs, and open brain.

When HeLA cells are infected with OROV, the cytochrome C is released from the membrane of the mitochondria, into the cytosol of the cells.

When observers or cells are not authorised they can still request fire.

Neurons generate electrical signals that travel along their axon s. When a pulse of electricity reaches a junction called a synapse, it causes a neurotransmitter chemical to be released, which binds to receptors on other cells and thereby alters their electrical activity.

When this gene was inserted into tomato and tobacco cells ( see RNA interference ), the cells were able to withstand environmental stresses like salt, drought, cold and heat, far more than ordinary cells.

When working with weeks rather than months, a continuous format is sometimes more convenient, where no blank cells are inserted to ensure that the first day of a new month begins on a fresh row.

When brain tissue from a CJD patient is examined under a microscope, many tiny holes can be seen where whole areas of nerve cells have died.

When monosaccharides are not immediately needed by many cells they are often converted to more space-efficient forms, often polysaccharides.

When cells enter mitosis, the sister chromatids ( which represent the two copies of each chromosomal DNA molecule resulting from DNA replication earlier in the cell cycle and packaged by histones and other proteins into chromatin ) are linked all along their length by the action of the cohesin complex.

When the body is expending more energy than it is consuming ( e. g. when exercising ), the body's cells rely on internally stored energy sources, such as complex carbohydrates and fats, for energy.

When the rains return and soils become wet, the osmotic gradient between the bacterial cells and the soil water causes the cells to gain water quickly.

: When an amoeba divides, the two daughter cells stay attached by a tubular tether which remains intact unless mechanically severed.

* When scanning the fluorescent intensity across a plane one has fluorescence microscopy of tissues, cells, or subcellular structures, which is accomplished by labeling an antibody with a fluorophore and allowing the antibody to find its target antigen within the sample.

When red cells reach the end of their life due to aging or defects, they are broken down in spleen, the hemoglobin molecule is broken up and the iron gets recycled.

When insulin is deficient or cells become resistant to it, diabetes occurs.

When bone marrow develops, it eventually assumes the task of forming most of the blood cells for the entire organism.

When, via random mutation across the population, the photosensitive cells happened to have developed on a small depression, it endowed the organism with a better sense of the light's source.

When Iceman was injected with Sinister's neuro-inhibiter by Mystique, he was able to save himself by drawing in all of the ambient moisture around him, rapidly replacing his poisoned cells with healthy material before the injection could kill him.

When the dendritic cells are chronically exposed to morphine during their differentiation process then treated with LPS, the production of cytokines is different.