Category: G

A classical organic-chemical process that forms carbon-carbon bonds. It is used to build carbon chains in compounds including drugs, food additives, toxins, and pesticides.  

In a radiographical grid, the ratio of the height of the lead strips to the distance of the interspace. High ratios indicate increased ability of the grid to remove scatter. The correlation between the height of the lead strips and the width of the radiolucent (non-opaque) material situated between them.  

A blue discoloration of the skin around the flanks or umbilicus in a patient with hemorrhagic pancreatitis.  

An electrically powered, hook-shaped prosthesis used to grip, grasp, or hold objects.  

Paronychia caused by infection of the nails with Pseudomonas aeruginosa.  

A color intermediate between blue and yellow, afforded by rays of wavelength between 492 and 575 nm.  

The appearance of vomiting, lack of sucking response, irregular and rapid respiration, abdominal distention, and cyanosis in newborn infants treated at birth with chloramphenicol. Flaccidity and an ashen-gray color are present within 24 hr. About 40% of the patients die, most frequently on the fifth day of life. Because of the risk of this rare…

Any information not commercially published and therefore difficult to retrieve with standard bibliographical techniques or electronic search engines. It includes information contained in reports of congressional committees or subcommittees, bulletins issued by private interest groups or government agencies (e.g., the Food and Drug Administration), summaries of conference proceedings, dissertations and theses, documentation of data closely…

A diterpene cyclic hydrocarbon found in honey produced by bees that feed on rhododendrons. Consumption of tainted honey or rhododendrons results in nausea, vomiting, and numbness and tingling around the mouth and in the arms and legs. Weakness, loss of coordination, and heart rhythm disturbances rarely occur, and only after massive ingestion. The poisoning typically…

The force and movement tending to draw every particle of matter together, especially the attraction of the earth for bodies at a distance from its center.