Category: G

The separation of whole or fragmented molecules, such as nucleic acids, through an electrically charged gel. The smaller the molecule, the faster its migration through the gel.  

A chemical electrode whose cell potential remains fixed and against which an indicator electrode is compared. The most common reference electrode is the silver/silver chloride (Ag/AgCl) electrode.  

In chemistry, a chemical sensor that uses a glass membrane, as opposed to one that uses an organic or solid-state membrane as the sensing surface.  

An electrode in which a gas-permeable membrane separates the test solution from an aqueous electrode solution in contact with an ion-selective electrode. Gas permeation of the membrane changes the chemical equilibrium within the electrolyte, and the ion-sensitive electrode detects this change.  

Electricity generated by chemical action.  

The chronic accumulation of a viscous exudate in the middle ear, occurring principally in children who are 5 to 8 years old. It causes deafness, which can be treated by removal of the exudate. Glue ear refers to the build-up of fluid within the middle ear’s cavity, leading to a reduction in hearing ability. This…

Dyspepsia caused by faulty function of the stomach and intestines.  

Dyspepsia caused by faulty stomach function (e.g., delayed gastric emptying in patients with diabetes mellitus).  

A congenital endocrine disorder caused by failure of the ovaries to respond to pituitary hormone (gonadotropin) stimulation. Clinically there is amenorrhea, failure of sexual maturation, and usually short stature. About one third of these patients have webbing of the neck and may have cubitus valgus. Intelligence may be impaired. Gonadal dysgenesis refers to the abnormal…

In politics, sociology, and psychology, the study of the interactions of people who are members of a common class or community.