Electro-culture.
The application of electricity to the cultivation of plants. In one
system wires are stretched or carried across the bed under the surface,
and some are connected to one pole and others to the other pole of a
galvanic battery of two or more elements. In some experiments improved
results have thus been obtained.
Another branch refers to the action of the electric arc light on
vegetation. This has an effect on vegetation varying in results.
Electrode.
(a) The terminal of an open electric circuit.
(b) The terminals of the metallic or solid conductors of an electric
circuit, immersed in an electrolytic solution.
(c) The terminals between which a voltaic arc is formed, always in
practice made of carbon, are termed electrodes.
(d) In electro-therapeutics many different electrodes are used whose
names are generally descriptive of their shape, character, or uses to
which they are to be applied. Such are aural electrodes for the ears,
and many others.
(e) The plates of a voltaic battery.
Electrode, Indifferent.
A term in electro-therapeutics. An electrode to which no therapeutic
action is attributed but which merely provides a second contact with the
body to complete the circuit through the same. The other electrode is
termed the therapeutic electrode.
Electrodes, Erb's Standards of.
Proposed standard sizes for medical electrodes as follows:
Name. Diameter.
Fine Electrode, 1/2 centimeter .2 inch
Small " 2 " .8 "
Medium " 7.5 " 3.0 "
Large " 6X2 " 2.4 X .8 "
Very large " 16x8 " 6.4 x 3.2 "
Electrodes, Non-polarizable.
In electro-therapeutics electrodes whose contact surface is virtually
porous clay saturated with zinc chloride solution. The series terminate
in amalgamated zinc ends, enclosed each in a glass tube, and closed with
clay. Contact of metal with the tissues is thus avoided.
Electrode, Therapeutic.
A term in electro-therapeutics. An electrode applied to the body for the
purpose of inducing therapeutic action, or for giving the basis for an
electric diagnosis of the case. The other electrode is applied to
complete the circuit only; it is termed the indifferent electrode.
Electro-diagnosis.
The study of the condition of a patient by the reactions which occur at
the terminals or kathode and anode of an electric circuit applied to the
person. The reactions are divided into kathodic and anodic reactions.