The transmission of data from one computer to another, or from one device to another. A communications device, therefore, is any machine that assists data transmission.
In dogs, thyroid disease is almost always hypothyroidism. Hyperthyroidism (overactive thyroid) occurs in cats but is not typically seen in dogs. Unfortunately, an overactive thyroid in a dog is usually a sign of thyroid carcinoma, a cancerous thyroid tumor.
Owners of affected dogs may notice one or more of the following signs in the early course of the disease: 1  Acute onset of respiratory symptoms. 2  Difficulty breathing (dyspnea) 3  Shortness of breath.  Rapid, shallow breathing 1  (tachypnea) Cough (initially mild; may be dry and hacking or moist and productive)  Loss of appetite (anorexia; inappetence)