Atrial tachycardia is a supraventricular tachycardia (SVT) that does not require the atrioventricular (AV) junction, accessory pathways, or ventricular tissue for its initiation and maintenance.
Page Content. Northern Natural Gas Company (Northern) is a subsidiary of Berkshire Hathaway Energy based in Omaha, Nebraska and has been in business since 1930. Northern owns and operates the largest interstate natural gas pipeline system in the United States.
Texas New Mexico Power. The Texas-New Mexico Power Company (TNMP) is a wholly owned subsidiary company of the PNM Resources, which is a leading service provider of electricity transmission and distribution services. Pnm Resources is one of the Energy holding corporations in the United States of New Mexico.