The ARAN digital repository system captures, stores, indexes, preserves, and distributes digital research material. http://aran.library.nuigalway.ie/:80 2017-10-29T22:00:56Z 2017-10-29T22:00:56Z Morrissey, John http://hdl.handle.net/10379/6946 2017-10-28T01:01:14Z 2017-06-15T00:00:00Z

The Long War: CENTCOM, grand strategy, and global security Morrissey, John [No abstract available]

2017-06-15T00:00:00Z Morrissey, John http://hdl.handle.net/10379/6945 2017-10-27T14:57:11Z 2003-01-01T00:00:00Z

Negotiating colonialism: Gaelic reaction to English expansion in early modern Ireland, c.1541–1641 Morrissey, John [No abstract available]

2003-01-01T00:00:00Z Colgan, Niall Van der Putten, Wil Tuohy, Brendan http://hdl.handle.net/10379/6943 2017-10-28T01:01:09Z 2017-06-01T00:00:00Z

Experimental and numerical assessment of MRI-induced temperature change and SAR distributions in phantoms Colgan, Niall; Van der Putten, Wil; Tuohy, Brendan Eskola, H., Väisänen, O., Viik, J., Hyttinen, J. During an MR procedure, most of the transmitted RF power is transformed into heat within the patient’s tissue and implants as a result of resistive losses which is referred to as the specific energy absorption rate (SAR) (1). The European committee for electrotechnical standardisation (CENELEC) has mandated that all scanners must measure the specific absorption rate of radiofrequency in patients and develop system safeguards to ensure that the limits set out IEC 60602-3-33 are not exceeded. Accurate estimation of SAR is critical to safeguard in unconscious/sedated patients, patients with compromised thermoregulation, implant patients, pregnant patients and neonates who require an MRI procedure. The increased static field strength and RF duty cycle capabilities in modern MRI scanners means that systems can easily exceed safe SAR levels for patients (2). Advisory protocols routine used to establish QA protocols do not have advise on the testing of SAR levels in MRI and this is not routinely measured in annual medical physics QA. There is increasing need to verify the manufacturers SAR estimations.

2017-06-01T00:00:00Z Morrissey, John http://hdl.handle.net/10379/6942 2017-10-27T01:01:15Z 2014-01-01T00:00:00Z

Humanity’s legacies: historical geographies in the present Morrissey, John [No abstract available]

2014-01-01T00:00:00Z