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Energies ◽  
2022 ◽  
Vol 15 (2) ◽  
pp. 429
Felipe Arraño-Vargas ◽  
Zhiwei Shen ◽  
Shan Jiang ◽  
John Fletcher ◽  
Georgios Konstantinou

Australia is one of the leading countries in energy transition, and its largest power system is intended to securely operate with up to 75% of variable renewable generation by 2025. High-inertia synchronous condensers, battery energy storage systems, and grid-forming converters are some of the technologies supporting this transformation while facilitating the secure operation of the grid. Synchronous condensers have enabled 2500 MW of solar and wind generation in the state of South Australia, reaching minimum operational demands of ≈100 MW. Grid-scale battery energy storage systems have demonstrated not only market benefits by cutting costs to consumers but also essential grid services during contingencies. Fast frequency response, synthetic inertia, and high fault currents are some of the grid-supporting capabilities provided by new developments that strengthen the grid while facilitating the integration of new renewable energy hubs. This manuscript provides a comprehensive overview, based on the Australian experience, of how power systems are overcoming expected challenges while continuing to integrate secure, low cost, and clean energy.

2021 ◽  
pp. 0310057X2110476
Ross A Farrar ◽  
Angelo B Justus ◽  
Vikram A Masurkar ◽  
Peter M Garrett

Phosphine poisoning is responsible for hundreds of thousands of deaths per year in countries where access to this pesticide is unrestricted. Metal phosphides release phosphine gas on contact with moisture, and ingestion of these tablets most often results in death despite intensive support. A 36-year-old woman presented to a regional hospital after ingesting multiple aluminium phosphide pesticide tablets and rapidly developed severe cardiogenic shock. In this case, serendipitous access to an untested Extracorporeal Membrane Oxygenation (ECMO) service of a regional hospital effected a successful rescue and prevented the predicted death. We discuss the toxicology, management and the evidence for and against using ECMO in this acute poisoning.

Charles F. Yates ◽  
Kate Riney ◽  
Stephen Malone ◽  
Ubaid Shah ◽  
Liam G. Coulthard ◽  

2021 ◽  
Vol 11 ◽  
Sol Qurashi ◽  
Supreet Bajwa ◽  
Sam Aktas ◽  
William Bestic ◽  
Jason Chinnappa

Introduction: In today’s post COVID 19 world, many healthcare systems have been pushed past the brink of economic sustainability. With Total Hip (THR) and Knee Replacements (TKR) being a few of the biggest ticket items, the need to adopt methods that improve quality of care & reduce unnecessary costs, is imperative. In this context, we report our experience with a Short Stay / Overnight joint replacement model using an ERAS (Enhanced Recovery After Surgery) Protocol which promotes rapid post-operative recovery and a decreased LOS without an increase in complications or readmission rates.   Method: Retrospective collection of clinical & demographic data was undertaken for 114 consecutive patients undergoing primary THR or TKR by a single surgeon between 1 January 2018 and 19 March 2020 at 2 hospitals (1 public, 1 private). The data was analyzed for LOS, complications & readmission rates within 90 days after surgery.   Results: In THR (n=93) and TKR (n=21), mean LOS was1.54 nights (range 0 - 4). 8 patients were discharged to a rehabilitation facility, the remaining 106 were discharged home. 2 patients were readmitted within 90 days of surgery - one with a periprosthetic fracture and the other for an unrelated respiratory illness.   Conclusion: The implementation of a Short Stay model and associated ERAS protocols in both the public and private hospital settings reduced LOS without a concomitant increase in postoperative complications or readmission rates.

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