Related Experiment Video
Updated: Jan 22, 2026

Minimally Invasive Endoscopic Intracerebral Hemorrhage Evacuation
Published on: October 15, 2021
Aeromedical evacuation in the humanitarian and disaster relief environment of Op RUMAN
1Department of Critical Care, Frimley Park Hospital NHS Foundation Trust, Frimley, UK george.evetts@nhs.net.
Abstract:
The 700+ Caribbean islands present a vast area of operations (AO) with challenges providing healthcare to the local population and deployed personnel. Predisaster host nation medical care relied on casevac for basic primary and secondary healthcare, with medivac by air for advanced medical treatment. Disruption to facilities and transport links by Hurricane Irma rendered the native healthcare system on its knees. During Op RUMAN, the Royal Air Force Medical Services (RAFMS) provided expertise in prehospital emergency care and critical care aeromed to enable emergency treatment and access to definitive care for local nationals and our own personnel. The ability to provide independent, safe aeromedical care across a variety of aviation platforms is unique to the RAFMS. The AO did not fit any current doctrine; an adaptable, functional unit concept was adopted to enable care to the walking wounded through to critical care along prolonged timelines.
Related Concept Videos
Cascaded Op Amps
In a cascaded system, each op-amp is referred to as a stage. The output of one stage drives the input of the subsequent stage. As the input signal passes through...
Second-order Op Amp Circuits
The analysis of such circuits follows a systematic approach, similar to the second-order RLC circuits. In practical scenarios, bulky inductors are rarely employed due to their size and weight. This means...
Characteristics of Practical Op Amps
The ratio of differential gain to the common-mode gain is defined as the common-mode rejection ratio (CMRR). This ratio quantifies the ability of operational amplifiers (op-amps) to reject common-mode...
Op Amp AC Circuits
Applications of GIS: Disaster Management and Emergency Response
Frequency Response of Op Amp Circuits
Frequency Response and Gain:
The gain of the op-amp, A(ω), is not a constant but a function of the input signal frequency. An op-amp can maintain a constant gain at low frequencies, known...

