Medicines, by Dr. Enda O’Connell

In the ninth of our weekly series of articles, I have taken off my ReelLIFE SCIENCE hat and put on my Scientist hat.  Or labcoat, gloves and goggles, to be more precise…  As a Senior Technical Officer in NUI Galway, I support a range of research projects across the campus, from Cancer Biology and Stem Cell Research to Chemistry and Biomaterials.  In this article, I write about ‘Medicines’ and how researchers at NUI Galway are looking for new uses for old drugs.

The History of Medicines

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Chinese Emperor Shennong tasting plants to test their qualities on himself (image from Wikipedia)

The word ‘medicine’ originally comes from the Latin phrase ‘ars medicina’, which translates as the ‘art of healing’, while the Oxford English Dictionary defines medicine (n) as ‘a substance or preparation used in the treatment of illness; a drug’. The earliest medicines were plant extracts, animal parts and minerals, and their use in healing rituals overseen by medicine men and shamans, often involved much more art than science.  Continue reading “Medicines, by Dr. Enda O’Connell”

The Science of Exercise, by Dr. Nicole Burns

In the fifth of our weekly series of articles by NUI Galway researchers, Dr. Nicole Burns, Lecturer in the Discipline of Physiology, in the School of Medicine, writes about ‘The Science of Exercise’.

Ever notice how, when you walk up three flights of stairs your legs begin to ache and you are a little out of breath? If you put your hand to your chest you may also notice that your heart is beating a little faster than normal.

Were you going “too fast”?

If you slowed down would you still feel your heart beating faster than it was at rest?

If you sped up, would you breathe harder?

A subject seated on a cycle ergometer. A heart rate monitor is worn across the chest under the clothing to measure pulse at rest and during exercise. The facemask is connected to a computer which analyses the expired for percentage oxygen, carbon dioxide and total volume. A blood pressure cuff is worn on the right arm to measure changing blood pressure during exercise. (Photo credit Dr. Nicole Burns)
A subject seated on a cycle ergometer. A heart rate monitor is worn across the chest under the clothing to measure pulse at rest and during exercise. The facemask is connected to a computer which analyses the expired air for percentage oxygen, carbon dioxide and total volume. A blood pressure cuff is worn on the right arm to measure changing blood pressure during exercise. (Photo credit Dr. Nicole Burns)

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Physics in Real Life, by Dr. Rebekah D’Arcy

In the second in our series of articles by NUI Galway researchers, School of Physics Lecturer Dr. Rebekah D’Arcy, writes about the ever evolving world of Medical Physics.

Physics in Real Life – Medical Physics

Hippocrates (460-377 BC), who is known as the “Father of Western Medicine”, may have been the first medical physicist. Over two thousand years ago, in order to locate where an infection was located, he would smear mud over a patient’s back, knowing that infected tissue is warmer and would therefore dry the mud faster. Technology has improved a lot since then and modern thermography, which looks at heat coming from the body using an infrared camera, is very different from Hippocrates’ methods.

In fact modern medical physics uses techniques which sound like they come straight from a science fiction movie.

Computer model of the Siemens Oncor linear accelerator used in the treatment of cancer patients, generated by simulation on a supercomputer (Image credit: Dr. Mark Foley)
Computer model of the Siemens Oncor linear accelerator (and selection of electron and photon tracks) used in the treatment of cancer patients, generated by simulation on a supercomputer (Image credit: Dr. Mark Foley)

Continue reading “Physics in Real Life, by Dr. Rebekah D’Arcy”