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Stories by S.E. Gould

How bacteria get inside your house

Given that they occupy every other niche on earth, including deep sea vents, salt flats and the interior of human bodies, it should come as no surprise that bacteria are also found in human houses...

July 13, 2013 — S.E. Gould

Clever microbes: bacterial sensors and signals

If anyone is around in London over the weekend, there's an awesome looking summer science exhibition at the Royal Society focusing on bacterial signal transduction: how bacteria work together to sense and respond to their environment...

June 30, 2013 — S.E. Gould

How to eat your host: Pathways for nutrition in Salmonella

From the point of view of an intracellular bacteria, the human body really is no more than just a habitat in which they must grow and thrive. While this particular habitat might have stable internal conditions, and less competition than the big open world, it has its disadvantages in continuous attacks from the immune system, and the lack of usable nutrients...

May 6, 2013 — S.E. Gould

Lab Rat has a baby on board!

It has been a while since I've last posted. Usually I try not to give excuses for lateness, but this time I do have a very good one.I'm currently 15 and a half weeks pregnant!In the UK there is a fairly good and well thought-out system to make sure pregnant women get all the necessary checks and scans...

April 20, 2013 — S.E. Gould

The Carnival of Evolution: World Travel Edition!

Welcome to the 56th edition of the Carnival of Evolution.I haven't been on holiday for a while, so for this issue I thought I'd take a trip around the world, looking in on all the exciting research and work being done in the field of evolution...

February 1, 2013 — S.E. Gould

Toxic Little Molecules

There are various different ways that pathogenic bacteria can damage and kill human cells, but one of the most common is by the production of toxic molecules.

January 13, 2013 — S.E. Gould

What makes things acid: The pH scale

I remember learning about acids and bases (or acids and alkalis) fairly early on at school. Acids were sharp vinegary substances like lemon juice, while alkalis were soapy substances, like limewater or caustic soda...

December 3, 2012 — S.E. Gould

How the animals lost their sensors

For free-living organisms, the ability to sense and respond to the outside environment is crucial for survival. Eukaryotes, such as animals and plants, often have highly complex network systems in place to monitor their surroundings and respond effectively, but bacteria have developed a remarkably simple system...

November 25, 2012 — S.E. Gould

How to milk a pigeon

Milk is produced by mammals in order to provide nutrition to their growing young. It's pretty special stuff, as not only does it provide all the nutrients and energy needed to fuel a growing baby (consider that for at least six months a human infant drinks nothing but milk) it also aids in the development of both the immune system and the baby's microbiotica - the bacteria that develop in its gut and stomach.Although milk is exclusively a mammalian production, some birds, such as pigeons, penguins and flamingos, produce a milk-like substance which provides similar benefits to their young...

November 4, 2012 — S.E. Gould

The changing microflora of bacteria in the lungs

Any part of the human body that is open to the outside world it available for the colonisation of bacteria. While this blog has covered bacteria in the gut, the vagina and the throat, one area I've neglected to cover is the bacteria that get into the lungs...

October 28, 2012 — S.E. Gould

Bacteria that work together to cause infection

I'm on holiday at the moment, so this post is adapted from the archives. It was originally posted at my old blog over on Field of Science. There are lots of things I enjoy about studying bacteria...

October 21, 2012 — S.E. Gould

Fighting bacteria with copper

Along with the main elements of carbon, oxygen, nitrogen, magnesium and sulphur, organic organisms also require trace amounts of certain other elements, including some metals.

October 14, 2012 — S.E. Gould
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