The monsoon, is widely thought of as the essential seasonal rains India needs for its agriculture that may bring cataclysmic flooding. However, this weather term has a more general meaning. Find out why monsoons form and how they affect certain parts of the world.
Marine sediments represent sinks for heavy metal contamination. Creatures such as marine bivalves (oysters and mussels) feed on sediments and so can become intoxicated with heavy metals. Plants may also redistribute metals from sediments which is why they are monitored in ecological risk studies.
The earth has a cyclic pattern to climate over geological time oscillating between ice ages and temperate periods. Glaciers are a remnant of the last ice age and are responsible for transforming terrain. Here we look at glaciation and explain what is moraine and how it tracks a glacier’s story.
A meander is the name given to the formation of the curves that typify the course of a natural waterway. How then are these curves or meanders created?
The most famous geographical features of Norway are its fjords and mountains. The fjords of Norway are saltwater inlets which can extend back from the open ocean as much as 125 miles. This brief article explains how the fjords were formed and why they are deeper than the near shore ocean.
The mountains attract many people year around, but winter sports draw thousands of people to the slopes. Avalanche natural disasters can happen when a slab of snow is unstable and breaks away down the mountainside. This article looks at the types and causes of avalanches.
An earthquake can be one of nature’s most cataclysmic events as the Haiti earthquake of January 2010 showed. In this article, we explore earthquake geology and explain where the destructive force associated with an earthquake comes from.
We live on an ocean planet where the seas cover almost 2/3 of the surface. Much of the pollution that we produce finds its way into the sea. This article looks at some of the types of ocean pollution which stem from man’s activities, but also arise from natural processes.
There is much talk of green or sustainable or renewable energy sources these days, but what is a sustainable energy source and how does it differ from traditional energy production source? This article explains what is meant by a sustainable energy source and looks at the controversy about them.
On average, winter storms will kill 41 Americans this year as a result of the extreme cold (exposure) and accidents caused by the weather (mainly car crashes).
In healthy people who have not sustained an internal injury, urine should not contain any red or white blood cells since these will be removed by the kidneys and there is no contact between the urinary and blood systems. The detection of leukocytes in urinalysis is indicative of an infection.
In America, 86 people will be struck by lightening and killed this year; many wildfires will be started by a lightning strike. Nobody can mistake a thunderstorm with its characteristic lightning flashes, heavy rain and peals of thunder; but just what are thunderstorms and how do they form?
To understand what is the impact of a tsunami on people and the environment, you first need to understand how tsunamis are caused and consider the size of the triggering event. A cubic metre of water weighs a tonne, so it is easy to imagine the destructive power of a 30 metre high wave…
Tropical storms can be among the most destructive weather events on the planet. This article explores just how do tropical storms start and reveals the staggering energy that they can contain.
Clinicians will order white blood cell counts to investigate if a patient has an infection and as a part of the monitoring of certain diseases and their treatments (for example during chemotherapy or radiotherapy). This article looks at the components of blood and the function of white blood cells.
The blood test for mercury toxicity will often be used to rule out poisoning with mercury as a cause of central nervous system symptoms such as tremor, loss of sensitivity to hot or cold things and impairment of balance when there is a realistic possibility of exposure to the heavy metal.
Almost half of American higher education students fail to turn in their research thesis and miss out on a post graduate degree. Planning a thesis properly and learning how to get the thoughts from your head and onto paper is just as critical as good research.
Lead can be measured in blood by atomic spectroscopy. This article provides an overview of the blood test for lead using the Delves Cup. Lead has no known biochemical role in man and is an established heavy metal poison which causes symptoms ranging from colic to lethargy and neurological problems.
Copper is essential for good health, but it must be maintained within certain levels. Too much or too little in the body can have serious consequences for an individual and may prove fatal. To learn more about the role of copper in the body and for an overview of the copper blood test read on.