microwaves, computers and cellphones are all common examples of e-waste. This is one of the major drawbacks of technology. Canada It is a must to make sure that certain substances in computers are recycled properly as they are very toxic; mercury, barium and cadmium. About 150,000 tonnes of E-Waste accumulates in Canadian landfills Half of the E - Waste generated in Canada and United States each ear, ends up in non-regulated, backyard recycling operating in other countries like China and India…
Carbonyl compounds undergo various types of reaction. In these reaction the carbonyl carbon or carbonyl oxygen is prone to attack generally by a nucleophile. Different types of carbonyl compounds undergo different types of reactions and the mechanisms of them are also different. The products or by-products or intermediate products of these reactions are very much useful in laboratory synthesis, industry etc. here we will discuss some very much important reactions which are very important for…
colonography; this test takes multiple CT images to created a picture of your colon (Mayo Clinic, 2013). Doctors look at the CT image for abnormal lumps and polyps that could lead to cancer. Other diagnostic test for Colon Cancer include Double-contrast barium enema, Flexible sigmoidoscopy, Guaiac-based fecal occult blood test, Fecal immunochemical test, and a Stool DNA test (American Cancer…
“Waste: damaged, defective, or superfluous material produced by a manufacturing process…” (Merriam-Webster, Waste). Using this above definition, it is possible to break into the sub-branch known as electronic waste or E-waste. Due to the current large consumerism culture, many first world countries find themselves producing an unstable amount of E-waste from the constant “upgrading” or destruction of older electronics. Further in this paper, examples of how this waste is dealt with shall be…
In recent years, there has been an increasing concern about whether or not should factories keep using fracking as their main method to extract oil and gas from the underground. Fracking, or hydraulic fracturing can be defined as the process of drilling down into the Earth and injecting high-pressurized water mixture into the ground, creating cracks in the deep-rock formations and allows oil and gas to flow out of the wells. According to The United States Geological Survey, wastewater disposal…
Part One: Conductive behaviour of graphene/carbon nanotube and graphene oxide/ carbon nanotube hybrid materials Experimental Introduction Although many CNTs and graphene based electrodes have been developed with outstanding properties, drawbacks are still noticeable using some methods. For instance, EPD method commonly produces unsatisfied CNTs film strength and on the other hand, CVD technique is costly. Moreover, graphene based electrodes needs lots of labour works which is time consuming…
When scientists entered the Galapagos Rift they found a variation in temperature that changed drastically. The data collected by researchers revealed temperatures fluctuating between 320F to 7500F, within a relatively short distance (NOAA). Not only high temperatures were registered, but a complete ecosystem was surrounded by a unique marine life capable of surviving the extreme conditions. Since then, not just the ocean floor has been part of the scientist 's investigation; but the marine…
During an era when women were not known to attend college, let alone, play a major influential role in science, Marie Curie did just that. Born Marie Sklodowska in 1867 in Warsaw, Poland, Marie is best known for discovering the elements radium and polonium, and her study of radioactivity, which led to advances in the treatment of cancer and the development of nuclear power; both of which are still used today. Her work on radioactivity led to her being the first woman to win a Nobel Prize and…
INTRODUCTION Energy sources are a vast number but not all of them are renewable and those that are non-renewable are not going to cater for the next generations if we do not change to live conservatively and sustainable . The non-renewable energy sources not only are damaging our environment, they are also depleting . This means that the future generations will not get the benefits we are getting today from our environment if we are not starting to change our values and attitudes towards the use…
Glenda Hoffman BIO-1000-02-15-FA The Environmental Impact of September 11 Ecotoxicology is the study of impacts of pollutants on the structure and function of ecosystems, including their effect on the environment. The aftereffects of 9/11 is one of the most perfect examples of ecotoxicology. This had become, within moments, one of the most dangerous atmospheric conditions ever to occur on American soil. The first written evaluation of the environmental consequences of the attacks were…