… use of leeches as a method of bloodletting reached a peak during the eighteenth and early nineteenth centuries. At that time, leeches were used by apothecaries and surgeons, in addition to lancets, scarifiers and bleeding cups, in an attempt to…

… of archaeological information about a site, with many methods being available to the archaeologist engaged in extracting this data. Perhaps one of the most widely-known of these techniques, possibly because of its attractive nature, is pollen analysis…

… mental faculty of retaining and recalling past experiences. A repressed memory is one that is retained in the sub conscious mind, where one is not aware of it but where it can still affect conscious thoughts and behaviour. There are a lot of models that…

… most dramatic target for any new telescope. An alien landscape fills your eyepiece field with the same stark craters and mountains the Apollo astronauts skimmed over 25 years ago. Even a small telescope working at 100 power can show you the Moon as…

… had some early people envisioned the degree to which the microprocessor would change our lives. Surely, no one would have thought that in the early days of ENIAC that everything from your alarm clock to your car would be computerized. Even…

… by mutations in proto-oncogenes and tumor-repressor gene, the genes that control cell division. A mutation in proto-oncogenes increases cell division, while in the tumor-repressor gene inhibits cell division. A mutation in either of these can cause…

… in continually cycles each day to provide us with water. When water evaporates, the vapors from it rise and condense into the clouds. When the clouds make their way over to the land, the precipitation falls into the form of rain, snow, or ice. The…

… this nation, have been interested in a subject known as cloning. The word “clone” originally came from the Greek word klon, meaning, a branch or offshoot. In 1961, J.B. Gurdon cloned a tadpole by destroying the nuclei in an unfertilized cell and…

… of the new millennium poses many challenges for businesses, governments and other organizations that rely on information technology systems. Perhaps none is more serious than the need to ensure that computer systems around the world can cope…

… began my research on the topic of violent crime prevention. After reading about different crime programs, it became obvious to me that many of these programs conflicted in their deterrence philosophy. Many of the crime programs were based on a different…