Isotope

Teotihuacan was the dominant civilisation of Mesoamerica in the 5th century. The origin, history and culture of Teotihuacan have been vast and abstruse areas of research, which rely decisively on masses of evidence found at the site of pyramids, temples and neighbourhoods in a sub-valley inside the Valley of Mexico. Since the earliest excavations of Carlos de Sigüenza y Góngora in the 17th century, the nature of Teotihuacanos society has been a persisting mystery however, through the utilisation…

agreements between the United States and Russia, the spread of these weapons of mass destruction has increased. However, after World War II, nuclear energy found many beneficial uses. The first nuclear power plant began operating in 1957. Radioactive isotopes became extremely useful in the diagnosis and treatment of many medical conditions. The Manhattan Project changed the course of history and change war forever, with countries now having nuclear weapons, human annihilation is possible in…

Introduction: LC-MS is used for the bioanalysis of small molecules drugs, which has molecular mass of less than 800 Da. Now a days, it is also frequently used for the bioanalytical determination of biopharmaceuticals.1 In pharmaceutical R & D, it takes a year to develop a new marketing drug identified from thousands of new compounds. The drug discovery is divided into early and late phase, during which pharmacokinetics study or bioanalysis of a drug is done. Once, the bioanalysis of a drug is…

Athletes and Performance- Enhancing Drugs Performance- enhancing drugs are pharmaceutical products or illegal drugs that are used by sports people to gain a competitive advantage over those who do not use them. Performance enhancing drugs commonly used include anabolic androgenic steroids, testosterone, human growth hormone, erythropoietin and other androgens (Grace & Baker, 2012). These drugs for example anabolic androgenic steroids imitate the activity of natural testosterone and lead to fast…

In terms of the economy, the amount of defense spending of the United States’ during the Cold War Era was significantly smaller compared to the spending during World War I and II, with the second World War being the largest of the three. With that being stated, at the end of World War II, defense spending sharply decreased, but increased again in 1947, being the marked beginning of the Cold War, and proceeded to fluctuate, notably in the early 1950s signifying the Korean War and from 1955-1975…

A forensic Anthropology studies dead bodies and determines who the person is and they determines the cause of the person death. When someone dies they call a forensic Anthropology to finger out why this is person dead. When skeletonized remains are discovered, the first step to determine whether the bones is human remains. If so, the sex, race, age, stature, of the skeleton in order to established the identification of the remains, determine manner and cause of death and, if homicide, forensics…

Fertilizer has been around thousands of years and is needed in most places to grow crops. In these thousands of years, people have developed many types of fertilizer, including; Organic, High Tech, and Granular. Although in recent years people have used a large amount that is causing environmental problems. Even though fertilizer can cause diseases and ruin soil, it is necessary to grow enough food for the world because without it not enough food would be produced. According to American…

As fossil fuels continue to be consumed at an alarmingly fast rate, many countries are looking for a better source for energy needs. Some countries are turning towards wind power, solar power, and water power, but these sources are not producing the needed amount of energy to sustain large populations. A more proficient energy source that several countries have started investing in is nuclear power. Nuclear power is not a brand-new source of energy, it has been around for over 50 years and…

Photosynthetic Productivity in C3 and C4 Plants: Sunflower versus Sorghum Carmen Tran University of California, Fullerton December 10, 2016 Abstract The purpose of this experiment was to conclude whether C3 or C4 plants had better photosynthetic productivity. The two plants that were used were a C3 plant, a sunflower, and a C4 plant, a sorghum. The prediction for this experiment was that the sorghum would have a greater photosynthetic rate. To perform the experiment, a Qubit system was…

Trevor Allen Professor Kuznetsoff English 145 9 December 2015 Shark attacks and Global Warming “Shark attacks occupy people’s minds like no other animal related phenomenon” (site). Recently, shark attacks on humans have seemingly exploded onto the scene, with headline after headline capturing the world’s attention with the unsettling news. The recent increase in shark attacks has quickly become a worldwide topic of concern, with scientists consistently asking the looming question of: why has…