Toxicology Essays

Name: Chan Hiu Ching Student ID: 4020618 Plastic Paradise: The Great Pacific Garbage Patch is a documentary directed by Angela Sun in 2014. This spectacular documentary is about the devastating drawbacks of plastic production and offers a glimpse of garbage island in the North Pacific. Near the beginning of the documentary, the director interviews some citizens at a beach and finds out they do not realize the extent of the problem. In order to investigate the problem

Poison or toxin was first discovered during ancient times by tribes and civilizations as a way to quicken the death of their prey. As time passed, these methods became more advanced. Weaponry was designed specifically for poison enhancement. In times like the Romans, poisons were used as assassination techniques. These facts have been proved through archaeological findings. Grooves for storing or holding poisons such as tubocurarine have been plainly found in their hunting weapons and tools, showing

In the film, The Poisoner's Handbook, director Rob Rapley tells a tale of several poisoning cases that happened during the 1920s. Throughout this documentary, Rapley analyzes two well-known men who have an impact on the field of forensic science; toxicologist, Alexander Gettler and medical examiner, Charles Norris. Both, Alexander Gettler and Charles Norris went to great lengths in their profession to make a difference in criminal investigations and forensics. In addition to Gettler and Norris,

Today, areas in many regions of the world face serious problems caused by the contamina- tion of the environment with heavy metals, frequently caused by industrial activities and sewage sludge application [10]. One of these metals is chromium. It exists in different oxidation states in the environment, with trivalent and hexavalent chromium being the most stable and abundant forms in soils [10]. Because of its widespread use combined with a high human toxicity, Cr(VI) is considered as a major pollutant

Lead exposure takes place as soon as lead dust or fumes are breathe in, or once lead is ingested. Lead entering the respiratory and digestive systems is released to the blood and dispersed throughout the body. Additionally, more than 90% of the entire body encumbrance of lead is accumulated in the bones, where it is stored. Lead in bones may be released into the blood, re-exposing organ systems long after the original exposure. The toxic nature of lead is well documented. Lead affects all organs

The toxic effects of lead vary greatly, manifesting as the potential fatal encephalopathy of acute lead poisoning or as subtle changes in neurocognitive function in low level exposure. As exposure progresses, symptoms may manifest differently [30]. Brain damage is common in high exposure (blood levels above 100-120 μg/dL for adults and 80 -100μg/dL in children, causing encephalopathy and can also be fetal or permanently disabling resulting in dementia [31,32] Chronic exposure to high lead concentration

Franz Kafka, a novelist, once stated that, "A book is an ax for the frozen sea within." The quote compares the human condition to that of a frozen sea, and literature as the axe that breaks through and unlocks it. Literature is something that should cause individuals to learn more about themselves through books that express strong messages about humanity. Powerful messages that the reader recognizes are messages that invoke thinking from the reader, otherwise it would be impact less. This is why

Lead poisoning occurs when lead is ingested into the body. You cannot smell or taste lead nor is it visible to the naked eye. Lead is a metal that can harm children and adults when it gets into their bodies. Lead can be found in dust, air, water, soil, and in some products used in and around our homes. The build up of lead over a period of months or years causes fatal lead poisoning. While treatment is available for lead poisoning, taking precautions can help protect yourself and your family. As

Lead Poisoning The way lead poisoning had widely spread is due to the lack of care that a lot of companies have stopped watching for in their lead based paints and how it is affecting kids. The reason why this poses such an issue is because there are a lot of different toy products that have lead based paint. As documented in several different sources there are many people that are complaining to these companies, such as the Mattel Toy Company that is getting sued for many of their products because

over are, Finger print DNA and Forensic toxicology. These two are very similar, but made substantial differences in the evidence in his case. John Wayne Gacy was a murderer from Chicago, Illinois. convicted of the rape and murder of thirty-three boys and young men. he's additionally called the Killer Clown, thanks to his enjoyment of fun youngsters in a clown outfit. In Gregorian calendar month 1978, a 15-year-old boy named Robert Priest went missing.

convincing themselves that Diane was not “the kind of person” and there was no way she could have possibly been on drugs while driving and that it had to be a “medical” explanation for Diane’s actions and that she was a “good mother”. Even when the toxicology tests conducted by the medical examiner revealed that Diane was heavily intoxicated with both alcohol and

Animal testing and animal experimentation is an ancient practice. In ancient times, animal testing was the only way to test the safety of medicines. With the advance technology we have today there are more accurate and humane methods to test the safety of products and drugs. Yet, the FDA, which is responsible for guaranteeing the safety of drugs and products, only requires products to go through animal testing. Every year there are products and drugs that pass the FDA’s animal testing and go to the

manufacture of refractories, graphite electrodes, aluminum and mothballs. Humans can also be exposed to naphthalene from a cigarette smoke. Naphthalene had long been considered a non-carcinogenic compound, however, in the year 2000, the US National Toxicology Program discovered an evidence of the carcinogenic activity of naphthalene. Since then, many international agencies have added naphthalene to the list of potential human carcinogens (Preuss, Angerer, & Drexler, 2003). There are various adverse

various processes. Several alternative methods, which were scientifically validated and accepted by competent regulatory bodies, can be utilized for regulatory toxicology purposes, thus reducing or plenarily replacing living animals in toxicology experimentation. The acceptance of the alternative methods as valuable tools of modern toxicology has been recognized by regulators, including OECD, FDA and EPA.(Interdiscip Toxicol. 2011 Sep; 4(3):

I checked out every 24/7 Forensic Files book that my class library had and got to work. The topic was seamless. I soon learned that forensics has a multitude of branches that allowed you to do almost any job in relation to a crime. Anthropology, toxicology, ballistics. A world of options had been opened and I was more than ready to explore it. Once I discovered a topic that was of true interest to me the paper became significantly easier to write. I put in hours of research, explored colleges, and

Bobbi Kristina Brown like doing drugs and had a problem with them, but according to Radar Online, Ocr. 26, 2015, Bobbi Kristina spent the final weeks of her life heavily drugged up. In a transcript of a videotaped deposition by Danyela Bradley, a close friend to Bobbi Kristina, she claims Bobbi Kristina did marijuana, crack, and heroin. The transcript is not from the Nick Gordon and Bobbi Kristina estate civil suit, but instead it is part of an injury lawsuit filed by Russell J. Eckerman. On January

She was fully clothed, with her pockets turned out. She has minor abrasions on her chin and back with needle marks on her arms. A syringe was found about six feet from her body. Her autopsy and a comprehensive toxicology was order on the femoral blood (Kerrigan & Tania, 2005). The toxicology found trace amounts of ibuprofen and 192 mg/L caffeine in the femoral blood (Kerrigan & Tania, 2005). The source of caffeine was unknown, although she had a history of drug abuse and caffeine was used as a butting

conducted before stem cells can be fully utilized but it does have great potential. According to PLOS Biology, a renowned peer reviewed scientific journal, it is possible for alternatives to be used as a complementary resource with the research of toxicology but more research and time is needed before they can completely replace animal testing in most cases. A poll that was taken in 2006 asked natural scientists to rate the importance of animal testing the results were as follows: "on a scale of 1 (not

Throughout history the Legal System has faced many cases dealing with poisonings. In 2003 the case of Cynthia Sommer and her husband Sgt. Todd Sommer of the United States Marine Corps finds a contradicting case of poisoning. You will see the main problem is that the study of the body shows there must of been a poisoning ,but in the trial itself there is no evidence of the poisoning. doctors initially said that Sgt. Todd Sommer died of natural causes at their home at Miramar Marine Corps Air Station

be a part of the fast growing world by contributing to its development has been instrumental in kindling interest in me for pursuing doctoral study at Tulane University (PhD in Chemistry). I am a graduate student having a MS in Pharmacology and Toxicology (Wright State University, OH) with a 3.3 GPA. I have experience in research, analysis, proofreading, writing skills, and can quickly adapt to meet goals in any environment. I would like to present my past performances as my credentials for success