Barium is a soft, heavy, silver-colored metal element. This element does not have very many uses outside of the laboratory, but it combines easily with other chemicals to form compounds used for important industrial uses. For example, Barium carbonate is used in the manufacture of ceramics and special glass, and also to purify certain chemical solutions. It is also an ingredient in clay slurries, also known as water muds, used in drilling oil wells. Barium titanate is used in sonar detectors and other electrical equipment. At low doses, barium acts as a muscle stimulant and at higher doses affects the nervous system eventually leading to paralysis. Acute and subchronic oral doses of barium cause vomiting and diarrhea, followed by decreased heart rate and elevated blood pressure. Higher doses result in cardiac irregularities, weakness, tremors, anxiety, and dyspnea. A drop in serum potassium may account for some of the symptoms. Death can occur from cardiac and respiratory failure. Acute doses around 0.8 grams can be fatal to humans. Barium nitrate makes signal flares burn with a green flame. Barium ferrite is used to make magnets. Barium sulfate is an extremely insoluble barium compound that is not poisonous. Doctors use it in X-ray examinations of a patient's digestive system. The barium sulfate absorbs X rays to show an outline of the intestines on the developed film. A barium enema is performed to examine the walls of the colon. During the procedure, a well lubricated enema tube is inserted gently into the rectum. The barium is then allowed to flow into the colon. The flow of the barium is monitored by the health care provider on an X-ray fluoroscope screen. The test is used to detect colon cancer. The barium enema may also be used to diagnose and evaluate the extent of inflammatory bowel diseases. Barium sulfate and zinc sulfide form lithopone, a white coloring matter for paint. Barium is never found in a pure state because it combines so easily with other elements. Pure barium is obtained by passing an electric current through a fused barium compound, such as barium chloride. A piece of barium metal quickly reacts with oxygen and water vapor in the air to form barium oxide. It must be stored under kerosene to keep it pure. Barium is found most often as barium sulfate in the mineral barite. The chemical symbol for barium is Ba.
‘The Things They Carried’ by Tim O’Brien provides a insider’s view of war and its distractions, both externally in dealing with combat and internally dealing with the reality of war and its effect on each solder. The story, while set in Vietnam, is as relevant today with the conflicts in Iraq and Afghanistan as it was in the 1960’s and 1970’s in Southeast Asia. With over one million soldiers having completed anywhere from one to three tours in combat in the last 10 years, the real conflict might just be inside the soldier. O’Brien reflects this in his writing technique, using a blend of fiction and autobiographical facts to present a series of short narratives about a small unit of soldiers. While a war story, it is also an unrequited love story too, opening with Jimmy Cross holding letters from a girl he hoped would fall in love with him. (O’Brien 1990).
It is important to note that the Iliad is originally a poem told by many bards and storytellers; by using similes, Homer compliments the spoken word of the Iliad with a visual component. In certain scenes, Homer utilizes similes in the Greeks’ favor, elevating their battle prowess in comparison to the Trojans. Presented to a primarily Greek audience, Homer’s particularity in bolstering the Greek army plays to the bias of the audience––augmenting the atmosphere of the crowd. The implementation of similes throughout the epic is vital to the poem as it provides the Greek audience with a brief respite from the practically nonstop gore of
Tim O'Brien's The Things They Carried is not a novel about the Vietnam War. “It is a story about the soldiers and their experiences and emotions that are brought about from the war” (King 182). O'Brien makes several statements about war through these dynamic characters. He shows the violent nature of soldiers under the pressures of war, he makes an effective antiwar statement, and he comments on the reversal of a social deviation into the norm. By skillfully employing the stylistic technique of specific, conscious detail selection and utilizing connotative diction, O'Brien thoroughly and convincingly makes each point.
During times of war, man is exposed to the most gruesome aspects of life such as death, starvation, and imprisonment. In some cases, the aftermath is even more disastrous, causing posttraumatic stress disorder, constant guilt, as well as physical and mental scarring, but these struggles are not the only things that humans can take away from the experience. War can bring out the appreciation of the little things in life, such as the safety people take for granted, the beauty of nature, and the kindness of others. These universal consequences of fighting all contribute to what war is really capable of doing, sometimes bringing out the best and worst in people, and constantly shaping society. In The Things They Carried, Tim O’Brien goes through this himself when he writes about setting up base camp in the Vietnamese pagoda, the return to site of Kiowa’s death, the story about the old poppa-san guide, and Mitchell Sanders’ “moment of peace”. When O’Brien includes these stories, it is not to insert joy into a tragedy, but rather to create a more wholesome and authentic feel into a tough, realistic war story. O’Brien’s’ “sweet” stories are there to show the hope he had during war, and also serve as a universal example that even in the darkest tunnels, it is always possible to find rays of light.
Tim O’Brien served in the Vietnam War, and his short story “The Things They Carried” presents the effects of the war on its young soldiers. The treatment of veterans after their return also affects them. The Vietnam War was different from other wars, because too many in the U.S. the soldiers did not return as heroes but as cruel, wicked, and drug addicted men. The public directs its distaste towards the war at the soldiers, as if they are to blame. The also Veterans had little support from the government who pulled them away from their families to fight through the draft. Some men were not able to receive the help they needed because the symptoms of Post-traumatic Stress Disorder (PTSD) did not show until a year
In the novel, The Things They Carried, Tim O’Brien shares several different experiences during the Vietnam War that had a great impact on the soldiers that fought along side him and himself. Although not all the stories are connected to one another, some intertwine. Attempting to show the reader who he is then and who he is now throughout the book, O’Brien flips back and forth between the past and the present: sharing his experiences during the war and his current time being a post-war father. War takes a toll on a man in more ways than one. Many seek comfort in bringing personal items with them to battle to remember where they came from and what they have to look forward to when returning home.
In The Things They Carried, an engaging novel of war, author Tim O’Brien shares the unique warfare experience of the Alpha Company, an assembly of American military men that set off to fight for their country in the gruesome Vietnam War. Within the novel, the author O’Brien uses the character Tim O’Brien to narrate and remark on his own experience as well as the experiences of his fellow soldiers in the Alpha Company. Throughout the story, O’Brien gives the reader a raw perspective of the Alpha Company’s military life in Vietnam. He sheds light on both the tangible and intangible things a soldier must bear as he trudges along the battlefield in hope for freedom from war and bloodshed. As the narrator, O’Brien displayed a broad imagination, retentive memory, and detailed descriptions of his past as well as present situations. 5. The author successfully uses rhetoric devices such as imagery, personification, and repetition of O’Brien to provoke deep thought and allow the reader to see and understand the burden of the war through the eyes of Tim O’Brien and his soldiers.
In “The Things They Carried,” Tim O’Brien brings to light the effects of war on soldiers, both physically and psychologically. The title of the story would lead the reader to believe the story is only about the provisions and apparatus a soldier would physically carry into war. After reading the entire story, it becomes evident that there are many burdens seen and unseen that soldiers face during times of war.
Hugh Hefner once said, “I looked back on the roaring Twenties, with its jazz, 'Great Gatsby' and the pre-Code films as a party I had somehow managed to miss.” The parties of the Roaring Twenties were used to symbolize wealth and power in a society that was focused more on materialism and gossip than the important things in life, like family, security, and friends. The Great Gatsby, by F. Scott Fitzgerald, portrays the characters of Tom and Daisy Buchanan as the epitome of the era. The reader sees these characters acting selfishly and trying to meddle with others’ lives. On the other hand, Nick Carraway, the narrator, acts more to help others and act honestly. Initially the reader sees Carraway’s views towards Jay Gatsby as negative as Gatsby’s actions are perceived as being like the Buchanan’s. As the novel moves forward, the reader notices a change in Carraway’s attitude towards Gatsby. Carraway sees Gatsby for whom he truly is, and that is a loving person who only became rich to win Daisy’s heart. But in this the reader also sees how corrupt and hurtful Gatsby’s actions were to the love of his life. Gatsby’s relationship with Daisy reveals that just as Gatsby’s dream of wooing Daisy is corrupted by illegalities and dishonesty, the “American Dream” of friendship and individualism has disintegrated into the simple pursuit of wealth, power, and pleasure.
Lithium Though the drug lithium is used for a number of disorders ranging from acute depression to eating and personality disorders (Paykel, 1992), it's primary use is for bipolar disorder, also known as manic depression. Patients with bipolar disorder "between two poles: depression and its opposite, mania" (Kalat,2004), often with periods of normal behavior in between (Jamison,1993). In addition, the patient is also prone to "mixed episodes" in which symptoms of both mania and depression are present. Intensity of these episodes can range from mild to dangerous, as in the case of a manic depressive mother who severed the arms of her 10 month old daughter (Associated Press, 2005).
Molybdenum is a transition metal. It is represented by the symbol Mo. It is a pure metal that is is silverish white in color and very hard, and has one of the highest melting points of all pure elements at 4753 °F. Its boiling point is 8382 °F. Its density is 10280 kg/m3 and its hardness is 5.5.
The depressing tragedy known as Babbitt, by Lewis Sinclair, accurately portrays the convention of life in the 1920’s. Sinclair precisely evokes the conformity and orthodox life styles that shaped a growing culture. Man, in the 1920’s, is caught in a lifestyle where he is continually fed on what to think. Lewis cunningly explains the constraints of convention that plagued George Babbitt, and mocks society as a whole for its lack of liberal views. Babbitt throughout the novel seems to be trapped in a maze, and is told by “the machine” when to turn. Only when Babbitt revolts against conservative America does his life change, but the question is was it for the better?
Arsenic is a very dangerous toxin because of its discreet properties. This element has no color, taste or odor especially when place...
The electrons then emit a photon of light. The light for the corresponding wavelength is determined by specific energy level of the certain element, resulting in different colors to appear. Due to sodium’s photons, a yellow and orange light is projected. For the chloride anion tests, the silver salts found in the unknown compound were insoluble, because a mixture between sulfate and silver is insoluble according to the solubility rules; therefore, when mixed with nitric acid and with silver nitrate, a precipitate was formed. The anion would only be chloride if the other four tests proved to be negative. The sulfate anion test also proved positive, as a white precipitant was formed when the unknown substance was mixed with barium chloride and hydrogen chloride; the mixture between barium and sulfate is also insoluble according to the solubility rules. For the acetate, nitrate, and carbonate tests, the results came out negative because there was no definite chemical reaction with the