Tuesday, November 26, 2019

Major General Gideon J. Pillow in the Civil War

Major General Gideon J. Pillow in the Civil War Gideon Pillow - Early Life Career: Born June 8, 1806 in Williamson Country, TN, Gideon Johnson Pillow was the son of Gideon and Ann Pillow.   A member of a well off and politically-connected family, Pillow received a classical education in local schools before enrolling at the University of Nashville.   Graduating in 1827, he read law and entered the bar three years later.   Befriending future president James K. Polk, Pillow married Mary E. Martin on May 24, 1831.   Later that year, Tennessee Governor William Carroll appointed him a district attorney general.   Possessing an interest in military affairs, Pillow commenced service in the state militia with the rank of brigadier general in 1833.   Increasingly wealthy, he expanded his land holdings to include plantations in Arkansas and Mississippi.   In 1844, Pillow used his influence to aid Polk in obtaining the 1844 Democratic nomination for president. Gideon Pillow - Mexican-American War: With the beginning of the Mexican-American War in May 1846, Pillow sought a volunteer commission from his friend Polk.   This was granted on July 1, 1846 when he received an appointment as a brigadier general.   Initially leading a brigade in Major General Robert Pattersons division, Pillow saw service under Major General Zachary Taylor in northern Mexico.   Transferred to Major General Winfield Scotts army in early 1847, he took part in the siege of Veracruz that March.   As the army moved inland, Pillow demonstrated personal bravery at the Battle of Cerro Gordo but his leadership proved weak.   Despite this, he received a promotion to major general in April and ascended to division command.   As Scotts army neared Mexico City, Pillows performance improved and he contributed to the victories at Contreras and Churubusco.   That September, his division played a key role in the Battle of Chapultepec and he suffered a severe wound in his left ankle. Following Contreras and Churubusco, Pillow clashed with Scott when the latter directed him to correct official reports that overemphasized the role he played in the victories.   Refusing, he worsened the situation by submitting a letter to New Orleans Delta under the name Leonidas which claimed that the American triumphs were solely the result of Pillows actions.   When Pillows machinations were exposed following the campaign, Scott had him arrested on charges of insubordination and violating regulations.   Pillow then accused Scott of being part of bribery scheme to bring an early end to the war.   As Pillows case moved towards court-martial, Polk became involved and ensured that he was exonerated.   Leaving the service on July 20, 1848, Pillow returned to Tennessee.   Writing of Pillow in his memoirs, Scott stated that he was only person I have ever known who was wholly indifferent in the choice between truth and falsehood, honesty and dishonesty and willing to commit a total sacrifice of moral character to attain his desired end. Gideon Pillow - The Civil War Approaches:            Through the 1850s Pillow worked to enhance his political power.   This saw him unsuccessfully attempt to secure the Democratic nomination for vice president in both 1852 and 1856.   In 1857, Pillow was outmaneuvered by his rivals when he sought to gain a seat in the US Senate.   During this period, he befriended Isham G. Harris who was elected Governor of Tennessee in 1857.   As sectional tensions worsened, Pillow actively supported Senator Stephen A. Douglas in the election of 1860 with the goal of preserving the Union.   Following Abraham Lincolns victory, he initially resisted secession but came to support it as it was the will of the people of Tennessee. Through his connection to Harris, Pillow was appointed the senior major general in the Tennessee militia and made commander of the states provisional army on May 9, 1861.   Taking time to mobilize and train this force, he was transferred to the Confederate Army in July with the lower rank of brigadier general.   Though angered by this slight, Pillow accepted a posting to serve under Major General Leonidas Polk in western Tennessee.   That September, on Polks orders, he advanced north into neutral Kentucky and occupied Columbus on the Mississippi River.   This incursion effectively swung Kentucky into the Union camp for the duration of the conflict. Gideon Pillow - In the Field: In early November, Brigadier General Ulysses S. Grant began moving against the Confederate garrison at Belmont, MO across the river from Columbus.   Learning of this, Polk dispatched Pillow to Belmont with reinforcements.   In the resulting Battle of Belmont, Grant succeeded in driving back the Confederates and burning their camp, but narrowly escaped when the enemy attempted to cut his line of retreat.   Though largely inconclusive, the Confederates claimed the engagement as a victory and Pillow received the thanks of the Confederate Congress.   As in Mexico, he proved difficult to work with and soon was engaged in a dispute with Polk.   Abruptly leaving the army in late December, Pillow recognized he had made a mistake and was able to have his resignation cancelled by President Jefferson Davis. Gideon Pillow - Fort Donelson: Assigned to a new post at Clarksville, TN with General Albert S. Johnston as his superior, Pillow began forwarding men and supplies to Fort Donelson.   A key post on the Cumberland River, the fort had been targeted by Grant for capture.   Briefly commanding at Fort Donelson, Pillow was superseded by Brigadier General John B. Floyd who had served as Secretary of War under President James Buchanan.   Effectively surrounded by Grants army by February 14, Pillow proposed a plan for the garrison to break out and escape.   Approved by Floyd, Pillow assumed command of the left wing of the army.   Attacking the next day, the Confederates succeeded in opening a line of escape.   Having accomplished this, Pillow shockingly ordered his men back to their trenches to resupply before departing.   This pause allowed Grants men to reclaim the ground lost earlier.       Irate at Pillow for his actions, Floyd saw no alternative but to surrender.   Wanted for graft in the North and seeking to avoid capture and possible trial for treason, he turned command over to Pillow.   Having similar fears, Pillow devolved command to Brigadier General Simon B. Buckner.   That night, he departed Fort Donelson by boat leaving Buckner to surrender the garrison the next day.   Informed of Pillows escape by Buckner, Grant commented if I had got him, Id let him go again. He will do us more good commanding you fellows.        Ã‚   Gideon Pillow - Later Posts: Though directed to assume command of a division in the Army of Central Kentucky, Pillow was suspended by Davis on April 16 for his actions at Fort Donelson.   Placed on the sidelines, he resigned on October 21 but had this rescinded when Davis returned him to duty on December 10.   Given command of brigade in Major General John C. Breckinridges division of General Braxton Braggs Army of Tennessee, Pillow took part in the Battle of Stones River at the end of the month.   On January 2, during an assault on the Union line, an enraged Breckinridge found Pillow hiding behind a tree rather than leading his men forward.   Though Pillow attempted to curry favor with Bragg following the battle, he was reassigned on January 16, 1863 to oversee the armys volunteer and conscription bureau.   Ã‚   A capable administrator, Pillow performed well in this new role and aided in keeping the Army of Tennessees ranks filled.   In June 1864, he briefly resumed field command to mount an attack against Major General William T. Shermans lines of communication at Lafayette, GA.   A stunning failure, Pillow was returned to recruiting duties after this effort.   Made Commissary General of Prisoners for the Confederacy in February 1865, he remained in administrative roles until his capture by Union forces on April 20.    Gideon Pillow - Final Years: Effectively bankrupted by the war, Pillow returned to practicing law.   Opening a firm in Memphis with Harris, he later sought civil service posts from Grant but to no avail.   Continuing to work as a lawyer, Pillow died of yellow fever on October 8, 1878 while in Helena, AR.   Initially buried there, his remains were later returned to Memphis and interred at Elmwood Cemetery.      Selected Sources Civil War Trust: Gideon PillowLatin Library: Gideon PillowTEHC: Gideon Pillow

Saturday, November 23, 2019

Pros and Cons of MBA Dual Degree Programs

Pros and Cons of MBA Dual Degree Programs A dual degree program, also known as a double degree program, is a type of academic program that allows you to earn two different degrees. MBA dual degree programs result in a Master of Business Administration (MBA) degree and another type of degree. For example, JD/MBA degree programs result in a Juris Doctor (JD) and an MBA degree, and MD/MBA programs result in Doctor of Medicine (MD) and an MBA degree. In this article, well take a look at a few more examples of MBA dual degree programs and then explore the pros and cons of earning an MBA dual degree. Examples of MBA Dual Degree Programs JD/MBA and MD/MBA degree programs are popular options for MBA candidates who want to earn two different degrees, but there are many other types of dual MBA degrees. Some other examples include: MBA and Master of Science in Urban PlanningMBA and Master of Science in Engineering (MSE)MBA and Master of International Affairs (MIA)MBA and Master of Science in JournalismMBA and Master of Science in Nursing (MSN)MBA and Master of Public Health (MPH)MBA and Doctor of Dental Surgery (DDS)MBA and Master of Science in Social WorkMBA and Master of Arts in EducationMBA and Master of Science in Data Science Although the above degree programs are examples of programs that award two graduate-level degrees, there are some schools that allow you to earn an MBA in conjunction with an undergraduate degree. For example, Rutgers School of Business has a BS/MBA dual degree program that awards an MBA in conjunction with a Bachelor of Science in accounting, finance, marketing, or management. Pros of MBA Dual Degree Programs There are many pros of an MBA dual degree program. Some of the advantages include: Flexibility: If you have academic or career goals that involve multiple disciplines or require multiple areas of expertise, an MBA dual degree program can help you maximize your graduate education and gain the knowledge and skills you need to achieve your goals. For example if you want to practice law at someone elses firm, you probably don’t need an MBA dual degree, but if you want to open your own law firm, work with mergers and acquisitions, or specialize in contract negotiations, an MBA degree can give you an edge over other people in your field.Career Advancement: An MBA dual degree could fast-track your career and make you eligible for promotions that might take longer to get or not be available without an MBA. For example, an MD may be perfectly suited to work on the clinical side of a primary care practice but may not have the business skills needed to run a primary care office or work in a non-clinical administrative position. With hospital administrators earning more on average than the doctors who work for the hospital and the need for healthcare reform on the rise, an MBA could be a valuable asset for physicians. Savings: An MBA dual degree program could save you time (and maybe even money). When you earn dual degrees, you could spend less time in school than you would if you earned the degrees separately. For example, it will take you four years to complete a traditional bachelors degree program and another two years to earn a masters degree. A BS/MBA program, one the other hand, could be completed in just five years. Cons of MBA Dual Degree Programs Although there are many pros of MBA dual degrees, there are cons that you should consider before applying to a program. Some of the drawbacks include: Time commitment: Earning two different degrees means you will have to spend more time in school than you would if you were earning just one degree. For example, most full-time MBA programs take two years to complete. If you are earning a JD/MBA, you will need to spend at least three years in school (in an accelerated program) or four to five years in school in a traditional JD/MBA program. This could mean taking more time off work, more time away from family, or putting other life plans on hold.Financial commitment: A graduate-level education isn’t cheap. Top MBA programs are notoriously expensive, and earning an MBA dual degree is even more expensive. Tuition varies from school to school, but you could end up spending $50,000 to $100,000 per year on tuition and fees.Return on Investment: Although an MBA education can be helpful for professionals who are opening their own business or working in a management or leadership capacity, there isnt any job that officially requires an MBA dual degree. For example, you dont need an MBA to practice law, medicine, or dentistry, and an MBA is not a requirement in other professions like engineering, social work, etc. If an MBA isnt essential (or valuable) to your career path, it may not be worth the time or financial investment.

Thursday, November 21, 2019

Revenue Function Assignment Example | Topics and Well Written Essays - 250 words

Revenue Function - Assignment Example It is almost impossible to obtain accurate and reliable financial figures for the intangible services being provided (Cleverly,Song , &Cleverly,2011). According to Brown (2012) in Encyclopedia for Business ,the external revenue generation of not-for profit organizations adds to the complexity. These organizations rely on funds from other external sources, which is a challenge itself since there is no incentive for the contributors. The role of the largest client of healthcare organizations, that is government, makes the whole process even more complex due to the complex payment system. For the successful running of HCO understanding of policies, rules and procedures is of utmost importance(Cleverly,Song , &Cleverly,2011). The integral part of economy of any country is composed of Non-profit organizations because of its valuable services. Unaffordable services are made available and approachable through these organizations. This increases the pressure on such organizations to fill the discrepancies which result in the complexity of the revenue functions. Just like profit organizations such not for profit organizations are also a business and the requirements for revenues has to be met for effective functioning of the organization. Cleverly, W. O., & Song, P. H. & Clevrly,J.O. (2011).Financial Envoirenment of Healthcare Organizations.Essentials Of Healthcare Finance(7th Ed.). Retrieved from

Tuesday, November 19, 2019

Collaborative online learning Essay Example | Topics and Well Written Essays - 3000 words

Collaborative online learning - Essay Example The purpose of collaborating online is to enable learners to interact with each other, to help them share knowledge, and to facilitate them in exchanging thoughts through using online portals (Geiss & Roman, 2013). Online learning incorporates collaborative learning which is recognized as a great and worthwhile opportunity, not only in terms of allowing access for fellow students, but also in giving them chances to work together so to make theor learning take place online more effectively, as compared to the traditional face-to-face class (Tsai, 2011). Generally, collaboration is now recognised as one of the most essential skills that are necessary for learners to function effectively within an online community. It is necessary that we know how students learn, communicate, and how the increasing functionality of technology is raising the bar of communication and collaboration (Sulisworo, 2012). By definition, collaborative learning refers to certain environments in which learners engage in a common and authentic task and the methodology applied therein, and in which each peer is dependent on and accountable to the others in the group or team (Tsai, 2011). Bouroumi and Fajr (2014) defined collaboration and cooperation as "teaching strategies that allow students to interact with each other and work together in order to learn more efficiently" (p.66). Cullen, Kullman, and Wild (2013) also mentioned that the practice of collaboration involves "a situation where two or more people learn or attempt to learn something together, and it ha s strong support from a range of theoretical perspectives including motivation, cognition, and social cohesion" (p. 426). Collaborative learning has also been defined as a pedagogy in which learners come together, usually in groups, and grain in their learning as a result of mutual cooperation. In this arrangement, each

Sunday, November 17, 2019

Gender Representation Essay Example for Free

Gender Representation Essay How stereotypical are the representations of Gender in my chosen texts? My chosen texts are The Inbetweeners , X Factor and BBC News. All three texts represent gender in different ways yet I wouldnt say that any of them truly represent both genders in stereotypical ways. In The Inbetweeners the main characters are portrayed in a very stereotypical way at first glance, they are boystrous and objectify women in the crude way in which they speak about them. Yet when you look deeper into their characters you realise that they are not typical at all. The females in the show are typical in a sense that they are pretty, well dressed and are purely there for the male gaze. It is this male gaze that ultimately makes them more powerful than the males in the series as they have the power to either sleep with, or not sleep with the males which takes all control away from the men which is not a typical trait. When you think of a typical male in tv they are strong, handsome and in control, this is not always evident in The Inbetweeners which supports the masculinity in crisis theory which states that males are no longer the dominant sex in modern society. Women may be objectified still but they use their sex appeal to there advantage and get their own way leaving the males powerless. You do how ever have the very typical character of Jays dad which is a hyperbolic example of a male as he passes gas, swears and acts in a completely innaproriate way for the comedic value. The X Factor has a very contrasting representation of gender. In one way the male characters are very stereotypical as they have the power to say yes or no to the acts as judges. Males are stereotypically known for being in a position of power so this is a typical representation. Yet you have Dermot Oleary who is very masculine in his appearance yet is very caring and sympathetic for the contestants. This is not typical as males arent usually shown to have a caring side or emotions as that is left for the women. This again supports the theory of masculinity in crisis. The Female Judges do not have a very typical representation. They are in a position of authority and power and to an extent in the new series do have more power than the male judges as they are more forceful and get their point across better. This is not typically the way women are represented fitting into the theory of Masculinity in crisis. The BBC news is very much like the X Factor. When the males are the anchors they are in a position of power and knowledge which is a typical representation. They appear to the nation as a pillar of knowledge and the public give them a vast amount of respect which is typical of the representation of men. When the women are anchors they too are looked upon as a pillar of knowledge and are given the same respect which does not fit into the typical representation of a female.

Thursday, November 14, 2019

The Need for Tougher Prisons Essay -- Argumentative Persuasive Topics

   The purpose of the prison system was meant to be a deterrent to crime, as a preventative measure and to those who have already committed crimes, it is supposed to keep them from coming back. Obviously this did not work, today there are overcrowded jails and courts that look to any other way to punish a criminal besides jail time. The other options do not work either, they have not reduced the prison population nor have they created a sort of fear of being punished that a tougher system might do(Faugeron 5). I think the prison system should be made tougher, and that the alternatives to prison be used in cases where the crime was very small and the criminal would benefit from some other form of punishment than prison. If the criminal has done something so bad as to end up in prison I would expect that they were being treated in a just fashion. Instead of the system trying to teach inmates a lesson there's a law that says that "a convicted offender retains all the rights which citizens in general have, except such as must be limited or forfeited to make it possible to administer a correctional or federal agency"(Hawkins 135). In short they are real citizens except that the correctional facility decides when they eat and sleep. I think all prisons should take away the special privileges of prisoners because the system is supposed to deter criminals from committing crimes and instead are inviting them for extended visits. The only way criminals are going to get the point is by creating a prison system that does not allow anything special for the people who have committed crimes and gets back the root of the purpose for having prisons. Prisons first used the theory of "changing his values so that he will not commit similar offen... ...9: 37. Cohen, Adam. "A Life for a Life." Time. Mar. 8, 1999: 30-35. Faugeron, Claude. "The Changing Functions of Imprisonment." Prisons 2000: An International Perspective on the Current State and Fututre of Imprisonment. Ed. Roger Matthews and PeterFrancis. MacMillian Press LTD.: London 1996. Hawkins, Gordon. The Prison, Policy and Practice. University of Chicago Press: Chicago, 1976. Laurence, John. A history of Capital Punishment. Citadel Press: New York, 1960. "Questions and Answers About the Death Penalty." Daily Tribune. 9 Jan. 1998: A4. Palmer, Ted. A Profile of Corrctional Effectiveness and New Directions for Research. State University of New York Press: Albany, 1994. Ten, C.L.. Crime, Guilt, and Punishment. Claredon Press: Oxford, 1987. Vass, Antony. Punishment, Custody, and the Community. Sage Publications: London, 1990.   

Tuesday, November 12, 2019

Composers use language to create images

Composers use language to create images that communicate main ideas and add richness and depth to their texts BY Chrts961 Composers Wilfred Owen, writer of poems ‘Futility and ‘Exposure', and Jessie Pope writer of Who's for the game? use a diverse range of language techniques in their poems to create images to communicate main ideas . AII words in their poems are important because the way these poets use language is exactly in description which may be used to create tone, atmosphere or mood or simply to add richness and depth to their texts.Wilfred Owen's ‘Futility is about the existence of mankind. From the beginning of Futility we feel a rather scarce sense of emotion and feeling, but towards the end of the poem as the narrator starts to question things we begin to feel how distressed he becomes – â€Å"full nerved – Still warm – Too hard to stir? Was it for this day grew tall? – O what made fatuous sunbeams toil to break Earth's sleep at all? These rhetorical questions indicate to us the sense of urgency being felt for the soldier's life. Ultimately, the composer uses rhetorical questions to communicate deeper emotions. In the second stanza of ‘Exposure', Owen uses a clear description of he sound that the wind makes through the barbed wire – â€Å"like twitching agonies of men among its brambles†. The use of simile helps to create the extreme horror of no man's land and connects with the idea of the title ‘Exposure'.Although Who's for the game? Which is composed by Jessie Pope is about a serious topic, he helps us see the bright side to a war. This is done through rhyme. The use of rhyme gives a musical element in the poem and when combined with a serious topic it would feel as if the poem is trying to fire you up to go sign up and fight for your country in war. â€Å"Who'll give his country a hand? And who wants a seat in the stand? † suggests exactly this. Where is the love?

Sunday, November 10, 2019

Negative Side Effects of a Low-Carb Diet Essay

Diet Low-carb diets can be a healthy and efficient weight-loss program, but they can be risky, as carbohydrates are the only sources of energy for your crucial body organs such as the brain, central nervous system and the kidneys. According to the Mayo Clinic, low-carb diets increase the levels of blood sugar and make your body use its fat stores. However, low-cab diets have some negative side effects associated with them. General Body Weakness When you make a transition from a crab-dependent diet to a low-carb diet, your body needs to adjust to the changes, according to Becky Hand, a licensed and registered dietitian. Low-carb diets cause lack of energy in your body because carbohydrates play a role in the burning of fats, which produce energy. Lack of energy in your body can cause dizziness, nausea, headaches and fatigue. Bad Breath Low-carb diets lead to incomplete burning of fats to produce energy in your body, and in the process, ketones are produced, says Anssi H Manninen, an exercise physiologist specializing in sports nutrition and ergogenic aids. Excess ketones in your body come out through your urine and saliva. This causes bad breath among people on low-carb diets. Though you cannot do much to stop bad breath, drinking water and chewing sugar-free gum can help you suppress bad breath, says Shannon Clark, a certified personal trainer and author of â€Å"8 Low-Carb Conundrums. † Constipation Foods in low-carb diets such as beef have little fiber and cause reduction in body fiber, which can lead to constipation. However, constipation occurs due to lack of roughage in your body regardless your nutrition plan, says Clark. You can avoid constipation by including vegetables in your diet, since they have soluble fiber that slows the movement of food in the intestines to ensure complete digestion of food. Dehydration Low-carb diets burn glycogen stores in your body, which have water. Excretion of ketones through your urine causes frequent urination. This loss of water leads to dehydration when you are on a low-carb diet. Dehydration leads to headaches and fatigue. Take a lot of water to replenish the lost water as a remedy to dehydration caused by low-carb diet, reports the Mayo Clinic. Muscle Cramps Diets low in carbohydrates has an effect on your muscles. This is caused by the dehydration due to your low-carb diet and lack of vitamins that are important for the well-being of your muscles. Muscle cramps reduce your fitness and energy levels, says Doctor Arne Astrup. Consume fruits and vegetables with essential vitamins as a remedy for muscle cramps. Key Concepts * Low-carb diet * Effects of low-carb * Lack of carbohydrates References * US National Library of Medicine National Institutes of Health: Metabolic Effects of the Very-Low-Carbohydrate Diets: Misunderstood â€Å"Villains† of Human Metabolism [ http://www. cbi. nlm. nih. gov/pubmed/18500949 ] * The Mayo Clinic: Low Carb Diets [ http://www. mayoclinic. com/health/low-carb-diet/NU00279 ] * CBSNews. com: Low-Carb Side Effects Cited [ http://www. cbsnews. com/stories/2004/09/02/health/main640566. shtml ] * Bodybuilding. com: 8 Low-Carb Conundrums [ http://www. bodybuilding. com/fun/8-low-carb-conundrums. html ] * Spark People: The Truth About Carbohydrates [ http://www. sparkpeople. com/resource/nutrition_articles. asp? id=590 ] * The Mayo Clinic: Glycemic Index Diet; What’s Behind the Claims [ http://www. mayoclinic. com/health/glycemic-index-diet/MY00770 ]

Thursday, November 7, 2019

Pick up cheap paper writing service for yourself

Pick up cheap paper writing service for yourself Since college students are not so good at paper writing, they have been provided with assistance. This type of assistance is found all over the internet. All what students have to do is get to the laptop and type in cheap writing services. These services are accessible at anytime of the day. They have put in place a support team to attend to customers placing orders. However not all cheap paper writing services take into concern customer satisfaction. Customer satisfaction is the pillar of all success. Where a company does not consider its customers, its hard to tell if they spend quality time producing the paper. Such are companies that will go ahead to resell a paper in their database as a cheap paper. Where a student buys this particular paper, it no longer becomes cheap as it has already been into the market. The professor will not hesitate to punish a student for plagiarized content or for copy paste. What we are saying is that cheap article writing can sometimes be very costly. A student will be forced to rewrite the paper or search for another writing service hoping that he will not be disappointed. We encourage students to only spend their money in the right place. There are cheap paper writing services that completely produce poor end products. When approached with complaints, they simply shut the students off and demand to be paid extra. You have no reason to pay extra amount knowing very well that they are out to frustrate you. No matter how tiring, its better to take time than fall into fraudster traps. Dont be quick to type in essay writing service cheap in a website you have not clearly looked at. Its surprising that some of these cheap labeled services never exist. With the high demand, such services are sure that students will contact them. With everything fake, cheap but expensive is what they give students. Students should keep in mind that custom writing services are managed by humans. Sometimes the greed nature can make humans do evil things that expected. And being a competitive world, no one wants to remain behind. Every essay writing service will do what it takes to capture entire students from a college. And now many are offering cheap services, you dont need to spend money and time searching because we have collected cheap writing services for you!

Tuesday, November 5, 2019

Introduction to the Periodic Table of Elements

Introduction to the Periodic Table of Elements Dmitri Mendeleev published the first periodic table in 1869. He showed that when the elements were ordered according to atomic weight, a pattern resulted where similar properties for elements recurred periodically. Based on the work of physicist Henry Moseley, the periodic table was reorganized on the basis of increasing atomic number rather than on atomic weight. The revised table could be used to predict the properties of elements that had yet to be discovered. Many of these predictions were later substantiated through experimentation. This led to the formulation of the periodic law, which states that the chemical properties of the elements are dependent on their atomic numbers. Organization of the Periodic Table The periodic table lists elements by atomic number, which is the number of protons in every atom of that element.  Atoms of an atomic number  may have varying numbers of neutrons (isotopes) and electrons (ions), yet remain the same chemical element. Elements in the periodic table are arranged in periods (rows) and groups (columns). Each of the seven periods is filled sequentially by atomic number. Groups include elements having the same electron configuration in their outer shell, which results in group elements sharing similar chemical properties. The electrons in the outer shell are termed valence electrons. Valence electrons determine the properties and chemical reactivity of the element and participate in chemical bonding. The Roman numerals found above each group specify the usual number of valence electrons. There are two sets of groups. The group A elements are the representative elements, which have s or p sublevels as their outer orbitals. The group B elements are the nonrepresentative elements, which have partly filled d sublevels (the transition elements) or partly filled f sublevels (the lanthanide series and the actinide series). The Roman numeral and letter designations give the electron configuration for the valence electrons (e.g., the valence electron configuration of a group VA element will be s2p3 with 5 valence electrons). Another way to categorize elements is according to whether they behave as metals or nonmetals. Most elements are metals. They are found on the lefthand side of the table. The far right side contains the nonmetals, plus hydrogen displays nonmetal characteristics under ordinary conditions. Elements that have some properties of metals and some properties of nonmetals are called metalloids or semimetals. These elements are found along a zig-zag line that runs from the upper left of group 13 to the bottom right of group 16. Metals are generally good conductors of heat and electricity, are malleable and ductile, and have a lustrous metallic appearance. In contrast, most nonmetals are poor conductors of heat and electricity, tend to be brittle solids, and can assume any of a number of physical forms. While all of the metals except mercury are solid under ordinary conditions, nonmetals may be solids, liquids, or gases at room temperature and pressure. Elements may be further subdivided into groups. Groups of metals include the alkali metals, alkaline earth metals, transition metals, basic metals, lanthanides, and actinides. Groups of nonmetals include the nonmetals, halogens, and noble gases. Periodic Table Trends The organization of the periodic table leads to recurring properties or periodic table trends. These properties and their trends are: Ionization Energy - energy needed to remove an electron from a gaseous atom or ion. Ionization energy increases moving left to right and decreases moving down an element group (column).Electronegativity - how likely an atom is to form a chemical bond. Electronegativity increases moving left to right and decreases moving down a group. The noble gases are an exception, with an electronegativity approaching zero.Atomic Radius (and Ionic Radius) - a measure of the size of an atom. Atomic and ionic radius decreases moving left to right across a row (period) and increases moving down a group.Electron Affinity - how readily an atom accepts an electron. Electron affinity increases moving across a period and decreases moving down a group. Electron affinity is nearly zero for noble gases.

Sunday, November 3, 2019

Safety Tents and Other Non Permanant Buildings Essay

Safety Tents and Other Non Permanant Buildings - Essay Example These shelters take numerous forms, including a traditional tentlike structure. One of the main advantages of these protective structures is that they are incredibly strong in relation to the weight of their components. Therefore, they can be rapidly deployed by two to four people. Kevlar’s superiority stems from its minimal â€Å"vibration transfer† (Kayak Terapad). It can be molded and shaped, yet maintains its structural integrity. Therefore, it enhances the user’s safety in numerous stress and impact scenarios. One of the military uses for such shelters is the Chemical Biological Protected Shelter System (CBPSS) (Business Wire 1997). They are intended for battlefield use against biological or chemical weapons assault. A company called Chemfab has developed the Kevlar-based fabric. The shelter also reduces lingering air contamination following a chemical or ballistic explosion. Homeland Security is using such a device in dirty bomb control. This variation is called a Universal Containment System, and it was developed by Vanguard Response Sytems in Canada (Popular Mechanics 2004). The ballistic resistant tent contains a foam that suppresses the detonation blast. At present, the system can only suppress a bomb the size of a book bag. The technology will be developed to contain a truck bomb, like the one deployed at the World Trade Center in 1993. A similar application is called the Chemical Biological Explosives Containment System (CBECS). It consists of a seven foot inflatable tent that contains a water-based foam, which not only contains the explosion, but it also puts out any chemically-based fires that may ignite (Patent Storm 2007). The whole structure can cover an explosive device, which is then deployed relatively safely (DOD Tech Match). These tents are now being made for the general public by Zumro, Inc. The Chemical/Biological Counterterrorism