Luminescence Dating in Archaeology

Luminescence Dating in Archaeology Luminescence dating (including thermoluminescence and optically stimulated luminescence) is a type of dating methodology that measures the amount of light emitted from energy stored in certain rock types and derived soils to obtain an absolute date for a specific event that occurred in the past. The method is a direct dating technique, meaning that the amount of energy emitted is a direct result of the event being measured. Better still, unlike radiocarbon dating, the effect luminescence dating measures increases with time. As a result, there is no upper date limit set by the sensitivity of the method itself, although other factors may limit the methods feasibility. How Luminescence Dating Works Two forms of luminescence dating are used by archaeologists to date events in the past: thermoluminescence (TL) or thermally stimulated luminescence (TSL), which measures energy emitted after an object has been exposed to temperatures between 400 and 500 °C; and optically stimulated luminescence (OSL), which measures energy emitted after an object has been exposed to daylight. To put it simply, certain minerals (quartz, feldspar, and calcite), store energy from the sun at a known rate. This energy is lodged in the imperfect lattices of the minerals crystals. Heating these crystals (such as when a pottery vessel is fired or when rocks are heated) empties the stored energy, after which time the mineral begins absorbing energy again. TL dating is a matter of comparing the energy stored in a crystal to what ought to be there, thereby coming up with a date-of-last-heated. In the same way, more or less, OSL (optically stimulated luminescence) dating measures the last time an object was exposed to sunlight. Luminescence dating is good for between a few hundred to (at least) several hundred thousand years, making it much more useful than carbon dating. The Meaning of Luminescence The term luminescence refers to the energy emitted as light from minerals such as quartz and feldspar after theyve been exposed to an ionizing radiation of some sort. Minerals- and, in fact, everything on our planet- are exposed to cosmic radiation: luminescence dating takes advantage of the fact that certain minerals both collect and release energy from that radiation under specific conditions. Two forms of luminescence dating are used by archaeologists to date events in the past: thermoluminescence (TL) or thermally stimulated luminescence (TSL), which measures energy emitted after an object has been exposed to temperatures between 400 and 500 °C; and optically stimulated luminescence (OSL), which measures energy emitted after an object has been exposed to daylight. Crystalline rock types and soils collect energy from the radioactive decay of cosmic uranium, thorium, and potassium-40. Electrons from these substances get trapped in the minerals crystalline structure, and continuing exposure of the rocks to these elements over time leads to predictable increases in the number of electrons caught in the matrices. But when the rock is exposed to high enough levels of heat or light, that exposure causes vibrations in the mineral lattices and the trapped electrons are freed. The exposure to radioactive elements continues, and the minerals begin again storing free electrons in their structures. If you can measure the rate of acquisition of the stored energy, you can figure out how long it has been since the exposure happened. Materials of geological origin will have absorbed considerable quantities of radiation since their formation, so any human-caused exposure to heat or light will reset the luminescence clock considerably more recently than that  since only the energy stored since the event will be recorded. Measuring Stored Energy The way you measure energy stored in an object that you expect has been exposed to heat or light in the past  is to stimulate that object again  and measure the amount of energy released. The energy released by stimulating the crystals is expressed in light (luminescence). The intensity of blue, green or infrared light that is created when an object is stimulated is proportional to the number of electrons stored in the minerals structure and, in turn, those light units are converted to dose units. The equations used by scholars to determine the date when the last exposure happened are typically: Age total luminescence/annual rate of luminescence acquisition, orAge paleodose (De)/annual dose(DT) Where De  is the laboratory beta dose that induces the same luminescence intensity in the sample emitted by the natural sample, and DT  is the annual dose rate comprised of several components of radiation that arise in the decay of natural radioactive elements. Datable Events and Objects Artifacts which can be dated using these methods include  ceramics, burned  lithics, burned bricks and soil from  hearths  (TL), and unburned stone surfaces that were exposed to light and then buried (OSL). Pottery: The most recent heating measured in pottery sherds is assumed to represent the manufacturing event; the signal arises from quartz or feldspar in the clay or other tempering additives. Although pottery vessels can be exposed to heat during cooking, cooking is never at sufficient levels to reset the luminescence clock. TL dating was used to determine the age of  Indus Valley  civilization occupations, which had proved resistant to radiocarbon dating, because of the local climate. Luminescence can also be used to determine the original firing temperature.Lithics: Raw material such as flints and cherts have been dated by TL; fire-cracked rock from hearths can also be dated by TL as long as they were fired to sufficiently high temperatures. The resetting mechanism is primarily heated  and works on the assumption that the raw stone material was heat-treated during stone tool manufacture. However, heat treatment normally involves temperatures between 300 and 400 °C, not alw ays sufficiently high enough. The best success from TL dates on chipped stone artifacts likely are from events when they were deposited into a hearth and accidentally fired. Surfaces of buildings and walls: The buried elements of standing walls of archaeological ruins have been dated using optically stimulated luminescence; the derived date provides the age of burial of the surface. In other words, the OSL date on a foundation wall of a building is the last time that foundation was exposed to light before being used as the initial layers in a building, and hence when the building was first built.Others: Some success has been found dating objects such as bone tools, bricks, mortar, mounds, and agricultural terraces. Ancient slag  left from early  metal production  have also been dated using TL, as well as absolute dating of kiln fragments or vitrified linings of furnaces and crucibles. Geologists have used OSL and TL to establish long, log chronologies of landscapes; luminescence dating is a powerful tool to help date sentiments dated to the  Quaternary  and much earlier periods. History of the Science Thermoluminescence was first clearly described in a paper presented to the Royal Society (of Britain) in 1663, by  Robert Boyle, who described the effect in a diamond which had been warmed to body temperature. The possibility of making use of TL stored in a mineral or pottery sample was first proposed by chemist  Farrington Daniels  in the 1950s. During the 1960s and 70s, the  Oxford University Research Laboratory for Archaeology and History of Art  led in the development of TL as a method of dating archaeological materials. Sources Forman SL. 1989.  Applications and limitations of thermoluminescence to date quaternary sediments.  Quaternary International  1:47-59. Forman SL, Jackson ME, McCalpin J, and Maat P. 1988.  The potential of using thermoluminescence to date buried soils developed on colluvial and fluvial sediments from Utah and Colorado, U.S.A.: Preliminary results.  Quaternary Science Reviews  7(3-4):287-293. Fraser JA, and Price DM. 2013.  A thermoluminescence (TL) analysis of ceramics from Applied Clay Science  82:24-30.cairns in Jordan: Using TL to integrate off-site features into regional chronologies.   Liritzis I, Singhvi AK, Feathers JK, Wagner GA, Kadereit A, Zacharais N, and Li S-H. 2013.  .Luminescence Dating in Archaeology, Anthropology, and Geoarchaeology: An Overview  Cham: Springer. Seeley M-A. 1975.  Thermoluminescent dating in its application to archaeology: A review.  Journal of Archaeological Science  2(1):17-43. Singhvi AK, and Mejdahl V. 1985.  Thermoluminescence dating of sediments.  Nuclear Tracks and Radiation Measurements  10(1-2):137-161. Wintle AG. 1990.  A review of current research on TL dating of loess.  Quaternary Science Reviews  9(4):385-397. Wintle AG, and Huntley DJ. 1982.  Thermoluminescence dating of sediments.  Quaternary Science Reviews  1(1):31-53.

Phrasal Verb Focus about Money for English Learners

Phrasal Verb Focus about Money for English Learners As you know, native speakers of English tend to use a lot of phrasal verbs (sometimes called prepositional, multi-word verb, verbs) in everyday spoken English. In the area of money, there are many, many phrasal verbs about money that are used in both formal and informal situations. Read this short paragraph using  phrasal verbs about money in context. Next, find the definitions below to help you with understanding. Money, Money, Phrasal Verbs about Money! Well, last week I finally  dipped into  that money that I had been  putting aside  for the past year and a half. I decided that I should really enjoy myself so I  splashed out  and had a great meal at Andys. Next, I went to Macys on Saturday and  laid out  $400 for that suit Id told you about. Of course, I used a great deal of what I  had saved up  to  pay back  that bill I had  run up  on my Visa card. It feels great to finally have some money after all those years of  scraping by. Thanks again for  tiding me over  during that long winter of 05. I dont think I would have  got by  without your  bailing me out.Unfortunately, I also had to  cough up  about $250 in insurance costs. Oh well, I guess  shelling out  the cash for those things is just as necessary as anything else... Phrasal Verbs about Money Spending Money lay out - to spend money. especially a large amount splash out - to spend a lot of money on something you dont need, but is very pleasant run up - to create a large debt fork out, fork over - to pay for something, usually something you would rather not have to pay for. shell out - to pay for something, usually something you would rather not have to pay for. cough up - to provide money for something you do not want to Having Just Enough Money get by - to have just enough money for your needs scrape by - to manage to live on very little money Helping Someone with Money bail out - to help a person or organization out of a difficult situation tide over - to help someone with money for a period of time until they have enough Paying Debts pay back - to return money owed to someone pay off - to finish paying all money that is owed Saving Money save up - to keep money for a large expense in the future put aside - to save money for a specific purpose Using Saved Money   dip into - to spend part of your saved money break into - to start to use money that you have saved Here is a practice dialogue using some of the above vocabulary. More on Learning Phrasal Verbs If you are unfamiliar with phrasal verbs, this guide to  what are phrasal verbs  explains everything. Teachers can use this introducing  phrasal verbs lesson plan  to help students become more familiar with phrasal verbs and start building phrasal verb vocabulary. Finally, there are a wide variety of  phrasal verb resources  on the site to help you learn new phrasal verbs and test your understanding with quizzes. One last tip Make sure that when you are studying new verbs in the dictionary to read the  entire  entry. Dont just learn the main verb; take time to look at the phrasal verbs that are constructed using the verb. This will save you a lot of time in the long run. Believe me, if you havent been to an English speaking country, chances are that one of the biggest difficulties for you will be understanding phrasal verb usage. If you already live in a country where English is the primary language you certainly have already experienced this.

The Purpose of Dantes Inferno Essay Example | Topics and Well Written Essays - 1500 words

The Purpose of Dantes Inferno - Essay Example For instance, Dante tried to describe for the reader the overview and the fantastic terrors of hell and with it, he was outlining seven sins wherein: the first circle was limbo); second circle was lust, third circle was gluttony; fourth circle was avarice and prodigality; fifth circle was wrath and sullenness; sixth circle was heresy; seventh circle was violence; eight circle was fraud; and, the ninth circle, treachery). Each description of the circles of hell represented how a specific sin consumes man. The case of the second circle (lust) is a case in point. Those souls being punished in this area were being blown about by the ferocious winds – back and forth, symbolizing the overpowering influence of lust in men who, like the wind are blown aimlessly and needlessly. The only person allowed to speak here was Francesca (an allegory for Eve), who first testified the sheer pain of the punishment when she said: â€Å"There is no greater woe than to remember days of happiness amid affliction† (48). Then, there was Dante himself who represented man as he was being presented with choices – either to sin or to reject it. He was first seen in Canto I lost in the woods and unable to find the right way (diritta via). He had a realization of his predicament and accepted the help of a guide, the poet Virgil even when it meant going another way, leaving a wasteful life behind, and passing through an eternal place with fantastic peril. Here Dante was like all men who must choose his way to salvation or damnation. In this area, another symbolism emerged to depict man’s faculty in his journey through sin, the poet Virgil. Virgil led Dante on a tour through Hell and this represented not just what the character immediately represented as poet, but as a guide, which immediately brings the reader to the element of the human reason. Dante,

Marketing - Sunshine Foods, Inc Case Study Example | Topics and Well Written Essays - 500 words

Marketing - Sunshine Foods, Inc - Case Study Example The main cause identifiable with these problems is inappropriate business strategy that is not aligned with the changing market demands. Market demands include customer preferences and competitors’ offerings. Sunshine Foods Inc lacks focus on consumer requirements in terms of choice of quality, quantity and variety. Thirdly, its business strategy stalled at products with high potential sales volume resulted in limited sales potential by confining to bigger shops and excluding smaller retailers. This created limited market for the wide variety of Sunshine Foods’ products because the smaller retailers could not conform to the high volume sales policy, unaffordable in terms of cost and space. Next, lack of ownership is also a major contributor of low profits attributable to lack of focus on reducing operational costs. Lack of focus on employee retention and motivation caused the downfall of Sunshine Food Inc. Lack of co-ordination between production and sales department ad ded more problems. Lack of diversified expertise in the staff is one of the major problems in Sunshine Food Inc as most of its staff was from its parent company. Recommendations to improve the situation include strategic changes in different aspects of business; this should include change in corporate strategy, marketing and sales methods, research, and human relations. Firstly, the corporate strategy has to be aligned to the organizational goal of improving profits. Next, developing a research team to check profitable and non profitable products on a periodic basis will help the company assess customer requirements, market performance and efficiency of the strategies followed. This research can be used to formulate sales and marketing strategies accordingly. Sunshine Foods needs to expand its offerings to all kind of stores including smaller stores

The Atomic Bomb Essay Example for Free

The Atomic Bomb Essay In 1939 World War II broke out in Europe. Franklin Delano Roosevelt was by then the President of the United States of America. Because of their previous experience in World War I, isolationist ideas had led to the approval of Neutrality Acts in American Congress. These Neutrality Acts were laws which prevented American citizens from selling military equipment or lending money to any country at war. As for non-military supplies, they could only be sold to warring countries if they paid cash for them and took care of their transportation. Japan had turned into Germans strongest ally and their power frightened America, sandwiched between the two countries. Because of this, Roosevelt succeeded in persuading Americans to send both non-military goods and military equipment either to Britain or to any country whose defence he considered necessary to the safety of the USA. In July 1941 the USA stopped all shipments of oil to Japan hoping to weaken the Japanese who imported 80 per cent of their oil from America. On December 7, 1941 Japan bombed the American Pacific battle fleet in Pearl Harbor. The fleet was totally damaged and over 2,000 men were killed. Japan aimed at seizing the Southeast Asia oil and this attack took place to prevent Americans from stopping them. Therefore, on December 8, 1941, the United States declared war on Japan and, since Japan was Hitlers ally, Hitler declared war on the US. The United States was now fighting on the side of Britain and the Soviet Union (the Allies) against Germany and Japan (the Axis). America entered the war to win it. To achieve this goal, some measures had to be taken: First of all, the American government implemented a complete reorganization of American economy. Factories started producing tanks, bombers and other war supplies instead of cars and washing machines. Wages and prices were seriously controlled and income taxes were introduced. To gain the war, more powerful weapons were needed. Thus, scientists started working on a top-secret research scheme, code-named the Manhattan Project. As the White House press release on Hiroshima states, this project was carried on in the United States with British agreement since the USA territories were out of reach of enemy bombing. The director of the laboratory in Los Alamos, New Mexico, where this project developed, was J. Robert Oppenheimer. The aim of the project was to make a nuclear weapon, the atomic bomb, and as soon as possible. First, because the Germans were already working on it, and secondly because it seemed the only means to stop Hitler and the Japanese from destroying the free world, to end the war quickly and to save many human lives. On April 12, 1945, Roosevelt died and Harry Truman, his vice-president, took over as President of The United States. On July 16, 1945, an atomic bomb was tested in the New Mexico desert. On August 6, 1945 an America bomber, the Enola Gay, dropped an atomic bomb over the Japanese city of Hiroshima (a military base in the words of H. Truman). On August 9, 1945, a second bomb was dropped on the city of Nagasaki. On August 14, 1945, the Japanese surrender put an end to World War II. Was Harry Trumans decision to drop the bomb, the most destructive weapon ever seen, aright decision? Some people say yes, others answer is no. Even the scientists involved didnt agree about the issue. Most really hoped that the mere possession of such a weapon could be enough to frighten the enemy and stop the war. Before its use on Hiroshima and Nagasaki, a group of them clearly showed their disagreement signing petitions and warning both of the bombs unusual destructive force and of the radioactive fallout which followed the bomb test. After the damage to Hiroshima and Nagasaki, different opinions could still be heard: We were afraid that Hitler had the bomb first, and we made this bomb, which shortened the war and saved a lot of American and Japanese lives in the Japanese war (Victor Weiskopf, physicist). If I had known that the Germans would not succeed in constructing the atomic bomb, I would have never lifted a finger (Albert Einstein, physicist). I think it was necessary to drop one, but the second one could have easily been avoided. I think Japan would have capitulated anyway (Hans Bethe, physicist).

Plea Bargains and Mandatory Sentencing Essay -- essays research papers

Plea Bargains and Mandatory Sentencing I would like to take this time to explain my position on Plea Bargains and Mandatory Sentencing. I will show both pros and cons for each topic, as well as give you my personal brief on which one I support. There are two types of plea bargains : The first one is a charge bargain. When the prosecutor allows a defendant to "plead guilty to a lesser charge†, or to only some of the charges that have been filed against him. For example, a defendant charged with burglary may be offered the opportunity to plead guilty to "attempted burglary". A defendant charged with Drunk Driving and Driving with License Suspended may be offered the opportunity to plead guilty to just the drunk driving charge. The second plea bargain is when a defendant is told in advance what his sentence will be if he pleads guilty. This can help a prosecutor obtain a conviction if, for example, a defendant is facing serious charges and is afraid of being hit with the "maximum" sentence. Typically, sentence bargains can only be granted if they are approved by the trial judge. Many jurisdictions severely limit sentence bargaining. Sentence bargaining sometimes occurs in high profile cases where the prosecutor does not want to reduce the charges against the defendant, usually for fear of how the newspapers will react. A sentence bargain may allow the prosecutor to obtain a conviction to the most serious charge, while assuring the defendant of an a...

Talent Code

In The Talent Code, the process of building talent is described in depth. In order to create a talented basketball team I will use principles from this book. Talent is not entirely dependent on genes and you are not a finished product (talent wise) when you are first born. Growing talent in players requires three aspects that are described in the book. First, Deep practice is required to learn the skills necessary to become a skillful player. Deep practice is not about the amount of time spent practicing, but the concentration and effort given in the time while practicing.Second, Ignition is required in order to have the energy and passion required to practice and develop into a good basketball player. Ignition is the responsibility of the coach, because he/she must call on primal cues in order to ignite the players. Thirdly, master coaching is required in order to get the most out of each individual player. It is the responsibility of the coach to read each player and decide what st yle of coaching is most suited to inspire and teach that player. Deep practice is perhaps the most important aspect in developing talent.Deep Practice is the best way to produce myelin. Skill and talent is a result of nerve fibers firing fast and smoothly and myelin helps to make these firings happen faster and smoother the more times they are fired. Deep practice in basketball can be done in multitude of ways. The main idea of this practice should be targeted learning. What is the target? The target is to improve in every aspect of the fundamentals of basketball dribbling, shooting, and passing. Deep practice requires the player to be challenged enough to make mistakes, correct those mistakes, and keep improving.This is the most efficient way to create myelin and improve overall skill and talent. Practice should be held not with the idea to practice for as long and hard as possible, but with the idea to practice efficiently. Drills should be broken up into chunks in order to learn each specific movement . This will target each specific nerve firing required for the action. Secondly an idea would be to practice each drill in slow motion. This will help to make sure the movements are being done correctly so that the myelin is being used efficiently.Players should be one hundred percent focused on their drill. Deep practice requires a lot of energy that comes from ignition. Ignition is the motivation that comes from primal cues that players are largely unaware of. These primal cues mostly come from our distinctly human personality trait that gears us toward future belonging. It is our desire to be a part of groups of people who are accomplishing something worthwhile. In order to get ignition from a basketball team they must be inspired to want to be like a certain player or team. Videos should be shown of those teams and players.The challenge should be set forth that in order to be like those teams and players a lot of hard work will be required. This should ign ite the players into wanting to belong to that same exclusive group of players or teams. The coach has the most responsibility to inspire players into deep practice and ignition through Master Coaching. It is the coach’s responsibility to build myelin circuits for each player based on their individual personalities. The coach must tell the player how to practice in order to develop the skill circuit to fire the right way.The coach must know how to coach and interpret each players learning style. Each player may require a different style of coaching in order to ignite them and get them to fire the correct way. Once a skill is taught the coach should increase the level of difficulty quickly in order to shock the player. This is the fastest way to grow skill and challenge the player into deep practice. Coach should point out errors honestly and correct them in order for continuous improvement and in order to make sure myelin is being applied correctly to the nerve circuits.Good coaching should help support which circuit should be fired at the correct time. In short, myelin is the key to growing talent. The only way to grow myelin is deep practice that comes from ignition from primal cues. Talent is not a fixed thing for human beings and it can be learned. There is a lot of improving that can occur no matter what the starting skill level of the player is. Talent is more about commitment and concentration on the task being practiced. This is the best way to fire nerves quickly and grow myelin so that they keep firing that way.

Vizio Case

Management Focus on Vizio Quest no 7: Reread the Management Focus on Vizio and answer the following questions: a. Why is the manufacturing of flat panel TV’s migrating to different locations around the world? Vizio’ TV get their panel from South Korea, electronic components from China, and processors from the United States, and it is come together in Mexico. Vizio’s managers search for the cheapest manufacturers of flat panel displays and these electronic components.Vizio’ TV move to the developing countries to making their products because the workers salaries are lower than the United States, so they can reduce the cost of the products. Another reason of migrating to different locations is the decreasing trade and investment barriers between countries. b. Who benefits from the globalization of the flat panel display industry? Who are the losers? Vizio Company takes benefits from globalization of the flat panel display industry because they reduce the lab or costs and then also increase their profit.The labors in foreign countries also benefit because they are hired with a higher salary by the company. Consumers also benefit from it because they can purchase the TV in a lower price as compare with other brands prices. Some people could not get any benefits because when the company moves to another country, they have to lose jobs. The manufacturing products environment in the foreign country may be effected or harmful due to the pollutant release to the environment and it affects the people who live around. d. What does the example of Vizio tell you about the future of production in an increasingly integrated global economy?What does it tell you about the strategies that enterprises must adopt to thrive in highly competitive global markets? In the future, more and more companies will choose the globalization in production which is applied to their business, the manufacturers to reduce the cost and increase the competitive advantages i n the market. When every manufacturer follows this strategy, the unfair in competition will remove. For example, Sonyand Hitachi close their plants in U. S but make T. V in Mexico and Asia plants and sell their products in U. S to compete with Vizio Company.

Odgovori Vikend Essay

Odgovori Vikend Essay Odgovori Vikend Essay BUSINESS STRATEGY 1. Outside stakeholders often demend that inside stakeholders' be suportinated to the greater good of society (ousiders). They believe that such issues as pollution, the disposal of solid and liquid waste, and the conservation of natural resources should be principal consideration in strategic decision making. On the other hand, inside stakeholders tend to believe that the competing claims of outsiders should be balanced against one another in a way that protects the company mission. For example, they tend to believe that the need of consumers for a product should be balanced against the water pollution resulting from its production if the firmcannot eliminate that pollution entirely and still remain profitable. Some insiders also argue that the claims of society, as expressed in government regulation, provide tax money that can be used to eliminate water pollution and the like if the general public wants this to be done. There are four types of social commintment that managers must consider regarding social responsability: Economic responsabilities represent the duty of managers, as agents of the company owners, to maximize stockholder wealth. Legal responsabilities represent the company's obligations to comply with the laws that regulate business activities. Ethical responsibilities represent the strategic managers' notion of right and proper business behavior (example: distibution of cigarettes is legal, smoking is unethical). Discretionary responsabilities are responsabilities voluntarily assumed by a business organization (public relations, good citizenship, full corporate social responasibilities). 2. The Sarbanes-Oxley Act has redefined the structure of corporate governance and responsibility. This has heightened the priority of boards of directors’ thinking relative to business ethics and social responsibility as they are now directly involved in corporate audits. There are no longer layers of management between internal auditors and top managers as the officers are not allowed to be the sole provider of financial data. Sarbanes-Oxley also includes new certifications and regulations for financial statements as well as new disclosure requirements and penalties to those who fail to comply. With greater accountability placed on board members, both business ethics and social responsibility have become key obligations for them to uphold. 3. Five principals of collaborative social initiatives are: Identify a Long-Term Durable Mission: Firms make the greatest social contribution when they indetify an important , long standing policy challenge and they participate in its solution over the long term. (Examples: Avon Poducts Inc., Home Depot). Contribute ''What We Do'': Firms maximize the benefits of their corporate contributions when they leverage core capabilities and contribute products and services that are based on expertise used in or generated by their normal operations. (Example: Starbucks Coffee Company, IBM) Contribute Specialized Services to a Large-Scale Undertaking: Companies have the greatest social impact when they make specialized contributions to large-scale cooperative efforts. Those that contribute to initiatives in which other private, public, or non-profit organizations are also active have an effect that goes beyond their limited contributions. (Example: AES company). Weigh Government's Influence: Government's support for corporate participation in CSIs can have an important positive influence.Tax incentives , liability protection, and other forms of direct and and indirect support for business all help to foster business participation and contribute to the success of CSIs. Assamble and Value the Total Package of Benefits: Companies gain the greatest benefits from their social contributiors when they put a price on the total benefit package. The valuation should include both the social contributions delivered and the reputation effects that solidify or engance the company's

The Functions of Boldface

The Functions of Boldface The Functions of Boldface The Functions of Boldface By Mark Nichol Boldface type, which has a heavier weight than, meaning it is thicker than, roman type, is employed to provide emphasis but has a prescribed set of uses. This post outlines those uses. In running text- the default wording in a piece of context, as opposed to display copy, which consists of headings, subheadings, captions, footnotes, sidebars, and other special text- boldface is appropriate only in certain circumstances. In printed and online publications, it is most often employed in educational contexts, where newly introduced terms may be bolded, or styled in boldface, to signal to a reader that such terms are key to understanding the topic under discussion. For example, in textbooks, words introduced as new vocabulary are often formatted in boldface within the running text. At the beginning of each chapter or section, these words may be listed in a sidebar, and they may be defined in footnotes or in a glossary, or list of terms and definitions, at the end of the section or the book. In most other cases, using boldface in running text is an aesthetic choice, often for humorous effect or, for example, to represent shouting in a children’s storybook. Display copy is often boldface to distinguish it from the running text, although such content is generally styled in a different font and in larger point sizes for that reason. Run-in subheads or sideheads- those that begin a paragraph or a section of type rather than appear on a line above it, and that are generally formatted the same point size as the rest of the paragraph or section- are often boldfaced to distinguish them from the narrative that follows. (Such subheads are, alternatively, often italicized.) Punctuation following a run-in subhead, whether a period, a colon, or a dash, should also be boldface. And when, for example, glossary terms are boldfaced, if punctuation follows each term before the definitions, the punctuation should be boldfaced. This is also true for figure headings (where, for example, â€Å"Figure 1.† or â€Å"Figure 1:† precedes the title of the figure) and captions, where directional terms such as above or left may be boldfaced or where a run-in heading may precede a caption’s explanatory text. However, in running text, punctuation that follows a boldfaced term, because it is associated with the surrounding text, not with the emphasized element, is not boldfaced. (This is true even if the boldfaced term is enclosed in parentheses or bracketed by a pair of commas or dashes.) Want to improve your English in five minutes a day? Get a subscription and start receiving our writing tips and exercises daily! Keep learning! Browse the Style category, check our popular posts, or choose a related post below:50 Slang Terms for MoneyCapitalization Rules for Names of Historical Periods and MovementsIs "Number" Singular or Plural?

Ecology of Organisms Lab Report Example | Topics and Well Written Essays - 250 words

Ecology of Organisms - Lab Report Example Different pH levels affected the germination and growth rates of the radish seeds. This experiment was examining the effects of different pH level on germination of radish seeds. Water with a pH of 6, vinegar pH 3 and baking soda pH 10.5 were used. From the results, pH 3 radish never grew at a slow rate radish on pH 10.5 grew at a slower fairly rate and pH 6.5 grew the fastest. In vinegar, only 10% of the seeds germinated 40% in baking soda and 100% in water. Extremely low pH affected seed germination and maximum growth recorded at a neutral pH. In general, the lower the pH of the environment, the harder for radish seeds to germinate and to survive. It would be appropriate to conclude that plant species with a narrow range of pH are in trouble. Most plants germinate and grow best in a pH range of 7 to 9. The higher and lower pH levels, especially of 3 and 11, drastically reduce growth of plants and crops. Acid rain is a problem since it reduces the pH levels of soil to below 5. From the above experimental results, it suggests that acid rain may drastically reduce crops and plants