Primary Pulmonary Hypertension :: essays research papers fc

Primary Pulmonary Hypertension INTRODUCTION A.Each year in the US there are about 300 new cases of PPH diagnosed each year. B.My purpose today is to inform you on the disease PPH C.This topic concerns you because it is a deadly disease that is on the rise. D.Today I will discuss.... 1.What the disease is 2.Causes of PPH 3.Symptoms of PPH 4.Diagnosis 5.Course and Treatment PPH-What is it? Primary(unexplained) pulmonary hypertension (abnormally high blood pressure) is an extremely rare lung disorder. Pulmonary hypertension occurs when there are changes in small blood vessels in the lungs resulting in an increased resistance to move enough blood through the lungs. The resistance places a strain on the right ventricle which must work harder to pump enough blood. If untreated,or if the conditions are generally bad enough,the right side of the heart may fail resulting in death. PPH-What are the causes? There is no definite cause of PPH,but there are possibilities. 1.PPH may be the result of another infection such as heart disease,lung disease,or HIV. 2.PPH may be genetic. A specific chromosome which runs in families is linked to PPH although the type of defect is yet unknown. 3.Familial Inheritance 4.Diet Drugs-By far this is the most known cause. Fen-Phen and Dexfenfluramine,2 diet drugs have been studied and are linked to numbers of cases of pph. These drugs can cause PPH in as little as 23 days the risk increases with the amount of time it is used. 5.Serotonin-Although this is not proved,it is believed that the above diet drugs increase the release of serotonin which is often found in patients transplanted lungs with PPH. It is very possible that this is a cause What are the symptoms of PPH? In the early stages of PPh there are no symptoms. Usually a person will go to the doctor for another disease and will find that it can’t be cured. After numerous tests,PPH is found to be the primary cause. 1.frequent tiredness or tiring easily as if you are out of shape. 2.Difficulty breathing,dizziness,fainting 3.Swelling in ankles/legs,bluish lips and skin 4.chest pain 5.trouble getting air 6.Palpitations-may be so severe that it is compared to a heart attack. How is PPH diagnosed? 1.Electrocardiogram-indicates whether heart is under increased stress 2.PPH is rarely picked up in a routine medical exam. It is usually confused with other heart/lung diseases. 3.Echocardiogram-The doctor uses sound waves to map a structure of the heart and see if the right side is larger. 4.Pulmonary Function Tests-measures lung volume. 5.Right-heart Cardiac Catheterization-A catheter(tube)is placed in the patient’s arm,let,neck...to measure the blood pressure of the right side of the heart. what is the course and Treatment of PPH? PPH starts when a layer of cells in the lungs are damaged.

Be human or victorias secret

Victorians Secret is a famous company of lingerie and beauty products, which was founded in 1977 by Roy Raymond n Ohio, United States. The company's slogan is the sale Of beauty, being sexy, fabulous and perfect. Since 1995, in the last weeks of November the company Victorians Secret presents the Victorians Secret Fashion Show in which it presents the new collections for the year. Famous singers will attend this show as well as the supermodels of the company, who are called Angels. Victorians Secret Angels are selected supermodels for the company's campaigns.All angels are extremely beautiful and fit a mannequin size 36. In November 2014, in GLAMOUR magazine showed that Victorians Secret munched the newest bra campaign â€Å"Body by Victoria Secret† the advertising picture has 10 of the most beautiful Angels models, including models with blonde, brunette and black hair. All Angels are using the new collection of lingerie with possession, confidence and sexy poses. The slogan i n the picture is the â€Å"Perfect Body. Perfect Fit. Perfect Comfort. Perfectly SOFT. † In addiction at the end has â€Å"Explore the Collection† followed with the names of the new ten types of bras.GLAMOUR is a women's magazine focusing on fashion, beauty, relationship, sex, lifestyle and services. The magazine targets women teen the ages of 18 and 40, both single and married. These women may be at any stage of their lives, such as going to college, working in jobs full time or part time, caring for a family. Health and fitness, in search of beauty and well-being are also involved. The target audience is women who are focused itself, and on the world, blobs and internet. These tend to speak of the hottest issues and show all the new trends emerging for the female consumer.The primary ads are new patterns and fashions that come soon. The Perfect Body is a new line of bra Victorians Secret afford to its customers in a huge variety: Rasa and push-up, perfect shape, new perfect comfort deem push up, and others. The variety that most consumers appreciate is the opportunity to choose the best type of bras that fit them. Another purpose of this campaign is that with new bras Victorians Secret you get â€Å"The Perfect Body', Perfect Fit, perfect Comfort and Perfectly Soft. † In reality does everything come together with just a bra?How not to buy? The advertisement for this seems a little be promising with all this perfection in just a bra, we can see clearly the marketing game in the advertisement. The word â€Å"perfect† is ones of racketing games that misleads consumers, and make them purchase the product in search of the perfect. Because consumers are always seeking the best and perfect, and this propaganda ends up attracting them. For example, this new collection of the bra names is the â€Å"PERFECT SHAPE†; can you have the perfect shape with this new bra?Does â€Å"perfect† by Victorians Secret is perfect? It is one o f the facts that everyone would have to examine in advertisements. Another word used in advertising is â€Å"NEW. † Why does everyone want what is new? Just because it is new, is it means better? We now that many times what is new is not better than old, but we live in a consumer's world. We just want what is new, just to keep with the developments and commercial growth. Another type of marketing used to attract consumers are the BEA dutiful models that are confirming the proposal of the campaign.All of them are posing and showing confidence, resourcefulness, and are still being sexy and powerful with panties and bras. What looks interesting in the first time, but which captures the majority of consumers. Who does not Want to feel confident and powerful using only panties and bra? I think that everyone wants to feel good wearing only panties and bras because it is virtually impossible. That is what the companies like Victorians Secret presents and convinces consumers, using i n advertising to reach consumers and have succeed in their new collections.Victorians Secret does not just sell lingerie and beauty products it sells sensuality set, power and the female's fabulous side. In the new campaign â€Å"Body by Victorians Secrets†, 10 angels are positioned as a front line ready for battle, as an army battalion ready to fight. However, battle in this direction is different; he battle is against the consumer. They are showing that this is the body of Victorians Secretes, perfect and ready. When you look yourself and see the new collection and the Angels, you already feel lost and out Of context, and see the need for the new product.This is how propaganda â€Å"Body by Victorians Secret† appeal to the emotional side of marketing, showing that with the new products you can purchase the â€Å"Perfect Body. † Another way that advertising eludes the side emotionally are the features that the models are shown. The Angels are pictured are sexy, confident, uninhibited and happy. Something that appeals to the popular side, people living standards indicated by the media, and to see an advertisement like this in GLAMOUR magazine very consumers believe this is the key to all problems. Furthermore, these advertisements often end up backfiring on a population.Advertisements as this â€Å"The Perfect Body† causes many consumers to rebel by not fit the pattern that company shows. Victorians Secret shows a variety of ethnicity in the photo templates, but has not done the same in the body shapes. This makes many consumers give up the product and even the company. The emotional did ‘Body by Victorians Secret† can take depends on the consumer, and the success of this new collection can be committed only for fit in Angels' size by Victorians Secret. Victorians Secret Angels use their campaigns to attract attention and consumers.The Angels of Victorians Secret are the top models in the fashion world, as Giggles Bunche d, the Brazilian model that is one of the top on the fashion world and well paid, was an Angel. The benefit and aim to have them as Angels is very marketing. Because having the best models in the world fashion wearing Victorians Secrets products, not only attracts nonusers, but also magazines, reports and all media. It is a fact that some consumers will only purchase the products Victorians Secret, because they are the top models in the fashion world.In addition, many news companies will only show advertisements for having the hottest Angels. Victorians Secret is a company that sells dreams and achievements, where the products promise to transform the buyer on being sexy, fabulous, charming and perfect. One of the companies is liable to generalize, by imposing a standard of beauty. The advertisement â€Å"Body by Victorians Secret† with the slogan â€Å"The Perfect Body† s one of the advertisements that would never come through the media. I wonder what the company Vict orians Secret wins to continue with advertisements and campaigns that link to a â€Å"perfect model†.Of course it has its consumers â€Å"perfect model†, which still make a profit. In a developing world in which we live, we must take action against companies imply that standard, a standard that does not involve half the world's population. We all should stop dreaming about the promises that Victorians Secrets presents. Each has its life; each has its shape, size, color, and so on. Everything is different; we deed to have something perfect to follow? Who said that the perfect is The Perfect by Victorians Secret?

Movie Rental Industry

Movie Rental Industry Netflix and Blockbuster Case Analysis Lydia Floyd Strategic Management MGT422 February 28, 2013 Introduction Netflix competitive strategy In order for Netflix to understand were the business lies as it relates to the competition it is important to seek the correct strategy in order to be and stay competitive. The five competitive strategies are * Low- Cost * Broad Differentiation * Best-Cost * Focused niche based on low cost * Focused niche based on differentiation Since each strategy requires totally a different approached my recommendations will be based on focused niche based on differentiation.Netflix originally offered DVD’s on a fee per DVD basis and eventually branched off into the monthly subscription service business. The company at one point was forecasted to have over 11. 3 million subscribers by 2009 and 8 million VOD (Video on Demand) customers by 2013. (See Exhibit 1) This exhibit basically shows how the number of video streaming choices has increased over the past several years. So the company is moving in the right direction as far as broaden their differentiation strategy.The next exhibit shows how Netflix compares to the its main competition and how the company’s net profit margin exceeds a competitor like Blockbuster. The attached SWOT analysis for Netflix mentions some very important points that are associated with a focused differentiation strategy. The company is staying committed to how to service the niche better than the competition and speaks to the areas that appeal to specific customers such as offering services that allow subscribers to go back to pilot episodes of a television series.This analysis will allow the company to identify areas to concentrate on strategically and to make a final diagnosis to where the company stands overall. Strengths * Increasing competition per member viewing is on the * Customers’ opting out is the lowest it has ever been. * Clearest brand identity â€Å"Watc h TV shows & movies anytime, anywhere† * Netflix has surpassed the competitions in improving personalization of customer choices because of large membership base * Price $7. 99 per month * Exclusive Content: Of Netflix's top ten TV shows, six are only on Netflix, and not available with competitors. Netflix's DVD subscription service is extremely profitable, with contribution margins around 50%. * Services allow customers to go all the way back to the beginning of the first season for TV shows Weaknesses * DVD subscriptions are down 8. 47 million subscribers in Q3, 2012 compared to 13. 81 million subscribers 1 year ago. * Brand suffered when the company changed the pricing * It could take three years for a full brand recovery in order to see noticeable difference to profit margins * Streaming subscription contribution margins are much Opportunities International expansion (global) * Original productions offer a way for the company to connect with customer emotions. Company will be offering 4 TV series this year that will only be on Netflix * Lack of use of debit and credit cards – Latin America. * Internet TV. Threats * As Hastings pointed out, â€Å"With big markets comes competition† – There is a clear transition from linear TV to Internet TV and competitors want in on the profits. * Contracts with Disney, Sony, and Universal * Hulu, offers its customers TV shows immediately after they are aired for the first time. Hulu, Amazon, and HBO competitors making more investments in streaming options * United Kingdom is a very competitive â€Å"The sought after competitive advantage over other movie rental competitors was to deliver compelling customer value and customer satisfaction by eliminating the hassle involved in choosing rent and returning movies. Grow forward the company has 2 primary strategic objective 1 to continue to grow a large DVD subscription business and to expand rapidly to internet based delivery of content as that mar ket segment developed. (Case page c-102) The company’s revenue has continued to grow substantially over that last couple of years. The next exhibits show the financial position from the end of 2006 to end of 2008 going from 996,660 to 1,364,661 with the net income margin being at 6. 1% by 2008 which shows the company profitability as it relates to expenses and liabilities. The next two slides just give a visual for where Netflix compares to blockbuster as it relates to sales thru 2010Reference Page Thompson , A. University of Alabama 2008 Case 5 Competition in the Movie Rental Industry in 2008: Neflix and Blockbuster battle for market leadership http://beta. fool. com/danielsparks/2012/10/31/netflix-swot-analysis/15522/ http://www. slideshare. net/only1kiku/techindnetflix Gamble, John E. , Strickland, A. J. , & Thompson, Arthur A. , 2010 Crafting and Executing Strategy McGraw Hill/ Irwin New York New York http://finance. yahoo. com/q? s=NFLX&ql=1

Popular Uses for Footnotes, Easier Footnotes with Software

Popular Uses for Footnotes, Easier Footnotes with Software You might be wondering if footnotes have become obsolete by now. Nothing could be further from the truth. While it is true that many publications favor the use of endnotes or APA style citation, footnotes still have their established realms of use. Popular Uses for Footnotes One popular use for footnotes is as a source of supplemental information. If you mention in a paper that one neighborhood lives in poverty, you might mention the exact statistic within a footnote. The position of the footnote is helpful in this instance, as the reader has to only glance down to augment their current information. Another popular use of footnotes is quotation. Perhaps you have quoted one source in the document, and wish to provide an exact or expounded quote or reference below. Footnotes provide the perfect instance for integrated information and quotation whenever you need them. Easier Footnotes with Software You might recall older word processing software that made inserting these notes a nightmare. Even in modern word processing programs, footnotes can become tedious and tiresome. However, with modern Chicago Style software, you can insert footnotes with the touch of a button, making the entire process streamlined.

Biography of Antonio Maceo, Hero of Cuban Independence

Biography of Antonio Maceo, Hero of Cuban Independence Antonio Maceo (June 14, 1845-December 7, 1896) was a Cuban general considered to be one of the greatest heroes of the nations 30-year struggle for independence from Spain. He was given the nickname The Bronze Titan in reference to his skin color and heroics on the battlefield. Fast Facts: Antonio Maceo Full Name: Josà © Antonio de la Caridad Maceo GrajalesKnown For: Cuban independence heroAlso Known As: The Bronze Titan (nickname given by Cubans), The Greater Lion (nickname given by Spanish forces)Born: June 14, 1845 in Majaguabo, Cuba Died: December 7, 1896 in Punta Brava, CubaParents: Marcos Maceo and Mariana Grajales y Cuello  Spouse: Marà ­a Magdalena Cabrales y FernndezChildren: Marà ­a de la Caridad MaceoKey Accomplishments:  Led Cuban independence fighters in their 30-year struggle against Spain.Famous Quote: No whites nor blacks, but only Cubans. Early life Of Afro-Cuban ancestry, Maceo was the first of nine children of Venezuelan-born Marcos Maceo and Cuban-born Mariana Grajales. Marcos Maceo owned several farms in the rural town of Majaguabo, in the eastern province of Santiago de Cuba. Maceo became interested in politics early in life, joining a Masonic Lodge in the city of Santiago in 1864, which was a hotbed of insurrectionist sentiment against Spain. At the time, Cuba was one of the few colonies Spain still controlled, as most of Latin America had gained its independence in the 1820s under the leadership of liberators like Simà ³n Bolà ­var. Antonio Maceo Grajales portrait from Cuban money.   johan10 / Getty Images The Ten Years War (1868-1878) Cubas first attempt to gain independence was the Ten Years War, which was kicked off by the Grito de Yara (Cry of Yara, or call for insurrection) issued by eastern Cuban plantation owner Carlos Manuel de Cà ©spedes, who freed his slaves and incorporated them into his rebellion. Maceo, his father Marcos, and several of his brothers quickly joined the mambises (as the rebel army was called) with the full support of mother Mariana, known as the mother of the nation because of her unwavering dedication to Cuban independence. Marcos was killed in battle in 1869, and Maceo was wounded. However, he had already risen quickly in the ranks because of his skill and leadership on the battlefield. The rebels were ill-equipped to take on the Spanish army, so they avoided large battles and focused on guerilla tactics and sabotage, such as cutting telegraph lines, destroying sugar mills, and attempting to hinder commercial activity on the island. Maceo proved himself to be a brilliant guerilla tactician. According to historian Philip Foner, he depended upon surprise, swiftness, and the confusion and terror that his troops aroused as they fell suddenly on their enemy: their gleaming machete blades brandished on high and fierce war whoops piercing the air. Maceos battalions always freed the slaves when they captured sugar mills, encouraging them to join the rebel army by emphasizing that abolition was a major goal of the independence struggle. However, Cà ©spedes believed in gradual emancipation, contingent on the success of the insurgence against Spain. He wanted to appease slaveholders and bring them over to the rebels side without forcing them to choose between slavery and independence. Although he eventually came to believe that slave abolition was crucial for independence, conservative forces (particularly landowners) within the insurgency disagreed and this came to be a particularly divisive issue among rebels. Dominican-born Mximo Gà ³mez, who had become the leader of the rebel army in 1870, realized in late 1871 that in order to win the war, the rebels would have to invade western Cuba, the richest part of the island, where the largest sugar mills and majority of slaves were concentrated. Just as Abraham Lincoln eventually understood that freeing U.S. slaves via the Emancipation Proclamation was the only way to disrupt the Confederacys economy by depriving it of its labor force, Gà ³mez recognized the need to induce slaves to join the rebels struggle. It took three more years for Gà ³mez to convince Cà ©spedes and the rebel government to take the war to western Cuba with Maceo as a key leader. However, conservative elements spread slander about Maceo, stating that his tactic of freeing slaves would result in another Haitian Revolution, where black people would take over the island and kill white landowners. Thus, when Gà ³mez and Maceo arrived in the central province of Las Villas, the soldiers there refused to accept Maceos orders and he was called back to eastern Cuba. The rebel government ended up going back on the agreement to invade the west. By 1875, the rebel army controlled the eastern half of the island, but dissension within the rebel government continued, as did racist rumors about Maceo favoring black soldiers over white ones and wanting to form a black republic. In 1876 he wrote a letter rebutting these rumors: Neither now nor at any time am I to be regarded as an advocate of a Negro Republic or anything of that sort...I do not recognize any hierarchy. In 1877 a new Spanish commander entered the war. He went on the offensive against the rebel army, sowing dissension in the ranks and reinforcing racist lies about Maceo. In addition, Maceo was seriously wounded. In 1878, the president of the rebel republic, Toms Palma Estrada, was captured by Spanish troops. Finally, on February 11, 1878, the Treaty of Zanjà ³n was signed between the rebel government and the Spanish. Slaves who were freed during the war were allowed to maintain their freedom, but slavery was not abolished and Cuba continued to be under Spanish rule. The Baragu Protest and Guerra Chiquita (1878-1880) In March 1878, Maceo and a group of rebel leaders officially protested the treaty in Baragu and refused to sign it, even though he had been offered a large sum of money to accept it. He then left Cuba for Jamaica and eventually New York. General Calixto Garcà ­a, meanwhile, continued to encourage Cubans to take up arms against the Spanish. Maceo and Garcà ­a met in Kingston, Jamaica, in August 1879 to plan the next uprising, La Guerra Chiquita (The Little War). Maceo was in exile and did not participate in La Guerra Chiquita, which was led by Garcà ­a, Maceos brother Josà ©, and Guillermà ³n Moncada. Maceo survived various assassination attempts by the Spanish while in exile. The rebel army was ill-prepared for another war and Garcà ­a was captured in August 1880 and sent to prison in Spain. The Interwar Years Maceo resided in Honduras between 1881 and 1883, during which time he began to correspond with Josà © Martà ­, who had been in exile since 1871. Maceo moved to the U.S. in 1884 to join the new independence movement and, along with Gà ³mez, secure financial support for a new uprising. Gà ³mez and Maceo wanted to attempt a new invasion of Cuba right away, while Martà ­ argued that they needed more preparation. Maceo returned to Cuba for much of 1890, but was forced to go into exile again. In 1892 he returned to New York and learned of Martà ­s new Cuban Revolutionary Party. Martà ­ viewed Maceo as indispensable for the next revolutionary expedition to Cuba. The War of Independence (1895-1898) and Maceos death The War of Independence, the final struggle for Cuban independence, began on February 24, 1895 in eastern Cuba. Maceo and his brother Josà © returned to the island on March 30, with Martà ­ and Gà ³mez following a few weeks later. Martà ­ was killed in his first battle on May 19. Understanding that a failure to invade western Cuba was the cause of defeat in the Ten Years War, Gà ³mez and Maceo made this a priority, and began the campaign in October. As he moved westward, Maceo gained the respect and admiration of both black and white rebels. Although western Cuba had supported Spain during the Ten Years’ War, the rebels were finally successful in invading Havana and the westernmost province of Pinar del Rà ­o in January 1896. Spain sent General Valeriano Weyler (nicknamed the Butcher) to take over the Spanish forces, and his primary goal was to destroy Maceo. Although Maceo won several victories over the course of the year, he was killed in battle on December 6, 1896 in Punta Brava, near Havana. Legacy Gà ³mez and Calixto Garcà ­a continued fighting successfully, largely due to Gà ³mezs strategy of torching sugar mills and disrupting the colonial economy. Although it was ultimately the sinking of the USS Maine in February 1898 and the consequent intervention of the U.S. and Spanish-American War that led to Spains defeat, Cubans had all but achieved independence by then, largely because of the skill, leadership, and courage of Antonio Maceo. No independence leader was more committed to the abolition of slavery than Maceo, nor was any other leader as reviled by Spanish forces and targeted by their racist propaganda. Maceo understood that Cuban independence would mean nothing if his Afro-Cuban compatriots remained enslaved. Sources Foner, Philip. Antonio Maceo: The â€Å"Bronze Titan† of Cuba’s Struggle for Independence. New York: Monthly Review Press, 1977.Helg, Aline. Our Rightful Share: The Afro-Cuban Struggle for Equality, 1886–1912. Chapel Hill: University of North Carolina Press, 1995.

The WBS 2 module Essay Example | Topics and Well Written Essays - 500 words

The WBS 2 module - Essay Example However, there were difficulties during the report-writing stage, especially when it came to choosing the scenario that would be discussed, all the while ensuring that the report was objective. In addition, accessing relevant journals and texts was difficult, especially when multiple sources were involved. The peer assessment feedback was a big help since it enabled the group and I to identify areas, which we needed to improve on. When I had to work on my portfolios by myself, I also faced various challenges, including time management. Moreover, while some of the instructions seemed straight-forward in the beginning, I realized that my tutor meant to improve my research ability, as well as ensure that I had an adequate objectivity level as opined by Hill. The tutor made it clear that any arguments used would have to be supported by valid references and/or explanations, which meant that I had to correct some of my text until I presented satisfactory work. Indeed, I am confident that I satisfied my module tutor’s requirements.It was challenging for me work independently, especially since the research in application of work based structure was very extensive, while, as stated, most of the sources accessed proved to be irrelevant to the portfolios. However, if I could do it again, I would seek to access my module tutor more when I came across issues that my classmates could not solve, as well. Time management is crucial in managing work based structures although I feel that was not my strongest point.

Applying the Principles of Instructional Design in E-Learning Research Paper

Applying the Principles of Instructional Design in E-Learning - Research Paper Example Naidu (2006) defines e-learning as â€Å"the intentional use of networked information and communications technology in teaching and learning† (p. 1). E means electronic that signifies the use of the internet in educating students. Furthermore, learning is an act of acquiring knowledge through reading, studying, and applying the skills to measure a person’s understanding of the subject. However, the learning process is rooted on the experiences of students when they use technology. These experiences, whether positive or negative, affect their cognitive understanding of the lessons. Negative experiences develop apprehension in utilizing e-learning, so it is the duty of instructional designer to motivate these students. This paper aims to develop a storyline that will be the basis in applying the principles of instructional design. Storyline The educational system has changed the process of learning through the use of the internet. E-learning has been promoted because it i s more effective in incorporating knowledge on students than ordinary classroom instructions. The students utilize e-mail as a method of communicating with their professor. E-mail contains the link to the instructional materials provided by the professor, which informs students to study. Online learning also includes reviews, tests, and assignments. Students allot time for the application of their learning and professor encourages them to meet the deadline. This method is advantageous to students because they could access their study materials anywhere provided that there is an internet connection. Students living in a rural area are provided with broadband due to the difficulty in accessing their instructional materials. The common trend is that students have their own personal computers at home, while other students rent at the internet cafes. Flexibility is the main characteristic of utilizing information and technology; thus, students can study the course materials depending on their convenient time and place. It is expected that students will get high scores, but during the checking of assignments and tests, the teacher noticed that other students have low scores and only few got an average score. The teacher marvels at the poor performance of students because this reflects to the professor’s method of teaching. Thus, the professor began to study the problems of students in coping with the new method of learning. The teacher wants to find out the problem in his teaching method and begins to investigate on the negative experience that the students encountered. The questionnaires were sent via e-mail that contains the feedback and comments of students. Upon receiving the comments, the instructor discovers that the problems are focused on the instructional materials and the technical aspect. For the instructional materials, the students comment that the learning process was very boring or the materials are not interesting. Due to the monotonous feelin g of students, they never bothered to understand the concept in the text. The result is poor performance or low scores in their assignments and tests. Another comment received by the professor is the limited value of online information. The students complained that the materials are not new, which discourage them to study seriously. The professor wonders because this is in contrast with the study of Merrill (2002) that one of the principles of instruction pertains to the â€Å"