Black Is Beautiful Essay

When you hear the word black what comes to mind? Some individuals think of it as a color. Other may think of it as depressing, dismal, wicked, evil, or just a sign of hatred. My definition is the total opposite. The essence of the word black displays a strong feeling of prosperity, deliverance and all the characteristics of what us; the black people have overcome for many decades. Words can’t even describe how grateful I am to be apart of this dynamic culture. To me the word black describes a thriving culture of beautiful and unique individuals. Starting with the period of slavery the black race has suffered tremendously from harsh and cruel treatment, but we managed to overcome. The black race is responsible for the wide spread of many sub-cultures to the U. S. and around the world. For instance, in the 1920s blacks were playing jazz music in nights clubs around New Orleans. This type of music caught the attention of whites and soon spread to big cities like Chicago and New York, were there was frenzy for jazz music. In this point of time, hip-hop music has touch many people from around the world like: China, India, and even places like Kuwait. The people in these countries don’t only embrace the hip-hop music but they embrace this way of life. They go to extreme lengths; changing the tradition of how they were raised to talk, dress, and act. Pg. 2. I feel that we the black people are one of a kind in many ways. The black women are some of the most strong-mined women I know. They have this certain mentality about their selves that I just can’t get enough of. From the fullness of their lips to their nice shape hips, I adore the black women in every way. Black men are some the most athletic beings I know. I not saying that we are dominated over all races but, if you look at the NBA, NFL, and other sports like track blacks dominate in skill and numbers. At times being a man of this skin tone is hard due to stereotypes placed on the black race. We all steal, sell drugs, and kill at will. Despite these stereotypical insights that we receive from others that don’t fell the same about this beautiful race, we keep our heads up and strive for the best. Black is beautiful, no matter what anyone says. God creates all of his children the way he wishes; neither one of us are the same. We all are beautiful people no matter what race. It is just up to you to realize it.

A Singer I Admire

As we grow older, we find someone to looks up to. Some of us admire celebrities, family, and friends. I admire Andy Lau. A star of over 100 films and one of Asia's most popular singers, Andy Lau was born on September 27, 1961 in Hong Kong. He grew up in a very poor area where there was not even running water. The young Andy had to make up to eight trips a day to collect water for his family. Despite financial problems, Andy's parents encouraged him to do well in school, and upon graduating, he entered the TVB academy, where he studied acting and martial arts. After appearing on television for a couple of years, Lau moved onto films with 1982's Boat People. As was the norm for many young stars at this time, there was an attempt to diversify Lau by having him record an album. While these types of albums usually provide some extra publicity and money for the actor, for Lau they became a second career. His first album I Only Know I Love You came out in 1985 to a minor buzz. It was not until 1990, when Lau had established himself as one of Hong Kong's top actors. Lau's musical career intertwined with his acting, as he began to record songs for the movies he appeared in. Despite his success, Lau's career almost suffered a fatal flaw early on when he refused to sign a contract with TVB. Lau was blacklisted from Hong Kong television, and it was only through the intervention of Chow Yun-Fat (who was a friend of the director of Boat People, Ann Hui) that Lau began to find more work in movies. Despite having a reputation of being hard to work with, Lau continues to be one of Hong Kong's most prolific and bankable actors. In fact, there were times when Lau was so popular that he was working on multiple films as well as recording songs all at once, sleeping in his car as time allowed. This dedication to work seems to have finally paid off in one respect; in 2000 Lau won the Hong Kong Film Award for his work in Running Out of Time. In 2004, he won the prestigious Golden Horse Award for his performance in Infernal Affairs III, the sequel to the popular Infernal Affairs. Western audiences may also be familiar with his performance in the House of Flying Daggers. His singing career reached stellar status in 1990 with the release of the album entitled Would It Be Possible, and his subsequent releases only solidified his status as a marketable singer. [5] For that song, he would win his first 1990 RTHK Top 10 Gold Songs Awards. He would then win at least one RTHK award category every year consecutively until the year 2007. From Jade Solid Gold Top 10 Awards, he has won the â€Å"Most Popular Hong Kong Male Artist† award 7 times and the â€Å"Asia Pacific Most Popular Hong Kong Male Artist† award 15 times. He also entered into Guinness World Records for â€Å"Most Awards Won By A Cantopop Male Artist†. By April 2000, he had already won a total unprecedented 292 awards. Andy's success did not come easily. He is known most by insiders for his hard work and drive. Catching some sleep in his car between the midst of recording an album and making a movie is not uncommon for the singer-actor. Yet, Andy managed to excel in both games. As an actor, Andy never settled for two-bit roles or stereotypical characters who only excelled in kung fu. As a singer, Andy never seemed to be satisfied with status quo. Through the two-plus decades that Andy gave to the entertainment world, he persevered, he advanced, and he conquered. In a race to be the best of everything, Andy is the only one crossing the finish line. Andy Lau is an exemplary person. He is multi-talented actor, comedian, and even singer who has come a long way. His past amazes me and his diligence touched me. In my mind, Andy Lau is the role model which is why I admire him.

Eschatology: The Destiny of the Unsaved Essay

In answering Steve’s comment about the destiny of the unsaved certain definitions need to be dealt with along with reference made available to us and I have just what we need. Steve I understand what you have read and the comment was made from the standpoint of the author â€Å"Clark Pinnock. † However, if you will allow me to answer your questions in defining words such as; â€Å"Hades, Gehenna, Sheol, Eternal punishment, Annihilationism, Universalism, Hell and Apokatastasis. You also asked the difference between Hades and Sheol. Since we are dealing with Sotereology, Eschatology and Ecclesiology it is only fair that we reference the Word of God. Our definitions will come from Elwell Evangelical Dictionary of Theology and some citing from Towns, Theology for Today. In defining Sheol, Elwell (2001, 1099) notes,† A place where men experience rewards, or punishments that will come to them in final judgment and a place whose power cannot withstand the church. † Hades is noted as; â€Å"A grave or the place of bodily decay; a place of punishment for the wicked,† (p. 1099). Gehenna,† according to Elwell (2001, 480), is defined in this manner; â€Å"A place that shares some common ground with Hades/Sheol; however, both good and bad souls after death prior to judgment, while Gehenna is the final and everlasting place of punishment for the wicked following the last judgment. † In answering Steve’s question of the difference, if any, among Sheol, Hades, and Gehenna and the concepts that best corresponds to the traditional understanding of the eternal abode of the Wicked? Sheol and Hades best corresponds to the traditional understanding of the eternal abode of the wicked. Contrary to popular belief hell is explained in the Bible as a final place for the wicked, this will be brought out further in our discussion. As we continue on in our definitions, Elwell (2001, 395 Eternal punishment as; â€Å"One being cast into a lake of fire where the fire never goes out. † (Mark 9:43; cf. Luke 3:17). â€Å"He referred to ‘†hell,’† where the worm does not die, and the fire is not quenched. ’† Elwell (2001, 64), further defines Annihilationism as â€Å"expressing the position of those that hold that some, if not all, human souls will cease to exist after death. Our next word is Universalism, Elwell (2001, 1232), defines the word as; â€Å"That doctrine which asserts that all men will eventually be reconciled to God. Universalist believes that the efficiency of the Atonement is not limited and therefore extends to all. † Furthermore, Elwell, (p. 548) states Universalist also believe that all will eventually go to heaven. † Elwell, (2001, 547) further defines Hell in a general sense, he notes; â€Å"Hell is used in Scripture to [describe] or refer to a place of future punishment for the wicked. As we have elaborated on the more detrimental states of eschatology there is another state that is quite attractive to the theologian and media evangelist. This state is better known as the Intermediate State, Elwell, (2001, 608 – 609), defines this as; â€Å"The period between death as an individual phenomenon and the final judgment and consummation. If Christian thought held to not final state of affairs for all creation, then perhaps ones final situation could be conceived as being settled at death. Elwell further include the theory of Purgatory; you will not be lost, yet God will be just. At the present time, with much awareness of life as a process or evolution, purgatory has also allowed for speculation about continued development of the soul. As such, it continues to be attractive for some in a greatly modified form. † Lastly, Elwell, (2001, 81), defines the Apokatastasis, he state that; â€Å"Jesus must remain in heaven until the time comes for God to restore everything, as He promised long ago through his holy prophets. Further, Elwell states that most evangelicals, while insisting on an eschatological restoration by Christ, deny the corollary assertion of the ultimate salvation of all humans. Now that we have defined the terms necessary, let me give you my understanding of the destiny of the unsaved from a biblical stand point as well. My understanding is that â€Å"Gehenna† or the â€Å"Lake of Fire† is prepared for the Devil and his angels, consequently the â€Å"Wicked,† or â€Å"Unsaved† after the â€Å"Great White Throne Judgment† will be cast into hell where they will spend â€Å"eternal punishment. † (Matthew 25:41, 46; Revelation 20:12-15). Towns (2008, 795) notes; â€Å"All those who are judged at the Great White Throne are consigned to hell because they have rejected God. Hence], The Great White Throne Judgment will determine the degree of punishment the rejecters will endure, based upon the nature of their evil work. † Furthermore, in my research the most common objection comes from many sources, however the objections used for an our example is that of the Universalist. Elwell (2001, 1232), notes; â€Å"Universalism is that doctrine which asserts that all men will eventually be reconciled to God. A Universalist believes that the efficiency of the Atoneme nt is not limited and therefore extends to all. † Furthermore, Elwell, (p. 548) notes, â€Å"Universalist also believe that all will eventually go to heaven. [The Scriptures biases for this belief are as follows]: (1 John 2:2; Philippians 2:10-13; 2 Peter 3:9; Romans 11:32; 2 Timothy 2:4). † Now Steve, there are many that may not share my point of view and that’s common in religious society. However, In responding to objections one has to point out that when Christ returns it will be for a â€Å"church without a spot or a wrinkle,† (Holy Bible, Ephesians 5:27). This does not mean that God does not love everyone, it simply means that He will save those who have answered his call to salvation (Holy Bible, John 3:16-21). All of this can be summed up in one word â€Å"Atonement. Elwell notes (2001, 114), â€Å"This truth is repeated, and enlarged upon in the NT, where it is made clear that all are sinners (Romans 3:23) and that hell awaits them (Mark 9:43; Luke 12:5). But it is just as clear that God wills to bring salvation and that He has brought it in the life, death, resurrection, and ascension of His Son. The love of God is the mainspring (John 3:16; Romans 5:8). We are not to think of a loving Son wringing salvation from a just but stern Father. It is the will of the Father that all be saved, and salvation is accomplished – not with a wave of the hand, so to speak – but by what God has done in Christ. In reconciling the idea of hell and eternal punishment one has to understand the offer that Christ made to all mankind, (Holy Bible, John 3:16; Romans 10:9-17; Ephesians 2:1-22). Not only did God make the offer, but he also gave the consequence if one did not except Christ. God does not make our decisions for us; however, He has made a way of escape from sin to eternal life through His Son Jesus Christ. What is the impact that my view of hell has on evangelism/missions? The impact that my view has on hell and getting the word out to all that will hear is to know that we all have a decision to make as for as our eternal destination. We can choose heaven or hell the choice is ours as individuals. The impact that I would like to make from this point on is to paint a picture such as explained in Towns, Theology for Today (2008, 802), â€Å"The Millennium will fulfill all the biblical desires that have been expressed towards it (Hebrew 11:10). That which brings joy and fulfillment to life will be included in the kingdom. Those things which produce sorrow or discomfort in life will be excluded from the kingdom of God. †

Echo-planar Imaging in Magnetic Resonance Imaging Essay

Echo-planar Imaging in Magnetic Resonance Imaging - Essay Example However, EPI can be very intolerant and the system needs careful selection of parameters. Echo-planar imaging is the fastest and most supple means of MR imaging nowadays. It offers substantial autonomy in the assortment of the parameters needed for contrast and resolution. However, according to the process, the system of formation of the images works close to its confines of performance depending on amplitude of the gradients and the number of times it rises, the stability in the structure and general stature of the noise formed and, thus, proves to be a difficult method. Even so, the advantages of EPI in â€Å"functional neuroimaging† have increased its demand and provide technological development (Cohen, 2000, p.15). The present study focuses on the concept of EPI in MRI and discusses the method, its working, the issues of image ghosting, its disadvantages, its sensitivity, as well as clinical benefits. BLIP EPI Method Echo-planar imaging (EPI) is skilled to considerably cut down the times of magnetic resonance (MR) imaging. It allows getting hold of representations within a timeframe of only 20–100 msec. This particular resolution of time enables successful elimination of motion-related relics. Consequently, it becomes possible to achieve imaging of rapidly changing physiologic processes.  In order to understand the basic principles and working of the method, the understanding of k space theory is necessary. K space is a realistic medium of data where the MR imaging is in a digitized form and represents the picture before â€Å"Fourier transform analysis†. All points in k space contain data from all locations within an MR image. The Fourier transform of k space is the image† (Poustchi-Amin et al, 2001, pp.767-779). While studying the working of echo-planar imaging, it is helpful to put the usual spin-echo (SE) imaging side by side. In pulse progression of a SE, a single line of the data of representation, which is actually a sing le line in k space or a single stride of encoding a phase, is composed in every time of repetition (TR) period. Then the series of the pulse is continued for numerous times of TR in anticipation of all the steps of encoding the phase, collection and filling the k space. As a result, the time of imaging becomes equal to the creation of the TR, as well as the number of phase-encoding steps (Poustchi-Amin et al, 2001, pp.767-779). As compared to Fast Spin Echo (FSE), the gradient refocused echo in EPI adds a single line in the area of k-space. The direction in which line is read is altered by the positive and negative read gradients. A shift in k-space occurs through the presence of the phase blip that occurs between the echoes. This is the method known as blip EPI. The spins are excited once in the process of EPI and the pulses between the echoes do not involve any 180 degrees RF. If there is a spin echo EPI sequence, a large positive phase may be used that encodes the gradient if it does not reach the 180 ° degree pulse. Gradients are used by EPI, having both a negative and positive polarity, such that both odd and even echoes may be produced. The contrast in EPI can be restricted by varying the preliminary preparation of the echo from a spin echo to a gradient echo, or by the use of inversion recovery (Module 1, pp.7-16). In the process of echo-planar imaging, several lines of information related to the picture are achieved following a

Evidence based practice Assignment Example | Topics and Well Written Essays - 1250 words

Evidence based practice - Assignment Example In addition, through literature review McMillan and Small (2007) obtained various information and concepts regarding creation or development of a better research design. McMillan and Small (2007) describe the research design as a three-group comparative design with repeated measures in a bid to attaining their objective whilst answering the main research question. In their bid to obtaining sufficient data, McMillan and Small (2007) confirm that their research design is a clinical trial. Participants were drawn from a large non hospice in which the researchers claimed that patients received proper home care. McMillan and Small (2007) used an experimental study to obtain sufficient data to find answers to the research question. Experimental study engages different researchers in obtaining sufficient data to make proper conclusions on the subject of discussion. The evidence showing that this journal is a peer-reviewed article is the indication that after about 6 to 8 weeks editorial committee of the journal engages in serious review of the articles produced. The journal of Oncology of Nursing has an editorial committee headed by Susan Moore. This editorial committee ensures that there is a production of the articles or journal twice every month. 7) Is there evidence of any conflict of interest that might introduce bias into the way the study is designed, or the way the results are viewed? Do the authors have any potential financial gain from the results of this study? From the article, there is no evidence of conflict of interest between the authors. This is because each author of the article is determined to obtaining the research objectives and answering the research questions. Therefore, there will be little room for the tow authors to have a conflict of interest. The authors have possibility of obtaining financial gain from sale of the journals containing their

Impact of Financial Aid on Educational Environment Dissertation

Impact of Financial Aid on Educational Environment - Dissertation Example Also, the importance of education, particularly, that of college education has been discussed shortly at the beginning of this paper. Furthermore, how racial differences can hinder the process of acquiring financial aid by African American students has also been discussed. Table of Contents Abstract 2 Table of Contents 3 Introduction 4 Literature Review 5 Introduction Many students ask this question when they are about to graduate from high school that why it is so important for students to acquire higher education. It certainly is since it provides a number of opportunities to people who wish to raise their standards of living and excel in their respective field of education. Higher education is an outlet to various opportunities and therefore its importance cannot be denied (Wilkinson, 2005). Going to college expands the horizon for students as they advance from lower educational level to higher educational level and experience a more broadened aspect of everything they have been s eeing all their lives up till now. College lets a student learn more than just from books. It allows students learn from the excellent experienced professionals creating a remarkable experience in learning and acquiring the right set of attributes to excel. If we think beyond the job aspects of acquiring higher education it is quite important for our own development as well. It lets us be a better person in our society and helps us educate people around us (Wilkinson, 2005). Though acquiring higher education can be difficult, it is not impossible. Many financial aids program help in this regard. What we need to understand is that are these financial aid programs, in any way, affecting the student’s educational environment. There could be varying answers to that. This paper gives a detailed review of how these financial aid programs can affect student academics. How financial aids vary from one another according to the needs of the students and are it true that financial aid p rograms depict a bitter reality of our society, portraying the ugly picture of racism. These questions lead to a deeper analysis of whether choosing to have something better in life would free a student from discrimination and differences that are built on part of these institutions. How students can have several problems related to choosing for the right program and applying to it. Many students are found to have face problems in following the instructions. This could be a major hindrance in achieving their goals. This paper also explains how academic performance of a student can greatly affect his receiving of financial aid from his own institution or federal ones. Altogether, these are various circumstances and conditions, which directly and indirectly affect the process of acquiring financial aid for a college student. Some of these factors conceive further hidden factors that are considered taboo, people do not want to talk about it, people want to hide it, but the reality rema ins in its place. This paper also includes the types and categories, which are designed for individual students to accommodate their requirements. Literature Review Economy regulates one’s life. How it is supposed to be lived, economy decides as it steers people into a direction where they can survive. Henry David Thoreau (1996) explains in his book how economy has changed the way men used to live, â€Å"But lo! Men have become the tools of their tools. The man who independently plucked

Business Support System Research Paper Example | Topics and Well Written Essays - 750 words

Business Support System - Research Paper Example Marketers are able to communicate to their target market by use of appropriate, interesting and real ways that customers are elated about and also that entertain them thus persuading them to respond to the offer in the market. This way, promotional programs that are more appealing can be devised that ultimately elicit encouraging returns. This is the reason why marketers would go for augmented reality as it suits and allows smarter interaction with the immediate environment. Augmented reality has come in handy in real estate since by use of technology someone can locate a house for sale by the use of a phone. This is very practical and saves a lot of time since there is no need of searching for that information manually. Augmented reality has even some more applications in the real world. For example technology can be embraced to derive a way through which a customer can be permitted to visualize the contents of a product without having to actually open it. This will therefore motiva te customers who in turn will be tempted to try the product leading to possible impulse buying. Engineers can utilize augmented reality to have a taste of their products operation even before the actual launch something that will give room for more improvement on the product before the buyers use it. Case Study Two The general trend in the market seemed to nose dive leading to uncertainty in almost all other sectors the economy. The prevailing market conditions in 2010 triggered the downward trend of activities in the investment arena (Alison, 2008). The aspect of the debt that European held also had an immense influence on the way investors made their ultimate decision regarding their patterns of investing. The confidence of investors was also ruined by the fact that no one had the surety that Greece could be in a position to settle its debts something that everyone was looking up to. All these uncertainties led to the stagnation of the economy thus leading to the collapse of figur es of many industries that are the economic engines of the country. These events are the precedents of the flash crash that took place shortly after. The benefits of electronic trading are explicit in the market even today. These have far reaching advantages compared to brokers who are basically human. In the electronic trading for example, trading activities are done with accurate speed hence reliability and effectiveness is guaranteed. Moreover, brokers and other concerned agents tend to charge exorbitant fees to deliver on some activities something that may cripple the entire process. Therefore the electronic trading system comes in handy due to its reduced costs involved that help increase on the returns. The other hand efficiency is guaranteed by this system since buyers and sellers can be satisfactorily matched. There are some factors related to the electronic trading programs that contributed to the crash. This is a very unfortunate occurrence since a lot of utility was expec ted to be derived from these systems. There was a total imbalance and distortion of prices as their execution would be done with no regard to any price or time thus as selling continued prices dropped sharply. The effect of this is that what is there on offer to the market has to be sold aggressively to counteract bad prices that could bring huge losses. All these complicated processes frighten

Civilization in China according to the Bodley Profile of Imperial Essay

Civilization in China according to the Bodley Profile of Imperial Cultures - Essay Example The Chinese civilization is described by the author as for where the domestic put in order into the ethnic group or when people systematize into empires and realm, the comparative disparity amid leaders and common herd relics invariable on a very normal level. On the other hand, the sum of authority and the importance of possessions detained by leaders of China detonate at the same time as the poor knowledge more and more immense dissimilarity. The authority of the Chinese people increases the level and also gives particulars on the superior point of stratification within additional multifaceted civilization. The author however does suggest that in Chinese civilization when the Kingdom and the inequality between the rich and the poor existed that was not right and with the intention of to make the world of evenhandedness and equal opportunity the Chinese people tried to construct optimal-scale civilization, which contained a degree of space among, deprived and wealthy. The Chinese civilization has been defined by a lot of people in a lot of different ways. Chinese evolution consisted of a hodgepodge of quite a lot of militaristic states; each one of them was faint by a king, duke, marquis, or else earl. Even though there was the main king who apprehended supposed authority, and influential control from time to time held by substantial power, every state in China was faint as a self-governing opinionated body. The Chinese civilization was at that time at the early stages of Confucian attitude in addition to that of a lot of other viewpoints that very much was predisposed Chinese way of existence or political consideration. China was one of the solitary states where the most basic middle of human civilization. China was one of the most highly developed civilizations in the human race in skill, prose, and ability, even though revolutionize was extremely slow but sure and taken at the edge off by Imperial authority.  

What cause(s) is the National Liberation Front (FLN) fighting for as Essay

What cause(s) is the National Liberation Front (FLN) fighting for as depicted in the film Would you characterize the FLN as a terrorist group, or as something else - Essay Example The depiction of war in this film reflects the root cause of war, like they occur in other places. Wars normally arise out of ideological differences driven by social, economic and political circumstances. In Battle of Algiers, just as the name the war was driven by the desire of the Algerians to drive the French from their country. The French colonized Algeria during the time when most Western European countries looked for colonies to safeguard their political and economic interests. The Algerians also sought to meet their social, economic and political rights that were not tenable with French in their country. As result of conflicting interest, the Algerians formed different movements and the most predominant one was the FLN. On the other hand, the French felt threatened and therefore had to crush the FLN before it became powerful. Like any other war in history, the unfair treatment of combatants deepened the motivations of the sympathizers of either side and that increased the war fare (Prochaska, 2003). This war film depicts the events that took place in Algeria war against the French Colonialist between the years 1954 and 1962. Like many other countries that were fighting colonial regime, the Algerians decided to coalesce and form the National Liberation Front. It was the understating of the people, at least according to the movie, that they had to form a formidable force through which they would battle the French especially the army and the police who were used by the French government to infringe on them. It inferred from the movie, that the cause is liberation of the country from the French rule but some actions of the FLN members is questionable given the high blood letting tendencies (Parker, 2007). Equally members of the FLN have questionable character. For example, one character Ali La Pointe decides to join the movement. However, his character is ragged given that he had been taken to a reform school in early life.

How does work Guide the Development of the Self Essay Example for Free

How does work Guide the Development of the Self Essay In man’s existence today, various concepts exist which if learnt and adhered to, can change the very quality of life itself. This is admirably conveyed by Emerson in his essay on self reliance and also deduced from chapters seven and eleven of Thoreau’s book on Walden. In chapter seven, the author narrates the story of an impoverished farmer who toils on his farm from sunrise to sunset, while in chapter 11, Thoreau dwells on the qualities of the inner person. After reading these essays, one is convinced that the most important attribute in life is that which is gained from knowledge of our true being as intended by the creator. Beginning with Emerson’s work, self trust is shown to be the key to self reliance because man’s true nature is that which is within him. We are all individuals in the eyes of providence, each with our own place which we must learn to accept and respect. It is only when we exercise self trust in the abilities given to us, that we will be able to improve as human beings. The author goes on to say that when we cultivate a respect for ourselves, we reject that which is external and which we spend every waking moment looking for. What is important is not the acquisition of material wealth, but rather, internal spiritual wealth. It is only when we place our faith in GOD, who is the most trustworthy and sits in our heart, that we gain self trust. He then works through our hands and predominates our beings. When you are in conformity, this undercuts your self reliance because it scatters your forces, and the real you cannot be detected. You tend to do things as everybody does. It is therefore important to be your own individual and your uniqueness will be evident. Consistency, on the other hand, enslaves us to our pasts because we are constantly judging our present with 2 tandards from the past. We fear to be contradicted by our peers and are therefore less and less self reliant. Self reliance is evident from the bean field chapter of Thoreau because the farmer was rewarded for his hard work with a harvest of twelve bushels. He did not have the benefit of modern farm implements or labor, yet he loved his work and was rewarded for it. This is a demonstration of self reliance born out of necessity. Instead of discouragement at the prospect of toil, the farmer confronted the ordeal happily and with spiritual calm. Additionally, he gained much more than money. He earned the respect of his neighbors, confidence and experience from his work. John Fields is another impoverished farmer who has a wife and a family to feed. Unfortunately, he is in a situation where survival dictates that he works for a wage as someone’s employee. For this very reason, he cannot be self reliant. Additionally, in order to change his lifestyle, he faces the prospect of being unable to afford the necessities of everyday life, for example, tea, coffee, meat and clothes. He also seems unable to find the time to contemplate his spiritual wellbeing which may help him look at his life afresh. However, the concepts conveyed by Thoreau’s higher laws can prove invaluable to him. One of them is that, â€Å"Man flows to GOD when the channel of purity is open†. This means that Fields must seek GOD who will give him an inner calm. This will enable him to identify that for which he is best suited to do and treat himself with respect. Additionally, he will be able to find that which identifies him as an individual, thereby helping him to excel. The kind of wealth that is described in Emerson’s â€Å"wealth† essay is very foreign to John Field’s understanding. According to Emerson, wealth is the application of mind to nature. This requires that one draws a benefit from the labors of the greatest numbers of men, and also do what his creator intended him to do. Unfortunately, Fields is a laborer who is employed on a wage. He does not even understand the concept of business, let alone begin to fathom how he can employ others. Additionally, he may be in the wrong career and needs to re-evaluate it if he is to enjoy the fruits of a better lifestyle. When Frederick Douglas goes to the north, he discovers that work, unlike in the south, is done with pride and actually creates wealth without the need for slave labor. It also dawns on him that freedom of the mind is the perfect breeding ground for economic progress, which he sees in even former slaves. Additionally, with a free mind comes the possibility of improving the intellect through reading. The common thread running through these readings is that the mind and spirit come first before the body. Nature can only be conquered by the spirit and the best way to enrich the spirit is by accepting that GOD has a purpose for each and every one of us. He has given us individual qualities which we must strive to nurture. We must recognize these qualities and use them according to his will. If we do not see the advantage within our hearts, then we will, as individuals, continue to move in a crowd, and our uniqueness will not help us or humanity. Wealth is first and foremost, that of the heart and spirit.

Multiferroics: Explanation of Types and Plants

Multiferroics: Explanation of Types and Plants Chapter 2 Multiferroics 2.1 Introduction to Multiferroics: H. Schmid used the term multiferroic for the first time in 1994. Those materials which combine multiple ferroic properties such as ferromagnetism, ferroelectricity and ferroelasticity are known as multiferroics. Simultaneous coexistence of at least two ferroic properties takes place in the same phase in multiferroics. It has the feasibility of exhibiting coupling between ferroelectricity and magnetism which is known as the magnetoelectric effect (ME). This ME enables the external electric field to change magnetization [1]. Each multiferroic property is closely connected to symmetry. The principal ferroic properties can be characterized by their behavior under time and space inversion. For example the direction of polarization P is reversed by Space inversion while leaving the magnetization M invariant. In turn, time reversal will change the sign of M, while the sign of P remains invariant. A simultaneous violation of space and time inversion symmetry is required by Magnetoelectric multiferroics [2]. There are also various potential applications of multiferroic such as information storage, spintronics, sensors and microelectronics devices in the field of material science due to the presence of strong coupling of electric, magnetic and structural order parameters. These parameters gave rise to simultaneous occurrence of ferroelectricity, ferroelasticity and ferromagnetism [3]. Application of magnetic field can induce intrinsic polarization and application of external electric field can induce magnetization in any magnetoelectric compound. Apart of industrial application, these coupling of properties in magnetoelectric compounds makes them important from physics point of view because of their enriched physical properties. However very few materials shows both these ferroic properties at or above room temperature [4]. Two fundamental forces of nature are magnetism and electricity. Combination of these two properties in a single multiferroic material is applicable for many practical applications such as they can be used as magnetic sensors in which the sign of their electric polarization changes with a small magnetic field. These effects are important to understand as multiferroics are not only quite rare but their properties also helps to develop materials where these effects are suitably strong for applications. A beam of x-rays are used to study the magnetic properties of multiferroics. The electronic states of the iron ions in the crystal are specifically probed by the x-rays which are related to its magnetic properties. This experiment reveals that these electronic states extend throughout the material in a periodic manner. It breaks the crystal symmetry and leads to a shift of the electrically charged atoms in the crystal which is responsible for multiferroic properties. Each iron atoms is surrounded by a symmetric arrangement of oxygen atoms and the magnetic moments of the iron atoms are in disorder at room temperature whereas the magnetic moments are assumed to have the shape of a screw at low temperatures. The energy of the chemical bonds are slightly altered by each magnetic moment in the crystal which depends on the relative orientation between the chemical bond direction and the magnetic moment. The resulting force distorts the crystal structure which leads to an electric polarization [5]. Recently, multiferroics due to their potential properties such as comprising of ferroelectric and ferromagnetic ordering in elastically distorted systems have drawn a major attention of researchers for fabrication of magnetic and ferroelectric devices. High dielectric constant, low dielectric loss, high temperature phase transition and small structural distortion occurs mainly due to the electric, magnetic and stress field applied on the materials for multifunctional applications. In the process of development of new materials, many novel materials have been detected for different purposes due to their useful and interesting properties [6]. 2.2 Types of Multiferroics: Multiferroics can be divided into two groups: Type-I Multiferroics2) Type-II Multiferroics Type-I Multiferroics: This type of multiferroics are older, more numerous and are good ferroelectrics. Above room temperature, the critical temperatures of the magnetic and ferroelectric transitions can be well. In these materials, the coupling between magnetism and ferroelectricity is unfortunately weak [14]. Different origin of ferroelectricity and magnetism in type-I multiferroic are mostly due to different active subsystems of a material. There is a certain coupling between breaking time reversal symmetry, breaking spatial inversion symmetry, ferroelectric order parameter, magnetic order parameter in such type-I multiferroics. In these materials, ferroelectricity can have a number of possible microscopic origins [7]. For example: BiFeO3 with the ferroelectric transition temperature Tc higher then the Neel transition temperature TN. [8] Type-II Multiferroics: Due to the recent discovery of a novel class of multiferroics, there is the biggest excitement as ferroelectricity exists only in a magnetically ordered state and is caused by a particular type of magnetism. A nonzero electric polarization occurs in the low temperature phase [14] . For example CuFeO2 with Tc = TN [15]. The magnetic and/or electric polarization of the barrier controls the current driven through a magnetic tunnel junction (MTJ) with a multiferroic tunnel barrier. Multiferroic tunnel junctions is referred to the junctions with a multiferroic tunnel barrier. The use of a multiferroic material as a tunnel barrier and ferromagnetic materials as leads in MFTJs would lead to 8 possible resistive states of such junctions [9]. Figure 1.3: Multiferroic tunneljunction (left) and eight resistive states that it provides (right). The ferroelectric polarization is depicted with the black arrow; the white arrow stands for the magnetization. Cupric Ferrite (CFO): type-II multiferroic has attracted increasing attention due to the recent discovery of ferroelectricity in the first magnetic field induced phase. It is considered as a distinct class of magnetoelectric (ME) multiferroics [10]. Magnetic field induced generates a spontaneous electric polarization parallel to the helical axis in delafossite compound CuFeO2 [11]. Delafossite crystals have general formula ABO2, where A represents cations which are linearly co-ordinated with two oxygen ions and B represents cations, situated in distorted edge-sharing BO6 octahedra [12]. The materials possesse R m space group and have found very useful device applications because of different properties such as superconductivity, large magnetoresistance, thermoelectric effects and multiferroicity [13]. It has Hexagonal crystal structure. Figure 1.Crystal structure of CuFeO2 with the hexagonal unit cell [14] These effects make them potential candidates for device applications in such kind of multiferroic materials. CFO was first discovered by Friedel and Hebd12 in 1873 and it is considered to be one of the promising materials of this group [15]. CFO was broadly studied in past decade due to its pleasing antiferromagnetic properties at liquid helium temperatures. Numerous magnetic phase transitions and multiferroicity due to geometrical frustrations at low temperature are seen by this antiferromagnet on a triangular lattice [16, 17, 18, 19]. The delafossite structure of CFO consists of hexagonal layers of Cu, O and Fe accumulated with a Cu-O-Fe sequence along the c-axis in order to form a layered triangular lattice antiferromagnet. It is a p-type semiconductor with low conductivity ÏÆ'=1.53 53 S/cm, high Seebeck coefficient S=544 V/K, and a small bandgap of 1.15 eV. The electrical and optoelectrical properties of CFO were explored by by Benko and Koffyberg [20, 21]. By combining two of the fundamental forces of nature i.e magnetism and electricity in a single multiferroic material in which one controls the other is not only of basic interest, but also significant for practical applications. Multiferroic materials can also be used as magnetic sensors in which the sign of their electric polarization is changed with a small magnetic field. A new mechanism has been verified after studying the properties of the multiferroic CuFeO2 by which magnetism and electricity can be coupled in a single material. Magnetism and ferroelectricity are coupled in different ways in multiferroics. Apart of multiferroics being quite rare, a better understanding of their properties is essential as it helps to develop materials where these effects are suitably strong for applications. the magnetic properties of CuFeO2 using a beam of x-rays were studied by the researchers. This study reveals that these electronic states extend throughout the material in a periodic manner which is directly responsible for the multiferroic properties as it breaks the crystal symmetry and leads to a shift of the electrically charged atoms in the crystal. Each of the iron atoms is surrounded by a symmetric arrangement of oxygen atoms and the magnetic moments of the iron atoms are in disorder at room temperature. The energy of the chemical bonds is slightly altered by each magnetic moment in the crystal which depends on the relative orientation between the magnetic moment and the chemical bond direction. The crystal structure is then distorted by the resulting force which leads to an electric polarization [22]. Several routes for the synthesis of multiferroics are being applied such as solid state synthesis hydrothermal synthesis, sol-gel processing, Sol-Gel autocombustion, vacuum based deposition, floating zone [23]. In the present study, modified Sol-Gel autocombustion technique is used. Processing techniques influence the physical properties and the ideal synthesis techniques provide superior control over the parameters such as crystallite size, distribution of particle sizes and interparticle spacing which have the greatest impact on the magnetic and other properties [24, 25]. In present work we have adopted sol-gel auto-combustion technique because of some advantages over other methods like the reagents are simple compounds, special equipments are not required, agglomeration of powders remains limited and dopant can be easily introduced into the final product. The properties of the final product such as particle size, surface area and porosity depend on the method of combustion [26, 27] 2.3 Plants: According to the literature reviews, various microorganisms such as fungi, yeasts algae and bacteria are used for the biosynthesis of nanoparticles but presently a new trend has come to force the use of plants for the fabrication of nanoparticles because of its spontaneous, economical, eco-friendly protocol, suitable for large scale production and single step technique for the biosynthesis process [28]. The major mechanism examined for the synthesis of nanoparticles mediated by the plants is due to the presence of phytochemicals which are responsible for the spontaneous reduction of ions are flavonoids, terpenoids, carboxylic acids, quinones, aldehydes, ketones and amides [29]. The botanical details about the currently used flowers for the study of synthesis of Cupric Ferrite are as follows: Delonix Regia [30] Rosa indica: [31] Vinca [32] Hibiscus [33] Jasmine [34] Euphobia milli [35] Alamanda [36] References [1] I. E. Dzyaloshinskii, Sov. Phys. JETP 10, 628 (1960). [2] Hill, J.Phys. Chem. B 104, 6694 (2000). [3] M. E. McHENRY and D. E. LAUGHLIN, Acta mater. 48, 223, (2000). [4] Samar Layek* and H. C. Verma,Adv. Mat. Lett. 3(6), 533 (2012). [5] Tanaka, Y., et al. Incommensurate orbital modulation behind ferroelectricity in CuFeO2, PHYS REV LETT. 109, 127205, (2012). [6] Jyoshna Rout, R. Padhee, Piyush R. Das and R.N.P. Choudhary, Adv. Appl. Phy. 1 105, (2013). 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