Mitochondria and Its Functions Essay Example | Topics and Well Written Essays - 500 words

Mitochondria and Its Functions - Essay Example The present paper has identified that mitochondrial chromosomes are inherited from our mothers.  Although minutely small, mitochondria are of major importance to athletic activities because the increase in their density is associated with enhanced performance capacity ("Mitochondria Functions" n.d. para. 1).  To answer the question on which between a world-class runner and a typical couch potato would have a much higher density of mitochondria from their sample muscle biopsies, it would definitely be the world-class runner because mitochondria are concomitant with exercise and physical activity.  Furthermore, mitochondria are the only places inside the muscles where carbohydrate, fat, and protein can be broken down in the presence of oxygen to create the energy needed for exercise. As a consequence, the more mitochondria an individual has, the more energy that individual can generate during exercise resulting in faster and longer time doing running, swimming and other physical activities ("Mitochondria Functions" n.d. para. 2).  Several studies have been done to document or otherwise prove that increased exercise generates a higher density of mitochondria. There are differences from these findings as to what type of physical activity generates more mitochondria such as intensity, faster but shorter duration or longer but slower duration. There are three types of human muscles: the cardiac, smooth and skeletal. The skeletal muscle is further classified into three types, which are the Type I, Type IIA and Type IIB fibers. Type IIB Fibers are white and geared to generate ATP or Adenosine triphosphate—an important carrier of energy in cells in the body—that is not able to supply skeletal muscle fibers continuously with sufficient ATP and have a fast concentration velocity. Type IIB fibers are found abundantly in the muscles of the arms (â€Å"Muscle†, n.d.). In one of the studies dealing with mitochondria, researchers were able to differentiate its effects depending on the type of muscle.

Conformed Dimension Essay Example for Free

Conformed Dimension Essay Conformed dimensions are a crucial component of the successful dimensional design. With the right dimension design and content, it is possible to compare facts from different fact tables, both within a subject area and across the enterprise. They can do more than enable drilling across; they serve as the focus for planning enterprise analytic capability. Dimensional design is usually implemented in parts. Regardless of the style, it is impractical to organize a single project that will encompass the entire enterprise. A realistic project scope is achieved by subdividing the enterprise into subject areas and areas into projects. At a logical level, when a series of stars share a set of common dimensions, the dimensions are referred to as conformed dimensions. Identical dimensions ensure conformance, but can take several other forms as well. Fact tables and conformed dimensions can be planned and documented in matrix format and serve as the blueprint for incremental implementation. Dimensions tables can conform in several ways. Shared dimensions, degenerate dimension and conformed rollups are three ways. A fourth style of conformance is less commonly accepted; it allows for overlapping dimensions. Tables that can conform when the dimension attributes of one are a subset of another are known up as a rollup dimension and a base dimension. They will not share a common surrogate key, but the common attributes must possess the same structure and consent. Degenerate dimensions can serve as the basis for conformance. The corresponding columns should consistent in the structure and content. But it is not required that every fact table share the same set of instance combinations, as to do would force violation od sparsity. Overlapping dimensions can also conform. Some designers prefer to avoid this situation, since it requires that multiple processes load equivalent dimensions columns in the same way. Conformed dimensions are the key to enterprise scope, serving as the infrastructure that integrates subject areas. This means that the dimensional design, including a conformance plan must be conducted as a strategic, upfront process. The conforming dimensions are best illustrated through matrices since the number of criss-crossing relationships can easily clutter a table diagram. The matrices can describe conformance within a data mart or across the data marts. They are a central feature of dimensional data warehouse architecture, produced as part of strategic design effort. It allows individual implementation to proceed individually, ensuring they will fit together as each comes online. In a Corporate Information Factory, information is extracted from the enterprise data warehouse and organized for departmental use in data marts. Because the data marts of the Corporate Information Factory draw their information from an integrated repository, the challenges of maintaining conformance are reduced, at least from the perspective of the dimensional modelers. The burden of bringing together disparate source is still present, nut it falls to the designers of the enterprise data warehouse. Designers of the dimensional data marts need only concern themselves with a single view of information: that provide by the enterprise data warehouse. Conformance is still a necessity with the data mart and conformance across data marts can help avoid the need for additional data marts to cross subject areas. Stand-alone data mart lacks an enterprise context. They do not conform and the associated risk can partially mitigated by planning for conformance of a few key dimensions. The stand-alone data may exhibit conformance internally, it is likely to be incompatible with other data marts. Stand- alone data marts may be retrofitted to work with existing conformed dimensions, but this process is not trivial.

Analysis of the Psalm of Life Poem

Analysis of the Psalm of Life Poem This poem dramatizes the conflict between the truth of life lived in the moment and the neglect of the soul when a person focuses on things beyond his control: namely the past and the future. There are many themes expressed by the poet within this work: freedom, happiness, perseverance, truth, futility, spirituality and success. From the title one might say that the theme is simply to seize the day: Carpe Diem (Harmon, 2009, 87). The poems form is that of the lyric (324)and the poet encourages the reader to use their imagination. The word choices and placement within its stanza evoke both a melody and emotion. There are nine stanzas that make up the composition and each contain the qualities of the quatrain [consist of four lines in which lines two and four must rhyme while having the same number of syllables (452)]. Psalm of Life also carries the traits of the dramatic monologue in that the narrator of the work is the poet himself (177). In stanza one, line one the poet assigns the description of mournful to the idea of numbers. This word was chosen to identify the audience: those who apparently go through life as though it is a chore. The word mournful frames the feeling as though something was lost and captures the grief generated by that loss. Life is but an empty dream! states why there are so many sorrowful within the audience: if there is no aim higher than what one can gather on the earth then life itself has no purpose. The poet reveals his motivation in lines three through four of the first stanza: For the soul is dead that slumbers/And things are not what they seem. Living life in a rut or for material reasons is the killer of the soul. The soul found unawares, which is what is implied by the word use of slumbers, is most vulnerable to eternal death. Line four tells the audience that they must look beyond the surface of the world as well as beyond themselves. Life is real! Life is earnest! conveys an earnes tness and a bit of desperation. An emphatic proclamation made in a way of a Southern Baptist preacher pleading with those on the path to destruction to turn to the life of the soul. And the grave is not its goal underlines the idea that life is something to be actively engaged in and not merely a journey to death. Dust thou are, to dust thou returnest, is referencing Genesis 3:19 and seems to throw this plea for life into a light that may speak to the religious up-bringing of his audience. The poet makes a very important distinction in the following line, Was not spoken of the soul. The creation of man is entirely unique from the rest of life on the earth because the Lord God formed man of the dust of the ground and breathed into his nostrils the breath of life; and man became a living soul(Genesis 3:19). These two lines bring into the poets supplication the backing of scripture. Stanza four brings forward the thought of futility: Art is long, and Time is fleeting,/And our hearts, though stout and brave,/ Still, like muffled drums, are beating funeral marches to the grave. It is as though the poet wants to remind his audience that every moment, every heartbeat is bringing them closer to the inevitable end ones life-time. This further underlines the idea of seizing the day. In using the word fleeting the poet attempts to get across that time will just continue on without regard for the individual- no matter how brave and firm ones heart might be. The poet is again underlining that life today is all one really has when faced with the flow of time. Stanza five, line 18 introduces a word that is unfamiliar in todays way of life: bivouac. This word defined in Merriam-Webster as a temporary or casual shelter or lodging and by itself holds the idea of the entire poem which is that this life is temporary. This stanza evokes urgency through the use of the exclamation point. The poet is telling his audience to be the hero of their own battles rather than a pawn in the battle of another with the words Be not like the dumb, driven cattle!/ Be a hero in the strife!. Stanza six addresses the two possible positions of the audience and bring to them some very specific supplications: for those who are living for tomorrow the poet says, Trust no Future, howeer pleasant! and for those who would lament the past, Let the dead Past bury its dead!. The poet does not leave the audience wondering what their response should be but plainly states, Act, act in the living present! Heart within, and God oerhead! People can make what they will of their own lives and can follow the example of the great men that came before them, Lives of great men all remind us/We can make our lives sublime,. There is no secret that separates those who are great from those that pass through life without leaving an impression. It seems as though the poet is saying that those who are considered great took advantage of the opportunities of their present. It is those people who departing, leave behind us/Footprints on the sand of time who provide encouragement not only to their generation, but for those in the generations to come Footprints, that perhaps another,/Sailing oer lifes solemn main,/A forlorn and shipwrecked brother,/Seeing shall take heart again. The final stanza brings a soft point to the compelling argument of the previous eight. It is as though the poet it taking the hand of the audience: to pull them gently from the bed of their complacency. The hand held out shows that walking along the road of today does not mean a journey travelled alone, Let us then be up and doing,/With a heart for any fate;/Still achieving, still pursuing,/ Learn to labor and wait. The poet takes the hand of the reader now as he did during his own time and seems to say to each individual: Let us move forward together.

Hard To Be Yourself :: Self Image Appearance Essays

Hard To Be Yourself How many times have we heard the saying "Don't judge by appearance?" And how many times have we been thoroughly disappointed by appealing images of things and people? The answer is quite simple: countless. And yet how many times do we catch ourselves staring in the mirror? And how many hours do we spend thinking about our image? The answer is once again very simple: countless. The real question which arises is "Why?" Why do we care so much about how everyone else perceives us? And why do we always worry about our appearance? Why is it so important for us to show the world what we possess and how much we can afford, when in reality we know that appearances can be misleading? The answers to these questions are not simple at all. In fact, there are so many viewpoints on this rather controversial issue that it is sometimes impossible to agree on one answer. It really depends on who is asking and who is being asked. In order to look deeper into these questions, some important aspects of life need to be taken into account. Take the media, for example. Doesn't it always show the most beautiful people in the world and the newest trends in fashion? Of course it does, that's its sole purpose. Everyone is curious about the magic makeup Cameron Diaz is wearing and about the most recent clothes designed by Versace. And we must not get behind with news on Nicholas Cage's new cars or Jennifer Lopez's mansion. We get so involved in the lives and images of others that we start to fantasize about looking like them and behaving like them. Think of all the young girls today who would give anything to live the life of Britney Spears. And let's not forget about the boys who want to be strong and able to fight like The Rock. The media manipulates us and forces us to create goals of looking fabulous and possessing expensive things. It is so influential that we sometimes can't control these ideas and desires. That, in turn, leads to all those hours spent thinking which dress would impress the guys and what kind of car would attract more women. We start to believe that looks are all that matter, and whoever has an impressive appearance is set for life. Well, isn't this true?

The benefits of immigration

Diseases like tuberculosis, malaria, leprosy and others that haven't been present for a long time, but that doesn't mean that are extinct or completed eradicated. Page 5 United States is facing one of the biggest problems in history, and it is terrorism. After the incident of September 1 1, 2001 the nation is fearful in some way of immigrants, because as the article said, three of the four pilots were in the country illegally. I understand the magnitude of that event, but not every illegal resident is a terrorist.Another point is that in the last years many of the terrorist that have been rrested are legal residents and have been born in the United States. So, they have to understand that they have the thread inside the country and try to manage the situation and stopped accusing the illegal immigrants of been the cause of terrorisms. They also forget that many legal immigrants are part of the Armed Forces and they are willing to serve and protect the country, even it means losing th eir life in combat. What really happen is that most of the people thought that terrorism is equal to illegal residents, and that isn't true.The person who least you expect could e a terrorist and it doesn't mean he or she is an illegal immigrant. According with the article: â€Å"†¦ we simply cannot round up and ship some 12+ million illegal aliens back to their home countries. Even if we could, children of illegal aliens who are born in the United States are, by commonly held interpretation of current law, American citizens†. It also said: â€Å"it would not be Just to punish the children for the sins of the parents so even children who were not born in the United States but have lived in the US most of their lives are, by default, Americans, at least in name†.I am totally agree with the two statements and think that it is a way to show a little respect to those who are illegally in the country. It is true that illegal immigration does have its disadvantages: gre ater poverty, increase in crimes, lower unskilled wage; education costs, and a few others. However, the positive benefits Page 6 of immigration outweigh the disadvantages in many ways. So, let us welcome the benefits that immigration provides to the nation. Let be open mind and accept the fact that United States is a big melting pot and each one has something to give to the nation.

Free Essays on The Libertarian Party

The Libertarian Party is the best party for the United States of America. I chose this party because not only do they realize that long overdue changes need to be made to the government, they come prepared with logical solutions; logical solutions made after simple observations. For example, one big change the Libertarians feel is necessary is the ending of the prohibition of drugs. They came to this conclusion after a simple observation of when the US tried to make alcohol illegal in the 1920’s. The result was organized crime. Criminals had found an easy way to make money. But the money they made from liquor simply funded their need of guns and explosives to then rob banks and houses. The same problem exists today with marijuana, the most widespread drug. It simply pays for the cost of guns to commit more harmful crimes such as murder or grand larceny. Not only that, but the criminals can now afford to produce more dangerous drugs such as cocaine or heroine. Another good solution they have proposed is to end foreign aid. Recently there has been a lot of talk about leaving a huge deficit for the future generations. A large part of this deficit comes from the $14 billion the US spends on foreign aid every year, amounting in $400 billion since the end of World War II. Also it has been shown that foreign aid has historically slowed economic development and created dependence. The Libertarian Party has observed that â€Å"the U.S. Agency for International Development itself admits, ‘Only a handful of countries that started receiving U.S. assistance in the 1950s and 1960s have ever graduated from dependent status’†(www.lp.org). I did not choose the Republican or Democratic Party because they seemed to lack the ability to look at a part of government logically and decide that it needs to be completely changed or removed. They feel the only way to fix a problem is by pumping more money into it and taking away more of our liberties. I... Free Essays on The Libertarian Party Free Essays on The Libertarian Party The Libertarian Party is the best party for the United States of America. I chose this party because not only do they realize that long overdue changes need to be made to the government, they come prepared with logical solutions; logical solutions made after simple observations. For example, one big change the Libertarians feel is necessary is the ending of the prohibition of drugs. They came to this conclusion after a simple observation of when the US tried to make alcohol illegal in the 1920’s. The result was organized crime. Criminals had found an easy way to make money. But the money they made from liquor simply funded their need of guns and explosives to then rob banks and houses. The same problem exists today with marijuana, the most widespread drug. It simply pays for the cost of guns to commit more harmful crimes such as murder or grand larceny. Not only that, but the criminals can now afford to produce more dangerous drugs such as cocaine or heroine. Another good solution they have proposed is to end foreign aid. Recently there has been a lot of talk about leaving a huge deficit for the future generations. A large part of this deficit comes from the $14 billion the US spends on foreign aid every year, amounting in $400 billion since the end of World War II. Also it has been shown that foreign aid has historically slowed economic development and created dependence. The Libertarian Party has observed that â€Å"the U.S. Agency for International Development itself admits, ‘Only a handful of countries that started receiving U.S. assistance in the 1950s and 1960s have ever graduated from dependent status’†(www.lp.org). I did not choose the Republican or Democratic Party because they seemed to lack the ability to look at a part of government logically and decide that it needs to be completely changed or removed. They feel the only way to fix a problem is by pumping more money into it and taking away more of our liberties. I...