Sunday, October 6, 2019
Violent video games Essay Example | Topics and Well Written Essays - 1250 words
Violent video games - Essay Example a popular source of entertainment for many members of society, some critics have raised concerns over their effects on the behavior of their enthusiasts. More especially, they note that violent video games lead members of society to be violent in behavior. This paper will analyze the extent to which violent video games cause their enthusiasts to behave violently. Many video games have scenes that depict violence or aggression as noted by the Entertainment Software Rating Board (2014). For a video game to be categorized as violent, it probably falls under the category teen, mature, or adults only. Under the teen (13+) category, the content descriptors for include: talks on alcohol, comic mischief, and language that is a bit harsh (Hughs 2007). Examples of games under this category are The Sims 2 Kitchen & Bath Interior Design Stuff. Under mature category, the rating takes into consideration the presence or absence of suggestive themes, blood, language thatââ¬â¢s strong, violence, harsh humor (Hughs 2007). One example of a video game that falls under the mature category is Metal Gear Solid 4: Guns of the Patriots. In the adult category, content descriptors include blood and gored blood scenes, intense violence, nakedness, strong language, strong sexual content, and use of illicit drugs. One video game that falls under this category is Grand Theft Auto: San Andreas (Hughs 2007). Whatever the category, a video game is considered to be violent in nature if it generally features violence, strong language, and weapons. Weapons used in some violent videos include chainsaws, machine guns, machetes, and grenades that make the killing bloodier (Ferguson & Garza 2011). Some violent video games are event characterized by gang warfare that include killing of police and pedestrians, shooting while driving, and racial factors where white heroes kill back victims as noted by Ferguson and Garza (2011). Some of these have the player advance by the making their killing most horrific.
Saturday, October 5, 2019
Karl Marx and Capitalism Essay Example | Topics and Well Written Essays - 1750 words
Karl Marx and Capitalism - Essay Example The basic premise of Marxââ¬â¢s theory about the value of labor is the claim that the value of a commodity is defined by the average number of labor-hours that go into its production. Then, the profit a capitalist makes when such a commodity is sold is what forms the surplus value of the commodity, and is not his rightful share but what he makes by cheating the laborer. The capitalist buys labour-power in order to use it; and labour-power in use is labour itself. â⬠(Kelso, 2005, n.p.) Here, if one were to take into account the scientific and technological developments the world has seen since the industrial revolution, we find that itââ¬â¢s the capital-provider who becomes the rightful recipient of the profits made by them by selling the product. Let me elaborate. With the advancement of technology, we have seen times, as much as we are seeing now, the production of machines that create more machines, automated ones too, which create a commodity that is sold. The machines themselves form a commodity too. Thus the profits that are brought home would be deserved by the ones that produced them: the machines which are owned by the capitalist, and hence the profit should go to him or her. Besides, if a productââ¬â¢s value were to be defined by the number of labor-hours that go into itââ¬â¢s making, then the fundamental paradox that is brought out is an interesting one: how can a product, say, an automated coffee-maker be of such a low value as the number of man-hours a labourer spends in operating the machine that makes it?
Friday, October 4, 2019
Egypts Position on the Arab Israeli Conflict Essay Example for Free
Egypts Position on the Arab Israeli Conflict Essay one. The Kingdom was from this time ruled as one by several dynasties. . This state which was formed in On 18 June 1953, the Egyptian Republic was declared. (Breasted Piccione, 2001). The 18th Dynasty however is the one that marked the kingdom as an international in the period circa 1550 and 1070 BC. Egypts strategic geographic position which gave it control over the Suez Canal attracted the French and the British who sat in its cabinet and controlled the Suez and to a great extend the entire country during the late years of the 16th century (Breasted Piccione, 2001). The British later colonized Egypt after the first world wear. It was the treatment the brutish gave the Egyptians that caused a revolution which ended up with Egypt being declared an independent state in 1922. Because of the remaining presence of the British and the monarchy form of ruling, more revolutions took place and ousted the resulting to the declaration of Egypt as a republic in June 1953. Egypts ideologies are mostly based on the Islamic religion as all its leaders since it became a republic have been Arab Muslims (Al-Azmeh, 1993). Egypt ideologies are based ion internationalism where it tries to have the best diplomatic relationships with all countries internationally. Egypt unlike other Arab countries deals well with the western countries and has a good relationship with Israeli, a country the rest of the Arab countries detest. The country also believes in nationalism and socialism where resources are distributed and intended to be owned by the people and not just few individuals in the country (Al-Azmeh, 1993). The country has tried to establish democracy in its politics allowing the citizens to choose their own leaders. This has not been very successful as there still are reports of leader rigging elections. In the worlds politics, Egypt takes a moderate position, tries to be fair to both the western and the Arab nations. Egypt mainly aims at building its international image. Egypts foreign policies have always been moderate. The country has a great influence on political matters in both Africa where it is situated and the Middle East because of its diplomatic expertise, significantly large population, military strength and its geographical position which is very strategic (Embassy of Egypt, 2009). I n the recent decades, Egypts foreign policies have aimed at enhancing the countrys relations both regionally and internationally by supporting structural reforms, liberalization in social economy and global economy integration which are perceived to be the best measures to employ in achieving full economic development. Egypts was in support of the Declaration of Principles treaty as they interpreted it to be supportive of their ideologies ion what would bring a lasting peace to the Middle East. The fact that the declaration transferred power over west bank and Gaza was in accordance with Egypts belief that the withdrawal of Israel from Palestinian Territories was the key to a lasting peace (Brown, 2004). Egypt thus responded by doing what was expected of it during the agreement as they believed that the declaration would bring a lasting peace if both sides kept to their side of the bargain. The Declaration of Principles required Egypt to help the two nations in cooperating so as to achieve the peace that was longed for in the Middle East. Egypt also supported the declaration as it included maintenance of security though by only Israel. Egypt has always believed that security was vital for peace hence supported by helping provide police officers and passports to the Palestinian citizens as was required by the agreement. Countries such as Iran, Israeli Settlers and Syria did not participate in the agreement as they did not believe that the peace would last. Others thought that the agreement was a threat to them and did not want it to succeed. Most of these nations also are Islamic and view Jews to be a threat to their religion hence were hesitated in supporting the peace talks. Most groups believe that DOP process stopped in 2000 which could be true as the events that are currently happening violate the agreements made. Egypts foreign policies are also committed to ensuring that a lasting peace which is comprehensive can come to the Middle East. It does so by being involved actively in the efforts that that can achieve the peace. Egypt for example was the first Arab nation to sign a peace treaty with Israel, a move which caused Israel to be expelled from the Arab League (Embassy of Egypt, 2009). The treaty required Israel to completely withdraw and retreat from Sinai in 1979 in exchange for peaceful normal diplomatic relations according to which Israeli honoured and withdrew. The two countries have since then had good diplomatic relations that are peaceful (Embassy of Egypt, 2009) Egypt believes that peace can only come to the Middle East if the efforts being made are comprehensive at making Israeli withdraw from the Palestinian territories it has been occupying that prevent the creation of an independent Palestine. Egypt also believes that Israel has to recognize and respect Palestines political rights in the controversial Jerusalem. Egypt has therefore been at the forefront in constantly assisting the partners negotiating in the peace process towards applying the Israeli withdrawal for peace to be achieved (Embassy of Egypt, 2009). Egypt also believes that it is possible for stable peace to be achieved between Israel and Palestine if mechanisms can be adopted that would ensure that security is maintained by both parties so that one party can not take advantage of its economic and military superiority to attack the other party. Egypt proposes the region to be freed from weapons of mass destruction in order to enhance security and reduce attacks on each other (Embassy of Egypt, 2009). Egypt further explains that a framework that would ensure regional cooperation needs to be established as it would enhance peace stability and benefit the individuals in the region. As discussed above, Egypt believes that there is possibility for potential future peace agreement which may be solely between Israel and the Palestinian because the disruption of peace in the entire Middle East is attributed to the conflict between the two nations. The conflict between Israel and other Arab nation is also a result of the conflict between it and Palestine. Solving the conflict between Israel and Palestine thus is the answer to bringing peace in the Middle East. Egypt advocates for peace between the two nations and want it be such that security is maintained in the two nations and that they are both disarmed of any weapons of mass destruction. Egypt believes that it is lack of security and presence of the weapons that encourages the two nations to attack each other. Egypt also advocates for the establishment of a framework as discussed earlier that would enhance cooperation between the two nations towards promoting peace stability that will be beneficial to the people I n the region (Brown, 2004). If a peace conference was held today, Egypt would still support a peace deal between the two nations. Egypt supports a two state solution just like the United States does (Asharq Alawshat, 2009). This is because Egypt believes in bringing a comprehensive and lasting peace to the Middle East. Following the most recent attacks on the Gaza strip by Israel which left hundreds of Palestinians dead, and the persistent occupation of Israel in areas that are rightfully Palestinians, Egypt would want a peace deal to be reached in which Israel must retreat and withdraw from occupying these areas so that Palestine can become an independent state as it was before the Israel occupation of its territories (Asharq Alawshat, 2009). Egypt will not accept either Israel or Palestine to own weapons of mass destruction as this would easily trigger another conflict in the event a peace agreement was reached. This is so as to stop the two nations from carrying on attacks and bombings on each other. Egypt would also not accept the deal if Israel did not withdraw from the Palestinian territories it currently is occupying. Egypt would offer diplomatic support as it always has in reaching a peace deal between the two nations (Brown, 2004). Egypt would be ready to act as a mediator between the two nations as they negotiate as it has good relations with both of them. Egypt believes that Israel should recognise Palestines rights regarding Jerusalem, during the peace conference, it would advocate for the recognition to be included in the terms of the final peace deal as Jerusalem is important to Palestine just as it is to Israel. Egypt wants a lasting peace in the Middle East and would do everything it can to help achieve it. Word count: 1500 References Al-Azmeh, A. (1993). Islams and Modernities. New York: Verso. Asharq Alawshat. (2009). Latest News. Retrieved 109th May 2009 from, http://www. asharq-e. com/. Breasted, J. Piccione, A. P. (2001). Ancient Records of Egypt. Chicago, Illinois : University of Illinois Press. Brown. C. L. (2004). Diplomacy in the Middle East: The International Relations of Regional and Outside Powers. New york, NY : I. B. Tauris. Embassy of Egypt. (2009). Political System. Derived 19th May 2009 from http://www. egyptembassy. net/
Thursday, October 3, 2019
Voting Choice and Age Research Results
Voting Choice and Age Research Results Statistics Assessment Social Research Skills 1 In this assignment you will need a) to answer some general questions about quantitative data analysis and b) to answer some questions using data taken from the 2014 British Social Attitudes Survey. All questions must be answered. 1. The following questions are about measurement List the different levels a variable may take and describe the properties of the levels. Nominal level is where the variable only measures differences between cases such as gender. This is because nominal level does not need any ordering among its responses. Ordinal level is where the variable can be ranked but the differences between categories is not available. An example can be educational achievement. Interval level are numerical scales in which intervals have the same interpretation throughout, such as temperature, but it is unusual to see this used in social science. Ratio level is an interval scale with the additional property that its zero position indicates the absence of the quantity being measured, such as income. List the level of measurement that has been used for each of the variables in the dataset (other than the serial number)? Do not use the level of measurement in the data file. They have all been set to scale. England, Scotland or Wales? Nominal Sex Nominal Age Interval/ratio Number of children in HH aged 4-15yrs Interval/ratio political party identification Nominal Better for govt to be formed of one party, or two in coalition? Ordinal How many, if any, cars or vans does your household own or have the regular use of? Ordinal How many trips did you make by plane during the last 12 months? ordinal How many employees do you supervise? ordinal How many hours do you normally work a week in your main job including any paid or unpaid overtime? Ordinal Are you now a member of a trade union or staff association? Ordinal Do you tend to trust or tend not to trust the police? ordinal Respondents religion nominal How old were you when you completed your continuous full-time education? Nominal How important to always to vote in elections ordinal People who want children ought to get married ordinal Gay or lesbian couples should have the right to marry one another if they want to ordinal There is one law for the rich and one for the poor ordinal Left-right scale ordinal Libertarian-authoritarian scale ordinal Welfarism scale ordinal To which of these groups do you consider you belong? ordinal How important to help people in the rest of the world who are worse off than yourself: ordinal How do variables levels of measurement affect statistical analyses? Give examples. Knowing the level of measure can help with how to interpret the data from that variable. This also means that the appropriate statistical analysis used on certain values because if the value was nominal then data would not be averaged or use a t-test on the data. 2. You are required to report some descriptive statistics. Report your findings using any charts or tables you think are appropriate. Report two measures of dispersion and two measures of central tendency of the number of children aged between 4 and 15 living in the respondents households? Statistics Number of children in HH aged 4-15yrs dv N Valid 2878 Missing 0 Mean .33 Median .00 Mode 0 Std. Deviation .741 Variance .548 Range 5 Minimum 0 Maximum 5 Measures of central tendency were computed to summarize the data for the number of children in households aged 4-15yrs variable. Measures of dispersion were computed to understand the variability of scores for the number of children in households aged 4-15yrs variable. The following are the results of this analysis; N = 2878, M=0.33, SD=0.741. When you look at the mean, it appears that there is signficant number of children aged 4-15yrs living in households. Also, based on the small standard deviation, it looks like the data is not varied. What percentage of the sample believe it is better for government to be formed of one party on its own? (report valid percent) à Better for govt to be formed of one party, or two in coalition? Frequency Percent Valid Percent Cumulative Percent Valid Govt formed by one political party on own 620 21.5 69.5 69.5 Govt formed by two political parties in coalition 272 9.5 30.5 100.0 Total 892 31.0 100.0 Missing Not applicable 1907 66.3 Dont know 76 2.6 Refused 3 .1 Total 1986 69.0 Total 2878 100.0 69.5% (valid percent) believe it is better for government to be formed of one party on its own. 3. The following questions are about the number of employees respondents supervise . What is the greatest number of employees a respondent reported supervising? Statistics How many employees do you supervise? dv N Valid 2776 Missing 102 Maximum 3000 The greatest number of employees who responded to the report of supervising was 3000. Recode the variable measuring how many employees respondents supervise into the following categories: 0 employees, 1- 10 employees, 11- 100 employees and more than 100 employees. Display the proportions in each category using appropriate tables and charts. This bar chart shows that over 60% of respondents supervised were 0 employees, over 20% of respondents supervised were 1- 10 employees, near 10% of respondents supervised were 11-100 employees and near 5% of respondents supervised were over 100 employees. What percentage of respondents who supervise 0 employees agree strongly there is one law for the rich and one for the poor? 25.1% respondents who supervise 0 employees agree strongly there is one law for the rich and one for the poor. 4. The following question are about the age respondents were when they left education and their scores on a welfare scale. Report the confidence interval of the mean age respondents were when they left continuous full time education. Please give an interpretation of your results. One-Sample Test Test Value = 0 t df Sig. (2-tailed) Mean Difference 95% Confidence Interval of the Difference Lower Upper How old were you when you completed your continuous full-time education? 90.416 2864 .000 19.053 18.64 19.47 We can be 95% confident that the mean on how old were you when you completed your continuous full-time education is between 18.64 and 19.47. This is significant due to significant value is less than the alpha value of 0.05, which means we can reject the null hypothesis. Is respondents mean score on the scale measuring their attitudes to welfare significantly different from 3? Please give an interpretation of your results. à One-Sample Test Test Value = 3 t df Sig. (2-tailed) Mean Difference 95% Confidence Interval of the Difference Lower Upper Welfarism scale -.479 2338 .632 -.0066929 -.034102 .020716 The mean is insignificant when testing at value of 3 so this means we cannot reject or accept the null hypothesis. 5. The following question is about hypothesis testing and statistical significance. In your own words, define the concept of a sampling distribution. Sampling distribution is where the possibility of obtaining each likely value of a statistic from a random sample of a population. In your own words, describe the difference between a p value and an à ¯Ã à ¡Ã ¯Ã¢â ¬Ã (alpha) value. The alpha value is the probability of rejecting the null hypothesis when the null hypothesis is true whereas the p value is the probability of obtaining your sample data if the null hypothesis was true. 6. The following questions are about behavioural and attitudinal differences between members of the sample. For each question you must select the appropriate test of significance, report relevant SPSS output and an interpretation of your results. a) Is respondents trust in the police independent of their race? Which test did you use and was it statistically significant? Do you tend to trust or tend not to trust the police? * To which of these groups do you consider you belong? Crosstabulation Count To which of these groups do you consider you belong? Total Black Asian White Do you tend to trust or tend not to trust the police? Trust it a great deal 6 23 239 268 Tend to trust it 32 48 1124 1204 Tend to distrust it 22 10 246 278 Distrust it greatly 5 1 94 100 Total 65 82 1703 1850 I used the Chi-squared test on the data. You could argue that the data does show that the respondents trust in the police may not be independent of their race, however I do not believe this was statistically significant due to needing a larger sample size to being to prove or disprove this hypothesis. How does the mean rating respondents give to helping people in the rest of the world who are worse off than you differ by religion? Which test did you use and was it statistically significant? Ranks Respondents religion dv N Mean Rank How important to help people in the rest of the world who are worse off than yourself: [S-C]AC Church of England/Anglican 286 305.02 Roman Catholic 154 389.22 Other Christian 247 360.93 Total 687 Ranks How important to help people in the rest of the world who are worse off than yourself: [S-C]AC N Mean Rank Respondents religion dv Not at all important 133 227.30 2 135 236.29 3 178 210.96 Total 446 I used the Kruskal Wallis test. You could argue that the data does show religion has a higher mean rank then to how important to help people in the rest of the world who are worse off than yourself. This is not statistically significant as it does prove or reject the null hypothesis. Describe the association between the numbers of cars and vans people own or have regular use of and the number of trips they can make by plane during the last 12 months? Which test did you use and was it statistically significant? Correlations How many, if any, cars or vans does your household own or have the regular use of? How many trips did you make by plane during the last 12 months? How many, if any, cars or vans does your household own or have the regular use of? Pearson Correlation 1 .502** Sig. (2-tailed) .000 N 2878 2878 How many trips did you make by plane during the last 12 months? Pearson Correlation .502** 1 Sig. (2-tailed) .000 N 2878 2878 **. Correlation is significant at the 0.01 level (2-tailed). I used the Pearsons Correlation Coefficient test. It was statistically significant because there is no correlation between the variables. How does the mean age respondents left full-time education differ across men and women? Which test did you use and was it statistically significant? How old were you when you completed your continuous full-time education? * Person 1 SEX Crosstabulation Person 1 SEX Total Male Female How old were you when you completed your continuous full-time education? 1 1 0 1 4 0 1 1 10 1 0 1 11 2 1 3 12 1 3 4 13 0 4 4 14 67 67 134 15 247 327 574 16 374 438 812 17 86 130 216 18 116 208 324 19 29 48 77 20 31 42 73 21 102 127 229 22 72 87 159 23 36 48 84 24 23 22 45 25 14 8 22 26 13 7 20 27 3 2 5 28 6 1 7 29 2 2 4 30 1 4 5 31 1 1 2 34 1 0 1 35 1 0 1 38 0 1 1 95 0 3 3 96 21 26 47 97 2 4 6 Total 1253 1612 2865 I used the Chi-squared test on the data. There is not much difference males and females in regards to what age they left education so this statistic test was statistically insignificant. 7. The following questions are about modelling the relationship between belief in always voting in elections and respondents age. Please include all relevant SPSS output and interpret your results. a) Model respondents beliefs about the importance of always voting in elections as a function of their age. What is the expected change in the scores measuring respondents beliefs in the importance of voting with a unit change in their age? Person 1 age last birthday * How important to always to vote in elections: [S-C]AC Crosstabulation Count How important to always to vote in elections: [S-C]AC Total Not at all important 2 3 4 5 6 Very important Person 1 age last birthday 18 2 1 2 2 2 1 3 13 19 1 0 0 1 3 2 5 12 20 1 1 2 2 1 3 2 12 21 2 1 2 2 3 1 2 13 22 2 1 0 1 2 1 7 14 23 4 2 0 0 2 4 4 16 24 2 1 3 5 4 2 0 17 25 1 2 5 1 1 2 6 18 26 3 1 1 2 4 1 4 16 27 1 1 0 4 2 6 8 22 28 3 1 0 4 7 1 9 25 29 1 0 2 1 2 1 6 13 30 1 1 4 4 4 2 5 21 31 2 1 3 2 1 5 7 21 32 2 0 2 2 2 3 6 17 33 2 0 1 1 2 1 7 14 34 0 0 1 3 0 3 7 14 35 1 4 1 2 1 5 15 29 36 1 0 6 2 3 5 12 29 37 1 0 1 2 3 5 6 18 38 1 0 3 1 0 3 13 21 39 1 0 3 4 6 0 9 23 40 1 0 2 3 6 1 8 21 41 3 1 4 7 6 3 12 36 42 4 2 4 6 3 3 14 36 43 1 3 1 4 5 4 14 32 44 1 0 0 3 0 1 8 13 45 1 1 6 1 4 3 12 28 46 4 0 1 3 2 2 14 26 47 2 1 1 0 3 2 14 23 48 2 2 0 3 3 4 8 22 49 3 0 0 3 6 7 10 29 50 2 0 4 1 1
Wednesday, October 2, 2019
Henri de Toulouse-Lautrec Essay -- Visual Arts Paintings Art
Henri de Toulouse-Lautrec Henri de Toulouse-Lautrec was arguably the greatest graphic artist of his time; he is best remembered for his bold, colourful posters of Parisian entertainers. His childhood years were spent at his family chateau in the southwest of France where he broke both of his legs and therefore stunted his growth. This left him ill proportioned and dwarfish. This unfortunate event probably helped his artistic ability as he spent most of his time on his own. Lautrec was at his peak as a painter and poster artist in the early 1890's at the time of the post impressionists. During his life Lautrec felt most comfortable in the nightclubs, dance halls and brothels of Paris. The narrow life he led is clearly shown in the art that he produced. Lautrec was best renowned for his paintings of the Moulin Rouge and other Parisian entertainers. Lautrec was not the first artist to make the Parisian entertainers serious subjects to paint, Edouard Manet and Edgar Degaswere among the first to paint the Paris nightlife and others soon followed their lead like Lautrec. Although Lautrec's many paintings looked spontaneous and carefree he as never "slapdash" as in he was never messy or careless. He was in fact a dedicated craftsman who knew a lot about the technical matters of his work, especially printmaking. Even after a rough night he would be up to supervise the printing of his lithographs bright and early. Lautrec always carried a small sketchbook with him so he could quickly draw or sketch whatever caught his attention and today thousands of his rapid drawings still survive in the original sketchbooks. He has also reached the elevated position of a dead artist where there is a museum dedicated to him and his work in Albi, France close to where he was born near Toulouse. In the actual paintings of his sketches he tried to keep the spontaneity of the first sketch and therefore liked to work quickly. To work fast he liked to use paint that was thinned considerably with turpentine, which was called peinture a l'essence, which allowed him to so called 'draw with the brush'. He also liked to use absorbent cardboard instead of canvas so the paint would dry quicker and therefore could maintain his momentum. Most painters have a trademark technique and Lautrec's trademark was the printmaking technique called 'crachis' or ... ...reas before this addition the painting must have been a restrained and balanced masterpiece. The unidentified redhead sitting at the table is wearing an exotic headdress that stands out magnificently against her red hair. If you look at each person they each have a distinctive hat or hairstyle as Lautrec was fascinated by different styles of headwear. The mirrored background that lines the walls gives the painting an undefined background so the silhouetted figures stand out boldly in the mirror. I liked this painting because it shows the somewhat quiet of the normally busy Moulin Rouge. The way Lautrec contrasted the brightly painted woman and the redhead at the forefront of the painting with the blacks and browns of the background also attracted me. I also admired the way Lautrec maintained the spontaneity all through his work. My favourite painting of the two that I have talked about is 'At the Moulin Rouge' because I think that this one looks more difficult to paint than 'At the Circus Fernando' as it is in greater detail and most importantly I think it looks better. But take nothing away from 'At the Circus Fernando' as this is also a brilliant piece of art.
The Meaning of Life Essay example -- essays research papers
The Meaning of Life The most difficult thing in life is finding something worth living for. The second most difficult thing is knowing when you've found it...... by Jamie Andreas Okay, let's be light hearted for once. Let's not talk about some heavy subject. Let's pick something more down to earth and fun. How about the meaning of life? Yes, the meaning of life, and the purpose of our lives. Teen-agers (that group of people who are most likely to begin to play the guitar) love to think about this. Since they are about to embark on that part of life called "being an adult", they like to question whether there is anything about it that makes it worth the bother. A 17 year old student once put it to me very poignantly. He said, ââ¬Å"When I look at the world, and I see what most of the adults I know are doing with their lives, and how they feel about their jobs, it is not very inspiring. I listen to people tell me I should play the game, and work hard to get good grades, so I can get a good job and all that. It all seems to have about as much meaning as going in to the library and memorizing the entire card catalog! What for? What's the point?" And I said to him ââ¬Å"You are exactly right. There is no point. There is no meaning to life." And I firmly believe that. I am going to make two points now. One, there is no meaning to life; you must create the meaning of life, and most especially, your life. And two, there most definitely is a purpose to life, and especially to your life, but you must discover it. These two ideas work together. Once you find your purpose, you will be able to see the "meaning" of your life. What does the word "meaning" mean? People are always asking what is the meaning of life, what is the meaning of death, what is the meaning of me losing my job, losing my hair, etc, etc. Well, you see the point is, there is no answer to the question because it is the wrong question. Only a person who doesn't know what the word meaning means will ask that question. Meaning means "to recognize a significance beyond the thing itself, or in other words, "to point to something beyond itself" And the recognition of that significance, seeing how anything you look at points to something beyond itself, is a creative act on the part of every individual, and it is also the responsibility of every individual. When ... ...ur purpose. Move toward what feels good. B.B. King, Eric Clapton, Jimi Hendrix, all have used nothing but the five notes of a minor pentatonic scale their whole lives! It is all they need for what they want to say. Maybe you need to learn to read music, maybe you don't. Maybe you need to know many chord inversions and scales, maybe you don't. It depends on what you want to say with your music. And what you want to say depends on how you feel. How do you feel? Maybe you are frustrated and confused when you think about this. That is good. Frustration is a push on the back, to get you moving, so you will look around and make discoveries. Make sure you use it that way. Don't stay in one place, or the push on the back will knock you over! The rule for the artist, for the musician, must be "if it feels good, do it". Following your feeling is how that feeling becomes "solidified" into a piece of music, so that it can be communicated and felt by someone else. Bad music is made by people who don't actually feel their feelings. They may not know it, but their music has no meaning, and no purpose. Have you found something worth living for? Is it waiting to be recognized?
Tuesday, October 1, 2019
How calcium is absorbed in the body Essay
Calcium in the diet of a teenager is actively absorbed in the small intestine and transferred into the intestinal capillaries. Describe the route this calcium would follow to end up in the upper arm. Describe in detail the role of calcium at the neuromuscular junction as well as its role in the mechanism of muscle contraction and relaxation of the triceps. Considering the function of calcium in bone growth, explain in detail how the humerus would grow in length. Calcium in the diet of a teenager is absorbed in the small intestine and transferred to the intestinal capillaries. It diffuses into the bloodstream through the gastric vein into the hepatic vein and then through the common iliac vein into the superior/inferior vena cava that brings the blood into the right atrium of the heart. The sinoatrial node which is located in the right atrial wall, would send an electrical impulse through the heart, causing it to contract. This would then trigger the AV node (which is located between the septum between two atria) to contract as well. When the AV node contracts it sends an impulse through the AV bundle and into the purkinje fibers (which in return causes the entire heart to contract). After going through the right atrium, when the heart contracts it opens up the tricuspid valve, therefore pushing the calcium into the right ventricle. When the heart contracts again (SA node contracts again through AV bundle and purkinje fibers) it causes the pulmonary semilunar valve to open and enters the pulmonary trunk and pulmonary arteries which then brings the blood into the lungs. Then it goes through a systemic loop (the tissue capillaries of the lungs) , which takes the now oxygenated blood and returns to the heart via the pulmonary veins from the lungs. Then from the pulmonary veins the blood enters the left atrium (SA node will contract, causing AV node to contract, sending impulse through the AV bundle, ending at the purkinje fibers) and calcium forces through the bicuspid valve, and into the left ventricle. Then the heart contracts, and (SA node/AV node/AV bundle/purkinje fibers) causing contraction and blood travels through the aortic valve and then into the aorta. From the aorta, the calcium in the blood goes into the right and left subclavian artery and branches down to the axillary artery, and then towards the bra chial artery. From the brachial artery, the oxygenated blood containing calcium in it, goes to the muscles of the upper arm (the brachii muscles) and gives nutrients to the tissue cells. Calcium plays an important role in muscle contraction. Firstly, an action potential arriving at the acon triggers the release of the neurotransmitter called acetylcholine (ACH) at the neuromuscular junction. The acetylcholine (ACH) binds with the muscle receptor and sodium ions (Na+) are released, which triggers the action potential in the muscle cell. The action potential transmits through the sarcolemma. The calcium (Ca+) ions are then released from the sarcoplasmic reticulum. The calcium ions bind with troponin (making it change shape) which makes the troponin release tropomyosin. The myosin then binds to the actin. With the hydrolysis of ATP the myosin head changes shape and a cross-bridge is formed causing the muscle cell to contract. This cycle repeats itself until the contraction is done, or when there is nor more calcium or ATP energy. Once the triceps muscle is relaxed then the calcium gets back into the sarcoplasmic reticulum. During relaxation of muscle cells, the level of calcium in sarcoplasm is low and the troponin holds the tropomyosin in position to block myosin-binding sites on actin. During contraction of the muscle cells, a muscle action potential opens calcium channels in the sarcoplasmic reticulum and the calcium flows into the cytosol. The growth of bones can happen through two different types of ossification which include: intramembranous ossification and endochondral ossification. The process for the growth of a long bone like the humerus, the process of endochondral ossification is used. This takes place on the epiphyseal plate (made from remaining hyaline cartilage) in the metaphysis area of the bone. There are four zones on the epiphyseal plate: a) the resting zone which contains the chondrocytes, b) the zone of proliferation where the chondrocytes divide and push the resting cartilage outwards, c) the zone of hypertrophic cartilage where the chondrocytes enlarge and lengthen the diaphysis, d) Zone of calcification- where dead chondrocytes and new one matrix is created. At the end of the growth period, the epiphyseal platesà are completely ossified and the epiphyseal plates close around the age from 18-25. The epiphyseal plates then become the epiphyseal lines. The calcium is a necessary dietary requirement for proper bone growth, development in the body, and to prevent bone deterioration or an example of a disease called osteoporosis.
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