Wednesday, May 6, 2020

The Rise of Punk in 70’s Britain. Free Essays

string(88) " to appear on Britain’s streets in attire which shocked the everyday British citizen\." hDuring 1970s Britain, life was a picture of austerity and hardship for many members of the public. The country was facing the worst economic recession since the Great Depression of the 1930s and large numbers of the electorate were quickly beginning to grow tired of the failing policies being touted by both Labour and Conservative minority governments. The experience of Britain for many in the 1970s was one of drawn out decline and decay, the consensus politics of the 1960’s was falling apart and Harold Macmillan’s notion of ‘You’ve never had it so good’ couldn’t have been further from the truth. We will write a custom essay sample on The Rise of Punk in 70’s Britain. or any similar topic only for you Order Now It could be argued that the aforementioned factors played a role of importance when assessing the largely spontaneous emergence of the punk movement into British society. Economic recession, not only in Britain but in other major world nations, was ever increasing, mainly due to the 1973 oil crisis which eventually cost Heath his post as prime minister and paved the way towards ‘The Rise of Thatcherism’.The crisis was due to the Arab members of the Organisation of the Petroleum Exporting Countries (OPEC), announcing, as a result of the ongoing Yom Kippur War, that they would no longer ship oil to nations that had supported Israel in its conflict with Syria and Egypt. These nations included the United States of America and their allies in the shape of Britain and Japan.British industry suffered a great deal due to the lack of oil being imported into the country, Britain began to face major competition from other major economies, such as Japan and the USA, in certain secto rs such as manufacturing, which had previously been a large and consistent area of income. With the flight of capital in the face of increasing working class militancy, it soon became clear that Governments in the industrialised economies could no longer sustain a commitment to full employment.As factories within these newly competitive industries were forced to close due to falling sales, it consequently had the effect of rising unemployment. By the mid 1970s unemployment had reached well over a million people and did not show signs of ceasing at any point soon after. The electorate began to resent the emergence of mass unemployment as it had not played any real part within British politics since the years shortly following the end of World War I, a period of British history which the British public would not look back on with any great affection and certainly would not want to revisit.Considerable amounts of workers who had been recently made redundant began supporting trade unions on a more regular and meaningful basis. The unemployed became aggrieved with the failing British economy and felt adamant that they deserved better support and welfare than they were currently receiving due to the government’s current inadequacies. Now that the trade unions had a much greater support, albeit in unfortunate circumstances, they began to put increasing pressure on Heath’s conservative government to pass legislative measures to aid the unemployed in their hour of need. Workers from almost all of the countries key industries such as mining, ship building and car manufacture went on strike to demonstrate their frustrations and vent their anger towards the incompetence of the Tory’ administration. The refusal by either party to make compromises on their respective arguments only furthered the problems and deepened the mire which Britain was steadily descending into.Due to the prolonged strikes by the mining community which started on the 10th February 1974 and lasted until 7th March of the same year, Britain found herself being exceedingly stretched to the point of what resources they had left circa the aforesaid strike action. Electrical power was deemed to be being consumed at too much of a prompt pace and under the rule of Edward Heath, the Conservatives decided on the introduction of the ‘Three Day Week’. The Three Day Week was a policy in which commercial users of electricity would be limited to a quota of three specified cons ecutive days use in a week long period.General members of the public also had to deal with the consequences of the striking populations’ actions. Ministers solemnly urged the populace to share baths and brush their teeth in the dark. Television, which by now was one of the nation’s favourite pastimes, was brought to an untimely end at 10. 30pm each evening. Heath had promised â€Å"tomorrow would be better than today†, but he couldn’t even keep the lights on. An image synonymous with the mid to late 1970s was that of piles of rotting rubbish collecting on pavements throughout the country.Waste centres were closed and emergency refuse sites were opened in town streets after binmen joined in months of strikes. This only became a further irritant to the British electorate who were becoming increasingly restless waiting for the government to develop new strategies in order to tackle the ongoing disrepute between themselves and Britain’s workforce. The social and economic problems of Britain, however, could not be solved simply by government legislation. Unrest was caused by much more than Heath’s perceived shortcomings as a Prime Minister. The problems of society ran far deeper than that.A process of fallout from the 1960’s had occurred; a sizeable part of the generation born at the end of the late 50’s and early 60’s were coming into maturity and most were without the guarantee of a job, economic stability and a sense of community. The younger generations within Britain began to feel alienated from their peers and it could also be argued that some may have wished alienation upon themselves to escape from what was fast becoming a dire excuse for a society. The youth of the time were on the lookout for an escape from their lives of conservatism, conformity and control.This accumulated feeling of resentment towards the authoritarian government manifested itself in the form of the Punk movement. From late 1976, kids started to appear on Britain’s streets in attire which shocked the everyday British c itizen. You read "The Rise of Punk in 70’s Britain." in category "Papers" Ripped t-shirts with hastily drawn band logos, safety pins, bin liners and spiked hair defined a new image. Since the 1960s any diversity became a wagon to jump on; any music, fashion or ideologies that were incorporated within the ‘free love’ scene were no longer something that the uninspired youth of the ‘70s aspired to be part of.Mods, Rockers and Hippies were all fast becoming sub-cultures that were deemed to be cliched by the nation’s youth. The ‘60s scene had been entirely commercialised by the establishment and had been turned into areas of profit by large record companies. These record labels however also were not putting any interest or faith into anything new in the music industry, they wanted to stick with what had brought them so much profit and it seemed nothing would be able to shift their ‘if its not broken, don’t fix it’ mentality.The establishment of the 1960’s-70’s did not want their youth creating c ounter-cultures, thus the average youth felt the need to rebel and so the DIY culture exploded. Although punk never reached the forefront in the 60’s, the rebellious ethos of the movement was beginning to show, mainly in American acts and specifically within the New York rock scene. Teenagers influenced by the R;B styled groups of the decades earlier years began to form their own garage bands across the United States. Various trends and events would occur at the inception of the 1970’s that would be helpful in advancing the music ndustry and working towards the growth of punk rock, namely the deaths of Jimi Hendrix and Jim Morrison which seemed to have brought the popular music lovers into a state of uncertainty and would now mean music journalists would have to find new acts to write about. In Great Britain, bands and artists such as David Bowie had started to refine their sounds in hope of reviving their careers. The result of this was the so called ‘glam’ movement, which saw artists like T-Rex and Roxy Music beginning to blend pop song structures with harder edged guitar based material.Back in the New York Scene, a trashy streetwise orientated version of glam was starting to surface. A band eager to take to the throne of this was the New York Dolls. The Dolls, and later, The Ramones would serve as somewhat of a prototype, from which later came the Sex Pistols and many other of London’s punk bands such as The Clash, The Jam and Siouxsie and The Banshees. By the mid ‘70s many music lovers had become tiresome towards the industry’s ‘run of the mill’ rock that the public were being force-fed. Members of the public began to see rock and roll acts as nothing more than that acts – artificial, manufactured and uninspiring.The world of rock had become a tightly controlled, moneymaking machine in which record sales and success held precedence over any passion or true emotion. Essentially people yearned for a rock and roll that was innovative and fun again. On December 1st 1976 an infamous event occurred that made sure that anyone who was not aware of the emergence of punk was now fully conscious of its presence. The Sex Pistols appeared on the ‘Today’ show as a last minute replacement. The band was interviewed by Bill Grundy who naively on his part, proceeded to provoke the band to â€Å"say something outrageous†. For Mick Jones in particular, he took this as an open invitation and obliged with a barrage of expletives, which not surprisingly, shocked the early evening audience. The following day the front page of various national newspapers contained pictures of the band on the show and a summary of their antics. The older generation of Britain, needless to say, were in outrage. This however was exactly the kind of reaction the band had dreamed of. It gained them column inches and further made the public aware of their existence. Whilst in the public spotlight the band released arguably their most famous single, ‘God Save The Queen.The song came at a time when opposition to royalty was still seen as treasonous and frowned upon by the majority of British people. The record was quickly refused airtime by the BBC whose station, Radio 1, dominated the broadcasting of music at the time. Only DJs such as John Peel dared to play punk in succession to other popular music hits of the era. Nevertheless, during the week of Queen Elizabeth II’s silver jubilee, the single ‘officially’ reached number two in the UK charts although many large record stores knew that ‘God Save The Queen’ was outselling Rod Stewart’s â€Å"I Don’t Want To Talk About It† by four to one.Unbelievably, the charts had been rigged so the music industry would not be red-faced by such a spectacle. However this did not deter the band from putting out further material. ‘Pretty Vacant’ and ‘Holidays In The Sun’ were released to promote the Sex Pistols’ first and only full length album, ‘Never Mind The Bollocks – Here’s The Sex Pistols’, which was released in November and s ubsequently went straight to the top of the album charts despite many stores refusing to stock it.After another tour, this time held in secret to avoid bans, The Pistols’ final gig took place at Ivanhoe’s in Huddersfield on Christmas Day 1977 before they took off for the ill-fated U. S. tour in January 1978. They had originally been scheduled to start the tour in December 1977, beginning with a performance on Saturday Night Live, but due to the bands run-ins with the law, were unable to get their passports in time, so Stiff Records’ band, Elvis Costello and the Attractions, went on in their place. The eight show tour of the U. S. was a badly planned and dispiriting experience for all concerned.Sid Vicious, the band’s bassist, was beaten by the bodyguards who were hired to protect him, Johnny Rotten was ill and the bands’ performances were destroyed by awful sound and hostile audiences. On the final date of January 14th at the Winterland Ballroom in San Francisco, Rotten quit, famously asking â€Å"Ever get the feeling you’ve been cheated? † before walking off. Punk bands continued to play the usual haunts around London, but never again did anyone come close to causing the outrage or having the success which the Sex Pistols had experienced.I went about organising a question and answer session with my father Martin, who was in his teens during the emergence of punk and also followed the movement with great interest. Through summarising the feedback I gained from the aforementioned interview I was given a great personal viewpoint on the society of the mid 1970s as well as his own personal experiences of the same period. ‘Through the 1970s the news was all about strikes, economic downturns and lost opportunities.As a teenager I can recall the 3 day week when places of work closed to save energy, my dad would be at home on reduced pay (he worked for the GPO – now BT) and the newspapers would print schedules showing when your area would have power cuts, which were a regular part of life. I remember my dad taking my sister and me for a drive in the car to Falkirk to get out of the house and keep warm rather than sit in the house with no power. TV stations shut down after the news at 10. 30 in the hope that people would just go to bed and save electricity.A mate of mine bought packets of candles from the market in Glasgow and made a decent addition to his pocket money by selling them round the neighbourhood where he lived. Also the entitlement to dole money for school leavers had been stopped which meant that you couldn’t sign on and get money straight away, you had to wait for a number of weeks before you’d get a â€Å"Giro†. Unemployment was making the headlines in the papers and for the first time in years people were leaving school believing that they wouldn’t get a job, or at least wouldn’t get one that was worth having as the factories and shipyards which traditionally paid well were closing.I started to become aware, mainly through the pages of the NME, a number of bands from London who were playing music inspired by early Iggy Pop and The Stooges as well as The Ramones. The latter had made front page headlines in The Glasgow Evening Times, which had got itself in a state of moral outrage over the song â€Å"Sniffin’ Glue† arguing that the number of kids dying from glue sniffing could be increased due to the song. Bearing in mind how few copies it sold, it was nonsense.John Peel once said of the punk era â€Å"You don’t know you’re bored, until you stop being bored. † I was 17 in 1976 and probably the only band I was currently into was Dr Feelgood. They were a band playing Chuck Berry influenced songs, wearing bad suits! The prevailing music of the time was bland, inconsequential, middle of the road rubbish by Rod Stewart, The Eagles and Queen. I still remember vividly the moment I first actually heard the Sex Pistols in November 1976.My friend Davie had borrowed a copy of ‘Anarchy in the UK’ from his friend in school and we played it in my bedroom. I can remember us both laughing out loud at how different it was and how blown away we were by it. We must have played it 10 times in a row. Looking back, I think we felt like we were part of a â€Å"privileged few† who had heard the song as it was subsequently banned by all radio stations at the time, this is hard to imagine now. The 3rd single released by the Pistols, â€Å"Pretty Vacant†, could only be played on Radio 1 after 10pm.If anything, it only reinforced the Pistols credentials as the band you most wanted to be associated with. We started to see and hear of people dressed as â€Å"punks† around the city, though what constituted the punk look was very difficult to describe. It could be anything from old school jumpers ripped and worn inside out, t-shirts torn or cut and held together with safety pins with band names scrawled on in biro or marker pen or even t-shirts made from bin liners.For girls the look was heavily based on Jordan (Pamela Hook) and Siouxsie Sioux; short skirts, fishnets, and heavy eye make-up. . Glasgow District Council decided to withdraw licences of any venue which had booked punk acts, effectively banning punk in the city. Occasionally you’d hear of a secret gig being played somewhere in Glasgow and you had to meet up to be told where it was. By the Summer of 1977 I’d left school and got a job in an independent record shop and remember the clamour when the first Pistols album came out.People were waiting around in the shop for it to be delivered. Every box that arrived, we’d be asked if that was the album. First one out of the box went onto the sound system at maximum volume and we couldn’t keep up with people shoving to the front of the queue. Eventually the council lifted the ban and loads of bands came to Glasgow, many playing small gigs and doing signing sessions in the shop where I worked, including The Clash who were considered to be the most overtly â€Å"political† band of the era. ’ How to cite The Rise of Punk in 70’s Britain., Papers

Monday, May 4, 2020

love the way you lie by rihanna and mm free essay sample

Ok i would just like to say I no longer have a hate for Chris Brown. He beat Rihanna and everyone felt so bad for her but now she has a song were she says Just gonna stand there And watch me burn But thats alright Because I like The way it hurts Just gonna stand there And hear me cry But thats alright Because I love The way you lie I love the way you lie I love the way you lie She has a song saying she doesnt care about getting abused! Im sorry but this song,especially for her, is inapropriate. Little girls look up to her, I know my sisters do and the last thing they need is someone they know has been abused saying its ok to be abused. I had respect for Rihanna, I thought she was a good artist and smart but thats no longer true. We will write a custom essay sample on love the way you lie by rihanna and mm or any similar topic specifically for you Do Not WasteYour Time HIRE WRITER Only 13.90 / page Love the way you lie is a stupid song that has a bad meaning.

Saturday, March 28, 2020

Martin Luther King Jr. Dream Often, Dream Big, Dream Change Essay Example

Martin Luther King Jr.: Dream Often, Dream Big, Dream Change Paper Dream Often, Dream Big, Dream Change Martin Luther King, Jr. , was one of the most powerful leaders in the civil rights movement, from the bus boycott to his historical speech â€Å"I Have a Dream†. Martin Luther King presented his most inspiring speech on August 28, 1963, and it had a great impact on the United States. In his speech he emphasized phrases by repeating at the beginning of sentences. He also repeated key theme word in his speech including â€Å"freedom†, â€Å"we†, â€Å"our†, â€Å"you†, â€Å"nation†, â€Å"America†, and â€Å"dream†. Martin Luther King, Jr. also utilized appropriate quotations and allusions in his compelling speech. Using biblical verses and references to national documents like the Declaration of Independence. He used specific examples to ground his argument along with making numerous geographic references. His use of metaphors to high light contrasting concepts allowed his audience to associa te thoughts with concrete images and emotions. Martin Luther King, Jr. ’s, â€Å"I Have a Dream† speech is the most historical speech during the civil rights movement because of the impact it had on America. First of all, Martin Luther King, Jr. , wrote his speech using anaphora, repeating words at the beginning of neighboring causes. Repeating the words twice sets the pattern, and further repetitions emphasize the pattern and increase the rhetorical effect. â€Å"I have a dream† is repeated in eight successive sentences and is one of the most often cited examples of anaphora in modern rhetoric. He had many key phrases: â€Å"One hundred years later†, â€Å"now is the time†, â€Å"we must†, â€Å"we can never be satisfied†, â€Å"go back to†, â€Å"I have a dream†, â€Å"with this faith† and â€Å"let freedom ring†. In Kings speech he said â€Å"one hundred years later† four times in the beginning of his I have a dream speech. Even in the absence of the remainder of the speech, these key phrases and by extension make King’s story more memorable. The use of anaphora in Martin Luther King’s speech added emphasis to catch America’s attention. Next Martin Luther King repeated key theme words throughout his speech. â€Å"Repetition in forms like anaphora is quite obvious, but there are more subtle ways to use repetition as well. † (Dluang) If you were to count the frequency of the words used in King’s speech like â€Å"I have a dream† you would ind that it was repeated seven times (King). â€Å"The most commonly used noun is â€Å"freedom†, which is used 20 times. It makes sense, since freedom is the primary theme in the speech. † (Dluang) Other commonly repeated words: â€Å"we† repeated 30 times, â€Å"our† repeated 17 tim es, â€Å"you† repeated eight times, â€Å"nation† repeated ten times, â€Å"America† repeated five times, â€Å"justice† repeated eight times, â€Å"injustice† repeated three times, and â€Å"dream† repeated 11 times. The proper usage of repetition of key theme words in his speech brought a greater effect to the audience We will write a custom essay sample on Martin Luther King Jr.: Dream Often, Dream Big, Dream Change specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Martin Luther King Jr.: Dream Often, Dream Big, Dream Change specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Martin Luther King Jr.: Dream Often, Dream Big, Dream Change specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Another powerful speech writing technique used by Martin Luther King, Jr. , was how he utilized appropriate quotations and allusions. â€Å"Evoking history and literary references is a powerful speech writing technique which can be executed by using direct quotations or an allusion. † (Dluang) He refers to Abraham Lincoln’s famous Gettysburg Address where he begins â€Å" Four score and seven years ago† this allusion is an authentic point given that King was in front of the Lincoln Memorial. â€Å"As he began his speech â€Å"Five score years ago implying that the Emancipation Approximation was signed one hundred years ago. † (Dluang) Also in his speech he says â€Å"Life, liberty, and the pursuit of happiness,† reference to the United States Declaration of Independence. Along with national documents he referred to numerous biblical allusions to provide a moral basis to his argument. In the second paragraph he says,† in came as a joyous daybr eak to end the long nights of their captivity,† which alludes to Psalms 30:5 â€Å"for his anger is not but for a moment, his favor is for a lifetime. Weeping may linger for the night, but joy comes with the morning. † Many more biblical verses were shared to provide the moral basis in King’s argument. To show that in the bible no matter what color or language you spoke that everyone was created equal and share the earth together so one should not discriminate another because they are different. Also providing specific examples which illustrate his logic and argument helped his speech impact many lives. Martin Luther King, Jr. made numerous specific geological references throughout his speech including Mississippi, New York, South Carolina, Georgia, Alabama, Louisiana, New Hampshire, Pennsylvania, Colorado, California, and Tennessee. He mentioned Mississippi on four separate occasions in his speech because Mississippi would evoke some of the strongest emotions and images for his audience because that is on of the most prejudice states. He also used generic geographic references like â€Å"slums and ghettos of our nort hern cities†, â€Å"the South†, â€Å"every mountainside†, and â€Å"from every village and every hamlet†. Using geographic references gave his audience an image of how life was for the Negro and the harsh injustice that was served. Lastly King’s usage of metaphors to high light contrasting thoughts to catch attention to the large audience he was speaking to. To high light the contrast between two abstract concepts, consider association them with contrasting concrete metaphors. For example, to contrast segregation with racial justice, King evokes the contrasting metaphor of the dark, desolate valley and the sunlit path, the dark, desolate valley being segregation and the sunlit path being racial justice. Martin Luther King also said, â€Å"Joyous day break to end the long night of their captivity. † Along with that he also said, â€Å"The Negro lives on a lonely island of poverty in the midst of a vast ocean of material prosperity. † The usage of metaphors to high light contrasting concepts allows King to associate his speech concepts with concrete images and emotions that inspire his audience. All in all Martin Luther King’s â€Å"I Have a Dream† speech is one of the most important speeches ever made during the civil rights movement. He was one of the most influential man to all African Americans. This speech had a great impact on America because of his emphasized phrases at the beginning of each sentence, his repetition of key theme words throughout his speech, appropriate usage of quotations and allusions, his specific examples that grounded his arguments, and his powerful use of metaphors to highlight contrasting concepts. He used biblical allusions to help his moral basis in his arguments. He also quoted the United States Declaration of Independence to provide reference that all Americans should be free no matter what color they are.

Saturday, March 7, 2020

Bolivian Tin Mining essays

Bolivian Tin Mining essays Bolivia has a long history as a mining country. During the Colonial period, the Cerro Ricco de Potosi mine enriched the Spanish Empire with the enormous quantities of silver it produced for over four hundred years. And throughout the years of tin was often found along side the silver being mined. At the tail end of Colonial silver mining, large quantity of tin was discarded as waste. In 1865 the price of silver began declining in response to several factors; rich deposits were found in California; a declining demand in Eastern Countries and the increased use of paper as currency. When silver collapsed on the International Market, it was impossible to transfer the technology and communications to other metals. Yet, an expansion of world demand for tin, in canning and other industrial uses, allowed Bolivia to capitalize on its resources and quickly respond to international demand. The availability of cheap labor and railroad transportation in Bolivia meant suddenly it became profitable for Bolivia to ship this mineral, making the transition from silver to tin a relatively easy one for the Bolivian economy to make. (Klein 163) Around the same time in 1894, a man named Simon Patino purchased his first share in a tin mine. The mine was in Orerro, in the canton of Unicia, on the border of the province of Potosi. Patino was a mestizo white collar mine employee who ended up purchasing full control of the mine by 1897. In 1900 he struck one of the richest veins ever found in Bolivia. Acquiring vast European holdings in nonmining and mining-related investments eventually made Patino one of the fourth wealthiest men in the world. Managers for Patino Mines dictated policy to the Bolivian government. As Bolivias most powerful capitalist, he often extended large private loans to the government for tax concessions and political favors, holding virtual veto powe...

Wednesday, February 19, 2020

Popular Music Since The 1950s As The Exploitation Of Black Music By Essay

Popular Music Since The 1950s As The Exploitation Of Black Music By White Artists And Corporations - Essay Example A number of scholars propose the idea that African-American culture and music were effective expression forms and social inclusion means. Although they originate from the folk music of the African-American slaves, â€Å"the root cause of transnational black identity† (Gilroy The Black Atlantic 1992, p.60), it served as an effective instrument for cultural and social inclusion throughout the 20th century. The introduction of blues, jazz and other black music genres provided blacks a strong impact over American culture and a distinguishing place in a society that was fundamentally closed to black people well into the 20th century (Chiriguayo 2002), (Dwight 1995). In the study The Spirituals and the Blues the African-American scholar James H. Cone (1991, p. 130) argued that â€Å"whatever form black music takes, it is always an expression of black life in America and what the people must do to survive with a measure of dignity in a society which seems bent on destroying their ri ght to be human beings†. The book Blues People is the first real try to place major black music genres as blues and jazz within the setting of Afro-American social history, it illuminates the impact of blacks on American history and culture. Terry Jones (2005) asserts that the blues is a musical opera about life and times of Black America. The blues is the story of Black America in worldly musical form. However, Harrison (1997, p. 18) insisted that â€Å"blues was always a multi-racial music.... The Wikipedia encyclopedia, defines that the term exploitation may carry two distinct meanings: (1) the act of utilizing something for any purpose. In this case, exploit is a synonym for use; (2) the act of utilizing something in an unjust or cruel manner for one's own advantage. Most often, the word exploitation is used to refer to economic exploitation - the act of using another person's labor without offering them an adequate compensation. The Marxist theory is primarily concerned with the exploitation of a whole segment or class of society by another. From this point of view the black music is exploited by whites. Article of Phil Rubio 'Crossover Dreams' (1993) provides a curious vision of the confrontation between black art forms and white performers. In many cases white musicians are motivated by envy or admiration for the emulated black performers. And we see the utilization of African-American culture by whites to find the spirit and humanity, they feel they've lost. It is known that the end of a constant source of interchange and friction should not be seen as the start as 'whites have been playing black music for decades' (Davis 1995, p.84). We are not to locate the first white blues performer. The phenomenon of numerous white musicians taking up the black music is a fairly modern spectacle, beginning in the late 1950s and the early 1960s. One of the first objections to this phenomenon was made by Charles Radcliffe in the UK publication Anarchy (1965). Of course, many people did not consider singing in a black vocal style to be part of blues performance, moreover many feel that whites who have uneasy destiny, for example Hank Williams, sing in their own suffering manner, a distinctively non-black style. We can agree that

Tuesday, February 4, 2020

Applied Business Research-week 4 Assignment Example | Topics and Well Written Essays - 1000 words

Applied Business Research-week 4 - Assignment Example Managers will not stop talking and researching about happiness at workplace for they understand that their clients will get satisfactory services, hence improving the corporation’s sales as happiness possessed by the workforce will effortlessly manipulate customers’ loyalty toward their products. Finally, get assured that many individuals have understood the importance happiness in workplace while others are yet to encounter its significance. Therefore, the talk about happiness will continue. In the article, the authors strive to define positive psychology as scientifically informed acuity on what make life worth living. The writers also tried to elucidate the derivation of positive psychology as they believe that it originated from Maslow book called motivational and personality of 1954. It was hypothesized in 1998 by Martin Seligman who realized that positive psychology has left out two things; helping people to live a productive and fulfilling lives and also nurture high aptitudes (Seligman & Csikszentmihalyi, 2000). Positive psychology is anticipated to grow steadily and thus helping psychologist to better understand the society and thus using this new branch of psychology in resolving problems confronting humankind. The authors have also exposed how positive psychology is skillful at shaping vital conceptions to be used by individuals in asphyxiating impending problems. In conclusion, the authors have emphasized that people should synthesize on positive and negative life factors that they face in their daily lives thus using them to live a praiseworthy life. Employee morale significantly relate in fostering happiness in the workplace. Morale, certainly, is something that cannot be bought, but is attained within the working surroundings of an individual. Therefore, the same environment must be capable of providing opportunities where one is trusted, valued and respected. This is

Monday, January 27, 2020

Overview of Cytokinins (CK)

Overview of Cytokinins (CK) FARA SHAKEEL CYTOKININS: Cytokinins (CK) are a class of plant growth substances (phytohormones) that promote cell division, or cytokinesis, in plant roots and shoots. They are involved primarily in cell growth and differentiation, but also affect apical dominance, axillary bud growth, and leaf senescence. STRUCTURE OF CYTOKININS: NATURE OF CYTOKININS: Cytokinins are compounds with a structure resembling adenine which promote cell division and have other similar functions to kinetin. Kinetin was the first cytokinin discovered and so named because of the compounds ability to promote cytokinesis (cell division). Though it is a natural compound, It is not made in plants, and is therefore usually considered a synthetic cytokinin (meaning that the hormone is synthesized somewhere other than in a plant). The most common form of naturally occurring cytokinin in plants today is called zeatin which was isolated from corn (Zea mays) Cytokinins have been found in almost all higher plants as well as mosses, fungi, bacteria, and also in tRNA of many prokaryotes and eukaryotes. Today there are more than 200 natural and synthetic cytokinins combined. Cytokinin concentrations are highest in meristematic regions and areas of continuous growth potential such as roots, young leaves, developing fruits, and seeds (Arteca, 1996; Mauseth, 1991; Raven, 1992; Salisbury and Ross, 1992). HISTORY OF CYTOKININS: In 1913, Gottlieb Haberlandt discovered that a compound found in phloem had the ability to stimulate cell division (Haberlandt, 1913). In 1941, Johannes van Overbeek discovered that the milky endosperm from coconut also had this ability. He also showed that various other plant species had compounds which stimulated cell division (van Overbeek, 1941). In 1954, Jablonski and Skoog extended the work of Haberlandt showing that vascular tissues contained compounds which promote cell division (Jablonski and Skoog, 1954). The first cytokinin was isolated from herring sperm in 1955 by Miller and his associates (Miller et al., 1955). This compound was named kinetin because of its ability to promote cytokinesis. Hall and deRopp reported that kinetin could be formed from DNA degradation products in 1955 (Hall and deRopp, 1955). The first naturally occurring cytokinin was isolated from corn in 1961 by Miller (Miller, 1961). It was later called zeatin. Almost simultaneous w ith Miller Letham published a report on zeatin as a factor inducing cell division and later described its chemical properties (Letham, 1963). It is Miller and Letham that are credited with the simultaneous discovery of zeatin. Since that time, many more naturally occurring cytokinins have been isolated and the compound is ubiquitous to all plant species in one form or another (Arteca, 1996; Salisbury and Ross, 1992). BIOSYNTHESIS AND METABOLISM: Cytokinin is generally found in higher concentrations in meristematic regions and growing tissues. They are believed to be synthesized in the roots and translocated via the xylem to shoots. Cytokinin biosynthesis happens through the biochemical modification of adenine. The process by which they are synthesized is as follows (McGaw, 1995; Salisbury and Ross, 1992): A product of the mevalonate pathway called isopentyl pyrophosphate is isomerized. This isomer can then react with adenosine monophosphate with the aid of an enzyme called isopentenyl AMP synthase. The result is isopentenyl adenosine-5-phosphate (isopentenyl AMP). This product can then be converted to isopentenyl adenosine by removal of the phosphate by a phosphatase and further converted to isopentenyl adenine by removal of the ribose group. Isopentenyl adenine can be converted to the three major forms of naturally occurring cytokinins. Other pathways or slight alterations of this one probably l ead to the other forms. Degradation of cytokinins occurs largely due to the enzyme cytokinin oxidase. This enzyme removes the side chain and releases adenine. Derivitives can also be made but the pathways are more complex and poorly understood. TRANSPORT: via xylem (transpiration stream) in peas, a signal from the leaves may signal/regulate transport of cytokinins from the roots zeatin ribosides are the main transport form; converted to the free base or glucosides in the leaves some cytokinin also moves in the phloem. Mode of action: The ratio of auxin to cytokinin plays an important role in the effect of cytokinin on plant growth. Cytokinin alone has no effect on parenchyma cells. When cultured with auxin but no cytokinin, they grow large but do not divide. When cytokinin is added, the cells expand and differentiate. When cytokinin and auxin are present in equal levels, the parenchyma cells form an undifferentiated callus. More cytokinin induces growth of shoot buds, while more auxin induces root formation. Cytokinins are involved in many plant processes, including cell division and shoot and root morphogenesis. They are known to regulate axillary bud growth and apical dominance. The direct inhibition hypothesis posits that these effects result from the cytokinin to auxin ratio. This theory states that auxin from apical buds travels down shoots to inhibit axillary bud growth. This promotes shoot growth, and restricts lateral branching. Cytokinin moves from the roots into the shoots, eventually signaling lateral bud growth. Simple experiments support this theory. When the apical bud is removed, the axillary buds are uninhibited, lateral growth increases, and plants become bushier. Applying auxin to the cut stem again inhibits lateral dominance. While cytokinin action in vascular plants is described as pleiotropic, this class of plant hormones specifically induces the transition from apical growth to growth via a three-faced apical cell in moss protonema. This bud induction can be pinpointed to differentiation of a specific single cell, and thus is a very specific effect of cytokinin. Cytokinins have been shown to slow aging of plant organs by preventing protein breakdown, activating protein synthesis, and assembling nutrients from nearby tissues. A study that regulated leaf senescence in tobacco leaves found that wild-type leaves yellowed while transgenic leaves remained mostly green. It was hypothesized that cytokinin may affect enzymes that regulate protein synthesis and degradation. CHEMISTRY: A. General adenine derivatives (amino purines) occur as: (a) the free nitrogenous base; (b) a nucleoside (base + ribose); (c) a nucleotide (base + ribose + phosphate); or (d) glycosides The free base is the active form. approximately 40 different structures known. Zeatin (Z), which was first isolated from maize (Zea mays) is the most common cytokinin. Other naturally occurring cytokinins include, dihydrozeatin (DHZ) and isopentenyladenosine (IPA). B. Synthetic cytokinins kinetin – probably byproduct of zeatin degradation there are several other substances with cytokinin activity such as benzyl adenine (benzylaminopurine; BA). C. Cytokinins and nucleic acids can occur as a modified base in tRNA, but the bases exist in the cis form, rather than the typical trans form. These modified bases that are found in all organisms from bacteria to plants to humans. The function of the tRNA cytokinins is not clear, but after hydrolysis of the tRNA the products can act as a cytokinin. The importance of the tRNA derived cytokinins in overall growth and development is not clear, either. Interestingly plants have different sets of tRNA’s with different cytokinins that participate in protein synthesis in the cytoplasm and the plastids. CYTOKININS FUNCTION: A list of some of the known physiological effects caused by cytokinins are listed below. The response will vary depending on the type of cytokinin and plant species (Davies, 1995; Mauseth, 1991; Raven, 1992; Salisbury and Ross, 1992). Stimulates cell division. Stimulates morphogenesis (shoot initiation/bud formation) in tissue culture. Stimulates the growth of lateral buds-release of apical dominance. Stimulates leaf expansion resulting from cell enlargement. May enhance stomatal opening in some species. Promotes the conversion of etioplasts into chloroplasts via stimulation of chlorophyll synthesis ROLE OF CYTOKININS IN PLANTS: Cytokinins are known from cytokinin-overproducing mutants to produce additional leaves and branches on the stem. The stems and leaves produce additional chlorophyll. Wounding often produces a new branch. Leaf senescence is delayed. Apical dominance is released. Cuttings produce adventitious roots slowly and require additional auxin to reliably root. Tumors may form at nodes. The results of applied cytokinins could include release of apical dominance as you demonstrated in kidney beans in laboratory. Cytokinins regulate the cell cycle as we learned early in the semester. Cytokinins delay senescence. You carried out this project at home with isolated wheat primary leaf tips in various solutions of plant hormones. Those treated with cytokinins should have demonstrated delayed senescence (stayed green longer). Of course, remember the auxin dose responsethere is such a thing as too much of a good thing! Cytokinins cause nutrient diversion. Cytokinin-treated leaves become sinks for nutrients such as amino acids. This is shown in a classic experiment in plant physiology CYTOKININS CONJUGATION: As you can see in the diagram below, the natural cytokinin ribosides can be attached to sugars to form glycosides that have reduced or no cytokinin activity. The plant also can produce enzymes to cleave the sugar and restore full cytokinin activity. Thus conjugation with sugars and retrieval from these bound forms is a possible pathway in plant cells. However, it is also true that the ribosides themselves are a form of conjugation. All studies to date seem to indicate that the free-base has to be cleaved from the ribose too before the compound has any true activity. Plants carry out this reaction easily and rapidly, so ribosides appear to have activity on their own, but this is an artifact. Cells in culture require the cytokinin to be freethese sometimes lack the enzymes to cleave the ribose, so supplied ribosides are inactive and the free-base must be supplied in the medium. The native cytokinins also occur as modified bases in RNA and DNA strands. In fact cis-zeatin (a less active form) is found in many tRNA molecules in almost all living cells of all species! The extent to which the free cytokinin pool is altered by conjugation with other nucleotides or released from nucleotide polymers is not clear. CYTOKININS DEGRADATION: In addition to synthesis and conjugation, the pools of cytokinins can be altered by degradation. Below is how one natural cytokinin is made inactive: REFERENCES http://www.plant-hormones.info/cytokinins.htm Kieber JJ (March 2002). Tribute to Folke Skoog: Recent Advances in our Understanding of Cytokinin Biology. J. Plant Growth Regul. 21 (1): 1–2. doi:10.1007/s003440010059. PMID11981613. Campbell, Neil A.; Reece, Jane B.; Urry, Lisa Andrea.; Cain, Michael L.; Wasserman, Steven Alexander.; Minorsky, Peter V.; Jackson, Robert Bradley (2008). Biology (8th ed.). San Francisco: Pearson, Benjamin Cummings. pp.827–30. Chen CM, Ertl JR, Leisner SM, Chang CC (July 1985). GOVERNMENT COLLEGE UNIVERSITY,LAHOREPage 1