Induction of Beta Galactosidase in E.Coli | Lab Report

Induction of Beta Galactosidase in E.Coli | Lab Report Aim: To study the effects of IPTG, lactose, glucose, chloramphenicol, rifampicin and streptomycin induction on the units of beta-galactosidase of E.coli Introduction In 1961, a special group of units that able to control its beginning and ending of transcription activities by undergoing induction process was discovered by Jacob and Monod. This special enzyme is known as Lac operon which is group of genes that arranged in sequences of promoter region, operated region and structural genes that found in the Escherichia Coli. Promoter region is the site where the RNA polymerases binds to and initiate the transcription process while the operated region in the operon is the site where the regulatory protein such as inducer and repressor bind to and stimulate the genes to turning on or off the transcription process. Lac operon made up of three specific lac genes; there are lac Z, lac Y and lac A and they can be found in the structural genes of the operon. At the end of the transcription process, Lac Z gene can be encoded into ÃŽÂ ²-galactosidase which is an enzyme that used to hydrolyze lactose molecules into allolactose molecules fist then further into glucose and galactose which are the monosaccharide molecules (Kathryn Grace Patterson, 2009). Allolactose is the intermediate product when ÃŽÂ ²-galactosidase used to catalyses the reaction of converting lactose to glucose and galactose. According to Miiller-Hill, Rickenberg Wallenfels, allolactose is a natural and effective inducer to trigger transcription process to occur (1964). lacY encodes into ÃŽÂ ²-galactoside permease which playing the role in transporting lactose molecules into the cell while lacA is converted into ÃŽÂ ²-galactoside transacetylase through transcription process which is an enzyme that involved in adding an ac etyl group (CH3) from acetyl coenzyme A to the 6 position of the ÃŽÂ ²-galactosidase (Xing Guo, Wang, Laurence R. OlsenSteven L. Roderick, 2002). As the inducer such as allolactose (natural inducer) or IPTG, Isopropyl ÃŽÂ ²-D-1-thiogalactopyranoside which is an artificial inducer binds to the operated region and deactivated the repressor protein. Hence, repressor protein generated by the lac I gene cannot binds to the operated region which stimulates the RNA polymerases to bind to the promoter region and start the transcription process which is positive control mechanism. On the other hand, negative control mechanism occurs when active repressor protein binds to the o-site (operated region), it blocks the RNA polymerases binds to the p-site (promoter region) and thus no transcription can take place. IPTG acts as the inducer due to its structure is similar to the allolactose. o-nitrophenol ÃŽÂ ²-galactosidase Isopropylthiogalactosidase (IPTG) ortho-Nitrophenyl-ÃŽÂ ²-galactosidase  which known as ONPG is used to measure the ÃŽÂ ²-galactosidase enzymatic activities in this experiment which show a yellow colour when ÃŽÂ ²-galactosidase  presence. ONPG has a similar structure as lactose which also catalyze by the beta-galactosidase enzyme to form galactose + O-nitrophenol whereas the O-niotrophenol responsible to the colour changes. When the intensity of yellow colour increases, the rate of enzymatic activity also increases. Hans Noll and Joseph Orlando also mentioned that o-nitrophenol-beta-galactosidase is hydrolyses by ÃŽÂ ²-galactosidase enzyme but not for IPTG molecules (Hans Noll Joseph Orlando, 1960). Hypothesis: a) IPTG activates beta-galactosidase enzyme at most effective effects. b) The rate of beta-galactosidase enzymatic activities depend on the time of induction. Materials and Methods: Part A: Time course of induction of ÃŽÂ ²-galactosidase by IPTG Induction of the ÃŽÂ ²-galactosidase enzyme. Two different sets of culture condition were investigated. One set in the condition with IPTG (5mM) and another set in the condition of adding water as the control experiment. 15 labeled microfuge tubes which contain 100  µl of the CTAB solution which used to kills the E. coli cells and lyses the cells to release the contents including ÃŽÂ ² -galactosidase were prepared and placed in the ice bath. 2.5ml of actively growing Escherichia Coli K12 was transferred into two separate 50ml conical flasks and covered with the foil immediately and then immersed in the temperature of 37  °C shaking water bath. 250 ÃŽÂ ¼l of water was added into the control flask and note the time as t=0 and then transferred 200 ÃŽÂ ¼l of the E. coli culture out immediately into the microfuge tube which labelled as 0c tube, mixed well and stored in the ice bath. The same procedure for another set of conical flask but 250 ÃŽÂ ¼l of IPTG was used inst ead of water. After that, two conical flasks were placed in the shaking water bath to maintain the temperature constant at 37 °C.The previous two steps were repeated for preparing the 1, 2, 3, 4, 5, 7, 10, 12, 15, 30 and 45 minute time points for the induction flask and 15 and 45 minutes time points for control flask. ÃŽÂ ²-galactosidase activity of each sample was ready to be observed after addition ONPG and Na2CO3 which used to stop the assay activity by changing the pH value to 11. (School of Biotechnology and Biomolecular Sciences, 2012). ÃŽÂ ²-galactosidase Assay. 15 sample of microfuge tubes were placed in the 37 °C water bath for 5 minutes to reach thermal equilibrium. Addition of 200 ÃŽÂ ¼l of 3mM ONPG into each sample at every 30 intervals and addition of 300 ÃŽÂ ¼l of 1M Na2CO3 into the microfuge tube followed by order after exactly 5 minutes of time of ONPG induction to deactivate the ÃŽÂ ²-galactosidase enzyme activities. The time of ONPG induction was recorded. All samples were centrifuged for 5 minutes and then 300 ÃŽÂ ¼l of supernatant of each sample was taken out and read the absorbance under 414nm with 300 ÃŽÂ ¼l water used as the blank. (School of Biotechnology and Biomolecular Sciences, 2012). Part B: Characteristics of the induction of ÃŽÂ ²-galactosidase Exactly same procedures in the Part A were carried out but several different of conditions were tested in this experiment following by: *A. 250 ÃŽÂ ¼l of IPTG (5 mM) and 250 ÃŽÂ ¼l of water (this is to keep the culture at close  to the same concentration for all alternatives) *B. 250 ÃŽÂ ¼l lactose (20 mM) + 250 ÃŽÂ ¼l H2O. *C. 250 ÃŽÂ ¼l IPTG (5 mM) + 250 ÃŽÂ ¼l glucose (20mM). *D. 250 ÃŽÂ ¼l IPTG (10 mM) + 250 ÃŽÂ ¼l glucose (20mM).. E. 250 ÃŽÂ ¼l IPTG (5 mM) then, after the 10 min sample is removed, add 250 ÃŽÂ ¼l  chloramphenicol (200ÃŽÂ ¼g/ml). F. 250 ÃŽÂ ¼l IPTG (5 mM) then, immediately after the 10 min. sample is removed,  add 250 ÃŽÂ ¼l rifampicin (250 ÃŽÂ ¼g/ml). G. 250 ÃŽÂ ¼l IPTG (5 mM) then, immediately after the 10 min. sample is removed,  add 250 ÃŽÂ ¼l streptomycin (500 ÃŽÂ ¼g/ml) . Note: At zero time point, all materials were added into set A, B, C and D while the antibiotic that used in the set E, F and G was added after 10 minutes time points sample has been taken out. (School of Biotechnology and Biomolecular Sciences, 2012). Discussions: From the graph shown in the figure 2, it can clearly see that the units of beta-galactosidase per ml of bacterial culture show a positive results when IPTG used in the induction but no response when water used instead of IPTG. The longer the IPTG induction time, the greater the units of beta-galactosidase per ml of bacterial culture produced. It can be explained that, IPTG acts as the inducer which depressed the repressor protein into inactive form by undergoes conformational change in the shape of the repressor protein that prevent them from binding to the operator region. Thus, the RNA polymerases can bind to the promoter site without any obstacles, transcription of lac operon occurs. Therefore, it can be concluded that inducer is playing a significant role in inducing of beta-galactosidase enzyme. Model data provided by the coordinator was used instead of the raw data because there is induction timing error when transferred the sample which causes the failure of the group results as it can notice that there is a sudden decrease in the value of the beta-galactosidase per ml of bacterial culture produced during 12 minutes in the figure 1. Based on the information provided in the part B experiment, the highest value of unit of beta-galactosidase produced was observed when IPTG was presence in the culture environment. An increasing trend of response with lower efficiency of effect were shown in the lactose, IPTG (5mM)+glucose and IPTG (10mM)+ glucose induction. However, as rifampicin, streptomycin and chloramphenicol added into the culture samples, a increasing concentration of beta-galactosidase enzyme at the beginning of experiment until 10 minutes then the reactions started to maintain at the constant level. The observations can be elucidated that when both IPTG and lactose were used as the inducer, they play the similar mechanism but the only reason that causes lactose had lower performance is IPTG will not be broken down during reaction whereas lactose will be degraded or used by the cells. As the rate of lactose degradation increases, the concentration of inducer in the culture decreases. In addition, glucose and galactose were formed after hydrolysis of lactose molecule. Glucose molecule is more preferred than the lactose molecule by the E.coli. Hence, a lower performance was shown when lactose was used as the inducer and IPTG always the best choice of inducer to use in the experiment. Since the glucose molecules involved in the experiment, a mechanism named as catabolite repression can be used to illustrated the other two IPTG (5mM)+glucose and IPTG (10mM)+ glucose conditions. Catabolite repression is a mechanism that represses the transcription process by introducing glucose molecules into the reaction since E.coli is more preferred glucose than IPTG while IPTG is essential for switching on the reaction. When the concentration of glucose molecule increases, the level of cyclic-AMP becomes lower. CAMP is required to start the transcription process as it is needed to binds with the Catabolite activator protein (CAP protein) and form an active complex which promotes RNA polymerases binds to promote region. Therefore, if cAMP level is low, there is inactive complex produced it unable to deactivate the repressor protein so repressor protein will bind to o-site and inhibit the occurrence of the transcription process. On the other hand, if the glucose molecule is absence, the high level of cAMP permit the transcription process to take place due to the cAMP binds to the CAP protein to form cAMP.CAP complex and deactivated the repressor protein, transcription takes place. Since the glucose is the preference substrate so when concentration of IPTG increases, it also will not affect the result when glucose is supplied. CTAB solution which also defined as the cetyl trimethyl ammonium bromide and used in the experiment to remove the E.coli cells and also destroyed the membrane of the E.coli cells in order to release ÃŽÂ ²-galactosidase enzyme that needed for the experiment from its content. E. coli is the source of the beta-galactosidase enzyme in the experiment. In the IPTG+ chloramphenicol culture condition, there was only IPTG inside the sample at the first 10 minutes and induction of enzyme was occurs but after Chloramphenicol was added the units of beta-galactosidase of bacterial culture remain constant due to the reason that Chloramphenicol is an antibiotic that inhibit the protein synthesis process and growth of E.coli (Ambrose,P.J,1984). The polypeptides synthesise of the RNA in the E.coli was hindered when added Rifampicin (Campbell, E. A et al, 2001). Rifampicin changes the shape and structure of the ribosomes which makes the lyses of the ribosomes (Sippel Hartmann, 1968) and also preven ts RNA polymerases from binding to promoter region. After streptomycin was added into the culture sample, Streptomycin inhibits growth of the E.coli by leading to misread the mRNA and protein synthesize disturbance when low amount of streptomycin provided (Modolell,  Juan, 1969). Hence, induction of beta-galactosidase activity was prohibited. Nevertheless, high quantity of Streptomycin added will even cause the death of E.coli.

What Leadership Means Essay -- Leadership Leaders Management Essays

What Leadership Means Leadership is 'the behaviour of an individual when he is directing the activities of a group towards a shared goal'. (Hemphill and Coons, 1957, p.7) A leader is interpreted as someone who sets direction in an effort and influences people to follow that direction. How they set that direction and influence people depends on a variety of factors. To really comprehend the 'territory' of leadership, one should briefly scan some of the major theories, notice various styles of leadership and review some of the suggested traits and characteristics that leaders should have. There are many leadership theories. Arthur G. Jago (1982) proposed a framework that organizes leadership theories based on each theory's focus and approach. "Focus" refers to whether leadership is viewed as a set of traits or as a set of actions. Focus on Traits: Theories with such a focus see leaders as having certain innate or inherent personality traits that distinguish them from non-leaders. These personality traits are supposed to be relatively stable and enduring. Focus on Behaviour: Theories with this type of focus see leadership as observable actions of the leader instead of personality traits. "Approach" is concerned with whether a particular theory or model of leadership takes a universal or a contingent perspective. Universal Approach: This approach believes that there is a universal formula of traits or behaviour for an effective leader. In other words, the universal approach assumes that there is "one best way" to lead in all situations. Contingent Approach: Contrary to the universal approach, the contingent approach does not believe the "one best way" formula. It believes that effective leadership depends on the specific situation. I am going to analyse two theories in detail, which according to me appear contradictory are Blake and Mouton?s Managerial Grid Theory (1978) under the head behaviour theories and Fiedler?s Contingency theories under the head contingencies theory. Behavioural Theories For over 20 years, a major thrust in leadership research has focused on the various behavioural patterns or styles used by different leaders and the functions fulfilled by these individuals. This research examined the impact that leadership behaviour had on the performance and satisfaction of followers. From... ... totally group or task-oriented; group members and the situation itself, all influence a leaders effectiveness. The leader needs to be aware of his own behaviour and influence on others, individual differences of group members, group characteristics, task structure, environmental and situational variables, and adjust his leadership style accordingly. Leadership needs to be adaptive. Organizations have changed over the past several decades with regard to the structuring of work methods and processes. Moving away from the traditional hierarchical design, most organizations are developing flatter, leaner structures that support a more empowered, team-based workforce. The nature of leadership has also changed significantly over time. References Gary A. Yukl, (2002) Leadership In Organizations, Prentice-Hall International Edition, 2nd Edition, Peter L. Wright, (1996) Managerial Leadership, Routledge, 1st Edition, Bittel L. R., The McGraw-Hill 36 ?hour Management Course, (McGraw-Hill, 1989), Fred E. Fiedler, (1987), A Theory Of Leadership Effectiveness, McGraw-Hill, 1st Edition Blake, R. R. and Mouton, J. S. (1978) The New Managerial Grid, Houston TX What Leadership Means Essay -- Leadership Leaders Management Essays What Leadership Means Leadership is 'the behaviour of an individual when he is directing the activities of a group towards a shared goal'. (Hemphill and Coons, 1957, p.7) A leader is interpreted as someone who sets direction in an effort and influences people to follow that direction. How they set that direction and influence people depends on a variety of factors. To really comprehend the 'territory' of leadership, one should briefly scan some of the major theories, notice various styles of leadership and review some of the suggested traits and characteristics that leaders should have. There are many leadership theories. Arthur G. Jago (1982) proposed a framework that organizes leadership theories based on each theory's focus and approach. "Focus" refers to whether leadership is viewed as a set of traits or as a set of actions. Focus on Traits: Theories with such a focus see leaders as having certain innate or inherent personality traits that distinguish them from non-leaders. These personality traits are supposed to be relatively stable and enduring. Focus on Behaviour: Theories with this type of focus see leadership as observable actions of the leader instead of personality traits. "Approach" is concerned with whether a particular theory or model of leadership takes a universal or a contingent perspective. Universal Approach: This approach believes that there is a universal formula of traits or behaviour for an effective leader. In other words, the universal approach assumes that there is "one best way" to lead in all situations. Contingent Approach: Contrary to the universal approach, the contingent approach does not believe the "one best way" formula. It believes that effective leadership depends on the specific situation. I am going to analyse two theories in detail, which according to me appear contradictory are Blake and Mouton?s Managerial Grid Theory (1978) under the head behaviour theories and Fiedler?s Contingency theories under the head contingencies theory. Behavioural Theories For over 20 years, a major thrust in leadership research has focused on the various behavioural patterns or styles used by different leaders and the functions fulfilled by these individuals. This research examined the impact that leadership behaviour had on the performance and satisfaction of followers. From... ... totally group or task-oriented; group members and the situation itself, all influence a leaders effectiveness. The leader needs to be aware of his own behaviour and influence on others, individual differences of group members, group characteristics, task structure, environmental and situational variables, and adjust his leadership style accordingly. Leadership needs to be adaptive. Organizations have changed over the past several decades with regard to the structuring of work methods and processes. Moving away from the traditional hierarchical design, most organizations are developing flatter, leaner structures that support a more empowered, team-based workforce. The nature of leadership has also changed significantly over time. References Gary A. Yukl, (2002) Leadership In Organizations, Prentice-Hall International Edition, 2nd Edition, Peter L. Wright, (1996) Managerial Leadership, Routledge, 1st Edition, Bittel L. R., The McGraw-Hill 36 ?hour Management Course, (McGraw-Hill, 1989), Fred E. Fiedler, (1987), A Theory Of Leadership Effectiveness, McGraw-Hill, 1st Edition Blake, R. R. and Mouton, J. S. (1978) The New Managerial Grid, Houston TX

Chapter 2 Review of Related Literature Sample

CHAPTER 2 REVIEW OF RELATED LITERATURE AND STUDIES FOREIGN STUDIES In its broadest sense, impeachment is the process by which public officials may be removed from office on the basis of their conduct. Strictly speaking, it is the decision by a legislature to accuse an official of one or more offenses that warrant removal according to constitutional standards. A vote to impeach then triggers a trial based on those charges. The most famous impeachment proceedings have involved presidents, but every state has its own procedures. Most follow the federal model in general, but vary widely in their specifics.At the federal level, impeachment starts in the House of Representatives, where members may initiate resolutions to impeach a sitting president. The House Judiciary Committee decides if a resolution merits a formal impeachment inquiry. A simple majority vote in the full House can launch a formal inquiry. The House Judiciary Committee conducts an investigation to determine if allegations against a president warrant charges, or articles of impeachment. If a simple majority of the full House votes to charge a president with at least one article of impeachment, that indictment will move to the Senate for trial.At that point, the president has been â€Å"impeached† by the House. House members act as or appoint congressional prosecutors. The chief justice of the Supreme Court presides over the trial in the Senate chamber. A two-thirds vote is required to convict and remove from office. The U. S. Constitution states that, â€Å"The President, Vice President and all civil Officers of the United States, shall be removed from Office on Impeachment for, and Conviction of, Treason, Bribery, or other high Crimes and Misdemeanours. † (Article II, Section  ). The House of Representatives has impeached two Presidents: Andrew Johnson and Bill Clinton.Johnson was charged in 1868 with eight articles of impeachment, but was acquitted by a single vote in the Senate tri al (depicted in the above engraving). Bill Clinton was charged with four articles of impeachment by the House in 1998, but was acquitted by the Senate early the next year. Richard Nixon resigned in 1974 before a final vote in the full House could send him to trial on three articles of impeachment. Each state constitution outlines a unique impeachment procedure, including variations on the list of impeachable offenses, protocol for an impeachment trial and the body responsible for an initial investigation.According to the Associated Press, seven governors in U. S. history have been removed from office following impeachment proceedings. The National Conference of State Legislatures said that a longer list would include states that have investigated governors for alleged offenses, voted to impeach a governor ahead of a trial, or held trials that resulted in acquittal. The only governor to be removed from office in the last 80 years was Gov.Evan Mecham of Arizona, who was convicted in 1 988 of obstructing justice and misusing $80,000 in state money that he was charged with funnelling to his car dealership to keep it afloat. In January 2008, the Illinois House of Representatives voted 114-1 to impeach Gov. Rod Blagojevich for abuse of power in connection with the federal investigation that had led to his arrest the month before. Mr. Blagojevich was charged with trying to sell the Senate seat vacated by Barack Obama and with seeking to extort campaign contributions in return for official actions, including providing reimbursement to a hospital.Following the process that has been generally adopted by state legislatures in recent decades, the Illinois House created a special investigative committee, which made a recommendation in favor of impeachment to the entire body. In all states except Alaska, Nebraska and Oregon, the House votes on articles of impeachment ahead of a trial. In Alaska, the process is reversed, according to The Book of States. That state's Senate mu st impeach a governor by voting on impeachment articles in order to initiate a trial in the House. Nebraska is the only state with a unicameral legislature.Without a state House, the Nebraska Senate votes to impeach before passing articles on to the state Supreme Court for a trial. Oregon is the only state without constitutional provisions for impeachment of a governor or other executive and judicial officers, according to the NCSL. Those officials may be removed from office, but not by the state's legislature. State courts in Oregon may try public officials for criminal offenses, but the procedure depends upon the jurisdiction of a crime. LOCAL STUDIES Section 1, Article XI of the 1987 Constitution declares that â€Å"Public office is a public trust.Public officers and employees must at all times be accountable to the people, serve them with utmost responsibility, integrity, loyalty, and efficiency, act with patriotism and justice, and  lead modest lives. â€Å"   These words echo loud and clear today as our country’s leaders find themselves at the brink of conducting this constitutional process. Impeachment has been defined as a national inquest into the conduct of public men. It is a necessary safeguard to ensure that public officers have the moral fitness and integrity to fulfil their mandate.The provisions on impeachment are enshrined in Article XI of the 1987 Constitution. Under the Constitution only the following public officers may be impeached: The President, Vice-President, the Members of the Supreme Court, the Members of the Constitutional Commissions, and the Ombudsman. This list of officers is exclusive. All other public officers and employees may be removed from office as provided by law, but not by impeachment. The grounds for impeachment are: culpable violation of the Constitution, treason, bribery, graft and corruption, other high crimes, or betrayal of public trust.These grounds are exclusive and offenses not falling within these parameters shall not be sufficient for impeachment purposes. The process begins at the House of Representatives, which has the exclusive power to initiate all cases of impeachment. A verified complaint must be filed by either a Member of the House of Representatives or by any citizen upon a resolution of endorsement by any Member thereof. Once the verified complaint has been filed it shall be included in the Order of Business within ten session days, and referred to the proper Committee within three session days thereafter.The Committee, after hearing, and by a majority vote of all its Members, shall submit its report to the House within sixty session days from such referral, together with the corresponding resolution. The resolution shall be calendared for consideration by the House within ten session days from receipt thereof. In the committee hearings, a vote of at least one-third of all the Members of the House shall be necessary either to affirm a favourable resolution with th e Articles of Impeachment of the Committee, or override its contrary resolution.The vote of each Member shall be recorded. If however, the verified complaint or resolution of impeachment is filed by at least one-third of all the Members of the House, the same shall constitute the Articles of Impeachment, and trial by the Senate shall forthwith proceed. The Senate has the sole power of sole power to try and decide all cases of impeachment. When sitting for that purpose, the Senators shall be on oath or affirmation. When the President of the Philippines is on trial, the Chief Justice of the Supreme Court shall preside, but shall not vote.No person shall be convicted without the concurrence of two-thirds of all the Members of the Senate. The person impeached shall be  removed from office  and shall be  disqualified to hold any office under the Republic of the Philippines, but the party convicted shall nevertheless be liable and subject to prosecution, trial, and punishment accord ing to law. It is clear that the liability does not end at the Senate, the person impeached shall also be held for appropriate action as a result of his illegal and improper acts.

To Kill a Mockingbird Movie vs Novel - 1238 Words

What You See Is Not What You Read Life is full of lessons, the movie version of the novel To Kill a Mockingbird by Harper Lee is not! Harper Lee entwines these life lessons throughout her novel; however, the movie version fails to incorporate these lessons into its plot. Thus, the movie version must be deemed incomplete, as it is most certain that there are many important lessons that Jem and Scout learn throughout the novel. A few key characters who taught these lessons to the children and who will be the subject of this essay are Ms.Dubose and the morals learnt from her successful fight against morphine addiction, the role of Aunt Alexandra in front of Scout as a female role model and lastly Mr.Dolphus Raymond’s preferred associations†¦show more content†¦This relationship forms on the other side as well. Scout begins to understand what being a lady is about, at one point she say, â€Å"After all, if Aunty could be a lady at a time like this, so could I.†(Lee 318). Throughout the book Aunt Alexandra’s views and actions become less ignorant and Scout becomes more understanding about what Aunt Alexandra has to say. It is a pity that the director refrained from including Aunt Alexandra in the movie version. This was most probably done because Aunt Alexandra has something to say on almost everything that happens and therefore there would have been a lot more scenes in the movie if she were included. However, it was indeed a bad choice because the character of Aunt Alexandra would have made the movie much more interesting. Thus, the movie must be deemed incomplete compared to the novel. Another non-prejudice character who was not included in the movie was Mr.Dolphus Raymond. He teaches Scout and Dill a very important lesson that reverberates throughout the novel; All that is gold does not glitter (J. R. R. Tolkien). 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Review The American Revolution in Indian Country - 720 Words

Malcolm X once said â€Å"We (African-Americans) didnt land on Plymouth Rock, the rock was landed on us.†1 While not comparing it as such, nor discounting in any way the tremendous suffering and struggle for equality African-Americans have endured, this work presents a very strong argument that the native peoples of North America, have suffered as much or arguably more so. Indeed several bands had already been obliterated by disease and war with the White invaders from the sea before most of the English colonies were even well established, a pattern which would only continue to get worse. For the Indians living in what is now the eastern United States in the 1770s, the revolution was merely the continuation of a generational war they had been steadily losing for over a century already. Native peoples all across the vast hinterlands had coped with the destruction of their lives and livelihoods as they always had, by adapting and evolving as their situations changed which contin ued through the revolutionary and beyond. The prologue presents a sweeping, but well described overview of the complex network of interwoven societies that existed in North America on the eve of the American Revolution. America was already well on its way to becoming the great melting pot of societies and cultures by the mid-1700s. It had become a world where boundaries, bloodlines, and loyalties were all largely fluid and often blurred, with many of the key players being of mixed race of Indian,Show MoreRelatedBook Review of Liberty and Power Essay959 Words   |  4 PagesWang, N.Y. Review written by Richard Foust Book Review Harry L. Watson’s book, â€Å"Liberty and Power, The Politics of Jacksonian America†, takes an analytical look at America and her politics during the Age of Jackson. Watson uses the economy and the ideological mindset of the people, to support a powerful argument about the beginning of American political parties and their importance in defining the political direction of the country. Watson arguesRead MoreWorld Is Flat: Great Sorting Out Essay1315 Words   |  6 Pagessocieties will have to deal with and adapt to the changes that globalization brings to the way of doing business. It affects whole companies and individuals. He gives the perception of the world is flattening by comparing the Industrial Revolution to the IT Revolution that is happening right now. The flattening process was identified by Karl Marx and Frederich Engels in the Communist Manifesto, published in 1848. Marx’s writings about capitalism state â€Å"the inexorable march of technology and capitalRead MoreRemoval Act of 1830 Essay1481 Words   |  6 Pagesman many thousands of years ago from Eurasia to the American continent. The people from the migration to the Americas had absolutely no contact with the people in Europe and Asia after they migrated. In fact, the two civilizations evolved in totally different manners, and at different speeds. The people in the Americas, or Native Americans existed mainly as hunter-gatherers using tools of bone, wood, and useful animal parts. Native Americans formed their beliefs into many different religions,Read MoreViolence Brought by Violence1464 Words   |  6 PagesMilitarism was one of the reasons because when a nation starts to mobilize troops in attempt to keep the country free of threat, other countries will do the same (Aldous). Alliance was stated because an alliance is basically a promise to watch other’s back (Aldous). This happens to be the worst kind since when two countries go to war, it really is no t just two but all the allies of those countries will join the war in attempt to watch the other’s back. Imperialism was one of the causes because thisRead MoreRevolutionary Mothers : Women During The Struggle For America s Independence By Carol Berkin1612 Words   |  7 PagesIntroduction A critical analysis entails the review of the book Revolutionary Mothers: Women in the struggle for America’s independence by Carol Berkin. This comprised of details on women who had been involved in struggling to fulfill the independence of America. Women played their role at facing or creating impact towards the war. This outlines on myriad of women,s lives as well as getting to know the obstacles that they encountered during the war. This aids in bringing out the idea that not onlyRead MoreBook Analysis: The Texas Rangers and the Mexican Revolution1280 Words   |  6 PagesThe Texas Rangers and the Mexican Revolution: The Bloodiest Decade, 1910-1920. By Charles H. Harris III and Louis R. Sadler (Albuquerque: Univ. of New Mexico, 2007. Print.) This is the most comprehensive collection of The Texas Rangers during the Mexican revolution that has been published. Charles Harris III and Louis Sadler share the details behind this unstable period by uncovering the views and actions of the Rangers during the highest point of border violence up until that time. The RangersRead More`` The Legend Of Sleepy Hollow `` : How Did Irving And Sedgwick Use American History?1520 Words   |  7 Pagesa remote period of American history, that is to say, some thirty years since, a worthy wight of the name of Ichabod Crane† (Washington Irving, â€Å"The Legend of Sleepy Hollow†, 1820). How did Irving and Sedgwick use American history in their writings? Well into the early 19th Century the idea of ‘The American’ was far reserved from what we recognize now, due in a large part to the the lack of a credible sense of culture and history emitted from the settlers. Whilst the Revolution had asserted theirRead MoreEssay about Nature’s Influence on the War of 18121690 Words   |  7 Pagesvictor and the issues that caused the conflict were never resolved. Nature played a crucial role in the outcome. Because of humanity’s natural strive for power, the living and fighting conditions of the soldiers, and the geographical layout of the countries involved, nature was a driving force during the War of 1812. Hunger and greed are a part of human nature as much, if not more than, any other emotion. The struggle for power and land has driven humanity since the beginning of time. Wars andRead MoreTechnological Advancements of the Victorian Period Essay1863 Words   |  8 PagesThe Industrial Revolution changed financial, political and social elements of Victorian society. The revolution can be broken down to the effects of social order and the economy, and the matter of the industrial revolution can then be looked into as parts. In the first stage, it contends the positive effect of the Industrial Revolution on economy and urbanization. There was a colossal benefit picked up from the Industrial Revolution by the privileged and the government. However, the working populationRead MoreA Delegate Of The Constitutional Convention1257 Words   |  6 Pagesthe constitutional convention in Philadelphia made this statement about James Wilson Government seems to have been his peculiar study, all the political institutions of the world he knows in detail, and can trace the causes and effects of every revolution from the earliest stages of the Grecian commonwealth down to the present time. This statement describes James Wilson to a tee, he not only had how the government worked memorized but he also could take that knowledge and infuse it into the constitution

What is Psychosocial Development - 948 Words

What is psychosocial development? Psychosocial development is development on a social realm. Psychosocial development is how one develops their mind, maturity level, and emotions over the course of one’s life. The rate of development depends on different factors such as biological processes as well as environmental factors. A man named Erik Erikson who was a psychoanalyst who believed that early childhood successes and failures were responsible for influencing later developmental stages developed this theory. Erikson’s theory of psychosocial development is based around the theory that social experience has an impact over an entire lifespan. There are eight stages developmental stages of development in the psychosocial theory and I will†¦show more content†¦These plans could include things such as what kind of career they want, their sexual orientation, and who they are in life (Cooper, 1998). The intimacy vs. isolation stage is between the ages of 19 to 40 and is very important to the relationships one will hold during these years. Erikson believed that it did not matter how successful one was financially, they are not truly complete developmentally until one is capable of true intimacy. People that have not successfully created a sense of identity will have a fear of commitment however, someone that has successfully developed a sense of self is able to form bonds and create successful relationships as an adult (Davis Clifton, 95). Middle adulthood is the generatively vs. stagnation stages in which an adult must care of others and realize that they need a family or a legacy. During this stage, people will nurture their own family or find ways to nurture others that need to be nurtured outside their immediate family. If an adult does not overcome the crisis during this stage, then they will not grow which will result in them being selfish and self-centered. The last stage in Erikson’s theory is the integrity vs. despair important s tage. This is the time in one’s life when they begin to look at their life and the role that they have played in life. As one reflects on theirShow MoreRelatedReflect Upon Your Own Life in Terms of the Eriksons 8 Stages of Psychosocial Development and Write About What Was Your Experience Like Handling Each of the Eight Developmental Tasks/Conflicts.3296 Words   |  14 Pagesexperiences eight crises or conflicts in development. During each of the eight stages of personality development, a specific developmental task or conflict will be more significant than any other. Please reflect upon your own life in terms of the Erikson’s 8 stages of Psychosocial Development and write about what was your experience like handling each of the eight developmental tasks/conflicts (where applicable). 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Although I have been aware of the implications of certain psychosocial factors in someone’s well-being, I wanted to know the other aspects of midlife psychosocial development and its effect as the person ages. 2. A summary of related literature or studies Erikson’s psychosocial development theory became theRead MoreErikson s Theory For Psychosocial Development1000 Words   |  4 PagesErikson was a theorist who focused on his theory for psychosocial development. The article Psychosocial Identity Development Theories, highlights the keys points and idea of Erikson’s psychosocial theory. Erikson was very focused on the idea of ego identity and obtaining full potential. His theory or â€Å"model† stats that, â€Å"identity formation is based on overcoming conflicts that individuals encounter during adolescent and early childhood.†(Karkouti, 2014, p.257) He believed that all people must endureRead MoreTeaching Young Children Self Regulation Through Children s Books By Patricia Cooper Essay1299 Words   |  6 Pageschildren’s psychosocial development. The article argues that teachers need to understand how certain pieces of literature affects a child’s psychosocial development and how teachers s hould go about choosing books that most positively affect psychosocial development. 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Stages of Psychosocial Development Comprehension of Erikson’s eight stages of psychosocial development requires anRead MoreErikson s Psychosocial Theory : Development Of Ego Identity1293 Words   |  6 PagesZoi Arvanitidis 05/16/17 ECEE-310 Dr.Alkins Studying Erikson’s Psychosocial theory Erik Erikson was a student of another theorist, Sigmund Freud. Erikson expanded on Freud’s psychosexual theory. Erikson later developed the psychosocial theory. This theory described the effect of one’s social experiences throughout one’s whole lifespan. One of the main elements of Erikson’s psychosocial theory is the development of ego identity. Ego identity is the conscious sense of self that we developRead MoreThe Boys Building A Racetrack1207 Words   |  5 Pagesencounters the situation where he tries to explain to all of the other boys around him to join and help him. Bob begins explaining this idea that he believes is brilliant. 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Erikson suggested that everyone experiences a series of psychosocial stages insteadRead MoreEarly Childhood Psychosocial Development Essay1307 Words   |  6 Pages The development starts from infant until old age. Childhood is a time of tremendous change, but people also continue to grow slowly and develop during adulthood. It is a continuous process with a predictable sequence. These developmental changes may be influenced by genetic factor, environment factor and maturation factor. There are three types of human development changes: physical development, cognitive development and psychosocial development. Our group member’s choice is psychosocial development

Supplier Relationship Management SRM

Question: Describe about the Supplier Relationship Management? Answer: SRM (Supplier Relationship Management) highlights towards the protocol and the practice, which are commonly found to be associated with suppliers. It can be analyzed that most of the suppliers highlight SRM as an organized approach to define the need and demand for the providers. It further focuses on establishing and thereby managing the concept of company-to-company linkage. This is obtained to fulfill the needs of the sector. When there is no conscious procurement-supplier linkage, the practices along with the protocol in play are termed to be informal. However, formal or not, the academic along with the consulting researchers tend to organize approaches for the supplies. The protocol highlights towards the development of positive sourcing results. The protocol of SRM highlights towards the relation numbers 3 through 6. The primary emphasis of the concept lies in the identification of the performance attributes that are attained from the suppliers. Managing these aspects based on the relationship highlights towards the consequences. The Opportunity sourcing (i.e. number 7) focuses towards the practices associated with the current need of sources. This is considered to be true discovery, which is an initiative to identify and thereby determining the usefulness of the protocol. This is frequent in both the high-tech industries along with High Margin Consumer Product industries. It is often encountered that the supply professionals tend to have innovative product revenues as a part of the performance metrics. It can be assumed that every relationship tends to require dynamic management along with the practical leadership attributes that develop benefits for an organization. As one shift from length price relationship towards the development of a joint venture, the business linkages become closer and well defined. The benefits calculated are much deeper and broader. The internal relationship is considered equally important as the external ones. The SRM domain tends to link the standard operations such as accounting, logistics, and engineering. The Intrinsic factors found to work against the concerted efforts of the suppliers. It can also create high consistency of the various purposes associated with an organization. It can be stated that there are two types of measurements, i.e. targets and means. The objectives tend to the end goals, which are being sought. This includes the cost, price, quality, logistic details, marketing timing, etc. The means of measurement are considered the sub-component activities, which adds for accomplishing the targets. A common fault that is associated with the context is the over requiring means of measurements. The simpler approach is to perform several ended goal targets. The primary motto of involving stakeholders, understanding the final market, creating aligned measures are all associated with this context. Whether a defined target is used, it has been encountered that the stakeholders have their impact on the performance of the group. The concept of SRM is commonly found to be associated with strategic rollout sourcing. Thereby it can be analyzed that the management and the leadership of working with the strategic suppliers are preferred by pure transactional attributes. Every SRM is associated with determination and communication needs, which further focuses in expectation of the suppliers, performance measurement, and involvement of action for compliance. The interactions are involved in providing the suppliers with expectations of communication along with the flow of the products and services. Moreover, SRM categorizes the supply along with the markets of the goods and services, which interacts with the selected suppliers to meet the measurable performance goals. SEM highlights towards the development of suppliers to acquire the benefit of buying a company or an organization. SRM focuses on identifying and thereby measuring the suppliers through measurement, oversight, and management. The closer collaborative supplier relationships are of two types. This involves the suppliers possessing capabilities for buying the company, which does not have enough strategy needs and demands. The basic goal of SRM highlights towards the development of communication with the suppliers. They tend to share a methodology, business term and the information to improve familiarity with one another. SRM intends in ensuring the providers and thereby familiarize better core business of the enterprise. The SRM solution editors define the protocol based on four stages: a) Cooperative Design: It consists of the integration of the supply problems associated with designing of the products. This involves suppliers through cooperative design tools. This ensures minimum costing at every level. b) Identification of suppliers: This highlights towards the purpose of identifying potential suppliers. Preparation of scorecard is attained by qualifying them according to their cost and production capacity, delivery deadline and the quality guarantees. Finally, the best suppliers are invited to submit their bids. c) Selection of Suppliers: The suppliers are selected by Reverse Auction Mechanism. The role of the buyer and the seller are reversed in this context. The SRM tools have bidden interface that makes it possible to undergo three types of requests (known as RFx). These are as follows: i) RFQ (Request for Quotation): Simple application towards the quoted price. The supplier submitting the lowest bid is selected. ii) RFP (Request for Proposal): Request demanding to present the commercial proposal, specifying the price and information of the company. The properties of production capacities stock and delivery deadlines are counteracted with this protocol. The selected supplier evaluates the proposal based on different criteria. iii) RFI (Request for Information): This consists of issuing a simple request for information based on the products and services offered by the supplier. This is not necessarily implied on bidding. iv) Negotiation: This formalizes the contract between the providers (selected) and enterprise, which includes specific clauses regarding logistics, service quality, payment terms and other duties. It is often encountered that the challenges of supplier relationship management are the increasing reliance on them and exposing the risk factors. The protocol and role of the transaction are ill defined, which inhibit further performance improvement. This limit the value forms of the supplier relationship and thereby it makes the performance more efficient. Even though there are various suppliers who are tracked and thus reported, the performance, issues may seem to persist, and the organization may not have the ability to recoup with the resulting cost. It has been estimated that most of the organization identifies the suppliers, which are strategic and thereby can be managed efficiently. In the absence of the clear set of supplier management protocol, the role of the providers in the organization tends to set the agenda and the canvas for the building organization. The initial aggressive sourcing for most of the companies yields dramatic savings and other benefits, which sustains the benefits of attaining higher reductions. This would have been difficult without an effective SRM system. The formal program for the supplier development does not exist in limiting the organizations ability to form a win-win value with the supply base. Their inefficiency introduces towards many employees for spending time on the unnecessary reluctant interactions with the suppliers. The procurement functioning plays a leadership role in sourcing and ongoing activities. As the sourcing matures in an organization, the objectives along with value proposition of purchase need to be evolved simultaneously. Most of the organizations lack the system capabilities, which are required to be regularly supported by the supplier management across the supplier lifecycle. References Burnson, P. (9 June 2014). New Focus on Supplier Relationship Management. Retrieved from https://www.scmr.com/article/new_focus_on_supplier_relationship_management.Engel, B. (2011). 10 Best Practices You Should Be Doing Now. Retrieved from https://supplychainquarterly.com/Guest Contributor. (3 December 2013).North Rizza, M. (17 February 2015). The Five Secrets of Supplier Relationship Management. Retrieved from https://www.supplymanagement.com/