B. Du Bois - 1868 Words

W. E. B. Du Bois was. Du Bois grew up in Massachusetts, but then moved south where he attended Harvard University. Moving south he began to realize the problems of racial prejudice. Du Bois did much documentation of African Americans and their fight for equality. He had learned so much to mention in The Souls of Black Folk that the problem of the twentieth century is the problem of the color line. Du Bois devoted much of his life to The Souls of Black Folk was not well received when it first appeared. Houston A. Baker, Jr. explained in his Black Literature in America that white Americans were not ready to respond favorably to Du Bois s scrupulously accurate portrayal of the hypocrisy, hostility, and brutality of white America toward black America. Many blacks were also shocked by the book because Du Bois announced his opposition to the conciliatory policy of Booker T. Washington and his followers, who favored assimilation and argued for the gradual development of the Negro race through vocational training. Du Bois declared: So far as Mr. Washington apologizes for injustice, North or South, does not rightly value the privilege and duty of voting, belittles the emasculating effects of caste distinctions, and opposes the higher training and ambition of our brighter minds—so far as he, the South, or the Nation, does this—we must unceasingly and firmly oppose him. By every civilized and peaceful method we must strive for the rights which the world accords to men. InShow MoreRelatedB. Du Bois928 Words   |  4 Pagesthe greatest leaders in African American history was born. William Edward Burghardt Du Bois, better known as W.E.B. Du Bois is one of the greatest scholar, writer, editor, and civil rights activist. Many civil rights leaders and other important black leaders and role models see W.E.B Du Bois as the father of the Civil Rights Movement. W.E.B Du Bois paved the way for many African Americans in the country. Du Bois played a very influential role in many movements that would help the African AmericanRead MoreB. Du Bois1593 Words   |  7 Pagesforgotten name that is not brought up in these discussions is W.E.B. Du Bois. An author, speaker, teacher, protester, sociologist, historian, certainly a renaissance man in the truest sense of the phrase. As an author, many of his writings have been very influential, from the time they were released and still to this day. As a spea ker, Du Bois was often outspoken and made it a point to be clear where he stood on an issue. Du Bois the teacher was a very intelligent man who was growing into his viewsRead MoreB. Du Bois Essay1447 Words   |  6 PagesW.E.B. Du Bois was a major force in twentieth-century society, whose aim in life was to help define African-American social and political causes in the United States. History writes that W.E.B. Du Bois was a sociologist, historian, civil rights activist, and Pan-Africanist. However, white people who feared him labeled him a trouble maker and some black people saw him as an outcast. No matter what Du Bois’s critics thought about him, Du Bois was the voice of African-American fight for equality. AsRead MoreTheu.s. B. Du Bois1310 Words   |  6 PagesSame Ideas, Different Results For more than a hundred years, important African-American leaders such as Booker T. Washington and W.E.B. Du Bois have been both acclaimed and cherished in our society’s history books for their individual efforts in the struggle for the civil and political advancement of African-Americans. These two seem to be the main advocates for the advancement of African-Americans in the United States of American after the Civil War, but both had a different approach to it. AlthoughRead MoreBooker T. Washington. B. Du Bois1138 Words   |  5 PagesJoseph L. Pendleton English 101 20 November 2014 Booker T. Washington and W.E.B. Du Bois Essay Booker T. Washington and W.E.B Du Bois had significantly different views on how blacks could move towards attaining racial equality during the late nineteenth century in the United States. Washington believed that blacks should work hard to earn economic freedom by means of striving for strong education objectives. Du Bois believed that only political empowerment and voting could end African AmericansRead MoreThe Comet By W. E. B. Du Bois Essay1494 Words   |  6 Pages it is vital to reexamine and revise thoughts and actions in order to prepare for the future. An invisible type of racism that can be revealed with reexamination often times is institutional racism. The short story, â€Å"The Comet† written by W. E. B. Du Bois, is a story set in a post-apocalyptic world. The story shows that in order to bring down barriers of racism, it requires a catastrophic event to occur. Another story that focuses on a similar concept of institutional racism, but uses science fictionRead MoreWilliam Edward Burghardt (. B. ) Du Bois1085 Words   |  5 Pages William Edward Burghardt (W.E.B.) Du Bois was a successful author of many books and an accomplished student. He supported women s rights and the equality of African-American people. He had a pretty ordinary childhood, but his adult life was full of many accomplishments. He began to show a love and talent for reading and writing at a young age and this continued throughout his life. W.E.B. was born February 23, 1868 in Great Barrington, Massachusetts, a mostly European American townRead MoreCivil Rights Activist. B. Du Bois1789 Words   |  8 PagesMike Rinehart W.E.B. Du Bois Review Civil Rights Activist W.E.B. Du Bois tackles a difficult era in American History following the Civil War which is known as Reconstruction. The era itself is well known for its lack of objectivity in the ways it has been viewed by white historians prior to the publication of this book in 1935. Du Bois book, Black Reconstruction in America: An Essay Toward a History of the Part Which Black Folk Played in the Attempt to Reconstruct Democracy in America, 1860–1880Read MoreThe Souls Of Black Folk By. B Du Bois860 Words   |  4 PagesThe Souls of Black Folk by W.E.B Du Bois, is an article on a African-American living in the United States. In this piece of literature Du Bois harshly portrays the personal and third person accounts African – American struggles during a period of slavery. The author uses many songs to depict the cruel life in four essays. In this piece Du Bois coins two main terms, â€Å"double consciousness† and â€Å"the Veil.† Overall the aut hor provides the reader how the twentieth century is the problem of the color lineRead MoreJohn Dewey, Paulo Freire And W. E. B. Du Bois929 Words   |  4 Pagesphilosophies or contributions to society are fully realized. This is true of John Dewey, Paulo Freire, and W.E.B. Du Bois. They were beacons in the dark lighting the way for society. Each progressive during their generation. This first analysis paper will look at the lives, beliefs, ethics, perceptions of justice, and ideas on current educational practice of Dewey, Freire, and Du Bois. Individuals are effected by the lives they live. According to David Hansen in the book titled, Ethical Visions

Comparing Erikson and Marcias Psychosocial Theory of...

Eriksons and Marcias Psycho-social theory of Identity and Tajfels Social Identity theory Introduction of theorists: Erikson: Eriksons description of the eight stages of life has a lot of appeal, and Erikson himself was described in the early 1980s as the fifth most influential psychologist of the century (Gilgen, 1982). Much research has been done on predictions made by Eriksons theory, especially the adolescent crisis of identify vs. role confusion. Erikson is one of the few famous personality theorists who said anything interesting about adolescence.) James E. Marcia: Marcia is the current professor of psychology at Simon Fraser University situated at Vancouver. He has done his P. hd in psychology. He was the one who supported 8 stages of Eriksons theory and presented his own new theory with small changes Henri tajfel Henri tajfel, who is the most famous and influential social psychologist of the 20th Century began his life in Poland. He was born in a Jewish family. He has done great contributions in the field of psychology and late on in Chemistry as well. Eriksons and Marcias psychosocial theory of identity James E. Marcia, professor and researcher from Simon Fraser Universitys Department of Psychology has made four identity statuses which supports Eriksons theory of psychosocial development. Marcia emphasized on adolescents as Erikson has described them. He said An identity crisis is a time of intensive analysis and exploration of

Internal And External Compensation Of An Operational AmplifierÂÂ

Question: Discuss the internal and external compensation of an operational amplifier? Answer: Introduction Operational amplifier has the ideal frequency response of gain for a set of pre-defined frequencies. Since op amps work with the feedback, there will be certain problems associated with the feedback, especially positive feedback that result in instability and noise and they can be compensated with the compensation techniques. Ideal response The ideal response of the operational amplifier is given as below. Figure: Frequency response of ideal op-amp differentiator(blue), integrator(red) and amplifier(gold). Gain In single pole systems, gain keeps on increasing and it results in decreasing the bandwidth proportionally with the same factor. When it comes to the two pole or double pole, the gain exceeds the gain of the single-pole op-amps. The difference in the gain is seen for all the frequencies or wider range. Roll off Op amp has the frequency response, where the signals are amplified for certain frequencies and attenuated for the rest of frequencies. The point at which the signal is started attenuating and where the response falls slowly to zero, is called roll off. The roll off point will be reduced with compensation for the op amps. Compensation is one process, which is applied to make an op amp that is close to perfect in operation. It is done my making use of RC network, as a judicious patch to the circuit. There is multiple compensation schemes developed and used in the industry. The objective of compensation of an op amp is to gain stability. Compensation can roll off the high frequency of the op amps. Internal Compensation Miller Effect Compensation Circuit: Miller effect compensation circuit Internal compensation can be obtained in many ways and one of the ways is done using a capacitor. For a voltage gain transistor, a capacitor is connected across a collector base junction. The capacitor value is multiplied by Miller effect to stage gain. The closed loop gain obtained is unity or higher unity. Usage The reason internal compensation is done to the op amps are for saving the external components. It allows less knowledgeable users or novice users to use the op amps with fewer complications. However, there are certain applications instructions are to be used to make the op amps to be internally compensated and become stable. Though these are multiple pole systems, they appear to be single pole system with internal compensation, for wider range of frequency. We should not use the op amps with the internal compensation in certain circuits. These should not be used with the some of the negative feedback circuits, as it would result in high frequency instability. Problems The internally compensated op amps are stable, but conditionally. Internal compensation minimizes the closed-loop bandwidth to a best possible extent for the op amps. This is the main feedback of the internal compensation of the op amps. External Compensation External compensation is implemented with more op amps, where the closed loop gain achieved is much higher than unity. Why we use it The primary reason for implementing the external compensation is to gain the stability of the op amp circuit by preventing the oscillations. The other reasons, why we tend to use the external compensated op amps are noise reduction, highest possible bandwidth, flat amplitude response. Types of Compensation Techniques Gain Compensation Lead Compensation In-the-loop compensation Out-of-the-loop compensation Lead compensation Lead-lag compensation Feed-forward compensation Problems Compensation can provide fair level of guarantee of stability of the output. However, any kind of technique used in compensation, especially with the external components, there is quite possibility of the instability at certain higher frequencies, as the gain is increased beyond unity. The same problem can also lead to certain noise level, especially, at higher frequencies. Conclusion Op-amps need compensation for optimum operation, in order to give closer frequency response, in ideal condition. The gain varies from single-pole and two-pole systems. Roll off is an important point, where the bandwidth is calculated, accordingly. Internal compensation is implemented rarely during the design for ready to use and external compensation techniques are often used for optimum operation of the op-amps. Internal compensation is discussed in terms of when to use and when not to use. Later external compensation is discussed with the techniques and the associated problems with the same. References Jacob Millman,Microelectronics: Digital and Analog Circuits and Systems, McGraw-Hill, 1979 Lee, Thomas H. (November 18, 2002)."IC Op-Amps Through the Ages"(PDF). Stanford UniversityHandout ung, Walter G. (2004). "Chapter 8: Op Amp History".Op Amp Applications Handbook. Newnes Sergio Franco, 2014, Design with Operational Amplifiers and Analog Integrated Circuits; 4th Ed;; McGraw Hill