Thursday, May 21, 2020

Morality in The Adventures of Huckleberry Finn - Free Essay Example

Sample details Pages: 3 Words: 787 Downloads: 4 Date added: 2019/05/15 Category Literature Essay Level High school Tags: Huckleberry Finn Essay Mark Twain Essay Did you like this example? The Adventures of Huckleberry Finn was written by Mark Twain in 1884. Twains book tackles many societal issues including slavery, racism, and morality. Throughout the book, Twain shows Huck in positions where he has to make moral choices between what he believes in and what society thinks is right. His stance on these topics is fairly clear, however his subtle nudges towards morality with Huck is what makes the moral of this novel so pure. Twains portrayal of the characters myriad of moral issues demonstrates the theme of morality in the novel. During the first chapters of the novel Twain shows Huck making many poor judgment calls and poor moral choices. There was a myriad of instances when Huck had to face inner moral battles. Twain show that Huck has to choose between what he believes in and what is fit for society, however as the book goes on to about chapter 4, Huck makes a stand to stop an instance where he may have to lie. Huck talks to the judge and asks: Please take it, says I, and dont ask me nothing- then I wont have to lie (Hawthorne 18). Here Huck tells the judge to take his money. He asks him not to ask questions about why and to just take it so that when asked about it he would not have to lie. This shows the moral change Huck starts to possess as this story progresses. Don’t waste time! Our writers will create an original "Morality in The Adventures of Huckleberry Finn" essay for you Create order Twain also shows an exponential growth with Huck when he and Jim run off together. Twain shows the connection that the two grow toward each other. When they find a dead man on a boat than Jim covers the body in order to hide the horrifying sight from Huck. Huck, in turn, starts to feel compassion for Jim and slaves near the end of the book. Huck tries to protect and hide Jim as much as possible, but still has the feeling that he should turn him in. When thinking about Miss Watson, Huck thinks that he did the wrong, even evil, thing by not turning Jim in. Conscience says to me, What had poor Miss Watson done to you that you could see her nigger go off right under your eyes and never say one single word? What did that poor old woman do to you that you could treat her so mean. (Twain 91). Here Twain shows that Huck asks himself why he took Jim from Miss Watson. He wonders what she ever did to him. He begins to think that taking Jim was hurting Miss Watson in a very bad way. With this he still decides to keep helping Jim and decides not to turn him in. This shows that turning Jim in is what society would have wanted but not I how twain shows Hucks moral growth in the story. We see another example of moral choices when Huck and Tom help Jim escape. While they could have just let Jim out and helped him escape, they decided that they needed to make him work for his escape. They wanted to make the escape adventurous like in Toms books. In the book Tom says: It dont make no difference how foolish it is, its the right way and its the regular way. And there aint no other way, that ever I heard of, and Ive read all the books that gives any information about these things. (Twain 245). Huck was very hesitant about this idea but decided to go along with it because Tom said it would be fun and that it was the only thing to do. They make Jim do many crazy and even cruel things. They want Jim to write a journal on an old tee-shirt using blood as ink. They even think of ways to smuggle in nails, so he could cut himself to write with the blood. They even want Jim to carve inscriptions into the walls of the shed with a nail, which is worse for two reasons: Jim cannot read or write, and it would take him years to finish. To make matters worse Tom Sawyer knew the whole time that Jim was thactually free. Huckleberry Finn was a very fun and adventurous book filled with many instances of moral questioning. Huck showed growth in this area and also in his personal connections with people around him. His adventures with Jim were at times fun, sad, and scary all the same time. Even though society wanted Huck to think a certain way. Huck stuck to what he thought was right and what he felt was the best thing to do. Twains writing and telling of the story is like nothing Ive ever read before and I would definitely read this again.

Wednesday, May 6, 2020

What Is Breast Cancer - 937 Words

Breast cancer is one of the most common cancers and the second leading cause of cancer-related death among women in the United States. Up to 6% of breast cancers are advanced or metastatic at the time of diagnosis, requiring chemotherapy1, 2. Aberrant, accelerated growth is a hallmark of cancer3, including breast cancer. The rapid expansion of treatments targeted to aberrant cell growth – for example, cell cycle targeted chemotherapies for the treatment of metastatic breast cancer – allows for precise targeting of specific alterations in tumor cell proliferation pathway with the goal of reducing tumor cellular proliferation and increase tumor cell death while minimizing toxicities associated with chemotherapy. The growing application of†¦show more content†¦This review focuses on currently investigational cell proliferation imaging PET radiotracers to evaluate tumor proliferation in the setting of cell cycle targeted chemotherapy and endocrine therapy for meta static breast cancer. We review the underlying biology associated with cancer proliferation and cell cycle-targeted drugs, followed by a review of the mechanistic underpinnings of cell proliferation tracers, and finally, their application to therapy targeted to aberrant breast cancer proliferation. Cell cycle and proliferation control: Enhancing endocrine therapy with combination with cell cycle targeting agents Proliferating cells must progress through 4 phases of cell cycle to divide (G1, S, G2 and M); however, they may exit cell cycle and enter quiescence (G0) when stressed or deprived of their biological stimuli (for example in breast cancer with estrogen deprivation)7, 8. Cyclin-dependent kinases (CDKs) play a key role in controlling cell cycle progression. Among these kinases, CDK4/6 is the key regulator of G1 to S transition by controlling transcription of genes necessary for cell cycle progression. 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Ece 6604 Final Exam Free Essays

Georgia Institute of Technology School of Electrical and Computer Engineering ECE6604 Personal Mobile Communications Final Exam Spring 2010 Tuesday May 6, 11:30am – 2:20pm †¢ Attempt all questions. †¢ All questions are of equal value. †¢ Open book, open notes, exam. We will write a custom essay sample on Ece 6604 Final Exam or any similar topic only for you Order Now 1a) 5 marks: The LCR at the normalized threshold ? for a 2-D isotropic scattering channel can be expressed as v 2 LR = 2? fm ? e , where ?= ? and Rrms = R ?p = R Rrms E[? 2 ] is the rms envelope level. i) Find the normalized threshold level ? o at which the LCR reaches its maximum value. i) Explain why the LCR at ? decreases as ? deviates from ? o . 1b) 5 marks: Consider a cellular system with a carrier frequency of 2 GHz. Suppose that the user is in a vehicle travelling at 60 km/h. Assuming that the channel is characterized by 2D isotropic scattering, ? nd i) the LCR at the normalized level ? = ? 3 dB. ii) the AFD at the normalized level ? = ? 3 dB. 2) The power delay pro? le for a WSSUS channel is given by ? gg (? ) = 0. 5[1 + cos(2 /T )] , 0, 0 ? ? ? T /2 otherwise a) 3 marks: Find the channel frequency correlation function. ) 4 marks: Calculate the mean delay and rms delay spread. c) 3 marks: If T = 0. 1 ms, determine whether the channel exhibits frequencyselective fading to the GSM system. 3) Cellular CDMA systems use soft hando? , where the transmissions to/from multiple base stations are combined to give a macro-diversity. Here we consider the e? ects of path loss and shadowing and ignore multipathfading. Suppose that the received signal power corresponding to the link with the ith base-station, ? pi , has the probability density function p? pi (x) = v dBm) (x ? pi (dBm) ) 1 exp ? 2 2 2 2 . where pi (dBm) = E[? pi (dBm) ] The ? pi are assumed to be statistically independent. a) 5 marks: The reverse link uses selection combining such that the best basestation is always selected. In this case, ? s p (dBm) An outage occurs if ? s p = max ? p1 (dBm) ? ? th (dBm) , . . . , ? pL (dBm) (dBm) . What is the probability of outage? b) 5 marks: The forward link uses coherent combining such that ? mr(dBm) = ? p1 p (dBm) + . . . + ? pL (dBm) Again, an outage occurs if ? mr(dBm) ? ?th (dBm) . What is the probability of p outage if p1 (dBm) = p2 (dBm) =  ·  ·  · = pL (dBm) ? 4) Consider the reception of a signal in the presence of a single co-channel interferer and neglect the e? ect of AWGN. The received signal power, C , and interference power, I , due to Rayleigh fading have the exponential distributions 1 ? x/C ? ?e C 1 ? pI (y ) = ? e? x/I I pC (x) = ? ? where C and I are the average received signal power and interference power, respectively. a) 5 marks: Assuming that C and I are independent random variables, ? d the probability density function for the carrier-to-interference ratio ? = C . I Hint: If X and Y are independent random variables, then the probability density function of U = X/Y is pU (u) = pXY (v, v/u)|v/u2 |dv . b) 5 marks: Now suppose that the system uses 2-branch selection diversity. The branches are independent and balanced (i. e. , the distribution pU (u) is the same for each branch. What is the probability density function of ? at the outpu t of the selective combiner? 5) Suppose that a system uses selection diversity. The branches experience independent Rayleigh fading. However, the average received bit energy-to-noise ratio on each diversity branch is di? erent, such that ?i = 2? i ? o ? i = 1, . . . , L a) 5 marks: Find the probability density function of the bit energy-to-noise ratio at s the output of the selective combiner, denoted by ? b . b) 5 marks: If DPSK modulation is used, write down an expression for the probability of bit error. Obtain a closed-form expression if possible; otherwise leave your expression in integral form. How to cite Ece 6604 Final Exam, Essay examples