Thứ Hai, 26 tháng 4, 2010

How to take Ph.D


1. In K. Williamson,
Research methods for students and professionals: Information management and systems (2nd
ed.). Wagga Wagga, Australia: Centre for Information Studies, Charles Sturt University.
2. Tony Greenfield (ed), ‘Research Methods for Postgraduates’
3. How to Write a Ph.D. Dissertation

How to Write a Ph.D. Dissertation

E. Robert Schulman and C. Virginia Cox
Charlottesville, Virginia
Abstract
In this paper we demonstrate that writing a Ph.D. dissertation can have
many benefits. Not only do you obtain extensive typesetting experience,
but afterwards you can have your frequent-flyer literature addressed to
"Dr. Your Name."

Chapter I: Introduction

Ph.D. dissertations (e.g., Schulman 1995a; Cox 1995) are commonly believed to be comprehensive compendiums of the original research done by a graduate student in partial fulfillment of the requirements for the degree of Doctor of Philosophy.² In reality, the Ph.D. thesis is usually a number of disparate chapters whose most important feature is not the thoroughness of the experimental description but rather the width of the margins. In this paper, the second article in a series on scientific writing that began with Schulman (1996a), we will discuss the phenomenon of the Ph.D. thesis.

Chapter II: Preparing to Write

There comes a time in the life of every graduate student when she or he realizes that another two years of graduate school cannot be endured. Even though a year spent writing your thesis will be filled with frustration and angst, it will end up being worth it in order to escape school forever.
Remember the following phrase: "No one will ever read your thesis.'' You'll hear this phrase a number of times as you finish up, and it's vitally important that you believe it to be true. The phrase is important because without it you would be tempted to work on your thesis until everything is perfect, and you would never finish.
Say "It's good enough for the thesis" to yourself several times a day. Tell yourself that you'll correct all the mistakes when you turn the various chapters into independent scientific papers, even though this won't happen (see Schulman 1996a and references therein).

Chapter III: Your Thesis Committee

Your thesis committee should consist of between four and nine researchers in and outside of your field. Each committee member has a specific duty.
Your thesis advisor has the most important job: to reassure you that you don't have to do many of the things you're positive you should do. She or he will likely say, ``It's good enough for the thesis'' fairly often.
You also need one committee member who will insist on more mathematical rigor, one who will demand that the thesis be made more concise by getting rid of all that irrelevant math, and two or three to say that you should do all the things your thesis advisor told you didn't need to be done.
There should also be at least one committee member who will never read the thesis, and who will therefore ask only general questions at your thesis defense. The other graduate students who attend your defense will often bet on which professors read your thesis. Be prepared to determine the winner (note that it is not considered sporting to participate in this game yourself).
Try to set a defense date early so as to give your committee ample time to schedule conferences, vacations, and/or elective surgery for that day.

Chapter IV: Producing the Thesis

Legend has it that doctoral students in ancient times used to produce their dissertations using a device called a "typewriter." While there is some archeological evidence for typewriter use in the past, many researchers doubt the plausibility of such claims (e.g. Schulman 1995a).
These days, dissertations are produced using word processing programs such as Word or Word Perfect, or computer typesetting systems such as TeX or LaTeX. The former will give you practice in drawing by hand all the symbols that aren't supported, while with the latter you have the opportunity to craft new typesetting definitions to satisfy your university's dissertation policies. For example,
\long\def\printfrontnonchapter{\vfil\eject \rightpage\null\vskip 1in \centerline{{\bf \Uppercase{\frontnonchapterheader}}}\vskip 22pt plus 73pt \relax\bigskip\setwidespacing \frontnonchaptertext\par} (Jerius 1992).
Be sure not to choose the wrong method of producing your thesis.

Chapter V: Writing the Thesis

The Ph.D. thesis usually begins with a pithy quote, after which there will sometimes be a dedication to one's parents, life partner, and/or pet tapir.
Following this is probably the most important part of the dissertation: the acknowledgments section. This is the only section that everyone who picks up your thesis will read. They will happen upon your dissertation in the library and flip through the first few pages, looking for a juicy acknowledgments section. This is your chance to make obscure references to secret loves, damn various faculty members with faint praise, or be very mysterious by having no acknowledgments section at all so that everyone wonders what you're hiding.
After the awknowledments should be the various tables of contents, denoting the page numbers on which the reader may find every section, subsection, subsubsection, figure, table, appendix, footnote, and semicolon in the thesis.
Next comes the first thesis chapter, the introduction, which is judged on the basis of how far back in the past you start. Although the introduction is supposed to enable someone with no knowledge of your field to read and understand your thesis, this is an impossible goal. Instead, simply reference sources such as Rontgen (1896), Galileo (1610), Aristotle (-350), or other similarly ancient researchers. The idea to get across is that your work, being based on the work of great scientists of the past, must be truly worthwhile. Even though these works have little to do with your research, your committee isn't going to look up the references.
After the introduction come chapters that describe what you did, where you did it, when you did it, why you did it, and how much more work has to be done before you can obtain definitive results. This last point is usually discussed in the concluding chapter.

Chapter VI: The Thesis Defense

Remember those dreams you used to have about going to class and finding out that there was a big test that day for which you hadn't studied? The thesis defense is worse, because you find out that although you studied very hard, you didn't study the right things.
Your committee members aren't going to waste their time asking you about your research, because you know more about that than anyone else in the world. Instead, they will ask questions that are really about their research or--if they are in a particularly punchy mood--about fundamental mathematics.
The fun part is that at most universities the first part of your defense is open to the public, so that your parents will probably want to come and videotape the event.

Chapter VII: Rewriting

Your thesis defense was tough, but you survived. Your committee members have signed a piece of paper saying that they are satisfied with your dissertation as long as your thesis advisor is happy with the revisions you make. Don't fall into the trap of trying to make everything perfect! Remember the phrase from Chapter II, "No one will ever read your thesis."
Once your advisor is happy with the revisions, take one unbound, unperforated, paginated copy of your dissertation, two copies of your abstract, one extra copy of your title page, the signed evaluation forms from your committee members in a sealed, notarized envelope, the receipt proving your payment of the Thesis Publication Fee, your diploma application, and proof of your doctoral candidacy enrollment to the Bureaucratic Office of Records, Education, and Dissertations (your requirements may vary; void where prohibited).
The folks at BORED will take a ruler to every page in your thesis, making sure that all the margins are correct and insisting that you go back and redo them if even one page is wrong.

Chapter VIII: Distributing Your Thesis

You've passed the format check, and it's time to make a hundred copies of your thesis and distribute them to departmental libraries all over the world so that everyone in your field can read it. Your advisor should pay for the photocopying and postage (see Schulman & Cox 1997 for a detailed justification).
Try not to think of all the errors lurking in your thesis as you address the envelopes to Professor Famous or Doctor Influential. You want to publicize your dissertation as much as possible so that prospective employers will at least have heard your name.
Some journals will publish brief summaries of your dissertation (e.g. Schulman 1995b; Schulman 1996b), but be warned that these journals may want you to format your summary quite specifically. The requirements for the mini-Annals of Improbable Research are particularly restrictive; it can be difficult to summarize five years of work in five lines of text.

Chapter IX: Conclusion

Congratulations, Doctor! You've escaped from graduate school and can now have your frequent-flyer literature addressed to Dr. Your Name, complain when forms only list Mr/Ms/Mrs, and smirk when surgeons whine about all the people with academic doctorates who are making the title meaningless for medical doctors. Go out and make the world a better place.
4.
How to finish a Ph.D.

A few years ago I was asked by several Ph.D. students what advice I could give to finish a Ph.D. While I don't think there is only one answer I do have some principles that worked well for me- if you are a current PhD student hopefully you will find this useful also. If you have any comments or suggestions, I'd love to hear from you.

Over the years I have received many positive comments from Ph.D. students from the U.S., Canada, and as far as China and Korea. Several students have linked this site form their sites. Thank you so much for your feedback. It means a lot to me that some of my thoughts made a difference to you.

"Matt Schonlau's Great Tips - the most detailed, honest and useful advice you can ever find on how to finish your PhD, written by Matt Schonlau; he provides you with a concise but thorough insight into all major aspects of doing and finishing your PhD. What you have to keep in mind doing a PhD: how to focus on your goals for a longer time, how to plan your life in accordance with your research and how not to lose track in order to finish your PhD within a reasonable timeframe. (2003) Start with this one!"

www.phdtips.com (accessed March 6, 2010)

  • Begin with the end in mind
    I found it always helpful to know I what my overall goal was. During my PH.D. I aimed to finish in my Ph.D. in 3 years. I didn't make that in the end - it took 4 years - but that isn't important. The important thing is that I knew in order to make 3 years I had to do a certain course load in the first and second term , I had to take the comprehensive exam the first time it was offered, I had a rough idea of how much time I had to write the dissertation. There are road blocks along the way and things turn out different than you expect. But if you know your overall goal obstacles won't through you off the course, you are just taking a detour.
  • You have no obligation to write an important or even useful thesis
    Sometimes students set out to write this all-encompassing break-through thesis and then fail because they try to accomplish too much at once. Very few researchers achieve fame because of their dissertation work. Try to write a good dissertation, not a great dissertation. Further, don't insist on writing a useful thesis. Your primary goal is to get a Ph.D. , not to change the world. There is enough time for changing the world after your dissertation when you have less constraints about what criteria your work has to meet.
  • Write!
    A psychology student told me once that he spends the entire day doing research and then forces himself at the end of the day to summarize what he found - even if he doesn't think he found anything that day. This is important for several reasons : (a) writing helps your thoughts to crystallize (b) you accomplish your daily task which will make you feel good (c) you can track your progress (d) when you write your thesis you have material to draw on (e) you won't forget what you were thinking two weeks ago. In my opinion most students start too late putting their thoughts into words.
  • Exercise regularly
    I have always found I can work better when I am physically in good shape. During stressful times such as exams, I exercise more often rather than less often. The energy I get from exercise more than compensates for the "time lost".
  • Enjoy your "play time"
    There is a time to work and a time to play. I try to work hard when I work, and not to think at all about work when I don't work. For example, every year I fly home to Germany for Christmas. I never take work to Germany. All that would accomplish is that I would feel bad the whole time about not doing the work. When you have worked hard all week and can afford to take the week-end off, try to get out and do something fun. Try not to think about work at all.
  • Talk to others about your problems
    After finishing his Ph.D. a social scientist at an Ivy League university told me once that at some point during his Ph.D. he had so much dissertation anxiety that he went to see a psychologist at the medical center. To his surprise the waiting room for the psychologist was packed and he recognized several other people. Everyone was there for the same reason. He later emailed one of the students he saw whether he wanted to talk about it . Within 10 minutes he got a reply email : the other student was just as desperate to talk about it. Most Ph.D. students at some point or another have problems - talking to fellow students or professors almost always helps. You are not alone. (The above mentioned student graduated smoothly and now excels working at a very prestigious institution).
  • Record your progress
    Sometime during my second year of my Ph.D. I started writing down every week-end what I had accomplished during the preceeding week. I took great care in this and I often reread what I had done in the past few weeks. This weekly ritual became very important to me and motivated me a great deal. Sometimes in the middle of the week I would realize that I hadn't accomplished anything to be recorded at the end of the week and I would make sure I would get something done.
    In addition, I kept a list of things to do at the white board and marked each item off once I had done it. I wouldn't erase it until a few days later though - because that gave me the satisfaction of seeing what I had accomplished already. I still follow this habit to this day.
    During a Ph.D. you often try something and it doesn't work in the end. That can be frustrating - but I feel that tracking what you have done helps to overcome this frustration. The path to success has unexpected twists and turns in a Ph.D. - and while a failed attempt looks like no progress it really is.
  • Don't find excuses - don't do too many other important things.
    Some of the brightest students sometimes have trouble finishing because they are so successful doing other things that may reasonably also be considered important. A very bright young fellow I know kept taking on temporary consulting jobs working for the UN in Brazil and all kind of other exciting and useful jobs. Working for the UN in Brazil is a great experience and you may not want to pass it up. But at some point finishing your Ph.D. outweighs taking on extra consulting jobs.
  • Choose a dissertation topic you are passionate about
    You will do your best work when you work on a topic that you really care about. This not always possible - but if you have the choice go for it. Also, it is better to come up with your own thesis topic rather than having your supervisor find you a thesis topic. You will find it easier to care deeply about a thesis topic that you came up with yourself.
  • Work on your strengths, not on your weaknesses
    I was once fortunate enough to have a brunch with the famous statistician Erich Lehman - organized by Agnes Herzberg in Kingston, Ontario. Dr. Lehman had an unusual career and had many things to say. I will never forget the following advice he gave : when in England the professors noticed that his background in mathematics was much stronger than in physics. They therefore forced him to take extra classes in physics. On hindsight Dr. Lehman felt that that was a big mistake. He didn't have any passion for physics and he claims he wasn't good at it either - so there was an extraordinary effort going into something that wasn't necessary.
    There may be situations where our passion requires us to work on something we are not good at. For example, my friend Fiona was never interested in any handyman work. However, she was a theatre major and some point she had to know technical theatre operations. And when it was relevant to theatre, she all of the sudden took an interest in handyman work as it related to theatrical set construction.
    Unless necessary though I always thought that it was good advice to work on one's strengths - because otherwise we'll be constantly disillusioned and frustrated.
  • Take charge - it's your life not your supervisor's
    I have always found taking an active role leads to better results than a passive or reactive role. It makes life more exciting. For those of us who like playing computer games - it's like the difference of playing the game and watching the game. Playing is just more fun.
  • Do what is right for you - including the choice of discontinuing your Ph.D.
    A Ph.D. is not for everyone and I think not to continue a Ph.D. ought to be one of your options. I am most impressed with Judy whom I met during my time as a student. She successfully mastered the comprehensive exam, and then decided that she wasn't really all that interested in research. I still hear her say "You know, it's not for everyone" - not disappointed but just matter of fact. She is happier now. However , I do think you should only quit because you have come to the conclusion that you do not enjoy research, not because "it's overwhelming", "it's too much work", or "I don't know whether I can do it" or "I don't like my supervisor". People can do more than they think - they just have to really try.

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