Showing posts with label comprehensive exam. Show all posts
Showing posts with label comprehensive exam. Show all posts

Thursday, February 14, 2013

A Scientist's Conclusion, Part 6

This is the penultimate installment of this series. The first installment can be read here.

"Harry, would you like to continue the questioning," asked Carl of Dr. Stillwell, who was seated to the left of Dr. Munster.

"Yes, thank you, Carl." Then, turning to the student, Dr. Stillwell asked, "Mr. Park, as a Pathologist, I’m always interested in the contribution of basic research to an understanding of human disease. What relevance might your research project have to the diagnosis, prognosis or management of human disease--for example, neoplasia?"

The question was a fair one, even an easy one, and there were a couple of fairly obvious answers to it. Carl looked expectantly at Sung. Whether Sung Lee Park was still in a state of shock from his prior embarrassment, whether he did not understand the question and did not dare risk having it clarified, whether he was no longer willing to commit himself on any issue, whether he had decided that all was lost and had given up—whatever the reason, Sung glanced quickly toward Dr. Stillwell, looked back up at the wall and mumbled in a low tone, "I don't know."

"Well then, why the hell are you doing it," boomed Stillwell. Then, with a shrug, he muttered, "I pass."

The exam was by this time clearly an irredeemable disaster, but for some reason, all present felt compelled to carry out the structure of the examination format like a mindless minuet. Or perhaps no one knew what to do to prevent its inexorable progression. Like machines, around the conference table, each professor asked his prepared questions and, like a robot, swaying slightly back and forth, his arms crossed over his chest, Sung responded either monosyllabically or else said, "I don't know." Only once did he begin a sentence in response to one of the questions, but then stopped in confusion and neither finished the sentence nor offered any other answer or explanation.

Dr. Vanadian, when his turn came, declined to question the hapless candidate. When the prescribed ordeal was finished, Carl asked Sung to leave the room, scarcely looking at him as he walked out. The examination had lasted just less than one hour.

The first to speak, after Sung was out the door, was Dr. Davidson. "That was the worst exam I have ever attended!"

Carl had been mortified by his student's performance, and his chairman's pointed comment made it that much more excruciating.

"The boy was obviously suffering from panic," offered Vanadian, who spoke with an accent, although his grammar and syntax were flawless.

"Nonetheless, he can't be passed if he can't answer a few simple questions," put in Munster, with a tone of sarcasm.

Carl did not feel like defending his student and wouldn't have known how, had he been so inclined. He said, "The issue we have to decide today is whether he should be failed outright or be allowed to retake the examination."

"I really wonder if he is Ph.D. material," mused Dr. Bock, echoing Carl's previously expressed fears.

"I've sometimes worried about that, myself," agreed Carl.

"He's been here almost too long to flunk him out just like that, without recourse," said Dr. Karesh.

"Would it be possible to recommend that he pursue the Master's degree rather than the Ph.D.?" asked Vanadian.

"We could," said Carl, then added, "It would take at least another year's work to tie up loose ends and write the thesis."

"It would be only fair to give him that option at least," said Karesh.

"Well, all right, how many are in favor of giving Sung the option of pursuing a Master's degree?" asked Carl.

Drs. Vanadian and Karesh raised their hands.

"How many are in favor of failing him outright?"

Dr. Munster raised his hand.

"Harry, do you wish to vote?" Carl asked Dr. Stillwell.

"No," came the reply.

"Then I will tell him that he has failed his Ph.D. comprehensives, but that he does have the option of finishing a Master's degree if he chooses to," said Carl by way of summary and conclusion.

With that, the august group rose from their chairs around the conference table and recessed from the room:  all silent, all engaged in private analyses and justifica­tions. Carl felt an especially heavy mental and emotional burden, a major component of which was resentment against this student with whom he had spent so much time, in whom he had invested so much effort, and who had performed so poorly—who had, in fact, never seemed to understand the WHY of anything.

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For the final installment of this story, click here.

Wednesday, February 6, 2013

A Scientist's Conclusion, Part 5


Sung did a good job on his oral presentation of the thesis project; Carl's coaching had been taken seriously. The presentation was organized in a logical and obvious fashion. Sung stood confidently and enunciated slowly and carefully. The questioning began relatively benignly; Dr. Karesh asked about the turnover time of the tumor line that Sung was using, which led to more general questions on cell cycle kinetics and how cell cycle data were obtained and analyzed. Next came a question on the antigenicity of the tumor line and whether or not it secreted substantial amounts of antigen into the culture medium. Carl had forseen these questions and Sung was prepared to answer them. In fact, he was so well prepared that his answers sounded as if he were reading them from notes. Carl wondered, absently, whether Sung had taken the questions Carl had given him, written out answers to them, and memorized the written answers.
Then Dr. Munster asked, "Why are you using the B-14 tumor line for your studies?"

Sung looked baffled, glanced around at Carl, then said, "I use B-14 tumor line in laboratory."

"Yes, but why do you use it," pursued Munster.

"It is tumor line," answered Sung.

Carl could not refrain from responding. "Otto, it's a fast-growing tumor line that can be made to slow and differentiate by a variety of agents. It's an ideal tumor line for his problem."

Munster turned in his chair. "It's not your exam, Carl." He then looked back at Sung. "How long have you been working with this cell line?"

"Two year," came the reply.

"And after two years, you still don't know the plural of year?" enunciated Munster with Germanic precision.

Sung was baffled, not knowing whether that had been a question, nor whether he was expected to answer it. "Two yearrss," he said with effort, the "r" and "s" sounds rolling in awkward succession off his stiffened tongue and out his pursed lips.

"In the two years that you've been working with it, has the cell line changed?" continued Munster.

"No," said Sung Lee

With Sung's definite "NO." Carl knew that the difficult questioning was about to begin, and he felt a sense of helplessness as he foresaw Sung sinking deeper and deeper into a quicksand of inadequate answers resulting from his failure to perceive the intent behind a question.

"How do you know the cell line hasn't changed?" pursued Munster.

"It has same antigen," responded Sung, ready with an answer and regaining a bit of confidence.

"Is surface antigenicity the only criterion for identifying a cell type? Could there be antigens on the cell surface now that weren't there two years ago and that you haven't assayed for? What about other criteria for identification? Have you karyotyped the line recently? Have you checked metabolic pathways?"

After this barrage of questions, Sung hesitated a moment and finally said, "No." Another hesitation. He glanced at the blank projector screen, then at the blackboard, began walking toward it, stopped, and then turned back toward the expectant faces before him. He moved his mouth a bit as if intending to say something but, apparently thinking better of it, remained silent. He put his hands on the podium and a blank expression came over his face as he stared over the heads of the examiners.

"No?  No, what," queried Munster incredulously. "Have you not checked metabolic pathways? Did you not do karyotyping? Do you not know whether or not your cell line has changed?"

"No," responded Sung, still staring at the back wall of the conference room, his face reddening.

"I have no further questions for the time being," said Munster, turning to Carl.

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For the next installment, click here.

 

Wednesday, January 30, 2013

A Scientist's Conclusion, Part 4


As the time for Sung's comprehensive exam drew near, Carl still doubted that Sung was, in fact, prepared, that he could ever be prepared to stand that examination and do it justice. Even in their weekly sessions, Sung hesitated to complete answers and usually refused to pursue a line of reasoning without receiving a nod of affirmation, or an authoritative "Go ahead." from Carl. Carl mused to himself, half­ seriously, that he might be able to nod Sung through some of the more difficult questions on the oral exam if the student could only get himself off to a correct start.
The week of comprehensives came and Sung passed the general written exam—not brilliantly but adequately. His specialty written exam was uneven; he had badly botched one of the three questions on that exam. Because of his performance, he had been given a borderline pass. Thus, the issue of whether he passed or failed, and, hence, whether or not he could continue his pursuit of the Ph.D. degree, hung upon the oral exam. His committee was composed of four individuals in addition to Carl: Drs. James Karesh and Otto Munster from the Biochemistry Department, Dr. Harris Stillwell from Pathology, and Dr. Anando Vanadian from Immunology. Carl was very proud of having gathered this committee for his first graduate student; they were among the best minds and greatest reputations at the institution. Their willingness to serve on this committee was taken by Carl, perhaps with some justification, as an indication that he was accorded a certain esteem as a scientist, despite the fact that he had not yet achieved national recognition.
The format of the oral exam was structured so that the student first gave an overview of his thesis project, including highlights of any preliminary data he might have obtained. Then the committee members were free to question the student on any material to which he could reasonably be expected to have been exposed during his course work and his literature search pertaining to the thesis topic. In practice, the examination usually began with questions centering around the candidate's thesis project, then ranged farther afield as answers to questions suggested new questions to the examiners. A successful exam was usually fairly brief, perhaps an hour and a half, whereas less successful exams often went on for three or four hours.
Carl had rehearsed Sung twice on his presentation and, after each rehearsal, had asked Sung several questions of the type that might logically relate to the presenta­tion. Carl had also scheduled the examination for the afternoon at 2:00 P.M., for two reasons. First, he hoped that the committee would be in a pleasant, ruminative mood after lunch, and secondly, he hoped that, since the exam was to begin fairly late in the day, it might not last for more than two or three hours and Sung might be spared some of the more probing and esoteric questions that often come at the end of a long examination.
The afternoon of the examination, two others were present in the seminar room in addition to Sung's committee: the departmental graduate advisor, Dr. William Bock, and the department chairman, Dr. Henry Davidson. Carl was not entirely surprised, since it was quite within accepted procedure for any member of the department to be present at the oral examination of any departmental student. Nonetheless, their presence made Carl uneasy.

The next installment is  here .