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Tutor profile: Bohyun Y.

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Bohyun Y.
Recent Duke graduate, previous online tutoring experience!
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Questions

Subject: Korean

TutorMe
Question:

How hard is Korean to learn? Can you really learn how to read and write Korean in a few days?

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Bohyun Y.
Answer:

Korean is as hard as any other language to learn - it's probably a harder language to learn if you're used to latin-rooted languages or semantic (meaning-based) languages. Nevertheless, like any language, you can become proficient at Korean with effort and willingness to engage with the language. In a sense, it really is possible to learn how to read and write Korean in a few days. The Korean writing system was specifically designed by King Sejeong during the Joseon dynasty for the peasants and civilians who could not learn how to read and write the Chinese writing system (which Korea was using at the time). King Sejeong and his experts crafted a straight-forward, phonetic writing system that only had 24 alphabet letters that could combine to form any sounds. In other words, if you know how to speak (and listen to) Korean, learning how to read and write really does take a few days at most, and you can become almost fluent with the language in a matter of days. Of course, there are some complicated grammar and sounds with some words, but in general, you will be able to at least write in manner that everyone will understand and read many texts without a problem. So, the answer to the question is yes, you can learn to read and write Korean in a few days. Even if you don't know Korean at all, you can sound out the words and read or write them if you hear them. The only problem is that you just won't know what you're writing or hearing. From then on, it's just like learning any other language.

Subject: Writing

TutorMe
Question:

What is more important - a good story or good writing (especially for applications or essays)

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Bohyun Y.
Answer:

In an ideal world, a good story with good writing is the best. However, in my opinion, if you had to choose between the two, good writing is better for the reader to become engaged with your writing. No one can think of an amazing, unique idea any time they want - therefore, developing writing skills that allows the reader to truly engage with your story, no matter now mundane or ordinary, is generally more important than having the best story ever. For example, you can watch a movie with a great idea and premise, but if the execution of the movies' scenes are lacking, then the movie will not be a good watch. Likewise, you have to develop skills that lets the reader empathize with what your saying, picture the situation in their own lives or yours, and be able to easily remember what they've read.

Subject: Biology

TutorMe
Question:

How does the female menstrual cycle work exactly in detail? What are the exact steps?

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Bohyun Y.
Answer:

The menstrual cycle can be divided into two major phases: follicular phase and luteal phase. The cycle begins with the first day of menstruation. *Some general background knowledge: -GnRH hormone from the hypothalamus stimulates Follicule Stimulating Hormone (FSH) and Luteinizing Hormone (LH) to be secreted from the anterior pituitary. -FSH stimulates estrogen production while LH stimulates ovulation and corpus luteum maintenance. -Except right before ovulation, GnRH, FSH and LH, and estrogen and progesterone are in a negative feedback loop. Follicular phase: Day 1 - ~Day 12 In ovary, oocyte surrounded by granulosa cells (follicle) which grows in response to Follicle Stimulating Hormone (FSH) secretion which increases blood level of estrogen. Due to the estrogen, during this time, the uterus goes through a growth phase - uterine walls thicken and uterine glands develop. This increased estrogen negatively feedsback to FSH that by day 12, FSH levels are very low. Estrogen secretion from the follicle rises rapidly between 12-14. Now, estrogen acts in positive manner in the hypothalamus (more detailed explanation involves second locus of Kisspeptin secreting neurons), and this positive feedback causes increase in GnRH secretion in the hypothalamus which causes a surge in FSH and LH secretion from anterior pituitary gland. Ovulation: Day 12-14 The surge in LH (and FSH) causes ovulation, or release of ovum to abdominal cavity. Luteal phase: Day 15 - Day 28 Following ovulation, the empty granulosa cells (now without an egg) converts into progesterone secreting tissue - the corpus luteum which secrets both estrogen and progesterone. This secretion of estrogen and progesterone inhibits FSH and LH secretion from anterior pituitary. During this time, the uterus goes through a secretory phase regulated by progesterone - the uterus prepares for embryo implantation. If fertilization doesn't occur, by ~Day 28, the uterine glands atropy and uterine surfaces sloughs off. If fertilization doesn't occur, the corpus luteum eventually degenerates, leading to decrease in estrogen and progesterone production. This then permits GnRH production to rise and cycle begins again.

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